CN108468224A - A kind of preparation method of waterproof moisture-penetrating urethane slurry and waterproof moisture-penetrating urethane synthetic leather - Google Patents
A kind of preparation method of waterproof moisture-penetrating urethane slurry and waterproof moisture-penetrating urethane synthetic leather Download PDFInfo
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- CN108468224A CN108468224A CN201810513648.7A CN201810513648A CN108468224A CN 108468224 A CN108468224 A CN 108468224A CN 201810513648 A CN201810513648 A CN 201810513648A CN 108468224 A CN108468224 A CN 108468224A
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- 239000002002 slurry Substances 0.000 title claims abstract description 103
- 239000002649 leather substitute Substances 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title claims abstract description 40
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 title abstract description 12
- 239000010410 layer Substances 0.000 claims abstract description 72
- 239000000945 filler Substances 0.000 claims abstract description 57
- 239000012790 adhesive layer Substances 0.000 claims abstract description 23
- 239000002904 solvent Substances 0.000 claims abstract description 20
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 62
- 239000011248 coating agent Substances 0.000 claims description 37
- 238000000576 coating method Methods 0.000 claims description 37
- 229920005749 polyurethane resin Polymers 0.000 claims description 28
- 239000000049 pigment Substances 0.000 claims description 26
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 18
- 239000003431 cross linking reagent Substances 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 7
- 229920002101 Chitin Polymers 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 229920002472 Starch Polymers 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000008107 starch Substances 0.000 claims description 4
- 235000019698 starch Nutrition 0.000 claims description 4
- 235000015110 jellies Nutrition 0.000 claims description 3
- 239000008274 jelly Substances 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims description 2
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- 230000008961 swelling Effects 0.000 abstract description 9
- 229920002635 polyurethane Polymers 0.000 abstract description 7
- 239000004814 polyurethane Substances 0.000 abstract description 7
- 230000035699 permeability Effects 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 230000000704 physical effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000002401 inhibitory effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000000643 oven drying Methods 0.000 description 5
- 239000010985 leather Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 108010010803 Gelatin Proteins 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 239000011527 polyurethane coating Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007581 slurry coating method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- 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
- D06N3/0056—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
- D06N3/0056—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
- D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
-
- 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
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0095—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by inversion technique; by transfer processes
- D06N3/0097—Release surface, e.g. separation sheets; Silicone papers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The invention discloses the preparation methods of a kind of waterproof moisture-penetrating urethane slurry and waterproof moisture-penetrating urethane synthetic leather.The preparation of the Waterproof Breathable slurry includes that ultra-fine hydrophilic filler is swollen in a solvent, face layer, middle layer, adhesive layer Waterproof Breathable slurry are obtained using the ultra-fine hydrophilic filler of swelling, again by face layer, middle layer, adhesive layer Waterproof Breathable slurry, waterproof moisture-penetrating urethane synthetic leather is prepared.The present invention is obtained by using above-mentioned, as long as using conventional polyurethanes slurry, it ensure that the physical property of product, by the way that ultra-fine hydrophilic filler is added in the slurry, on the one hand the ultra-fine hole of product is imparted, on the other hand due to the penetrability of hydrophilic filler itself, to impart the high penetrability of product, the physical properties such as synthetic leather water vapour permeability, folding and the wear-resisting property of the present invention and environmental-protecting performance is made to get both.
Description
Technical field
The invention belongs to synthetic leather manufacturing field, it is related to a kind of waterproof moisture-penetrating urethane slurry and Waterproof Breathable synthetic leather
Manufacturing method, especially suitable for shoes leather and sofa artificial leather.
Background technology
With the requirement of the wearing comfort of people, the leather goods with waterproof and moisture-inhibiting function, increasingly by people
Favor.There are two types of the production methods of conventional waterproof moisture-inhibiting Synthetic Leather.One kind is, after common synthetic leather is completed,
It is further added by the process of one of mechanical punching, this method forms small cavity on synthetic leather surface by way of mechanical punching,
The cavity has good gas permeability, but water proofing property, with regard to poor, this method gas permeability is although good, but because does not have hydrophilic group
Group, moisture-inhibiting water vapor permeability can have a greatly reduced quality；Another method is that synthetic leather manufacturing process contains a large amount of hydrophilic groups using special
The polyurethane slurry coating of group；Another method in macromolecular chain by polyurethane building-up process, being added hydrophilic group
Group, so that Waterproof Breathable slurry has the function of that water suction moisture-inhibiting, the advantages of this method are that waterproof and moisture permeable effect are all good, but
It is that the physical and chemical performance of polyurethane resin can be impacted since hydrophilic radical is introduced into polyurethane segment --- leather system
Folding quality, weather resistance and the tensile property of product decline.
