CN109322171A - A kind of anti-aging hydrolysis resistant polyurethane synthetic leather - Google Patents
A kind of anti-aging hydrolysis resistant polyurethane synthetic leather Download PDFInfo
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- CN109322171A CN109322171A CN201811570186.9A CN201811570186A CN109322171A CN 109322171 A CN109322171 A CN 109322171A CN 201811570186 A CN201811570186 A CN 201811570186A CN 109322171 A CN109322171 A CN 109322171A
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- 239000004814 polyurethane Substances 0.000 title claims abstract description 136
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 133
- 239000002649 leather substitute Substances 0.000 title claims abstract description 28
- 230000007062 hydrolysis Effects 0.000 title claims abstract description 23
- 238000006460 hydrolysis reaction Methods 0.000 title claims abstract description 23
- 230000003712 anti-aging effect Effects 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 147
- 239000004744 fabric Substances 0.000 claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 claims abstract description 21
- 230000003115 biocidal effect Effects 0.000 claims abstract description 12
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 12
- 239000010410 layer Substances 0.000 claims description 221
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 64
- 229920005989 resin Polymers 0.000 claims description 40
- 239000011347 resin Substances 0.000 claims description 40
- 239000011248 coating agent Substances 0.000 claims description 21
- 238000000576 coating method Methods 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 15
- 239000002344 surface layer Substances 0.000 claims description 15
- 239000010985 leather Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 10
- 238000003786 synthesis reaction Methods 0.000 claims description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 238000006748 scratching Methods 0.000 claims description 5
- 230000002393 scratching effect Effects 0.000 claims description 5
- 238000009288 screen filtration Methods 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 claims description 3
- 230000000844 anti-bacterial effect Effects 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000003112 inhibitor Substances 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 2
- 101000902641 Homo sapiens Protein dpy-30 homolog Proteins 0.000 claims 1
- 102100022946 Protein dpy-30 homolog Human genes 0.000 claims 1
- 229910021529 ammonia Inorganic materials 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 2
- 230000003301 hydrolyzing effect Effects 0.000 abstract description 2
- 229920002521 macromolecule Polymers 0.000 abstract description 2
- 238000011160 research Methods 0.000 abstract description 2
- 239000002904 solvent Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 5
- 229920002994 synthetic fiber Polymers 0.000 description 3
- 239000012209 synthetic fiber Substances 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 241000233866 Fungi Species 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 206010018612 Gonorrhoea Diseases 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 210000000805 cytoplasm Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- KZVVGZKAVZUACK-BJILWQEISA-N rilpivirine hydrochloride Chemical compound Cl.CC1=CC(\C=C\C#N)=CC(C)=C1NC1=CC=NC(NC=2C=CC(=CC=2)C#N)=N1 KZVVGZKAVZUACK-BJILWQEISA-N 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000758 substrate Substances 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
- 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
-
- 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
-
- 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
- D06N3/0059—Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
-
- 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
- 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
-
- 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
- D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
-
- 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
-
- 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
- D06N2209/08—Properties of the materials having optical properties
- D06N2209/0838—Bright, glossy, shiny surface
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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
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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
- D06N2209/1642—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
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1671—Resistance to bacteria, mildew, mould, fungi
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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
- D06N2209/1685—Wear resistance
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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
- D06N2209/1692—Weather resistance
-
- 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
Abstract
The present invention relates to macromolecule polyurethane synthetic leather production fields, more particularly to a kind of anti-aging hydrolysis resistant polyurethane synthetic leather, including base cloth layer, the upper surface of base cloth layer is set as wet polyurethane layer, the upper end of wet polyurethane layer is coated with dry method layer of polyurethane, dry method layer of polyurethane includes the first dry method layer of polyurethane, the second dry method layer of polyurethane and scraper layer, the upper end of scraper layer is provided with cavity layer, cavity layer upper surface is provided with bloom process layer, the upper end version of bloom process layer is coated with sense process layer, feels thoroughly and is coated with antibiotic layer on the upper surface of process layer.The present invention passes through the research to wet polyurethane layer, so that synthetic leather has good elasticity, hydrolytic resistance, solvent resistance and resistance to ag(e)ing, pass through the design to dry method layer of polyurethane resin and technique, so that the wearability of synthetic leather product, cold resistance, weather resistance are more preferably, the present invention can improve the properties of Synthetic Leather, effectively prolong the service life, practicability is high.
