CN113789672A - Polyurethane synthetic leather for outdoor sports leisure shoes and preparation method thereof - Google Patents

Polyurethane synthetic leather for outdoor sports leisure shoes and preparation method thereof Download PDF

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Publication number
CN113789672A
CN113789672A CN202111108829.XA CN202111108829A CN113789672A CN 113789672 A CN113789672 A CN 113789672A CN 202111108829 A CN202111108829 A CN 202111108829A CN 113789672 A CN113789672 A CN 113789672A
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parts
semi
finished product
polyurethane
preparation
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CN113789672B (en
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杜东旭
赵伟栋
邢高瞻
沈宏武
陈绪珍
程艳西
黄万里
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Anhui Anli Material Technology Co Ltd
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Anhui Anli Material Technology Co Ltd
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • D06N3/145—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes two or more layers of polyurethanes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0043—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by their foraminous structure; Characteristics of the foamed layer or of cellular layers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0059—Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00—Properties of the materials
    • D06N2209/12—Permeability or impermeability properties
    • D06N2209/121—Permeability to gases, adsorption
    • D06N2209/123—Breathable
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00—Properties of the materials
    • D06N2209/12—Permeability or impermeability properties
    • D06N2209/126—Permeability to liquids, absorption
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2211/00—Specially adapted uses
    • D06N2211/12—Decorative or sun protection articles
    • D06N2211/28—Artificial leather

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Abstract

The invention discloses polyurethane synthetic leather for outdoor sports leisure shoes and a preparation method thereof, wherein the preparation method comprises the following steps: providing base cloth, wherein the base cloth is a single-side porous tissue H flannelette base; coating aqueous polyurethane slurry on the surface of the base fabric along the wool, and performing gradient heating and drying to obtain a first semi-finished product, wherein the aqueous polyurethane slurry contains a CMC material; padding the first semi-finished product to obtain a second semi-finished product; and carrying out surface treatment on the second semi-finished product to obtain the polyurethane synthetic leather for the outdoor sports leisure shoes. The preparation method is environment-friendly in process, and the obtained outdoor sports casual shoe leather has excellent moisture permeability and air permeability.

Description

Polyurethane synthetic leather for outdoor sports leisure shoes and preparation method thereof
Technical Field
The invention belongs to the technical field of polyurethane synthetic leather, and particularly relates to polyurethane synthetic leather for outdoor sports casual shoes and a preparation method thereof.
Background
The outdoor sports casual shoe leather needs to meet the requirements of various physical indexes of the traditional shoe leather, and needs to have moisture and air permeability due to the outdoor environment and the wearing particularity.
At present, the conventional outdoor sports leisure shoes are usually produced by adopting synthetic leather made of an oil-based polyurethane coating and matching with fabrics, and have poor moisture permeability and air permeability and no environmental protection property.
Disclosure of Invention
In view of the above, the invention needs to provide a polyurethane synthetic leather for outdoor sports casual shoes and a preparation method thereof, the polyurethane synthetic leather for outdoor sports casual shoes forms a waterborne polyurethane coating on the surface of a base fabric, and a plurality of uniform and regularly-arranged microporous structures which are communicated up and down are formed inside and on the surface of the waterborne polyurethane coating, so that the obtained outdoor sports casual shoes leather has excellent moisture permeability and air permeability.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a preparation method of polyurethane synthetic leather for outdoor sports leisure shoes, which comprises the following steps:
providing base cloth, wherein the base cloth is a single-side porous tissue H flannelette base;
coating aqueous polyurethane slurry on the surface of the base fabric along the wool, and performing gradient heating and drying to obtain a first semi-finished product, wherein the aqueous polyurethane slurry contains a CMC material;
padding the first semi-finished product to obtain a second semi-finished product;
and carrying out surface treatment on the second semi-finished product to obtain the polyurethane synthetic leather for the outdoor sports leisure shoes.
Furthermore, the single-side porous tissue H flannelette base is a fabric with a porous tissue structure, which is formed by weaving special-shaped fibers with the special-shaped degree of more than 60, and the thickness of the fabric is 0.8-0.9 mm.
Further, the aqueous polyurethane slurry is prepared from 80-100 parts of deionized water, 20-40 parts of aqueous polyurethane, 4-6 parts of wetting penetrant, 3-6 parts of CMC material, 1-3 parts of foaming agent and 0-10 parts of aqueous color paste according to the mass parts;
the foaming density of the aqueous polyurethane slurry is 0.04-0.06g/cm3。
Furthermore, in the first semi-finished product, the thickness of the water-based polyurethane coating formed by gradient drying of the water-based polyurethane slurry is 0.3-0.5 mm.