Invention content
For the above-mentioned problems in the prior art, the purpose of the present invention is to provide a kind of waterproof moisture-penetrating urethane slurries
The preparation method of material and waterproof moisture-penetrating urethane synthetic leather.
The preparation method of a kind of Waterproof Breathable slurry, it is characterised in that include the following steps：
1）Ultra-fine hydrophilic filler is swollen in a solvent
Ultra-fine hydrophilic filler is added in solvent, it is rapid to stir, it is to slowly warm up to required temperature and keeps the temperature, be cooled to room temperature,
The ultra-fine swellable hydrophilic filler of paste is obtained, rate of charge weight ratio is：10 ~ 60 parts of ultra-fine hydrophilic filler, solvent 90 ~ 40
Part；
2）The Waterproof Breathable slurry for preparing of Waterproof Breathable slurry includes face layer Waterproof Breathable slurry, middle layer Waterproof Breathable
Slurry and adhesive layer Waterproof Breathable slurry
The faces a layer Waterproof Breathable slurry is mixed to get by the component of following parts by weight：
Face 100 parts of polyurethane resin of layer
N,N-Dimethylformamide（Referred to as：DMF, similarly hereinafter）10-30 parts
Ethyl acetate（Referred to as：EA, similarly hereinafter）10-30 parts
Step 1）The swellable hydrophilic filler of acquisition：5 ~ 20 parts
10 ~ 30 parts of pigment
0 ~ 5 part of hand feeling agent；
B middle layer Waterproof Breathable slurries are mixed to get by the component of following parts by weight：
100 parts of middle layer polyurethane resin
5-15 parts of n,N-Dimethylformamide
5-15 parts of ethyl acetate
Step 1）10 ~ 40 parts of the swellable hydrophilic filler of acquisition
10 ~ 30 parts of pigment
0 ~ 5 part of crosslinking agent
C adhesive layer Waterproof Breathable slurries are mixed to get by the component of following parts by weight：
100 parts of bonding layer polyurethane resin
5-15 parts of n,N-Dimethylformamide
5-15 parts of ethyl acetate
Step 1）10 ~ 40 parts of the swellable hydrophilic filler of acquisition
10 ~ 30 parts of pigment
0 ~ 5 part of crosslinking agent.
The modulus of polyurethane resin used in three layers of face of the present invention layer, middle layer and adhesive layer is different：Surface layer resin modulus
Height, the main wearability and sense of touch that synthetic leather is provided；Intermediate layer resin modulus is moderate, and main function increases coating layer thickness, increases
The covering of pigment；Adhesive layer primarily serves the effect of adhering to polyurethane coating and bottom base, this is the conventional skill of synthetic leather industry
Art.
A kind of preparation method of Waterproof Breathable slurry, it is characterised in that step 1）In ultra-fine hydrophilic filler be super
Fecula, micronized polyethylene alcohol powder, microfine cellulose powder, ultra-fine jelly powder or ultrafine chitin, fineness are 800 mesh ~ 6000
Mesh.
A kind of preparation method of Waterproof Breathable slurry, it is characterised in that step 1）In speed of agitator be 1000-
3000 turns/min；Heating rate is 1 DEG C/min, and heating target temperature is 50 ~ 70 DEG C, 10 ~ 30min of soaking time.
A kind of preparation method of Waterproof Breathable slurry, it is characterised in that step 1）In solvent be DMF, MEK or
Propylene glycol monomethyl ether.
A kind of preparation method of Waterproof Breathable slurry, it is characterised in that step 2）In middle layer Waterproof Breathable slurry
Material is mixed to get by the component of following parts by weight：
100 parts of middle layer polyurethane resin
DMF10 parts EA10 parts
10 ~ 40 parts of swellable hydrophilic filler
10 ~ 30 parts of pigment, 0 ~ 5 part of crosslinking agent.
