CN101443502B - Nonwoven fabric - Google Patents

Abstract

The invention claims a non-woven fabric that in a form of non-woven fabric provided with unevenness and openings, is regulated so as to avoid extremely high density at protrudent portion, concave portion, and the like, and a process for manufacturing the non-woven fabric. Against fiber web (100) supported from its bottom face side by given support member (220), a fluid composed mainly of a gas is blown from the upper face side of the fiber web (100) so as to move fibers (101) constituting the fiber web (100), thereby forming a plurality of openings (3). In the non-woven fabric (170), a plurality of openings (3) continuously formed at given intervals along given direction and a plurality of coupling parts (4) formed between openings (3) adjacent to each other in given direction are provided.

Description

Bondedfibre fabric

Technical field

The present invention relates to bondedfibre fabric.

Background technology

In the past, bondedfibre fabric is used for extensive fields such as medical supplies such as cleaning implements such as amenitiess such as paper nappy and sanitary napkin, wiper, mouth mask.Like this, bondedfibre fabric uses in various different fields, but in fact, under the situation of the goods that are used for every field, is necessary to make with the character of the purposes that is suitable for various goods and the mode of structure.

Bondedfibre fabric for example, forms fibrages (fiber web) by utilizing dry process or damp process etc., utilizes chemical adhesion method or heat viscosity method etc. will form fibrolaminar fiber and is bonded to each other and forms.In making the technology that forms fibrolaminar fiber combination, also exist and comprise that the method etc. that a plurality of pins are thrust this fibrolaminar method or jet water course repeatedly applies the method for the power of physics to fibrage from the outside.

But these methods just are interweaved fiber eventually, do not adjust orientation or the configuration or the fibrolaminar shape etc. of the fiber in the fibrage.That is the bondedfibre fabric that utilizes these methods to make, nothing but simple sheet.

In addition, also proposed to be provided with the scheme of the bondedfibre fabric of opening.Described scheme has disclosed in order to form opening on bondedfibre fabric, bondedfibre fabric is clamped in the pressing mold of the projection that is equipped with laterally outstanding pin etc. and accepts the accepting between the side bearing body of this projection, by making jut connect bondedfibre fabric, form (for example, the opening flat 6-330443 communique) such as methods of three-dimensional opening with reference to the spy.

Summary of the invention

But this bondedfibre fabric by nip jut and accepting between the supporting mass of side of the fiber assembly that will constitute bondedfibre fabric, forms concavo-convex or opening.Therefore, for example, the fiber compression that grades at the circumference of the wall part that will be positioned at protuberance, opening, improving fibre density, and then heating causes filming sometimes so that during the on-woven materialization.

Thereby for example, under the situation of surface patch that this bondedfibre fabric is used for absorbent commodity etc., sometimes, the protuberance that fibre density is high or the edge of opening of the filming liquid that becomes is difficult to see through.Like this, cause under the situation of a large amount of liquid at protuberance or opening periphery, liquid holdup can produce the wearer's skin of making dirty etc. or give the possibility of wearer's uncomfortable feeling in this bondedfibre fabric.

The purpose of this invention is to provide a kind of bondedfibre fabric, in the bondedfibre fabric that is formed with concavo-convex or opening, adjust, make that locating liquid at protuberance or recess etc. sees through easily.

Discoveries such as the inventor, the aeration supporting member of the stuffiness portion by having regulation to utilization from upper face side gas jet from the fiber web of following side bearing, this fibroreticulate fiber of formation is moved, can form opening or concavo-convex, thereby finish the present invention.

(1) a kind of bondedfibre fabric in the bondedfibre fabric with first longitudinal direction and second direction, comprising: a plurality of peristomes, and described a plurality of peristomes form along aforementioned first direction; A plurality of connecting portions, described a plurality of connecting portions be formed on the regulation in aforementioned a plurality of peristome peristome and and the peristome of this regulation between peristome adjacent on the aforementioned first direction; In aforementioned a plurality of connecting portion each, the containing ratio of the second direction orientation fibers that is orientated on aforementioned second direction is than the containing ratio height of the first direction orientation fibers that is orientated on aforementioned first direction.

(2) bondedfibre fabric described in (1) as described above, for aforementioned a plurality of peristomes, the fiber on each periphery of described a plurality of peristomes is along each periphery orientation of described a plurality of peristomes.

(3) as described above (1) or (2) described in bondedfibre fabric, each of aforementioned a plurality of peristomes is circular or ellipse roughly roughly.

(4) as described above (1) in (3) any one described bondedfibre fabric, for aforementioned a plurality of openings each, the length of aforementioned a plurality of peristomes on aforementioned first direction is 0.1mm to 5mm.

(5) as described above (1) in (4) any one described bondedfibre fabric, aforementioned a plurality of peristome and aforementioned a plurality of connecting portion, first side at this bondedfibre fabric, formation is along the recessed a plurality of slot parts of thickness direction, further have mode with the regulation slot part in aforementioned a plurality of slot parts adjacent and in aforementioned first side along the outstanding a plurality of convex shaped parts of thickness direction.

(6) as (5) described bondedfibre fabric, for each of aforementioned a plurality of slot parts, the height of the thickness direction of this bondedfibre fabric, at each below 90% of aforementioned height of aforementioned a plurality of convex shaped parts.

(7) as (5) or (6) described bondedfibre fabric, the convex shaped part of the regulation in aforementioned a plurality of convex shaped parts, the convex shaped part adjacent with the slot part of regulation in clipping aforementioned a plurality of slot part compared aforementioned height difference.

(8) as (5) in (7) any one described bondedfibre fabric, each of aforementioned a plurality of connecting portions, in each of aforementioned a plurality of slot parts, further the thickness direction in this bondedfibre fabric is recessed.

(9) as (5) in (8) any one described bondedfibre fabric, the top of each of aforementioned a plurality of convex shaped parts is flat roughly.

(10) as (5) in (9) any one described bondedfibre fabric, as with second of the face of the face opposition side that forms aforementioned a plurality of slot parts in this bondedfibre fabric and aforementioned a plurality of convex shaped parts on, form towards with the outstanding a plurality of zones of the projected direction opposition side of aforementioned convex shaped part.

(11) as (5) in (10) any one described bondedfibre fabric, on aforementioned first direction, be wavyly and rise and fall.

(12) as (5) in (9) any one described bondedfibre fabric, aforementioned second side in this bondedfibre fabric is general planar.

(13) as (5) in (12) any one described bondedfibre fabric, for a plurality of sidepieces in each of aforementioned a plurality of convex shaped parts each, the containing ratio of aforementioned first direction orientation fibers is than the containing ratio height of aforementioned second direction orientation fibers.

(14) as (5) in (13) any one described bondedfibre fabric, for each of aforementioned a plurality of convex shaped parts, the spatial area rate that the spatial area rate of measuring from aforementioned first side of the convex shaped part of described regulation is measured than aforementioned second side from the convex shaped part of aforementioned regulation is big.

(15) as (5) in (14) any one described bondedfibre fabric, each of aforementioned a plurality of convex shaped parts, have as a plurality of central portions that are clipped in the zone in aforementioned a plurality of sidepiece, for each of aforementioned a plurality of central portions, fibre density in each of described a plurality of central portions is than each fibre density height of aforementioned a plurality of connecting portions, and is lower than each fibre density of aforementioned a plurality of sidepieces.

(16) as (5) in (15) any one described bondedfibre fabric, the fibre density of each of aforementioned a plurality of convex shaped parts is at 0.20g/cm³Below, the fibre density of each of aforementioned a plurality of connecting portions is at 0.20g/cm³Below.

(17) as (5) in (16) any one described bondedfibre fabric, each of aforementioned a plurality of connecting portions, the weight per unit area in each of aforementioned a plurality of connecting portions is lower than each weight per unit area of aforementioned a plurality of convex shaped parts.

(18) as (5) in (17) any one described bondedfibre fabric, each of aforementioned a plurality of convex shaped parts, weight per unit area is 15g/m²To 250g/m²,

Each of aforementioned a plurality of connecting portions, weight per unit area are 5g/m²To 200g/m²

(19) as (1) in (18) any one described bondedfibre fabric, the mixed with fibers that constitutes this bondedfibre fabric has hydrophobic fiber.

The effect of invention

According to the present invention, can provide a kind of in forming the bondedfibre fabric of concavo-convex, opening, so that locate to see through easily the bondedfibre fabric that the mode of liquid is adjusted at protuberance, recess etc.

Description of drawings

Figure 1A is the plane of the bondedfibre fabric of first kind of form of implementation.

Figure 1B is the ground plan of the bondedfibre fabric of first kind of form of implementation.

Fig. 2 is the enlarged perspective of the regional Y among Fig. 1.

Fig. 3 A is the plane that the elongate member equally spaced is configured in side by side the supporting member on the netted supporting member.

Fig. 3 B is the perspective view that the elongate member equally spaced is configured in side by side the supporting member on the netted supporting member.

Fig. 4 A is the plane of the netted supporting member of Fig. 3.

Fig. 4 B is the perspective view of the netted supporting member of Fig. 3.

Fig. 5 is illustrated in fiber web by under the state of side below the supporting members supports of Fig. 3, and the side gas jet is with the diagram of the state of the bondedfibre fabric of first kind of form of implementation ofshop drawings 1 upward.

Fig. 6 is the side view of the bondedfibre fabric manufacturing installation of first kind of form of implementation of explanation.

Fig. 7 is the plane of the bondedfibre fabric manufacturing installation of key diagram 6.

Fig. 8 is the enlarged perspective of the regional Z among Fig. 6.

Fig. 9 is the ground plan of the ejection portion among Fig. 8.

Figure 10 A is the plane that is formed with the tabular supporting member of a plurality of elliptoid openings.

Figure 10 B is the perspective view that is formed with the tabular supporting member of a plurality of elliptoid openings.

Figure 11 is made into wire helical form, forms the amplification view and the enlarged perspective of the supporting member of a plurality of hole portion in the crack betwixt.

Figure 12 is the perspective view of amplification of the bondedfibre fabric of second kind of form of implementation.

Figure 13 is the perspective view of amplification of the bondedfibre fabric of the third form of implementation.

Figure 14 is the perspective view that the elongate member equally spaced is configured in side by side the supporting member on the netted supporting member with wavy fluctuating.

Figure 15 is the enlarged perspective of the bondedfibre fabric of the 4th kind of form of implementation.

Figure 16 is the enlarged perspective of the bondedfibre fabric of the 5th kind of form of implementation.

Figure 17 is the enlarged perspective that offers the tabular supporting member of a plurality of elliptoid peristomes.

Figure 18 be illustrated in fiber web with following side bearing under the state on the tabular supporting member of Figure 17, side gas jet is upward made the diagram of state of the bondedfibre fabric of the 5th kind of form of implementation shown in Figure 16.

Figure 19 is the enlarged perspective of the bondedfibre fabric of the 6th kind of form of implementation.

Figure 20 is used for perspective view under the situation of surface patch of sanitary napkin with bondedfibre fabric according to the present invention.

Figure 21 is used for perspective view under the situation of surface patch of diaper with bondedfibre fabric according to the present invention.

Figure 22 is as the perspective view under the situation of the intermediate use of absorbent commodity with bondedfibre fabric according to the present invention.

Figure 23 is as the perspective view under the situation of the most external use of absorbent commodity with bondedfibre fabric according to the present invention.

The specific embodiment

Below, implement optimised form of the present invention with reference to description of drawings.

Figure 1A is the plane of the bondedfibre fabric of first kind of form of implementation.Figure 1B is the ground plan of the bondedfibre fabric of first kind of form of implementation.Fig. 2 is the enlarged perspective of the regional Y among Fig. 1.Fig. 3 A is the plane that the elongate member equally spaced is configured in side by side the supporting member on the netted supporting member.Fig. 3 B is the perspective view that the elongate member equally spaced is configured in side by side the supporting member on the netted supporting member.Fig. 4 A is the plane of the netted supporting member of Fig. 3.Fig. 4 B is the perspective view of the netted supporting member of Fig. 3.Fig. 5 is illustrated in fiber web by under the state of side below the supporting members supports of Fig. 3, upward the diagram of the state of the bondedfibre fabric of first kind of form of implementation of side gas jet, shop drawings 1.Fig. 6 is the side view of manufacturing installation of the bondedfibre fabric of first kind of form of implementation of explanation.Fig. 7 is the plane of manufacturing installation of the bondedfibre fabric of key diagram 6.Fig. 8 is the enlarged perspective of the regional Z among Fig. 6.Fig. 9 is the ground plan of the ejection portion among Fig. 8.Figure 10 A is the plane that forms the tabular supporting member of a plurality of elliptoid openings.Figure 10 B is the perspective view that forms the tabular supporting member of a plurality of elliptoid openings.Figure 11 is made into wire helical form, forms the amplification view and the enlarged perspective of the supporting member of a plurality of hole portion in the crack betwixt.

Figure 12 is the enlarged perspective of the bondedfibre fabric of second kind of form of implementation.Figure 13 is the enlarged perspective of the bondedfibre fabric of the third form of implementation.Figure 14 is the perspective view that the elongate member equally spaced is configured in side by side the supporting member on the netted supporting member with wavy fluctuating.Figure 15 is the enlarged perspective of the bondedfibre fabric of the 4th kind of form of implementation.Figure 16 is the enlarged perspective of the bondedfibre fabric of the 5th kind of form of implementation.Figure 17 is the enlarged perspective that offers the tabular supporting member of a plurality of elliptoid peristomes.Figure 18 be illustrated in fiber web with following side bearing under the state on the tabular supporting member of Figure 17, in the above the side gas jet, make the diagram of state of the bondedfibre fabric of the 5th kind of form of implementation shown in Figure 16.Figure 19 is the enlarged perspective of the bondedfibre fabric of the 6th kind of form of implementation.

Figure 20 is used for perspective view under the situation of surface patch of sanitary napkin with bondedfibre fabric according to the present invention.Figure 21 is used for perspective view under the situation of surface patch of diaper with bondedfibre fabric according to the present invention.Figure 22 is as the perspective view under the situation of the intermediate use of absorbent commodity with bondedfibre fabric according to the present invention.Figure 23 is as the perspective view under the situation of the most external use of absorbent commodity with bondedfibre fabric according to the present invention.

