CN112391847A - Super-protein skin-feel synthetic leather - Google Patents
Super-protein skin-feel synthetic leather Download PDFInfo
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- CN112391847A CN112391847A CN202011109706.3A CN202011109706A CN112391847A CN 112391847 A CN112391847 A CN 112391847A CN 202011109706 A CN202011109706 A CN 202011109706A CN 112391847 A CN112391847 A CN 112391847A
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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
-
- 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
- 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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- 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 provides super-protein skin-feel synthetic leather, which relates to the technical field of synthetic leather, and consists of a wet-process bass layer, a dry-process polyurethane layer, a grain absorption layer and a skin-feel treatment layer, wherein the wet-process bass layer comprises the following raw materials in parts by weight: 30-35 parts of N, N-dimethylformamide, 0.3-0.5 part of penetrating agent, 0.6-0.8 part of emulsifying agent, 0.5-0.7 part of strong hydrophobic surfactant, 0.1-0.3 part of water-based color paste, 7-9 parts of synthetic fiber powder, 10-12 parts of light calcium powder, 35-45 parts of soft wet-process resin A, 5-7 parts of medium soft wet-process resin B and 4-6 parts of medium modulus wet-process resin C, wherein the dry-process polyurethane layer comprises the following raw materials in parts by weight: compared with the traditional process, the production process of the invention has the advantages of low temperature in the whole production process, low Bass softening point, complete applicability to a flower-absorbing process, reduction in flower-absorbing difficulty, easier formation of grains, production energy consumption saving, reduction in raw material cost and suitability for mass consumers, wherein the soft PU slurry is 40-60 parts and the polyurethane color paste is 10-20 parts.
Description
Technical Field
The invention relates to the technical field of synthetic leather, in particular to super-protein skin-feel synthetic leather.
Background
Synthetic leather refers to a plastic product that simulates the composition and structure of natural leather and can be used as a substitute material for natural leather. Usually, the impregnated non-woven fabric is used as a net layer, and the microporous polyurethane layer is used as a grain layer. The front and back surfaces of the leather are very similar to leather, have certain air permeability and are closer to natural leather than common artificial leather.
The hand feeling of the synthetic leather has gradually become an object of key attention of consumers, the synthetic leather in the market gradually develops towards the direction of soft hand feeling, a protein leather appears in the market in a short period of time, the protein leather attracts extensive attention in the industry, has soft hand feeling, but has the defect of empty feeling when being pinched, and has a larger improvement space.
Disclosure of Invention
The invention aims to provide super-protein skin-feel synthetic leather to solve the technical problems.
In order to solve the technical problems, the invention adopts the following technical scheme: the super-protein skin-feel synthetic leather consists of a wet-process bass layer, a dry-process polyurethane layer, a grain absorption layer and a skin-feel treatment layer, wherein the wet-process bass layer comprises the following raw materials in parts by weight: 30-35 parts of N, N-dimethylformamide, 0.3-0.5 part of penetrating agent, 0.6-0.8 part of emulsifying agent, 0.5-0.7 part of strong hydrophobic surfactant, 0.1-0.3 part of water-based color paste, 7-9 parts of synthetic fiber powder, 10-12 parts of light calcium powder, 35-45 parts of soft wet-process resin A, 5-7 parts of medium soft wet-process resin B and 4-6 parts of medium modulus wet-process resin C, wherein the dry-process polyurethane layer comprises the following raw materials in parts by weight: 40-60 parts of soft PU slurry, 10-20 parts of polyurethane color paste, 30-40 parts of methyl ethyl ketone and 30-40 parts of dimethylformamide.
The invention preferably comprises the following components: the preparation method of the super-protein skin-feel synthetic leather comprises the following steps:
step 1: preparing raw materials: weighing wet-process Bayes layer raw materials according to 30-35 parts of N, N-dimethylformamide, 0.3-0.5 part of penetrating agent, 0.6-0.8 part of emulsifying agent, 0.5-0.7 part of strong hydrophobic surfactant, 0.1-0.3 part of aqueous color paste, 7-9 parts of synthetic fiber powder, 10-12 parts of light calcium powder, 35-45 parts of soft wet-process resin A, 5-7 parts of medium soft wet-process resin B and 4-6 parts of medium modulus wet-process resin C, and weighing dry-process polyurethane layer raw materials according to 40-60 parts of soft PU slurry, 10-20 parts of polyurethane color paste, 30-40 parts of methyl ethyl ketone and 30-40 parts of dimethylformamide for later use;
step 2: preparing a wet coating: uniformly stirring the wet-process Bass layer raw materials weighed in the step 1 by a stirrer, vacuumizing for 60min for defoaming until the viscosity reaches 13000-;
and step 3: manufacturing a wet method base layer: cleaning a 0.65 mm-thick suede base cloth in clear water, ironing the base cloth through an ironing wheel after cleaning, ironing partial water, uniformly coating the wet-process coating prepared in the step 1 on the base cloth, adjusting a coating gap according to the required actual thickness of the bass, solidifying foaming layer slurry through a coagulating liquid in a pre-coagulating tank, washing away residual N, N-dimethylformamide through the clear water, ironing through 12 rounds at 30 ℃, fixing the wide width, drying through a 140-sand-baked oven at 150 ℃, and cooling to prepare the wet-process bass, wherein the integral production line speed is 18-20 m/min.