Description
Technical field
The present invention relates to macromolecule polyurethane synthetic leather production fields more particularly to a kind of anti-aging hydrolysis resistant polyurethane to close
Finished leather.
Background technique
Synthetic Leather belongs to one kind of polyurethane elastomer, has soft glossy, naturally, soft, kishke feel
Strong appearance, have had excellent performance with substrate bonding, be wear-resistant, flex endurant, the excellent mechanical performance such as anti-aging, while also having
The advantages that good, ventilative, washable, easy to process, price is excellent honest and clean for cold resistance, be the ideal substitute of natural leather,
It is widely used in the industries such as clothes, shoemaking, luggage, furniture.
Currently, domestic artificial leather and synthetic leather product mostly use greatly conventional polyester type polyurethane, quality, class are lower, resistance to
It is water-disintegrable general, it impregnates or is exposed in moisture in water, mechanical properties decrease can be caused, hydrolysis ageing properties are poor.This hair
Resin used in bright is polyether polyurethane resin, has developed a kind of institutional framework similar to corium with this, durability is good
High-grade synthetic leather product.
Summary of the invention
The purpose of the present invention is to provide a kind of anti-aging hydrolysis resistant polyurethane synthetic leather, to solve the above technical problems.
The present invention using following technical scheme in order to solve the above technical problems, realized:
A kind of anti-aging hydrolysis resistant polyurethane synthetic leather, a kind of anti-aging hydrolysis resistant polyurethane synthetic leather, including base cloth layer, it is special
Sign is:
A kind of anti-aging hydrolysis resistant polyurethane synthetic leather, including base cloth layer, it is characterised in that:
The upper surface of the base cloth layer is set as wet polyurethane layer, and the upper end of wet polyurethane layer is coated with dry method layer of polyurethane,
Dry method layer of polyurethane includes the first dry method layer of polyurethane and the second dry method layer of polyurethane, and it is dry that the second dry method layer of polyurethane is located at first
The upper end of method layer of polyurethane, the upper surface of the second dry method layer of polyurethane are provided with scraper layer, and the upper end of scraper layer is provided with cavity
Layer, cavity layer upper surface are provided with bloom process layer, and the upper end version of bloom process layer is coated with sense process layer, the sense processing
Antibiotic layer is coated on the upper surface of layer.
Preferably, the base cloth layer is the microtriche cloth of thickness 0.8mm, and base fabric back side cloth hair is smooth.
Preferably, there is air hole structure on the dry method layer of polyurethane.
The production of wet polyurethane layer:
A: 80-90 parts of dimethylformamide, 3-6 parts of hydrolysis mill base, 7-10 parts of light calcium carbonate powder, 11-15 parts of synthesis are taken
Fiber powder, 85-95 parts of Moist chemical synthesis leather polyurethane resin A, 60-70 parts of wet process resin B are put into blender；
B: blender is arranged to 35-45 revs/min, and vacuumizes 40-60min, obtains mixture Q;
C: 10-20 parts of dimethylformamide being added into mixture Q, then uses the filter screen filtration of 60-100 mesh, is made mixed
Close object W；
D: base fabric being placed in 50% dimethyl formamide solution and is cleaned, and then takes turns pressing base fabric by 70-80 DEG C of pressing, then will
Mixture W is evenly applied in base fabric;
E: the base fabric of step d solidifies coating by the pre- consolidated slot containing 21%DMF, using rinsing bowl clear water
It is washed, is dried using 120-150 DEG C of baking oven, then cooled down by the cooling wheel of recirculated water, wet process is made
Layer of polyurethane.
