CN112760996A - Breathable and warm-keeping silica aerogel water-based PU environment-friendly fabric and production method thereof - Google Patents
Breathable and warm-keeping silica aerogel water-based PU environment-friendly fabric and production method thereof Download PDFInfo
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- CN112760996A CN112760996A CN202011583061.7A CN202011583061A CN112760996A CN 112760996 A CN112760996 A CN 112760996A CN 202011583061 A CN202011583061 A CN 202011583061A CN 112760996 A CN112760996 A CN 112760996A
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- water
- silica aerogel
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- 239000004744 fabric Substances 0.000 title claims abstract description 98
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 59
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 239000004965 Silica aerogel Substances 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000005470 impregnation Methods 0.000 claims abstract description 49
- 239000002002 slurry Substances 0.000 claims abstract description 35
- 238000001035 drying Methods 0.000 claims abstract description 30
- 239000011347 resin Substances 0.000 claims abstract description 22
- 229920005989 resin Polymers 0.000 claims abstract description 22
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000005096 rolling process Methods 0.000 claims abstract description 14
- 238000003756 stirring Methods 0.000 claims abstract description 14
- 239000008367 deionised water Substances 0.000 claims abstract description 13
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 13
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 10
- 238000005406 washing Methods 0.000 claims abstract description 8
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 7
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 7
- 239000010985 leather Substances 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 4
- 230000035699 permeability Effects 0.000 abstract description 9
- 238000004321 preservation Methods 0.000 abstract description 8
- 238000009413 insulation Methods 0.000 abstract description 5
- 238000002791 soaking Methods 0.000 abstract description 4
- 239000004814 polyurethane Substances 0.000 description 68
- 229920002635 polyurethane Polymers 0.000 description 67
- 239000002649 leather substitute Substances 0.000 description 8
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 239000004964 aerogel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics
-
- 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
- D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
-
- 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
-
- 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
Abstract
The invention discloses a production method of a breathable warm-keeping silica aerogel water-based PU environment-friendly fabric, which comprises the following steps: adding aqueous PU resin and deionized water into a batching tank, and sequentially adding silicon dioxide sol, color paste and dispersing auxiliary agent under the stirring state to obtain PU impregnation slurry; adding the PU impregnation slurry into an impregnation tank; soaking the base cloth in a soaking tank, and rolling out redundant PU soaking slurry; drying the impregnated base fabric through an oven; sanding the dried fabric, and then washing with water; and drying and rolling the washed fabric to obtain the finished product of the breathable warm-keeping silica aerogel water-based PU environment-friendly fabric. The fabric of the invention has holes formed by using silica sol, and the fabric has a net structure formed by aqueous PU resin and silica sol. The fabric has good elasticity, air permeability, heat preservation and heat insulation, and smooth hand feeling.
Description
Technical Field
The invention belongs to the technical field of textile fabrics, and particularly relates to a production method of a breathable warm-keeping silica aerogel water-based PU environment-friendly fabric.
Background
The water-based environment-friendly synthetic leather is prepared from a water-based Polyurethane (PU) high polymer material, does not contain toxic organic solvents, and is a substitute product of solvent-based synthetic leather; the waterborne polyurethane synthetic leather does not contain any organic solvent in the production process, and is green and environment-friendly. Meanwhile, the water-based polyurethane synthetic leather fabric has more chemical and physical properties than solvent-based synthetic leather.
At present, the hand feeling, style, functionality and the like of the water-based polyurethane synthetic leather fabric generally need to be obtained and improved through after-finishing; however, the post-finishing process is not easy to improve the air permeability and the heat insulation performance of the fabric, and the process is complex, has high production cost and is not beneficial to environmental protection.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a breathable warm-keeping silica aerogel water-based PU environment-friendly fabric and a production method thereof; the fabric prepared by the production method has good elasticity, air permeability, heat preservation and heat insulation, has smooth hand feeling, and can meet the high requirements of the water-based environment-friendly synthetic leather fabric on hand feeling, style and air permeability and heat preservation functions.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
a production method of a breathable warm-keeping silica aerogel water-based PU environment-friendly fabric comprises the following steps:
(1) adding a certain amount of water-based PU resin and deionized water into a batching tank, sequentially adding silicon dioxide sol, color paste and dispersing auxiliary agent under the stirring state, and continuously stirring for 0.5-2h to obtain PU impregnation slurry;
(2) adding the PU impregnation slurry obtained in the step (1) into an impregnation tank; impregnating the base cloth in an impregnation tank, and rolling out redundant PU impregnation slurry through a roller;
(3) drying the impregnated base fabric through an oven;
(4) sanding the dried fabric, and then washing with water;
(5) and drying and rolling the washed fabric to obtain the finished product of the breathable warm-keeping silica aerogel water-based PU environment-friendly fabric.
