CN111139658A - Synthetic leather solvent-free microfiber high-gloss finish polyurethane and preparation method thereof - Google Patents
Synthetic leather solvent-free microfiber high-gloss finish polyurethane and preparation method thereof Download PDFInfo
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- CN111139658A CN111139658A CN201911318561.5A CN201911318561A CN111139658A CN 111139658 A CN111139658 A CN 111139658A CN 201911318561 A CN201911318561 A CN 201911318561A CN 111139658 A CN111139658 A CN 111139658A
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- 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
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- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0004—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using ultra-fine two-component fibres, e.g. island/sea, or ultra-fine one component fibres (< 1 denier)
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- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
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- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
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- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0065—Organic pigments, e.g. dyes, brighteners
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- 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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Abstract
The invention discloses a solvent-free microfiber high-gloss finish polyurethane for synthetic leather, which comprises a surface layer polyurethane layer, a middle polyurethane layer, a polyether type solvent-free polyurethane layer and microfiber polyurethane synthetic leather, wherein: the surface layer polyurethane layer comprises polycaprolactone-polyether composite polyurethane resin, polyvinyl chloride powder, a microporous functional auxiliary agent, dimethylformamide, a water-splashing oil agent, a solvent type pigment, a leveling agent and a curing agent; the middle polyurethane layer comprises polyether polyester composite polyurethane resin, a microporous functional additive, a water-soluble functional additive, a water-splashing oil agent, dimethylformamide, a pigment, a flatting agent and a curing agent; the polyether type solvent-free polyurethane layer comprises polytetrahydrofuran dihydric alcohol, a microporous functional auxiliary agent, a water-soluble functional auxiliary agent, a chain extender, a filler, a catalyst, an isocyanate prepolymer and a curing agent. The solvent-free microfiber high-gloss finish polyurethane for synthetic leather has good corrosion resistance and physical properties.
Description
Technical Field
The invention belongs to the technical field of synthetic leather, and particularly relates to solvent-free super-fiber high-gloss finish polyurethane for synthetic leather and a preparation method thereof.
Background
The superfine fiber synthetic leather is a composite material of superfine fibers and polyurethane. The superfine fiber has fineness and structure similar to those of collagen fiber, so that the superfine fiber has the characteristics similar to those of natural leather in the aspects of surface morphology and mechanical properties. The microfiber leather made by compounding superfine fibers and polyurethane has the appearance and performance similar to natural leather, and is the most similar synthetic leather to genuine leather at present.
However, the synthetic leather is inferior to natural leather in air permeability, and can generate stuffy and hot, cold and wet feelings, and meanwhile, the corrosion resistance degree of the synthetic leather still has certain limitation.
Disclosure of Invention
The invention aims to provide synthetic leather solvent-free microfiber high-gloss finish polyurethane and a preparation method thereof, so as to make up for the defects of the prior art.
In order to solve the problems, the technical scheme adopted by the invention is as follows: the utility model provides a synthetic leather solventless microfiber high gloss finish polyurethane, this synthetic leather solventless microfiber high gloss finish polyurethane includes surface course polyurethane layer, middle polyurethane layer, polyether type solventless polyurethane layer, microfiber polyurethane synthetic leather, wherein:
the surface layer polyurethane layer is prepared by mixing surface layer polyurethane slurry consisting of the following components in parts by weight: 80 parts of polycaprolactone-polyether composite polyurethane resin, 10-14 parts of polyvinyl chloride powder, 1-2 parts of a microporous functional auxiliary agent, 45-60 parts of dimethylformamide, 2-4 parts of water-splashing oil agent, 12-14 parts of solvent type pigment, 0.1-0.3 part of a flatting agent and 4-6 parts of a curing agent;
the intermediate polyurethane layer is prepared by mixing intermediate polyurethane slurry consisting of the following components in parts by weight: 80 parts of polyether polyester composite polyurethane resin, 2-3 parts of microporous functional auxiliary, 1-2 parts of water-soluble functional auxiliary, 1-3 parts of water-splashing oil agent, 20-30 parts of dimethylformamide, 10-12 parts of pigment, 0.4-0.6 part of flatting agent and 4-6 parts of curing agent;
the polyether type solvent-free polyurethane layer is prepared by mixing polyether type solvent-free polyurethane slurry consisting of the following components in parts by weight: 80 parts of polytetrahydrofuran diol, 2-3 parts of microporous functional auxiliary agent, 1-2 parts of water-soluble functional auxiliary agent, 14-16 parts of chain extender, 40-50 parts of filler, 0.1-0.3 part of catalyst, 80-100 parts of isocyanate prepolymer and 4-6 parts of curing agent.
