CN106366274A - Low-VOC polyurethane synthetic leather and production method thereof - Google Patents
Low-VOC polyurethane synthetic leather and production method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4202—Two or more polyesters of different physical or chemical nature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/06—Polyurethanes from polyesters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0043—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by their foraminous structure; Characteristics of the foamed layer or of cellular layers
-
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2101/00—Manufacture of cellular products
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Textile Engineering (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The invention discloses a low-VOC polyurethane synthetic leather and a production method thereof. The low-VOC polyurethane synthetic leather comprises a surface layer and a foaming layer, the surface layer and the foaming layer are respectively made of two-component polyurethane resin, and the two-component polyurethane resin is made of a component A and a component B, wherein the component A is solvent-free hydroxyl mixture resin, the component B is isocyanate, and the use amounts of the component A and the component B meet a ratio of OH to NCO of 2:(1-1.5). The low-VOC polyurethane synthetic leather is made of the solvent-free polyurethane resin through a casting device; vacuum line suction breaks the restriction of release paper lines; the low-VOC polyurethane synthetic leather has the advantages of environmental protection, low consumption, low investment, excellent performances; and the method realizes revolutionary transformation and upgrading of the synthetic leather industry.
Description
Technical field
The invention belongs to synthetic leather field is and in particular to low voc polyurethane ecological synthetic leather and preparation method thereof.
Background technology
This project objective product mainly substitutes conventional solvent type polyurethane resin to produce using solvent-free polyurethane resin.
Domestic at present stay in solvent type resin to produce, its dmf dissolvent residual, produce and field of employment cause problem of environmental pollution
Thorough effectively solving can not be obtained.
It is raw material that solvent-free ecological synthetic leather processing replaces solvent type resin using solvent-free polyurethane resin, by new
Tanning production line is obtained leather finished product.Solventfree resin does not contain poisonous Organic chemical solvents, to environment non-hazardous, reaches ecology
The high request of environmental protection.It is hitech materials up-to-date at present with no-solvent polyurethane on synthetic leather.No-solvent polyurethane system at present
Leather technology mainly by German basf company, bayer company, etc. the research and development of world-class renowned company, control.China's use for synthetic leather is no molten
The research starting of agent polyurethane is relatively slow.Domestic technology application is also in the stage of fumbling of simple kind.
Application in release paper for the pu resin, is the dominant form that current synthetic leather produces, the lines of Synthetic Leather
Species by release paper is limited.Therefore need to find new technique, break through the few restriction of release paper lines.
Content of the invention
The purpose of the present invention is to substitute traditional solvent-borne resin using solvent-free polyurethane resin, provides the ecology of low voc
Synthetic leather.
It is a further object of the present invention to provide a kind of new process of preparing of above-mentioned solvent-free ecological synthetic leather.
The purpose of the present invention can be reached by following measures:
A kind of low voc Synthetic Leather, it includes surface layer and foaming layer, and described surface layer and foaming layer are all using the poly- ammonia of double-component
Ester resin is made, and this dual-component polyurethane resin is made up of a component and b component, and wherein a group is divided into solvent-free polyhydroxy compound tree
Fat part, b group is divided into isocyanate moiety, and the consumption of a, b component counts the oh:nco proportioning of the two as 2:1 with oh and nco respectively
~1.5；The quality of described a component consists of: 100 parts of solvent-free polyhydroxy compound resin, defoamer 0.1-0.4 part, thickening agent
0.1-0.4 part, levelling agent 0.2-0.5 part, organosilicon dry lubrication prescription 0.05-0.2 part, drier 0.05-0.1 part, cross-linking agent 0.2-
0.4 part.
Solvent-free polyhydroxy compound resin is solvent-free PEPA hybrid resin or the mixing of solvent-free polyether polyhydric alcohol
Resin, preferably solvent-free PEPA hybrid resin, all there is production in this resin domestic Hua Feng, Xu Chuan etc. producer.
Described isocyanates are toluene di-isocyanate(TDI).Solvent-free polyhydroxy compound resin portion and isocyanate moiety divide
In terms of oh and nco, the oh:nco proportioning of the two is not preferably 2:1.1 ~ 1.3(mol ratio).