A kind of preparation method of Waterproof Breathable slurry, it is characterised in that step 2）In adhesive layer Waterproof Breathable slurry
Material is mixed to get by the component of following parts by weight：
100 parts of bonding layer polyurethane resin
10 parts of DMF, 10 parts of EA, 10 ~ 40 parts of swellable hydrophilic fillers
10 ~ 30 parts of pigment, 0 ~ 5 part of crosslinking agent.
The Waterproof Breathable synthetic leather preparation method of the Waterproof Breathable slurry, it is characterised in that include the following steps：
1）Release paper unreels；
2）Coated face layer Waterproof Breathable slurry is dried into baking oven：
3）In step 2）Continue to be coated with middle layer Waterproof Breathable slurry on the coating of acquisition, be dried into baking oven；
4）In step 3）It is coated with adhesive layer Waterproof Breathable slurry on the coating of acquisition, is bonded base fabric, is dried subsequently into baking oven；
5）Release paper is removed, Waterproof Breathable synthetic leather is obtained.
The Waterproof Breathable synthetic leather preparation method, it is characterised in that step 2）Between the coating of face layer Waterproof Breathable slurry
Gap 0.1mm ~ 0.15mm.
The Waterproof Breathable synthetic leather preparation method, it is characterised in that step 3）The coating of middle layer Waterproof Breathable slurry
Gap 0.1mm ~ 0.2mm.
The Waterproof Breathable synthetic leather preparation method, it is characterised in that step 4）The coating of adhesive layer Waterproof Breathable slurry
Gap 0.15mm ~ 0.25mm.
By using above-mentioned technology, compared with prior art, the present invention is by using above-mentioned technology, as long as using common poly-
The ultra-fine hydrophilic filler after swelling is added in Waterproof Breathable slurry, is then normally coated in release paper, obtains for urethane resin
High waterproof moisture-penetrating urethane synthetic leather, the advantages of this method are that ensure that the physical property of product using conventional polyurethanes slurry, passed through
Ultra-fine hydrophilic filler is added in the slurry, the ultra-fine hole of product is on the one hand imparted, on the other hand due to hydrophilic filler itself
Penetrability, to impart the high penetrability of product, so as to get the water vapour permeability of synthetic leather get both with environmental-protecting performance.
Specific implementation mode
The invention will be further described with reference to embodiments, but protection scope of the present invention is not limited to that：
Raw material used in the embodiment of the present invention：Ultra-fine starch, manufacturer：Jinan Phaeton Chemical Co., Ltd., the place of production：It helps in Shandong
South；Micronized polyethylene alcohol powder, manufacturer：The triumphant degree industry in Shanghai, the place of production：Shanghai；Microfine cellulose powder, manufacturer：It takes in the fresh again material
Material science and technology（Shanghai）Co., Ltd, the place of production：Shanghai；Ultrafine chitin powder, manufacturer：Henan Chinese businessman's food additive adds Co., Ltd,
The place of production：Henan, Zhengzhou；
Polyurethane resin HX-8070, HX-8035, HX-960G, HX-6060, HX-6035, HX-935G is solvent borne polyurethane tree
Fat, manufacturer：Zhejiang He Xin Science and Technology Ltd.s, the place of production：Zhejiang, Jiaxing.
