CN109208342A - A kind of environment-friendly solvent-free Synthetic Leather and its manufacturing method - Google Patents
A kind of environment-friendly solvent-free Synthetic Leather and its manufacturing method Download PDFInfo
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- CN109208342A CN109208342A CN201811052238.3A CN201811052238A CN109208342A CN 109208342 A CN109208342 A CN 109208342A CN 201811052238 A CN201811052238 A CN 201811052238A CN 109208342 A CN109208342 A CN 109208342A
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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
- 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
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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
- D06N3/004—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 flocked webs or pile fabrics upon which a resin is applied; Teasing, raising web before resin application
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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
- D06N3/0043—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
- D06N3/0045—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 obtained by applying a ready-made foam layer; obtained by compressing, crinkling or crushing a foam layer, e.g. Kaschierverfahren für Schaumschicht
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- 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
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- 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
- D06N3/0065—Organic pigments, e.g. dyes, brighteners
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- 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
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- 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
- D06N3/147—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 characterised by the isocyanates used
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- 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
- D06N2201/00—Chemical constitution of the fibres, threads or yarns
- D06N2201/04—Vegetal fibres
- D06N2201/042—Cellulose fibres, e.g. cotton
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- D06N2205/00—Condition, form or state of the materials
- D06N2205/02—Dispersion
- D06N2205/023—Emulsion, aqueous dispersion, latex
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- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
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- Engineering & Computer Science (AREA)
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Wood Science & Technology (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
It include base fabric the invention discloses a kind of environment-friendly solvent-free Synthetic Leather, aqueous covercoat, aqueous adhesive layer and solvent-free AB expect foaming layer, it is characterized by: main being mixed at the aqueous polyurethane adhesive layer slurry being grouped as by following parts by weight of the aqueous adhesive layer: 800-1000 parts of aqueous polyurethane emulsion, 80-100 parts and aqueous color paste 50-60 parts of aqueous polyurethane crosslinking agent；Main being mixed at the AB slurry material being grouped as by following parts by weight of the solvent-free AB material foaming layer: 800-1000 parts of polyols blend, 1-30 parts of organo-metallic catalyst, 1-90 parts of organic amine catalyst, 300-2000 parts and isocyanates 500-1500 parts of filler.Preparation method of the invention includes the key steps such as coating surface layer, coating adhesive layer, coating AB material and maturation, Synthetic Leather and release paper can be immediately disconnected on production line, it saves a large amount of time, place and release paper etc., improves production efficiency, reduce production cost and environmentally friendly.
Description
Technical field
The present invention relates to synthetic leather manufacturing field, in particular to a kind of manufacturer of environment-friendly solvent-free Synthetic Leather
Method.
Background technique
China is synthetic leather production and consumption big country of the world.There are more than 1100 families of artificial leather synthetic leather enterprise in the whole nation at present, rule
Above more than 470 family of enterprise of mould, nearly more than 2000 item of production line are one of the pillar industries of China's light industry.2014, scale
Above 3,780,000 tons of enterprise's artificial leather synthetic leather yield, convert into 6,800,000,000 m2.Artificial leather synthetic leather has become some local industries
Important industry.