Bondedfibre fabric of the present invention is the bondedfibre fabric that is formed with the peristome of regulation at least.

First kind of form of implementation

Below, utilize Fig. 1 to Figure 11 that first kind of form of implementation of bondedfibre fabric of the present invention is described.

[1.1] shape

As Figure 1A, Figure 1B, Fig. 2 or shown in Figure 5, be the bondedfibre fabric that is formed with a plurality ofperistomes 3 according to thebondedfibre fabric 120 of this form of implementation.In detail,bondedfibre fabric 120 is that the one side side at thisbondedfibre fabric 120 roughly equally spaced forms a plurality ofslot parts 1 side by side along the length direction as first direction, simultaneously, forms the bondedfibre fabric of a plurality ofperistomes 3 at thisslot part 1 place.Each of described a plurality ofperistome 3 forms circular or ellipse roughly roughly.Here, in this form of implementation,slot part 1 roughly uniformly-spaced forms side by side, still, is not limited thereto, and for example also can separate different intervals and form, and also can form according to the mode ofslot part 1 interval variation each other.

In addition, between each of a plurality ofslot parts 1, form a plurality of convex shapedparts 2 respectively.Convex shapedpart 2 is the same withslot part 1, with spacing parallel arranging ground formation about equally.The height (thickness direction) of the convexshaped part 2 in thebondedfibre fabric 120 of this form of implementation still, also can form according to the different mode of height that makes the convexshaped part 2 that adjoins each other about equally.For example, the height of convex shapedpart 2 can be adjusted in the interval of the described ejiction opening 913 in back by adjusting the fluid that ejection mainly forms by gas.For example,, can reduce the height of convex shapedpart 2 by dwindling the interval of ejiction opening 913, otherwise, by enlarging the interval of ejiction opening 913, can increase the height of convex shaped part 2.And then, form the interval of ejiction opening 913 by the mode that replaces with narrow interval and wide interval, also can alternately form highly different convex shaped part 2.In addition, like this, if partly change the height of convex shapedpart 2, owing to the area with contact skin reduces, so, have the advantage that can alleviate the burden that gives skin.

In addition, in this form of implementation, the height of the thickness direction of the convexshaped part 2 in thebondedfibre fabric 120 in thisbondedfibre fabric 120 is to form thanslot part 1 high mode.Specifically, can list is 0.3 to 15mm, is preferably 0.5 to 5mm.In addition, convexshaped part 2 for example can be preferably 1.0 to 10mm for 0.5 to 30mm as the length on the width of horizontal direction.In addition, it is 0.5 to 30mm that convexshaped part 2 distance each other that clipsslot part 1 adjacency can list, and is preferably 3 to 10mm.

In addition,slot part 1 at the height of the thickness direction ofbondedfibre fabric 120 to form than convex shapedpart 2 low modes.Specifically, for convexshaped part 2 at below 90% of the height on the thickness direction, be preferably 1 to 50%, more preferably be 0 to 20% height.Here, the height of thickness direction is that 0% this place of expression is aperistome 3.

The length of the width ofslot part 1 for example can be 0.1 to 30mm, is preferably 0.5 to 10mm.Clip convexshaped part 2adjacent slot part 1 distances each other and can be 0.5 to 20mm, be preferably 3 to 10mm.

By such design, for example, using under the situation of thisbondedfibre fabric 120 as the surface patch of absorbent commodity, be suitable for when the fluid drainage of a large amount of regulations is come out, also being difficult to from the teeth outwards theslot part 1 that permeates widely even can form.In addition, even convexshaped part 2 becomes the routed state that collapses when applying superfluous external pressure, the space that also easy maintenance is formed byslot part 1 is even under the situation that applies the liquid of draining regulation under the state of external pressure, also be difficult to permeate from the teeth outwards widely.And then, even the liquid of the regulation in once absorbing absorber etc. externally returns under the pressure under the situation of coming, since concavo-convex by on the surface of thisbondedfibre fabric 120, forming, few with the area of contact skin, so, also be difficult to be attached on the skin in large area once more.

Here, the assay method of the height ofslot part 1 or convexshaped part 2 or pitch, width, as described below.For example,bondedfibre fabric 120 is positioned on the workbench under uninflated state, utilizes microscope to measure from the cross-section photograph or the cross-sectional image ofbondedfibre fabric 120.

When measuring height (length of thickness direction), from its lowermost position (being the workbench surface) ofbondedfibre fabric 120 to towards the convexshaped part 2 of top and slotpart 1 extreme higher position separately as highly measuring.

In addition, as the pitch of convex shapedpart 2, measure the center distance each other of the convexshaped part 2 that adjoins each other.Similarly, as the pitch ofslot part 1, measure the center distance each other of theslot part 1 that adjoins each other.

When measuring the width of convex shapedpart 2, measure from the upper/lower positions (that is, the workbench surface) ofbondedfibre fabric 120 to Breadth Maximum towards the bottom surface of the convexshaped part 2 of top, also measureslot part 1 with same method.

Here, the cross sectional shape for convexshaped part 2 does not have specific restriction.For example, can list dome-shaped, trapezoidal, triangle, Ω shape, quadrangle etc.Touch feeling good of skin in order to make, near the end face of convex shapedpart 2 and side is preferably curved surface.In addition,, also can keep the space that forms byslot part 1, preferably make bottom surface from convex shapedpart 2 to the end face narrowed width even under the situation of external pressure with convexshaped part 2 conquassation.The end face of convex shapedpart 2 is preferably curves such as dome-shaped (curved surface) roughly.

In addition, as Figure 1A, Figure 1B and shown in Figure 2, thebondedfibre fabric 120 of this form of implementation is the bondedfibre fabric that is formed with a plurality ofperistomes 3 on slot part 1.The shape of each of described a plurality ofperistome 3 forms circle or substantially elliptical roughly.And, described a plurality of peristomes separately between so thatform connecting portion 4 with mode that the convexshaped part 2 of thisslot part 1 adjacency interconnects mutually.In other words, a plurality of connectingportions 4 that form with the interval of regulation with convexshaped part 2 and with it the convexshaped part 2 of adjacency couple together.

In this form of implementation, withinterval formation peristome 3 about equally, still, the present invention is not limited thereto, also can form with different intervals.

Eachperistome 3 is preferably 0.5 to 4mm can for example being 0.1 to 5mm as the length on the length direction of first direction and as the length of the width of second direction.In addition, the pitch that clips theperistome 3 that connectingportion 4 adjoins each other can for example be 0.5 to 30mm, is preferably 1 to 10mm.

Height towards the thickness direction ofbondedfibre fabric 120 in the connectingportion 4 is equal to or less than the height of convex shapedpart 2 towards the thickness direction ofbondedfibre fabric 120, be preferably convex shapedpart 2 towards 20% to 100% of the height of the thickness direction ofbondedfibre fabric 120, more preferably 40% to 70%.

In addition, the length of each connectingportion 4 on the length direction of thisbondedfibre fabric 120 and length on width can for example be 0.1 to 5mm, are preferably 0.5 to 4mm.In addition, clip pitch between the summit of the connectingportion 4 thatperistome 3 adjoins each other and can for example be 0.5, be preferably 1 to 10mm to 30mm.

In addition, the cross sectional shape of connectingportion 4 on the length direction of this bondedfibre fabric is quadrangle roughly.In addition, the cross sectional shape on the length direction of connectingportion 4 is not limited to quadrangle, also can be domeshape, trapezoidal, triangle, Ω shape etc., does not have specific restriction.Expansion for the liquid of the regulation that is suppressed atslot part 1 place is preferably roughly quadrangle.In addition, contact not with skin etc. in order to depress connectingportion 4 at surplus outer that administration of human is with foreign body sensation, the end face of this connectingportion 4 is preferably plane or curved surface.

[1.2] fiber orientation

As shown in Figure 2, thisbondedfibre fabric 120 is formed on the different respectively zone of containing ratio of the machine-direction oriented fiber that is orientated on the length direction as first direction.In other words, be formed on the different respectively zone of containing ratio of the horizontal orientation fiber that is orientated on the width as second direction.The zone that each are different,central portion 9 that for example, can list thesidepiece 8 ofslot part 1, convexshaped part 2, is clipped byadjacent sidepiece 8 etc.

Here, so-calledfiber 101 is orientated at first direction (longitudinal direction), refer tofiber 101 with respect to as first direction, be the longitudinal direction of the regulation of the direction (MD direction) bondedfibre fabric or fiber web sent via the machinery of making bondedfibre fabric here, be orientated to the scope of+45 degree from-45 degree, in addition, will be called machine-direction oriented fiber along the fiber of first direction orientation.In addition,fiber 101 is along the orientation of second direction (horizontal direction in the bondedfibre fabric), refer tofiber 101 with respect to second direction, here for as with the width of the regulation of the bondedfibre fabric of the direction (CD direction) of MD direction quadrature, be orientated to the scope of+45 degree from-45 degree, in addition, will be called the horizontal orientation fiber along the fiber of second direction orientation.

Sidepiece 8 is the zones that are equivalent to the both sides of convex shapedpart 2, forms in the many modes of fiber along the direction orientation of the length direction of this convexshaped part 2 at thefiber 101 at thesesidepiece 8 places.For example, thefiber 101 atsidepiece 8 places is compared with the orientation offiber 101 in the central portion 9 (zones between the both sides 8) of this convexshaped part 2, and Qu Xiang fiber is many along its length.For example, be 55% to 100% at the containing ratio of the machine-direction oriented fiber atsidepiece 8 places, more preferably 60% to 100%.Be lower than at the containing ratio of machine-direction oriented fiber under 55% the situation, when making bondedfibre fabric, pulled by device by bondedfibre fabric, thissidepiece 8 is elongated sometimes.And then, be elongated bysidepiece 8, when bondedfibre fabric was pulled by device, the describedcentral portion 9 inslot part 1 or back can be elongated equally sometimes.

Central portion 9 is the zones that become between thesidepiece 8 of the both sides in the convexshaped part 2, is the containing ratio zone lower thansidepiece 8 of machine-direction oriented fiber.Thiscentral portion 9 preferably moderately mixes machine-direction oriented fiber and horizontal orientation fiber.

For example, lower more than 10% at the containing ratio of the machine-direction oriented fiber atcentral portion 9 places than the containing ratio of the machine-direction oriented fiber atsidepiece 8 places, higher more than 10% than the containing ratio of the machine-direction oriented fiber at 11 places, bottom of slot part 1.Specifically, the containing ratio of machine-direction oriented fiber is preferably in 40% to 80% scope.

Slotpart 1 is when being formed by the mode of direct injection with the fluid (for example hot blast) that mainly is made of gas, forms the zone ofperistome 3 and connecting portion 4.When the fluid that mainly is made of gas was injected, recessed along thickness direction by the part of the fluid jet that mainly is made of gas, simultaneously, at injected part place, Qu Xiang fiber 101 (machine-direction oriented fiber) was blown tosidepiece 8 sides along its length.In addition, by the injected fluid that mainly constitutes by gas and/or the stuffiness portion that is blown to the supporting member of describing later 220, the altered fluid that mainly constitutes of its flow direction, the fiber 101 (horizontal orientation fiber) of broad ways orientation is sprayed to connectingportion 4 sides by gas.Like this, the direction that thefiber 101 at connectingportion 4 places ofslot part 1 intersects along the length direction with thisslot part 1 specifically, is orientated along width as a whole.Thereby, be orientated along opening shape at thefiber 101 of the peripheral region ofperistome 3.

Thereby in thisbondedfibre fabric 120, the containing ratio of the machine-direction oriented fiber of the connectingportion 4 ofslot part 1 is minimum.In other words, the containing ratio of connectingportion 4 horizontal orientation fibers is the highest.Specifically, the containing ratio of horizontal orientation fiber is 55% to 100%, is preferably 60% to 100%.Be lower than at the containing ratio of horizontal orientation fiber under 55% the situation, as hereinafter described, because the weight per unit area ofslot part 1 is low, so, be difficult to improve the intensity of bondedfibre fabric on width.Like this, for example, use at surface patch under the situation of thisbondedfibre fabric 120 as absorbent commodity, in using the process of this absorbent commodity because and the friction of health, can on width, produce longitude and latitude and slide, perhaps produce damaged danger.

デ ジ タ Le マ イ Network ロ ス コ-プ (digital microscope) VHX-100 that the mensuration of fiber orientation utilizes the キ of Co., Ltd.-エ Application ス to make carries out, and carries out with method described below.(1) sample is placed on the observation platform according to the mode that its length direction is in correct direction.(2) fiber that will appear at is brokenly nearby removed, and the focus of lens is overlapped with the most close preceding fiber of sample.(3) set the photography degree of depth (depth), on the picture of PC, make the 3D rendering of sample.Secondly, (4) convert 3D rendering to the 2D image, and draw on picture length direction a plurality of parallel lines of five equilibrium rightly in measurement range (5).(6) draw parallel lines and sectionalization each unit in, observing fiber orientation is first direction (length direction) or second direction (width), mensuration is towards the ribbon number of all directions.Then, (7) by calculating with respect to for the whole ribbons in the setting range, towards the ratio of the ribbon number of the fiber orientation of first direction (length direction), and, measure, calculate towards the ratio of the ribbon number of the fiber orientation of second direction (width).

[1.3] density of fiber

As shown in Figure 2, convexshaped part 2 is adjusted, made its average fiber density be higher than the average fiber density of slot part 1.The fibre density of convex shapedpart 2 can utilize mainly various conditions such as the amount, tension force of the fluid (for example, hot blast) that is made of gas to adjust arbitrarily.

Fibre density at convexshaped part 2 places, for example, can be for 0.005 to 0.20g/cm³, be preferably 0.007 to 0.07g/cm³Fibre density at this convexshaped part 2 is lower than 0.005g/cm³Situation under, not only because the own wt or the external pressure of the liquid that contains of this convexshaped part 2, convexshaped part 2 collapses routed easily, and under the situation of pressurization, once absorbed liquid returns sometimes easily.In addition, the fibre density at convexshaped part 2 is higher than 0.20g/cm³Situation under, the liquid that is brought by this convexshaped part 2 is difficult to move downwards, liquid holdup gives the sensation of wearer's humidity sometimes at these convexshaped part 2 places.