Embodiment 1：
1, the preparation of Waterproof Breathable slurry
1）Ultra-fine hydrophilic filler is swollen in a solvent
It is the ultra-fine starch of 3000 mesh by fineness, is added in DMF, 1500 turns/min of speed of agitator, slowly heats up（1℃/min）To 60
DEG C, 10min is kept, then is cooled to room temperature, obtains the ultra-fine hydrophilic filler of paste of swelling.Specific proportioning（By weight）, such as
Under：
Ultra-fine starch：30 parts
Solvent：70 parts
2）Prepare Waterproof Breathable slurry
Preparation face layer Waterproof Breathable slurry, it is specific to match（By weight）, as follows：
Face layer polyurethane resin HX-8070：100 parts
DMF：20 parts
EA：20 parts
Step 1）Obtain swellable hydrophilic filler：20 parts
Pigment：10 parts
Hand feeling agent：0 part
Middle layer Waterproof Breathable slurry is prepared, it is specific to match（By weight）, as follows：
Middle layer polyurethane resin HX-8035：100 parts
DMF：10 parts
EA：10 parts
Step 1）Obtain swellable hydrophilic filler：30 parts
Pigment：20 parts
Crosslinking agent：0 part
Adhesive layer Waterproof Breathable slurry is prepared, it is specific to match（By weight）, as follows：
Bonding layer polyurethane resin HX-960G：100 parts
DMF：10 parts
EA：10 parts
Step 1）Obtain swellable hydrophilic filler：40 parts
Pigment：10 parts
Crosslinking agent：1 part
2, the preparation method of Waterproof Breathable synthetic leather
1. release paper unreels；
2. application step 2）The face layer Waterproof Breathable slurry of acquisition, coating clearance 0.1mm are dried into baking oven：
3. on the coating 2. obtained, application step 2）The middle layer Waterproof Breathable slurry of acquisition, coating clearance 0.15mm, into
Enter baking oven drying；
4. on the coating 3. obtained, application step 2）The adhesive layer Waterproof Breathable slurry of acquisition, coating clearance 0.15mm, patch
Base fabric is closed, is dried subsequently into baking oven；
5. removing release paper, Waterproof Breathable synthetic leather is obtained.
Embodiment 2：
1, the preparation of Waterproof Breathable slurry
1）Ultra-fine hydrophilic filler is swollen in a solvent
It is 800 mesh micronized polyethylene alcohol powder by fineness, is added in PM, 1000 turns/min of speed of agitator, slowly heats up（1℃/
min）To 50 DEG C, 20min is kept, then is cooled to room temperature, obtains the ultra-fine hydrophilic filler of paste of swelling.Specific proportioning（By weight
Gauge）, as follows：
Micronized polyethylene alcohol powder：30 parts
PM：70 parts
2）Prepare Waterproof Breathable slurry
Preparation face layer Waterproof Breathable slurry, it is specific to match（By weight）, as follows：
Face layer polyurethane resin HX-6060：100 parts
DMF：20 parts
EA：20 parts
Step 1）Obtain swellable hydrophilic filler：5 parts
Pigment：10 parts
Hand feeling agent：1 part
Middle layer Waterproof Breathable slurry is prepared, it is specific to match（By weight）, as follows：
Middle layer polyurethane resin HX-6035：100 parts
DMF：10 parts
EA：10 parts
Step 1）Obtain swellable hydrophilic filler：30 parts
Pigment：20 parts
Crosslinking agent：0 part
Adhesive layer Waterproof Breathable slurry is prepared, it is specific to match（By weight）, as follows：
Bonding layer polyurethane resin HX-935G：100 parts
DMF：10 parts
EA：10 parts
Step 1）Obtain swellable hydrophilic filler：10 parts
Pigment：10 parts
Crosslinking agent：1 part
2, the preparation method of Waterproof Breathable synthetic leather
1. release paper unreels；
2. application step 2）The face layer Waterproof Breathable slurry of acquisition, coating clearance 0.15mm are dried into baking oven：
3. on the coating 2. obtained, application step 2）The middle layer Waterproof Breathable slurry of acquisition, coating clearance 0.2mm, into
Enter baking oven drying；
4. on the coating 3. obtained, application step 2）The adhesive layer Waterproof Breathable slurry of acquisition, coating clearance 0.25mm, patch
Base fabric is closed, is dried subsequently into baking oven；
5. removing release paper, Waterproof Breathable synthetic leather is obtained.