In recent years, with the continuous improvement of people's living standard and environmental consciousness, consumer for high-performance, high-quality,
The demand of the ecological synthetic leather of high-environmental persistently rises, and only domestic market is flat up to 200,000,000 to the demand of high-grade ecological synthetic leather
Rice/year.In addition, European & American Market also proposed new demand, especially sofa artificial leather, house ornamentation interior decoration leather, vapour to the ecological of synthetic leather
Contour zero formaldehyde of shelves product requirement of interior dressing leather, zero heavy-metal residual, while volatile organic content (VOC content) is no
Greater than 5 mg/Kg (leather).Thus, the cleanly production of synthetic leather industry is imperative.However, the manufacture of country's synthetic leather at present
Solvent borne polyurethane is mainly used, polyurethane contains a large amount of organic solvent, and the content of basic organic solvent is all in 50-80%
Left and right, and the ingredient of organic solvent is mostly toluene, dimethylformamide (DMFA), ethyl acetate (EAC), butanone (MEK) etc.,
All external environment can be escaped into a certain amount of volatilization in transport, production, influence environment, cause certain environmental problem, and
And these organic solvents can all endanger the health of worker.Followed by production process is complicated, to be at least through 2 procedures, the 1st
Wet process process, the 2nd is dry method, and there are also the semi-finished product for being exactly the production of wet process process to contain large quantity of moisture, and dry method is raw
It produces and contains a large amount of organic solvent, this large amount of moisture and process need a large amount of energy consumption.On the other hand process is complicated also to be brought
Influence, when process is more, the human resources of consumption are more, traditional handicraft expend manpower be novel process more than 2 times.This
Outside, in existing production process, ready-made synthetic leather will be wound together together with release paper in the production line, and synthetic leather is placed one
It fixes time after (such as 24 hours or longer), it, could be by synthetic leather and release after allowing solvent-free coating and aqueous coating to complete curing
Paper separation, obtains synthetic leather products.It requires a great deal of time in this way, place and release paper etc., to the production efficiency of product
Have a significant impact, there may be the problem that peel strength is low, aqueous covercoat and solvent-free AB material in physical property for similar product
The problem of adhesion strength between foaming layer is poor, is easy to happen separation.It is a kind of environmentally friendly therefore, it is necessary to design, and save work
The Synthetic Leather of sequence and cost.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of environment-friendly solvent-free Synthetic Leathers and preparation method thereof, produce
The surface layer of product and foaming layer are not readily separated, and manufacturing process environmental protection saves process, reduces cost.
In order to solve the above-mentioned technical problem, the technical solution of the present invention is as follows:
A kind of environment-friendly solvent-free Synthetic Leather, including base fabric, aqueous covercoat, aqueous adhesive layer and solvent-free AB material hair
Alveolar layer, it is characterised in that: the aqueous adhesive layer is mainly by following parts by weight at the aqueous polyurethane adhesive layer being grouped as
Slurry is mixed with: 800-1000 parts of aqueous polyurethane emulsion, 80-100 parts of aqueous polyurethane crosslinking agent and aqueous color paste
50-60 parts；The solvent-free AB material foaming layer is mainly by following parts by weight at the AB material foaming layer slurry mixing being grouped as
It is prepared: 800-1000 parts of polyols blend, 1-30 parts of organo-metallic catalyst, 1-90 parts of organic amine catalyst, filler
300-2000 parts and isocyanates 500-1500 parts.
Preferably, the aqueous adhesive layer is mainly by following parts by weight at the aqueous polyurethane adhesive layer slurry being grouped as
Material is mixed with: 1000 parts of aqueous polyurethane emulsion, 100 parts and 60 parts of aqueous color paste of aqueous polyurethane crosslinking agent.
Preferably, the solvent-free AB material foaming layer is mainly by following parts by weight at the solvent-free AB material hair being grouped as
Alveolar layer slurry is mixed with: 800 parts of polyols blend, 30 parts of organo-metallic catalyst, and 90 parts of organic amine catalyst,
2000 parts and 1500 parts of isocyanates of filler.
Preferably, main the mixing at the aqueous polyurethane fabric slurry being grouped as by following parts by weight of the aqueous covercoat
Conjunction is prepared: 1000 parts of aqueous polyurethane emulsion, 5-10 parts of thickener, and 5-15 parts of aqueous defoamer, aqueous color paste 50-60
Part.
Preferably, main the mixing at the aqueous polyurethane fabric slurry being grouped as by following parts by weight of the aqueous covercoat
Conjunction is prepared: 1000 parts of aqueous polyurethane emulsion, 10 parts of thickener, 15 parts of aqueous defoamer, 60 parts of aqueous color paste.
Preferably, the base fabric is the one of which of imitative velveteen, pure cotton cloth, polyester-mixed cotton cloth or flannelette.
It is furthermore preferred that the base fabric is imitative velveteen.
