CN102330359A - Method for manufacturing high wear-resisting and high waterproof polyurethane artificial leather for safety and industrial costume - Google Patents
Method for manufacturing high wear-resisting and high waterproof polyurethane artificial leather for safety and industrial costume Download PDFInfo
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- CN102330359A CN102330359A CN201110128194A CN201110128194A CN102330359A CN 102330359 A CN102330359 A CN 102330359A CN 201110128194 A CN201110128194 A CN 201110128194A CN 201110128194 A CN201110128194 A CN 201110128194A CN 102330359 A CN102330359 A CN 102330359A
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- slurry
- coated
- release liners
- surface layer
- polyurethane
- Prior art date
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- 229920002635 polyurethane Polymers 0.000 title claims abstract description 36
- 239000004814 polyurethane Substances 0.000 title claims abstract description 36
- 239000002649 leather substitute Substances 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title abstract description 4
- 239000002002 slurry Substances 0.000 claims abstract description 53
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims abstract description 39
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000002344 surface layer Substances 0.000 claims abstract description 27
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 17
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 239000006255 coating slurry Substances 0.000 claims abstract description 15
- 238000002156 mixing Methods 0.000 claims abstract description 14
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 9
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 9
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 8
- 239000002562 thickening agent Substances 0.000 claims abstract description 8
- -1 polysiloxane Polymers 0.000 claims abstract description 4
- 238000005299 abrasion Methods 0.000 claims description 18
- 239000010985 leather Substances 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 9
- 239000012752 auxiliary agent Substances 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 239000003086 colorant Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 3
- 229920005749 polyurethane resin Polymers 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 238000009472 formulation Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000000049 pigment Substances 0.000 abstract 1
- 229920000728 polyester Polymers 0.000 abstract 1
- 229920001296 polysiloxane Polymers 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 238000009423 ventilation Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 10
- 238000003756 stirring Methods 0.000 description 6
- 230000035699 permeability Effects 0.000 description 3
- 244000137852 Petrea volubilis Species 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The invention relates to a method for manufacturing high wear-resisting and high waterproof polyurethane artificial leather for a safety and industrial costume, which comprises the following steps of: blending surface layer slurry containing polyester polyurethane, dimethylformamide, a flatting agent, a stripping auxiliary, a modified polysiloxane hydrocarbon antifoaming agent and a pigment; blending middle layer slurry containing waterborne polyurethane, water, a thickener and an antifoaming agent; blending adhesive coating slurry containing polyurethane, dimethylformamide, toluene, butanone, an accelerant and a cross-linking agent; and then carrying out a coating process. Solvent polyurethane resin and water-soluble polyurethane resin are cooperatively used; a dry coating production process is adopted; the product produced by the formulation technology has excellent wear resistance, waterproofness and ventilation property and is comfortable to wear.
Description
[technical field]
The present invention relates to a kind of manufacturing approach of polyurethane artificial leather, be meant a kind of manufacturing approach that is applicable to the polyurethane artificial leather of the high waterproof of high abrasion that labour protection is obeyed especially.
[background technology]
In recent years, along with developing rapidly of artificial leather synthetic leather industry, all size product has appearred on the market, and the purposes diversification, be widely used in various life production fields.Because the market demand, the high waterproof artificial leather of high abrasion product demand amount is increasing.But the high waterproof artificial leather of high abrasion is taken in labour protection in the market, mainly is artificial polyvinyl chloride leather, because this material air-tightness is good; Density is big, and waterproof effect is arranged, but comparatively heavy; Plastic sense is strong, and gas permeability is poor, and pvc material need add into some softeners, plasticizer, slipping agent etc. simultaneously; And these materials the inside is contained the human body harmful material of causing injury, and this material becomes the material of not environmental protection, will be forbidden by European Union.Also have polyurethane artificial leather, the thickness through strengthening coating is to reach the high waterproof of high abrasion usually for the polyurethane artificial leather on the market, and this causes the raising of production cost, and the material feel is thick and heavy.
[summary of the invention]
Technical problem to be solved by this invention is to provide a kind of manufacturing approach with polyurethane artificial leather of good ABRASION RESISTANCE, water proofing property, gas permeability, and the polyurethane artificial leather that this method is made is applicable to making the labour protection clothes.