Embodiment 3：
1, the preparation of Waterproof Breathable slurry
1）Ultra-fine hydrophilic filler is swollen in a solvent
It is 6000 mesh microfine cellulose powder by fineness, is added in MEK, 3000 turns/min of speed of agitator, slowly heats up（1℃/min）
To 70 DEG C, 30min is kept, then is cooled to room temperature, obtains the ultra-fine hydrophilic filler of paste of swelling.Specific proportioning（By weight
Meter）, as follows：
Microfine cellulose powder：60 parts
MEK：40 parts
2）Prepare Waterproof Breathable slurry
Preparation face layer Waterproof Breathable slurry, it is specific to match（By weight）, as follows：
Face layer polyurethane resin HX-8070：100 parts
DMF：20 parts
EA：20 parts
Step 1）Obtain swellable hydrophilic filler：15 parts
Pigment：30 parts
Hand feeling agent：5 parts
Middle layer Waterproof Breathable slurry is prepared, it is specific to match（By weight）, as follows：
Middle layer polyurethane resin HX-8035：100 parts
DMF：10 parts
EA：10 parts
Step 1）Obtain swellable hydrophilic filler：20 parts
Pigment：20 parts
Crosslinking agent：1 part
Adhesive layer Waterproof Breathable slurry is prepared, it is specific to match（By weight）, as follows：
Bonding layer polyurethane resin HX-960G：100 parts
DMF：10 parts
EA：10 parts
Step 1）Obtain swellable hydrophilic filler：40 parts
Pigment：10 parts
Crosslinking agent：0 part
2, the preparation method of Waterproof Breathable synthetic leather
1. release paper unreels；
2. application step 2）The face layer Waterproof Breathable slurry of acquisition, coating clearance 0.12mm are dried into baking oven：
3. on the coating 2. obtained, application step 2）The middle layer Waterproof Breathable slurry of acquisition, coating clearance 0.15mm, into
Enter baking oven drying；
4. on the coating 3. obtained, application step 2）The adhesive layer Waterproof Breathable slurry of acquisition, coating clearance 0.20mm, patch
Base fabric is closed, is dried subsequently into baking oven；
5. removing release paper, Waterproof Breathable synthetic leather is obtained.
Embodiment 4：
1, the preparation of Waterproof Breathable slurry
1）Ultra-fine hydrophilic filler is swollen in a solvent
It is the ultra-fine gelatin of 2000 mesh by fineness, is added in DMF, 2000 turns/min of speed of agitator, slowly heats up（1℃/min）To 60
DEG C, 20min is kept, then is cooled to room temperature, obtains the ultra-fine hydrophilic filler of paste of swelling.Specific proportioning（By weight）, such as
Under：
Ultra-fine jelly powder：50 parts
Solvent：50 parts
2）Prepare Waterproof Breathable slurry
Preparation face layer Waterproof Breathable slurry, it is specific to match（By weight）, as follows：
Face layer polyurethane resin HX-6060：100 parts
DMF：20 parts
EA：20 parts
Step 1）Obtain swellable hydrophilic filler：15 parts
Pigment：30 parts
Hand feeling agent：3 parts
Middle layer Waterproof Breathable slurry is prepared, it is specific to match（By weight）, as follows：
Middle layer polyurethane resin HX-6035：100 parts
DMF：10 parts
EA：10 parts
Step 1）Obtain swellable hydrophilic filler：40 parts
Pigment：30 parts
Crosslinking agent：0 part
Adhesive layer Waterproof Breathable slurry is prepared, it is specific to match（By weight）, as follows：
Bonding layer polyurethane resin HX-960G：100 parts
DMF：10 parts
EA：10 parts
Step 1）Obtain swellable hydrophilic filler：40 parts
Pigment：10 parts
Crosslinking agent：5 parts
2, the preparation method of Waterproof Breathable synthetic leather
1. release paper unreels；
2. application step 2）The face layer Waterproof Breathable slurry of acquisition, coating clearance 0.1mm are dried into baking oven：
3. on the coating 2. obtained, application step 2）The middle layer Waterproof Breathable slurry of acquisition, coating clearance 0.15mm, into
Enter baking oven drying；
4. on the coating 3. obtained, application step 2）The adhesive layer Waterproof Breathable slurry of acquisition, coating clearance 0.15mm, patch
Base fabric is closed, is dried subsequently into baking oven；
5. removing release paper, Waterproof Breathable synthetic leather is obtained.