Further, the PU impregnation slurry comprises the following components in parts by weight: 10-30 parts of water-based PU resin, 20-65 parts of deionized water, 0.1-5 parts of silica sol, 0.1-1 part of color paste and 0.05-1 part of dispersing auxiliary agent.
Further, the solid content of the aqueous PU resin is 30-50%.
Further, in the step (2), the temperature of the PU impregnation slurry is maintained at 30-60 ℃ during impregnation.
Further, the drying temperature in the step (3) is 80-150 ℃.
Further, the drying temperature in the step (5) is 100-150 ℃.
Further, the dispersing auxiliary agent is one or a combination of two of BYK-110 and BYK-163.
The invention also provides the breathable warm-keeping silica aerogel water-based PU environment-friendly fabric prepared by the production method, the fabric is a water-based PU leather fabric, holes formed by using silica sol are formed in the fabric, and the fabric has a net-shaped structure formed by water-based PU resin and the silica sol.
The invention has the beneficial effects that:
the water-based PU leather environment-friendly fabric is prepared by soaking base cloth in PU impregnation slurry, drying, sanding, washing and drying again; the PU impregnation slurry comprises aqueous PU resin, silicon dioxide sol, deionized water, color paste and a dispersing auxiliary agent; the leveling property of the PU impregnation slurry is good due to the addition of the silica sol, and the viscosity of the slurry is not required to be adjusted by adding other additives, so that the environment is protected, and the cost of raw materials is saved; after impregnation treatment is carried out on the base cloth, the silica sol and the aqueous PU resin enter the base cloth; in the drying process, the slurry on the surface of the base cloth is dried to form a film, and the silicon dioxide sol in the base cloth reacts with the aqueous PU resin to form a net structure, so that the elasticity of the fabric is increased, and the final fabric has hand feels like smoothness and the like of the organosilicon modified PU leather; in addition, in the drying process, the silica sol inside the base fabric is finally formed into aerogel through gelation, and after the moisture is completely dried, cavities are left in the net structure, so that the air permeability, the heat preservation and the heat insulation performance of the final fabric are improved, and meanwhile, the thickness of the fabric is also improved.
The production method of the invention does not use organic solvent to obtain the water-based impregnated PU fabric, which is beneficial to environmental protection; moreover, the production method has the advantages of short process flow, low production cost, stable quality of the obtained product and convenient popularization and application.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to specific embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a production method of a breathable warm-keeping silica aerogel water-based PU environment-friendly fabric, which comprises the following steps:
(1) adding a certain amount of water-based PU resin and deionized water into a batching tank, sequentially adding silicon dioxide sol, color paste and dispersing auxiliary agent under the stirring state, and continuously stirring for 0.5-2h to obtain PU impregnation slurry;
(2) adding the PU impregnation slurry obtained in the step (1) into an impregnation tank; impregnating the base cloth in an impregnation tank, and rolling out redundant PU impregnation slurry through a roller;
(3) drying the impregnated base fabric through an oven;
(4) sanding the dried fabric, and then washing with water;
(5) and drying and rolling the washed fabric to obtain the finished product of the breathable warm-keeping silica aerogel water-based PU environment-friendly fabric.
The PU impregnation slurry comprises the following components in parts by weight: 10-30 parts of water-based PU resin, 20-65 parts of deionized water, 0.1-5 parts of silica sol, 0.1-1 part of color paste and 0.05-1 part of dispersing auxiliary agent. Wherein the preparation process of the silica sol comprises the following steps: preparing ammonia water solution with required pH value by using ammonia water and deionized water, placing the ammonia water solution in a container with a stirring device, heating to 60 ℃, slowly dropping tetraethoxysilane into the ammonia water solution, and controlling the molar ratio of tetraethoxysilane to deionized water to be 6: 1, reacting for 4 hours under normal pressure, and finishing the reaction to prepare silicon dioxide sol;
wherein the solid content of the water-based PU resin is 30-50%.