The production of dry method layer of polyurethane:
A: scratching one layer of dry method surface layer resin D with scraper in release paper, dry completely in 130-150 DEG C of baking oven, is made and scrapes
Knife layer；
B: on scraper layer after the drying coat one layer of dry method surface layer resin E, coating with a thickness of 0.15mm, by 130-150
DEG C baking oven dry completely, be made the second dry method layer of polyurethane；
C: coating one layer of dry method underfill resin layer F on the second dry method layer of polyurethane after the drying, coating with a thickness of 0.15mm, warp
Cross 120-140 DEG C of baking oven be dried to it is half-dried；
D: the second dry method layer of polyurethane in step c is taken out, is bonded with wet polyurethane layer, in 130-150 DEG C of baking oven
In dried, completely drying after remove, be made the first dry method layer of polyurethane；
Preferably, the antibiotic layer is uniformly to spray upper leather antibacterial mildew inhibitor when sense process layer is not dry thoroughly, form one layer of band
Thorn-like antibiotic layer, structure amplify under the microscope 2,000 times it is visible.Leather fungicide is mainly completed with the technology of cation mould proof
The work of antibacterial actively adsorbs negatively charged fungi bacterium, punctures as sharp knife its cell wall, its cytoplasm is allowed to be lost
Fall, destroy fungus growth food chain, mould is caused to be had no idea growth and breeding.
Preferably, in the production a step of the wet polyurethane layer, all raw material are all on one side with 35-45 revs/min
What the speed stirring of clock was added on one side.
Preferably, in the production of the wet polyurethane layer, used Moist chemical synthesis leather polyurethane resin A is resistance to
Polyether-type wet process resin is hydrolyzed, viscosity is cps25 DEG C of 24-28 ten thousand, and 100% modulus is 4-5MPa, solid content 30%, the resin bullet
Good, the surfacing of property, peel strength is up to 4KG or more.
Preferably, in the production of the wet polyurethane layer, used wet polyurethane resin B is that hydrolysis is high for 24 hours
Wet process resin is removed, viscosity is cps25 DEG C of 16-30 ten thousand, and 100% modulus is 4.5-5.5MPa, and solid content is 32 ± 1.0%, appearance
For colourless to faint yellow micro- muddy thick liquid, the resin peel strength is high, and de- DMF is good, good hand feeling, and voluptuousness is strong.
Preferably, in the making step d of the wet polyurethane layer, the temperature for the wheel that plates is 80-85 DEG C, and base fabric linear speed is
13-14 ms/min.
Preferably, the coating thickness of the wet polyurethane layer is 0.65-0.75mm.
Preferably, the dry method surface layer resin D in the making step a of the dry method layer of polyurethane is by 100 parts of poly- carbon type
High abrasion resin, 80 parts of acetone soln, 20 parts of DMF add 3-5 parts of toner to configure again.
Preferably, the poly- carbon type high abrasion resin viscosity in the resin D in the scraper layer is cps25 DEG C of 7-12 ten thousand,
100% modulus is 9MPa, and solid content is 30.0 ± 1.0%, and breaking strength is greater than 40MPa, and elongation at break is greater than 400%, and appearance is
Colourless or light yellow viscous liquid.
Preferably, the dry method surface layer resin E in the making step b of the dry method layer of polyurethane is cold-resistant, resistance to by 100 parts
Dry method surface layer resin, 80 parts of acetone soln are hydrolyzed, 20 parts of DMF adds 3-5 parts of toner to configure again.
Preferably, cold-resistant, hydrolysis dry method surface layer resin the viscosity in the resin E in the second dry method layer of polyurethane
It is cps25 DEG C of 8-12 ten thousand, 100% modulus is 3.2 ± 1.0MPa, and solid content is 30.0 ± 1.0%, and breaking strength is greater than 30MPa, breaks
Elongation is split greater than 550%, and appearance is transparency liquid.
