CN107401057A - A kind of synthetic leather production method based on aqueous photo-curing polyurethane - Google Patents
A kind of synthetic leather production method based on aqueous photo-curing polyurethane Download PDFInfo
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- CN107401057A CN107401057A CN201710640410.6A CN201710640410A CN107401057A CN 107401057 A CN107401057 A CN 107401057A CN 201710640410 A CN201710640410 A CN 201710640410A CN 107401057 A CN107401057 A CN 107401057A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
- D06N3/0036—Polyester fibres
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
- D06N3/0038—Polyolefin fibres
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—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
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
- D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
Abstract
The invention discloses a kind of synthetic leather production method based on aqueous photo-curing polyurethane, comprise the following steps：1）The slurry of impregnation base fabric is prepared, the slurry includes following components by weight：Solid content for 35% 60% aqueous photo-curing polyurethane：100 parts；Deionized water：100 120 parts；Light trigger：2 10 parts；Reactive diluent：10 50 parts；Foaming agent：10 15 parts；Said components are mixed after disperseing, adjust the viscosity of slurry by adjusting solvent load, it is 1000cps~20000cps to make slurry viscosity；2）Impregnation；3）Photocuring；4）Solvent, which dries, to be removed；5）According to the type of base fabric, corresponding processing mode is taken, obtains aqueous photo-curing polyurethane synthetic leather.The invention has the advantages that using aqueous photo-curing polyurethane in wet method, avoid using DMF, solidified using ultraviolet light, curing efficiency is higher, product is not only possessed excellent mechanical property, also with it is safe and environment-friendly the characteristics of, be more beneficial for health.
Description
Technical field
The invention belongs to artificial leather manufacturing technology, is related to a kind of machining manufacture of synthetic leather, a kind of water-based poly- ammonia
The method of ester ultraviolet light solidification.
Background technology
China also faces huge city as synthetic leather big producer, enterprise while yield and output value steady-state growth
Field pressure, especially European market.On December 19th, 2012, the chemical management board in Europe disclose the 8th batch and pay high attention to material time
List is selected, wherein just including N ' dinethylformamides（DMF）, by convention, European Union will add year by year for ordering within a certain time for DMF
Sternly, until finally banning DMF.Country faces this severe situation, and the standard with having put into effect limitation DMF, secondary standard is limited to
100 below ppm, primary standard are limited to 30 below ppm.At present, what synthetic leather field was conventional is solvent borne polyurethane（PU）,
It, which has, comes good water resistance and strength and elongation, but often using DMF as solvent, toxic solvent, inflammable and pollution environment, in addition,
Equipment requirement is explosion-proof, also needs solvent recovery unit, and investment is larger, and also few enterprises can produce and meet EU criteria in China
Ecological synthetic leather.Water-based PU is using water as solvent, safety, energy-saving and environmental protection, and water-based PU synthetic leather will turn into following hair
Open up direction.
The content of the invention
In order to solve problems of the prior art, the present invention is directed to propose a kind of based on aqueous photo-curing polyurethane
Synthetic leather production method.
Technical scheme is as follows：
A kind of synthetic leather production method based on aqueous photo-curing polyurethane, it is characterised in that comprise the following steps：
1）The slurry of impregnation base fabric is prepared, the slurry includes following components by weight：
Solid content is 35%-60% aqueous photo-curing polyurethane：100 parts；
Deionized water：100-120 parts；
Light trigger：2-10 parts；
Reactive diluent：10-50 parts；
Foaming agent：10-15 parts；
Said components are mixed after disperseing, adjust the viscosity of slurry by adjusting solvent load, it is 1000cps to make slurry viscosity
~20000cps；
2）Impregnation：Base fabric is immersed into step 1）Preparation slurry in, be impregnated with lucifuge, be made semi-finished product；
3）Photocuring：By the semi-finished product after impregnation, ultraviolet light curing apparatus, UV are passed through with 1 m/min-100 m/min speed
Radiation curing, the semi-finished product after being solidified；
4）Solvent, which dries, to be removed：Semi-finished product after solidification are subjected to drying and processing, the solvent of residual is removed, obtains synthetic leather semi-finished product；
5）According to the type of base fabric, corresponding processing mode is taken, obtains aqueous photo-curing polyurethane synthetic leather.