In the step (2), the temperature of the PU impregnation slurry is maintained at 30-60 ℃ during impregnation.
The drying temperature in the step (3) is 80-150 ℃.
The drying temperature in the step (5) is 100-150 ℃.
The dispersing aid is one or a combination of BYK-110 and BYK-163.
Example 1
A production method of a breathable warm-keeping silica aerogel water-based PU environment-friendly fabric comprises the following steps:
(1) adding 10 parts of aqueous PU resin with the solid content of 35 percent and 30 parts of deionized water into a batching tank, sequentially adding 1 part of silica sol, 0.1 part of color paste and 0.1 part of dispersing aid BYK-110 under the stirring state, and continuously stirring for 1 hour to obtain PU impregnation slurry;
(2) adding the PU impregnation slurry obtained in the step (1) into an impregnation tank, and maintaining the temperature of the PU impregnation slurry at 45 ℃; impregnating the base cloth in an impregnation tank, and rolling out redundant PU impregnation slurry through a roller;
(3) drying the impregnated base cloth through an oven at the drying temperature of 100 ℃;
(4) sanding the dried fabric, and then washing with water to remove powder;
(5) and drying the washed fabric at the drying temperature of 110 ℃, and then rolling to obtain the finished product of the breathable warm-keeping silica aerogel water-based PU environment-friendly fabric.
The finished fabric of example 1 is an aqueous PU leather fabric, the interior of the fabric has pores formed by using silica sol, and the fabric has a mesh structure formed by aqueous PU resin and silica sol.
Example 2
A production method of a breathable warm-keeping silica aerogel water-based PU environment-friendly fabric comprises the following steps:
(1) adding 20 parts of aqueous PU resin with the solid content of 35 percent and 55 parts of deionized water into a batching tank, sequentially adding 3 parts of silica sol, 0.5 part of color paste and 0.5 part of dispersing aid BYK-163 under the stirring state, and continuously stirring for 1.5 hours to obtain PU impregnation slurry;
(2) adding the PU impregnation slurry obtained in the step (1) into an impregnation tank, and maintaining the temperature of the PU impregnation slurry at 45 ℃; impregnating the base cloth in an impregnation tank, and rolling out redundant PU impregnation slurry through a roller;
(3) drying the impregnated base cloth through an oven at the drying temperature of 120 ℃;
(4) sanding the dried fabric, and then washing with water to remove powder;
(5) and drying the washed fabric at the drying temperature of 130 ℃, and then rolling to obtain the finished product of the breathable warm-keeping silica aerogel water-based PU environment-friendly fabric.
The finished fabric of this example 2 is an aqueous PU leather fabric, and the inside of the fabric has pores formed by the silica sol, and the fabric has a mesh structure formed by the aqueous PU resin and the silica sol.
Example 3
A production method of a breathable warm-keeping silica aerogel water-based PU environment-friendly fabric comprises the following steps:
(1) adding 30 parts of aqueous PU resin with the solid content of 35% and 65 parts of deionized water into a batching tank, sequentially adding 5 parts of silica sol, 1 part of color paste and 1 part of dispersing aid BYK-163 under the stirring state, and continuously stirring for 2 hours to obtain PU impregnation slurry;
(2) adding the PU impregnation slurry obtained in the step (1) into an impregnation tank, and maintaining the temperature of the PU impregnation slurry at 45 ℃; impregnating the base cloth in an impregnation tank, and rolling out redundant PU impregnation slurry through a roller;
(3) drying the impregnated base cloth through an oven at the drying temperature of 150 ℃;
(4) sanding the dried fabric, and then washing with water to remove powder;
(5) and drying the washed fabric at the drying temperature of 150 ℃, and then rolling to obtain the finished product of the breathable warm-keeping silica aerogel water-based PU environment-friendly fabric.
The finished fabric of this example 3 is an aqueous PU leather fabric, the interior of the fabric has pores formed by the silica sol, and the fabric has a mesh structure formed by the aqueous PU resin and the silica sol.