Further, the gradient heating drying is completed by adopting a three-gradient oven, wherein the length of the first gradient oven is 20-25m, and the temperature is 50-80 ℃; the length of the second gradient oven is 20-25m, and the temperature is 80-100 ℃; the length of the third gradient oven is 15-20m, and the temperature is 100-130 ℃.
Further, the padding treatment process specifically comprises the following steps: the padding washing temperature is 70-90 ℃, the padding washing times are 10-15, and the drying temperature is 130-150 ℃.
Further, the surface treatment comprises polishing treatment and waterproof treatment.
Further, the polishing treatment process specifically comprises the following steps: the mesh number of the sand paper is 360-600 meshes, the rotating speed of the grinding wheel is 2000-3000r/min, and the grinding speed is 10-15 m/min.
Further, the waterproof treatment process specifically comprises the step of performing waterproof repair treatment on the surface by adopting waterproof slurry, wherein the number of surface rollers is 200-300 meshes, the surface speed is 10-15m/min, and the drying temperature is 80-100 ℃, wherein the waterproof slurry is prepared from 80-100 parts by mass of aqueous polyurethane resin, 0.5-1 part by mass of nano organic silicon waterproof auxiliary agent, 0.1-0.3 part by mass of emulsifying dispersant and 0-10 parts by mass of aqueous color paste.
The invention further provides polyurethane synthetic leather for outdoor sports and leisure shoes, which is prepared by adopting the preparation method of any one of the above.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the single-sided porous tissue H flannelette base is used as the base cloth, and the base cloth can ensure that the base material has good moisture permeability and air permeability; then coating a waterborne polyurethane coating containing a carboxymethyl cellulose CMC material on the surface of the base fabric, and simultaneously matching with a processing technology of gradient drying, forming a uniform and porous waterborne polyurethane film on the surface of the base fabric, so as to avoid cracks generated on the surface of the waterborne polyurethane due to rapid heating and uneven tension; then, the CMC material in the aqueous polyurethane slurry is removed through padding treatment, and a plurality of uniform and regularly-arranged vertically-through microporous structures are formed inside and on the surface of the aqueous polyurethane film, so that the polyurethane synthetic leather for the outdoor sports leisure shoes has excellent perspective and air permeability.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the specific embodiments illustrated. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The invention provides a preparation method of polyurethane synthetic leather for outdoor sports leisure shoes, which comprises the following steps:
providing base cloth, wherein the base cloth is a single-side porous tissue H flannelette base;
coating aqueous polyurethane slurry on the surface of the base fabric along the wool, and performing gradient heating and drying to obtain a first semi-finished product, wherein the aqueous polyurethane slurry contains a CMC material;
padding the first semi-finished product to obtain a second semi-finished product;
and carrying out surface treatment on the second semi-finished product to obtain the polyurethane synthetic leather for the outdoor sports leisure shoes.
The invention adopts the single-side porous tissue H flannelette base as the base cloth, and the perspective air permeability of the base cloth is preliminarily ensured due to the porous structure of the H flannelette base. The waterborne polyurethane slurry is coated on the surface of the base cloth, compared with the oil-based polyurethane slurry, the waterborne polyurethane slurry is more environment-friendly, but cracks are generated due to uneven tension easily caused by rapid heating of the waterborne polyurethane slurry, so that the drying process of gradient heating drying is adopted, cracks are avoided, and the integrity of the waterborne polyurethane coating is ensured. In addition, the CMC material is added into the waterborne polyurethane coating, and the CMC material is removed by padding treatment by utilizing the characteristic that the CMC material is dissolved in hot water at the later stage, so that a plurality of microporous structures which are uniformly and regularly arranged and are vertically communicated are formed inside and on the surface of the waterborne polyurethane film, and the obtained polyurethane synthetic leather for outdoor sports leisure shoes has excellent moisture permeability and air permeability. The surface of the polyurethane synthetic leather can be treated according to specific use environment requirements, so that the polyurethane synthetic leather can meet use requirements, such as waterproof performance requirements and the like.
According to the further scheme, the single-side porous tissue H flannelette base is a fabric with a porous tissue structure woven by profiled fibers with the profile degree larger than 60, and the profiled fibers have good moisture absorption and air permeability, so that the moisture absorption and air permeability of the polyurethane synthetic leather for the outdoor sports and leisure shoes are further improved. In general, the higher the profile degree of the fiber, the larger the specific surface area of the fiber, the better the moisture absorption and air permeability, so the profile fiber with the profile degree of more than 60 is preferably adopted herein, and more preferably, the profile degree of the profile fiber is between 65 and 80, so that on one hand, the excellent moisture absorption and air permeability performance is ensured, and on the other hand, the overall performance of the synthetic leather is balanced. The thickness of the single-sided porous tissue H flannel base is not particularly limited, and can be adjusted according to the thickness of the base cloth which is conventional in the art, and in one or more embodiments of the invention, the thickness is 0.8-0.9 mm.
