CN103422361A - Waterborne shiny leather - Google Patents
Waterborne shiny leather Download PDFInfo
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- CN103422361A CN103422361A CN2013103877044A CN201310387704A CN103422361A CN 103422361 A CN103422361 A CN 103422361A CN 2013103877044 A CN2013103877044 A CN 2013103877044A CN 201310387704 A CN201310387704 A CN 201310387704A CN 103422361 A CN103422361 A CN 103422361A
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Abstract
The invention discloses waterborne shiny leather which is made in a dry-method film moving machining method. The method comprises the following steps that waterborne polyurethane resin slurry is arranged on release paper in a coating mode, the waterborne polyurethane resin slurry is divided into three layers, namely the face layer, the middle layer and the bottom adhesive layer, then a leather base cloth is bonded, paper and leather are separated, and the leather is detected and stored in a bin. The waterborne shiny leather has the advantages that besides the waterborne polyurethane resin utilization, the surface of the waterborne shiny leather is transparent, the surface brightness is high, and the surface has no crease line, the hydrolysis resistance of a synthetic leather product can be maintained for 5 years, the content of VOC is zero, no cell and needle eye exists in the surface of produced shiny synthetic leather, the surface is flat and smooth, similar products of other enterprises can not achieve the effect, and the waterborne shiny leather can be widely applied to various fields of sofas, automobile internal decoration, office appliances, and household walls.
Description
Technical field
The invention belongs to the leather field, specifically a kind of water-based mirror surface leather.
Background technology
At present, Synthetic Leather is through development for many years, because it has the plurality of advantages such as good outward appearance feel, breathable moisture permeability, solvent resistance, application convenience and designs and varieties are many, and be widely used in the aspects such as household, sofa, automotive trim, case and bag, office appliance.
Current existing mirror surface leather patent, resin used is solvent type polyurethane resin.Solvent type polyurethane resin refers to the macromolecule resin with organic solvent dissolution, but due to the solvent evaporates contaminated environment of solvent type resin; It is inflammable that organic solvent is mostly, and explosive chemicals causes security incident; Organic solvent is poisonous, harmful, affects the workmen healthy, dissolvent residual harm user security.
The synthetic leather industry adopts solvent type resin to cause serious consequence, 72.5 ten thousand tons of China's DMF output in 2011, and 2012 annual productions slightly descend, and output is at 700,000 tons, 9.7 ten thousand tons of its middle outlets, 10,000 tons of imports, 600,000 tons of domestic real consumptions.Wherein 80% be synthesized the use of leather industry, synthetic leather industry only DMF just has 400,000 tons to be discharged into atmosphere.
It is not that simple carbon discharges that the organic solvents such as DMF are discharged into atmosphere, and organic solvent irradiation through sunshine in atmosphere produces complicated chemical variation formation so-called " photochemical fog " to the people, and animal and plant produce grievous injury.Dimethyl formamide (DMF) can enter in body through respiratory tract, skin and gastrointestinal absorption, irritant to skin, mucous membrane, enters after human body and can damage the central nervous system important organs such as liver, kidney, stomach of unifying.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of water-based mirror surface leather.
A kind of water-based mirror surface leather, it is characterized in that it adopts dry method to move the film processing method and makes, comprise the steps: to apply the waterborne polyurethane resin slurry on release liners, described waterborne polyurethane resin slurry is divided into three layers, respectively surface layer, middle level and bottom tack coat, then bonding leather base cloth, carry out the paper leather and separate, the check warehouse-in.
Described a kind of water-based mirror surface leather, is characterized in that described surface layer made by the raw material of following parts by weight: 100 parts of waterborne polyurethane resins; 3-20 parts of pigment; 0.1-4 parts of thickeners, 0.1-3 parts of defoamers; 0.1-3 parts of levelling agents; 0.1-3 parts of wetting agents.
Described a kind of water-based mirror surface leather, is characterized in that described surface layer made by the raw material of following parts by weight: 100 parts of waterborne polyurethane resins; 8-15 parts of pigment; 1-3 parts of thickeners, 1-2 parts of defoamers; 1-2 parts of levelling agents; 1-2 parts of wetting agents.
Described a kind of water-based mirror surface leather, is characterized in that described middle level made by the raw material of following parts by weight: 100 parts of waterborne polyurethane resins, 3-20 parts of pigment; 0.1-4 parts of thickeners, 0.1-6 parts of blowing agents; 0.1-6 parts of foam stabilizers; 0.1-6 parts, curing agent.