Preferably, the polyurethane resin F in the making step c of the dry method layer of polyurethane is by 100 parts of ultra-soft matter one
The common dry method adhesive layer PU resin of liquid type, 80 parts of acetone soln, 20 parts of DMF add 3-5 parts of toner to configure again.
Preferably, the common dry method adhesive layer PU resin of one liquid type of ultra-soft matter in the resin F in the dry method layer of polyurethane 1
Viscosity be cps25 DEG C of 10-16 ten thousand, 100% modulus be 1-2MPa, solid content be 40.0 ± 1.0%, breaking strength be greater than 15MPa,
Elongation at break is greater than 600%, and appearance is colourless to pale yellow transparent thick liquid.
Preferably, inorganic agent used in the bloom process layer is bloom outermost layer of skin inorganic agent, and main component is PU resin,
Appearance is micro- turbid body, and leather brightness is high after processing, and feel is cunning.
Preferably, inorganic agent used in the sense process layer is polishing treatment agent, and surface is removed from office after processing and is felt thoroughly more preferably,
Viscosity is 150-400 cps/25 DEG C, and solid content is 14 ± 1%, and appearance is gonorrhoea liquid.
The beneficial effects of the present invention are:
The present invention is by the research to wet polyurethane layer, so that synthetic leather has good elasticity, hydrolytic resistance, solvent resistance
And resistance to ag(e)ing, so that synthetic leather good hand feeling, voluptuousness are strong；By the design to dry method layer of polyurethane resin and technique, so that
The wearability of synthetic leather product, cold resistance, weather resistance more preferably, and increase the caking property between each structure, make its feel more
It is soft；Processing by inorganic agent to surface, so that synthetic leather surface brightness is high, feel is cunning, has and feels thoroughly, and antibiotic layer is set
What is be set effective prevents the breeding of leather surface mould, and the present invention can improve the properties of Synthetic Leather, effectively prolong
Long life, practicability are high.
Detailed description of the invention
Fig. 1 is polyurethane synthetic leather structure schematic diagram of the invention；
Appended drawing reference: 1- base cloth layer；2- wet polyurethane layer；3- dry method layer of polyurethane；301- the first dry method layer of polyurethane；302-
Second dry method layer of polyurethane；303- scraper layer；4- cavity layer；5- bloom process layer；6- feels process layer thoroughly；7- antibiotic layer.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained, and however, the following embodiments are merely preferred embodiments of the present invention, and not all.
Based on the implementation example in the implementation mode, those skilled in the art's obtained other realities without making creative work
Example is applied, protection scope of the present invention is belonged to.Experimental method in following embodiments is unless otherwise specified conventional method,
The materials, reagents and the like used in the following examples is commercially available unless otherwise specified.
Embodiment 1
A kind of anti-aging hydrolysis resistant polyurethane synthetic leather, including base cloth layer 1, the upper surface of base cloth layer 1 are set as wet polyurethane
Layer 2, the upper end of wet polyurethane layer 2 are coated with dry method layer of polyurethane 3, and dry method layer of polyurethane 3 includes the first dry method layer of polyurethane 301
With the second dry method layer of polyurethane 302, the second dry method layer of polyurethane 302 is located at the upper end of the first dry method layer of polyurethane 301, and second is dry
The upper surface of method layer of polyurethane 302 is provided with scraper layer 303, and the upper end of scraper layer 303 is provided with cavity layer 4,4 upper end of cavity layer
Face is provided with bloom process layer 5, and the upper end version of bloom process layer 5 is coated with sense process layer 6, the upper end of the sense process layer 6
Antibiotic layer 7 is coated on face.