Preferably, the surface layer polyurethane layer is prepared by mixing surface layer polyurethane slurry consisting of the following components in parts by weight: 80 parts of polycaprolactone-polyether composite polyurethane resin, 12 parts of polyvinyl chloride powder, 1 part of a microporous functional assistant, 50 parts of dimethylformamide, 3 parts of a water-splashing oil agent, 13 parts of a solvent type pigment, 0.12 part of a flatting agent and 5 parts of a curing agent.
Preferably, the intermediate polyurethane layer is prepared by mixing the following intermediate polyurethane slurry consisting of the following components in parts by weight: 80 parts of polyether-polyester composite polyurethane resin, 2 parts of microporous functional additive, 1 part of water-soluble functional additive, 2 parts of water-splashing oil agent, 25 parts of dimethylformamide, 11 parts of pigment, 0.5 part of flatting agent and 5 parts of curing agent.
Preferably, the polyether type solvent-free polyurethane layer is prepared by mixing polyether type solvent-free polyurethane slurry consisting of the following components in parts by weight: 80 parts of polytetrahydrofuran diol, 1 part of microporous functional auxiliary, 1 part of water-soluble functional auxiliary, 15 parts of chain extender, 45 parts of filler, 0.2 part of catalyst, 90 parts of isocyanate prepolymer and 5 parts of curing agent.
Preferably, the water-and-oil repellent agent is one or a mixture of two of a salt-type surfactant containing long-chain alkane and a fluorine-containing surfactant.
Preferably, the solvent type pigment is one or a mixture of two or more of wet color paste, pigment and color master slice.
Preferably, the leveling agent is one or a mixture of two of a surfactant containing organic silicon and a silicone surfactant.
Preferably, the microporous functional assistant is one or a mixture of activated carbon and fluff powder.
Preferably, the water-soluble functional auxiliary agent is one or a mixture of more than two of sulfate, hydrochloride, water-soluble protein powder and cyclodextrin.
A preparation method of synthetic leather solvent-free microfiber high gloss finish polyurethane comprises the following steps:
s1: firstly, coating a surface layer polyurethane slurry on a high-gloss film, and drying to form a surface layer polyurethane layer, wherein the drying temperature is kept between 110 and 120 ℃;
s2: coating the intermediate layer polyurethane slurry on the surface layer polyurethane layer, drying, and forming an intermediate polyurethane layer above the surface layer polyurethane layer, wherein the drying temperature is kept at 120-130 ℃;
s3: and coating the polyether type solvent-free polyurethane slurry on the intermediate polyurethane layer to form a polyether type solvent-free polyurethane layer, laminating the fixed-width microfiber polyurethane synthetic leather and the polyether type solvent-free polyurethane layer by using a compression roller, then sending the laminated layers into an oven for curing, rolling the laminated layers together, curing the laminated layers in a curing chamber, and finally stripping the highlight mirror surface film to obtain the solvent-free highlight paint surface microfiber polyurethane synthetic leather.
The invention has the technical effects and advantages that: according to the solvent-free microfiber high-gloss finish polyurethane and the preparation method thereof, the polyvinyl chloride powder is added into the surface layer polyurethane layer, so that the corrosion resistance of the surface layer polyurethane can be improved by utilizing the better solvent resistance of polyvinyl chloride, the damage caused in daily life is reduced, and meanwhile, the microporous functional auxiliary agent is added into the middle polyurethane layer, the polyether type solvent-free polyurethane layer and the surface layer polyurethane layer, so that the synthetic leather has a better air permeability function and better physical properties.