In a further scheme, the aqueous polyurethane slurry generally comprises an aqueous polyurethane main material, necessary auxiliaries such as a foaming agent, and other performance-adjusting auxiliaries such as a wetting penetrant, color paste and the like, and can be the composition of the conventional aqueous polyurethane slurry in the field, and can be adjusted according to the specific physical property requirements of outdoor polyurethane synthetic leather, the composition of the aqueous polyurethane slurry is not particularly limited, as long as the aqueous polyurethane slurry contains a CMC material, and the air permeability of the polyurethane synthetic leather is obviously improved along with the increase of the CMC content, but the addition of the CMC material is not too much, otherwise the physical property index of the synthetic leather is affected, so that the folding resistance, the peel strength and the physical and mechanical properties of the product are sharply reduced, and therefore, in some embodiments of the invention, the content of the CMC material preferably accounts for 2.5-4.5 wt% of the aqueous polyurethane slurry. Further, in one or more embodiments of the invention, the aqueous polyurethane slurry is prepared from 80-100 parts of deionized water, 20-40 parts of aqueous polyurethane, 4-6 parts of wetting penetrant, 3-6 parts of CMC material, 1-3 parts of foaming agent and 0-10 parts of aqueous color paste according to parts by mass.
The foaming density of the aqueous polyurethane slurry can be adjusted according to needs, and the adjustment of the product performance can be realized by adjusting the foaming density, and in one or more embodiments of the invention, the foaming density of the aqueous polyurethane slurry is 0.04-0.06g/cm3。
Further, in the first semi-finished product, the thickness of the aqueous polyurethane film formed by gradient temperature rise drying of the aqueous polyurethane slurry is not particularly limited, and may be adjusted according to the product performance requirements, and in one or more embodiments of the present invention, the thickness of the aqueous polyurethane film is 0.3 to 0.5 mm.
In a further scheme, the gradient heating drying in the invention refers to that the drying temperature is gradually increased, generally at least three gradient heating are adopted, and the gradient heating drying can be adjusted according to different compositions of the aqueous polyurethane slurry as long as the drying is realized and the leather surface is not cracked. The drying of polyurethane synthetic leather in the actual production process is usually continuous production, therefore, in one or more embodiments of the invention, the gradient heating drying is completed by using a three-gradient oven, wherein the length of the first gradient oven is 20-25m, and the temperature is 50-80 ℃; the length of the second gradient oven is 20-25m, and the temperature is 80-100 ℃; the length of the third gradient oven is 15-20m, and the temperature is 100-130 ℃.
In a further aspect, the purpose of the padding treatment in the present invention is to dissolve the CMC material in the aqueous polyurethane coating to remove the CMC material, the padding temperature can be adjusted according to the CMC material to ensure that the CMC material can be removed without damaging the aqueous polyurethane coating, and the number of padding times can be performed several times to sufficiently remove the CMC material, and the CMC material is dried. In one or more embodiments of the present invention, the padding process specifically includes: the padding washing temperature is 70-90 ℃, the padding washing times are 10-15, and the drying temperature is 130-150 ℃.
According to the further scheme, the invention carries out corresponding surface treatment on the final product according to the product performance requirement, thereby endowing the final product with specific performance requirement. In one or more embodiments of the present invention, the surface treatment includes a sanding treatment and a water repellent treatment. The surface of the waterborne polyurethane film forms a micro-velvet structure through polishing treatment, so that the surface is fine and smooth and has comfortable touch feeling; and (3) through waterproof treatment, the product is endowed with waterproof performance.
Further, the polishing process in the present invention may adopt a polishing manner conventional in the art, which is not specifically described, and in one or more embodiments of the present invention, the polishing process specifically includes: the mesh number of the sand paper is 360-600 meshes, the rotating speed of the grinding wheel is 2000-3000r/min, and the grinding speed is 10-15 m/min.
According to the invention, the waterproof slurry containing the nano organosilicon waterproof auxiliary agent is preferably adopted to carry out waterproof treatment on the surface of the product, and the ultramicro spherical lotus effect is formed on the surface of the product, so that the excellent dynamic waterproof effect is achieved, and the process is environment-friendly. The waterproof treatment process specifically comprises the step of carrying out waterproof repair treatment on the surface by adopting waterproof slurry, wherein the number of surface rollers is 200-300 meshes, the surface speed is 10-15m/min, and the drying temperature is 80-100 ℃, wherein the waterproof slurry is prepared from 80-100 parts of waterborne polyurethane resin, 0.5-1 part of nano organic silicon waterproof auxiliary agent, 0.1-0.3 part of emulsifying dispersant and 0-10 parts of waterborne color paste by mass.