The production of wet polyurethane layer:
A: taking 80 parts of dimethylformamide, 3 parts of hydrolysis mill base, 7 parts of light calcium carbonate powder, 11 parts of synthetic fibers powder, and 85 parts
Moist chemical synthesis leather polyurethane resin A, 60 parts of wet process resin B is put into blender；
B: blender is arranged to 35-45 revs/min, and vacuumizes 40-60min, obtains mixture Q;
C: 10 parts of dimethylformamide is added into mixture Q, then uses the filter screen filtration of 60-100 mesh, mixture is made
W；
D: base fabric being placed in 50% dimethyl formamide solution and is cleaned, and then takes turns pressing base fabric by 70-80 DEG C of pressing, then will
Mixture W is evenly applied in base fabric;
E: the base fabric of step d solidifies coating by the pre- consolidated slot containing 21%DMF, using rinsing bowl clear water
It is washed, is dried using 120-150 DEG C of baking oven, then cooled down by the cooling wheel of recirculated water, wet process is made
Layer of polyurethane.
The production of dry method layer of polyurethane:
A: scratching one layer of dry method surface layer resin D with scraper in release paper, dry completely in 130-150 DEG C of baking oven, is made and scrapes
Knife layer；
B: on scraper layer after the drying coat one layer of dry method surface layer resin E, coating with a thickness of 0.15mm, by 130-150
DEG C baking oven dry completely, be made the second dry method layer of polyurethane；
C: coating one layer of dry method underfill resin layer F on the second dry method layer of polyurethane after the drying, coating with a thickness of 0.15mm, warp
Cross 120-140 DEG C of baking oven be dried to it is half-dried；
D: the second dry method layer of polyurethane in step c is taken out, is bonded with wet polyurethane layer, in 130-150 DEG C of baking oven
In dried, completely drying after remove, be made the first dry method layer of polyurethane；
Embodiment 2
A kind of anti-aging hydrolysis resistant polyurethane synthetic leather, including base cloth layer 1, it is poly- that the upper surface of the base cloth layer 1 is set as wet process
Urethane layer 2, the upper end of wet polyurethane layer 2 are coated with dry method layer of polyurethane 3, and dry method layer of polyurethane 3 includes the first dry method polyurethane
Layer 301 and the second dry method layer of polyurethane 302, the second dry method layer of polyurethane 302 are located at the upper end of the first dry method layer of polyurethane 301,
The upper surface of second dry method layer of polyurethane 302 is provided with scraper layer 303, and the upper end of scraper layer 303 is provided with cavity layer 4, cavity
4 upper surface of layer are provided with bloom process layer 5, and the upper end version of bloom process layer 5 is coated with sense process layer 6, the sense process layer 6
Upper surface on be coated with antibiotic layer 7.
The production of wet polyurethane layer:
A: taking 85 parts of dimethylformamide, 4 parts of hydrolysis mill base, 9 parts of light calcium carbonate powder, 13 parts of synthetic fibers powder, and 90 parts
Moist chemical synthesis leather polyurethane resin A, 65 parts of wet process resin B is put into blender；
B: blender is arranged to 35-45 revs/min, and vacuumizes 40-60min, obtains mixture Q;
C: 15 parts of dimethylformamide being added into mixture Q, and then with the filter screen filtration of 80 mesh, mixture W is made；
D: base fabric being placed in 50% dimethyl formamide solution and is cleaned, and then takes turns pressing base fabric by 70-80 DEG C of pressing, then will
Mixture W is evenly applied in base fabric;
E: the base fabric of step d solidifies coating by the pre- consolidated slot containing 21%DMF, using rinsing bowl clear water
It is washed, is dried using 120-150 DEG C of baking oven, then cooled down by the cooling wheel of recirculated water, wet process is made
Layer of polyurethane.
