CN101277665B - Disposable diaper - Google Patents

Abstract

A disposable pant-shaped diaper (1) which comprises an absorbent body (10) and an outer sheet (20) provided in the outer face side of this absorbent body (10) and in which the front corsage and the back corsage of the outer sheet (20) are bonded together at both sides, wherein the outer sheet (20) has elastic and stretch waist members located around the waist opening and a plural number of elastic and stretch hipline members horizontally located in the front corsage (F) and the back corsage (B) at intervals in the up and down direction, at the both sides where the front corsage and the back corsage are bonded together, side flaps (32,32) extending outward from the bonding parts are provided, and a fastening device (33) mechanically engageable with the outer face of the front corsage is provided in the front face side of each side flap (32).

Description

Disposable diaper

Technical field

The present invention relates generally to a kind of adaptive Breeches type disposable diaper that can adjust to health.

Background technology

In the past, in Breeches type disposable diaper, for will be for realizing that the absorber that body fluid absorbs wear health, have improved adaptability to health for the various elastic telescopic parts of outer load configuration that keep above-mentioned absorber.

For example, in followingpatent documentation 1, as shown in figure 21, a kind of Breeches type disposable diaper is disclosed, have permeable top layer sheet 50 and opaque liquid backing layer sheet 51 and be configured in this two thin slices 50, absorber 52 between 51, engage the both sides of predecessor's sheet and back body sheet and form waist opening portion and a pair of leg opening part, wherein, around above-mentioned waist opening portion, dispose waist elasticity extensible member 48,48 ... and along periphery continuous substantially leg elastic members 53 is set at above-mentioned two leg opening part places, 53 ... and at waistline waist elasticity extensible member 49 is set, 49, so that disposable diaper is suitable for health.

And, in following patent documentation 2, a kind of Breeches type disposable diaper is disclosed as shown in figure 22, constituted by absorbent main body and exterior member, predecessor's sheet and back body sheet at exterior member arrange the first telescopic resilience parts 55 that are made of many telescopic resilience materials respectively, 55 ... and the second telescopic resilience parts 56,56 ... these telescopic resilience parts 55 ... 56 ... respectively from the side edge part of a side of front and rear body sheet through under the hip and arrive the side edge part of opposite side, wherein at least a portion is enclosed peristome configuration along a pair of lower limb, so in the hip bottom with fixing arranged spaced.

And then, in followingpatent documentation 3, a kind of Breeches type disposable diaper is disclosed: come off in order further to prevent skew, as shown in figure 23, has the top layer of being provided with sheet, the main body of backing layer sheet and absorber, this body region is divided into veutro portion and drosal part, engage fixing this veutro portion and drosal part left and right sides edge portion separately and formation waist opening portion and leg opening part, on waist opening portion and leg opening part, along circumference whole circumference separately, dispose waist elasticity extensible member 57 and the leg elastic members 58 of the continuous substantially fold of formation, and, veutro and/or many waistline elastomeric elements 59 of dorsal part configuration at the waistline elastomeric element, 59 ..., this waistline elastomeric element 59,59 are configured to the shape of hip lower side displacement, this waistline elastomeric element 59,59 displacement is in the central part maximum of veutro portion.

Patent documentation 1 Japanese kokai publication hei 7-265357 communique

Patent documentation 2 Japanese kokai publication hei 11-36103 communiques

Patent documentation 3 TOHKEMY 2001-258931 communiques

In Breeches type disposable diaper, as mentioned above, by in waist opening portion, leg opening part, these three parts of waistline part the elastic telescopic parts being set independently respectively, guarantee the adaptability to health.But, though can obtain minimal adaptability by above-mentioned various elastic telescopic parts, because individual's physical difference is bigger, not necessarily can access the satisfaction of user.

Summary of the invention

Therefore, major subjects of the present invention is, a kind of disposable diaper is provided, and guarantees to the adaptability of health except utilizing the elastic telescopic parts, can also adjust adaptability arbitrarily according to individual differences.

And second problem is, can wear Breeches type disposable diaper with will getting of belt diaper.

In order to solve above-mentioned problem, the present invention of first technical scheme, a kind of Breeches type disposable diaper is provided, comprise the absorbent main body that contains absorber and be arranged on the outer load of the outer surface side of this absorbent main body, predecessor's sheet by engaging above-mentioned outer load in both sides and afterwards the body sheet form the leg opening part of waist opening portion and pair of right and left, it is characterized in that

Above-mentioned outer load has: be configured in around the above-mentioned waist opening portion the waist elasticity extensible member and on predecessor's sheet and back body sheet the empty along the vertical direction standard width of a room in an old-style house every and a plurality of waistline elastic telescopic parts of along continuous straight runs configuration,

Both sides in above-mentioned predecessor sheet and back body chip bonding, by constituting in above-mentioned predecessor sheet and the back body sheet an outer load part of leaning to one side sheet, the side portion that formation is extended laterally from above-mentioned junction surface is extended flap, and extend flaps in these this side portion and be provided with the box-like button parts of mechanical clasps, constitute and pinch above-mentioned one side portion of leaning to one side sheet and extend flap and be fastened on the outer surface of another sheet of leaning to one side.