The present invention also provides a kind of preparation methods of environment-friendly solvent-free Synthetic Leather, comprising the following steps:
Step 1: coating surface layer: being coated with polyurethane fabric slurry in release paper, and coating thickness is controlled in 0.1-0.2mm,
To obtain aqueous covercoat after 95-110 DEG C of drying forming；
Step 2: aqueous polyurethane adhesive layer slurry, coating coating adhesive layer: are applied on the aqueous covercoat made from step 1
Thickness control is in 0.1-0.2mm, to obtain aqueous adhesive layer after 95-110 DEG C of drying forming；
Step 3: the material hair of AB described in claim 1 or 3 coating AB material: is coated on the aqueous adhesive layer made from step 2
Alveolar layer slurry material, solvent-free AB material foaming layer is made in 0.5-0.8mm, with 80-150 DEG C of baking is half-dried in coating thickness control, and obtains
Obtain synthetic leather semi-finished product；
Step 4: maturation: the synthetic leather semi-finished product that step 3 obtains being bonded with base fabric and remove release paper, are then carried out
It is dried with 120-140 DEG C, environment-friendly solvent-free Synthetic Leather is made in curing, rolling after cooling.
It is furthermore preferred that the preparation method of the environment-friendly solvent-free Synthetic Leather, it is characterised in that: including following step
It is rapid:
Step 1: coating surface layer: being coated with polyurethane fabric slurry in release paper, coating thickness control in 0.15mm, with
Aqueous covercoat is obtained after 100 DEG C of drying formings；
Step 2: coating adhesive layer: coating power aqueous polyurethane adhesive layer slurry on the aqueous covercoat made from step 1 applies
Cloth thickness control is in 0.15mm, to obtain aqueous adhesive layer after 100 DEG C of drying formings；
Step 3: AB material coating AB material: is coated on the aqueous adhesive layer made from step 2 using solvent-free slurry perfusion machine
Foaming layer slurry, solvent-free AB material foaming layer is made in 0.6mm, with 130 DEG C of bakings are half-dried in coating thickness control, and is synthesized
Remove from office semi-finished product；
Step 4: maturation: the synthetic leather semi-finished product that step 3 obtains being bonded with base fabric and remove release paper, are then carried out
It is dried with 130 DEG C, environment-friendly solvent-free Synthetic Leather is made in curing, rolling after cooling.
Above step carries out in the producing line that flowing water linear velocity is 16 ms/min.
By adopting the above technical scheme, due to using solvent-free AB material to become a useful person in entire production procedure as the group of foaming layer
Material is free of organic solvent, to more environment-friendly.Furthermore the aqueous covercoat in release paper through aqueous adhesive layer with it is solvent-free
AB expects foaming layer bonding, then is bonded with base fabric, realizes that synthetic leather and release paper are immediately disconnected, saves the wet process in conventional processes
It process and saves and will save space and release paper so that production efficiency improves leather and time for curing together of release paper,
Reduce production cost.In addition, the process of heating, drying accelerates as the polyalcohol and isocyanates in the composition material of foaming layer
Reaction, realize the firm connection of aqueous polyurethane surface layer and solvent-free AB material foaming layer, effective Synthetic Leather increases stripping
From intensity, to obtain the Synthetic Leather of high physical property.
Specific embodiment
Specific embodiments of the present invention will be further explained below.It should be noted that for these implementations
The explanation of mode is used to help understand the present invention, but and does not constitute a limitation of the invention.In addition, this hair disclosed below
Technical characteristic involved in bright each embodiment can be combined with each other as long as they do not conflict with each other.
1 environment-friendly solvent-free Synthetic Leather of embodiment and preparation method thereof
Environment-friendly solvent-free Synthetic Leather, including base fabric, aqueous covercoat, aqueous adhesive layer and solvent-free AB material foaming
Layer: main being mixed at the aqueous polyurethane adhesive layer slurry being grouped as by following parts by weight of aqueous adhesive layer:
1000 parts of aqueous polyurethane emulsion, 100 parts and 60 parts of aqueous color paste of aqueous polyurethane crosslinking agent；Solvent-free AB expects foaming layer master
To expect that foaming layer slurry being mixed at the AB being grouped as by following parts by weight: 800 parts of polyols blend, organic
30 parts of metallic catalyst, 90 parts of organic amine catalyst, 2000 parts and 1500 parts of isocyanates of filler.
When preparing aqueous covercoat, preferred main mixing at the aqueous polyurethane fabric slurry being grouped as by following parts by weight
It closes and prepares: 1000 parts of aqueous polyurethane emulsion, 10 parts of thickener, 15 parts of aqueous defoamer, 60 parts of aqueous color paste.
It is preferred that imitative velveteen is as base fabric.