Slotpart 1 is adjusted into average fiber density is lower than convex shaped part 2.The average fiber density of the integral body of thisslot part 1 particularly, for example, can be for 0.002 to 0.18g/cm³, be preferably 0.005 to 0.05g/cm³Ensemble average fibre density atslot part 1 is lower than 0.002g/cm³The time, for example, thisbondedfibre fabric 120 being used under the situation of absorbent commodity etc., thisbondedfibre fabric 120 is damaged easily sometimes.In addition, the average fiber density in the integral body ofslot part 1 is higher than 0.18g/cm³The time, because liquid is difficult to move,, might give the sensation of user's humidity downwards so be trapped in the bottom of this slot part 1.In addition, can utilize mainly various conditions such as the amount of the fluid (for example, hot blast) that constitutes by gas or tension force to adjust the average fiber density of the bottom ofslot part 1 arbitrarily.

In addition, for example can be for 0.005 to 0.20g/cm in the fibre density of the connectingportion 4 atslot part 1 place³, be preferably 0.007 to 0.10g/cm³Fibre density at connectingportion 4 is lower than 0.005g/cm³The time, under the external pressure, the convexshaped part 2 that apply surplus collapsed routed situation, this connectingportion 4 can collapse routed sometimes equally.

On the other hand, the fibre density at connectingportion 4 is higher than 0.20g/cm³The time, the liquid that falls into the regulation in theslot part 1 can be trapped in connectingportion 4, be applied on thisbondedfibre fabric 120 in the external pressure of surplus, with situation that skin directly contacts under, can give the sensation of humidity.

In addition, thisbondedfibre fabric 120, from as the spatial area rate of measuring in the face side one side side, thatform slot part 1 and convexshaped part 2 of the thickness direction of thisbondedfibre fabric 120, than from low as the spatial area rate of measuring with the another side side of the face of the face opposition side offormation slot part 1 on the thickness direction of thisbondedfibre fabric 120 and convexshaped part 2.

Thefiber web 100 that is transported on the supportingmember 220 of Miao Shuing in the back, because gravity, the tendency that the face side shifting thatfiber 101 the face oriented and fluid jet that mainly is made of gas is opposite, the distance between the fiber at the position of the face side of close this opposition side narrow down.On the other hand, along with the face side near the fluid jet that mainly constitutes by gas, the tendency that has the distance between the fiber to broaden.

And then by spraying the fluid that mainly is made of gas, thefiber 101 of close supportingmember 220 sides leans against on the supportingmember 220, towards the in-plane of supporting member 220.Whereby, the distance between the fiber further narrows down, and fiber is intensive easily each other.And, in this state, by heat treatments such as baking oven processing, the mutual heat bonding of fiber, the free degree step-down offiber 101, the spatial area rate step-down between the fiber of the another side side in thebondedfibre fabric 120.

On the other hand, along with from the face of supportingmember 220 sides near the face side of spraying mainly the fluid that constitutes by gas, can be between the fiber by undue conquassation, in addition, at convexshaped part 2 places, run into supportingmember 220 and rebounded by the injected fluid that mainly is made of gas,fiber 101 partly becomes vertical orientated with respect to this supporting member 220.In this state, by with the mutual heat bonding of fiber, the spatial area rate between the fiber increases.

Here, so-called spatial area rate refers to the spatial area that there the is not fiber ratio with respect to the gross area.In addition, the assay method of spatial area rate is as described below.

Sensing equipment uses デ ジ タ Le マ イ Network ロ ス コ-プ (digital microscope) VHX-100 that utilizes the キ of Co., Ltd.-エ Application ス to make.At first, (1) on observation platform, the mode that becomes longitudinal direction with the direction alongslot part 1 and convexshaped part 2 places sample on the sensing equipment, and (2) at place, the summit of convex shapedpart 2, carries out following mensuration respectively from the outstanding face of convex shapedpart 2 with the face of the outstanding face opposition side of convex shapedpart 2.

(3) suitably set the power of a lens of sensing equipment and the magnifying power on the personal computer picture, with the fiber (removing the irregular fiber that appears at nearby) of close front side of the sample in focus of lens.Then, (4) suitably set the photography degree of depth (depth), make the 3D rendering of sample.

(5) 3D rendering is converted to the 2D image,, specify in the space between the fiber in this scope the volume complanation of setting.And then (6) carry out binarization (binaryzation) processing for the 2D image, and the position that fiber is existed is white, and the non-existent position of fiber is a black.Then, (7) make the non-existent position of fiber be white color inversion, measure the area of whitening etc.

Here, in this document, magnifying power is 300 times, and the photography degree of depth is 220 μ m (per 20 μ m photography is once photographed 11 times altogether), carries out the mensuration of n=10, averages.

In addition, computer memory area occupation ratio as follows.

Spatial area rate (%)=(the space gross area (mm²Area (the mm of)/measurement range²)) * 100

Here, the space gross area can be calculated by (multiplication factor during the space gross area during mensuration/mensuration), and in addition, the measurement range area can be calculated by (multiplication factor the during area of the measurement range during mensuration/mensuration).

Because the spatial area rate is high more, the distance between the fiber is big more, and the surface that is equivalent to bondedfibre fabric is thick more, so fiber moves easily, free degree height.And then for the bondedfibre fabric that partly interfibrous distance is enlarged by opening processing etc., by improving the spatial area in each space, on the face of the fluid jet that the whole quilt in bondedfibre fabric mainly is made of gas, the distance between the fiber becomes big.Therefore, for example, this bondedfibre fabric is being used under the situation such as absorbent commodity, the resistance the when liquid that can wholely reduce regulation such as excreta sees through thisbondedfibre fabric 120 makes that liquid is easier to be moved to absorber etc.

Here, the spatial area in so-called each space, the gross area that refers to the non-existent space of fiber is with respect to the ratio of the non-existent space of fiber number within the limits prescribed.Spatial area can calculate with following computing formula.

Spatial area (mm²/)=(the space gross area (mm²)/space number (individual))

The spatial area rate that the face of the side that this convexshaped part 2 from convex shapedpart 2 is outstanding is measured for example can be 5% to 100% with difference from the spatial area rate measured with the face of the outstanding face opposition side of this convexshaped part 2, be preferably 5% to 80%, more preferably 15% to 40%.

In addition, the spatial area rate of measuring from the face of the outstanding side of convex shapedpart 2 is 50% to 100%, is preferably 50% to 90%, more preferably 50% to 80%.

And then, for example can be 3000 μ m from the spatial area in each space that the face of the outstanding side of convex shapedpart 2 is measured²More than, be preferably 3000 to 30000 μ m², 5000 to 20000 μ m more preferably²

[1.4] weight per unit area

The average weight per unit area concrete example of the integral body ofbondedfibre fabric 120 is as can be for 10 to 200g/m², be preferably 20 to 100g/m²For example, under the situation of the surface patch that thisbondedfibre fabric 120 for example is used for absorbent commodity, when average weight per unit area is lower than 10g/m²The time, in use damaged easily sometimes.In addition, the average weight per unit area at thisbondedfibre fabric 120 is higher than 200g/m²Situation under, be difficult to make smoothly the liquid that brings to move sometimes downwards.

Convex shapedpart 2 is adjusted in the high mode of weight per unit area of comparingfiber 101 with slot part 1.Here, the weight per unit area of thecentral portion 9 of convex shapedpart 2 for example, can be 15 to 250g/m², be preferably 20 to 120g/m²Weight per unit area at thiscentral portion 9 is lower than 15g/m²Situation under owing to be included in the own wt or the external pressure of the liquid in thiscentral portion 9,central portion 9 is not only collapsed routed easily, and the liquid that was once absorbing sometimes returns adding to depress easily.In addition, at the weight per unit area ofcentral portion 9 greater than 250g/m²Situation under, the liquid that is difficult to make thiscentral portion 9 to bring moves downwards, liquid holdup sometimes gives the user sensation with humidity at thiscentral portion 9.

And then, for the weight per unit area of thesidepiece 8 in this convexshaped part 2, can adjust arbitrarily by the amount of the fluid (for example, hot blast) that mainly constitutes by gas or the various conditions such as tension force that are applied on the bondedfibre fabric.Specifically, for example can be for 20 to 280g/m at the weight per unit area at thesesidepiece 8 places², be preferably 25 to 150g/m²Weight per unit area at thissidepiece 8 is lower than 20g/m²Situation under, sometimes because the tensile force of horizontal direction can elongate sidepiece 8.In addition, the weight per unit area at thesesidepiece 8 places is higher than 280g/m²Situation under, the liquid that thissidepiece 8 brings is difficult to downwards to move, and is trapped insidepiece 8, might give the sensation of wearer's humidity.

Can adjust the average weight per unit area ofslot part 1, make and compare that the average weight per unit area offiber 101 diminishes with convex shaped part 2.In addition, adjust the average weight per unit area atslot part 1 place, make it lower than the average weight per unit area of thisbondedfibre fabric 120 integral body.For example, can be for 3 to 150g/m at the average weight per unit area at 11 places, bottom ofslot part 1², be preferably 5 to 80g/m²Average weight per unit area at 11 places, bottom of thisslot part 1 is lower than 3g/m²Situation under, in use easily damaged sometimes.In addition, the average weight per unit area at 11 places, bottom of thisslot part 1 is higher than 150g/m²Situation under, the liquid that thisslot part 1 brings is difficult to downwards (another side side) and moves, liquid holdup might give the sensation of wearer's humidity at thisslot part 1 place.

And then, adjust the average weight per unit area ofslot part 1 integral body lower than the average weight per unit area of convex shapedpart 2 integral body.Specifically, the average weight per unit area ofslot part 1 integral body for the average weight per unit area of convex shapedpart 2 below 90%, preferably 3% to 90%, particularly preferably in 3% to 70%.Be higher than with respect to the average weight per unit area of convex shapedpart 2 at the average weight per unit area ofslot part 1 integral body under 90% the situation, fall into the resistance of the liquid ofslot part 1 when the below of bondedfibre fabric 120 (another side side) is mobile and increase, liquid can overflow fromslot part 1 sometimes.In addition, be lower than with respect to the weight per unit area of convex shapedpart 2 at the weight per unit area of the bottom ofslot part 1 under 3% the situation, for example, be used at thisbondedfibre fabric 120 under the situation of surface patch of absorbent commodity, in the process that absorbent commodity uses, surface patch is damaged easily sometimes.

In addition, the weight per unit area of connectingportion 4 for example can be 5 to 200g/m², be preferably 10 to 100g/m²Weight per unit area at this connectingportion 4 is lower than 5g/m²Situation under, collapse under the routed situation applying superfluous external pressure, convexshaped part 1, under situation about having, this connectingportion 4 collapses routed too.Weight per unit area at connectingportion 4 is higher than 200g/m²Situation under, the liquid that falls into the regulation ofslot part 1 sometimes can be trapped in connectingportion 4, be applied on thisbondedfibre fabric 120 in the external pressure of surplus, directly with the situation of contact skin under, can give the sensation of humidity.

[1.5] other

For example, be used for for liquid-absorbent that will regulation or make under the situation that the liquid of regulation sees through at the bondedfibre fabric with this form of implementation, see through forslot part 1 makes liquid, convexshaped part 2 is difficult to 3, except that liquid, also can see through solid.

Owing onslot part 1, be formed with a plurality ofperistomes 3, so be suitable for making liquid and solid to see through.And then, becausefiber 101 broad ways of the bottom ofslot part 1 orientation, broaden so can prevent that liquid from too flowing to the length direction of slot part 1.Though the weight per unit area ofslot part 1 is low, owing to make the width orientation (CD orientation) offiber 101 at thisslot part 1, so the intensity on the width of bondedfibre fabric (CD intensity) increases.

Though adjust the weight per unit area of convex shapedpart 2 higher, because the increase of ribbon number, so the bonding increase of counting keeps loose structure.

In convexshaped part 2,, form the sidepiece of adjusting weight per unit area and fibre density higher 8 thancentral portion 9 in the mode ofcentral portion 9 of supporting convex shaped part 2.That is,sidepiece 8, because the major part offiber 101 alongst is orientated, so the distance between the fiber shortens, thereby fibre density increases, rigidity also uprises.Thereby, keep convexshaped parts 2 all by thissidepiece 8, can prevent that convexshaped part 2 is owing to external pressure etc. is collapsed routed.

In addition, inslot part 1, the containing ratio of the horizontal orientation fiber of per unit area is thancentral portion 9 height, and atsidepiece 8, the containing ratio of the machine-direction oriented fiber of per unit area is thancentral portion 9 height.And, atcentral portion 9, contain thefiber 101 that more is orientated along thickness direction thanslot part 1 orsidepiece 8 places.Thereby atcentral portion 9, for example, even owing to apply the load of thickness direction, the thickness of convex shapedpart 2 reduces, and under the situation about discharging of will load, the rigidity by thefiber 101 that is orientated along this thickness direction also returns to original height easily.That is, be a kind of restorative high bondedfibre fabric that compresses.

[1.6] manufacture method

By Fig. 6 to Figure 11, the method for thebondedfibre fabric 120 of making this form of implementation is described below.At first, withfiber web 100 mountings to upper face side as the supportingmember 220 of aeration supporting member.In other words, utilize supportingmember 220 from following side bearingfiber web 100.

Then, the supportingmember 220 of the state that is in thisfiber web 100 of supporting is moved along prescribed direction, the upper surface side by thefiber web 100 that moves from this is gas jet continuously, can make thebondedfibre fabric 120 of this form of implementation.

As Fig. 6, shown in Figure 7, the bondedfibrefabric manufacturing installation 90 of making thebondedfibre fabric 120 of this form of implementation comprises:aeration supporting member 200, and thisaeration supporting member 200 is from thefiber web 100 of lower side (another side side) supporting as fiber assembly; As theejection portion 910 of injection equipment and not shown air feed part, the fluid of described injection equipment from mainly constituting tofiber web 100 injections as fiber assembly of supporting from lower side (another side side) by gas byaeration supporting member 200 as the upper side thefiber web 100 of this fiber assembly (one side side); As theconveyer 930 of travel mechanism, described travel mechanism makes thefiber web 100 as fiber assembly move to prescribed direction F.