And 4, step 4: preparing a dry-process polyurethane layer: uniformly mixing the dry-process polyurethane layer raw materials weighed in the step 1 by a stirrer; coating the coating on release paper by a precision table, and drying to obtain a coating layer; then the wet-process bass is placed in an oven at the temperature of 100-120 ℃ to ensure that the bass is heated and softened; and extruding and laminating the dried coating layer and the softened wet base through a double silica gel wheel, and stripping release paper and veneering leather to obtain the leather.
And 5: and (5) performing surface finish treatment.
Step 6: manufacturing the absorption line layer: heating the flower suction machine to 150-.
And 7: preparation of the skin feel treatment layer: and (3) treating a layer of aqueous skin feel treating agent on the texture absorbing layer through a mesh wheel, and drying at the temperature of 120-130 ℃ to obtain the skin feel-friendly surface layer.
The invention preferably comprises the following components: the stirring in the step 2 requires a rotating speed of 1000-2000 r/min, and the stirring time is 80-100 minutes.
The invention preferably comprises the following components: in the step 2, the coagulating liquid is an N, N-dimethylformamide aqueous solution with the content of 17-18%, and the temperature of the coagulating tank is controlled to be 30-36 ℃.
The invention preferably comprises the following components: and the cooling method in the step 3 is to cool the product by a circulating cooling wheel, and the surface temperature of the cooling wheel is controlled between 3 and 5 ℃ for cooling.
The invention preferably comprises the following components: the coating thickness in the step 4 is 0.15mm, and the drying is carried out in an oven at the temperature of 110 ℃ and 120 ℃.
The invention preferably comprises the following components: the stirring in the step 4 requires a rotating speed of 1500-2000 r/min, and the stirring time is 50-70 minutes.
The invention has the beneficial effects that:
compared with the traditional process, the whole production process is lower in temperature, the Bass softening point is lower, the method is completely suitable for a flower absorbing process, the flower absorbing difficulty is reduced, the grains are easier to form, the production energy consumption is saved, the raw material cost can be reduced, and the method is suitable for mass consumers.
Detailed Description
The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
Example 1:
step 1: preparing raw materials: weighing a wet-process base material according to 30 parts of N, N-dimethylformamide, 0.3 part of penetrating agent, 0.6 part of emulsifying agent, 0.5 part of strong-hydrophobicity surfactant, 0.1 part of water-based color paste, 7 parts of synthetic fiber powder, 10 parts of light calcium powder, 35 parts of soft wet-process resin A, 5 parts of medium soft wet-process resin B and 4 parts of medium modulus wet-process resin C, and meanwhile weighing a dry-process polyurethane layer material according to 40 parts of soft PU slurry, 10 parts of polyurethane color paste, 30 parts of methyl ethyl ketone and 30 parts of dimethylformamide for later use;
step 2: preparing a wet coating: uniformly stirring the wet-process Bass layer raw materials weighed in the step 1 by a stirrer, vacuumizing for 60min for defoaming until the viscosity reaches 13000cps, and filtering by using a 60-mesh screen to prepare a wet-process polyurethane coating;
and step 3: manufacturing a wet method base layer: cleaning a leather-like velvet base fabric with the thickness of 0.65mm in clear water, ironing the base fabric through an ironing wheel after cleaning, ironing partial water, uniformly coating the wet-process coating prepared in the step 1 on the base fabric, adjusting a coating gap according to the required actual Bass thickness, solidifying foaming layer slurry through a coagulating liquid in a pre-solidifying tank, washing away residual N, N-dimethylformamide through the clear water, ironing through 12 rounds at 30 ℃, fixing the broadcloth, drying through an oven at 140 ℃, and cooling to prepare the wet-process Bass, wherein the integral production line speed is 18 m/min.