A kind of described synthetic leather production method based on aqueous photo-curing polyurethane, it is characterised in that the step 1）
The type of middle base fabric is COPET/PET or LDPE/PA；The material of the base fabric uses looped fabric, woven fabric or non-woven fabrics.
A kind of described synthetic leather production method based on aqueous photo-curing polyurethane, it is characterised in that the step 1）
In aqueous photo-curing polyurethane use outer emulsion-type polyurethane, and carry photosensitive group, and aqueous photo-curing polyurethane
Using cationic, anionic or nonionic.
A kind of described synthetic leather production method based on aqueous photo-curing polyurethane, it is characterised in that the step 1）
In light trigger use water-soluble photoinitiator, such as water-based thioxanthone analog derivative, water-based benzophenone derivates, water-based peace
Cease fragrant derivative, water-based benzil analog derivative, condensed-nuclei aromatics class, water-based acetophenone derivs.
A kind of described synthetic leather production method based on aqueous photo-curing polyurethane, it is characterised in that the step 1）
In reactive diluent use radical UV curing reactive diluent, such as acrylic acid acyl-oxygen base class, vinyl and allylic
Monomer；Or use cation photocuring reactive diluent, such as vinyl ethers, the monomer of epoxy radicals.
A kind of described synthetic leather production method based on aqueous photo-curing polyurethane, it is characterised in that the step 1）
In foaming agent corresponding foaming agent is used according to the material and type of base fabric.
A kind of described synthetic leather production method based on aqueous photo-curing polyurethane, it is characterised in that the step 3）
In ultraviolet light curing apparatus using uviol lamp, ultraviolet exposure machine, one or more combinations in desk-top conveyer belt UV curing ovens.
A kind of described synthetic leather production method based on aqueous photo-curing polyurethane, it is characterised in that the step 4）
In drying using baking oven heating, drying, infrared heating drying, one or more combinations in microwave heating, drying.
Described a kind of synthetic leather production method based on aqueous photo-curing polyurethane, it is characterised in that the base fabric
Type uses COPET/PET, step 5）Operating process is：By synthetic leather semi-finished product, 55-65 minutes in 65-75 DEG C of thermokalite are passed through,
Extract the COPET as marine facies；It is being passed through the aqueous solution containing acetic acid；Cleaned with deionized water；Oil, fall soft drying, obtain
Final products；
A kind of described synthetic leather production method based on aqueous photo-curing polyurethane, it is characterised in that the type of the base fabric
Using LDPE/PA, step 5）Operating process is：By synthetic leather semi-finished product, 55-65 minutes in 75-85 DEG C of hot toluene are passed through, are extracted
LDPE as " marine facies "；Oil, fall soft drying, obtain final products.
The invention has the advantages that by the way that aqueous photo-curing polyurethane is scattered in deionized water, addition contains can
Polymer functional group's organic molecule, the viscosity of regulation system, lucifuge impregnation, into after base fabric, in UV irradiations and light trigger
Under effect, photocuring is produced, and in the presence of foaming agent, form the PU cured layers of foam structure；Using water-based in wet method
Light-cured polyurethane, avoid using DMF, solidified using ultraviolet light, curing efficiency is higher, product is not only possessed excellent mechanics
Performance, also with it is safe and environment-friendly the characteristics of, be more beneficial for health.
Embodiment
With reference to embodiment, the present invention is further illustrated, but embodiment does not form and application claims are protected
Protect the limitation of scope.
Embodiment 1
（1）Prepare impregnation looped fabric（COPET/PET）Slurry, the slurry includes following components by weight：
Solid content is 35% aqueous photo-curing polyurethane YT-8202：100 parts；
Deionized water：100 parts；
Light trigger 1173：7 parts；
Reactive diluent（Three four propane diols double methacrylates of contracting）：18 parts；
Foaming agent（Sodium acid carbonate）：15 parts；
The cps of electrocondution slurry viscosity 1000 is measured by rotation viscometer（30℃）.
