CN112301752A - Preparation process of water-based embossed clothing leather - Google Patents
Preparation process of water-based embossed clothing leather Download PDFInfo
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- CN112301752A CN112301752A CN202011147678.4A CN202011147678A CN112301752A CN 112301752 A CN112301752 A CN 112301752A CN 202011147678 A CN202011147678 A CN 202011147678A CN 112301752 A CN112301752 A CN 112301752A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
- D06N3/145—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes two or more layers of polyurethanes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0043—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by their foraminous structure; Characteristics of the foamed layer or of cellular layers
- D06N3/005—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by their foraminous structure; Characteristics of the foamed layer or of cellular layers obtained by blowing or swelling agent
-
- 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
-
- 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
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—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
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1635—Elasticity
-
- 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
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1642—Hardnes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2211/00—Specially adapted uses
- D06N2211/10—Clothing
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The invention discloses a preparation process of aqueous embossing clothing leather, which comprises the steps of uniformly stirring 100 parts by weight of aqueous polyurethane wet-process resin, 0.5-1.0 part by weight of dispersant and 10-20 parts by weight of wood powder, adding 4-6 parts by weight of foaming agent, 0.5-2 parts by weight of aqueous color paste and 1-2 parts by weight of thickener to obtain wet-process slurry, drying and semi-drying a base fabric after impregnation, foaming the wet-process slurry to 1.8-1.9 times, then coating the base fabric with the wet-process slurry, solidifying, rolling, washing and drying to obtain wet-process bass, and uniformly stirring 100 parts by weight of aqueous polyurethane dry-process resin, 0.5-1.0 part by weight of dispersant, 5-8 parts by weight of aqueous color paste and 1-2 parts by weight of thickener to form dry-process fabric and dry-process base material; the dry-method fabric is coated and scraped on release paper, dried, then coated and scraped with dry-method bottom materials, then bonded with wet-method bass, and separated from the release paper, and then embossed and kneaded to obtain the finished product.
Description
Technical Field
The invention relates to the field of synthetic leather manufacturing, in particular to a preparation process of water-based embossed clothing leather.
Background
The artificial leather is frequently used in the field of clothing production at present, patterns are often required to be formed on the surface of the artificial leather for making the clothing more attractive, the conventional patterns on the surface of the artificial leather are formed by release paper with patterns on a dry-method surface layer, the patterns lack three-dimensional sense, therefore, embossed leather appears, namely, embossing treatment is carried out on the surface of the artificial leather by embossing rollers to form the patterns with three-dimensional sense, the artificial leather material in the production process of the embossed leather at present is not obvious in three-dimensional sense of the patterns embossed by the embossing rollers due to the lack of elasticity, the integral patterns are poor in aesthetic property, the artificial leather is hard in hand feeling and not soft enough, the conventional embossed clothing leather is prepared by dissolving polyurethane resin by a solvent, DMF in the solvent has toxicity, the artificial leather has stimulating effect on eyes, skin and respiratory tract during production, and harmful substances can be volatilized after the finished product is used for a long time, it pollutes environment and is not good for human health.
Disclosure of Invention
In order to overcome the defects, the invention provides the preparation process of the water-based embossed clothing leather, and the clothing leather produced by the process method has strong pattern stereoscopic impression, soft hand feeling and pure water property and is environment-friendly.
