CN112515860A - Breathable material for urine retention and preparation method of breathable material - Google Patents

Abstract

The invention discloses a breathable material for urine-retention, which comprises a composite surface layer, an anti-seepage layer, an absorption layer and a three-dimensional fabric positioned between the absorption layer and the composite surface layer, and also discloses a preparation method of the breathable material for urine-retention, which comprises the breathable material for urine-retention and also comprises the following steps: preparing a composite surface layer; preparing an anti-permeation layer; preparing an absorption layer; preparing a three-dimensional fabric; carry out the hotmelt according to the order from last to down with the compound surface course, the three-dimensional fabric, the absorbed layer and the prevention of seepage layer of preparation in proper order and bond to prepare ventilative material, on prior art's basis, improve the proportion of the ventilative material that the urine is not wet, thereby make ventilative material's gas permeability and travelling comfort obtain promoting, let the user have better use experience, still provide a preparation method for the ventilative material that the urine is not wet, the auxiliary comfort level that promotes ventilative material.

Description

Breathable material for urine retention and preparation method of breathable material

Technical Field

The invention relates to the technical field of sanitary materials, in particular to a breathable material for preventing urine from wetting.

Background

The diaper in the prior art adopts the PE film to prevent urine leakage, and the PE film has poor air permeability, can seriously affect the comfort and health of infants and users, and leads to red buttocks and the like.

Disclosure of Invention

The invention provides a breathable material for urine retention and a preparation method of the breathable material, aiming at solving the problem that a PE film influences the comfort of a user in the prior art.

The utility model provides a ventilative material for urine is not wet, includes composite surface layer, prevention of seepage permeable barrier, absorbed layer and is located the three-dimensional fabric between absorbed layer and the composite surface layer, composite surface layer is silk short-staple and polyolefin fibre and consolidates the complex through water thorn and makes, prevention of seepage permeable barrier comprises polypropylene filament fiber layer, the absorbed layer is that polymer water-absorbing resin and hot melt adhesive make.

The invention also provides a preparation method of the breathable material for urine retention, which comprises the following steps:

preparing a composite surface layer;

preparing an anti-permeation layer;

preparing an absorption layer;

preparing a three-dimensional fabric;

and sequentially carrying out hot glue bonding on the prepared composite surface layer, the three-dimensional fabric, the absorption layer and the anti-permeation layer from top to bottom to prepare the breathable material.

Wherein, the preparation of the composite surface layer comprises the following steps:

spraying a surfactant onto the silk fibers by using a sprayer for antistatic finishing, sealing for 24H, airing, and carding in an environment with relative humidity more than 85%;

laying a silk fiber net on the polyolefin fiber, superposing the silk fiber net, and then entering a spunlace system, wherein the silk fiber net is kept on the surface during spunlace so as to finish spunlace of the silk short fiber and polyolefin fiber composite fabric;

then sending the composite fabric into a container filled with a hydrophilic reagent for hydrophilic finishing;

and finally, drying the composite fabric at the temperature of 95-105 ℃ to obtain the composite surface layer.

Wherein the surfactant is TF629 surfactant.

Wherein the silk short fiber has a density of 0.6-1.6 dtex.

Wherein, the preparation of the anti-seepage layer comprises the following steps:

preparing a fiber layer, arranging polypropylene filament fibers to form at least two polypropylene filament fiber layers, and hot-rolling and compounding the prepared polypropylene filament fiber layers to prepare the fiber layer;

and drying and printing the prepared fiber layer to obtain the anti-seepage layer.

Wherein, the preparation of the absorption layer comprises the following steps:

adding an aqueous sodium hydroxide solution to an aqueous solution of an acrylic monomer, and adding a crosslinking agent and a polymerization initiator to cause a polymerization reaction under the condition of applying microwaves;

obtaining a polymerization reactant after the polymerization reaction is finished at a preset temperature;

raising the temperature by 10-20 ℃ to promote the curing of the polymerization reactant to obtain polymer gel;

performing microwave irradiation and heat preservation on the polymer gel again to prepare gel-state high-molecular water-absorbent resin;

and mixing the high-molecular water-absorbent resin with the hot melt adhesive to prepare the absorption layer.