The invention provides polyurethane synthetic leather for outdoor sports leisure shoes, which is prepared by the preparation method of the first aspect of the invention. The polyurethane synthetic leather for the outdoor sports leisure shoes has excellent moisture absorption and air permeability.
The technical scheme of the invention is more clearly and completely illustrated by combining specific examples and comparative examples.
The following raw material information used in the examples and comparative examples is specifically as follows:
waterborne polyurethane 5215, wanhua chemical group;
wetting penetrant LK-156, Kyobo chemical technology Co., Ltd;
blowing agent AN130PH, Wanhua chemical group;
emulsifying dispersant BYK-104, a product of Germany BYK chemical company;
nanometer organosilicon waterproof assistant LK-606, Hefei Lankai chemical technology Co.
It should be understood that the above raw material information is only an example for making the technical solutions in the embodiments clearer, and does not represent that the present invention can only adopt the above raw materials, and other raw materials capable of achieving the same technical effects can be used in the present invention, specifically, the scope of the claims is subject to the present invention.
Example 1
Providing a single-side porous tissue H flannelette base with the thickness of 0.8mm, wherein the single-side porous tissue H flannelette base is a fabric which is woven into a porous tissue structure by using profiled fibers (profile degree 65) with good moisture absorption and air permeability as raw materials;
coating aqueous polyurethane slurry on the surface of the single-sided porous tissue H flannelette base along the wool, and then gradually drying the single-sided porous tissue H flannelette base sequentially through a first gradient oven (length 20m, temperature 50 ℃), a second gradient oven (length 20m, temperature 80 ℃) and a third gradient oven (length 15m, temperature 100 ℃) to form a uniform porous aqueous polyurethane membrane with the thickness of 0.3mm, so as to obtain a first semi-finished product; wherein the foaming density of the aqueous polyurethane slurry is 0.055g/cm3Consisting of 80 parts of H2The material is prepared from 20 parts of waterborne polyurethane, 3 parts of wetting penetrant, 3 parts of CMC material, 1 part of foaming agent and 2 parts of waterborne color paste in parts by mass;
padding and washing the first semi-finished product with warm water at 75 ℃ for 10 times, removing CMC particles in the aqueous polyurethane slurry, and drying at 130 ℃ to obtain a second semi-finished product;
finely grinding the coating surface of the second semi-finished product (the number of the sand paper is 500 meshes, the number of the grinding wheel revolutions is 2000 r/min, and the grinding speed is 12m/min) to form a micro-velvet structure on the coating surface; then, surface repairing treatment is carried out by adopting nano type organic silicon waterproof auxiliary agent slurry (80 parts of waterborne polyurethane resin, 0.5 part of nano organic silicon waterproof auxiliary agent, 0.1 part of emulsifying dispersant and 4 parts of waterborne color paste) (the number of roller meshes at the surface is 200, the speed at the surface is 10m/min, the drying temperature is 80 ℃) to obtain the polyurethane synthetic leather for the outdoor sports leisure shoes.
Through the test, the polyurethane synthetic leather for outdoor sports leisure shoes obtained in this embodiment is flexed at normal temperature: the surface of the 10 ten thousand times of bending leather does not crack; wear resistance: taber H-22 KG 1KG 500 turns, the leather surface is not broken; peel strength: 3.9 Kg/cm; air permeability: 1.3 mg/(cm)2H); water resistance (anti-siphoning): 0.5cm/2 h. And the polyurethane synthetic leather for the outdoor sports leisure shoes does not contain perfluorooctanoic acid (PFCs and PFOS), has excellent environmental protection performance, and has comfortable and fine touch feeling on the surface of the product.