The invention adopts the technical scheme for solving the technical problems that: a preparation process of water-based embossed clothing leather comprises the following specific steps:
the method comprises the following steps: mixing ingredients by a wet method:
a. adding 100 weight parts of aqueous polyurethane wet-process resin into a reaction kettle, stirring, adding 0.5-1.0 weight part of dispersant, slowly adding 10-20 weight parts of wood powder, and uniformly stirring;
b. b, adding 4-6 parts by weight of foaming agent into the mixture obtained in the step a, stirring uniformly, adding 0.5-2 parts by weight of water-based color paste, stirring uniformly, and slowly adding 1-2 parts by weight of thickening agent, and stirring uniformly;
c. b, performing viscosity detection on the mixture obtained in the step b, determining that the viscosity index of the mixture reaches 20000-25000cps under the temperature condition of being lower than 40 ℃ to be qualified, and filtering the qualified mixture for later use;
step two: and (3) wet bass production:
soaking the base cloth in 1.5-2% acid water solution, drying to form textile fabric fibers, foaming the wet slurry filtered in the step one to a multiplying power of 1.8-1.9 by a foaming machine, coating the foamed wet slurry on the textile fabric fibers, soaking the textile fabric fibers in 4.5-5% acid water solution for solidification, and sequentially performing at least one water rolling procedure, a water washing procedure and a drying procedure to obtain wet base cloth;
step three: mixing ingredients by a dry method:
mixing and stirring 100 parts by weight of aqueous polyurethane dry-process resin, 0.5-1.0 part by weight of dispersant and 5-8 parts by weight of aqueous color paste uniformly, adding 1-2 parts by weight of thickener, and thickening to a viscosity value of 5000-6000CPS to form a dry-process fabric;
mixing and stirring 100 parts by weight of waterborne polyurethane dry-process resin, 0.5-1.0 part by weight of dispersant and 5-8 parts by weight of waterborne color paste uniformly, adding 1-2 parts by weight of thickener, and thickening to a viscosity value of 15000-20000CPS to form a dry-process bottom material;
step four: dry-process veneering:
coating and scraping the dry-process fabric prepared in the third step on release paper with patterns, drying to form a dry-process surface layer, coating and scraping the dry-process primer on the surface of the dry-process surface layer, then adhering the wet-process bass obtained in the second step on the dry-process primer, and separating the dry-process primer from the release paper;
step five: embossing:
heating the product obtained in the third step, and embossing the dry-process surface layer by an embossing roller with patterns to obtain a semi-finished product with patterns;
step six: and (3) kneading veins:
soaking the semi-finished product obtained in the fifth step in clear water, extruding the water, cutting the semi-finished product into sections with the length of about 40 meters, and putting the sections into a dryer for kneading and drying;
step seven: and (6) inspecting a finished product.
As a further improvement of the invention, in the step a of the step one, 100 parts by weight of the aqueous polyurethane wet-process resin is added into a reaction kettle and stirred at the speed of 300-.
As a further improvement of the invention, in the step one b, after the foaming agent is added, the mixture is stirred for about 5 minutes at the rotating speed of 300-400 r/min, and then the aqueous color paste is added.
As a further improvement of the invention, the step one b is to slowly add the thickening agent in steps, and to control the adding speed by observing the dispersion condition during the thickening process of the mixture, and the rotating speed of the reaction kettle is controlled at 600 revolutions per minute during the adding of the thickening agent.
As a further improvement of the invention, the acid aqueous solution in the second step is oxalic acid aqueous solution or formic acid aqueous solution.
As a further improvement of the invention, the base cloth pretreated in the second step is semi-dried by a blanching wheel with the temperature of 100 ℃.
As a further improvement of the invention, in the fourth step, the dry-method fabric is dried in an oven, and the speed of the dry-method fabric is 10-15 m/min.
As a further improvement of the invention, the product obtained in the third step is heated to 190-200 ℃ during the embossing, frozen water with the temperature of 3-5 ℃ is passed through an embossing roller, and the embossing speed is 10-12 m/min.
As a further improvement of the method, in the sixth step, the drying temperature is 70 ℃, and the drying time is 35-45 minutes.
The invention has the beneficial effects that: according to the invention, the wet slurry is foamed and then is coated and scraped on the impregnated base fabric, and then the dry slurry is coated and scraped, so that the artificial leather has high softness and good elasticity, patterns formed after subsequent embossing have strong three-dimensional sense, the whole body is soft and attractive, the patterns are vivid and not hard, the artificial leather is soft and close-fitting, the wearing is comfortable, the artificial leather is made of pure water material, DMF (dimethyl formamide) and other solvents are not contained, the volatilization of harmful substances is avoided, and the artificial leather is beneficial to human health and environmental protection.
Drawings
FIG. 1 is a structure diagram of an interlayer of water-based embossed clothing leather prepared by the invention.