The present invention adopts following technical scheme to solve the problems of the technologies described above:
The manufacturing approach of the polyurethane artificial leather of the high waterproof of high abrasion is taken in a kind of labour protection, comprises the steps:
Step 10: allocate required slurry: specifically comprise the steps:
Step 11: the allotment surface layer slurry, after fully mixing was stirred, 200 order screen packs filter, and were subsequent use after the vacuum defoamation;
Step 12: allotment middle level slurry, after fully mixing was stirred, it is subsequent use that 200 order screen packs filter the back;
Step 13: allotment adhesion coating slurry, after fully mixing was stirred, it is subsequent use that 200 order screen packs filter the back;
Step 20: coating process: release liners is transported to No. one is coated with platform, the surface layer slurry that step 11 is prepared is coated with to be coated with on the platform at No. one and scrapes the release liners surface, is coated with the release liners of having scraped surface layer slurry and gets into an oven for drying; Be delivered to No. two after the oven dry again and be coated with platform, the middle level slurry that again step 12 is prepared is coated with and scrapes the release liners surface, then; Release liners gets into No. two oven for drying; Be delivered to No. three again and be coated with platform, the adhesion coating slurry that again step 13 is prepared is coated with and scrapes the release liners surface, sends into the make-up machine patch after No. three baking oven bakings of release liners entering afterwards are half-dried; Oven dry again after the patch is wound into the paper leather; The paper leather was sent into the curing chamber slaking more than 48 hours, and taking out fully from curing chamber, cooling back bundling is packaged to be finished product;
The surface layer slurry of said step 11 comprises following raw material: PAUR, dimethyl formamide, levelling agent, peel off auxiliary agent, modified polyorganosiloxane hydrocarbon antifoaming agent, colorant;
The middle level slurry of said step 12 comprises following raw material: aqueous polyurethane, water, thickener, antifoaming agent;
The adhesion coating slurry of said step 13 comprises following raw material: polyurethane, dimethyl formamide, toluene, butanone, promoter, crosslinking agent.
Further, also comprise butanone in the surface layer slurry in the said step 11.
Further, also comprise toluene in the surface layer slurry in the said step 11.
Further, also comprise levelling agent in the middle level slurry of said step 12.
Further, the surface layer slurry of said step 11 is prepared by following part by weight:
100 parts of PAURs
Dimethyl formamide 20-100 part
Levelling agent 1-3 part
Peel off auxiliary agent 0.1-1 part
Modified polyorganosiloxane hydrocarbon antifoaming agent 2-5 part
Colorant 4-15 part.
Further, the middle level slurry of said step 12 is prepared by following part by weight:
100 parts of aqueous polyurethanes
Water 20-70 part
Thickener 1-5 part
Antifoaming agent 1-10 part.
Further, the adhesion coating slurry of said step 13 is prepared by following part by weight:
100 parts of polyurethane
Dimethyl formamide 10-50 part
Toluene 20-50 part
Butanone 10-40 part
Promoter 2-5 part
Crosslinking agent 5-10 part.
Further, also comprise butanone in the surface layer slurry of said step 11, its part by weight is below 50 parts.
Further, also comprise toluene in the surface layer slurry of said step 11, its part by weight is below 100 parts.
Further, also comprise levelling agent in the middle level slurry of said step 12, its part by weight is below 5 parts.
The invention has the advantages that: be used through using solvent-borne type and water-soluble type polyurethane resin, adopt dry method coating production technology, the product of this Recipe production has good ABRASION RESISTANCE, water proofing property, gas permeability, and is comfortable and easy to wear.The product that Recipe of the present invention is produced, ABRASION RESISTANCE are far above the like product on the market, and can reach 5000 according to EN530 (sand paper specification GRIT100) test changes the above breakage of not having, and average hydrostatic pressing is more than 10000mm; Have softly, comfortable and easy to wear, processing is easy to characteristics such as high frequency hot pressing, is convenient to processing.
[specific embodiment]
Embodiment one:
The manufacturing approach of the polyurethane artificial leather of the high waterproof of high abrasion is taken in a kind of labour protection, comprises the steps:
Step 10: allotment slurry: comprise the steps:
Step 11: allotment surface layer slurry; By the preparation of following part by weight: 100 parts of PAURs, 45 parts of dimethyl formamides (DMF), 1 part of levelling agent, peel off 0.5 part of auxiliary agent, 3 parts of modified polyorganosiloxane hydrocarbon antifoaming agents, 4 parts in black material, fully mix and stir; 200 order screen packs filter, and are subsequent use after the vacuum defoamation.