Example 2
Providing a single-side porous tissue H flannelette base with the thickness of 0.8mm, wherein the single-side porous tissue H flannelette base is a fabric which is woven into a porous tissue structure by using profiled fibers (profile degree 70) with good moisture absorption and air permeability as raw materials;
coating aqueous polyurethane slurry on the surface of the single-sided porous tissue H flannelette base along the wool, and then gradually drying the single-sided porous tissue H flannelette base sequentially through a first gradient oven (length 20m, temperature 50 ℃), a second gradient oven (length 20m, temperature 80 ℃) and a third gradient oven (length 15m, temperature 100 ℃) to form a uniform porous aqueous polyurethane membrane with the thickness of 0.35mm, so as to obtain a first semi-finished product; wherein the foaming density of the aqueous polyurethane slurry is 0.05g/cm3Consisting of 90 parts of H2The paint is prepared from 20 parts of waterborne polyurethane, 3 parts of wetting penetrant, 4 parts of CMC material, 1.5 parts of foaming agent and 3 parts of waterborne color paste in parts by mass;
padding and washing the first semi-finished product with warm water at 80 ℃ for 12 times, removing CMC particles in the aqueous polyurethane slurry, and drying at 130 ℃ to obtain a second semi-finished product;
finely grinding the coating surface of the second semi-finished product (the number of the abrasive paper is 500 meshes, the number of the revolutions of the grinding wheel is 2000 r/min, and the grinding speed is 10m/min) to form a micro-velvet structure on the coating surface; then, surface repairing treatment is carried out by adopting nano type organic silicon waterproof auxiliary agent slurry (80 parts of waterborne polyurethane resin, 0.7 part of nano organic silicon waterproof auxiliary agent, 0.1 part of emulsifying dispersant and 3 parts of waterborne color paste) (the number of roller meshes at the surface is 300, the speed at the surface is 15m/min, the drying temperature is 100 ℃) to obtain the polyurethane synthetic leather for the outdoor sports leisure shoes.
Through the test, the polyurethane synthetic leather for outdoor sports leisure shoes obtained in this embodiment is flexed at normal temperature: the surface of the 10 ten thousand times of bending leather does not crack; wear resistance: taber H-22 KG 1KG 500 turns, the leather surface is not broken; peel strength: 3.5 Kg/cm; air permeability: 1.6 mg/(cm)2H); water resistance (anti-siphoning): 0.5cm/2 h. And the polyurethane synthetic leather for the outdoor sports leisure shoes does not contain perfluorooctanoic acid (PFCs and PFOS), has excellent environmental protection performance, and has comfortable and fine touch feeling on the surface of the product.
Example 3
Providing a single-side porous tissue H flannelette base with the thickness of 0.9mm, wherein the single-side porous tissue H flannelette base is a fabric which is woven into a porous tissue structure by using profiled fibers (profile degree 80) with good moisture absorption and air permeability as raw materials;
coating aqueous polyurethane slurry on the surface of the single-sided porous tissue H flannelette base along the wool, and then gradually drying the single-sided porous tissue H flannelette base sequentially through a first gradient oven (length 25m, temperature 60 ℃), a second gradient oven (length 20m, temperature 100 ℃) and a third gradient oven (length 15m, temperature 120 ℃) to form a uniform porous aqueous polyurethane membrane with the thickness of 0.45mm, so as to obtain a first semi-finished product; wherein the foaming density of the aqueous polyurethane slurry is 0.04g/cm3Consisting of 100 parts of H2The material is prepared from 25 parts of waterborne polyurethane, 5 parts of wetting penetrant, 6 parts of CMC material, 3 parts of foaming agent and 2 parts of waterborne color paste in parts by mass;
padding and washing the first semi-finished product with warm water at 80 ℃ for 12 times, removing CMC particles in the aqueous polyurethane slurry, and drying at 140 ℃ to obtain a second semi-finished product;
finely grinding the coating surface of the second semi-finished product (the number of sand paper meshes is 600 meshes, the number of revolutions of a grinding wheel is 2500 rpm, and the grinding speed is 12m/min) to form a micro-velvet structure on the coating surface; then, surface repairing treatment is carried out by adopting nano type organic silicon waterproof auxiliary agent slurry (80 parts of waterborne polyurethane resin, 0.8 part of nano organic silicon waterproof auxiliary agent, 0.2 part of emulsifying dispersant and 3 parts of waterborne color paste) (the number of roller meshes at the surface is 250 meshes, the speed at the surface is 12m/min, and the drying temperature is 90 ℃) to obtain the polyurethane synthetic leather for the outdoor sports leisure shoes.
Through the test, the polyurethane synthetic leather for outdoor sports leisure shoes obtained in this embodiment is flexed at normal temperature: the surface of the 10 ten thousand times of bending leather does not crack; wear resistance: taber H-22 KG 1KG 500 turns, the leather surface is not broken; peel strength: 3.2 Kg/cm; air permeability: 2.0 mg/(cm)2H); water resistance (anti-siphoning): 0.6cm/2 h. And the polyurethane synthetic leather for the outdoor sports leisure shoes does not contain perfluorooctanoic acid (PFCs and PFOS), has excellent environmental protection performance, and has comfortable and fine touch feeling on the surface of the product.
Comparative example 1
This comparative example uses the same embodiment as example 1 except that: the aqueous polyurethane slurry consists of 80 parts of H2O, 20 parts of waterborne polyurethane, 3 parts of wetting penetrant, 1 part of foaming agent and 2 parts of waterborne color paste.