In the invention of above-mentioned first technical scheme, both sides in predecessor's sheet and back body chip bonding, by constituting in above-mentioned predecessor sheet and the back body sheet an outer load part of leaning to one side sheet, the side portion that formation is extended laterally from above-mentioned junction surface is extended flap, and is provided with the box-like button parts of mechanical clasps at these side portion extension flaps.And, wearing under the state of Breeches type disposable diaper under the inadequate situation of the adaptability of health, by pinching the outer surface that above-mentioned side portion is extended flap and is fastened on another sheet of leaning to one side, can at random adjust adaptability.

And in the present invention, from the superiority made, to the viewpoint of the adaptability of health etc., above-mentioned side portion is extended flap and partly is made of an outer load of leaning to one side sheet that constitutes in predecessor's sheet and the back body sheet.

In order to solve above-mentioned second problem, the present invention as second technical scheme, the disposable diaper of first technical scheme is provided, wherein, on the sidepiece of above-mentioned another sheet of leaning to one side, above-mentioned outside predecessor's sheet and junction surface that back body sheet engages in both sides and the position between the absorbent main body of load, be formed for separating predecessor's sheet and tearing of back body sheet used the hole line.

In the described invention of above-mentioned second technical scheme, further adjust under the adaptive situation thinking, can tear above-mentioned tearing and use the hole line, predecessor's sheet is separated with back body sheet, be dressed on the health with the main points of belt diaper.

As the present invention of the 3rd technical scheme, provide as the described disposable diaper of second technical scheme, fix waistline elastic telescopic parts by in above-mentioned inboard of tearing with the hole line sealing being set.

The present invention of above-mentioned the 4th technical scheme, any described disposable diaper in first～the 3rd technical scheme is provided, wherein, above-mentioned waistline elastic telescopic parts are set to such an extent that be lower than the contractility of the waistline elastic telescopic parts that are configured in above-mentioned another sheet side of leaning to one side with being configured in above-mentioned one contractility of waistline elastic telescopic parts of leaning to one side the sheet side.

The invention of above-mentioned the 4th technical scheme, set to such an extent that be lower than the contractility of the waistline elastic telescopic parts that are configured in above-mentioned another sheet side of leaning to one side with being configured in above-mentioned one contractility of waistline elastic telescopic parts of leaning to one side the sheet side, its result, under the state before use, the contractility of the waistline elastic telescopic parts of above-mentioned another sheet side of leaning to one side is higher relatively, thereby above-mentioned one the side portion of leaning to one side sheet extend flap towards another lean to one side sheet inboard and processing ease, simultaneously, when when wearing state and begin to carry out accommodation, can set a contractility of waistline elastic telescopic parts of leaning to one side sheet relatively low, thereby pinch easily that above-mentioned side portion is extended flap and to another sheet side tractive of leaning to one side.

As the present invention of the 5th technical scheme, provide as any described disposable diaper in first～the 4th technical scheme, wherein, form above-mentioned one finished width of leaning to one side sheet to such an extent that be wider than the finished width of above-mentioned another sheet of leaning to one side.

The present invention as the 6th technical scheme, provide as any described disposable diaper in first～the 5th technical scheme, wherein, above-mentioned side portion is extended flap for cutting apart structure up and down, extends flap in the side portion of epimere side and hypomere side and is respectively equipped with the box-like button parts of above-mentioned mechanical clasps.

The described invention of above-mentioned the 6th technical scheme, above-mentioned side portion is extended flap for cutting apart structure up and down, extend flap in the side portion of epimere side and hypomere side and be respectively equipped with the box-like button parts of above-mentioned mechanical clasps, by being extended flap, side portion cuts apart up and down, accommodation around the waist opening portion and the accommodation of waistline can be independently carried out, adaptability can be more improved.

The present invention as the 7th technical scheme, provide the 6th technical scheme described disposable diaper, wherein, extend in the side portion of above-mentioned epimere side and hypomere side and be formed for separating above-mentioned epimere side side portion between the flap and extend flap and hypomere side side portion and extend tearing of flap and use the hole line.

In the described invention of above-mentioned the 7th technical scheme, when wearing, can tear above-mentioned tearing and use the hole line, make epimere side side portion extend that flap and hypomere side side portion extend that flap intersects mutually and the intersection that engages is fixed.

The present invention as the 8th technical scheme, provide as any described disposable diaper in first～the 7th technical scheme, wherein, the outer surface side of extending flap in above-mentioned one side portion of leaning to one side sheet is provided with above-mentioned mechanical engagement formula button parts, and be provided with bracelet in the outer surface side of above-mentioned another sheet of leaning to one side, constitute can make above-mentioned one side portion of leaning to one side sheet extend flap to pass this bracelet after, turning back is fixed on the outside.

The invention effect

According to the present invention of above detailed description, can guarantee adaptability to health can carry out accommodation according to individual differences in addition by the elastic telescopic parts.

Description of drawings

Fig. 1 is the finished product appearing diagram of the Breeches typedisposable diaper 1 of the first embodiment of the present invention.

Fig. 2 is the expanded view of Fig. 1.

Fig. 3 is the III-III alignment view of Fig. 2.

Fig. 4 is the IV-IV alignment view of Fig. 2.

Fig. 5 is figure suitable with the III-III alignment view of Fig. 2 under the finished product state.

Fig. 6 is the decomposition diagram of absorbentmain body 10 andouter load 20.