Detailed Description
The technical scheme of the invention is further explained by combining the embodiment as follows:
example 1
The utility model provides a synthetic leather solventless microfiber high gloss finish polyurethane, this synthetic leather solventless microfiber high gloss finish polyurethane includes surface course polyurethane layer, middle polyurethane layer, polyether type solventless polyurethane layer, microfiber polyurethane synthetic leather, wherein:
the surface layer polyurethane layer is prepared by mixing surface layer polyurethane slurry consisting of the following components in parts by weight: 80 parts of polycaprolactone-polyether composite polyurethane resin, 10 parts of polyvinyl chloride powder, 1 part of a microporous functional assistant, 45 parts of dimethylformamide, 2 parts of a water-splashing oil agent, 12 parts of a solvent type pigment, 0.1 part of a flatting agent and 4 parts of a curing agent;
the intermediate polyurethane layer is prepared by mixing intermediate polyurethane slurry consisting of the following components in parts by weight: 80 parts of polyether-polyester composite polyurethane resin, 2 parts of microporous functional additive, 1 part of water-soluble functional additive, 1 part of water-splashing oil agent, 20 parts of dimethylformamide, 10 parts of pigment, 0.4 part of flatting agent and 4 parts of curing agent;
the polyether type solvent-free polyurethane layer is prepared by mixing polyether type solvent-free polyurethane slurry consisting of the following components in parts by weight: 80 parts of polytetrahydrofuran diol, 2 parts of microporous functional auxiliary, 1 part of water-soluble functional auxiliary, 14 parts of chain extender, 40 parts of filler, 0.1 part of catalyst, 80 parts of isocyanate prepolymer and 4 parts of curing agent.
Specifically, the water-and-oil repellent agent is a salt surfactant containing long-chain alkane.
Specifically, the solvent type pigment is wet color paste.
Specifically, the leveling agent is a surfactant containing organic silicon.
Specifically, the microporous functional assistant is activated carbon.
Specifically, the water-soluble functional auxiliary is sulfate.
A preparation method of synthetic leather solvent-free microfiber high gloss finish polyurethane comprises the following steps:
s1: firstly, coating a surface layer polyurethane slurry on a high-gloss film, and drying to form a surface layer polyurethane layer, wherein the drying temperature is kept between 110 and 120 ℃;
s2: coating the intermediate layer polyurethane slurry on the surface layer polyurethane layer, drying, and forming an intermediate polyurethane layer above the surface layer polyurethane layer, wherein the drying temperature is kept at 120-130 ℃;
s3: and coating the polyether type solvent-free polyurethane slurry on the intermediate polyurethane layer to form a polyether type solvent-free polyurethane layer, laminating the fixed-width microfiber polyurethane synthetic leather and the polyether type solvent-free polyurethane layer by using a compression roller, then sending the laminated layers into an oven for curing, rolling the laminated layers together, curing the laminated layers in a curing chamber, and finally stripping the highlight mirror surface film to obtain the solvent-free highlight paint surface microfiber polyurethane synthetic leather.
Example 2
The utility model provides a synthetic leather solventless microfiber high gloss finish polyurethane, this synthetic leather solventless microfiber high gloss finish polyurethane includes surface course polyurethane layer, middle polyurethane layer, polyether type solventless polyurethane layer, microfiber polyurethane synthetic leather, wherein:
the surface layer polyurethane layer is prepared by mixing surface layer polyurethane slurry consisting of the following components in parts by weight: 80 parts of polycaprolactone-polyether composite polyurethane resin, 12 parts of polyvinyl chloride powder, 2 parts of a microporous functional additive, 50 parts of dimethylformamide, 3 parts of a water-splashing oil agent, 13 parts of a solvent type pigment, 0.12 part of a flatting agent and 5 parts of a curing agent.