Aeration supportingmember 200 for example is the supporting member that comprises with the lower part: the fluid that mainly constitutes by gas that ventilating part, described ventilating part can spray the upper face side fromfiber web 100 to as with disposedaeration supporting member 200 in the downside of the opposite side of a side offiber web 100 ventilate; And stuffiness portion, the fluid that mainly is made of gas that the upper face side of described stuffiness portion fromfiber web 100 sprays can not be ventilated to the downside in theaeration supporting member 200, and thefiber 101 that constitutesfiber web 100 can not move to the opposition side in theaeration supporting member 200.

As theaeration supporting member 200 that in this form of implementation, uses, for example, as shown in Figure 3, can list stuffiness portion and be configured in member on the reticular component of regulation with the pattern of regulation, perhaps, as shown in figure 10, on the tabular component of stuffiness, be formed with the member etc. of a plurality of regulations hole portion.

As the member on the reticular component that stuffiness portion is configured in this regulation with the pattern of stipulating, for example, can list as shown in Figure 4 at the supporting member 220 (Fig. 3) of the first-class spacing parallel arranging of face ground of netted supportingmember 210 configuration as theelongate member 225 of stuffiness portion.Here, as other form of implementation, also can list and suitably change as the shape of theelongate member 225 of stuffiness portion or the member of configuration.Stuffiness portion on a face that elongatemember 225 is configured in netted supportingmember 210 shown in Figure 3 the situation, also can pass through landfill (for example, utilizing slicken solder, resin etc.) and form as the reticulated cell of ventilating part.

As the member of the hole portion that on this stuffiness tabular component, forms a plurality of regulations, for example, can list the tabular supportingmember 230 of a plurality ofelliptoid hole portions 233 as ventilating part of formation shown in Figure 10.Here, as another form of implementation, can list the mode of shape, size and the configuration of suitably adjusting hole portion 233.For example, as shape of theboard 235 of stuffiness portion etc., can be used as another form of implementation by suitable adjustment.

Here, the venting quality in becoming the zone of ventilating part, for example, can be for 10000 to 60000cc/cm²Min is preferably 20000 to 50000cc/cm²Min.But, in the aeration supporting member, for example, under the situation of digging through formation ventilating parts such as metallic plate, owing to there is not mainly the fluid that constitutes by gas resistance to this plate portion, so, there is the situation that reaches the above venting quality of the above-mentioned numerical value put down in writing above.

In bondedfibrefabric manufacturing installation 90, one side forms bondedfibrefabric 120 withfiber web 100 from the mobile successively one side of the direction of regulation.This travel mechanism makes thefiber web 100 as fiber assembly that is in by under the state of a face side bearing move to the direction of regulation by above-mentioned aeration supporting member 200.Specifically, thefiber web 100 under the state that is in the injected fluid that mainly is made of gas is moved to prescribed direction F.As travel mechanism, for example, can list conveyer shown in Figure 6 930.Conveyer 930 comprises: theaeration band portion 939 of aeration, described aeration band portion form the ring-type of the horizontal length of mountingaeration supporting member 200; Rotating part 931,933, described rotating part be positioned at theaeration band portion 939 that forms laterally long ring-type the inboard, be configured in length direction two ends, make of the direction rotation of theaeration band portion 939 of this ring-type along regulation.

As mentioned above,conveyer 930 makes theaeration supporting member 200 that is under the state of following side bearingfiber web 100 move along prescribed direction F.Specifically, as shown in Figure 6,fiber web 100 is moved in the mode of the downside by ejection portion 910.And then, makefiber web 100 to move by mode as the inside of theheater portion 950 of the two sides opening of heating arrangements.

As shown in Figure 8, injection equipment comprises not shown air feed part and ejection portion 910.Not shown air feed part is connected in theejection portion 910 viasnorkel 920.Snorkel 920 can be connected to the upside ofejection portion 910 with ventilating.As shown in Figure 9, the interval with regulation forms a plurality of ejiction openings 913 inejection portion 910.

From not shown air feed part via the supplied gas gas ofejection portion 910 ofsnorkel 920, from being formed on a plurality of ejiction openings 913 ejections in the ejection portion 910.Be ejected into continuously by upper face side from the gas of a plurality of ejiction opening 913 ejections from thefiber web 100 of following side bearing on aeration supporting member 200.Specifically, be ejected into continuously from the gas of a plurality of ejiction opening 913 ejiction openings and be in the upper face side that is transferred thefiber web 100 ofdevice 930 under the state that the direction F of regulation moves.

Below ejection portion 910,915 pairs of the suction unit of downside that are configured inaeration supporting member 200 are air-breathing from 910 ejections of ejection portion, gases etc. by aeration supporting member 200.Here, air-breathing by thissuction unit 915 can be to be adjacent to mode on theaeration supporting member 200 withfiber web 100 location.And then, by air-breathing, can further remain under the state of the slot part shapes such as (concavo-convex) that is shaped by air flow, inheater portion 950, carry.In addition, attract (air-breathing) injected fluid that mainly constitutes, can prevent that the fluid surplus that mainly is made of gas of running intoaeration supporting member 200 from rebounding, prevent the shape disorder offiber web 100 by gas by thissuction unit 915.

By the attraction that suctionunit 915 is carried out, its intensity reaches the degree that thefiber 101 in the zone of the fluid jet that will mainly be made of gas is forced on theaeration supporting member 200 and gets final product.

In addition, the air quantity by the fluid that mainly is made of gas that adjust to spray, temperature, introducing amount, the aeration of supporting member, the weight per unit area offiber web 100 etc. can make the shape of convex shapedpart 2,peristome 3 and connectingportion 4 etc. change.For example, almost impartial or attract under the many situations of the amount of the main fluid that is made of gas of (air-breathing) in the amount of the main fluid that is made of gas of the amount of the main fluid that is made of gas that makes injection and attraction (air-breathing), the rear side of the convexshaped part 2 in thebondedfibre fabric 120 forms in the mode along the shape of aeration supporting member 200.Thereby under the shape ofaeration supporting member 200 was smooth situation, the rear side of thisbondedfibre fabric 120 became general planar.

And then, introduce the fluid that mainly constitutes by downside by gas fromaeration supporting member 200, simultaneously be pushed to theseaeration supporting member 200 sides and simultaneously move owing to spray mainly the fiber in the zone of the fluid that constitutes by gas, so fiber concentrates on the supporting member side.In addition, at convexshaped part 2 places, the fluid collisionaeration supporting member 200 that mainly is made of gas by injected suitably rebounds, and becomes the state of pars fibrosa ground towards thickness direction.

Though from the temperature of the fluid that mainly is made of gas of each ejiction opening 913 ejections also can be normal temperature, but, for example, for the formability that makes slot part (concavo-convex), peristome good, this temperature can be adjusted to more than the softening point of the thermoplastic fibre at least that constitutes fiber assembly, preferably, adjust to fusing point+scope of 50 ℃ to-50 ℃ temperature in.When fiber softening, because the bounce step-down of fiber itself, so, the shape of utilizing maintenance fiber such as air flow to be arranged again easily is when further raising temperature, because fiber heat bonding each other begins, so, can more easily keep the shape of slot part (concavo-convex) etc.Thereby, under the state of the shape that keeps slot part (concavo-convex) etc., be easy to be transported in theheater 950.

As theheater portion 950 of heating arrangements, the both ends open on prescribed direction F.Thereby, be positioned in the fiber web 100 (bondedfibre fabric 120) that is transferred on theaeration supporting member 200 thatdevice 930 moves and in the heating space that is formed atheater portion 950 inside, move continuously with the holdup time of regulation.For example, contain under the situation of thermoplastic fibre in thefiber 101 that constitutes fiber web 100 (bondedfibre fabric 120), thebondedfibre fabric 115 that heating mutually combinesfiber 101 in thisheater portion 950 can pass.

According to the bondedfibre fabric of making, can suitably change aeration supporting member 200.For example, under the situation of thebondedfibre fabric 120 of making this form of implementation,, can use supportingmember 220 asaeration supporting member 200.

When making thebondedfibre fabric 120 of this form of implementation, under the situation of using supportingmember 220 shown in Figure 3, in the above side mounting supportingmember 220 thatfiber web 100 arranged along with the length direction ofelongate member 225 roughly the direction of quadrature move.Whereby, at the upper face side offiber web 100, along with form the roughly direction gas jet continuously of quadrature of elongate member 225.That is,slot part 1 along withelongate member 225 roughly the direction of quadrature form.And the peristome of describing later 3 is formed on the position that elongatemember 225 and slotpart 1 intersect.

As mentioned above,elongate member 225 is members of stuffiness, for example, can not ventilate to the lower side from the gas that upside sprays.In other words, be injected into its flow direction of gas and changing ofelongate member 225.

In addition,elongate member 225 does not make thefiber 101 in thefiber web 100 move to the lower side of supportingmember 220.

Therefore, constitute the moving offiber 101 offiber web 100, gas that sprays by the upper face side fromfiber web 100 and/or the gas that has changed flow direction when seeing throughfiber web 100, byelongate member 225 as injected gas carry out.

For example, the fiber in the zone of having sprayedgas 101 is moved to the zone with this zone adjacency.And, owing to move along the direction of stipulating in the zone of injected gas, so the result moves in the zone of the side in the zone continuous along the prescribed direction of gas injection.

Thereby, when formingslot part 1, move in thefiber 101 of the bottom inslot part 1 11 mode along the width orientation.In addition, form convex shapedpart 2 betweenslot part 1 and slotpart 1, the fibre density of the side portion in this convexshaped part 2 uprises, andfiber 101 alongst is orientated etc.

And then, as injected gas, in tofiber web 100 ventilations, changed the gas of flow direction byelongate member 225, make thefiber 101 that constitutesfiber web 100 to moving with above-mentioned different direction.

Owing to constitute netted supportingmember 210 andelongate member 225restriction fibers 101 side shifting below supportingmember 220 of supportingmember 220, on the direction above supportingmember 220 sofiber 101 moves.

In detail, the gas that is injected on theelongate member 225 flows along the direction change of this elongate member 225.Change the gas that flows like this, the zone is mobile towards periphery aboveelongate member 225 to make thetop fiber 101 that is configured in elongate member 225.Thereby, form regulation shaped aperture portion 3.In addition, adjust in orientation, density or the weight per unit area offiber 101 more than one or two.

In addition, in order to formbondedfibre fabric 120, also can use the supporting member different with above-mentioned supportingmember 220 with peristome 3.Utilize employed supporting member, can change the size ofslot part 1, convexshaped part 2,peristome 3 and connectingportion 4 or arrangement etc.For example, can use supporting member shown in Figure 11 270.

Supportingmember 270, for example, can be the regulation rugosity of arranging with respect to almostparallel ground wire 271, thewire 272 of other regulation rugosity alternately is wound into the aeration net that spiral that helically forms weaves in the mode with a plurality ofwire 271 mutual bridge joints.

Wire 271 and wire 27 in this supportingmember 270 become stuffiness portion.In addition, the part of being surrounded by thewire 271 in this supportingmember 270 andwire 272 becomes thehole portion 273 as ventilating part.

Under the situation of this supporting member, partly change by the rugosity that makes the method that inweaves or silk, the shape of silk, can venting quality be changed.For example, can usewire 271 for stainless circular wire,wire 272 for stainless flat filament, carry out the supportingmember 270 that the spiral braiding forms.

But, the venting quality of wire that becomesstuffiness portion 271 in this case and wire 272 (intersection point part particularly wiry), can be enumerated as with respect to as the venting quality athole portion 273 places of ventilating part below 90%, be preferably 0% to 50%, more preferably 0% to 20%.Here, so-called 0% refers to, and in fact mainly the fluid that is made of gas is airproof.

Using under the situation of supportingmember 270, for example, when the fluid jet that mainly constitutes by gas when thewire 271 at supportingmember 270 places is partly gone up with the intersection point ofwire 272, this is mainly partly changed its flow direction by the fluid that gas constitutes by this intersection point.Thereby, thefiber 101 that is bearing in this intersection point part is sprayed forwards, backwards,form peristome 3.

And, inslot part 1 by the zone of supporting outside the intersection point part or be positioned at zone above thehole portion 273, when being limited moving downwards, thesidepiece 8 of machine-direction oriented fiber in convex shapedpart 2 moves.And then, horizontal orientation fiber that intersection point by supportingmember 270 partly forms by making moved fromperistome 3,forms connecting portion 4.

Here, by adjusting temperature, amount or the intensity of the fluid that mainly constitutes by gas that sprays tofiber web 100, in addition, the translational speed of thefiber web 100 in the adjustment travel mechanism, adjustment tension force etc., promptly use same supporting member, also can makeperistome 3, slotpart 1, the form of convex shapedpart 2, weight per unit area, bondedfibre fabric that fibre density is different.In addition, be ejected into temperature, amount or the intensity of the fluid that mainly constitutes by gas on thefiber web 100 by adjustment, in addition, the translational speed of thefiber web 100 in the adjustment travel mechanism, adjustment tension force etc., even utilize different supporting members, also can makeperistome 3, slotpart 1, the form of convex shapedpart 2, weight per unit area, bondedfibre fabric that fibre density is identical.

Other form of implementation

Below, describe for another form of implementation in the bondedfibre fabric of the present invention.In addition, in the form of implementation below, do not have the part that specifies the same with first kind of form of implementation, label in the accompanying drawings also with first kind of form of implementation under similar circumstances, give identical label.

Below by Figure 12 to Figure 19 explanation six kinds of forms of implementation of second kind of form of implementation to the according to bondedfibre fabric of the present invention.Second kind of form of implementation is the form of implementation of the form different with the face of the face opposition side that forms convex shaped part.The third form of implementation is the variform form of implementation of bondedfibre fabric integral body.The 4th kind of different form of implementation of convex shaped part that form of implementation is a bondedfibre fabric.The 5th kind of form of implementation is the different form of implementation of slot part.The 6th kind of form of implementation is the different form of implementation of peristome.

[2.1] second kinds of forms of implementation

Utilize Figure 12 that second kind of form of implementation of bondedfibre fabric of the present invention is described below.