Fig. 7 is the manufacturing instruction drawing (one) of Breeches typedisposable diaper 1.

Fig. 8 is the manufacturing instruction drawing (its two) of Breeches typedisposable diaper 1.

Fig. 9 is the manufacturing instruction drawing (its three) of Breeches typedisposable diaper 1.

Figure 10 be other of expression mechanical engagementformula button parts 33 example is installed want facial planes figure.

Figure 11 is the expanded view of theouter load 20 of second embodiment.

Figure 12 (A), (B) together represent to form to extend tearing offlap 32 at the Splittable side portion and want portion's expanded view with the example of hole line.

Figure 13 is the expanded view of the Breeches type disposable diaper of the 3rd embodiment.

Figure 14 is the diaper expanded view of example of theouter load 20 of expression the 4th embodiment.

Figure 15 (A)～(C) be the side portion of together representing the 5th embodiment shape example of extendingflap 32 want facial planes figure.

Figure 16 is the finished product appearing diagram of the Breeches typedisposable diaper 1 of the 6th embodiment.

Figure 17 is the expanded view of Figure 16.

Figure 18 be expression the 6th embodiment the Breeches type disposable diaper exampleouter load 20 variation want portion's expanded view.

Figure 19 is the expanded view of the Breeches type disposable diaper of the 7th embodiment.

Figure 20 is the inner face figure of Figure 19.

Figure 21 is expanded view and the finished figure of representing Breeches type disposable diaper in the past.

Figure 22 is the expanded view of representing Breeches type disposable diaper in the past.

Figure 23 is the expanded view of representing Breeches type disposable diaper in the past.

Label declaration

1 ... Breeches type disposable diaper

10 ... absorbent main body

11 ... the liquid permeability surface patch

12 ... leakage prevention sheet

13 ... absorber

14 ... crape paper

15 ... the fold non-woven fabrics

16～18 ... wire elastic telescopic parts

20 ... outer load

21,23 ... waist opening portion

22,24 ... waist portion

25,26 ... the waist elasticity extensible member

27,28 ... waistline elastic telescopic parts

29 ... lower limb encloses otch

32 ... side portion is extended flap

33 ... mechanical engagement formula button parts

The specific embodiment

Below, with reference to accompanying drawing embodiments of the present invention are described in detail.

Fig. 1 is the finished product state outside drawing of Breeches typedisposable diaper 1 of the present invention, and Fig. 2 is its expanded view, Fig. 3 be the III-III of Fig. 2 to view, Fig. 4 is the IV-IV alignment view of Fig. 2.The adhesive portion position is represented with * labelling in the position that needs at accompanying drawing.

As shown in the drawing, this Breeches type disposable diaper 1 (the following diaper that only is called), it is the diaper of following structure: load 20 outside the outer surface side of absorbentmain body 10 arranges, absorbentmain body 10 is established theabsorber 13 that is made of cotton official form for filing a lawsuit slurry etc. by folder between theleakage prevention sheet 12 that constitutes at the liquidpermeability surface patch 11 that is made of non-woven fabrics etc. and polyethylene etc. and is formed.

Above-mentionedouter load 20 has the waist elasticityextensible member 25 of configuration around above-mentioned waist opening portion ..., 26 ..., and on the sheet F of predecessor and back body sheet B the empty along the vertical direction standard width of a room in an old-style house every and a plurality of waistline elastictelescopic parts 27 of along continuous straight runs configuration ..., 28 ... in the both sides that engage the above-mentioned sheet F of predecessor and back body sheet B, have the side portion of extending laterally from above-mentionedjunction surface 30,31 and extendflap 32, and have the mechanical engagementformula button parts 33 that can fasten with the sheet F of predecessor outer surface in the front face side that this side portion is extendedflap 32.

Below, the structure of above-mentioned absorbentmain body 10 andouter load 20 and assembled configuration thereof and manufacture method are described in order.

(structure of absorbent main body 10)

Absorber 13 uses flat shape roughly to be square in illustrated example and the structure that is shaped, and its width dimensions is to be contacted with not make wearer's feel to harden width dimensions of sensation between thigh.Thisabsorber 13 utilizescrape paper 14 to center on for the diffusibility of the body fluid after improving shape retention and seeing through liquid permeability surface patch 11.Preferably can reduce the air bells laid absorber of volume as above-mentionedabsorber 13.

As the liquidpermeability surface patch 11 that covers above-mentionedabsorber 13 face side (skin contact surface side), be fit to use the non-woven fabrics of porose or atresia or porous plastic sheet etc.As the former material fiber that constitutes non-woven fabrics, for example except olefines such as polyethylene or polypropylene, polyesters, synthetic fibers such as polyamide-based, can also be natural fibers such as regenerated fibers such as artificial silk, ammonia copper wire, cotton, can use the non-woven fabrics that obtains by suitable processing method such as spun laced process, spun-bond process, heat viscosity method, meltblown, needle point method.In these processing methods, the advantage of spun laced process is to be imbued with flexibility, drapability, and the advantage of heat viscosity method is bulk, soft.Form under the situation of a plurality of open-works at liquidpermeability surface patch 11, urine etc. can absorb rapidly, and dry and comfortable property is good.Above-mentioned liquidpermeability surface patch 11 is involved in the side edge part ofabsorber 13 and extends to the inner face side ofabsorber 13.