Wherein the preset temperature is 100-140 ℃.

The invention has the beneficial effects that: on the basis of the prior art, the proportion of the breathable material for the diaper is improved, so that the breathability and the comfort of the breathable material are improved, a user has better use experience, the preparation method for the breathable material for the diaper is further provided, and the comfort of the breathable material is improved in an auxiliary mode.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural flow chart of the manufacturing steps of a breathable material for urine-proof according to the invention.

FIG. 2 is a schematic structural flow chart of the steps for manufacturing the composite surface layer of the breathable material for urine-proof absorbent articles according to the present invention.

Fig. 3 is a schematic structural flow diagram illustrating the steps of manufacturing an anti-permeability layer for a urine-impermeable breathable material according to the present invention.

FIG. 4 is a schematic structural flow chart showing the steps of manufacturing an absorbent layer of breathable material for urine-retention according to the present invention.

FIG. 5 is a schematic structural flow chart showing the steps of manufacturing a three-dimensional woven fabric for a diaper breathable material according to the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to 5, the present invention provides a technical solution:

the utility model provides a ventilative material for urine is not wet, includes composite surface layer, prevention of seepage permeable barrier, absorbed layer and is located the three-dimensional fabric between absorbed layer and the composite surface layer, composite surface layer is silk short-staple and polyolefin fibre and consolidates the complex through water thorn and makes, prevention of seepage permeable barrier comprises polypropylene filament fiber layer, the absorbed layer is that polymer water-absorbing resin and hot melt adhesive make.

The invention also provides a preparation method of the breathable material for urine retention, which comprises the following steps:

s101, preparing a composite surface layer;

s102, preparing an anti-permeation layer;

s103, preparing an absorption layer;

s104, preparing a three-dimensional fabric;

s105, sequentially carrying out hot glue bonding on the prepared composite surface layer, the three-dimensional fabric, the absorption layer and the anti-permeation layer from top to bottom to prepare the breathable material.

Further, the preparation of the composite surface layer comprises the following steps:

s201, spraying a surfactant onto silk fibers by using a sprayer for antistatic finishing, sealing for 24H, airing, and carding in an environment with relative humidity more than 85%;

s202, laying a silk fiber net on polyolefin fibers, overlapping, entering a spunlace system, and keeping the silk fiber net on the silk fiber net during spunlacing so as to finish spunlacing of the silk short fiber and polyolefin fiber composite fabric;

s203, sending the composite fabric into a container filled with a hydrophilic reagent for hydrophilic finishing;

s204, finally, drying the composite fabric at the temperature of 95-105 ℃ to obtain the composite surface layer.

Further, the preparation of the permeation prevention layer comprises the following steps:

s301, preparing a fiber layer, arranging polypropylene filament fibers to form at least two polypropylene filament fiber layers, and hot rolling and compounding the prepared polypropylene filament fiber layers to obtain the fiber layer;

s302, drying and printing the prepared fiber layer to obtain the anti-seepage layer.

Further, the preparation of the absorption layer comprises the following steps:

s401, adding a sodium hydroxide aqueous solution into an aqueous solution of an acrylic monomer, and adding a cross-linking agent and a polymerization initiator to perform a polymerization reaction under the condition of applying microwaves;

s402, obtaining a polymerization reactant after the polymerization reaction is finished at the preset temperature;

s403, raising the temperature by 10-20 ℃ to promote curing of the polymerization reactant to obtain polymer gel;

s404, performing microwave irradiation and heat preservation on the polymer gel again to prepare gel-state high-molecular water-absorbent resin;

s405, mixing the high-molecular water-absorbent resin with a hot melt adhesive to prepare the absorption layer.

Further, the preparation of the three-dimensional fabric comprises the following steps:

s501, weaving continuous first warps and first wefts in a plain weave mode to prepare a top surface;

s502, weaving the continuous second warp threads and the second weft threads in a plain weave mode to prepare a bottom face;

s503, preparing the top surface and the bottom surface by a plurality of connecting wires to prepare the three-dimensional fabric.