（2）It is impregnated with looped fabric：Looped fabric is immersed（1）In the water paste of step, it is impregnated with lucifuge, synthetic leather is made
Semi-finished product.
（3）Photocuring：By the semi-finished product after impregnation, with 8 m/min speed, by UV LED lines road exposure machine, obtain
Semi-finished product after solidification.
（4）Solvent, which dries, to be removed：By the semi-finished product after solidification by 100 DEG C of baking oven, the moisture of residual is removed.
（5）Alkali reduction：By synthetic leather semi-finished product, it is passed through in 70 DEG C of thermokalites 60 minutes, extracts the COPET as " marine facies ".
（6）Acid neutralizes：Synthetic leather semi-finished product after Alkali reduction, pass through the aqueous solution containing acetic acid.
（7）Washing：Synthetic leather semi-finished product are cleaned with deionized water.
（8）Oil, fall soft drying, obtain final products.
Embodiment 2
（1）Prepare impregnation woven fabric（COPET/PET）Slurry, the slurry includes following components by weight：
Solid content is 60% aqueous photo-curing polyurethane YT-717A：100 parts；
Deionized water：120 parts；
Light trigger TMPPL：9 parts；
Reactive diluent（Acrylic acid ethyl diethyl phosphonate）：10 parts；
Foaming agent（Ammonium hydrogen carbonate）：13 parts；
The cps of electrocondution slurry viscosity 2000 is measured by rotation viscometer（30℃）.
（2）It is impregnated with woven fabric：Woven fabric is immersed（1）In the water paste of step, it is impregnated with lucifuge, synthetic leather is made
Semi-finished product.
（3）Photocuring：By the semi-finished product after impregnation, with 5 m/min speed, by desk-top conveyer belt UV curing ovens, obtain
Semi-finished product after to solidification.
（4）Solvent, which dries, to be removed：Semi-finished product after solidification are heated by microwave dryer, remove the moisture of residual.
（5）Alkali reduction：By synthetic leather semi-finished product, it is passed through in 70 DEG C of thermokalites 60 minutes, extracts the COPET as " marine facies ".
（6）Acid neutralizes：Synthetic leather semi-finished product after Alkali reduction, pass through the aqueous solution containing acetic acid.
（7）Washing：Synthetic leather semi-finished product are cleaned with deionized water.
（8）Oil, fall soft drying, obtain final products.
Embodiment 3
（1）The slurry of impregnation non-woven fabrics (LDPE/PA) is prepared, the slurry includes following components by weight：
Solid content is 40% aqueous photo-curing polyurethane YT8200：100 parts；
Deionized water：110 parts；
Light trigger 907：10 parts；
Reactive diluent（Trimethylolpropane diacrylate）：20 parts；
Foaming agent（Ammonium nitrate）：10 parts；
The cps of electrocondution slurry viscosity 1500 is measured by rotation viscometer（30℃）.
（2）It is impregnated with non-woven fabrics：Non-woven fabrics is immersed（1）In the water paste of step, it is impregnated with lucifuge, synthetic leather is made
Semi-finished product.
（3）Photocuring：By the semi-finished product after impregnation, with 3 m/min speed, by ultra violet lamp, after obtaining solidification
Semi-finished product.
（4）Solvent, which dries, to be removed：Semi-finished product after solidification are heated by infrared heating pipe, the moisture of residual is removed, is closed
Finished leather semi-finished product.
（5）Toluene is reduced：By synthetic leather semi-finished product, it is passed through in 80 DEG C of hot toluenes 60 minutes, extracts as " marine facies "
LDPE。
（6）Oil, fall soft drying, obtain final products.
Embodiment 4
（1）Prepare impregnation non-woven fabrics（COPET/PET）Slurry, the slurry includes following components by weight：
Solid content is 35% aqueous polyurethane YT-8202：100 parts；
Deionized water：100 parts；
Light trigger 2959：4 parts；
Reactive diluent（Hydroxyethyl methacrylate）：12 parts；
Foaming agent（Calcium carbonate）：15 parts；
The cps of slurry viscosity 1000 is measured by rotation viscometer（30℃）.