Cover theleakage prevention sheet 12 of the inner face side (non-skin contact surface side) of above-mentionedabsorber 13, use opaque liquid plastic sheets such as polyethylene or polypropylene, but in the last few years from preventing that vexed wet angle from tending to use the material with poisture-penetrability.After this water proof/poisture-penetrability thin slice for example uses in the olefin resins such as polyethylene, polypropylene the melting mixing inorganic filling material and forms thin slice, by extending the little porous thin slice that obtains to single shaft or biaxially oriented.Because the unporforated film phase specific rigidity identical with sheet thickness reduces, thereby wins aspect flexibility.

On the other hand, form thefold non-woven fabrics 15 of three-dimensional fold BS, as shown in Figure 3 and Figure 4, use the non-woven fabrics that forms double-layer tablet by turning back, the side edge part of theabsorber 13 that will be involved in by above-mentioned liquidpermeability surface patch 11 further from it side be involved in, extend to the inner face side ofabsorber 13 and bonding.More specifically, above-mentionedfold non-woven fabrics 15, length direction pars intermedia at as shown in Figure 3 diaper, stay three-dimensional fold BS and form part, make from the width pars intermedia to absorber the scope of 13 inner face side bonding by hot-melt adhesive etc., and, end before and after length direction, as shown in Figure 4, be that interval from above-mentioned width pars intermedia to the opposite side ora terminalis is bonding in the scope of the inner face side that reachesabsorber 13, and, with the partially folded upper part atabsorber 13 that forms above-mentioned three-dimensional fold BS and bonding by hot-melt adhesive etc.

Inside at the fold non-woven fabrics 15 that forms by above-mentioned double-layer tablet non-woven fabrics, many wire elastic telescopic parts 16,16 partly are set erecting front ... and the position arranges wire elastic telescopic parts 17 near the side edge part of absorber 13, and then at the inner face sidepiece of absorber 13 wire elastic telescopic parts 18 is set.Above-mentioned leading section wire elastic telescopic parts 16,16 ... be mainly used in making from the outstanding non-woven fabrics of absorber side edge part by its elastic telescopic power and partly erect and form three-dimensional fold BS, shown in the finished product state figure as shown in Figure 5, above-mentioned wire elastic telescopic parts 17,18 mainly utilize its elastic telescopic power to make the lateral curvature of absorber 13, and utilize the sidepiece of absorber 13 to constitute the base end side part of three-dimensional fold BS.The height H L that erects of the absorber 13 from above-mentioned bending section to the absorber lateral margin is 5～30mm, is preferably 20～30mm.Above-mentioned three-dimensional height H L is difficult to make the absorber lateral curvature owing to too short, and can not guarantees the sufficient adaptability of relative skin during less than 5mm.And, surpass 30mm if erect height H L, it is long then to erect length, and generation can not make the problem of its bending etc. effectively.

Above-mentionedleakage prevention sheet 12 enters intofold non-woven fabrics 15 inside of above-mentioned double-deck lamellar, as shown in Figure 5, and at the lower end side formation leakproof wall of three-dimensional fold BS.As thisleakage prevention sheet 12, the sort of opaque material that preferably uses the brown of defecation or urine etc. can not manifest.Handle as opacification, be adapted at adding in the plastics pigment or packing material and filmings such as calcium carbonate, titanium oxide, zinc oxide, white carbon, clay, Talcum, barium sulfate.

As above-mentioned wire elastictelescopic parts 16～18, can adopt raw materials such as normally used phenylethylene rubber, olefines rubber, urethanes rubber, ester rubber, polyurethane, polyethylene, polystyrene, SB, silicon, polyester.And, in order to be difficult to see from the outside, preferably with below the rugosity 925dtex, the specification setting of tension force 150～350%.In addition, replace above-mentioned wire elastic telescopic parts, also can adopt the banded elastic telescopic parts with certain width.

The raw material fiber that constitutes above-mentionedfold non-woven fabrics 15 is also same with above-mentioned liquidpermeability surface patch 11, except olefines such as polyethylene or polypropylene, polyesters, synthetic fibers such as polyamide-based, can also be natural fibers such as regenerated fibers such as artificial silk, ammonia copper wire, cotton, can use the non-woven fabrics that obtains by suitable processing method such as spun-bond process, heat viscosity method, meltblown, needle point method, vexed wet in order to prevent especially, preferred employing has suppressed weight per unit area and has made the non-woven fabrics that aeration is good.And then, for above-mentionedfold non-woven fabrics 15, in order to prevent seeing through of urine, and prevent inflammation, improve the sense of touch (dry feeling) to skin, it is desirable to adopt the water-proofing treatment non-woven fabrics that has applied silicon class, metal wax class, alkyl Chlorizate chromium (alkyl chromic chloride) class waterproofing agent etc.

(structure of outer load 20)

Outer load 20 is the two-layer nonwoven sheet that is made of upper stratanon-woven fabrics 20A and thenon-woven fabrics 20B of lower floor as Fig. 2 and shown in Figure 6, and the various elastic telescopic parts of configuration between upper stratanon-woven fabrics 20A and thenon-woven fabrics 20B of lower floor are to give retractility.Flat shape is by being used for enclosingotch 29 at the lower limb of pars intermedia formation leg opening, the similar hourglass shape of whole formation.