Step 12: allotment middle level slurry: 100 parts of aqueous polyurethanes, 20 parts in water, 3 parts of antifoaming agents, 4 parts of thickeners, fully mixing stirring, it is subsequent use that 200 order screen packs filter the back.
Step 13: allotment adhesion coating slurry: 100 parts of polyurethane, 20 parts of dimethyl formamides, 40 parts of toluene, 15 parts of butanone, 4 parts of promoter, 8 parts of crosslinking agents, it is subsequent use that 200 order screen packs filter the back.
Step 20: coating process: release liners is transported to No. one is coated with platform, the surface layer slurry that step 11 is prepared is coated with to be coated with on the platform at No. one and scrapes the release liners surface, is coated with the release liners of having scraped surface layer slurry and gets into an oven for drying; Be delivered to No. two after the oven dry again and be coated with platform, the middle level slurry that again step 12 is prepared is coated with and scrapes the release liners surface, then; Release liners gets into No. two oven for drying; Be delivered to No. three again and be coated with platform, the adhesion coating slurry that again step 13 is prepared is coated with and scrapes the release liners surface, sends into the make-up machine patch after No. three baking oven bakings of release liners entering afterwards are half-dried; Oven dry again after the patch is wound into the paper leather; The paper leather was sent into the curing chamber slaking more than 48 hours, and taking out fully from curing chamber, cooling back bundling is packaged to be finished product.Technological parameter: three are coated with the platform scraper gap is respectively 0.18mm, 0.10mm, 0.18mm.
Embodiment two:
The manufacturing approach of the polyurethane artificial leather of the high waterproof of high abrasion is taken in a kind of labour protection, comprises the steps:
Step 10: allotment slurry: comprise the steps:
Step 11: allotment surface layer slurry; By the preparation of following part by weight: 100 parts of PAURs, 20 parts of dimethyl formamides (DMF), 3 parts of levelling agents, peel off 0.1 part of auxiliary agent, 2 parts of modified polyorganosiloxane hydrocarbon antifoaming agents, 4 parts in black material, fully mix and stir; 200 order screen packs filter, and are subsequent use after the vacuum defoamation.
Step 12: allotment middle level slurry: 100 parts of aqueous polyurethanes, 70 parts in water, 0.3 part of levelling agent, 1 part of antifoaming agent, 1 part of thickener, fully mixing stirring, it is subsequent use that 200 order screen packs filter the back.
Step 13: allotment adhesion coating slurry: 100 parts of polyurethane, 10 parts of dimethyl formamides, 20 parts of toluene, 10 parts of butanone, 2 parts of promoter, 5 parts of crosslinking agents, it is subsequent use that 200 order screen packs filter the back.
Step 20 is with embodiment one.
Embodiment three:
The manufacturing approach of the polyurethane artificial leather of the high waterproof of high abrasion is taken in a kind of labour protection, comprises the steps:
Step 10: allotment slurry: comprise the steps:
Step 11: allotment surface layer slurry: 100 parts of PAURs, 100 parts of dimethyl formamides (DMF), 20 parts of butanone, 50 parts of toluene, 3 parts of levelling agents, peel off 1 part of auxiliary agent, 5 parts of modified polyorganosiloxane hydrocarbon antifoaming agents, 15 parts in white material, fully mix and stir; 200 order screen packs filter, and are subsequent use after the vacuum defoamation.
Step 12: allotment middle level slurry: 100 parts of aqueous polyurethanes, 50 parts in water, 0.3 part of levelling agent, 10 parts of antifoaming agents, 5 parts of thickeners, fully mixing stirring, it is subsequent use that 200 order screen packs filter the back.
Step 13: allotment adhesion coating slurry: 100 parts of polyurethane, 50 parts of dimethyl formamides, 45 parts of toluene, 40 parts of butanone, 5 parts of promoter, 10 parts of crosslinking agents, it is subsequent use that 200 order screen packs filter the back.
Step 20 is with embodiment one.
The product that Recipe of the present invention is produced, ABRASION RESISTANCE are far above the like product on the market, and can reach 5000 according to EN530 (sand paper specification GRIT100) test changes the above breakage of not having, and average hydrostatic pressing is more than 10000mm; Have softly, comfortable and easy to wear, processing is easy to characteristics such as high frequency hot pressing, is convenient to processing.