The production of dry method layer of polyurethane:
A: scratching one layer of dry method surface layer resin D with scraper in release paper, dry completely in 130-150 DEG C of baking oven, is made and scrapes
Knife layer；
B: on scraper layer after the drying coat one layer of dry method surface layer resin E, coating with a thickness of 0.15mm, by 130-150
DEG C baking oven dry completely, be made the second dry method layer of polyurethane；
C: coating one layer of dry method underfill resin layer F on the second dry method layer of polyurethane after the drying, coating with a thickness of 0.15mm, warp
Cross 120-140 DEG C of baking oven be dried to it is half-dried；
D: the second dry method layer of polyurethane in step c is taken out, is bonded with wet polyurethane layer, in 130-150 DEG C of baking oven
In dried, completely drying after remove, be made the first dry method layer of polyurethane；
Embodiment 3
A kind of anti-aging hydrolysis resistant polyurethane synthetic leather, including base cloth layer 1, it is poly- that the upper surface of the base cloth layer 1 is set as wet process
Urethane layer 2, the upper end of wet polyurethane layer 2 are coated with dry method layer of polyurethane 3, and dry method layer of polyurethane 3 includes the first dry method polyurethane
Layer 301 and the second dry method layer of polyurethane 302, the second dry method layer of polyurethane 302 are located at the upper end of the first dry method layer of polyurethane 301,
The upper surface of second dry method layer of polyurethane 302 is provided with scraper layer 303, and the upper end of scraper layer 303 is provided with cavity layer 4, cavity
4 upper surface of layer are provided with bloom process layer 5, and the upper end version of bloom process layer 5 is coated with sense process layer 6, the sense process layer 6
Upper surface on be coated with antibiotic layer 7.
The production of wet polyurethane layer:
A: taking 90 parts of dimethylformamide, 6 parts of hydrolysis mill base, 10 parts of light calcium carbonate powder, 15 parts of synthetic fibers powder, and 95 parts
Moist chemical synthesis leather polyurethane resin A, 70 parts of wet process resin B is put into blender；
B: blender is arranged to 35-45 revs/min, and vacuumizes 40-60min, obtains mixture Q;
C: 20 parts of dimethylformamide is added into mixture Q, then uses the filter screen filtration of 60-100 mesh, mixture is made
W；
D: base fabric being placed in 50% dimethyl formamide solution and is cleaned, and then takes turns pressing base fabric by 70-80 DEG C of pressing, then will
Mixture W is evenly applied in base fabric;
E: the base fabric of step d solidifies coating by the pre- consolidated slot containing 21%DMF, using rinsing bowl clear water
It is washed, is dried using 120-150 DEG C of baking oven, then cooled down by the cooling wheel of recirculated water, wet process is made
Layer of polyurethane.
The production of dry method layer of polyurethane:
A: scratching one layer of dry method surface layer resin D with scraper in release paper, dry completely in 130-150 DEG C of baking oven, is made and scrapes
Knife layer；
B: on scraper layer after the drying coat one layer of dry method surface layer resin E, coating with a thickness of 0.15mm, by 130-150
DEG C baking oven dry completely, be made the second dry method layer of polyurethane；
C: coating one layer of dry method underfill resin layer F on the second dry method layer of polyurethane after the drying, coating with a thickness of 0.15mm, warp
Cross 120-140 DEG C of baking oven be dried to it is half-dried；
D: the second dry method layer of polyurethane in step c is taken out, is bonded with wet polyurethane layer, in 130-150 DEG C of baking oven
In dried, completely drying after remove, be made the first dry method layer of polyurethane；
The basic principles, main features and advantages of the present invention have been shown and described above.The technical staff of the industry
It should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is only of the invention excellent
Example is selected, is not intended to limit the invention, without departing from the spirit and scope of the present invention, the present invention also has various change
And improvement, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended
Claims and its equivalent thereof.