（2）It is impregnated with non-woven fabrics：Non-woven fabrics is immersed（1）In the water paste of step, it is impregnated with lucifuge, synthetic leather is made
Semi-finished product.
（3）Photocuring：By the semi-finished product after impregnation, with 8 m/min speed, by UV LED lines road exposure machine, obtain
Semi-finished product after solidification.
（4）Solvent, which dries, to be removed：By the semi-finished product after solidification by 100 DEG C of baking oven, the moisture of residual is removed.
（5）Alkali reduction：By synthetic leather semi-finished product, it is passed through in 70 DEG C of thermokalites 60 minutes, extracts the COPET as " marine facies ".
（6）Acid neutralizes：Synthetic leather semi-finished product after Alkali reduction, pass through the aqueous solution containing acetic acid.
（7）Washing：Synthetic leather semi-finished product are cleaned with deionized water.
（8）Oil, fall soft drying, obtain final products.
Embodiment 5
（1）Prepare impregnation non-woven fabrics（LDPE/PA）Slurry, the slurry includes following components by weight：
Solid content is 60% aqueous photo-curing polyurethane YT-717A：100 parts；
Deionized water：120 parts；
Light trigger TMPPL：10 parts；
Reactive diluent（Acrylic acid ethyl diethyl phosphonate）：30 parts；
Foaming agent（Ammonium hydrogen carbonate）：13 parts；
The cps of electrocondution slurry viscosity 2000 is measured by rotation viscometer（30℃）.
（2）Containing non-woven fabrics：Non-woven fabrics is immersed（1）In the water paste of step, it is impregnated with lucifuge, synthetic leather half is made
Finished product.
（3）Photocuring：By the semi-finished product after impregnation, with 5 m/min speed, by desk-top conveyer belt UV curing ovens, obtain
Semi-finished product after to solidification.
（4）Solvent, which dries, to be removed：Semi-finished product after solidification are heated by microwave dryer, remove the moisture of residual.
（5）Toluene is reduced：By synthetic leather semi-finished product, it is passed through in 80 DEG C of hot toluenes 60 minutes, extracts as " marine facies "
LDPE。
（6）Oil, fall soft drying, obtain final products.
Embodiment 6
（1）Prepare impregnation non-woven fabrics（LDPE/PA）Slurry, the slurry includes following components by weight：
Solid content is 35% aqueous polyurethane YT-8202：100 parts；
Deionized water：100 parts；
Light trigger 2959：2 parts；
Reactive diluent（Hydroxyethyl methacrylate）：50 parts；
Foaming agent（Calcium carbonate）：15 parts；
The cps of slurry viscosity 1000 is measured by rotation viscometer（30℃）.
（2）Containing non-woven fabrics：Non-woven fabrics is immersed（1）In the water paste of step, it is impregnated with lucifuge, synthetic leather half is made
Finished product.
（3）Photocuring：By the semi-finished product after impregnation, with 5 m/min speed, by desk-top conveyer belt UV curing ovens, obtain
Semi-finished product after to solidification.
（4）Solvent, which dries, to be removed：Semi-finished product after solidification are heated by microwave dryer, remove the moisture of residual.
（5）Toluene is reduced：By synthetic leather semi-finished product, it is passed through in 80 DEG C of hot toluenes 60 minutes, extracts as " marine facies "
LDPE。
（6）Oil, fall soft drying, obtain final products.