The intermediate polyurethane layer is prepared by mixing intermediate polyurethane slurry consisting of the following components in parts by weight: 80 parts of polyether-polyester composite polyurethane resin, 2 parts of microporous functional additive, 1 part of water-soluble functional additive, 2 parts of water-splashing oil agent, 25 parts of dimethylformamide, 11 parts of pigment, 0.5 part of flatting agent and 5 parts of curing agent.
The polyether type solvent-free polyurethane layer is prepared by mixing polyether type solvent-free polyurethane slurry consisting of the following components in parts by weight: 80 parts of polytetrahydrofuran diol, 1 part of microporous functional auxiliary, 1 part of water-soluble functional auxiliary, 15 parts of chain extender, 45 parts of filler, 0.2 part of catalyst, 90 parts of isocyanate prepolymer and 5 parts of curing agent.
Specifically, the water-and-oil repellent agent is one or a mixture of two of a salt surfactant containing long-chain alkane and a fluorine-containing surfactant.
Specifically, the solvent type pigment is one or a mixture of two or more of wet color paste, pigment and color master slice.
Specifically, the leveling agent is a silicone surfactant.
Specifically, the microporous functional auxiliary agent is fluff powder.
Specifically, the water-soluble functional auxiliary is hydrochloride.
A preparation method of synthetic leather solvent-free microfiber high gloss finish polyurethane comprises the following steps:
s1: firstly, coating a surface layer polyurethane slurry on a high-gloss film, and drying to form a surface layer polyurethane layer, wherein the drying temperature is kept between 110 and 120 ℃;
s2: coating the intermediate layer polyurethane slurry on the surface layer polyurethane layer, drying, and forming an intermediate polyurethane layer above the surface layer polyurethane layer, wherein the drying temperature is kept at 120-130 ℃;
s3: and coating the polyether type solvent-free polyurethane slurry on the intermediate polyurethane layer to form a polyether type solvent-free polyurethane layer, laminating the fixed-width microfiber polyurethane synthetic leather and the polyether type solvent-free polyurethane layer by using a compression roller, then sending the laminated layers into an oven for curing, rolling the laminated layers together, curing the laminated layers in a curing chamber, and finally stripping the highlight mirror surface film to obtain the solvent-free highlight paint surface microfiber polyurethane synthetic leather.
Example 3
The utility model provides a synthetic leather solventless microfiber high gloss finish polyurethane, this synthetic leather solventless microfiber high gloss finish polyurethane includes surface course polyurethane layer, middle polyurethane layer, polyether type solventless polyurethane layer, microfiber polyurethane synthetic leather, wherein:
the surface layer polyurethane layer is prepared by mixing surface layer polyurethane slurry consisting of the following components in parts by weight: 80 parts of polycaprolactone-polyether composite polyurethane resin, 14 parts of polyvinyl chloride powder, 2 parts of a microporous functional assistant, 60 parts of dimethylformamide, 4 parts of a water-splashing oil agent, 14 parts of a solvent type pigment, 0.3 part of a flatting agent and 6 parts of a curing agent;
the intermediate polyurethane layer is prepared by mixing intermediate polyurethane slurry consisting of the following components in parts by weight: 80 parts of polyether-polyester composite polyurethane resin, 3 parts of microporous functional additive, 2 parts of water-soluble functional additive, 3 parts of water-splashing oil agent, 30 parts of dimethylformamide, 12 parts of pigment, 0.6 part of flatting agent and 6 parts of curing agent;
the polyether type solvent-free polyurethane layer is prepared by mixing polyether type solvent-free polyurethane slurry consisting of the following components in parts by weight: 80 parts of polytetrahydrofuran diol, 3 parts of microporous functional auxiliary agent, 2 parts of water-soluble functional auxiliary agent, 16 parts of chain extender, 50 parts of filler, 0.3 part of catalyst, 100 parts of isocyanate prepolymer and 6 parts of curing agent.
Specifically, the water-and-oil repellent agent is one or a mixture of two fluorine-containing surfactants.
Specifically, the solvent-based colorant is a color master.
Specifically, the leveling agent is a silicone surfactant.
Specifically, the microporous functional auxiliary agent is a mixture of activated carbon and fluff powder.