Outside of the present invention in theload 20, as above-mentioned elastomeric element, in expansion shape shown in Figure 2, have and be configured in above-mentionedleg opening part 21,23 waist elasticityextensible member 25 ..., 26 ... the empty along the vertical direction standard width of a room in an old-style house every and along continuous straight runs be configured in a plurality of waistline elastictelescopic parts groups 27 on thewaistline 22,24 of the sheet F of predecessor and back body sheet B ..., 28 ...

Above-mentioned waist elasticityextensible member 25 ..., 26 ... be engage in the side portion engagement range of the sheet F of predecessor and back body sheet B, the empty along the vertical direction standard width of a room in an old-style house is every near many line rubber-like elasticity parts that are configured in the waist opening edge, by applying contractility in the mode around the waist of tightening health and diaper being worn on the health.This waist elasticityextensible member 25 ..., 26 ... in illustrated example, use line rubber, but for example also can use banded extensible member.

Above-mentioned waistline elastictelescopic parts 27 ..., 28 ... be in the side portion engagement range, roughly cross over except the scope of top to the bottom of waist and the overhead standard width of a room in an old-style house of above-below direction every and the elastomeric elastic telescopic parts of line of along continuous straight runs configuration, the waistline part of the sheet F of predecessor and back body sheet B is applied the contractility of horizontal direction respectively, diaper is close on the health.At this, above-mentioned waist elasticityextensible member 25 ..., 26 ... with waistline elastictelescopic parts 27 ..., 28 ... the border not necessarily want clear and definite.For example, the empty along the vertical direction standard width of a room in an old-style house every and along continuous straight runs be configured in the elastomeric element on the sheet F of predecessor and the back body sheet B, even specific quantity not, as long as some roots of upper side work as waist elastic members, remaining elastomeric element works as the waistline elastomeric element and gets final product.

And, above-mentioned waistline elastictelescopic parts 27 ..., 28 ... can dispose continuously in the mode of crossing on the absorbentmain body 10, but preferably as shown in the figure, in order further to prevent the contraction ofabsorber 13, the elastic telescopic parts that cross absorbentmain body 10 can be cut off, make it discontinuous.

Discontinuousization of elastic telescopic parts, TOHKEMY 2000-26015 communique for example, shown in the TOHKEMY 2002-273808 communique, can utilize following method: outside various elastomeric elements are configured on theload 20 after, make outer load by between embossing cutting roller and the pinch roll, utilize pressurization or the heating of above-mentioned embossing cutting roller, will be present in elastomeric element in the prescribed limit narrow fritter disconnected.

Outside above-mentioned in theload 20, the finished width L of back body sheet B_BFinished width L than the sheet F of predecessor_FGreatly, on above-mentioned back body sheet B, has the sideportion extension flap 32,32 that extends laterally from theheated sealant portion 30 that engages the sheet F of predecessor and back body sheet B, and, extend on theflap 32 in above-mentioned side portion, on the one side as the front face side under the finished product state, have the mechanical engagementformula button parts 33 that can fasten with the sheet F of predecessor outer surface.The outstanding length (K) that above-mentioned side portion is extendedflap 32 is 10～50mm, is preferably 15～30mm.

Above-mentioned mechanical engagementformula button parts 33, face side at thefastening base material 33a of plastics, polyethylene lamination non-woven fabrics, non-woven fabrics, paper etc. is provided withhook part 33b, above-mentionedhook part 33b for example is made of the fastening piece of " レ " word shape, " J " word shape, umbrella, " T " word shape etc., and the outer surface (thenon-woven fabrics 20B of lower floor) ofexternal load 20 fastens mutually.And above-mentioned mechanical engagementformula button parts 33 also can be pasted target band (female side is buckled) separately and fasten thereon on the sheet F of predecessor.Above-mentioned side portion is extendedflap 32 parts, and (before using) is folding to the inside under finished product state, engages with the outer surface ofouter load 20.

Outside above-mentioned on theload 20, for above-mentioned waistline elastictelescopic parts 27 ..., 28 ... it is desirable to, will be configured in the waistline elastictelescopic parts 28,28 of back body sheet B side ... contractility set less than the waistline elastictelescopic parts 27,27 that are configured in the sheet F of predecessor side ... contractility.By Tension Difference is set like this, under the state before use, because the waistline elastictelescopic parts 27,27 of the sheet F of predecessor side ... contractility high relatively, thereby above-mentioned side portion is extendedflap 32 and is become towards inboard and operation easily.And, when wearing state and begin to carry out accommodation, because waistline elastictelescopic parts 28,28 that will back body sheet B ... contractility set relatively lowly, thereby pinch easily that above-mentioned side portion is extendedflap 32 and to the sheet F of predecessor side tractive.

(assembling of diaper)

Above-mentioned absorbentmain body 10 andouter load 20 are bonded in absorbentmain body 10 one by bonding agents such as hot melts the upper surface side ofouter load 20 as shown in Figure 6.Then, absorbentmain body 10 andouter load 20 turn back, folding along fore-and-aft direction with lines S, utilize hot melt to apply or hot-melt adhesive etc. with thejunction surface 31 of the sheet F of predecessor, 31 and thejunction surface 30,30 of back body sheet B engage, thereby be assembled into Breeches type disposable diaper shown in Figure 1.