As shown in figure 12, thebondedfibre fabric 172 of this form of implementation, the form of face with the face opposition side that is formed withslot part 1 and convexshaped part 2 in thisbondedfibre fabric 172 is different from first kind of form of implementation.Be that the center describes with difference below with first kind of form of implementation.

[2.1.1] bondedfibre fabric

Thebondedfibre fabric 172 of this form of implementationforms slot part 1 and convexshaped part 2 in its one side top-cross side by side for ground.And in the another side side ofbondedfibre fabric 172, the zone that is positioned at the bottom surface of convex shapedpart 2 forms in side-prominent modes of giving prominence to this convex shaped part 2.In other words,bondedfibre fabric 172 is in the another side side of thisbondedfibre fabric 172, and the zone that is arranged on the bottom surface of convex shapedpart 2 of one side side is recessed, forms recess.And the zone that is positioned at the another side side on the bottom surface atslot part 1 place of one side side is outstanding to the direction opposite with the convexshaped part 2 of one side side, forms convex shaped part.

[2.1.2] manufacture method

Except that top described, the manufacture method of thebondedfibre fabric 172 of this form of implementation is identical with above-mentioned first kind of described method of form of implementation.In addition, the supporting member that uses when making thisbondedfibre fabric 172 can use supportingmember 220 or supportingmember 270 in above-mentioned first kind of form of implementation.

For thisbondedfibre fabric 172, under the state that fiber assembly is utilized supportingmember 220 or supportingmember 270 side bearing below it, spray the fluid that mainly constitutes by gas, simultaneously, from the below of supportingmember 220 or supportingmember 270, the fluid that mainly constitutes that attracts (air-breathing) to spray by gas.And, the amount of the fluid that mainly is made of gas that is attracted (air-breathing) by making is less than the amount of the injected fluid that mainly is made of gas, under the big situation of the amount of the main fluid that constitutes by gas of (air-breathing) of being attracted in the injected main fluid ratio that constitutes by gas, by the injected main fluid that is made of gas is rebounded slightly, can with the upper face side of convex shapedpart 2 in towards the outstanding mode of the direction identical with convexshaped part 2 form convex shapedpart 2 below side (bottom surface side).Whereby, the zone that is arranged in the another side side on the bottom surface ofslot part 1 is relatively outstanding, forms from following side-prominent convex shaped part.

[2.2] the third form of implementation

Below, utilize Figure 13 and Figure 14 that the third form of implementation of bondedfibre fabric of the present invention is described.

[2.2.1] bondedfibre fabric

As shown in figure 13, the bondedfibre fabric 174 of this form of implementation is different with first kind of form of implementation on the wavy fluctuating this point in these bondedfibre fabric 174 integral body.Below, be that the center describes with difference with first kind of form of implementation.

The bondedfibre fabric 174 of this form of implementation, with these bondedfibre fabric 174 integral body have the direction of extending with respect to slotpart 1 and convexshaped part 2 roughly the mode of the wavy fluctuating of quadrature form.

[2.2.2] manufacture method

For the method for the bondedfibre fabric 174 of making this form of implementation, the same with first kind of form of implementation, still, as the form difference of the supportingmember 280 of aeration supporting member.The supportingmember 280 of this form of implementation as shown in figure 14, is a kind of supporting member that disposes a plurality ofelongate members 285 on netted supportingmember 260 with the almost parallel ground, interval of regulation.

The supportingmember 280 of this form of implementation as shown in figure 14, is on a kind of direction or any one direction in the short direction of the length at supportingmember 280, has the supporting member of wavy fluctuating along parallel direction.Constitute the netted supportingmember 260 of this supportingmember 280, as mentioned above, form thelittle hole portion 263 in a plurality of apertures, the gas that sprays from the upper face side offiber web 100 is not subjected to the obstruction ground ventilation downwards of this netted supporting member 260.This netted supportingmember 260 can not cause the fluid that mainly is made of gas that sprays mobile big variation in addition, does not makefiber web 101 move to the below of this netted supportingmember 260.

And the topelongate member 285 that is configured in the netted supportingmember 260 that constitutes supportingmember 280 is stuffiness portions that the fluid that mainly is made of gas that sprays from above is ventilated downwards.In addition, make the flow direction change of the fluid that mainly constitutes by gas that sprays from above.Whereby, be ejected into the fluid that mainly constitutes by gas on theelongate member 285 and/or be ejected on thiselongate member 285, the reformed fluid that mainly is made of gas of its flow direction movesfiber 101, formsperistome 3.

And then, itself has fluctuating owing to constitute the netted supportingmember 260 of this supportingmember 280, so by the fluid that mainly is made of gas that sprays from the upper face side offiber web 100,fiber web 100 is configured as the shape that has along the fluctuating of the shape of this supportingmember 280.

In this form of implementation, by one towards be positioned in supportingmember 280 abovefiber web 100 spray the fluid that mainly constitutes by gas, one side makes thisfiber web 100 move along the axle directions X, can form this bondedfibre fabric 174 of this form of implementation.

Can set the form of the fluctuating in the supportingmember 280 arbitrarily.For example, the pitch between the top of the fluctuating of axle directions X as shown in figure 14 can be 1 to 30mm, is preferably 3 to 10mm.In addition, the difference of height of the top and bottom of the fluctuating on this supportingmember 280 for example, can be preferably 3 to 10mm for 0.5 to 20mm.And then, cross sectional shape in this supportingmember 280 on the directions X is not limited to shown in Figure 14 wavy, for example, also can be that each summit of rising and falling forms the shape that the general triangular of acute angle links up, perhaps, with the mode of each summit general planar of the rising and falling concavo-convex shape that links up etc. of square shape roughly.

The bondedfibre fabric 174 of this form of implementation can utilize above-mentioned bondedfibrefabric manufacturing installation 90 to make.About manufacture method of the bondedfibre fabric 174 of this bondedfibrefabric manufacturing installation 90 etc., the content of putting down in writing in can explanation with reference to the manufacture method of thebondedfibre fabric 120 of first kind of form of implementation and bondedfibrefabric manufacturing installation 90.

[2.3] the 4th kinds of forms of implementation

Utilize Figure 15 that the 4th kind of form of implementation of bondedfibre fabric of the present invention is described below.

As shown in figure 15, thebondedfibre fabric 176 of this form of implementation and the difference of first kind of form of implementation are, form second convex shapedpart 22, and this second convex shapedpart 22 is different with the height of convex shapedpart 2 on thickness direction that forms in the one side side of this bondedfibre fabric 176.Below, being that the center describes with first kind of different point of form of implementation.

[2.3.1] bondedfibre fabric

This is a kind of bondedfibre fabric that forms a plurality ofslot parts 1 in the one side side of thisbondedfibre fabric 176 side by side.And, between each of a plurality ofslot parts 1, alternately form a plurality of convex shapedparts 2 and a plurality of second convex shapedpart 22 respectively.The described convexshaped part 2 and second convex shapedpart 22 similarly form side by side with slot part 1.In addition, onslot part 1,form peristome 3 and connectingportion 4.

The convexshaped part 2 and second convex shapedpart 22 be on thefiber web 100 not by the zone of the fluid jet that mainly constitutes by gas, by formingslot part 1, become relatively outstanding zone.Second convex shapedpart 22 for example, is compared with convexshaped part 2, height on the thickness direction of thisbondedfibre fabric 176 is low, and the length on width is also narrow, still, for density, fiber orientation and the weight per unit area etc. of the fiber on this second convex shapedpart 22, identical with convexshaped part 2.

The convexshaped part 2 on thebondedfibre fabric 176 and second convex shapedpart 22 form the convexshaped part 2 or second convex shapedpart 22 between each of a plurality ofslot parts 1 that form side by side.And convexshaped part 2 forms to clipslot part 1 mode adjacent with second convex shaped part 22.In addition, second convex shapedpart 22 forms to clipslot part 1 and convexshaped part 2 adjacent modes.That is, the convexshaped part 2 and second convex shapedpart 22clip slot part 1 and alternately form.Specifically, repeat this configuration figure with the order of convex shapedpart 2, slotpart 1, second convex shapedpart 22,slot part 1, convexshaped part 2 and form.In addition, the position of the convexshaped part 2 and second convex shapedpart 22 relation is not limited thereto, and can clipslot part 1 according to the part ofbondedfibre fabric 176 at least, mode that a plurality of convex shapedpart 2 is adjacent respectively forms.In addition, a plurality of second convex shapedparts 22 also can form to clip the adjacent respectively mode ofslot part 1.

[2.3.2] manufacture method

The manufacture method of thebondedfibre fabric 176 of this form of implementation, its form of ejiction opening 913 of bondedfibrefabric manufacturing installation 90 of manufacturing that is used forbondedfibre fabric 176 is different with the ejiction opening 913 of first kind of form of implementation.

For example, thisbondedfibre fabric 176 can utilize the bondedfibrefabric manufacturing installation 90 at the interval of the ejiction opening 913 of having adjusted the fluid that ejection mainly is made of gas to make.For example, narrower by the interval that makes ejiction opening 913 than the interval of the ejiction opening 913 of first kind of form of implementation, can form the second low convexshaped part 22 of aspect ratio convexshaped part 2 of thickness direction.In addition, wideer by the interval that makes ejiction opening 913 than the interval of the ejiction opening 913 of first kind of form of implementation, the convex shaped part that the length that also can form width is bigger than convex shaped part 2.In addition, in the interval that forms ejiction opening 913, alternately dispose, form the convexshaped part 2 and second convex shapedpart 22 and clip thebondedfibre fabric 176 that slotpart 1 alternately disposes side by side by narrow interval and wide interval.

Thebondedfibre fabric 176 of this form of implementation, as mentioned above, can utilize bondedfibrefabric manufacturing installation 90 to make, but, for other content in the manufacture method of thebondedfibre fabric 176 in this bondedfibrefabric manufacturing installation 90, can be with reference to the manufacture method of thebondedfibre fabric 120 of first kind of form of implementation and the explanation of bondedfibrefabric manufacturing installation 90.

[2.4] the 5th kinds of forms of implementation

Below, utilize Figure 16 to Figure 18, describe for the 5th kind of form of implementation of the present invention.The 5th kind of form of implementation of bondedfibre fabric of the present invention and the difference of first kind of form of implementation be, connectingportion 4 is recessed at thickness direction.Below, with first kind of form of implementation difference be that the center describes.

[2.4.1] bondedfibre fabric

To shown in Figure 180, thebondedfibre fabric 178 of this form of implementation is formed withslot part 1 and convexshaped part 2 in the one side side as Figure 16.And the interval of sentencing regulation atslot part 1 forms a plurality ofperistomes 3.

Between theperistome 3 of theperistome 3 ofslot part 1 and adjacency, form along the recessed a plurality ofrecesses 44 of the thickness direction of bondedfibre fabric 178.The bottom of thisrecess 44 is formed on the position lower than the height of the thickness direction ofslot part 1.

Fiber orientation in the bottom ofrecess 44, the containing ratio of horizontal orientation fiber is than the containing ratio height of machine-direction oriented fiber.That is, constitute thisrecess 44 the bottom fiber mainly with the direction of extending with thisslot part 1 roughly the direction of quadrature (horizontal direction) mode that goes up orientation form.

Peristome 3, atslot part 1 place, the bottom byrecess 44 is recessed at the thickness direction of thisbondedfibre fabric 178, is formed on the relativelyoutstanding protuberance 40 in position outside therecess 44 of thisslot part 1.

In addition, at theseprotuberance 40 places, in thefiber 101 of theseperistome 3 peripheral regions periphery orientation along this peristome 3.Like this, the injected fluid that mainly constitutes by gas and/or by on theboard 295 that is ejected into the tabular supporting member of describing later 290, the fluid that mainly constitutes of flow direction change by gas,fiber 101 is moved along the periphery ofperistome 3.

Therecess 44 atslot part 1 place and the size ofprotuberance 40 etc. can be set in good time.For example,protuberance 40 pitch in the longitudinal direction ofprotuberance 40 and adjacency can be preferably 3 to 10mm for 1 to 30mm.In addition, the difference of height ofrecess 44 andprotuberance 40 for example can be preferably 3 to 10mm for 0.5 to 20mm.

In addition, the average weight per unit area ofprotuberance 40 for example can be for 5 to 200g/m², be preferably 10 to 100g/m²In addition, the average fiber density of thisprotuberance 40 for example can be at 0.20g/cm³Below, be preferably 0.005 to 0.05g/cm³, more preferably 0.007 to 0.10g/cm³

Average weight per unit area atprotuberance 40 is lower than 5g/m²Situation under, perhaps be lower than 0.005g/cm in average fiber density³Situation under, collapse under the routed situation applying superfluous external pressure convex shapedpart 2, have thisprotuberance 40 situation routed, can not keep the space that forms byrecess 44 atslot part 1 place of collapsing too.

On the other hand, the average weight per unit area atprotuberance 40 is higher than 200g/cm²Situation under, perhaps average fiber density is higher than 0.20g/cm²Situation under, the liquid that falls into the regulation in theslot part 1 sometimes can be trapped inprotuberance 40 places, the external pressure of surplus be applied on thisbondedfibre fabric 178 and with situation that skin directly contacts under, can give the sensation of humidity.

In addition, the weight per unit area ofrecess 44 for example can be 0 to 100g/m², be preferably 0 to 50g/m²In addition, the fibre density of thisrecess 44 for example can be at 0.20g/cm³Below, be preferably 0.0 to 0.10g/cm³

Weight per unit area atrecess 44 is higher than 100g/m²Situation under, perhaps be higher than 0.20g/cm in fibre density³Situation under, the liquid that falls into the regulation in theslot part 1 can once be trapped in the recess 44.Specifically, under with the situation of thisbondedfibre fabric 178 as the surface patch use of absorbent commodity, if under the state of liquid holdup inrecess 44 of regulation, take place that action changes etc., the liquid of regulation overflows fromrecess 44 easily, expand in theslot part 1, and then expand on the surface ofbondedfibre fabric 178 dirty sometimes skin.

[2.4.2] manufacture method and supporting member

To the manufacture method of thebondedfibre fabric 178 of this form of implementation, with top described the same, still, aeration supporting member difference.