Specifically, the water-soluble functional auxiliary agent is the mixture of water-soluble protein powder and cyclodextrin.
A preparation method of synthetic leather solvent-free microfiber high gloss finish polyurethane comprises the following steps:
s1: firstly, coating a surface layer polyurethane slurry on a high-gloss film, and drying to form a surface layer polyurethane layer, wherein the drying temperature is kept between 110 and 120 ℃;
s2: coating the intermediate layer polyurethane slurry on the surface layer polyurethane layer, drying, and forming an intermediate polyurethane layer above the surface layer polyurethane layer, wherein the drying temperature is kept at 120-130 ℃;
s3: and coating the polyether type solvent-free polyurethane slurry on the intermediate polyurethane layer to form a polyether type solvent-free polyurethane layer, laminating the fixed-width microfiber polyurethane synthetic leather and the polyether type solvent-free polyurethane layer by using a compression roller, then sending the laminated layers into an oven for curing, rolling the laminated layers together, curing the laminated layers in a curing chamber, and finally stripping the highlight mirror surface film to obtain the solvent-free highlight paint surface microfiber polyurethane synthetic leather.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. The synthetic leather solvent-free microfiber high gloss finish polyurethane is characterized in that: the solvent-free super-fiber high-gloss finish polyurethane for the synthetic leather comprises a surface layer polyurethane layer, a middle polyurethane layer, a polyether type solvent-free polyurethane layer and super-fiber polyurethane synthetic leather, wherein:
the surface layer polyurethane layer is prepared by mixing surface layer polyurethane slurry consisting of the following components in parts by weight: 80 parts of polycaprolactone-polyether composite polyurethane resin, 10-14 parts of polyvinyl chloride powder, 1-2 parts of a microporous functional auxiliary agent, 45-60 parts of dimethylformamide, 2-4 parts of water-splashing oil agent, 12-14 parts of solvent type pigment, 0.1-0.3 part of a flatting agent and 4-6 parts of a curing agent;
the intermediate polyurethane layer is prepared by mixing intermediate polyurethane slurry consisting of the following components in parts by weight: 80 parts of polyether polyester composite polyurethane resin, 2-3 parts of microporous functional auxiliary, 1-2 parts of water-soluble functional auxiliary, 1-3 parts of water-splashing oil agent, 20-30 parts of dimethylformamide, 10-12 parts of pigment, 0.4-0.6 part of flatting agent and 4-6 parts of curing agent;
the polyether type solvent-free polyurethane layer is prepared by mixing polyether type solvent-free polyurethane slurry consisting of the following components in parts by weight: 80 parts of polytetrahydrofuran diol, 2-3 parts of microporous functional auxiliary agent, 1-2 parts of water-soluble functional auxiliary agent, 14-16 parts of chain extender, 40-50 parts of filler, 0.1-0.3 part of catalyst, 80-100 parts of isocyanate prepolymer and 4-6 parts of curing agent.
2. The synthetic leather solvent-free microfiber high gloss finish polyurethane of claim 1, wherein: the surface layer polyurethane layer is prepared by mixing surface layer polyurethane slurry consisting of the following components in parts by weight: 80 parts of polycaprolactone-polyether composite polyurethane resin, 12 parts of polyvinyl chloride powder, 1 part of a microporous functional assistant, 50 parts of dimethylformamide, 3 parts of a water-splashing oil agent, 13 parts of a solvent type pigment, 0.12 part of a flatting agent and 5 parts of a curing agent.
3. The synthetic leather solvent-free microfiber high gloss finish polyurethane of claim 1, wherein: the intermediate polyurethane layer is prepared by mixing intermediate polyurethane slurry consisting of the following components in parts by weight: 80 parts of polyether-polyester composite polyurethane resin, 2 parts of microporous functional additive, 1 part of water-soluble functional additive, 2 parts of water-splashing oil agent, 25 parts of dimethylformamide, 11 parts of pigment, 0.5 part of flatting agent and 5 parts of curing agent.