Described a kind of water-based mirror surface leather, is characterized in that described middle level made by the raw material of following parts by weight: 100 parts of waterborne polyurethane resins, 5-15 parts of pigment; 1-3 parts of thickeners, 2-4 parts of blowing agents; 2-4 parts of foam stabilizers; 3-5 parts, curing agent.
Described a kind of water-based mirror surface leather, is characterized in that described bottom tack coat is used the aqueous polyurethane binding material, and curing value is 20-35.
Described a kind of water-based mirror surface leather, it is characterized in that described dry method moves the film processing method and adopt the thin measure that is heating and curing of scraping and assist of overbrushing, the speed of a motor vehicle is 5-23 m/min, and it is 0.05-0.2mm that surface layer one painting arranges gap thickness, first paragraph baking oven length is 10-30 meters, and temperature is 60-120 degree; Middle level two is coated with gap thickness is set is 0.3-0.6mm, and second segment baking oven length is 20-50 meters, and temperature is 60-120 degree; Bottom three is coated with gap thickness is set is 0.1-0.25mm, and the 3rd section baking oven length is 15-30 meters, and temperature is 60-120 degree.
Described a kind of water-based mirror surface leather, is characterized in that the baking oven front portion that surface layer one is coated with and middle level two is coated with has 5-20 meters of medium-wave infrared bringing-up sections, and the medium-wave infrared temperature is 30-70 degree, and medium-wave infrared optical wavelength wherein is 3.0-4.0 microns.
Waterborne polyurethane resin refers to usings the macromolecule resin of water as solvent or decentralized medium, our water-based mirror surface leather resin material used is waterborne polyurethane resin, waterborne polyurethane resin is usingd water as solvent or decentralized medium, the water volatilization is only arranged, free from environmental pollution, safety, nontoxic is the following inevitable developing direction of synthetic leather industry.It has advantage have: environmental protection, safety, nontoxic; Waterborne polyurethane resin only has moisture evaporation in work progress, free from environmental pollution; Water-base resin does not fire, not quick-fried, belongs to non-dangerous article, produces, and transportation, store and use does not have the blue law regulation; Waterborne polyurethane resin self is nontoxic, tasteless; The product no solvent residue.
The present invention adopts the waterborne polyurethane resin of high abrasion high resilience height brightness, meet the mirror surface leather high brightness, without the requirement of folding line, hydrolysis, adopted dry method to move membrane process, add defoamer, adopted mechanical agitation technique effectively to solve abscess, the pinprick problem.
Because the water of aqueous polyurethane is dispersion, the volatility latent heat of water is the several times of common solvent, the existing Hot Air Drying of simple employing also restricts the raising of production capacity greatly, so, we have adopted the mode of hot-air seasoning and the combination of medium-wave infrared technology on drying technology, the medium-wave infrared light that wavelength is 3.0 ~ 4.0 microns, directly activate hydrone by radiation, thereby the moisture in water-base resin can be realized to the Quick uniform drying, because shortwave and long-wave radiation are larger on the human body impact, and medium-wave infrared is comparatively safe, activate drying water molecule degree moderate, therefore adopt the dry combination of medium-wave infrared and heat engine, both increased stable processing technique, improve production capacity, energy-conservation Cost reduction again.
Water-based mirror surface leather of the present invention also has except the advantage of using waterborne polyurethane resin: the mirror surface leather surface is penetrating, surface brightness is high, without folding line; Synthetic leather product hydrolysis can reach 5 years, the VOC(volatile organic compounds) content is zero.The product technology key point is: the mirror face synthetic leather surface of producing is without abscess, pinprick, and surfacing is smooth, and this is that other enterprise's like products do not reach.This product can be widely used in a plurality of fields such as sofa, automotive trim, office accommodation, household metope.
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The specific embodiment
Embodiment 1
The water-based mirror surface leather adopts dry method to move the film processing method and makes, and comprises the steps: to apply the waterborne polyurethane resin slurry on release liners, and the waterborne polyurethane resin slurry is divided into three layers, respectively surface layer, middle level and bottom tack coat, then bonding leather base cloth, carry out the paper leather and separate, the check warehouse-in.
Wherein surface layer is made by the raw material of following parts by weight: 100 parts of waterborne polyurethane resins; 8 parts of pigment; 3 parts of thickeners, 1 part of defoamer; 1 part of levelling agent; 2 parts of wetting agents.
Middle level is made by the raw material of following parts by weight: 100 parts of waterborne polyurethane resins, 5 parts of pigment; 3 parts of thickeners, 2 parts of blowing agents; 2 parts of foam stabilizers; 5 parts, curing agent.
The bottom tack coat is used the aqueous polyurethane binding material, and curing value is 20.