Base cloth layer-3 wet method bass layer-2 dry method faced layer-1
Embossed layer-4
Detailed Description
Example (b): a preparation process of water-based embossed clothing leather comprises the following specific steps:
the method comprises the following steps: wet mixing materials:
wet coating and scraping materials were prepared as follows:
a. adding the wet-process waterborne polyurethane wet-process resin into a reaction kettle, stirring at the speed of 300-;
b. b, adding a foaming agent into the mixture obtained in the step a, reducing the stirring speed of the reaction kettle to 400 revolutions per minute, stirring for 5 minutes, adding the aqueous color paste after stirring uniformly, fully stirring uniformly, slowly adding the thickening agent, and observing the dispersion condition in the thickening process to control the adding speed, wherein the rotating speed is controlled at 600 revolutions per minute;
c. b, performing viscosity detection on the mixture obtained in the step b, determining that the viscosity index of the mixture reaches 20000-25000cps under the temperature condition of being lower than 40 ℃ to be qualified, and filtering the qualified mixture for later use;
step two: and (3) wet bass production:
soaking the base cloth in oxalic acid aqueous solution with the mass percentage concentration of 1.5-2%, drying the soaked base cloth by a hot ironing wheel with the temperature of 100 ℃ to be half-dried, then foaming the wet-process slurry filtered in the step one to the multiplying power of 1.8-1.9 by a foaming machine, coating the foamed wet-process slurry on the half-dried base cloth, soaking the base cloth in oxalic acid aqueous solution with the mass percentage concentration of 4.5-5% for solidification, then performing at least one water squeezing process, washing and drying to obtain wet-process Bass, wherein the vehicle speed is 12-14 m/min;
step three: mixing ingredients by a dry method:
the dry-process fabric is prepared according to the following table:
the dry-process bottom materials are prepared according to the following table:
step four: dry-process veneering:
coating and scraping the dry-process fabric prepared in the third step on release paper with patterns, drying the dry-process fabric by an oven and then coating and scraping the dry-process primer, adhering the wet-process bass obtained in the second step on the dry-process primer, separating the wet-process bass from the release paper after drying, and controlling the speed to be 10-15 m/min;
step five: embossing:
heating the product obtained in the fourth step to 190-200 ℃, then passing 3-5 ℃ of chilled water through a patterned embossing roller, enabling the embossing roller to act on the dry laminated surface layer of the heated product by using pressure, and obtaining a semi-finished product with a full pattern at the speed of 10-12 m/min;
step six: kneading veins
Soaking the semi-finished water-based leather prepared in the fifth step in clear water, extruding and cutting the water into sections with the length of about 40 meters, and putting the sections into a dryer for kneading and drying, wherein the drying temperature is 70 ℃, and the drying time is about 40 minutes;
step seven: and (6) inspecting a finished product.
Claims (9)
1. A preparation process of water-based embossed clothing leather is characterized by comprising the following steps: the method comprises the following specific steps:
the method comprises the following steps: mixing ingredients by a wet method:
a. adding 100 weight parts of aqueous polyurethane wet-process resin into a reaction kettle, stirring, adding 0.5-1.0 weight part of dispersant, slowly adding 10-20 weight parts of wood powder, and uniformly stirring;
b. b, adding 4-6 parts by weight of foaming agent into the mixture obtained in the step a, stirring uniformly, adding 0.5-2 parts by weight of water-based color paste, stirring uniformly, and slowly adding 1-2 parts by weight of thickening agent, and stirring uniformly;
c. b, performing viscosity detection on the mixture obtained in the step b, determining that the viscosity index of the mixture reaches 20000-25000cps under the temperature condition of being lower than 40 ℃ to be qualified, and filtering the qualified mixture for later use;
step two: and (3) wet bass production:
soaking the base cloth in 1.5-2% acid water solution, drying to form textile fabric fibers, foaming the wet slurry filtered in the step one to a multiplying power of 1.8-1.9 by a foaming machine, coating the foamed wet slurry on the textile fabric fibers, soaking the textile fabric fibers in 4.5-5% acid water solution for solidification, and sequentially performing at least one water rolling procedure, a water washing procedure and a drying procedure to obtain wet base cloth;
step three: mixing ingredients by a dry method:
mixing and stirring 100 parts by weight of aqueous polyurethane dry-process resin, 0.5-1.0 part by weight of dispersant and 5-8 parts by weight of aqueous color paste uniformly, adding 1-2 parts by weight of thickener, and thickening to a viscosity value of 5000-6000CPS to form a dry-process fabric;
mixing and stirring 100 parts by weight of waterborne polyurethane dry-process resin, 0.5-1.0 part by weight of dispersant and 5-8 parts by weight of waterborne color paste uniformly, adding 1-2 parts by weight of thickener, and thickening to a viscosity value of 15000-20000CPS to form a dry-process bottom material;
step four: dry-process veneering:
coating and scraping the dry-process fabric prepared in the third step on release paper with patterns, drying to form a dry-process surface layer, coating and scraping the dry-process primer on the surface of the dry-process surface layer, then adhering the wet-process bass obtained in the second step on the dry-process primer, and separating the dry-process primer from the release paper;
step five: embossing:
heating the product obtained in the third step, and embossing the dry-process surface layer by an embossing roller with patterns to obtain a semi-finished product with patterns;
step six: and (3) kneading veins:
soaking the semi-finished product obtained in the fifth step in clear water, extruding the water, cutting the semi-finished product into sections with the length of about 40 meters, and putting the sections into a dryer for kneading and drying;
step seven: and (6) inspecting a finished product.