And 4, step 4: preparing a dry-process polyurethane layer: uniformly mixing the dry-process polyurethane layer raw materials weighed in the step 1 by a stirrer; coating the coating on release paper by a precision table, and drying to obtain a coating layer; then placing the wet-process bass in an oven at 100 ℃ to ensure that the bass is heated and softened; and extruding and laminating the dried coating layer and the softened wet base through a double silica gel wheel, and stripping release paper and veneering leather to obtain the leather.
And 5: and (5) performing surface finish treatment.
Step 6: manufacturing the absorption line layer: heating the cotton suction machine to 150 ℃, preheating the leather, quickly spreading the front surface of the preheated leather on the grain pavement of the cotton suction plate, tightly attaching for 30s, removing the leather, and obtaining the grain suction layer.
And 7: preparation of the skin feel treatment layer: and (3) treating a layer of aqueous skin feeling treating agent on the texture absorbing layer through a mesh wheel, and drying at 120 ℃ to obtain the skin-friendly surface layer.
Example 2:
step 1: preparing raw materials: weighing a wet-process Bayes layer raw material according to 33 parts of N, N-dimethylformamide, 0.4 part of penetrating agent, 0.7 part of emulsifying agent, 0.6 part of strong-hydrophobicity surfactant, 0.2 part of water-based color paste, 8 parts of synthetic fiber powder, 11 parts of light calcium powder, 40 parts of soft wet-process resin A, 6 parts of medium-soft wet-process resin B and 5 parts of medium-modulus wet-process resin C, and meanwhile weighing a dry-process polyurethane layer raw material according to 50 parts of soft PU slurry, 15 parts of polyurethane color paste, 35 parts of methyl ethyl ketone and 35 parts of dimethylformamide for later use;
step 2: preparing a wet coating: uniformly stirring the wet-process Bass layer raw materials weighed in the step 1 by a stirrer, vacuumizing for 60min for defoaming until the viscosity reaches 13500cps, and filtering by a 70-mesh screen to obtain a wet-process polyurethane coating;
and step 3: manufacturing a wet method base layer: cleaning a leather-like velvet base fabric with the thickness of 0.65mm in clear water, ironing the base fabric through an ironing wheel after cleaning, ironing partial water, uniformly coating the wet-process coating prepared in the step 1 on the base fabric, adjusting a coating gap according to the required actual thickness of the bass, solidifying foaming layer slurry through a coagulating liquid in a pre-solidifying tank, washing away residual N, N-dimethylformamide through the clear water, ironing through 12 rounds at 30 ℃, fixing the wide width, drying through an oven at 145 ℃, and cooling to prepare the wet-process bass, wherein the integral production line speed is 19 m/min.
And 4, step 4: preparing a dry-process polyurethane layer: uniformly mixing the dry-process polyurethane layer raw materials weighed in the step 1 by a stirrer; coating the coating on release paper by a precision table, and drying to obtain a coating layer; then placing the wet-process bass in an oven at 110 ℃ to ensure that the bass is heated and softened; and extruding and laminating the dried coating layer and the softened wet base through a double silica gel wheel, and stripping release paper and veneering leather to obtain the leather.
And 5: and (5) performing surface finish treatment.
Step 6: manufacturing the absorption line layer: heating the cotton suction machine to 155 ℃, preheating the leather, quickly spreading the front surface of the preheated leather on the grain pavement of the cotton suction plate, tightly adhering for 35s, removing the leather, and obtaining the grain suction layer.
And 7: preparation of the skin feel treatment layer: treating a layer of water-based skin feeling treatment agent on the suction line layer through a mesh wheel, and drying at 125 ℃ to obtain a skin-friendly surface layer
Example 3:
step 1: preparing raw materials: weighing a wet-process Bayes layer raw material according to 35 parts of N, N-dimethylformamide, 0.5 part of penetrating agent, 0.8 part of emulsifying agent, 0.7 part of strong-hydrophobicity surfactant, 0.3 part of water-based color paste, 9 parts of synthetic fiber powder, 12 parts of light calcium powder, 45 parts of soft wet-process resin A, 7 parts of medium-soft wet-process resin B and 6 parts of medium-modulus wet-process resin C, and meanwhile weighing a dry-process polyurethane layer raw material according to 60 parts of soft PU slurry, 20 parts of polyurethane color paste, 40 parts of methyl ethyl ketone and 40 parts of dimethylformamide for later use;
step 2: preparing a wet coating: uniformly stirring the wet-process Bass layer raw materials weighed in the step 1 by a stirrer, vacuumizing for 60min for defoaming until the viscosity reaches 14000cps, and filtering by using a 80-mesh screen to obtain a wet-process polyurethane coating;
and step 3: manufacturing a wet method base layer: cleaning a leather-like velvet base fabric with the thickness of 0.65mm in clear water, ironing the base fabric through an ironing wheel after cleaning, ironing partial water, uniformly coating the wet-process coating prepared in the step 1 on the base fabric, adjusting a coating gap according to the required actual Bass thickness, solidifying foaming layer slurry through a coagulating liquid in a pre-solidifying tank, washing away residual N, N-dimethylformamide through the clear water, ironing through 12 rounds at 30 ℃, fixing the broadcloth, drying through an oven at 150 ℃, cooling, and preparing the wet-process Bass, wherein the integral production line speed is 20 m/min.