4. The synthetic leather solvent-free microfiber high gloss finish polyurethane of claim 1, wherein: the polyether type solvent-free polyurethane layer is prepared by mixing polyether type solvent-free polyurethane slurry consisting of the following components in parts by weight: 80 parts of polytetrahydrofuran diol, 1 part of microporous functional auxiliary, 1 part of water-soluble functional auxiliary, 15 parts of chain extender, 45 parts of filler, 0.2 part of catalyst, 90 parts of isocyanate prepolymer and 5 parts of curing agent.
5. The synthetic leather solvent-free microfiber high gloss finish polyurethane of claim 1, wherein: the water-splashing oil-splashing agent is one or a mixture of two of a salt surfactant containing long-chain alkane and a fluorine-containing surfactant.
6. The synthetic leather solvent-free microfiber high gloss finish polyurethane of claim 1, wherein: the solvent type pigment is one or the mixture of two or more of wet color paste, pigment and color master slice.
7. The synthetic leather solvent-free microfiber high gloss finish polyurethane of claim 1, wherein: the leveling agent is one or a mixture of two of a surface active agent containing organic silicon and a silicone surface active agent.
8. The synthetic leather solvent-free microfiber high gloss finish polyurethane of claim 1, wherein: the microporous functional assistant is one or the mixture of active carbon and fluff powder.
9. The synthetic leather solvent-free microfiber high gloss finish polyurethane of claim 1, wherein: the water-soluble functional auxiliary agent is one or a mixture of more than two of sulfate, hydrochloride, water-soluble protein powder and cyclodextrin.
10. A method for preparing the synthetic leather solvent-free microfiber high gloss finish polyurethane according to any one of claims 1 to 9, wherein the method comprises the following steps: the method comprises the following steps:
s1: firstly, coating a surface layer polyurethane slurry on a high-gloss film, and drying to form a surface layer polyurethane layer, wherein the drying temperature is kept between 110 and 120 ℃;
s2: coating the intermediate layer polyurethane slurry on the surface layer polyurethane layer, drying, and forming an intermediate polyurethane layer above the surface layer polyurethane layer, wherein the drying temperature is kept at 120-130 ℃;
s3: and coating the polyether type solvent-free polyurethane slurry on the intermediate polyurethane layer to form a polyether type solvent-free polyurethane layer, laminating the fixed-width microfiber polyurethane synthetic leather and the polyether type solvent-free polyurethane layer by using a compression roller, then sending the laminated layers into an oven for curing, rolling the laminated layers together, curing the laminated layers in a curing chamber, and finally stripping the highlight mirror surface film to obtain the solvent-free highlight paint surface microfiber polyurethane synthetic leather.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911318561.5A CN111139658A (en) | 2019-12-19 | 2019-12-19 | Synthetic leather solvent-free microfiber high-gloss finish polyurethane and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101440578A (en) * | 2008-12-19 | 2009-05-27 | 安徽安利合成革股份有限公司 | Novel waterproof air previous polyurethane artificial leather and preparation thereof |
| CN107385940A (en) * | 2017-08-22 | 2017-11-24 | 安徽安利材料科技股份有限公司 | A kind of solvent-free bloom lacquer painting superfine fiber polyurethane leather and preparation method thereof |
| CN110254003A (en) * | 2019-06-04 | 2019-09-20 | 浙江锦尚合成革有限公司 | A kind of formula and manufacturing method of the anti-corrosion-resistant high-strength synthetic leather of folding |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440578A (en) * | 2008-12-19 | 2009-05-27 | 安徽安利合成革股份有限公司 | Novel waterproof air previous polyurethane artificial leather and preparation thereof |
| CN107385940A (en) * | 2017-08-22 | 2017-11-24 | 安徽安利材料科技股份有限公司 | A kind of solvent-free bloom lacquer painting superfine fiber polyurethane leather and preparation method thereof |
| CN110254003A (en) * | 2019-06-04 | 2019-09-20 | 浙江锦尚合成革有限公司 | A kind of formula and manufacturing method of the anti-corrosion-resistant high-strength synthetic leather of folding |
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