Claims (10)
1. a kind of anti-aging hydrolysis resistant polyurethane synthetic leather, including base cloth layer (1), it is characterised in that:
The upper surface of the base cloth layer (1) is set as wet polyurethane layer (2), and the upper end of wet polyurethane layer (2) is coated with dry method
Layer of polyurethane (3), dry method layer of polyurethane (3) include the first dry method layer of polyurethane (301), the second dry method layer of polyurethane (302) and
Scraper layer (303), the second dry method layer of polyurethane (302) are located at the upper end of the first dry method layer of polyurethane (301), the poly- ammonia of the second dry method
The upper surface of ester layer (302) is provided with scraper layer (303), and the upper end of scraper layer (303) is provided with cavity layer (4), cavity layer (4)
Upper surface is provided with bloom process layer (5), and the upper end version of bloom process layer (5) is coated with sense process layer (6), the sense processing
Antibiotic layer (7) are coated on the upper surface of layer (6).
2. a kind of anti-aging hydrolysis resistant polyurethane synthetic leather as described in claim 1 is it is characterized by: the base cloth layer (1) is
The microtriche cloth of thickness 0.8mm, base cloth layer (1) back side cloth hair are smooth.
3. a kind of anti-aging hydrolysis resistant polyurethane synthetic leather as described in claim 1 is it is characterized by: the dry method polyurethane
There is air hole structure on layer (3).
4. the production method of wet polyurethane layer according to claim 1, which comprises the steps of:
A: 80-90 parts of dimethylformamide, 3-6 parts of hydrolysis mill base, 7-10 parts of light calcium carbonate powder, 11-15 parts of synthesis are taken
Fiber powder, 85-95 parts of Moist chemical synthesis leather polyurethane resin A, 60-70 parts of wet process resin B are put into blender；
B: blender is arranged to 35-45 revs/min, and vacuumizes 40-60min, obtains mixture Q;
C: 10-20 parts of dimethylformamide being added into mixture Q, then uses the filter screen filtration of 60-100 mesh, is made mixed
Close object W；
D: base fabric being placed in 50% dimethyl formamide solution and is cleaned, and then takes turns pressing base fabric by 70-80 DEG C of pressing, then will
Mixture W is evenly applied in base fabric;
E: the base fabric of step d solidifies coating by the pre- consolidated slot containing 21%DMF, using rinsing bowl clear water
It is washed, is dried using 120-150 DEG C of baking oven, then cooled down by the cooling wheel of recirculated water, wet process is made
Layer of polyurethane.
5. benefit require 1 described in dry method layer of polyurethane production method, which comprises the steps of:
A: scratching one layer of dry method surface layer resin D with scraper in release paper, dry completely in 130-150 DEG C of baking oven, is made and scrapes
Knife layer；
B: on scraper layer after the drying coat one layer of dry method surface layer resin E, coating with a thickness of 0.15mm, by 130-150
DEG C baking oven dry completely, be made the second dry method layer of polyurethane；
C: coating one layer of dry method underfill resin layer F on the second dry method layer of polyurethane after the drying, coating with a thickness of 0.15mm, warp
Cross 120-140 DEG C of baking oven be dried to it is half-dried；
D: the second dry method layer of polyurethane in step c is taken out, is bonded with wet polyurethane layer, in 130-150 DEG C of baking oven
In dried, completely drying after remove, be made the first dry method layer of polyurethane.
6. the production method of wet polyurethane layer according to claim 1, it is characterised in that: the antibiotic layer is to feel thoroughly
When process layer is not dry, upper leather antibacterial mildew inhibitor is uniformly sprayed, forms one layer of band thorn-like antibiotic layer, structure is amplified under the microscope
2000 times visible.
7. the production method of wet polyurethane layer as claimed in claim 4, which is characterized in that the system of the wet polyurethane layer
Making all raw material in a step is added while being stirred with 35-45 revs/min of speed.
