CN110552210A - Low-odor low-temperature-resistant synthetic rubber leather and preparation method thereof - Google Patents
Low-odor low-temperature-resistant synthetic rubber leather and preparation method thereof Download PDFInfo
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- CN110552210A CN110552210A CN201910895415.2A CN201910895415A CN110552210A CN 110552210 A CN110552210 A CN 110552210A CN 201910895415 A CN201910895415 A CN 201910895415A CN 110552210 A CN110552210 A CN 110552210A
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- 229920003051 synthetic elastomer Polymers 0.000 title claims abstract description 84
- 239000005061 synthetic rubber Substances 0.000 title claims abstract description 84
- 239000010985 leather Substances 0.000 title claims abstract description 62
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000010410 layer Substances 0.000 claims abstract description 50
- 239000004831 Hot glue Substances 0.000 claims abstract description 31
- 239000004744 fabric Substances 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 18
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 14
- 239000002344 surface layer Substances 0.000 claims abstract description 8
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 7
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 7
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 7
- 239000004611 light stabiliser Substances 0.000 claims abstract description 7
- 239000012790 adhesive layer Substances 0.000 claims abstract description 5
- 238000013329 compounding Methods 0.000 claims abstract description 4
- 239000002131 composite material Substances 0.000 claims description 12
- 238000010030 laminating Methods 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 239000000693 micelle Substances 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 238000003490 calendering Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000012224 working solution Substances 0.000 claims description 3
- 239000002649 leather substitute Substances 0.000 abstract description 17
- 239000004814 polyurethane Substances 0.000 abstract description 16
- 229920000915 polyvinyl chloride Polymers 0.000 abstract description 9
- 239000004800 polyvinyl chloride Substances 0.000 abstract description 9
- 230000007613 environmental effect Effects 0.000 abstract description 8
- 230000000704 physical effect Effects 0.000 abstract description 5
- 229920002635 polyurethane Polymers 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract 1
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 39
- 239000012855 volatile organic compound Substances 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000012752 auxiliary agent Substances 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000005060 rubber Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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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
- D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
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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
- 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
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/04—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 by reactions only involving carbon-to-carbon unsaturated bonds
- D06N3/045—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 by reactions only involving carbon-to-carbon unsaturated bonds with polyolefin or polystyrene (co-)polymers
-
- 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
- D06N3/04—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 by reactions only involving carbon-to-carbon unsaturated bonds
- D06N3/10—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 by reactions only involving carbon-to-carbon unsaturated bonds with styrene-butadiene copolymerisation products or other synthetic rubbers or elastomers except polyurethanes
- D06N3/106—Elastomers
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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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- 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
- D06N3/18—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials
- D06N3/183—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials the layers are one next to the other
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/12—Permeability or impermeability properties
- D06N2209/121—Permeability to gases, adsorption
- D06N2209/123—Breathable
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- D06N2209/00—Properties of the materials
- D06N2209/14—Properties of the materials having chemical properties
- D06N2209/141—Hydrophilic
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1664—Releasability
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1685—Wear resistance
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1692—Weather resistance
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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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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
the invention discloses low-odor low-temperature-resistant synthetic rubber leather which comprises a base cloth layer, a hot-melt adhesive layer, a synthetic rubber layer and a surface layer which are sequentially laminated; the hot melt adhesive layer is an EVA hot melt adhesive layer or an SIS adhesive layer. The preparation raw materials of the synthetic rubber layer comprise the following raw material components in parts by weight: 70-90 parts of synthetic rubber; 10-30 parts of calcium carbonate; 0.02-0.06 part of light stabilizer; 0.02-0.06 part of antioxidant; 2-6 parts of a cross-linking agent. The preparation method of the synthetic rubber leather comprises the following steps: (1) preparing base fabric rubberizing; (2) compounding the synthetic rubber layer; (3) treating a PU film; (4) and (5) processing by a grain absorbing machine. The synthetic rubber leather has physical properties comparable to those of polyvinyl chloride synthetic leather, hand feeling comparable to those of polyurethane synthetic leather, low-temperature bending resistance, zero VOC, zero DMF and environmental protection.