(manufacturing of diaper)

Fig. 7 is to be assembling procedure figure under the crossing current mode of diaper width with the production line direction.Outside emitting, in the process of the serialgram ofload 20, will enclosetangent line 36 along oval-shaped lower limb as the part between thigh by roller sickle etc. and cut out.Afterwards, cross at the suitable position of side portion of the back body sheet B of the upside that enclosestangent line 36 as lower limb and to cut off preset lines and paste two mechanical engagementformula button parts 33,33, and in the mode of crossing over above-mentioned elliptoid cutouts by the stacked absorbentmain body 10 of hot-melt adhesive, 10.Thereafter, between absorbentmain body 10,10, with predecessor's sheet F side at finished width L_FAfter the position cuts off, byflap 34 predecessor's sheet F side is turned back, by hot melt apply or hot-melt adhesive etc. with thejunction surface 31 of the sheet F of predecessor, 31 and after thejunction surface 30,30 of back body sheet B engages, at the central cutout of two mechanical engagementformula button parts 33,33, to obtain Breeches typedisposable diaper 1.

Then, second example of manufacture method is represented in Fig. 8.At first, outside emitting, in the process of the serialgram of load 20, utilize roller sickle etc. will to cut out as the part between the thigh along oval-shaped waist elasticity extensible member 26.Afterwards, cross over and cut off preset lines at two mechanical engagement formula button parts 33,33 of the suitable position stickup of side portion of the back body sheet side of the upside that encloses tangent line 36 as lower limb, and utilize the stacked absorbent main body 10 of hot-melt adhesive, 10 in the mode of crossing over above-mentioned oval-shaped cutouts.Thereafter, between absorbent main body 10,10, after the middle position 35 of above-mentioned cutouts cuts off the sheet F of predecessor, by flap 34 predecessor's sheet F side is turned back, by hot melt apply or hot-melt adhesive etc. with the junction surface 31 of the sheet F of predecessor, 31 and after the junction surface 30,30 of back body sheet B engages, at the central cutout of two mechanical engagement formula button parts 33,33, to obtain Breeches type disposable diaper 1.In this case, engage the junction surface 31,31 and the junction surface 30 of back body sheet B, of the above-mentioned sheet F of predecessor at 30 o'clock utilize hot melt to apply or hot-melt adhesive etc., so that the junction surface 30 involutory modes in the junction surface 31 of the sheet F of predecessor and above-mentioned mechanical engagement formula button parts 33 outsides stagger phase place and engage.

And then, the 3rd example of manufacture method as shown in Figure 9, in above-mentioned second example, engage thejunction surface 31,31 and thejunction surface 30 of back body sheet B, of the above-mentioned sheet F of predecessor at 30 o'clock utilize hot melt to apply or hot-melt adhesive etc., between up and down, eliminate phase contrast, in this case, by the waistline elastictelescopic parts 27,27 with predecessor's sheet side ... contractility set higherly, make the frame section of the sheet F of predecessor extend the flap contraction, mechanical engagementformula button parts 33 are exposed.

Yet, in the above-described embodiments, the suitable position of side portion leap cut-out preset lines in back body sheet B side is pasted two mechanical engagementformula button parts 33,33, but as shown in figure 10, also can cut into half after crossing over 1 mechanical engagementformula button parts 33 of cut-out preset lines stickup.In this case, can in the stickup operation of mechanical engagementformula button parts 33, once finish, can shorten manufacturing process.

(second embodiment)

Then, externally second embodiment ofload 20 11 describes in detail with reference to the accompanying drawings.

Outer load 20 as shown in Figure 11, in above-mentioned back body sheet B, make the side portion of extending laterally from the heated sealant portion 30,31 that engages the sheet F of predecessor and back body sheet B extend flap 32,32 and be segmenting structure up and down, extend on flap 32A and the hypomere side portion extension flap 32B in the epimere side portion the box-like button parts of above-mentioned mechanical clasps 33A, 33B are set respectively.Form above-mentioned segmenting structure by side portion being extended flap 32, can adjust adaptability around the waist opening portion and the adaptability of waistline individually, can further improve adaptability.In this case, extend the accommodation amount of flap 32A and hypomere side portion extension flap 32B in order to ensure above-mentioned epimere side portion, what expect is, extending the interval A of the suitable waistline in flap 32A position with the epimere side portion, extend the interval C of the suitable waistline in flap 32B position and do not exist side portion to extend on the waistline interval B of flap with the hypomere side portion, will be configured in the waist elasticity extensible member 26 (part that according to circumstances also comprises waistline elastic telescopic parts 28) on the interval A of above-mentioned waistline and be configured in waistline elastic telescopic parts 28 on the C of waistline interval, 28 ... contractility set less than the waistline elastic telescopic parts 28 that dispose on the above-mentioned waistline interval B, 28 ... contractility.That is, in that the waistline position that above-mentioned epimere side portion extension flap 32A and hypomere side portion are extended flap 32B is installed, by giving the degree of freedom of adjustment amount, obtain higher adaptability.

Extend on the flap in the side portion that forms above-mentioned segmenting structure up and down, as shown in figure 12, also can constitute side portion and extend the outstanding length of flap, tear withhole line 37,38 in the flap formation that the epimere side portion is extended betweenflap 32A and the hypomere side portion extension flap 32B.Shown in Figure 12 (A) to tear withhole line 37 are examples of the hole line that forms along horizontal direction, shown in Figure 12 (B) to tear withhole line 38 be to make a side long and form the example of distortion horizontal stroke " eight " word shape.When wearing, can tear above-mentioned tearing withhole line 37,38, make the epimere side portion extend thatflap 32A and hypomere side portion extend thatflap 32B intersects mutually and the intersection that engages is fixed.