Defoamer in the application is selected from polyether-modified polysiloxane defoamer；Described thickening agent is selected from ca-908 water
Property polyurethane thickener, k-800 aqueous polyurethane thickener or ca-902 aqueous polyurethane thickener.Levelling agent is selected from long brightness
Bnk-lk600 levelling agent, d-3000 aqueous polyurethane levelling agent or ra1103 aqueous polyurethane levelling agent；Described organosilicon is done
Lubrication prescription is selected from the dry lubrication prescription of molykote 557 organosilicon or the dry lubrication prescription of DOW CORNING 557 organosilicon.Drier is tin dilaurate two
Butyl tin；Described cross-linking agent is selected from dt-100 cross-linking agent, eva middle temperature cross-linking agent, xr-100 cross-linking agent, dt-100w high-temperature cross-linking
Agent.
Can further include that in a component mill base is solvent-free mill base, domestic dark blue grade all has sale and produces.Catalyst
Select to determine, specially tertiary amine catalyst or organic metal class are urged with the property of solventfree resin a component polyol moiety
Agent.
Surface layer in this low voc Synthetic Leather and foaming layer carry out cast using the technique of the online solidification of double-component and dry
Drying.The concrete preparation method of this Synthetic Leather comprises the steps:
A, cast fabric: a component and b component are passed through batch can air pressure respectively according to proportioning and carries out to solvent-free dry method equipment line
Mix and be poured in release paper, realize uniformly coating by spray gun casting machine；80 DEG C -100 DEG C drying, drying time be 2～
10min, prepared surface layer resin；
B, pouring foaming layer resin: a component and b component are passed through batch can air pressure to solvent-free dry method equipment line respectively according to proportioning
On mixed and be poured on the surface layer resin of above-mentioned drying, and carry out half drying of 100 DEG C～120 DEG C of 1～3min；
C, laminating, ripening: carry out 100 DEG C～120 DEG C 5～15min by after the foaming layer resin laminating base fabric of half drying of step b
Baking oven ripening；
D, separate and wind: carry out release paper stripping after above-mentioned steps c to product ripening, winding obtain needed for without any solvent
Low voc Synthetic Leather.
Release paper in this law takes plain weave paper, using 40 DEG C～60 DEG C vacuum pattern absorbing behaviour in the lines of step d is processed
Make, the few restriction of traditional release paper decorative pattern can be broken, enable product to meet various demands.
Beneficial effects of the present invention:
1. the present invention has prevented to pollute from source, does not contain any organic solvent, to Producer and user in raw materials
All no any harm, product environmental protection, ecology, are synthetic leather industry transition and upgrade direction.The existing production of synthetic leather will be overturned former
Material and technique.Voc is close to 0.
2. energy consumption is low, because this product does not contain solvent, without solvent discharge, without air exhausting device, greatly reduces comprehensive energy consumption.
3. investment reduction, because this product does not contain solvent, without solvent recovery and wastewater treatment equipment, reduces investment rule
Mould.
4. product quality is excellent: the present invention is to reach low voc to require, and uses solvent-free polyurethane resin and belongs to double groups
Part crosslinking curing type, and film forming is plentiful, its physical property, considerably beyond solvent borne polyurethane, has splendid chemical-resistant
Can, according to the aliphatic isocyanates of color inhibition, its anti-yellowing property is tested more than more than 4 grades.
Specific embodiment
Embodiment 1
A kind of low voc Synthetic Leather, this synthetic leather main facet layer and foaming layer, reduce voc, surface layer and foaming for thorough
Layer is all prepared from using double component solvent-free polyurethane, carries out cast drying using the technique of the online solidification of double-component and is obtained.
Dual-component polyurethane resin be divided into a two components of b.A group is divided into solvent-free polyhydroxy compound resin portion, and b group is divided into Carbimide.
Ester resin portion.The quality composition of a component: solvent-free 100 parts of PEPA hybrid resin (Xu Chuan) is polyether-modified poly- organic
0.1 part of silicone antifoam agent, 0.2 part of ca-908 aqueous polyurethane thickener, 0.2 part of long brightness bnk-lk600 levelling agent,
0.1 part of the dry lubrication prescription of molykote 557 organosilicon, 0.05 part of dibutyl tin laurate, 0.3 part of dt-100 cross-linking agent, no molten
0.1 part of agent mill base, 0.1 part of tertiary amine catalyst.