Environment-friendly solvent-free Synthetic Leather the preparation method is as follows:
Step 1: coating surface layer: being coated with polyurethane fabric slurry in release paper, coating thickness control in 0.15mm, with
Aqueous covercoat is obtained after 100 DEG C of drying formings；
Step 2: coating adhesive layer: coating power aqueous polyurethane adhesive layer slurry on the aqueous covercoat made from step 1 applies
Cloth thickness control is in 0.15mm, to obtain aqueous adhesive layer after 100 DEG C of drying formings；
Step 3: AB material coating AB material: is coated on the aqueous adhesive layer made from step 2 using solvent-free slurry perfusion machine
Foaming layer slurry, solvent-free AB material foaming layer is made in 0.6mm, with 130 DEG C of bakings are half-dried in coating thickness control, and is synthesized
Remove from office semi-finished product；
Step 4: maturation: the synthetic leather semi-finished product that step 3 obtains being bonded with base fabric and remove release paper, are then carried out
It is dried with 130 DEG C, curing, cooling placement is wound two days later is made environment-friendly solvent-free Synthetic Leather.
Above step carries out in the producing line that flowing water linear velocity is 16 ms/min.
2 environment-friendly solvent-free Synthetic Leather of embodiment and preparation method thereof
Environment-friendly solvent-free Synthetic Leather, including base fabric, aqueous covercoat, aqueous adhesive layer and solvent-free AB material foaming
Layer: main being mixed at the aqueous polyurethane adhesive layer slurry being grouped as by following parts by weight of aqueous adhesive layer:
800 parts of aqueous polyurethane emulsion, 80 parts and 50 parts of aqueous color paste of aqueous polyurethane crosslinking agent；Solvent-free AB material foaming layer is main
By being mixed at the AB material foaming layer slurry being grouped as following parts by weight: 800 parts of polyols blend, You Jijin
30 parts of metal catalyst, 90 parts of organic amine catalyst, 2000 parts and 1500 parts of isocyanates of filler.
When preparing aqueous covercoat, preferred main mixing at the aqueous polyurethane fabric slurry being grouped as by following parts by weight
It closes and prepares: 1000 parts of aqueous polyurethane emulsion, 10 parts of thickener, 15 parts of aqueous defoamer, 60 parts of aqueous color paste.
It is preferred that imitative velveteen is as base fabric.
Environment-friendly solvent-free Synthetic Leather the preparation method is as follows:
Step 1: coating surface layer: being coated with polyurethane fabric slurry in release paper, coating thickness control in 0.15mm, with
Aqueous covercoat is obtained after 100 DEG C of drying formings；
Step 2: coating adhesive layer: coating power aqueous polyurethane adhesive layer slurry on the aqueous covercoat made from step 1 applies
Cloth thickness control is in 0.15mm, to obtain aqueous adhesive layer after 100 DEG C of drying formings；
Step 3: AB material coating AB material: is coated on the aqueous adhesive layer made from step 2 using solvent-free slurry perfusion machine
Foaming layer slurry, solvent-free AB material foaming layer is made in 0.6mm, with 80 DEG C of bakings are half-dried in coating thickness control, and obtains synthetic leather
Semi-finished product；
Step 4: winding: the synthetic leather semi-finished product that step 3 obtains being bonded with base fabric and remove release paper, are then carried out
It is dried with 130 DEG C, winds and the high physical property no-solvent polyurethane synthetic leather of environmental protection is made.
Above step carries out in the producing line that flowing water linear velocity is 16 ms/min.
3 environment-friendly solvent-free Synthetic Leather of embodiment and preparation method thereof
Environment-friendly solvent-free Synthetic Leather, including base fabric, aqueous covercoat, aqueous adhesive layer and solvent-free AB material foaming
Layer: main being mixed at the aqueous polyurethane adhesive layer slurry being grouped as by following parts by weight of aqueous adhesive layer:
800 parts of aqueous polyurethane emulsion, 80 parts and 50 parts of aqueous color paste of aqueous polyurethane crosslinking agent；Solvent-free AB material foaming layer is main
By being mixed at the AB material foaming layer slurry being grouped as following parts by weight: 800 parts of polyols blend, You Jijin
30 parts of metal catalyst, 90 parts of organic amine catalyst, 2000 parts and 1500 parts of isocyanates of filler.