2. The process for preparing aqueous embossed clothing leather according to claim 1, wherein the process comprises the following steps: in the step a, 100 parts by weight of aqueous polyurethane wet-process resin is added into a reaction kettle and stirred at the speed of 300-.
3. The process for preparing aqueous embossed clothing leather according to claim 1, wherein the process comprises the following steps: in the step one b, the foaming agent is added, then the mixture is stirred for about 5 minutes at the rotating speed of 300-400 rpm, and then the aqueous color paste is added.
4. The process for preparing aqueous embossed clothing leather according to claim 1, wherein the process comprises the following steps: and c, slowly adding the thickening agent in the first step b, and observing the dispersion condition to control the adding speed in the thickening process of the mixture, wherein the rotating speed of the reaction kettle is controlled at 600 revolutions per minute in the thickening process of the mixture.
5. The process for preparing aqueous space sports shoe leather according to claim 1, characterized in that: and the acid water solution in the second step is oxalic acid water solution or formic acid water solution.
6. The process for preparing aqueous space sports shoe leather according to claim 1, characterized in that: and (5) drying the pretreated base cloth in the second step by a hot ironing wheel with the temperature of 100 ℃ to be semi-dry.
7. The process for preparing aqueous space sports shoe leather according to claim 1, characterized in that: and in the fourth step, drying the fabric in a drying oven by a dry method, wherein the speed of the dry method facing is 10-15 m/min.
8. The process for preparing aqueous space sports shoe leather according to claim 1, characterized in that: and heating the product obtained in the third step to 190-.
9. The process for preparing aqueous space sports shoe leather according to claim 1, characterized in that: and in the sixth step, the drying temperature is 70 ℃, and the drying time is 35-45 minutes.
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| CN202011147678.4A CN112301752A (en) | 2020-10-23 | 2020-10-23 | Preparation process of water-based embossed clothing leather |
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| CN202011147678.4A CN112301752A (en) | 2020-10-23 | 2020-10-23 | Preparation process of water-based embossed clothing leather |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115162012A (en) * | 2022-05-13 | 2022-10-11 | 温州同赢科技有限公司 | Soft synthetic leather and preparation method thereof |
| WO2023149799A1 (en) | 2022-02-03 | 2023-08-10 | Stahl International B.V. | Process for preparing a multi-layered composite suitable for making polyurethane synthetic leather |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110670374A (en) * | 2019-09-19 | 2020-01-10 | 昆山协孚新材料股份有限公司 | Preparation process of ecological synthetic leather for water-based super-soft clothes |
-
2020
- 2020-10-23 CN CN202011147678.4A patent/CN112301752A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110670374A (en) * | 2019-09-19 | 2020-01-10 | 昆山协孚新材料股份有限公司 | Preparation process of ecological synthetic leather for water-based super-soft clothes |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023149799A1 (en) | 2022-02-03 | 2023-08-10 | Stahl International B.V. | Process for preparing a multi-layered composite suitable for making polyurethane synthetic leather |
| NL2030817B1 (en) * | 2022-02-03 | 2023-08-11 | Stahl Int B V | Process for preparing a multi-layered composite suitable for making polyurethane synthetic leather |
| CN115162012A (en) * | 2022-05-13 | 2022-10-11 | 温州同赢科技有限公司 | Soft synthetic leather and preparation method thereof |
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