And 4, step 4: preparing a dry-process polyurethane layer: uniformly mixing the dry-process polyurethane layer raw materials weighed in the step 1 by a stirrer; coating the coating on release paper by a precision table, and drying to obtain a coating layer; then placing the wet-process bass in an oven at 120 ℃ to ensure that the bass is heated and softened; and extruding and laminating the dried coating layer and the softened wet base through a double silica gel wheel, and stripping release paper and veneering leather to obtain the leather.
And 5: and (5) performing surface finish treatment.
Step 6: manufacturing the absorption line layer: heating the cotton suction machine to 160 ℃, preheating the leather, quickly spreading the front surface of the preheated leather on the grain pavement of the cotton suction plate, tightly adhering for 40s, removing the leather, and obtaining the grain suction layer.
And 7: preparation of the skin feel treatment layer: treating a layer of water-based skin feeling treating agent on the pattern absorbing layer through a mesh wheel, and drying at 130 ℃ to obtain a skin-friendly surface layer
Table 1 ultra-protein skin-feel synthetic leather physical property comparison:
by comparing the hand feeling comfort, cost, skin-friendly feeling and energy consumption of the super-protein skin-feeling synthetic leather prepared in the 3 embodiments, the synthetic leather in embodiment 2 has very comfortable hand feeling, low cost, very good skin-friendly feeling, low energy consumption and very easy grain forming due to the difficulty and fullness of grain forming. The synthetic leather is full; compared with the synthetic leather prepared in other embodiments, embodiment 2 has wider application prospect.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. An ultra-protein skin-feel synthetic leather is characterized in that: the super-protein skin-feel synthetic leather consists of a wet-process bass layer, a dry-process polyurethane layer, an absorption texture layer and a skin-feel treatment layer, wherein the wet-process bass layer comprises the following raw materials in parts by weight: 30-35 parts of N, N-dimethylformamide, 0.3-0.5 part of penetrating agent, 0.6-0.8 part of emulsifying agent, 0.5-0.7 part of strong hydrophobic surfactant, 0.1-0.3 part of water-based color paste, 7-9 parts of synthetic fiber powder, 10-12 parts of light calcium powder, 35-45 parts of soft wet-process resin A, 5-7 parts of medium soft wet-process resin B and 4-6 parts of medium modulus wet-process resin C, wherein the dry-process polyurethane layer comprises the following raw materials in parts by weight: 40-60 parts of soft PU slurry, 10-20 parts of polyurethane color paste, 30-40 parts of methyl ethyl ketone and 30-40 parts of dimethylformamide.