When preparing aqueous covercoat, preferred main mixing at the aqueous polyurethane fabric slurry being grouped as by following parts by weight
It closes and prepares: 1000 parts of aqueous polyurethane emulsion, 10 parts of thickener, 15 parts of aqueous defoamer, 60 parts of aqueous color paste.
It is preferred that imitative velveteen is as base fabric.
Environment-friendly solvent-free Synthetic Leather the preparation method is as follows:
Step 1: coating surface layer: being coated with polyurethane fabric slurry in release paper, coating thickness control in 0.15mm, with
Aqueous covercoat is obtained after 100 DEG C of drying formings；
Step 2: coating adhesive layer: coating power aqueous polyurethane adhesive layer slurry on the aqueous covercoat made from step 1 applies
Cloth thickness control is in 0.15mm, to obtain aqueous adhesive layer after 100 DEG C of drying formings；
Step 3: AB material coating AB material: is coated on the aqueous adhesive layer made from step 2 using solvent-free slurry perfusion machine
Foaming layer slurry, solvent-free AB material foaming layer is made in 0.6mm, with 150 DEG C of bakings are half-dried in coating thickness control, and is synthesized
Remove from office semi-finished product；
Step 4: maturation: the synthetic leather semi-finished product that step 3 obtains being bonded with base fabric and remove release paper, are then carried out
It is dried with 130 DEG C, curing, cooling placement is wound two days later is made environment-friendly solvent-free Synthetic Leather.
Above step carries out in the producing line that flowing water linear velocity is 16 ms/min.
It is as follows for the performance test results of embodiment 1,2 products:
Above the embodiments of the present invention are described in detail, but the present invention is not limited to described embodiments.It is right
For those skilled in the art, in the case where not departing from the principle of the invention and spirit, these embodiments are carried out more
Kind change, modification, replacement and modification, still fall in protection scope of the present invention.
Claims (9)
1. a kind of environment-friendly solvent-free Synthetic Leather, including base fabric, aqueous covercoat, aqueous adhesive layer and solvent-free AB material foaming
Layer, it is characterised in that: the aqueous adhesive layer is mainly by following parts by weight at the aqueous polyurethane adhesive layer slurry being grouped as
Material is mixed with: 800-1000 part of aqueous polyurethane emulsion, 80-100 parts of aqueous polyurethane crosslinking agent and aqueous color paste 50-
60 parts；The solvent-free AB material foaming layer mainly expects that foaming layer slurry being mixed at the AB being grouped as by following parts by weight
It forms: 800-1000 parts of polyols blend, 1-30 parts of organo-metallic catalyst, 1-90 parts of organic amine catalyst, filler 300-
2000 parts and isocyanates 500-1500 parts.
2. environment-friendly solvent-free Synthetic Leather according to claim 1, it is characterised in that: the aqueous adhesive layer is main
By being mixed at the aqueous polyurethane adhesive layer slurry being grouped as following parts by weight: aqueous polyurethane emulsion 1000
Part, 100 parts and 60 parts of aqueous color paste of aqueous polyurethane crosslinking agent.
3. environment-friendly solvent-free Synthetic Leather according to claim 1, it is characterised in that: the solvent-free AB material foaming
Layer mainly expects that foaming layer slurry being mixed at the solvent-free AB being grouped as by following parts by weight: polyols blend
800 parts, 30 parts of organo-metallic catalyst, 90 parts of organic amine catalyst, 2000 parts and 1500 parts of isocyanates of filler.
4. environment-friendly solvent-free Synthetic Leather according to claim 1, it is characterised in that: the aqueous covercoat mainly by
Following parts by weight are mixed at the aqueous polyurethane fabric slurry being grouped as: 1000 parts of aqueous polyurethane emulsion,
5-10 parts of thickener, 5-15 parts of aqueous defoamer, 50-60 parts of aqueous color paste.
5. environment-friendly solvent-free Synthetic Leather according to claim 1, it is characterised in that: the aqueous covercoat mainly by
Following parts by weight are mixed at the aqueous polyurethane fabric slurry being grouped as: 1000 parts of aqueous polyurethane emulsion,
10 parts of thickener, 15 parts of aqueous defoamer, 60 parts of aqueous color paste.
6. environment-friendly solvent-free Synthetic Leather according to claim 1, it is characterised in that: the base fabric be imitative velveteen,
The one of which of pure cotton cloth, polyester-mixed cotton cloth or flannelette.