Through the test, the polyurethane synthetic leather for the outdoor sports leisure shoes obtained by the comparative example is flexed at normal temperature: the surface of the 10 ten thousand times of bending leather does not crack; wear resistance: taber H-22 KG 1KG 500 turns, the leather surface is not broken; peel strength: 4.2 Kg/cm; air permeability: 0.2 mg/(cm)2H); water resistance (anti-siphoning): 0.6cm/2 h.
Comparative example 2
This comparative example uses the same embodiment as example 1 except that: the aqueous polyurethane slurry consists of 80 parts of H2O, 20 parts of waterborne polyurethane, 3 parts of wetting penetrant, 8 parts of CMC material, 1 part of foaming agent and 2 parts of waterborne color pasteThe medicine is prepared according to the mass portion.
Through the test, the polyurethane synthetic leather for the outdoor sports leisure shoes obtained by the comparative example is flexed at normal temperature: cracking the surface of the flex leather for 10 ten thousand times; wear resistance: taber H-22 KG 1KG 500 revolutions, the leather surface broke; peel strength: 2.5 Kg/cm; air permeability: 3.0 mg/(cm)2H); water resistance (anti-siphoning): 2.6cm/2 h.
Comparative example 3
This comparative example uses the same embodiment as example 1 except that: the uniform porous water-based polyurethane film with the thickness of 0.3mm is formed by drying in a first gradient oven (length 20m, temperature 100 ℃), a second gradient oven (length 20m, temperature 100 ℃) and a third gradient oven (length 15m, temperature 100 ℃).
In the comparative example, because a gradient drying process is not adopted, the surface of the waterborne polyurethane is heated rapidly due to overhigh initial temperature, cracks are generated due to uneven tension, the leather surface is cracked, and a normal product cannot be formed.
Comparative example 4
This comparative example uses the same embodiment as example 1 except that: the waterproof slurry in the comparative example is prepared from 80 parts of waterborne polyurethane resin, 1.0 part of fluorine-free waterproof agent WP-NF10 (gold lake additive), 0.1 part of emulsifying dispersant and 4 parts of waterborne color paste.
Through the test, the polyurethane synthetic leather for the outdoor sports leisure shoes obtained by the comparative example is flexed at normal temperature: the surface of the 10 ten thousand times of bending leather does not crack; wear resistance: taber H-22 KG 1KG 500 turns, the leather surface does not break; peel strength: 3.5 Kg/cm; air permeability: 1.5 mg/(cm)2H); water resistance (anti-siphoning): 6.0cm/2 h.
From examples 1, 2 and 3 and comparative examples 1 and 2, it can be seen that the addition of the CMC material can significantly improve the moisture and air permeability of the polyurethane synthetic leather, and as the mass fraction of the CMC in the aqueous polyurethane material increases, the air permeability of the product is gradually enhanced, but not too much, otherwise the folding resistance, peel strength and physical and mechanical properties of the product are sharply reduced. From the comparative example 3, it can be seen that the waterborne polyurethane resin coated on the surface of the cloth substrate is subjected to rapid heating on the surface of the waterborne polyurethane with overhigh initial temperature and uneven tension to generate crack leather surface cracking due to the fact that a novel processing technology of gradient temperature is not adopted, and a normal product cannot be formed. As can be seen from the comparative example 4, if the fluorine-free waterproof agent is adopted, although the waterproof effect can be realized, the waterproof effect is static waterproof, and the nano organosilicon waterproof auxiliary agent in the application achieves excellent dynamic waterproof effect due to the fact that the nano organosilicon waterproof auxiliary agent forms a supermicrosphere-shaped lotus leaf effect on the surface of a product, and the process is environment-friendly.
Example 4
Providing a single-side porous tissue H flannelette base with the thickness of 0.8mm, wherein the single-side porous tissue H flannelette base is a fabric which is woven into a porous tissue structure by using profiled fibers (profile degree 70) with good moisture absorption and air permeability as raw materials;
coating aqueous polyurethane slurry on the surface of the single-sided porous tissue H flannelette base along the wool, and then gradually drying the single-sided porous tissue H flannelette base sequentially through a first gradient oven (length 25m, temperature 60 ℃), a second gradient oven (length 25m, temperature 90 ℃) and a third gradient oven (length 20m, temperature 110 ℃) to form a uniform porous aqueous polyurethane membrane with the thickness of 0.4mm, so as to obtain a first semi-finished product; wherein the foaming density of the aqueous polyurethane slurry is 0.06g/cm3Consisting of 80 parts of H2O, 30 parts of waterborne polyurethane, 4 parts of wetting penetrant, 5.4 parts of CMC material and 1 part of foaming agent;
padding and washing the first semi-finished product with warm water at 90 ℃ for 10 times, removing CMC particles in the aqueous polyurethane slurry, and drying at 150 ℃ to obtain a second semi-finished product;
finely grinding the coating surface of the second semi-finished product (the number of the abrasive paper is 500 meshes, the number of the revolutions of the grinding wheel is 2000 r/min, and the grinding speed is 10m/min) to form a micro-velvet structure on the coating surface; and then carrying out surface repairing treatment by adopting nano type organic silicon waterproof auxiliary agent slurry (90 parts of waterborne polyurethane resin, 1.0 part of nano organic silicon waterproof auxiliary agent and 0.2 part of emulsifying dispersant) to obtain the polyurethane synthetic leather for the outdoor sports leisure shoes.