2. An ultra-protein skin-feel synthetic leather according to claim 1, wherein: the preparation method comprises the following steps:
step 1: preparing raw materials: weighing wet-process Bayes layer raw materials according to 30-35 parts of N, N-dimethylformamide, 0.3-0.5 part of penetrating agent, 0.6-0.8 part of emulsifying agent, 0.5-0.7 part of strong hydrophobic surfactant, 0.1-0.3 part of aqueous color paste, 7-9 parts of synthetic fiber powder, 10-12 parts of light calcium powder, 35-45 parts of soft wet-process resin A, 5-7 parts of medium soft wet-process resin B and 4-6 parts of medium modulus wet-process resin C, and weighing dry-process polyurethane layer raw materials according to 40-60 parts of soft PU slurry, 10-20 parts of polyurethane color paste, 30-40 parts of methyl ethyl ketone and 30-40 parts of dimethylformamide for later use;
step 2: preparing a wet coating: uniformly stirring the wet-process Bass layer raw materials weighed in the step 1 by a stirrer, vacuumizing for 60min for defoaming until the viscosity reaches 13000-;
and step 3: manufacturing a wet method base layer: cleaning a 0.65 mm-thick suede base cloth in clear water, ironing the base cloth through an ironing wheel after cleaning, ironing partial water, uniformly coating the wet-process coating prepared in the step 1 on the base cloth, adjusting a coating gap according to the required actual thickness of the bass, solidifying foaming layer slurry through a coagulating liquid in a pre-solidifying tank, washing away residual N, N-dimethylformamide through the clear water, ironing through 12 rounds at 30 ℃, fixing the wide width, drying through a 140-sand-baked oven at 150 ℃, and cooling to prepare the wet-process bass, wherein the integral production line speed is 18-20 m/min;
and 4, step 4: preparing a dry-process polyurethane layer: uniformly mixing the dry-process polyurethane layer raw materials weighed in the step 1 by a stirrer; coating the coating on release paper by a precision table, and drying to obtain a coating layer; then the wet-process bass is placed in an oven at the temperature of 100-120 ℃ to ensure that the bass is heated and softened; extruding and laminating the dried coating layer and the softened wet-process bass by a double-silica-gel wheel, and stripping release paper and veneering leather to obtain leather;
and 5: surface finish treatment;
step 6: manufacturing the absorption line layer: heating the flower suction machine to 150-;
and 7: preparation of the skin feel treatment layer: and (3) treating a layer of aqueous skin feel treating agent on the texture absorbing layer through a mesh wheel, and drying at the temperature of 120-130 ℃ to obtain the skin feel-friendly surface layer.
3. An ultra-protein skin-feel synthetic leather according to claim 2, wherein: the stirring in the step 2 requires a rotating speed of 1000-2000 r/min, and the stirring time is 80-100 minutes.
4. The method for making the ultra-protein skin-feel synthetic leather according to claim 2, wherein the method comprises the following steps: in the step 2, the coagulating liquid is an N, N-dimethylformamide aqueous solution with the content of 17-18%, and the temperature of the coagulating tank is controlled to be 30-36 ℃.
5. An ultra-protein skin-feel synthetic leather according to claim 2, wherein: and the cooling method in the step 3 is to cool the product by a circulating cooling wheel, and the surface temperature of the cooling wheel is controlled between 3 and 5 ℃ for cooling.
6. An ultra-protein skin-feel synthetic leather according to claim 2, wherein: the coating thickness in the step 4 is 0.15mm, and the drying is carried out in an oven at the temperature of 110 ℃ and 120 ℃.
7. An ultra-protein skin-feel synthetic leather according to claim 2, wherein: the stirring in the step 4 requires a rotating speed of 1500-2000 r/min, and the stirring time is 50-70 minutes.
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| CN202011109706.3A CN112391847A (en) | 2020-10-16 | 2020-10-16 | Super-protein skin-feel synthetic leather |
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| CN202011109706.3A CN112391847A (en) | 2020-10-16 | 2020-10-16 | Super-protein skin-feel synthetic leather |
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| CN113152116A (en) * | 2021-04-29 | 2021-07-23 | 浙江旭川树脂有限公司 | Method for preparing hydrophobic PU leather by plasma technology |
| CN113668254A (en) * | 2021-07-27 | 2021-11-19 | 安安(中国)有限公司 | Vacuum pattern-absorbing sports shoe leather production method |
| CN115748264A (en) * | 2022-11-25 | 2023-03-07 | 清远市齐力合成革有限公司 | Protein-like organic silicon sponge tender-feeling synthetic leather and preparation method thereof |
| CN115821594A (en) * | 2022-12-05 | 2023-03-21 | 清远市齐力合成革有限公司 | Bass for permeable synthetic leather and preparation method thereof |
| CN116122054A (en) * | 2023-02-28 | 2023-05-16 | 清远市齐力合成革有限公司 | Full-aqueous polyurethane synthetic leather and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113152116A (en) * | 2021-04-29 | 2021-07-23 | 浙江旭川树脂有限公司 | Method for preparing hydrophobic PU leather by plasma technology |
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| CN113668254A (en) * | 2021-07-27 | 2021-11-19 | 安安(中国)有限公司 | Vacuum pattern-absorbing sports shoe leather production method |
| CN115748264A (en) * | 2022-11-25 | 2023-03-07 | 清远市齐力合成革有限公司 | Protein-like organic silicon sponge tender-feeling synthetic leather and preparation method thereof |
| CN115821594A (en) * | 2022-12-05 | 2023-03-21 | 清远市齐力合成革有限公司 | Bass for permeable synthetic leather and preparation method thereof |
| CN116122054A (en) * | 2023-02-28 | 2023-05-16 | 清远市齐力合成革有限公司 | Full-aqueous polyurethane synthetic leather and preparation method thereof |
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