Claims (5)
1. the manufacturing approach that the polyurethane artificial leather of the high waterproof of high abrasion is taken in labour protection comprises the steps:
Step 10: allocate required slurry: specifically comprise the steps:
Step 11: the allotment surface layer slurry, after fully mixing was stirred, 200 order screen packs filter, and were subsequent use after the vacuum defoamation;
Step 12: allotment middle level slurry, after fully mixing was stirred, it is subsequent use that 200 order screen packs filter the back;
Step 13: allotment adhesion coating slurry, after fully mixing was stirred, it is subsequent use that 200 order screen packs filter the back;
Step 20: coating process: release liners is transported to No. one is coated with platform, the surface layer slurry that step 11 is prepared is coated with to be coated with on the platform at No. one and scrapes the release liners surface, is coated with the release liners of having scraped surface layer slurry and gets into an oven for drying; Be delivered to No. two after the oven dry again and be coated with platform, the middle level slurry that again step 12 is prepared is coated with and scrapes the release liners surface, then; Release liners gets into No. two oven for drying; Be delivered to No. three again and be coated with platform, the adhesion coating slurry that again step 13 is prepared is coated with and scrapes the release liners surface, sends into the make-up machine patch after No. three baking oven bakings of release liners entering afterwards are half-dried; Oven dry again after the patch is wound into the paper leather; The paper leather was sent into the curing chamber slaking more than 48 hours, and taking out fully from curing chamber, cooling back bundling is packaged to be finished product;
It is characterized in that: the surface layer slurry of said step 11 comprises following raw material: PAUR, dimethyl formamide, levelling agent, peel off auxiliary agent, modified polyorganosiloxane hydrocarbon antifoaming agent, colorant;
The middle level slurry of said step 12 comprises following raw material: aqueous polyurethane, water, thickener, antifoaming agent;
The adhesion coating slurry of said step 13 comprises following raw material: polyurethane, dimethyl formamide, toluene, butanone, promoter, crosslinking agent.
2. the manufacturing approach of the polyurethane artificial leather of the high waterproof of high abrasion is taken in a kind of labour protection as claimed in claim 1, it is characterized in that: also comprise butanone in the surface layer slurry in the said step 11.
3. the manufacturing approach of the polyurethane artificial leather of the high waterproof of high abrasion is taken in a kind of labour protection as claimed in claim 1, it is characterized in that: also comprise toluene in the surface layer slurry in the said step 11.
4. the manufacturing approach of the polyurethane artificial leather of the high waterproof of high abrasion is taken in a kind of labour protection as claimed in claim 1, it is characterized in that: also comprise levelling agent in the middle level slurry of said step 12;
Step 12: allotment middle level slurry, after fully mixing was stirred, it is subsequent use that 200 order screen packs filter the back;
Step 13: allotment adhesion coating slurry, after fully mixing was stirred, it is subsequent use that 200 order screen packs filter the back;
Step 20: coating process: release liners is transported to No. one is coated with platform, the surface layer slurry that step 11 is prepared is coated with to be coated with on the platform at No. one and scrapes the release liners surface, is coated with the release liners of having scraped surface layer slurry and gets into an oven for drying; Be delivered to No. two after the oven dry again and be coated with platform, the middle level slurry that again step 12 is prepared is coated with and scrapes the release liners surface, then; Release liners gets into No. two oven for drying; Be delivered to No. three again and be coated with platform, the adhesion coating slurry that again step 13 is prepared is coated with and scrapes the release liners surface, sends into the make-up machine patch after No. three baking oven bakings of release liners entering afterwards are half-dried; Oven dry again after the patch is wound into the paper leather; The paper leather was sent into the curing chamber slaking more than 48 hours, and taking out fully from curing chamber, cooling back bundling is packaged to be finished product;
The surface layer slurry of said step 11 comprises following raw material: PAUR, dimethyl formamide, levelling agent, peel off auxiliary agent, modified polyorganosiloxane hydrocarbon antifoaming agent, colorant;
The middle level slurry of said step 12 comprises following raw material: aqueous polyurethane, water, thickener, antifoaming agent;
The adhesion coating slurry of said step 13 comprises following raw material: polyurethane, dimethyl formamide, toluene, butanone, promoter, crosslinking agent;
Further, also comprise butanone in the surface layer slurry in the said step 11;
Further, also comprise toluene in the surface layer slurry in the said step 11;
Further, also comprise levelling agent in the middle level slurry of said step 12;
Further, the surface layer slurry of said step 11 is prepared by following part by weight:
100 parts of PAURs
Dimethyl formamide 20-100 part
Levelling agent 1-3 part
Peel off auxiliary agent 0.1-1 part
Modified polyorganosiloxane hydrocarbon antifoaming agent 2-5 part
Colorant 4-15 part;
Further, the middle level slurry of said step 12 is prepared by following part by weight:
100 parts of aqueous polyurethanes
Water 20-70 part.