Description
Technical Field
The invention relates to artificial leather, in particular to low-odor low-temperature-resistant synthetic rubber leather and a preparation method thereof.
Background
with the rapid development of economy in China, the demand of leather products is increased rapidly, and the grade required by customers is higher and higher. Leather has been widely used in various lives of people. The leather is best selected as genuine leather, but the genuine leather seriously pollutes the environment in the production process, and the yield is low in the leather processing process, the price is high, and the middle-grade and low-grade leather products are difficult to accept. Today advocating energy conservation, environmental protection and sustainable development, people develop imitation leather fabrics to replace animal leather, thereby avoiding the damage to animals and reducing the damage to the environment.
the artificial synthetic leather is commonly called as imitation leather, is a general name of synthetic materials such as PVC, PU and the like, is manufactured by attaching PU or PVC materials with different formula proportions on the basis of textile cloth, can be processed according to different requirements, and has the characteristics of various varieties, high utilization rate and lower single price than real leather. At present, the external leather of the artificial leather mainly adopts materials such as polyvinyl chloride, polyurethane and the like. The common polyvinyl chloride synthetic leather has hard hand feeling and large smell, and cannot avoid the problems of Volatile Organic Compounds (VOCS) and the like due to the separation of a plasticizer, while the polyurethane synthetic leather has complex production process, wear resistance and hydrolysis resistance and the production process and finished products contain harmful substances of dimethyl formamide (DMF), so the environment-friendly performance is not enough. Therefore, there is a need to develop a synthetic rubber leather which has physical properties comparable to those of polyvinyl chloride synthetic leather, hand feeling comparable to those of polyurethane synthetic leather, low temperature flexing resistance (no damage to leather after flexing 5 ten thousand times at-40 ℃), zero VOC, zero DMF and environmental protection.
Disclosure of Invention
The invention aims to solve the defects and provides low-odor low-temperature-resistant synthetic rubber leather and a preparation method thereof.
The above object of the present invention is achieved by the following technical means: a low-odor low-temperature-resistant synthetic rubber leather comprises a base cloth layer, a hot-melt adhesive layer, a synthetic rubber layer and a surface layer which are sequentially laminated; the hot melt adhesive layer is an EVA hot melt adhesive layer or an SIS adhesive layer.
The low-odor low-temperature-resistant synthetic rubber leather provided by the invention has the advantages that the bonding strength of the hot melt adhesive bonding layer is high, the bonding firmness of the synthetic rubber leather is improved, the mechanical physical properties of the synthetic leather are improved by the base cloth layer and the surface layer, PVC artificial leather can be replaced on the mechanical properties, and PU artificial leather and real leather can be replaced by skin feeling of the surface layer. Moreover, the synthetic rubber raw material, the hot melt adhesive film and the auxiliary agent do not contain harmful substances such as Volatile Organic Compounds (VOCS), dimethyl formamide (DMF) and the like, and accord with laws and regulations such as Reach, Rohs and the like, so the method has the environmental protection requirements of production process and finished products that the synthetic rubber raw material, the hot melt adhesive film and the auxiliary agent do not contain Volatile Organic Compounds (VOCS), dimethyl formamide and the like. The invention obtains low-temperature performance stability by arranging the hot-melt adhesive layer to match with the base cloth layer and the synthetic rubber layer, for example, the low-temperature performance stability can not be changed at the low temperature of 40 ℃ below zero, and the low-temperature performance stability rubber has excellent performances of low odor, wear resistance, low temperature resistance, flexing resistance, good flexibility and the like, and simultaneously has the production process and the environmental protection requirements of a finished product of the rubber without volatile organic compounds, dimethyl formamide and the like.