Concrete preparation method comprises the steps:
1. pour into a mould fabric: by solventfree resin surface layer resin a component (containing various auxiliary agents) with b component according to proportioning in mass ratio 2:
1.2, pass through batch can air pressure respectively and mixed to solvent-free dry method equipment line and be poured in release paper (plain weave paper), pass through
Spray gun casting machine is realized uniformly coating.80 DEG C of drying, drying time is 4min.
2. pouring foaming layer resin: on the surface layer resin of above-mentioned drying, as step 1 technique, cast is solvent-free
Foaming layer resin a component is poured into a mould according to the proportioning ratio of 2:1.2 in mass ratio with b component, and carries out 100 ° of drying times and be
2min half is dried.
3. laminating, ripening: carry out baking oven ripening by after the foaming layer resin laminating base fabric of half drying of step 2.100 ° of bakings
The dry time is 6min,.
4. separate and wind: carry out release paper stripping after above-mentioned steps 3 to product ripening, winding obtain needed for without any
The low voc Synthetic Leather of solvent
5. lines is processed: is required according to lines, carries out heating 50 ° of vacuum pattern absorbings using corresponding vacuum wheel.Winding, obtains finished product.
Its voc close to 0, test more than more than 4 grades by anti-yellowing property.
Embodiment 2
Prepare low voc Synthetic Leather, wherein the quality composition of a component: solvent-free PEPA as described in Example 1
100 parts of hybrid resin (Xu Chuan), 0.2 part of polyether-modified polysiloxane defoamer, pur62 aqueous polyurethane thickener
0.3 part, 0.2 part of long brightness bnk-lk600 levelling agent, 0.1 part of the dry lubrication prescription of DOW CORNING 557 organosilicon, dibutyl tin laurate
0.1 part, 0.2 part of dt-100 cross-linking agent, 0.1 part of solvent-free mill base, 0.1 part of tertiary amine catalyst.Its voc close to 0, color inhibition
Performance test is more than more than 4 grades.
Claims (10)
1. a kind of low voc Synthetic Leather it is characterised in that it includes surface layer and foaming layer, all adopt by described surface layer and foaming layer
Made with dual-component polyurethane resin, this dual-component polyurethane resin is made up of a component and b component, wherein a group be divided into solvent-free
Polyhydroxy compound resin portion, b group is divided into isocyanate moiety, the consumption oh of the two in terms of oh and nco respectively of a, b component:
Nco proportioning is 2:1 ~ 1.5；The quality of described a component consists of: 100 parts of solvent-free polyhydroxy compound resin, defoamer 0.1-
0.4 part, thickening agent 0.1-0.4 part, levelling agent 0.2-0.5 part, organosilicon dry lubrication prescription 0.05-0.2 part, drier 0.05-0.1
Part, cross-linking agent 0.2-0.4 part, solvent-free mill base 0.1-0.4 part, catalyst 0.1-0.4 part.
2. low voc Synthetic Leather according to claim 1 is it is characterised in that described solvent-free polyhydroxy compound resin
For solvent-free PEPA hybrid resin or solvent-free polyether polyhydric alcohol hybrid resin；Described isocyanates are toluene diisocyanate
Acid esters.
3. low voc Synthetic Leather according to claim 2 is it is characterised in that described solvent-free polyhydroxy compound resin
For solvent-free PEPA hybrid resin；Described isocyanates are toluene di-isocyanate(TDI)；Solvent-free polyhydroxy compound resin
Part and isocyanate moiety respectively with oh and nco count the oh:nco proportioning of the two as 2:1.1 ~ 1.3.
4. low voc Synthetic Leather according to claim 1 is it is characterised in that described defoamer is selected from polyether-modified gathering
Organosiloxane defoamer；Described thickening agent be selected from ca-908 aqueous polyurethane thickener, k-800 aqueous polyurethane thickener or
Ca-902 aqueous polyurethane thickener.