The air permeability and heat preservation rate of the finished products of the water-based PU leather fabrics of the embodiment 1, the embodiment 2 and the embodiment 3 are tested, and the test results show that the air permeability of the water-based PU leather fabrics of the three embodiments is more than 2500 (ml/cm)2H), the heat preservation rate is more than 75 percent.
The fabric prepared by the production method has good elasticity, air permeability, heat preservation and heat insulation, has smooth hand feeling, and can meet the high requirements of the water-based environment-friendly synthetic leather fabric on hand feeling, style and air permeability and heat preservation functions.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents made by the contents of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (8)
1. A production method of a breathable warm-keeping silica aerogel water-based PU environment-friendly fabric is characterized by comprising the following steps:
(1) adding a certain amount of water-based PU resin and deionized water into a batching tank, sequentially adding silicon dioxide sol, color paste and dispersing auxiliary agent under the stirring state, and continuously stirring for 0.5-2h to obtain PU impregnation slurry;
(2) adding the PU impregnation slurry obtained in the step (1) into an impregnation tank; impregnating the base cloth in an impregnation tank, and rolling out redundant PU impregnation slurry through a roller;
(3) drying the impregnated base fabric through an oven;
(4) sanding the dried fabric, and then washing with water;
(5) and drying and rolling the washed fabric to obtain the finished product of the breathable warm-keeping silica aerogel water-based PU environment-friendly fabric.
2. The breathable warm-keeping silica aerogel water-based PU environment-friendly fabric according to claim 1, wherein the PU impregnation slurry comprises the following components in parts by weight: 10-30 parts of water-based PU resin, 20-65 parts of deionized water, 0.1-5 parts of silica sol, 0.1-1 part of color paste and 0.05-1 part of dispersing auxiliary agent.
3. The breathable warm-keeping silica aerogel aqueous PU environment-friendly fabric according to claim 2, wherein the solid content of the aqueous PU resin is 30-50%.
4. The breathable warm-keeping silica aerogel aqueous PU environment-friendly fabric according to claim 1, wherein in the step (2), the temperature of the PU impregnation slurry is maintained at 30-60 ℃ during impregnation.
5. The breathable warm-keeping silica aerogel aqueous PU environment-friendly fabric according to claim 1, wherein the drying temperature in the step (3) is 80-150 ℃.
6. The breathable warm-keeping silica aerogel aqueous PU environment-friendly fabric according to claim 1, wherein the drying temperature in the step (5) is 100-150 ℃.
7. The breathable warm-keeping silica aerogel aqueous PU environment-friendly fabric according to claim 1, wherein the dispersing auxiliary agent is one or a combination of BYK-110 and BYK-163.
8. The breathable warm-keeping silica aerogel aqueous PU environment-friendly fabric prepared by the production method of any one of claims 1 to 7 is aqueous PU leather fabric, pores formed by silica sol are formed in the fabric, and the fabric has a net structure formed by aqueous PU resin and silica sol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011583061.7A CN112760996A (en) | 2020-12-28 | 2020-12-28 | Breathable and warm-keeping silica aerogel water-based PU environment-friendly fabric and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011583061.7A CN112760996A (en) | 2020-12-28 | 2020-12-28 | Breathable and warm-keeping silica aerogel water-based PU environment-friendly fabric and production method thereof |
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| Publication Number | Publication Date |
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| CN112760996A true CN112760996A (en) | 2021-05-07 |
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| CN202011583061.7A Pending CN112760996A (en) | 2020-12-28 | 2020-12-28 | Breathable and warm-keeping silica aerogel water-based PU environment-friendly fabric and production method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417150A (en) * | 2021-07-08 | 2021-09-21 | 江苏聚杰微纤科技集团股份有限公司 | High-solid-content environment-friendly PU suede leather and preparation method thereof |
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| CN111501359A (en) * | 2019-01-31 | 2020-08-07 | 宁波加利得仿生材料有限公司 | Solvent-free aqueous environment-friendly polishing leather and manufacturing method and manufacturing equipment thereof |
| CN110983804A (en) * | 2019-12-27 | 2020-04-10 | 江苏华峰超纤材料有限公司 | Heat-preservation water-repellent high-color-fastness microfiber clothing leather and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113417150A (en) * | 2021-07-08 | 2021-09-21 | 江苏聚杰微纤科技集团股份有限公司 | High-solid-content environment-friendly PU suede leather and preparation method thereof |
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