Example 5
Providing a single-side porous tissue H flannelette base with the thickness of 0.85mm, wherein the single-side porous tissue H flannelette base is a fabric which is woven into a porous tissue structure by using profiled fibers (profile degree 75) with good moisture absorption and air permeability as raw materials;
coating aqueous polyurethane slurry on the surface of the single-sided porous tissue H flannelette base along the wool, and then gradually drying the single-sided porous tissue H flannelette base sequentially through a first gradient oven (length 22m, temperature 80 ℃), a second gradient oven (length 22m, temperature 100 ℃) and a third gradient oven (length 18m, temperature 130 ℃) to form a uniform porous aqueous polyurethane membrane with the thickness of 0.5mm, so as to obtain a first semi-finished product; wherein the foaming density of the aqueous polyurethane slurry is 0.06g/cm3Consisting of 100 parts of H2The material is prepared from 40 parts of waterborne polyurethane, 6 parts of wetting penetrant, 4 parts of CMC material, 3 parts of foaming agent and 10 parts of waterborne color paste in parts by mass;
padding and washing the first semi-finished product for 15 times by warm water at 70 ℃, removing CMC particles in the aqueous polyurethane slurry, and drying at 140 ℃ to obtain a second semi-finished product;
finely grinding the coating surface of the second semi-finished product (the number of the abrasive paper is 500 meshes, the number of the revolutions of the grinding wheel is 2000 r/min, and the grinding speed is 10m/min) to form a micro-velvet structure on the coating surface; then, surface repairing treatment is carried out by adopting nano type organic silicon waterproof auxiliary agent slurry (100 parts of waterborne polyurethane resin, 0.5 part of nano organic silicon waterproof auxiliary agent, 0.3 part of emulsifying dispersant and 10 parts of waterborne color paste) to obtain the polyurethane synthetic leather for the outdoor sports leisure shoes.
Tests show that the polyurethane synthetic leather for the outdoor sports casual shoes in the examples 4 and 5 has the similar performance to the examples 1-3, and is subjected to normal-temperature deflection: the surface of the 10 ten thousand times of bending leather does not crack; wear resistance: taber H-22 KG 1KG 500 turns, the leather surface is not broken; peel strength: 3-4 Kg/cm; air permeability: 1.5-2.0 mg/(cm)2H); water resistance (anti-siphoning): 0.4-0.6cm/2 h. And the product does not contain perfluorooctanoic acid (PFCs and PFOS), has excellent environmental protection performance and comfortable and fine surface touch feeling.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A preparation method of polyurethane synthetic leather for outdoor sports leisure shoes is characterized by comprising the following steps:
providing base cloth, wherein the base cloth is a single-side porous tissue H flannelette base;
coating aqueous polyurethane slurry on the surface of the base fabric along the wool, and performing gradient heating and drying to obtain a first semi-finished product, wherein the aqueous polyurethane slurry contains a CMC material;
padding the first semi-finished product to obtain a second semi-finished product;
and carrying out surface treatment on the second semi-finished product to obtain the polyurethane synthetic leather for the outdoor sports leisure shoes.
2. The method according to claim 1, wherein the single-sided porous H-flannel base is a fabric having a porous structure woven from profiled fibers having a profile degree of > 60, and has a thickness of 0.8 to 0.9 mm.
3. The preparation method of claim 1, wherein the aqueous polyurethane slurry is prepared from 80-100 parts of deionized water, 20-40 parts of aqueous polyurethane, 4-6 parts of wetting penetrant, 3-6 parts of CMC material, 1-3 parts of foaming agent and 0-10 parts of aqueous color paste in parts by mass;
the aqueous polyurethane slurryHas a foaming density of 0.04-0.06g/cm3。
4. The method according to claim 1, wherein the thickness of the aqueous polyurethane coating formed by gradient drying of the aqueous polyurethane slurry in the first semi-finished product is 0.3 to 0.5 mm.