Embodiment 5：
1, the preparation of Waterproof Breathable slurry
1）Ultra-fine hydrophilic filler is swollen in a solvent
It is 3000 mesh ultrafine chitins by fineness, is added in PM, 2500 turns/min of speed of agitator, slowly heats up（1℃/min）Extremely
60 DEG C, 30min is kept, then is cooled to room temperature, obtains the ultra-fine hydrophilic filler of paste of swelling.Specific proportioning（By weight）,
It is as follows：
Ultrafine chitin：10 parts
Solvent：90 parts
2）Prepare Waterproof Breathable slurry
Preparation face layer Waterproof Breathable slurry, it is specific to match（By weight）, as follows：
Face layer polyurethane resin HX-8070：100 parts
DMF：20 parts
EA：20 parts
Step 1）Obtain swellable hydrophilic filler：20 parts
Pigment：20 parts
Hand feeling agent：3 parts
Middle layer Waterproof Breathable slurry is prepared, it is specific to match（By weight）, as follows：
Middle layer polyurethane resin HX-8035：100 parts
DMF：10 parts
EA：10 parts
Step 1）Obtain swellable hydrophilic filler：30 parts
Pigment：30 parts
Crosslinking agent：3 parts
Adhesive layer Waterproof Breathable slurry is prepared, it is specific to match（By weight）, as follows：
Bonding layer polyurethane resin HX-935G：100 parts
DMF：10 parts
EA：10 parts
Step 1）Obtain swellable hydrophilic filler：40 parts
Pigment：25 parts
Crosslinking agent：5 parts
2, the preparation method of Waterproof Breathable synthetic leather
1. release paper unreels；
2. application step 2）The face layer Waterproof Breathable slurry of acquisition, coating clearance 0.15mm are dried into baking oven：
3. on the coating 2. obtained, application step 2）The middle layer Waterproof Breathable slurry of acquisition, coating clearance 0.15mm, into
Enter baking oven drying；
4. on the coating 3. obtained, application step 2）The adhesive layer Waterproof Breathable slurry of acquisition, coating clearance 0.20mm, patch
Base fabric is closed, is dried subsequently into baking oven；
5. removing release paper, Waterproof Breathable synthetic leather is obtained.
The Waterproof Breathable synthetic leather that the present invention obtains embodiment is with common synthetic leather, laser boring synthetic leather and using saturating
The performance of wet resin synthetic leather is compared, and the results are shown in Table 1.
Note：Air penetrability test method is using GB/T 5453-1997 textiles, textile testing methods；Dynamic moisture-inhibiting measures
Method for testing uses the detection method of QB/T 4044-2010 vapor permeations amount and vapor permeation and absorption coefficient.
As can be drawn from Table 1, synthetic leather of the invention, air penetrability, vapor permeation and absorption coefficient are both significantly higher than
Existing synthetic leather, the present invention, at a certain temperature can lyosoption and the characteristics that are swollen using the ultra-fine hydrophilic filler selected；
The ultra-fine hydrophilic filler after high temperature swelling is added in Waterproof Breathable slurry, using conventional dry synthetic leather manufacturing method, applies
After being distributed in release paper, during coating enters baking oven and loses solvent, the ultra-fine hydrophilic filler of swelling also loses solvent
And there is volume contraction, to form ultrafine micropore in the coating, and then obtain high waterproof moisture-penetrating urethane synthetic leather.This method
The advantages of for using conventional polyurethanes slurry, the physical property of product is ensure that, by the way that ultra-fine hydrophilic filler, a side are added in the slurry
Face imparts the ultra-fine hole of product, high to impart product on the other hand due to the penetrability of hydrophilic filler itself
Penetrability makes the synthetic leather water vapour permeability of the present invention get both with environmental-protecting performance.