7. environment-friendly solvent-free Synthetic Leather according to claim 1, it is characterised in that: the base fabric is imitative velveteen.
8. a kind of preparation method of the environment-friendly solvent-free Synthetic Leather as described in claim any one of 1-7, feature
It is: the following steps are included:
Step 1: polyurethane fabric slurry described in claim 1,4 or 5, coating thickness coating surface layer: are coated in release paper
Control is in 0.1-0.2mm, to obtain aqueous covercoat after 95-110 DEG C of drying forming；
Step 2: aqueous polyurethane of any of claims 1 or 2 coating adhesive layer: is coated on the aqueous covercoat made from step 1
Adhesive layer slurry, coating thickness are controlled in 0.1-0.2mm, to obtain aqueous adhesive layer after 95-110 DEG C of drying forming；
Step 3: coating AB material: being coated with AB described in claim 1 or 3 on the aqueous adhesive layer made from step 2 and expect foaming layer
Slurry, solvent-free AB material foaming layer is made in 0.5-0.8mm, with 80-150 DEG C of baking is half-dried in coating thickness control, and is synthesized
Remove from office semi-finished product；
Step 4: maturation: the synthetic leather semi-finished product that step 3 obtains being bonded with base fabric and remove release paper, then carry out with
Environment-friendly solvent-free Synthetic Leather is made in 120-140 DEG C of drying, curing, rolling after cooling.
9. the preparation method of environment-friendly solvent-free Synthetic Leather according to claim 8, it is characterised in that: including following
Step:
Step 1: polyurethane fabric slurry described in claim 1,4 or 5, coating thickness coating surface layer: are coated in release paper
Control is in 0.15mm, to obtain aqueous covercoat after 100 DEG C of drying formings；
Step 2: aqueous polyurethane of any of claims 1 or 2 coating adhesive layer: is coated on the aqueous covercoat made from step 1
Adhesive layer slurry, coating thickness are controlled in 0.15mm, to obtain aqueous adhesive layer after 100 DEG C of drying formings；
Step 3: coating AB material: being coated with AB described in claim 1 or 3 on the aqueous adhesive layer made from step 2 and expect foaming layer
Slurry, coating thickness control in 0.6mm, with 130 DEG C dry it is half-dried solvent-free AB material foaming layer is made, and obtain synthetic leather half at
Product；
Step 4: maturation: the synthetic leather semi-finished product that step 3 obtains being bonded with base fabric and remove release paper, then carry out with
Environment-friendly solvent-free Synthetic Leather is made in 130 DEG C of drying, curing, rolling after cooling.
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| CN110093786A (en) * | 2019-05-13 | 2019-08-06 | 浙江禾欣新材料有限公司 | A kind of shoes aqueous, environmental protective leather and preparation method thereof |
| CN110541312A (en) * | 2019-08-26 | 2019-12-06 | 安徽安利材料科技股份有限公司 | Skin-friendly environment-friendly polyurethane synthetic leather for earphone sleeves and preparation method thereof |
| CN111041843A (en) * | 2019-12-19 | 2020-04-21 | 福建成杰高分子材料有限公司 | Synthetic leather environment-friendly solvent-free polyurethane and manufacturing method thereof |
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| CN112342798A (en) * | 2020-11-27 | 2021-02-09 | 苏州瑞高新材料有限公司 | Preparation method of water-based PU/solvent-free PU/TPU synthetic leather |
| CN112593418A (en) * | 2020-12-07 | 2021-04-02 | 安徽安利材料科技股份有限公司 | Ultra-thick composite-free polyurethane synthetic leather and preparation method thereof |
| CN112593418B (en) * | 2020-12-07 | 2024-01-12 | 安徽安利材料科技股份有限公司 | Ultra-thick composite-free polyurethane synthetic leather and preparation method thereof |
| CN113789671A (en) * | 2021-09-22 | 2021-12-14 | 安徽安利材料科技股份有限公司 | Halogen-free flame-retardant polyurethane synthetic leather and preparation method and application thereof |
| CN113789671B (en) * | 2021-09-22 | 2024-02-20 | 安徽安利材料科技股份有限公司 | Halogen-free flame-retardant polyurethane synthetic leather and preparation method and application thereof |
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