Specific example 1:

preparing a composite surface layer, spraying TF629 onto silk fibers with the specification of 0.6dtex by using a sprayer for antistatic finishing, sealing for 24H, airing, and carding in an environment with the relative humidity of 90%;

the method comprises the following steps of (1) flatly paving a silk fiber net on polyolefin fibers with the specification of 1.6dtex, superposing the silk fiber net and the polyolefin fibers, and then entering a spunlace system, wherein the silk fiber net is kept on the surface during spunlace so as to finish spunlace of the silk short fiber and polyolefin fiber composite fabric, the speed of a spunlace net conveying curtain is 12m/min, and the acting distance of a water needle is 12 mm;

then the composite fabric is sent to a container filled with a hydrophilic reagent for hydrophilic finishing, and the aim of coating the hydrophilic reagent on the composite fabric is fulfilled by using an anastomosis roll coating method;

finally, drying the composite fabric at the temperature of 95 ℃ to prepare a composite surface layer,

preparing an anti-seepage layer, preparing a fiber layer, arranging polypropylene filament fibers to form at least two polypropylene filament fiber layers with the gram weight of 6gsm, and performing hot rolling compounding on the prepared polypropylene filament fiber layers, wherein the hot rolling temperature is controlled at 125 ℃ to prepare the fiber layer;

drying and printing the prepared fiber layer to prepare the anti-seepage layer,

preparing an absorption layer, adding a sodium hydroxide aqueous solution to an acrylic acid aqueous solution, and adding a cross-linking agent and a polymerization initiator to perform polymerization reaction under the condition of applying 200mj/cm2 microwaves;

obtaining a polymerization reactant after the polymerization reaction is finished at 100 ℃;

raising the temperature by 10 ℃ to promote the curing of the polymerization reactants to obtain polymer gel;

performing microwave irradiation and heat preservation on the polymer gel for 6 minutes again to prepare gel-state high-molecular water-absorbent resin;

mixing the high molecular water-absorbing resin with hot melt adhesive to prepare an absorption layer,

preparing a three-dimensional fabric, and weaving continuous first warps and first wefts in a plain weave mode to prepare a top surface;

weaving the continuous second warps and the second wefts in a plain weave mode to prepare the bottom face;

preparing a three-dimensional fabric by using a plurality of connecting wires to prepare a top surface and a bottom surface, wherein the first warp and the second warp are both tensile deformation wires, and the first weft and the second weft are both fully drawn wires;

and sequentially carrying out hot glue bonding on the prepared composite surface layer, the three-dimensional fabric, the absorption layer and the anti-permeation layer from top to bottom to prepare the breathable material.

Specific example 2:

preparing a composite surface layer, spraying TF629 onto 1.6dtex silk fibers by using a sprayer for antistatic finishing, sealing for 24H, airing, and carding in an environment with relative humidity of 95%;

the method comprises the following steps of (1) flatly paving a silk fiber net on polyolefin fibers with the specification of 1.8dtex, superposing the silk fiber net and the polyolefin fibers, and then entering a spunlace system, wherein the silk fiber net is kept on the surface during spunlace so as to finish spunlace of the silk short fiber and polyolefin fiber composite fabric, the speed of a spunlace net conveying curtain is 14m/min, and the action distance of a water needle is 11 mm;

then the composite fabric is sent to a container filled with a hydrophilic reagent for hydrophilic finishing, and the aim of coating the hydrophilic reagent on the composite fabric is fulfilled by using an anastomosis roll coating method;

finally, drying the composite fabric at 100 ℃ to prepare a composite surface layer,

preparing an anti-seepage layer, preparing a fiber layer, arranging polypropylene filament fibers to form at least two polypropylene filament fiber layers with the gram weight of 6gsm, and performing hot rolling compounding on the prepared polypropylene filament fiber layers, wherein the hot rolling temperature is controlled at 125 ℃ to prepare the fiber layer;

drying and printing the prepared fiber layer to prepare the anti-seepage layer,

preparing an absorption layer, adding an aqueous sodium hydroxide solution to an aqueous acrylic acid solution, and adding a cross-linking agent and a polymerization initiator to perform polymerization reaction under the condition of applying 700mj/cm2 microwaves;

obtaining a polymerization reactant after the polymerization reaction is finished at 110 ℃;

raising the temperature by 10 ℃ to promote the curing of the polymerization reactants to obtain polymer gel;