Further, the preparation raw materials of the synthetic rubber layer comprise the following raw material components in parts by weight: 70-90 parts of synthetic rubber; 10-30 parts of calcium carbonate; 0.02-0.06 part of light stabilizer; 0.02-0.06 part of antioxidant; 2-6 parts of a cross-linking agent.
Preferably, the synthetic rubber may be 70 parts, 75 parts, 80 parts, 85 parts, 90 parts, etc.
Preferably, the calcium carbonate may be 30 parts, 25 parts, 20 parts, 15 parts, 10 parts, etc.
Preferably, the light stabilizer may be 0.02 parts, 0.03 parts, 0.04 parts, 0.05 parts, 0.06 parts, etc.
Preferably, the antioxidant may be 0.02 parts, 0.03 parts, 0.04 parts, 0.05 parts, 0.06 parts, etc.
Preferably, the crosslinking agent may be 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, and the like.
the invention discloses a preparation method of low-odor low-temperature-resistant synthetic rubber leather, which comprises the following steps of:
(1) base fabric rubberizing preparation: laminating by using a hot melt adhesive film, heating the base fabric by a hot laminating machine according to the temperature of 120-150 ℃ to reach the laminating temperature condition of the hot melt adhesive film, and laminating the hot melt adhesive film and the base fabric to form a first composite film;
(2) Compounding a synthetic rubber layer: mixing preparation raw materials according to a preparation raw material formula of the synthetic rubber layer, stirring by a calender with ten thousand horsepower to obtain a synthetic rubber micelle, and calendering the synthetic rubber micelle by a four-roll calender at the temperature of 130-180 ℃ to obtain the synthetic rubber layer; the synthetic rubber layer and the first composite film are compounded in a pressing mode to form a second composite film;
(3) PU film treatment: adding PU resin to a coating machine, uniformly coating the PU resin working solution on the surface of the synthetic rubber membrane layer of the second composite membrane, drying by a tunnel type hot air dryer at 90-120 ℃ (such as 90 ℃, 92 ℃, 95 ℃, 98 ℃, 100 ℃, 105 ℃, 110 ℃, 115 ℃ or 120 ℃ and the like), and coiling for later use to obtain the synthetic rubber leather;
(4) And (3) processing by a grain absorbing machine: unreeling the synthetic rubber leather, heating the surface of the synthetic rubber leather, sucking the grains through a grain sucking roller, cooling and rolling to obtain the leather grain synthetic rubber.
Compared with the prior art, the invention has the advantages that:
(1) because the EVA hot melt adhesive film and the SIS adhesive are adopted, the bonding strength is greatly improved and can reach 6kg/30mm at most.
(2) the synthetic physical property is excellent, the hand feeling of the formed product is dry and comfortable, the texture of the leather is clear, the moisture absorption and the air permeability are not inferior to the hand feeling of the leather, and the synthetic leather can completely replace PVC, PU artificial leather and leather.
(3) The leather has the characteristics of no quality change under the condition of low temperature of 40 ℃ below zero, wear resistance (under the pressure of 1kg, the wear phenomenon is not obvious after the leather is ground for 1000 turns), and low temperature flexing resistance (the leather has no damage sign after flexing for 5 ten thousand times at the temperature of 40 ℃ below zero).
(4) The synthetic rubber leather adopts a calendering process, so that the bonding strength of the base cloth and the rubber is improved, and on the other hand, the hot melt adhesive film can be used for preventing air pollution caused by coating an adhesive layer in the prior art.
(5) the synthetic rubber leather is mainly made of synthetic rubber, the auxiliary agent and the matched material of the synthetic rubber leather are environment-friendly materials, harmful substances such as Volatile Organic Compounds (VOCS), dimethyl formamide (DMF), heavy metals and the like are not contained, the synthetic rubber leather conforms to laws and regulations such as Reach, Rohs and the like, and the leather manufacturing process and the finished product conform to environmental protection.
drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a low-odor low-temperature-resistant synthetic rubber leather comprises a base fabric layer 1, a hot melt adhesive layer 2, a synthetic rubber layer 3 and a surface layer 4 which are sequentially laminated; the hot melt adhesive layer 2 is an EVA hot melt adhesive layer or an SIS adhesive layer.