5. low voc Synthetic Leather according to claim 1 is it is characterised in that described levelling agent is selected from long brightness bnk-
Lk600 levelling agent, d-3000 aqueous polyurethane levelling agent or ra1103 aqueous polyurethane levelling agent；The dry lubrication prescription of described organosilicon
Selected from the dry lubrication prescription of molykote 557 organosilicon or the dry lubrication prescription of DOW CORNING 557 organosilicon.
6. low voc Synthetic Leather according to claim 1 is it is characterised in that described drier is tin dilaurate two fourth
Ji Xi；Described cross-linking agent is selected from dt-100 cross-linking agent, eva middle temperature cross-linking agent, xr-100 cross-linking agent, dt-100w high-temperature cross-linking agent.
7. low voc Synthetic Leather according to claim 1 is it is characterised in that described catalyst is tertiary amine catalyst
Or organometallic catalysts.
8. low voc Synthetic Leather according to claim 1 is it is characterised in that described surface layer and foaming layer are using double groups
It is prepared that the technique of the online solidification of part carries out cast drying.
9. the preparation method of the low voc Synthetic Leather described in claim 1 is it is characterised in that comprise the steps:
A, cast fabric: a component and b component are passed through batch can air pressure respectively according to proportioning and carries out to solvent-free dry method equipment line
Mix and be poured in release paper, realize uniformly coating by spray gun casting machine；80 DEG C -100 DEG C drying, drying time be 2～
10min, prepared surface layer resin；
B, pouring foaming layer resin: a component and b component are passed through batch can air pressure to solvent-free dry method equipment line respectively according to proportioning
On mixed and be poured on the surface layer resin of above-mentioned drying, and carry out half drying of 100 DEG C～120 DEG C of 1～3min；
C, laminating, ripening: carry out 100 DEG C～120 DEG C 5～15min by after the foaming layer resin laminating base fabric of half drying of step b
Baking oven ripening；
D, separate and wind: carry out release paper stripping after above-mentioned steps c to product ripening, winding obtain needed for without any solvent
Low voc Synthetic Leather.
10. method according to claim 9 is it is characterised in that described release paper takes plain weave paper, at the lines of step d
40 DEG C～60 DEG C vacuum pattern absorbing operations are adopted in reason.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015104305677 | 2015-07-22 | ||
| CN201510430567 | 2015-07-22 |
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| Publication Number | Publication Date |
|---|---|
| CN106366274A true CN106366274A (en) | 2017-02-01 |
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ID=57833788
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511008510.4A Pending CN106366274A (en) | 2015-07-22 | 2015-12-29 | Low-VOC polyurethane synthetic leather and production method thereof |
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|---|---|
| CN (1) | CN106366274A (en) |
| WO (1) | WO2017012239A1 (en) |
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| CN107446100A (en) * | 2017-08-18 | 2017-12-08 | 江苏宝泽高分子材料股份有限公司 | A kind of environment-friendly type solvent-free polyurethane material and preparation method thereof |
| CN108017770A (en) * | 2017-12-29 | 2018-05-11 | 浙江华峰合成树脂有限公司 | The high bright polyurethane leather resin of solvent-free non yellowing and preparation method and application |
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| CN110656506A (en) * | 2019-09-16 | 2020-01-07 | 安徽安利材料科技股份有限公司 | Inorganic particle composite polyurethane synthetic leather and preparation method and application thereof |
| CN111440290A (en) * | 2020-04-16 | 2020-07-24 | 上海中路实业有限公司 | Solvent-free polyurethane resin and preparation method and application thereof |
| CN111593574A (en) * | 2019-02-20 | 2020-08-28 | 上海海优威应用材料技术有限公司 | Environment-friendly EVA synthetic leather subjected to surface grafting treatment and preparation method thereof |
| CN112376290A (en) * | 2020-10-22 | 2021-02-19 | 广东齐力聚合材料有限公司 | Preparation method of deep-texture solvent-free synthetic leather |
| CN114921964A (en) * | 2022-05-16 | 2022-08-19 | 浙江禾欣新材料有限公司 | Antibacterial and anti-mildew polyurethane synthetic leather special for automobile seat leather and preparation method thereof |
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