8. the production method of wet polyurethane layer as claimed in claim 4, which is characterized in that the system of the wet polyurethane layer
In work, used Moist chemical synthesis leather is hydrolysis polyether-type wet process resin with polyurethane resin A, and viscosity is 24-28 ten thousand
Cps25 DEG C, 100% modulus is 4-5MPa, solid content 30%.
9. the production method of wet polyurethane layer as claimed in claim 4, which is characterized in that the system of the wet polyurethane layer
The temperature of wheel of making to plate in step d is 80-85 DEG C, and base fabric linear speed is 13-14 ms/min.
10. the production method of dry method layer of polyurethane as claimed in claim 5, which is characterized in that the production of dry method layer of polyurethane
Dry method surface layer resin D in step a is by 100 parts of poly- carbon type high abrasion resin, and 80 parts of acetone soln, 20 parts of DMF is again
3-5 parts of toner is added to configure.
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| CN201811570186.9A CN109322171A (en) | 2018-12-21 | 2018-12-21 | A kind of anti-aging hydrolysis resistant polyurethane synthetic leather |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110629562A (en) * | 2019-11-01 | 2019-12-31 | 清远市齐力合成革有限公司 | Synthetic leather fabric for stage shoes and preparation method thereof |
| CN110952337A (en) * | 2019-11-15 | 2020-04-03 | 清远市齐力合成革有限公司 | Anti-aging hydrolysis-resistant PU synthetic leather fabric and preparation method thereof |
| CN112813697A (en) * | 2019-11-15 | 2021-05-18 | 清远市齐力合成革有限公司 | High-mirror-surface leopard print synthetic leather and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182073A (en) * | 2011-04-25 | 2011-09-14 | 安安(中国)有限公司 | Method for manufacturing synthetic leather for mildewproof and antibacterial sneakers |
| CN104141237A (en) * | 2013-05-10 | 2014-11-12 | 昆山协孚人造皮有限公司 | Antipollution sofa leather making method |
| CN206070219U (en) * | 2016-08-29 | 2017-04-05 | 华世（福建)科技有限公司 | A kind of antibacterial environment protection synthetic leather |
| CN207714018U (en) * | 2017-12-29 | 2018-08-10 | 昆山协孚新材料股份有限公司 | A kind of cosmetics auxiliary material leather |
| CN108978250A (en) * | 2018-08-20 | 2018-12-11 | 福建华夏合成革有限公司 | A kind of suede nap hydrolysis ultra-soft albumen leather and preparation method thereof |
-
2018
- 2018-12-21 CN CN201811570186.9A patent/CN109322171A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182073A (en) * | 2011-04-25 | 2011-09-14 | 安安(中国)有限公司 | Method for manufacturing synthetic leather for mildewproof and antibacterial sneakers |
| CN104141237A (en) * | 2013-05-10 | 2014-11-12 | 昆山协孚人造皮有限公司 | Antipollution sofa leather making method |
| CN206070219U (en) * | 2016-08-29 | 2017-04-05 | 华世（福建)科技有限公司 | A kind of antibacterial environment protection synthetic leather |
| CN207714018U (en) * | 2017-12-29 | 2018-08-10 | 昆山协孚新材料股份有限公司 | A kind of cosmetics auxiliary material leather |
| CN108978250A (en) * | 2018-08-20 | 2018-12-11 | 福建华夏合成革有限公司 | A kind of suede nap hydrolysis ultra-soft albumen leather and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110629562A (en) * | 2019-11-01 | 2019-12-31 | 清远市齐力合成革有限公司 | Synthetic leather fabric for stage shoes and preparation method thereof |
| CN110952337A (en) * | 2019-11-15 | 2020-04-03 | 清远市齐力合成革有限公司 | Anti-aging hydrolysis-resistant PU synthetic leather fabric and preparation method thereof |
| CN112813697A (en) * | 2019-11-15 | 2021-05-18 | 清远市齐力合成革有限公司 | High-mirror-surface leopard print synthetic leather and preparation method thereof |
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Application publication date: 20190212 |