The low-odor low-temperature-resistant synthetic rubber leather provided by the invention has the advantages that the bonding strength of the hot melt adhesive bonding layer is high, the bonding firmness of the synthetic rubber leather is improved, the mechanical physical properties of the synthetic leather are improved by the base cloth layer and the surface layer, PVC artificial leather can be replaced on the mechanical properties, and PU artificial leather and real leather can be replaced by skin feeling of the surface layer. Moreover, the synthetic rubber raw material, the hot melt adhesive film and the auxiliary agent do not contain harmful substances such as Volatile Organic Compounds (VOCS), dimethyl formamide (DMF) and the like, and accord with laws and regulations such as Reach, Rohs and the like, so the method has the environmental protection requirements of production process and finished products that the synthetic rubber raw material, the hot melt adhesive film and the auxiliary agent do not contain Volatile Organic Compounds (VOCS), dimethyl formamide and the like. The invention obtains low-temperature performance stability by arranging the hot-melt adhesive layer to match with the base cloth layer and the synthetic rubber layer, for example, the low-temperature performance stability can not be changed at the low temperature of 40 ℃ below zero, and the low-temperature performance stability rubber has excellent performances of low odor, wear resistance, low temperature resistance, flexing resistance, good flexibility and the like, and simultaneously has the production process and the environmental protection requirements of a finished product of the rubber without volatile organic compounds, dimethyl formamide and the like.
Further, the preparation raw materials of the synthetic rubber layer comprise the following raw material components in parts by weight: 70-90 parts of synthetic rubber; 10-30 parts of calcium carbonate; 0.02-0.06 part of light stabilizer; 0.02-0.06 part of antioxidant; 2-6 parts of a cross-linking agent.
Preferably, the synthetic rubber may be 70 parts, 75 parts, 80 parts, 85 parts, 90 parts, etc.
Preferably, the calcium carbonate may be 30 parts, 25 parts, 20 parts, 15 parts, 10 parts, etc.
Preferably, the light stabilizer may be 0.02 parts, 0.03 parts, 0.04 parts, 0.05 parts, 0.06 parts, etc.
Preferably, the antioxidant may be 0.02 parts, 0.03 parts, 0.04 parts, 0.05 parts, 0.06 parts, etc.
Preferably, the crosslinking agent may be 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, and the like.
The invention discloses a preparation method of low-odor low-temperature-resistant synthetic rubber leather, which comprises the following steps of:
(1) Base fabric rubberizing preparation: laminating by using a hot melt adhesive film, heating the base fabric by a hot laminating machine according to the temperature of 120-150 ℃ to reach the laminating temperature condition of the hot melt adhesive film, and laminating the hot melt adhesive film and the base fabric to form a first composite film;
(2) Compounding a synthetic rubber layer: mixing preparation raw materials according to a preparation raw material formula of the synthetic rubber layer, stirring by a calender with ten thousand horsepower to obtain a synthetic rubber micelle, and calendering the synthetic rubber micelle by a four-roll calender at the temperature of 130-180 ℃ to obtain the synthetic rubber layer; the synthetic rubber layer and the first composite film are compounded in a pressing mode to form a second composite film;
(3) PU film treatment: adding PU resin to a coating machine, uniformly coating the PU resin working solution on the surface of the synthetic rubber membrane layer of the second composite membrane, drying by a tunnel type hot air dryer at 90-120 ℃ (such as 90 ℃, 92 ℃, 95 ℃, 98 ℃, 100 ℃, 105 ℃, 110 ℃, 115 ℃ or 120 ℃ and the like), and coiling for later use to obtain the synthetic rubber leather;
(4) And (3) processing by a grain absorbing machine: unreeling the synthetic rubber leather, heating the surface of the synthetic rubber leather, sucking the grains through a grain sucking roller, cooling and rolling to obtain the leather grain synthetic rubber.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. a low-odor low-temperature-resistant synthetic rubber leather is characterized in that: comprises a base cloth layer, a hot melt adhesive layer, a synthetic rubber layer and a surface layer which are sequentially laminated; the hot melt adhesive layer is an EVA hot melt adhesive layer or an SIS adhesive layer.