(the 3rd embodiment)

In above-mentioned first and second embodiment, the front face side of extendingflap 32 in side portion is provided with the box-like button parts 33 of mechanical clasps that can fasten with predecessor's sheet outer surface, under the state of wearingdisposable diaper 1 to the adaptability of health under the not enough situation, pinch that above-mentioned side portion is extendedflap 32 and to the sheet F of predecessor side tractive, at random adjust adaptability by the outer surface that is engaged inouter load 20, but in order to carry out accommodation under the prostrate state of baby or the state of creeping, the rear side setting of extendingflap 32 in above-mentioned side portion can get final product with the mechanical engagementformula button parts 33 that back body sheet outer surface fastens.

Particularly, as shown in figure 13, outside above-mentioned, on theload 20, make the finished width L of the sheet F of predecessor_FFinished width L than back body sheet B_BWideer, on the above-mentioned sheet F of predecessor, be provided with the sideportion extension flap 32,32 that extends laterally from theheated sealant portion 31 that engages the sheet F of predecessor and back body sheet B, and, extend on theflap 32 one side as the rear side under the finished product state in above-mentioned side portion, the mechanical engagementformula button parts 33 that setting can fasten with back body sheet B outer surface.

In this case, with above-mentioned first embodiment on the contrary, for above-mentionedouter load 20, that expects is above-mentioned waistline elastictelescopic parts 27 ..., 28 ... the waistline elastictelescopic parts 28,28 of the sheet F of predecessor side will be configured in ... contractility set to such an extent that be lower than the waistline elastictelescopic parts 27,27 that are configured in back body sheet B side ... contractility.

(the 4th embodiment)

In above-mentioned first～the 3rd embodiment, 1 lamination sheets utilizing applying upper stratanon-woven fabrics 20A and thenon-woven fabrics 20B of lower floor to form constitutesouter load 20, but as shown in figure 14,outer load 20 also can form the structure that is separated into the outer load part GF of predecessor's sheet and the outer load part GB of back body sheet.

(the 5th embodiment)

In the various embodiments described above, side portion extendflap 32 the end width former state of the sheet F of predecessor is prolonged and form rectangular-shaped, but as shown in figure 15, also can be different shape.The flap shape is for example shown in Figure 15 (A), also can epimere sideportion extension flap 32A, hypomere side portion be extendedflap 32B and be formed step shape with two sections, also single side portion can be extendedflap 32 forms step-like, and then also can shown in Figure 15 (C), with two sections epimere sideportion extension flap 32A, hypomere side portion be extendedflap 32B and be formed mushroom.

(the 6th embodiment)

In the various embodiments described above, adjusting under the adaptive situation, pinch side portion under the state of medicated underpants and extendflap 32 forming, to predecessor's sheet side tractive and make on its outer surface that is engaged in outer load, still adjustment amount still is that nature can produce boundary in this case.Therefore, in order to enlarge adjustable scope, as Figure 16 and shown in Figure 17, can form not that side portion is extended the side end of the body sheet of a side of flap 32 (being the sheet F of predecessor in illustrated example) and in the inboard ofheated sealant portion 30, particularly be in the position between above-mentionedheated sealant portion 30 and the absorbentmain body 10, preferably arrange to tear near position above-mentionedheated sealant portion 30 inboard and usehole line 39.

In this case, by tearing above-mentioned tearing withhole line 39, remove being connected of the sheet F of predecessor and back body sheet B, just in time can make the sheet F of predecessor and back body sheet B be affixed on health with the main points of belt diaper after, above-mentioned side portion is extendedflap 32 to predecessor's sheet side tractive, be engaged in arbitrarily the position and wear.In this case, also can apply number, sign or design at the sheet F of predecessor, to extend the sign of the bonding station offlap 32 as above-mentioned side portion.

And, tearing when tearing withhole line 39 with above-mentioned, the end fixed solution that can worry waistline elastictelescopic parts 28,28 removes, produce drawing in of extensible member, therefore, as shown in figure 18, be desirably in above-mentioned inboard of tearing withhole line 39, for fixing waistline elastictelescopic parts 28,28 ... andside seal 40 is set.Thisside seal 40 can arrange along the vertical direction continuously, also can with waistline elastictelescopic parts 28,28 ... discontinuous setting as one man.

(the 7th embodiment)

And then, with tear tear withhole line 39 after, when wearing with the main points of belt diaper, for dress easily with adjust, shown in Figure 20 (inner face expanded view), also canbracelet 41,41 be set in the outer surface side of the sheet F of predecessor.In this case, side portion is extendedflap 32 preferably, makes longitudinal size short as shown in the figure, when wear, above-mentioned sideportion extension flap 32 passed thebracelet 41 of regulation after, be engaged in the outer surface of outer load 20.And, in this embodiment, also can be provided with mechanical engagementformula button parts 33 in the outer surface side (perhaps inner face side and outer surface side both sides) that side portion is extended flap 32.When face side arranges mechanical engagementformula button parts 33 outside, can be after passingbracelet 41 side portion be extendedflap 32 and turn back laterally and fix, can in dress, prevent coming off of mechanical engagementformula button parts 33 reliably.