Claims (10)
1. a kind of preparation method of Waterproof Breathable slurry, it is characterised in that include the following steps：
1）Ultra-fine hydrophilic filler is swollen in a solvent
Ultra-fine hydrophilic filler is added in solvent, it is rapid to stir, it is to slowly warm up to required temperature and keeps the temperature, be cooled to room temperature,
The ultra-fine swellable hydrophilic filler of paste is obtained, rate of charge weight ratio is：10 ~ 60 parts of ultra-fine hydrophilic filler, solvent 90 ~ 40
Part；
2）The Waterproof Breathable slurry for preparing of Waterproof Breathable slurry includes face layer Waterproof Breathable slurry, middle layer Waterproof Breathable
Slurry and adhesive layer Waterproof Breathable slurry
The faces a layer Waterproof Breathable slurry is mixed to get by the component of following parts by weight：
Face 100 parts of polyurethane resin of layer
10-30 parts of n,N-Dimethylformamide
10-30 parts of ethyl acetate
Step 1）The swellable hydrophilic filler of acquisition：5 ~ 20 parts
10 ~ 30 parts of pigment
0 ~ 5 part of hand feeling agent；
B middle layer Waterproof Breathable slurries are mixed to get by the component of following parts by weight：
100 parts of middle layer polyurethane resin
5-15 parts of n,N-Dimethylformamide
5-15 parts of ethyl acetate
Step 1）10 ~ 40 parts of the swellable hydrophilic filler of acquisition
10 ~ 30 parts of pigment
0 ~ 5 part of crosslinking agent
C adhesive layer Waterproof Breathable slurries are mixed to get by the component of following parts by weight：
100 parts of bonding layer polyurethane resin
5-15 parts of n,N-Dimethylformamide
5-15 parts of ethyl acetate
Step 1）10 ~ 40 parts of the swellable hydrophilic filler of acquisition
10 ~ 30 parts of pigment
0 ~ 5 part of crosslinking agent.
2. a kind of preparation method of Waterproof Breathable slurry according to claim 1, it is characterised in that step 1）In it is ultra-fine
Hydrophilic filler is ultra-fine starch, micronized polyethylene alcohol powder, microfine cellulose powder, ultra-fine jelly powder or ultrafine chitin, fineness
For the mesh of 800 mesh ~ 6000.
3. a kind of preparation method of Waterproof Breathable slurry according to claim 1, it is characterised in that step 1）In stirring
Rotating speed is that 1000-3000 turns/min；Heating rate is 1 DEG C/min, and heating target temperature is 50 ~ 70 DEG C, soaking time 10 ~
30min。
4. a kind of preparation method of Waterproof Breathable slurry according to claim 1, it is characterised in that step 1）In solvent
For DMF, MEK or propylene glycol monomethyl ether.
5. a kind of preparation method of Waterproof Breathable slurry according to claim 1, it is characterised in that step 2）In centre
Layer Waterproof Breathable slurry is mixed to get by the component of following parts by weight：
100 parts of middle layer polyurethane resin
DMF10 parts EA10 parts
10 ~ 40 parts of swellable hydrophilic filler
10 ~ 30 parts of pigment, 0 ~ 5 part of crosslinking agent.
6. a kind of preparation method of Waterproof Breathable slurry according to claim 1, it is characterised in that step 2）In bonding
Layer Waterproof Breathable slurry is mixed to get by the component of following parts by weight：
100 parts of bonding layer polyurethane resin
10 parts of DMF, 10 parts of EA, 10 ~ 40 parts of swellable hydrophilic fillers
10 ~ 30 parts of pigment, 0 ~ 5 part of crosslinking agent.
7. a kind of Waterproof Breathable synthetic leather preparation method using Waterproof Breathable slurry described in claim 1, it is characterised in that packet
Include following steps：
1）Release paper unreels；
2）Coated face layer Waterproof Breathable slurry is dried into baking oven：
3）In step 2）Continue to be coated with middle layer Waterproof Breathable slurry on the coating of acquisition, be dried into baking oven；
4）In step 3）It is coated with adhesive layer Waterproof Breathable slurry on the coating of acquisition, is bonded base fabric, is dried subsequently into baking oven；
5）Release paper is removed, Waterproof Breathable synthetic leather is obtained.
8. Waterproof Breathable synthetic leather preparation method according to claim 7, it is characterised in that step 2）Face layer Waterproof Breathable
Coating clearance 0.1mm ~ 0.15mm of slurry.
9. Waterproof Breathable synthetic leather preparation method according to claim 7, it is characterised in that step 3）Middle layer waterproof is saturating
Coating clearance 0.1mm ~ 0.2mm of wet slurry.
10. Waterproof Breathable synthetic leather preparation method according to claim 7, it is characterised in that step 4）Adhesive layer waterproof is saturating
Coating clearance 0.15mm ~ 0.25mm of wet slurry.
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