In order to make thisbondedfibre fabric 178, can be to being positioned in thetop fiber web 100 of tabular supportingmember 290, on one side from the upper face side offiber web 100 spraying the fluid that mainly constitutes by gas than the stronger intensity of intensity of spraying mainly the fluid that constitutes by gas first kind of form of implementation, make Yi Bian make it to move along the Z direction.

Board 295 does not move the fluid that mainly is made of gas of injection downwards.And, being injected into the fluid that mainly constitutes on thefiber web 100 of upside of thisboard 295 by gas, its flow direction is changed.For example,form slot part 1 by spraying the fluid that mainly constitutes by gas.At this moment, the gas that is injected on theboard 295 oftabular component 290 can not be ventilated downwards, and its flow direction is changed.

In addition, the injected fluid that mainly constitutes by gas and/or by be injected on theboard 295, the reformed fluid that mainly is made of gas of its flow direction movesfiber 101 peripherad zones.In detail, the machine-direction oriented fiber on theslot part 1 is blown to convex shapedpart 2 sides, and the horizontal orientation fiber in theslot part 1 is being jetted towards front and back on the direction of the length direction of slot part 1.Whereby,form peristome 3.

In addition, as shown in figure 18, be injected at the fluid that mainly is made of gas under the situation in thehole portion 293 of tabular supportingmember 290, the medial surface distortion along thishole portion 293forms recess 44.

Atrecess 44 places, because the machine-direction oriented fiber at theserecess 44 places is blown to convex shapedpart 2 sides in large quantities, so, in thisrecess 44, stay the horizontal orientation fiber.Thereby,recess 44 do as a whole along roughly with the direction of thisslot part 1 quadrature orientation.

In addition, netted supportingmember 210 etc. can be equipped with at the downside of tabular supportingmember 290, for example, also.By being equipped with netted supportingmember 210, can form to general planar a side in the face of the supporting member ofrecess 44.

In addition, the amount of thickness by changing this tabular supportingmember 290 or the fluid that mainly constitutes by gas or thebondedfibre fabric 120 that intensity also can form above-mentioned first kind of form of implementation.In addition, and then, can also form and makerecess 44 be the outstanding bondedfibre fabric of overshooting shape (Ω shape) to the below of tabular supportingmember 290 from hole portion 293.Make recess 44 be the outstanding bondedfibre fabric of overshooting shape in order to form to the below of tabular supportingmember 290, for example, can list following situation: the many situations of amount of situation of being sprayed at the fluid that mainly constitutes or the injected fluid that mainly constitutes by gas by gas powerfully, onfiber web 100, apply the situation of linear tension hardly, perhaps before being about to the fluid that 100 injections mainly are made of gas to fiber web, carry out the situation of leading feeding etc. slightly.In such cases,fiber 101 entershole portion 293 easily.

The tabular supportingmember 290 of this form of implementation as shown in figure 17, is the tabular member that is formed with a plurality of hole portion 293.In detail, by forming as theboard 295 of stuffiness portion with as thehole portion 293 of ventilating part.

By the thickness that this tabular supportingmember 290 has regulation, thefiber 101 atslot part 1 place entershole portion 293,forms recess 44, can belowprotuberance 40 space be set.Whereby, for example, under situation about full-bodied liquid being taken in thisbondedfibre fabric 178, in this space, can hold the high viscosity liquid of ormal weight.

The thickness of tabular supportingmember 290 under the situation of thebondedfibre fabric 178 that forms this form of implementation, for example, can be preferably 1.0 to 5.0mm for 0.5 to 20mm.In addition, under the situation of thebondedfibre fabric 120 that forms first kind of form of implementation, for example can be preferably 0.1 to 5mm for 0.01 to 20mm.And then, for makingrecess 44, the below that is formed on tabular supportingmember 290 is the outstanding bondedfibre fabric of overshooting shape, and for example can be 0.5 to 20mm, be preferably 1.0 to 10mm.In addition, for any tabular supportingmember 290, under the situation of thickness when 20mm is above of this tabular supportingmember 290, because the fibers that enter in a plurality ofhole portion 293 of tabular supportingmember 290 are difficult to break away from fromhole portion 293, so productivity ratio can worsen sometimes.

[2.5] the 6th kinds of forms of implementation

Utilize Figure 19 that the 6th kind of form of implementation of bondedfibre fabric of the present invention is described below.

As shown in figure 19, the bondedfibre fabric 160 of this form of implementation is a kind of bondedfibre fabric that is formed with a plurality of peristomes 3.Do not form on convex shaped part and the slot part this point different with first kind of form of implementation.Below, being that the center describes with first kind of different point of form of implementation.

[2.5.1] bondedfibre fabric

As shown in figure 19, the bondedfibre fabric 160 of this form of implementation is the bondedfibre fabric that is formed with a plurality ofperistomes 3.

Onfiber web 100, for example, roughly equally spaced form a plurality ofperistomes 3 along length direction as the direction of the fluid jet that mainly constitutes by gas as fiber assembly.In addition, also roughly equally spaced form a plurality ofperistomes 3 at the interval of the width of fiber web 100.Here, the interval thatperistome 3 forms is not limited thereto, and for example, also can form with different intervals.

Each of described a plurality ofperistome 3 forms circular or substantially elliptical.And, be orientated in the mode aroundperistome 3 in the fiber orientation at each place of a plurality of peristomes 3.In other words, in the end of the length direction atperistome 3 places along the direction orientation of intersecting with respect to this length direction, in addition, at the sidepiece of the length direction ofperistome 3, along this length direction orientation.

In addition, owing to around thisperistome 3, move at the 101 injected fluids that mainly constitute of the fiber around described a plurality ofperistomes 3 places by gas, so, with thisperistome 3 around fibre density be adjusted to be higher than except thatperistome 3 around the zone in fibre density.

And, on the thickness direction of this bondedfibre fabric 160, the fibre density that is positioned in face (below) side on the supporting member 220 (Fig. 3) form than with the fibre density height of face (top) side of the opposite side of face of mounting.This is to cause owing to the fluid that mainly is made of gas because of gravity or injection focuses on supportingmember 220 sides with the fiber withfree degree 101 on thefiber web 100.

[2.5.2] manufacture method

The manufacture methods of this form of implementation etc. are identical with the manufacture method of above-mentioned first kind of form of implementation, still, do not form slot part and convex shaped part on this bondedfibre fabric 160, are different in this.Below, be that the center describes with the difference.

Be used to form the aeration supporting member of bondedfibre fabric shown in Figure 19 160, for example, can list supporting member shown in Figure 3 220, tabular supportingmember 290 shown in Figure 180 or do not have tabular plate of ventilating part etc.

Under the situation of using supportingmember 220 or tabular supportingmember 290, for example, withfiber web 101 mountings to supporting member, state this supporting member down of being in supportingfiber web 100 is moved along the direction of regulation, spray the main fluid that constitutes by gas continuously with the degree that does not form slot part from the upper face side of thefiber web 100 that is moved.

Specifically, fluid that mainly is made of gas that utilize to spray and/or the fluid that mainly is made of gas that is changed flow directions as the injected fluid that mainly is made of gas, in tofiber web 100 ventilations byelongate member 225only form peristome 3.

In addition, be injected into the amount of the fluid that mainly constitutes by gas on this bondedfibre fabric 160, so long as the degree that makes thefiber 101 offiber web 100 in the zone that is arranged in the fluid that mainly is made of gas that sprays with the degree that does not formslot part 1 to move gets final product.In this case, can not attract (air-breathing) by 915 pairs of injected main fluids that constitute by gas of suction unit of the downside that is incorporated into supportingmember 220 yet.In order can not attract (air-breathing) fluid owing to the fluid that mainly is made of gas that sprays bounces back into the shape that supportingmember 220 is upset thefiber web 100 that is shaped from the below of supportingmember 220 yet.Under the situation that attracts (air-breathing), attract the amount of (air-breathing) to be preferably the amount thatfiber web 100 is not crushed on the degree on (collapse and burst) supportingmember 220 to the fluid that mainly constitutes by gas.

In addition, do not have in use under the situation of tabular plate etc. of ventilating part, withfiber web 100 mountings to this plate, by this supporting member under the state that is in supportingfiber web 100 is moved along the direction of stipulating, spray the fluid that mainly constitutes on one side off and on, can make this bondedfibre fabric 160 by gas.Because the whole stuffiness portion that becomes of this tabular plate is so the fluid that mainly is made of gas that is sprayed off and onforms peristome 3 with the main fluid that is made of gas that its flow direction changes.In other words, formperistome 3 in the part of spraying mainly the fluid that constitutes by gas.

In addition, spray the fluid that mainly constitutes by gas, forms have concavo-convex bondedfibre fabric after, also can be wound up on the cylinder etc., the concavo-convex conquassation of formation.In addition, also can under the state thatfiber 101 is bonding to a certain extent, spray the fluid that mainly constitutes withfiber web 100 in advance with heating such as heating furnaces by gas.

Embodiment

13.1] first embodiment

＜fibre structure 〉

Use core sheath structure with high density polyethylene (HDPE) and polyethylene terephthalate, average fineness as the fiber A of 3.3dtex, average fiber length 51mm, the hydrophilic finish of coating with the mixed cotton of fiber A different fiber B on coating hydrophobicity finish this point.Use the mixing ratio of fiber A and fiber B to be 70:30, weight per unit area is adjusted to 40g/m²Fiber assembly.

＜create conditions

With the diameter is that 1.0mm, pitch are that 6.0mm forms a plurality of ejiction openings shown in Figure 9 913.In addition, ejiction opening 913 be shaped as circle, the cross sectional shape of ejiction opening 913 is a cylindrical shape.The width of ejiction opening 913 is 500mm.Be under 10001/ minute the condition, to spray hot blast at 105 ℃ of temperature, air quantity.

Supporting mass uses the turning of length 2mm, width 70mm to form the sleeve of the stainless steel-like of digging through of the long shape of circular horizontal direction.On this sleeve, the MD direction (length direction: the direction that slot part or convex shaped part extend) separate 3mm the interval, separate the interval of 3mm in CD direction (short direction: the direction of extending with slot part or convex shaped part is the direction of quadrature roughly), be configured to the above-mentioned figure of digging through latticed.In addition, the thickness of sleeve is 0.5mm.

With the fiber speed of foregoing fibre structure is that 20m/ minute carding machine is opened fibre, makes fiber web, with the width severing fiber web of 450mm.Then, utilize 20 purpose aeration net conveying fiber nets with 3m/ minute speed.Utilize the design of foregoingejection portion 910 and ejiction opening 913, under 105 ℃ of temperature, 12001/ minute condition of air quantity, jet airstream.Then, the below from the aeration net attracts (air-breathing) with the uptake less than hot blast rate.Afterwards, utilizing the aeration net to carry under this fibroreticulate state, in the stove of setting 125 ℃ of temperature, hot blast rate 10Hz for, carry about 30 seconds.

＜result 〉

Convex shaped part: weight per unit area is 51g/m², the length of thickness direction is 3.4mm (the thickness 2.3mm at top), fibre density is 0.03g/cm³, the width of each of this convex shaped part is 4.6mm, pitch is 6.7mm.

Slot part: weight per unit area is 9g/m², the length of thickness direction is 1.8mm, fibre density is 0.005g/cm³, the width of each of this slot part is 2.1mm, pitch is 6.7mm.

Connecting portion: weight per unit area is 18g/m², the length of thickness direction is 1.8mm, fibre density is 0.01g/cm³, the width of each of this connecting portion is 2.1mm, and the length of each of protuberance is 1.5mm, and the pitch of MD direction is 5.0mm, and the pitch of CD direction is 6.7mm.

Peristome: the width of each of this peristome is 2.1mm, and the length of each of peristome is 3.5mm, and the pitch of MD direction is 5.0mm, and the pitch of CD direction is 6.7mm.

Shape: form convex shaped part, slot part, peristome and connecting portion respectively, the back side of convex shaped part becomes the innermost shape that does not form this bondedfibre fabric to the direction protuberance identical with convex shaped part.In addition, at slot part, the direction along this slot part extends alternately forms a plurality of connecting portions and peristome.The area of this peristome is 5.2mm²The rectangular shape of vertical length, the turning is rounded.

[3.2] second embodiment

＜fibre structure 〉

Fibre structure is the same with first embodiment.

＜create conditions

Utilize the design of foregoingejection portion 910 and ejiction opening 913, with the condition jet airstream of 105 ℃ of temperature, air quantity 10001/ minute.Then, from the below of aeration net the fiber web of foregoing fibre structure is attracted (air-breathing) with the almost equal or more uptake of the air flow that sprays.

＜result 〉

Convex shaped part: weight per unit area is 49g/m², the length of thickness direction is 3.5mm, fibre density is 0.02g/cm³, the width of each of this convex shaped part is 4.7mm, pitch is 6.5mm.

Slot part: weight per unit area is 12g/m², the length of thickness direction is 1.9mm, fibre density is 0.006g/cm³, the width of each of this slot part is 1.8mm, pitch is 6.5mm.

Connecting portion: weight per unit area is 23g/m², the length of thickness direction is 1.9mm, fibre density is 0.01g/cm³, the width of each of this connecting portion is 1.8mm, and the length of each of protuberance is 1.5mm, and the pitch of MD direction is 5.0mm, and the pitch of CD direction is 6.5mm.

Peristome: the width of each of this peristome is 1.8mm, and the length of each of peristome is 3.2mm, and the pitch of MD direction is 5.0mm, and the pitch of CD direction is 6.5mm.

Shape: form convex shaped part, slot part, peristome and connecting portion respectively, the back side of convex shaped part roughly is smooth.In addition, at slot part, the direction of extending along this slot part alternately forms a plurality of connecting portions and peristome.The area of this peristome is 4.2mm²The rectangular shape of vertical length, the shape that the turning is rounded.

The purposes example

As the purposes of the bondedfibre fabric among the present invention, for example, can list surface patch in the absorbent commodity of sanitary napkin, lining, diaper etc. etc.In this case, convex shaped part can be any one in skin surface side, the rear side, still, and by convex shaped part being formed on the skin surface side, owing to can reduce area with contact skin, so be not easy to give the damp that causes by body fluid.In addition, surface patch and the intermediate between the absorber that also can be used as absorbent commodity uses.Owing to reduce, so there is the situation about returning of being not easy from absorber with the contact area of surface patch or absorber.In addition, owing to reduce with the contact area of skin or have a buffering sense, so, also can use in the outer surface (most external) of the lateral plate of absorbent commodity or diaper etc., the cloudy fastener of face fastener (face Off ア ス Na-) etc.In addition, also can be used to remove many aspects such as wiper attached to dust on bed or the health or dirt etc., mouth mask, breast milk pad.