(other embodiment)

(1) in the above-described embodiments, be the example of Breeches type disposable diaper, but can only omit the sheet F of predecessor that engages above-mentioned outer load and afterwards the both sides of body sheet B operation and obtain the product identical with so-called belt disposable diaper.In addition, belt disposable diaper in the past must still by practical the present invention, also can be made in what is called crossing current mode with the vertical stream mode manufacturing of what is called.

(2) in above-mentioned Breeches type disposable diaper, the elastic telescopic parts that are configured on theouter load 20 have waist elasticityextensible member 25 ..., 26 ... with the empty along the vertical direction standard width of a room in an old-style house on the sheet F of predecessor and back body sheet B every and a plurality of waistline elastictelescopic parts 27 of along continuous straight runs configuration ..., 28 ... two kinds, but also can dispose the elastic telescopic parts around the shank.

(3) in the above-described embodiments, back body sheet side portion byouter load 20 constitutes sideportion extension flap 32, paste mechanical engagementtype button parts 33 at this position, but also can make the sheet F of predecessor and back body sheet B is same widths, make bonding station than side portion lateral margin more in the inner part, paste mechanical engagementtype button parts 33 at the position of extending laterally than above-mentioned bonding station and at predecessor's sheet outer surface or back body sheet outer surface.

(4) in above-mentioned second embodiment, side portion is extended flap be divided into two sections in 32 minutes, still also can form three sections structures of epimere, stage casing, hypomere, paste mechanical engagementtype button parts 33 respectively thereon.

(5) in the above-described embodiments,outer load 20 is made of 1 thin slice, but also can be the outer load that is divided into two parts structure that is made of the outer load of predecessor's sheet side and the outer load of back body sheet.

(6) in above-mentioned first embodiment and second embodiment etc., sidepiece at back body sheet B arranges sideportion extension flap 32 and mechanical engagementformula button parts 33, tear withhole line 39 in the sidepiece setting of the sheet F of predecessor, in above-mentioned the 3rd embodiment, sidepiece at the sheet F of predecessor arranges sideportion extension flap 32 andbutton parts 33, tear withhole line 39 in the sidepiece setting of back body sheet B, but, also can sideportion extension flap 32,button parts 33 be set and tearusefulness hole line 39 at back body sheet B and the sheet F of predecessor.Like this, owing to can use equally in front and back, thereby when for example under the state that wearer's accumbency is fallen asleep, using, after adjusting size or tearing side portion with the hole line, buckle with the mechanical engagement formula again under the situation thatparts 33 retighten, no matter the wearer is prostrate state or the state of lying on the back, and does not have belt and inserts the health below and fixing inconvenience.

(7) in the various embodiments described above, form side portion in the both sides of back body sheet B and/or the sheet F of predecessor and extendflap 32,32, extendflap 32 but also can only form side portion in a side.In this case, when wearing, also accommodation can be carried out, and the number of components of the high mechanical engagementformula button parts 33 of material cost can be reduced.

Claims (5)

1. Breeches type disposable diaper, comprise the absorbent main body that contains absorber and be arranged on the outer load of the outer surface side of this absorbent main body, predecessor's sheet by engaging described outer load in both sides and afterwards the body sheet form the leg opening part of waist opening portion and pair of right and left, it is characterized in that

Described outer load has: be configured in around the described waist opening portion the waist elasticity extensible member and on predecessor's sheet and back body sheet the empty along the vertical direction standard width of a room in an old-style house every and a plurality of waistline elastic telescopic parts of along continuous straight runs configuration,

In the both sides that described predecessor sheet and back body sheet engage from waist opening portion to leg opening part, by constituting the outer load part of described back body sheet, the side portion that formation is extended laterally from the junction surface is extended flap, and the front face side of extending flap in these side portion is provided with the box-like button parts of mechanical clasps, constituting the side portion that pinches described back body sheet extends flap and is fastened on the outer surface of predecessor's sheet, and, partly form the side portion of extending laterally from described junction surface by the outer load that constitutes described predecessor sheet and extend flap, and the rear side of extending flaps in these side portion is provided with the box-like button parts of mechanical clasps, constitutes the side portion that pinches described predecessor sheet and extends flap and be fastened on the outer surface of back body sheet.

2. disposable diaper as claimed in claim 1, wherein, the junction surface that predecessor's sheet on the sidepiece of described predecessor sheet and back body sheet, described outer load and back body sheet engage in both sides and the position between the absorbent main body, be formed for separating predecessor's sheet and after tearing of body sheet use the hole line.

3. disposable diaper as claimed in claim 2 wherein, fixes waistline elastic telescopic parts by in described inboard of tearing with the hole line sealing being set.

4. disposable diaper as claimed in claim 1, wherein, described side portion is extended flap for cutting apart structure up and down, is respectively equipped with the box-like button parts of described mechanical clasps at the side portion extension flap of epimere side and hypomere side.

5. disposable diaper as claimed in claim 4 wherein, extends in the side portion of described epimere side and hypomere side and to be formed for separating described epimere side side portion between the flap and to extend flap and hypomere side side portion and extend tearing of flap and use the hole line.

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