5. the manufacturing approach of the polyurethane artificial leather of the high waterproof of high abrasion is taken in a kind of labour protection as claimed in claim 1, it is characterized in that: also comprise levelling agent in the middle level slurry of said step 12, its part by weight is below 5 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110128194 CN102330359B (en) | 2011-05-16 | 2011-05-16 | Method for manufacturing high wear-resisting and high waterproof polyurethane artificial leather for safety and industrial costume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110128194 CN102330359B (en) | 2011-05-16 | 2011-05-16 | Method for manufacturing high wear-resisting and high waterproof polyurethane artificial leather for safety and industrial costume |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102330359A true CN102330359A (en) | 2012-01-25 |
| CN102330359B CN102330359B (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110128194 Expired - Fee Related CN102330359B (en) | 2011-05-16 | 2011-05-16 | Method for manufacturing high wear-resisting and high waterproof polyurethane artificial leather for safety and industrial costume |
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Cited By (12)
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| CN103317809A (en) * | 2013-06-26 | 2013-09-25 | 江苏南纬悦达纺织研究院有限公司 | Method for manufacturing bonded fabric with improved moisture permeability |
| CN103358641A (en) * | 2013-06-26 | 2013-10-23 | 江苏南纬悦达纺织研究院有限公司 | Shell fabric manufacturing technology for improving stripping strength of high-denier gluing shell fabric |
| CN104164790A (en) * | 2014-07-02 | 2014-11-26 | 合肥冠怡涂层织物有限公司 | Waterproof moisture-permeable artificial leather used for clothing and preparing method thereof |
| CN104562725A (en) * | 2013-10-27 | 2015-04-29 | 江苏国信合成革有限公司 | High-wear-resistance water-based PUD floor leather and preparation method thereof |
| CN105155295A (en) * | 2015-08-13 | 2015-12-16 | 浙江繁盛超纤制品有限公司 | Production technology of waterborne polyurethane clothing leather |
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| CN103317809A (en) * | 2013-06-26 | 2013-09-25 | 江苏南纬悦达纺织研究院有限公司 | Method for manufacturing bonded fabric with improved moisture permeability |
| CN103358641A (en) * | 2013-06-26 | 2013-10-23 | 江苏南纬悦达纺织研究院有限公司 | Shell fabric manufacturing technology for improving stripping strength of high-denier gluing shell fabric |
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| CN104562725A (en) * | 2013-10-27 | 2015-04-29 | 江苏国信合成革有限公司 | High-wear-resistance water-based PUD floor leather and preparation method thereof |
| CN104164790A (en) * | 2014-07-02 | 2014-11-26 | 合肥冠怡涂层织物有限公司 | Waterproof moisture-permeable artificial leather used for clothing and preparing method thereof |
| CN104164790B (en) * | 2014-07-02 | 2016-05-04 | 合肥冠怡涂层织物有限公司 | A kind of artificial leather and preparation method thereof for waterproof moisture permeable clothing |
| CN105155295A (en) * | 2015-08-13 | 2015-12-16 | 浙江繁盛超纤制品有限公司 | Production technology of waterborne polyurethane clothing leather |
| CN105155295B (en) * | 2015-08-13 | 2018-02-06 | 浙江繁盛超纤制品有限公司 | A kind of aqueous polyurethane clothing leather production technology |
| CN105484055B (en) * | 2016-01-14 | 2017-11-24 | 鹤山市新科达企业有限公司 | Polyurethane dry method middle level, Synthetic Leather and preparation method thereof |
| CN105484055A (en) * | 2016-01-14 | 2016-04-13 | 鹤山市新科达企业有限公司 | Polyurethane dry method intermediate layer, as well as polyurethane synthetic leather and preparation method thereof |
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| CN109137550A (en) * | 2018-08-20 | 2019-01-04 | 福建省向兴纺织科技有限公司 | A kind of PU coating fabric manufacture craft of high water pressure resistance height tearing |
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| CN115181820A (en) * | 2022-06-24 | 2022-10-14 | 福建裕隆纺纱有限公司 | Waterproof wear-resistant artificial leather and manufacturing process thereof |
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