5. The preparation method of claim 1, wherein the gradient temperature rise drying is completed by using a three-gradient oven, wherein the length of the first gradient oven is 20-25m, and the temperature is 50-80 ℃; the length of the second gradient oven is 20-25m, and the temperature is 80-100 ℃; the length of the third gradient oven is 15-20m, and the temperature is 100-130 ℃.
6. The preparation method according to claim 1, wherein the padding treatment process specifically comprises: the padding washing temperature is 70-90 ℃, the padding washing times are 10-15, and the drying temperature is 130-150 ℃.
7. The production method according to claim 1, wherein the surface treatment comprises a polishing treatment and a water repellent treatment.
8. The preparation method according to claim 7, wherein the polishing treatment process specifically comprises: the mesh number of the sand paper is 360-600 meshes, the rotating speed of the grinding wheel is 2000-3000r/min, and the grinding speed is 10-15 m/min.
9. The preparation method according to claim 7, wherein the waterproof treatment process comprises the step of performing waterproof repair treatment on the surface by using waterproof slurry, wherein the number of the surface rollers is 200-300 meshes, the surface speed is 10-15m/min, and the drying temperature is 80-100 ℃, and the waterproof slurry is prepared from 80-100 parts by mass of the waterborne polyurethane resin, 0.5-1 part by mass of the nano-type organosilicon waterproof auxiliary agent, 0.1-0.3 part by mass of the emulsifying dispersant and 0-10 parts by mass of the waterborne color paste.
10. Polyurethane synthetic leather for outdoor sports and leisure shoes, which is prepared by the preparation method of any one of claims 1 to 9.
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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85108817A (en) * 1984-12-07 1986-05-10 第一工业制药株式会社 Permeable tarpaulin paint for fabric
JPH07229070A (en) * 1994-02-18 1995-08-29 Unitika Ltd Production of coated fabric having moisture transmission and waterproofness
US20050069692A1 (en) * 2003-09-25 2005-03-31 Koichi Ito Method for coating porous polyurethane resin
JP2008081877A (en) * 2006-09-27 2008-04-10 Ohara Palladium Kagaku Kk Air-permeable coated fabric
CN104894882A (en) * 2014-03-07 2015-09-09 安踏（中国）有限公司 Preparation method of synthetic leather and polyurethane composition used for synthetic leather
CN108842469A (en) * 2018-08-22 2018-11-20 晋江佰晟新材料科技有限公司 A kind of preparation method of the anti-drilling pile fabric of waterproof and breathable
CN109679327A (en) * 2018-12-26 2019-04-26 浙江东进新材料有限公司 A kind of nano-organosilicon composite polyurethane water-proof emulsion
CN111379172A (en) * 2019-10-16 2020-07-07 丹东轻化工研究院有限责任公司 Preparation method of waterborne polyurethane synthetic leather bass
CN111746056A (en) * 2020-07-08 2020-10-09 清远市齐力合成革有限公司 Organic silicon modified high-wear-resistance synthetic leather

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85108817A (en) * 1984-12-07 1986-05-10 第一工业制药株式会社 Permeable tarpaulin paint for fabric
JPH07229070A (en) * 1994-02-18 1995-08-29 Unitika Ltd Production of coated fabric having moisture transmission and waterproofness
US20050069692A1 (en) * 2003-09-25 2005-03-31 Koichi Ito Method for coating porous polyurethane resin
JP2008081877A (en) * 2006-09-27 2008-04-10 Ohara Palladium Kagaku Kk Air-permeable coated fabric
CN104894882A (en) * 2014-03-07 2015-09-09 安踏（中国）有限公司 Preparation method of synthetic leather and polyurethane composition used for synthetic leather
CN108842469A (en) * 2018-08-22 2018-11-20 晋江佰晟新材料科技有限公司 A kind of preparation method of the anti-drilling pile fabric of waterproof and breathable
CN109679327A (en) * 2018-12-26 2019-04-26 浙江东进新材料有限公司 A kind of nano-organosilicon composite polyurethane water-proof emulsion
CN111379172A (en) * 2019-10-16 2020-07-07 丹东轻化工研究院有限责任公司 Preparation method of waterborne polyurethane synthetic leather bass
CN111746056A (en) * 2020-07-08 2020-10-09 清远市齐力合成革有限公司 Organic silicon modified high-wear-resistance synthetic leather

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
徐旭凡: "改性羧甲基纤维素(MCMC)对聚氨酯PU防水透湿织物性能的影响研究" *
王志佳;陈英;李想;: "芳砜纶/棉混纺织物的防水透湿涂层工艺" *

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