Claims (10)
1. a kind of synthetic leather production method based on aqueous photo-curing polyurethane, it is characterised in that comprise the following steps：
1）The slurry of impregnation base fabric is prepared, the slurry includes following components by weight：
Solid content is 35%-60% aqueous photo-curing polyurethane：100 parts；
Deionized water：100-120 parts；
Light trigger：2-10 parts；
Reactive diluent：10-50 parts；
Foaming agent：10-15 parts；
Said components are mixed after disperseing, adjust the viscosity of slurry by adjusting solvent load, it is 1000cps to make slurry viscosity
~20000cps；
2）Impregnation：Base fabric is immersed into step 1）Preparation slurry in, be impregnated with lucifuge, be made semi-finished product；
3）Photocuring：By the semi-finished product after impregnation, ultraviolet light curing apparatus, UV are passed through with 1 m/min-100 m/min speed
Radiation curing, the semi-finished product after being solidified；
4）Solvent, which dries, to be removed：Semi-finished product after solidification are subjected to drying and processing, the solvent of residual is removed, obtains synthetic leather semi-finished product；
5）According to the type of base fabric, corresponding processing mode is taken, obtains aqueous photo-curing polyurethane synthetic leather.
A kind of 2. synthetic leather production method based on aqueous photo-curing polyurethane according to claim 1, it is characterised in that
The step 1）The type of middle base fabric is COPET/PET or LDPE/PA；The material of the base fabric using looped fabric, woven fabric or
Non-woven fabrics.
A kind of 3. synthetic leather production method based on aqueous photo-curing polyurethane according to claim 1, it is characterised in that
The step 1）In aqueous photo-curing polyurethane use outer emulsion-type polyurethane, and carry photosensitive group, and water-based light
Solidification polyurethane uses cationic, anionic or nonionic.
A kind of 4. synthetic leather production method based on aqueous photo-curing polyurethane according to claim 1, it is characterised in that
The step 1）In light trigger use water-soluble photoinitiator.
A kind of 5. synthetic leather production method based on aqueous photo-curing polyurethane according to claim 1, it is characterised in that
The step 1）In reactive diluent using radical UV curing reactive diluent or using cation photocuring activity dilution
Agent.
A kind of 6. synthetic leather production method based on aqueous photo-curing polyurethane according to claim 1, it is characterised in that
The step 1）In foaming agent corresponding foaming agent is used according to the type of base fabric.
A kind of 7. synthetic leather production method based on aqueous photo-curing polyurethane according to claim 1, it is characterised in that
The step 3）In ultraviolet light curing apparatus using uviol lamp, ultraviolet exposure machine, one kind in desk-top conveyer belt UV curing ovens
Or multiple combinations.
A kind of 8. synthetic leather production method based on aqueous photo-curing polyurethane according to claim 1, it is characterised in that
The step 4）In drying using baking oven heating, drying, infrared heating drying, one or more groups in microwave heating, drying
Close.
9. a kind of synthetic leather production method based on aqueous photo-curing polyurethane according to claim 1 or 2, its feature exist
In the type of the base fabric uses COPET/PET, step 5）Operating process is：By synthetic leather semi-finished product, 65-75 DEG C of heat is passed through
55-65 minutes in alkali, extract the COPET as marine facies；It is being passed through the aqueous solution containing acetic acid；Cleaned with deionized water；Oil,
Soft drying is fallen, obtains final products.
10. a kind of synthetic leather production method based on aqueous photo-curing polyurethane according to claim 1 or 2, its feature
It is, the type of the base fabric uses LDPE/PA, step 5）Operating process is：By synthetic leather semi-finished product, 75-85 DEG C of heat is passed through
55-65 minutes in toluene, extract the LDPE as " marine facies "；Oil, fall soft drying, obtain final products.
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| CN103410009A (en) * | 2013-04-19 | 2013-11-27 | 晋江市闽高纺织科技有限公司 | High-breathability superfine fiber polyurethane suede synthetic leather, preparation technology and products prepared from synthetic leather |
| CN105755844A (en) * | 2016-04-26 | 2016-07-13 | 丽水学院 | Preparation method of photocuring base for synthetic leather |
| CN106283704A (en) * | 2016-08-19 | 2017-01-04 | 安徽安利材料科技股份有限公司 | The preparation method of colourless migration playshoes suede Synthetic Leather |
| CN106638017A (en) * | 2016-12-14 | 2017-05-10 | 浙江禾欣新材料有限公司 | Manufacturing method of ecological environment protection polyurethane superfine fiber synthetic leather |
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