[4.1] surface patch of absorbent commodity

Purposes as bondedfibre fabric of the present invention, shown in Figure 20,21, for example, can list concavo-convex with having, be provided with the situation that a plurality ofperistomes 3 and the bondedfibre fabric of comparing the relatively low connecting portion of fibre density with convexshaped part 2 use as the surface patch 301,302 of absorbent commodity at recess.In this case, preferably, the mode that becomes skin side with the face that is formed with convexshaped part 2 disposes this bondedfibre fabric.

Under with the situation of this bondedfibre fabric as surface patch 301,302 uses of absorbent commodity, when the liquid of regulation was drained, this liquid mainly fell into slot part.In addition, owing to be provided withperistome 3, so, for example,, move to absorber easily byperistome 3 even contain the liquid with viscosity of solid constituent, can suppress liquid and expand from the teeth outwards on a large scale.

In addition, the fibre density than convex shapedpart 2 is low comparatively speaking owing to connectingportion 4, so the liquid that is excreted to connectingportion 4 also can promptly move to absorber.

And then, because the major part at the fiber at connectingportion 4 places is orientated along width, so, to the tensile strength height of width, wearing in the process of absorbent commodity, can prevent to apply towards the power of friction of width etc. and make this surface patch 301,302 breakages.

On the other hand, thesidepiece 8 of convex shapedpart 2 is because fiber is intensive mutually, so the rigidity height.And, because the containing ratio height of machine-direction oriented fiber of orientation along its length, so even load is applied on the convexshaped part 2, it is routed also to be easy to prevent to collapse, for example, though convex shapedpart 2 by the load conquassation, compress restorative also can be very high.

Thereby, even because the posture change of health is applied to the load variations on the table sheet 301,302, also can keep lower with the area of contact skin, so, sense of touch can be kept, and then, returned even once be absorbed the liquid of bulk absorption, also be difficult to once more large-area being attached on the skin.

[4.2] intermediate of absorbent commodity

Purposes as bondedfibre fabric of the present invention, as shown in figure 22, for example, can list concavo-convex with having, be provided with the situation that a plurality ofperistomes 3 and this bondedfibre fabric of comparing the relative low connectingportion 4 of fibre density with convexshaped part 2 use as the intermediate 311 of absorbent commodity at recess.In this case, preferably, the mode that becomessurface patch 310 sides with the face that is formed with convexshaped part 2 disposes this bondedfibre fabric.

By the mode that becomessurface patch 310 sides with the face that forms convexshaped part 2 this bondedfibre fabric is disposed as intermediate 311, can betweensurface patch 310 and intermediate 311, a plurality of spaces be set.And then, byperistome 3 is set on intermediate 311, to drain in the short time under the situation of a large amount of liquid, the factor that hinders liquid to see through is few, and this liquid is moved to absorber.And, can prevent the expansion onsurface patch 310 on a large scale of this liquid.

And then, returned even once seeing through the liquid that intermediate 311 is absorbed bulk absorption, because intermediate 311 is low with the contact rate ofsurface patch 310, so this liquid is difficult to returnsurface patch 310 once more in large area attached on the skin.

In addition, because thecentral portion 9 of the convex shaped part in the intermediate 311 is compared withsidepiece 8, slotpart 1, it is many to contain the fiber that is orientated along thickness direction, and the summit of convex shapedpart 2 contacts withsurface patch 310, so the liquid that will remain in easily in thesurface patch 310 is guided thickness direction into.Thereby liquid is difficult onsurface patch 310 residual.

Like this, can obtain the fixed point in thesurface patch 310 and the low-residual of liquid, can prevent liquid on a large scale, for a long time attached on the skin.And then, because thesidepiece 8 of convex shapedpart 2 in intermediate 311, the containing ratio height of Qu Xiang machine-direction oriented fiber along its length, so, the liquid that moves to sidepiece 8 fromsurface patch 310 can be guided to length direction.Whereby,, also can prevent to bring out from absorbent commodity and leak, can improve the absorption efficiency of absorber even liquid spreads to width.

[4.3] most external of absorbent commodity

Purposes as bondedfibre fabric of the present invention, as shown in figure 23, for example, can list concavo-convex with having, be provided with the situation that a plurality ofperistomes 3 and fibre density are used as the most external 321 of absorbent commodity than the bondedfibre fabric of the relative higher connectingportion 4 of convex shapedpart 2 at recess.In this case, preferably, the mode that becomes the outside of this absorbent commodity with the face that is formed with convexshaped part 2 disposes this bondedfibre fabric.

Dispose owing to become the mode in the outside of absorbent commodity with the face that will be formed with the convexshaped part 2 in the most external 321, so when using this absorbent commodity, sense of touch is good under situation about mainly touching with hand.In addition, by means of the peristome in the slot part 13, aeration is good.

Each constitutes thing

Describe each below in detail and constitute thing.

[5.1] about bondedfibre fabric

[5.1.1] fiber assembly

Fiber assembly is to form the roughly fiber assembly of sheet, is in the state that the fiber that constitutes this fiber assembly has the free degree.In other words, be a kind of fiber assembly that has the free degree between the fiber that has.Here, the free degree between the so-called fiber refers to the degree that can fiber be moved freely by the fluid that mainly is made of gas as the fiber web of fiber assembly.This fiber assembly for example, can the blended fiber by will having mixed a plurality of fibers spray in the fibrolaminar mode that forms specific thickness and forms.In addition, for example, can by with a plurality of different fibers each several times lamination form fibrolaminar mode and spray and form.

As fiber assembly of the present invention, for example, can list the fiber web that utilizes combing method to form, perhaps by heat bonding and the fiber web before fiber heat bonding is each other solidified.In addition, can list the net that forms by the air lay method, perhaps be solidified fiber web before by heat bonding and fiber heat bonding each other.In addition, can list the heat bonding curing fiber web before that utilizes the sticking method embossing of point.In addition, can list and utilize the sticking method spinning of point, embossing fiber assembly in the past, the fiber assembly before perhaps the heat bonding of embossing is solidified.In addition, can list needle point method fiber web that form, that partly interweave.In addition, can list the half crossed fiber net that utilizes jet net-spraying method to form.In addition, can list and utilize the fiber assembly of meltblown spinning, fiber heat bonding each other before solidifying.In addition, can list the solvent that utilizes that utilizes the solvent bonding method to form fiber is solidified fiber assembly before each other.

In addition, preferably, what utilize that air (gas) fluid capacitance easily arranges fiber again is the fiber web that forms with the combing method that uses long fiber, and then, can list fiber free degree height each other, the heat bonding net in the past that only forms by interweaving.In addition, utilizing after a plurality of air (gas) stream forms slot parts (concavo-convex) etc., make its on-woven materialization in order to keep its shape invariance, handle (heat treated) by utilizing predetermined heating device etc. to carry out heating furnace, it is preferred making the hot blast method that is included in the thermoplastic fibre heat bonding in the fiber assembly.

[5.1.2] fiber

As the fiber that constitutes fiber assembly (for example, constitute thefiber 101 offiber web 100 shown in Figure 1), for example, can list that the thermoplastic resins such as polyethylene terephthalate, nylon, polyamide of polypropylene, the modification of polyethylene with low-density polyethylene, highdensity polyethylene, straight chain shape, polypropylene, polyethylene terephthalate, modification constitute, use the fiber of each resin or each resin compounded individually.

Compound shape for example, can be enumerated the fusing point core-sheath-type higher than the fusing point of sheath composition of knockout composition, the eccentric type of core sheath, the arrange type arranged side by side that the fusing point of left and right sides composition is different.In addition, also can be with abnormity such as hollow type, flat, Y type or C type or the three-dimensional crinkled fibre of crispaturaing or significantly crispaturaing hidden, that utilizes that physical loads such as current or heat or embossing cut apart cuts apart mixing such as fiber.

In addition, in order to form the shape that three-dimensional is crispaturaed, the tangible crinkled fibre of regulation or hiding crinkled fibre can be cooperated.Here, the so-called three-dimensional shape of crispaturaing, be helical form, word shape, Ω shape etc., fiber orientation is mainly towards in-plane, fiber orientation is also partly towards thickness direction.Thereby, because the buckling strength of fiber itself is to the thickness direction effect, so even apply external pressure, volume also is not easy to collapse routed.And then wherein, if spiral helicine shape, then when external pressure is discharged, its shape can reinstatement, so, even since excessive external pressure with the volume conquassation some, also recover original thickness after externally pressure discharges easily.

The fiber of obviously crispaturaing is to crispatura by machinery to give shape or core sheath structure and be eccentric type, the general name of the fiber of crispaturaing in advance such as arrange side by side.The crinkled fibre of hiding by heating, can be found to crispatura.

Crispatura for machinery, can come by difference, heat, the pressurization of linear velocity the fiber of the continuous linearity after the spinning is controlled, the number of crispaturaing of per unit length be many more, can improve the buckling strength for external pressure more.For example, the number of crispaturaing in 10 to 35/inch scope, more preferably, in 15 to 30/inch scope.

For utilizing thermal contraction to give for the shape owing to constitute by the different plural resin of fusing point, and when heating owing to the fusing point difference makes the percent thermal shrinkage variation, so, be the fiber that so-called three-dimensional is crispaturaed.The resin structure of fibre section can list the eccentric type of core sheath structure, the different parallel type of fusing point of left and right sides composition.The percent thermal shrinkage of this fiber, for example, can be in 5 to 90% scope, more preferably in 10 to 80% scope.

The assay method of percent thermal shrinkage is made 200g/m for (1) with the fiber of 100% mensuration²Net, (2) make the sample that is cut into 250 * 250mm size, (3) this sample was placed 5 minutes in the heating furnace of 145 ℃ (418.15K), (4) measure the length dimension after shrinking, and (5) can calculate percent thermal shrinkage by the length dimension difference before and after the thermal contraction.

With this bondedfibre fabric as under the situation of surface patch, for example, if consider the sensation that enters or touch skin of liquid, preferably, fiber number is in 1.1 to 8.8dtex scope.

This bondedfibre fabric is being used as under the situation of surface patch, as the fiber that constitutes fiber assembly, for example, stay a small amount of menses on the skin or sweat etc., also can contain the hydrophilic fibre of cellulose families such as paper pulp, chemical pulp, artificial silk, acetate fibre, natural cotton for absorption of residual.But, because cellulosic fibre is not easy to discharge the liquid that was once absorbing, so, for example,, can be exemplified as being that the scope of 0.1 to 5 quality % is sneaked into respect to integral body as preferred form.

Under the situation of utilizing this bondedfibre fabric as surface patch, for example, consider the entering of liquid or return wetly, add hydrophilizing agent or hydrophober etc. in the hydrophobicity synthetic fiber that also can enumerate in front or apply etc.In addition, also can give hydrophily by corona treatment or Cement Composite Treated by Plasma.In addition, also can contain hydrophobic fiber.Here, so-called hydrophobic fiber refers to and carried out the fiber that known hydrophobic is handled.

In addition, in order to improve albefaction, for example, also can contain inorganic fillers such as titanium dioxide, barium sulfate, calcium carbonate.Under the situation of the composite fibre of core-sheath-type, can only in core, contain described inorganic filler, also can in sheath, contain inorganic filler.

In addition, as previously described, be easy to utilize the fiber arranged more long fiber utilization combing method that is to use of air flow to form fiber web, in order to utilize a plurality of air flows to form after the slot parts (concavo-convexization) etc., make it the on-woven materialization with keeping its shape invariance, preferably utilize heating furnace to handle the hot blast method that (heat treated) makes the thermoplastic fibre heat bonding.As the fiber that is suitable for this method, for fiber intersection point hot adhesion each other, preferably use the fiber of core sheath structure, parallel construction, more preferably, with the fiber formation of the mutual easy core sheath structure of hot adhesion reliably of sheath.Particularly, preferably, the core sheath composite construction fiber that uses the core sheath composite fibre that constitutes by polyethylene terephthalate and polyethylene or polypropylene and polyethylene to constitute.These fibers can use individually or with two or more fiber combinations.In addition, fibre length is 20 to 100mm, especially, is preferably 35 to 65mm.

[5.2] about the bondedfibre fabric manufacturing installation

The fluid that [5.2.1] mainly is made of gas

According to the fluid that mainly constitutes of the present invention by gas, for example, can list the gas of adjusting to normal temperature or set point of temperature, perhaps contain the atomic aerosol of solid or liquid at this gas.

As gas, for example, can be air, nitrogen etc.In addition, gas also can be the steam that contains the liquid of steam etc.

So-called aerosol refers to the material that is dispersed with liquid or solid in gas, below, enumerate its example.For example, can list inorganic fillers such as the activating agent of the ink, the softeners such as silicone that are used for improving flexibility that are dispersed with painted usefulness, the hydrophily that is used to prevent charged and control wettability or hydrophobicity, the titanium dioxide that is used to improve the energy of fluid, barium sulfate, be used for when improving fluid energy heat treated improve concavo-convex shaping retentivity powder adhesives such as polyethylene, be used for the material of antihistaminics such as antipruritic bagodryl hydrochloride, thymol, humectant, bactericide etc.Here, solid also comprises gelatinous object.

Can suitably adjust mainly the temperature of the fluid that constitutes by gas.The shape of the bondedfibre fabric that can maybe will make according to the character of the fiber that constitutes fiber assembly is carried out suitable adjustment.

Here, for example, move rightly in order to make the fiber that constitutes fiber assembly, the main temperature of the fluid that constitutes by gas, in order to increase the free degree of the fiber that constitutes fiber assembly, higher to a certain extent temperature is preferred.In addition, in fiber assembly, comprise under the situation of thermoplastic fibre, can be by making mainly the temperature of temperature for softening this thermoplastic fibre of the fluid that constitutes by gas, make the softening or fusion of thermoplastic fibre that is configured in the zone of having sprayed mainly the fluid that constitutes by gas etc., simultaneously, make it underhardening again.