2. The low-odor low-temperature-resistant synthetic rubber leather according to claim 1, wherein: the preparation raw materials of the synthetic rubber layer comprise the following raw material components in parts by weight: 70-90 parts of synthetic rubber; 10-30 parts of calcium carbonate; 0.02-0.06 part of light stabilizer; 0.02-0.06 part of antioxidant; 2-6 parts of a cross-linking agent.
3. The low-odor low-temperature-resistant synthetic rubber leather according to claim 2, wherein: the synthetic rubber is 70 parts, 75 parts, 80 parts, 85 parts and 90 parts.
4. The low-odor low-temperature-resistant synthetic rubber leather according to claim 2, wherein: the calcium carbonate is 30 parts, 25 parts, 20 parts, 15 parts and 10 parts.
5. The low-odor low-temperature-resistant synthetic rubber leather according to claim 2, wherein: the light stabilizer is 0.02 part, 0.03 part, 0.04 part, 0.05 part and 0.06 part.
6. The low-odor low-temperature-resistant synthetic rubber leather according to claim 2, wherein: the antioxidant is 0.02 part, 0.03 part, 0.04 part, 0.05 part or 0.06 part.
7. The low-odor low-temperature-resistant synthetic rubber leather according to claim 2, wherein: the cross-linking agent is 2 parts, 3 parts, 4 parts, 5 parts or 6 parts.
8. A preparation method of low-odor low-temperature-resistant synthetic rubber leather comprises the following steps:
(1) Base fabric rubberizing preparation: laminating by using a hot melt adhesive film, heating the base fabric by a hot laminating machine according to the temperature of 120-150 ℃ to reach the laminating temperature condition of the hot melt adhesive film, and laminating the hot melt adhesive film and the base fabric to form a first composite film;
(2) Compounding a synthetic rubber layer: mixing preparation raw materials according to a preparation raw material formula of the synthetic rubber layer, stirring by a calender with ten thousand horsepower to obtain a synthetic rubber micelle, and calendering the synthetic rubber micelle by a four-roll calender at the temperature of 130-180 ℃ to obtain the synthetic rubber layer; the synthetic rubber layer and the first composite film are compounded in a pressing mode to form a second composite film;
(3) PU film treatment: adding PU resin on a coating machine, uniformly coating the PU resin working solution on the surface of the synthetic rubber membrane layer of the second composite membrane, drying by a tunnel type hot air dryer at the temperature of 90-120 ℃, and coiling for later use to obtain synthetic rubber leather;
(4) And (3) processing by a grain absorbing machine: unreeling the synthetic rubber leather, heating the surface of the synthetic rubber leather, sucking the grains through a grain sucking roller, cooling and rolling to obtain the leather grain synthetic rubber.
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| CN108842474A (en) * | 2018-07-18 | 2018-11-20 | 苏州瑞高新材料有限公司 | A kind of PU-PP composite leather and preparation method thereof |
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| CN211112887U (en) * | 2019-09-21 | 2020-07-28 | 广东大丰新材料有限公司 | Low-odor low-temperature-resistant synthetic rubber leather |
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| CN106835732A (en) * | 2017-02-21 | 2017-06-13 | 东莞市雄林新材料科技股份有限公司 | A kind of vehicle slit preventing PUR TPU leathers and preparation method thereof |
| CN108842474A (en) * | 2018-07-18 | 2018-11-20 | 苏州瑞高新材料有限公司 | A kind of PU-PP composite leather and preparation method thereof |
| CN109109419A (en) * | 2018-07-18 | 2019-01-01 | 苏州瑞高新材料有限公司 | A kind of high compactness PU leather and preparation method thereof |
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