Dry method is moved the film processing method and is adopted the thin measure that is heating and curing of scraping and assisting of overbrushing, and the speed of a motor vehicle is 8 m/min, and surface layer one is coated with gap thickness is set is 0.05mm, and first paragraph baking oven length is 10 meters, and temperature is 60 degree; Middle level two is coated with gap thickness is set is 0.3mm, and second segment baking oven length is 20 meters, and temperature is 60 degree; Bottom three is coated with gap thickness is set is 0.1mm, and the 3rd section baking oven length is 15 meters, and temperature is 60 degree.The baking oven front portion that surface layer one is coated with and middle level two is coated with has 5 meters of medium-wave infrared bringing-up sections, and the medium-wave infrared temperature is 30 degree, and medium-wave infrared optical wavelength wherein is 3.0 microns.
Embodiment 2
The water-based mirror surface leather adopts dry method to move the film processing method and makes, and comprises the steps: to apply the waterborne polyurethane resin slurry on release liners, and the waterborne polyurethane resin slurry is divided into three layers, respectively surface layer, middle level and bottom tack coat, then bonding leather base cloth, carry out the paper leather and separate, the check warehouse-in.
Wherein surface layer is made by the raw material of following parts by weight: 100 parts of waterborne polyurethane resins; 12 parts of pigment; 2 parts of thickeners, 1.5 parts of defoamers; 1.5 parts of levelling agents; 1.5 parts of wetting agents.
Middle level is made by the raw material of following parts by weight: 100 parts of waterborne polyurethane resins, 10 parts of pigment; 2 parts of thickeners, 3 parts of blowing agents; 3 parts of foam stabilizers; 4 parts, curing agent.
The bottom tack coat is used the aqueous polyurethane binding material, and curing value is 25.
Dry method is moved the film processing method and is adopted the thin measure that is heating and curing of scraping and assisting of overbrushing, and the speed of a motor vehicle is 15 m/min, and surface layer one is coated with gap thickness is set is 0.1mm, and first paragraph baking oven length is 20 meters, and temperature is 80 degree; Middle level two is coated with gap thickness is set is 0.5mm, and second segment baking oven length is 40 meters, and temperature is 100 degree; Bottom three is coated with gap thickness is set is 0.2mm, and the 3rd section baking oven length is 25 meters, and temperature is 100 degree.The baking oven front portion that surface layer one is coated with and middle level two is coated with has 12 meters of medium-wave infrared bringing-up sections, and the medium-wave infrared temperature is 50 degree, and medium-wave infrared optical wavelength wherein is 3.5 microns.
Embodiment 3
The water-based mirror surface leather adopts dry method to move the film processing method and makes, and comprises the steps: to apply the waterborne polyurethane resin slurry on release liners, and the waterborne polyurethane resin slurry is divided into three layers, respectively surface layer, middle level and bottom tack coat, then bonding leather base cloth, carry out the paper leather and separate, the check warehouse-in.
Wherein surface layer is made by the raw material of following parts by weight: 100 parts of waterborne polyurethane resins; 15 parts of pigment; 1 part of thickener, 2 parts of defoamers; 2 parts of levelling agents; 1 part of wetting agent.
Middle level is made by the raw material of following parts by weight: 100 parts of waterborne polyurethane resins, 15 parts of pigment; 1 part of thickener, 4 parts of blowing agents; 4 parts of foam stabilizers; 3 parts, curing agent.
The bottom tack coat is used the aqueous polyurethane binding material, and curing value is 35.
Dry method is moved the film processing method and is adopted the thin measure that is heating and curing of scraping and assisting of overbrushing, and the speed of a motor vehicle is 20 m/min, and surface layer one is coated with gap thickness is set is 0.2mm, and first paragraph baking oven length is 30 meters, and temperature is 120 degree; Middle level two is coated with gap thickness is set is 0.6mm, and second segment baking oven length is 50 meters, and temperature is 120 degree; Bottom three is coated with gap thickness is set is 0.25mm, and the 3rd section baking oven length is 30 meters, and temperature is 120 degree.The baking oven front portion that surface layer one is coated with and middle level two is coated with has 20 meters of medium-wave infrared bringing-up sections, and the medium-wave infrared temperature is 70 degree, and medium-wave infrared optical wavelength wherein is 4.0 microns.