Whereby, for example,, keep the shape of bondedfibre fabric by spraying the fluid that mainly constitutes by gas.In addition, for example, when moving fiber assembly, give the intensity of this fiber assembly degree that (bondedfibre fabric) do not scatter in the travel mechanism that utilizes regulation.

Can suitably adjust mainly the flow of the fluid that constitutes by gas.The concrete example that has the fiber assembly of the free degree as fiber each other, for example, can list and utilize highdensity polyethylene to constitute sheath, utilize polyethylene terephthalate to constitute core, with fibre length 20 to 100mm, be preferably 35 to 65mm, fiber number 1.1 is to 8.8dtex, being preferably 2.2 to 5.6dtex core sheath fiber is main body, if utilizing combing method to open fibre then use fibre length is 20 to 100mm, be preferably 35 to 65mm fiber, if utilizing the air lay method to open fibre then use fibre length is 1 to 50mm, be preferably 3 to 20mm fiber, adjust to 10 to 1000g/m², be preferably 15 to 100g/m²Fiber web 100.Condition as the fluid that mainly constitutes by gas, for example, can list that (ejiction opening 913: diameter 0.1 is to 30mm in Fig. 8 or the ejection portion 910 that is formed with a plurality of ejiction openings 913 shown in Figure 9, be preferably 0.3 to 10mm, pitch 0.5 is to 20mm, be preferably 3 to 10mm, be shaped as just round, ellipse or rectangle) in, with air quantity be 3 to 50[L/ (minute holes)], be preferably 5 to 20[L/ (minute holes)] condition under to fiber web 100 15 to 300 ℃ of injection temperations (288.15K to 573.15K), be preferably the situation of the hot blast of 100 to 200 ℃ (373.15K to 473.15K).For example, spraying with above-mentioned condition under the situation of the fluid that mainly is made of gas, the fiber assembly that the fiber that is constituted can change its position or direction is be fit in the fiber assembly among the present invention a kind of.By utilizing this fiber, creating conditions and make, for example, can form the bondedfibre fabric shown in Fig. 2,3.The size of slot part 1 or convex shaped part 2 or weight per unit area can obtain in following scope.For slot part 1, thickness 0.05 to 10mm, be preferably in 0.1 to 5mm the scope, width 0.1 to 30mm, be preferably in 0.5 to 5mm the scope, weight per unit area 2 to 900g/m², be preferably 10 to 90g/m²Scope in.For convex shaped part 2, thickness 0.1 to 15mm, be preferably in 0.5 to 10mm the scope, width 0.5 to 30mm, be preferably in 1.0 to 10mm the scope, weight per unit area 5 to 1000g/m², be preferably 10 to 100g/m²Scope in.In addition, at slot part 1, the interval formation peristome 3 with regulation forms connecting portion 4 between peristome 3 and peristome 3.The size of peristome 3 or connecting portion 4 or weight per unit area can obtain in following scope.For connecting portion 4, thickness is identical or littler than the thickness of convex shaped part with convex shaped part 2, preferably 20% to 100%, particularly preferably in 40% to 70% scope in, width and length is 0.1 to 30mm, preferably in 0.5 to 10mm scope, weight per unit area 5 to 200g/m², preferably 10 to 100g/m²Scope in.For peristome 3, width and length 0.1 to 30mm, be preferably in 0.5 to 10mm the scope, weight per unit area 0 to 100g/m², be preferably 10 to 100g/m²Scope in.In addition, can make bondedfibre fabric, still, be not limited to this scope with the scope of above-mentioned numerical value roughly.

[5.2.2] aeration supporting member

Asaeration supporting member 200, can list supportingfiber web 100 sides and be general plane shape or curved surface shape roughly, simultaneously, the general plane shape or roughly the surface at curved surface shape place be the supporting member of general planar.As general plane shape or curved surface shape roughly, for example, can list tabular or cylindric.In addition, so-called general planar shape, for example, it is concavo-convex etc. that the face itself at the mountingfiber web 100 at supporting member place of referring to forms.Specifically, the net that can list netted supportingmember 210 places does not form the supporting member of concavo-convex grade.

As this aeration supporting member, for example, can list tabular supporting member or supporting member cylindraceous.Specifically, can list above-mentioned netted supportingmember 210, supportingmember 220.

Here,aeration supporting member 200 can be configured on the bondedfibrefabric manufacturing installation 90 with dismantling.Whereby, can suitably disposeaeration supporting member 200 corresponding to desirable bondedfibre fabric.In other words, in bondedfibrefabric manufacturing installation 90,aeration supporting member 200 can be changed with other the aeration supporting member that chooses from a plurality of different aeration supporting members.

The mesh portion that regards to netted supportingmember 210 shown in Figure 4 or supportingmember 220 places shown in Figure 13 down describes.Mesh portion as this aeration, for example, can list the silk that resins such as utilizing polyester, polyphenylene polyphenylene sulfide, nylon, conductive monofilaments forms, the perhaps silk that is formed by metals such as stainless steel, copper, aluminium etc. is by plain weave is knitted, twill weave, crowfoot satin, bilayer are knitted, spiral is knitted etc. inweaves aeration net etc.

Here, the venting quality of this aeration net for example, by the rugosity that partly makes the method that inweaves or silk, the change of shape of silk, can partly make venting quality change.Particularly, can list the aeration screen cloth that the spiral made by polyester knits, flat filament and the circular wire of utilizing stainless steel to make carried out the aeration screen cloth that spiral is knitted.

As tabular supportingmember 230 shown in Figure 10, tabular supporting member 17 shown in Figure 17, for example, can list with metal sleeves such as stainless steel, copper, aluminium.Sleeve can list the sleeve that above-mentioned metallic plate is partly run through with compulsory figure.Become second ventilating part at the position that this metal is dug through, the position that metal is not dug through becomes stuffiness portion.In addition, with top described the same, in stuffiness portion, in order to improve the sliding on surface, preferably, its surface is level and smooth.

As sleeve, for example, can list with the circular long rectangular shape of horizontal direction of length 3mm, width 40mm each turning is made, it is the sleeve of the stainless steel of 0.3mm that the arranged spaced that the hole portion that metal is dug through formation separates the interval of 2mm in processing line direction (moving direction), separate 3mm at width becomes latticed thickness.

In addition, can list and be configured to hole portion staggered.For example, can list the hole portion that digs through metal with the circle of diameter 4mm, be 12mm in processing line direction (moving direction) pitch, be the sleeve of stainless steel of the thickness 0.3mm that disposes of 6mm in the width pitch staggeredly.Like this, can set the figure (the hole portion of formation) or the configuration of digging through rightly.

And then, can list theaeration supporting member 200 of the fluctuating that regulation is set.For example, can list the fluid that mainly is made of gas is not alternately had fluctuating (for example, wavy) to processing line direction (moving direction) by the position of direct injection aeration supporting member.By using theaeration supporting member 200 of such shape, for example, can obtain in the peristome that forms regulation, integrally onaeration supporting member 200, alternately to form the bondedfibre fabric of fluctuating (for example, wavy) shape.

[5.2.3] injection equipment

Forejection portion 910,, for example, can suitably adjust the interval of the recess (slot part) in formation concavo-convex or the height of convex shaped part etc. by changing mainly the direction of the fluid that constitutes by gas.In addition, for example, utilize the structure of the direction automatically change above-mentioned fluid, for example, can suitably adjust, make slot part etc. form tortuous shape (wavy, word shape) or other shape.In addition, by adjusting mainly the spray volume or the ejection time of the fluid that constitutes by gas, can suitably adjust the shape of slot part or peristome or form figure.Mainly the fluid that is made of gas can be vertical to the spray angle offiber web 100, in addition, also can be on the moving direction F offiber web 100, with the regulation angle towards processing line direction as this moving direction F, also can with the regulation angle towards with processing line side in the opposite direction.

[5.2.4] heating arrangements

Method asfiber 101 bondings that make thebondedfibre fabric 120 that forms the peristome of stipulating, for example, can list the bonding of utilizing needle point method, jet net-spraying method, solvent bonding method to carry out, the hot adhesion that perhaps utilizes sticking method of point or air-flow spray net method to carry out, but, for the shape of the peristome that keeps formed regulation, preferably adopt air-flow spray net method.In addition, for example, it is preferred utilizing the heat treatment in the air-flow spray net method ofheating part 950.

[5.2.5] other

Utilizebondedfibre fabric 115 thatheating part 950 heating makes byconveyer 930 and on the direction F of regulationcontinuous conveyer 940 move to operation or the coiling process that forexample bondedfibre fabric 115 is cut into the shape ofregulation.Conveyer 940 is the same withconveyer 930, also can be equipped withband portion 949,rotating part 941 etc.

Describe above and illustrate the preferred embodiment of the present invention, but these only are examples of the present invention, can not be interpreted as limitation of the present invention, replenish, omit, displacement or other correction, do not break away from the spirit and scope of the present invention.Thereby the present invention only by the claim restriction, is not limited by the description of top specification.

Claims (17)

1. bondedfibre fabric, for having the bondedfibre fabric of first direction and second direction, described bondedfibre fabric comprises:

A plurality of slot parts, described a plurality of slot parts are recessed in first lateral thickness direction of described bondedfibre fabric, form by a plurality of peristomes and a plurality of connecting portion,

A plurality of convex shaped parts, described a plurality of convex shaped parts are outstanding in described first lateral thickness direction, with mode adjacency along described a plurality of slot parts,

Described a plurality of peristome forms along aforementioned first direction,

Described a plurality of connecting portion be formed on the regulation in aforementioned a plurality of peristome peristome and and the peristome of this regulation between peristome adjacent on the aforementioned first direction,

In aforementioned a plurality of connecting portion each, in each of aforementioned a plurality of slot parts, further the thickness direction at this bondedfibre fabric is recessed on, and the containing ratio of the second direction orientation fibers that is orientated on aforementioned second direction is than the containing ratio height of the first direction orientation fibers that is orientated on aforementioned first direction.

2. bondedfibre fabric as claimed in claim 1 is characterized in that, the fiber of aforementioned a plurality of peristomes on each periphery of described a plurality of peristomes is along each periphery orientation of described a plurality of peristomes.

3. bondedfibre fabric as claimed in claim 1 or 2 is characterized in that each of aforementioned a plurality of peristomes is circular or substantially elliptical.

4. bondedfibre fabric as claimed in claim 1 or 2 is characterized in that, for aforementioned a plurality of peristomes each, the length of aforementioned a plurality of peristomes on aforementioned first direction is 0.1mm to 5mm.

5. bondedfibre fabric as claimed in claim 1 or 2 is characterized in that, height 90% below of each of aforementioned a plurality of slot parts on each thickness direction at this bondedfibre fabric at aforementioned a plurality of convex shaped parts of the height on the thickness direction of this bondedfibre fabric.

6. bondedfibre fabric as claimed in claim 1 or 2, it is characterized in that, the convex shaped part of the regulation in aforementioned a plurality of convex shaped part, with clip aforementioned a plurality of slot part in regulation slot part and the convex shaped part adjacent with the convex shaped part of aforementioned regulation compared the height difference on the thickness direction of this bondedfibre fabric.

7. bondedfibre fabric as claimed in claim 1 or 2 is characterized in that the top of each of aforementioned a plurality of convex shaped parts is the general flat shape.

8. bondedfibre fabric as claimed in claim 1 or 2, it is characterized in that, as in this bondedfibre fabric and the faces face opposition sides that form aforementioned a plurality of slot parts and aforementioned a plurality of convex shaped parts second, form to aforementioned convex shaped part in the side-prominent a plurality of zones of projected direction opposite.

9. bondedfibre fabric as claimed in claim 1 or 2 is characterized in that, is wavyly to rise and fall on aforementioned first direction.

10. bondedfibre fabric as claimed in claim 8 is characterized in that, aforementioned second side in this bondedfibre fabric is general planar.

11. bondedfibre fabric as claimed in claim 1 or 2 is characterized in that, for a plurality of sidepieces in each of aforementioned a plurality of convex shaped parts each, the containing ratio of aforementioned first direction orientation fibers is than the containing ratio height of aforementioned second direction orientation fibers.

12. bondedfibre fabric as claimed in claim 8, it is characterized in that, for each of aforementioned a plurality of convex shaped parts, the spatial area rate of measuring from aforementioned first side of the convex shaped part of regulation is bigger than the spatial area rate of measuring from aforementioned second side of the convex shaped part of aforementioned regulation

The aforesaid space area occupation ratio calculates as follows:

Spatial area rate (%)=(the space gross area (mm²)/measurement range area (mm²)) * 100

Here, the space gross area is calculated by (multiplication factor during the space gross area during mensuration/mensuration), and in addition, the measurement range area is calculated by (multiplication factor during the measurement range area during mensuration/mensuration).

13. bondedfibre fabric as claimed in claim 11 is characterized in that, each of aforementioned a plurality of convex shaped parts has as a plurality of central portions that are clipped in the zone in aforementioned a plurality of sidepiece,

For each of aforementioned a plurality of central portions, in each of described a plurality of central portions fibre density than each fibre density height of aforementioned a plurality of connecting portions, lower than each fibre density of aforementioned a plurality of sidepieces.

14. bondedfibre fabric as claimed in claim 1 or 2 is characterized in that, the fibre density of each of aforementioned a plurality of convex shaped parts is at 0.20g/cm³Below,

The fibre density of each of aforementioned a plurality of connecting portions is at 0.20g/cm³Below.

15. bondedfibre fabric as claimed in claim 1 or 2 is characterized in that, each of aforementioned a plurality of connecting portions, and the weight per unit area in each of aforementioned a plurality of connecting portions is lower than each weight per unit area of aforementioned a plurality of convex shaped parts.

16. bondedfibre fabric as claimed in claim 1 or 2 is characterized in that, the weight per unit area of each of aforementioned a plurality of convex shaped parts is 15g/m²To 250g/m²,

The weight per unit area of each of aforementioned a plurality of connecting portions is 5g/m²To 200g/m²

17. bondedfibre fabric as claimed in claim 1 or 2 is characterized in that, the mixed with fibers that constitutes this bondedfibre fabric has hydrophobic fiber.

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