performing microwave irradiation and heat preservation on the polymer gel for 10 minutes again to prepare gel-state high-molecular water-absorbent resin;

mixing the high molecular water-absorbing resin with hot melt adhesive to prepare an absorption layer,

preparing a three-dimensional fabric, and weaving continuous first warps and first wefts in a plain weave mode to prepare a top surface;

weaving the continuous second warps and the second wefts in a plain weave mode to prepare the bottom face;

preparing a three-dimensional fabric by using a plurality of connecting wires to prepare a top surface and a bottom surface, wherein the first warp and the second warp are fully drawn yarns, and the first weft and the second weft are drawn textured yarns;

and sequentially carrying out hot glue bonding on the prepared composite surface layer, the three-dimensional fabric, the absorption layer and the anti-permeation layer from top to bottom to prepare the breathable material.

By contrast, the breathable material obtained in example 2 has better absorption properties and better comfort in contact with the user.

On the basis of the prior art, the structure and the formula of the breathable material are improved, so that the breathable material has better breathability and urine absorbability, a user has better comfort, and the applicability of the paper diaper is improved.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (8)

1. The utility model provides a ventilative material for urine is not wet which characterized in that, includes compound surface course, prevention of seepage permeable course, absorbed layer and is located the three-dimensional fabric between absorbed layer and the compound surface course, compound surface course is silk short-staple and polyolefin fibre and consolidates the complex through water thorn and makes, prevention of seepage permeable course comprises polypropylene filament fiber layer, the absorbed layer is that polymer water-absorbent resin and hot melt adhesive make.

2. A method for preparing a breathable material for urine-retention comprising a breathable material for urine-retention according to claim 1, characterized by further comprising the steps of:

preparing a composite surface layer;

preparing an anti-permeation layer;

preparing an absorption layer;

preparing a three-dimensional fabric;

and sequentially carrying out hot glue bonding on the prepared composite surface layer, the three-dimensional fabric, the absorption layer and the anti-permeation layer from top to bottom to prepare the breathable material.

3. The method for preparing the breathable material for urine resistance according to claim 2, wherein the step of preparing the composite surface layer comprises the following steps:

spraying a surfactant onto the silk fibers by using a sprayer for antistatic finishing, sealing for 24H, airing, and carding in an environment with relative humidity more than 85%;

laying a silk fiber net on the polyolefin fiber, superposing the silk fiber net, and then entering a spunlace system, wherein the silk fiber net is kept on the surface during spunlace so as to finish spunlace of the silk short fiber and polyolefin fiber composite fabric;

then sending the composite fabric into a container filled with a hydrophilic reagent for hydrophilic finishing;

and finally, drying the composite fabric at the temperature of 95-105 ℃ to obtain the composite surface layer.

4. The method of claim 3, wherein the surfactant is TF629 surfactant.

5. The method for preparing the breathable material for urine resistance according to claim 4, wherein the silk short fiber has a density of 0.6 to 1.6 dtex.

6. The method for preparing a breathable material for urine-blocking according to claim 5, wherein said preparing a permeation-preventing layer comprises the steps of:

preparing a fiber layer, arranging polypropylene filament fibers to form at least two polypropylene filament fiber layers, and hot-rolling and compounding the prepared polypropylene filament fiber layers to prepare the fiber layer;

and drying and printing the prepared fiber layer to obtain the anti-seepage layer.

7. The method for preparing a breathable material for urine resistance according to claim 6, wherein the step of preparing the absorbent layer comprises the steps of:

adding an aqueous sodium hydroxide solution to an aqueous solution of an acrylic monomer, and adding a crosslinking agent and a polymerization initiator to cause a polymerization reaction under the condition of applying microwaves;

obtaining a polymerization reactant after the polymerization reaction is finished at a preset temperature;

raising the temperature by 10-20 ℃ to promote the curing of the polymerization reactant to obtain polymer gel;

performing microwave irradiation and heat preservation on the polymer gel again to prepare gel-state high-molecular water-absorbent resin;

and mixing the high-molecular water-absorbent resin with the hot melt adhesive to prepare the absorption layer.

8. The method for preparing a breathable material for urine resistance according to claim 7, wherein the preset temperature is 100-140 ℃.

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