Water-based mirror surface leather of the present invention detects through surveying environmental protection tests technology Co., Ltd in Wenzhou, free formaldehyde, dimethyl fumarate (DMF) does not all detect, 4-aminobphenyl, benzidine, 4-amino toluene amine, o-aminoazotoluene, 5-nitro-ortho-aminotoluene, parachloroanilinum, 2, 4-diamino anisole, 4,4 '-diaminodiphenylmethane, 3,3 '-dichloro-benzidine, 3,3 '-dimethoxy benzidine, 3,3 '-dimethylbenzidine, 3,3 '-dimethyl-4,4 '-diaminodiphenylmethane, 2-methoxyl group-5-methylaniline, 4,4 '-methylene-bis--(2-chloroaniline), 4,4 '-diaminodiphenyl ether, 4,4 '-diaminodiphenyl sulfide, ortho-aminotoluene, 2,4-diaminotoluene, 2,4,5-trimethylaniline, o-aminoanisole, 4-aminoazabenzol, 2,4-dimethylaniline, 2,6-dimethylaniline, N, N-dimethyl formamide does not all detect yet, and all greatly is better than the limit value of the 30mg/kg of national regulation.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all being included in protection scope of the present invention.
Claims (8)
1. a water-based mirror surface leather, it is characterized in that it adopts dry method to move the film processing method and makes, comprise the steps: to apply the waterborne polyurethane resin slurry on release liners, described waterborne polyurethane resin slurry is divided into three layers, respectively surface layer, middle level and bottom tack coat, then bonding leather base cloth, carry out the paper leather and separate, the check warehouse-in.
2. a kind of water-based mirror surface leather as claimed in claim 1, is characterized in that described surface layer made by the raw material of following parts by weight: 100 parts of waterborne polyurethane resins; 3-20 parts of pigment; 0.1-4 parts of thickeners, 0.1-3 parts of defoamers; 0.1-3 parts of levelling agents; 0.1-3 parts of wetting agents.
3. a kind of water-based mirror surface leather as claimed in claim 1, is characterized in that described surface layer made by the raw material of following parts by weight: 100 parts of waterborne polyurethane resins; 8-15 parts of pigment; 1-3 parts of thickeners, 1-2 parts of defoamers; 1-2 parts of levelling agents; 1-2 parts of wetting agents.
4. a kind of water-based mirror surface leather as claimed in claim 1, is characterized in that described middle level made by the raw material of following parts by weight: 100 parts of waterborne polyurethane resins, 3-20 parts of pigment; 0.1-4 parts of thickeners, 0.1-6 parts of blowing agents; 0.1-6 parts of foam stabilizers; 0.1-6 parts, curing agent.
5. a kind of water-based mirror surface leather as claimed in claim 1, is characterized in that described middle level made by the raw material of following parts by weight: 100 parts of waterborne polyurethane resins, 5-15 parts of pigment; 1-3 parts of thickeners, 2-4 parts of blowing agents; 2-4 parts of foam stabilizers; 3-5 parts, curing agent.
6. a kind of water-based mirror surface leather as claimed in claim 1, is characterized in that described bottom tack coat is used the aqueous polyurethane binding material, and curing value is 20-35.
7. a kind of water-based mirror surface leather as claimed in claim 1, it is characterized in that described dry method moves the film processing method and adopt the thin measure that is heating and curing of scraping and assisting of overbrushing, the speed of a motor vehicle is 5-23 m/min, surface layer one is coated with gap thickness is set is 0.05-0.2mm, first paragraph baking oven length is 10-30 meters, and temperature is 60-120 degree; Middle level two is coated with gap thickness is set is 0.3-0.6mm, and second segment baking oven length is 20-50 meters, and temperature is 60-120 degree; Bottom three is coated with gap thickness is set is 0.1-0.25mm, and the 3rd section baking oven length is 15-30 meters, and temperature is 60-120 degree.
8. a kind of water-based mirror surface leather as claimed in claim 7, it is characterized in that the baking oven front portion that surface layer one is coated with and middle level two is coated with has 5-20 meters of medium-wave infrared bringing-up sections, the medium-wave infrared temperature is 30-70 degree, and medium-wave infrared optical wavelength wherein is 3.0-4.0 microns.
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| CN2013103877044A CN103422361A (en) | 2013-08-31 | 2013-08-31 | Waterborne shiny leather |
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| CN2013103877044A CN103422361A (en) | 2013-08-31 | 2013-08-31 | Waterborne shiny leather |
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| CN103835144A (en) * | 2014-03-04 | 2014-06-04 | 合肥市科天化工有限公司 | Environmental-friendly and water-pressure-resistant tent leather and preparation method thereof |
| CN104018360A (en) * | 2014-06-20 | 2014-09-03 | 华伦皮塑（苏州）有限公司 | Preparation method of environment-friendly synthetic leather |
| CN104313896A (en) * | 2014-11-12 | 2015-01-28 | 华伦皮塑（苏州）有限公司 | Preparation method of leather-imitating automobile leather |
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