Environment-friendly slow-rebound polyurethane synthetic leather for sofa furniture and preparation method of environment-friendly slow-rebound polyurethane synthetic leather

Abstract

The invention discloses environment-friendly slow-rebound polyurethane synthetic leather for sofa furniture and a preparation method of the environment-friendly slow-rebound polyurethane synthetic leather. The environment-friendly slow-rebound polyurethane synthetic leather sequentially comprises a surface layer, a middle layer, a solvent-free foaming layer and base cloth from top to bottom. The solvent-free foaming bonding layer comprises a component A and a component B, wherein the molar ratio of -NCO in the component B to -OH in the component A is 0.90-0.96; the component A comprises the following raw materials: polyether polycarbonate copolymerization type dihydric alcohol, polyether triols, an inhibition type catalyst, monohydroxyl silicone oil, double hydroxyl-terminated silicone oil, a viscosity regulator, a light / heat stabilizer and a filler; and the main raw material of the component B is isocyanate. The prepared polyurethane synthetic leather has excellent environmental protection performance, good durability, soft hand feeling, strong skin-friendly feeling and extremely excellent hydrolysis resistance; and the production process is simple, efficient, green and environmentally friendly, and can meet market requirements of the environment-friendly sofa leather.

Description

technical field

[0001] The invention relates to a polyurethane synthetic leather, in particular to an environment-friendly polyurethane synthetic leather for slow rebound sofa furniture and a preparation method thereof. Background technique

[0002] With the continuous improvement of global consumers' requirements for health, ecology, green and environmental protection, and the European Union, the United States, Japan and South Korea and other developed countries and regions have increasingly stringent requirements for the ecological and environmental performance of synthetic leather, the production of ecological and environmentally friendly polyurethane synthetic leather has become an important trend. Future trends.

[0003] Most of the traditional polyurethane synthetic leathers use solvent-based polyurethane resins as raw materials, which will generate a large amount of waste liquid and gas during the manufacturing process, which not only damages the physical and mental h...

Examples

Embodiment 1

[0059] First, add 0.5 part of Silok 8030F, 0.6 part of SY-3520, 0.5 part of Silok 50, 0.5 part of 2794, 0.5 part of HYC-100, 0.1 part of BF-2010, 2 parts of RU-911, 1 part of U-605 into 50 parts of Leasys 3250 and 50 parts of PU-209-7 mixed with water-based resin, then add 8 parts of water-based pigment color paste to fully stir and mix evenly, then vacuumize, and then evenly apply and scrape on the front of the release paper as the surface layer, the surface layer slurry The coating thickness of the layer is 0.1mm; then add 0.3 parts of Silok 8030F, 0.4 parts of SY-3520, 0.3 parts of 2794, 0.5 parts of HYC-100, 0.1 parts of BF-2010, 1 part of U-605 into 50 parts of Tekspros 5215 and 50 10 parts of JF-PDY-847HY mixed with water-based resin, then add 10 parts of pigment color paste to fully stir and mix evenly, then vacuumize, and then evenly smear and scrape on the surface layer to prepare the middle layer. The thickness of the middle layer slurry layer is 0.13 mm; drying at a...

Embodiment 2

[0064] First, add 1.0 part of Silok 8030F, 1 part of SY-3520, 0.8 part of Silok 50, 1.0 part of 2794, 0.5 part of HYC-100, 0.1 part of BF-2010, 5 parts of RU-911, 1.2 part of U-605 into 60 parts of Leasys 3250 and 40 parts of PU-209-7 mixed with water-based resin, then add 10 parts of water-based pigment color paste to fully stir and mix evenly, then vacuumize, and then evenly apply and scrape on the front of the release paper as the surface layer, the surface layer slurry The coating thickness of the layer is 0.13mm; then add 0.5 parts of Silok 8030F, 1 part of SY-3520, 0.5 parts of 2794, 0.8 parts of HYC-100, 0.15 parts of BF-2010, 0.8 parts of U-605 into 50 parts of Tekspros 5215 and 50 parts 10 parts of JF-PDY-847HY mixed with water-based resin, then add 10 parts of pigment color paste to fully stir and mix evenly, then vacuumize, and then evenly smear and scrape on the surface layer to prepare the middle layer. The thickness of the middle layer slurry layer is 0.15 mm; dr...

Embodiment 3

[0069] First, add 1.5 parts of Silok 8030F, 2 parts of SY-3520, 1.2 parts of Silok 50, 1.0 part of 2794, 1.0 part of HYC-100, 0.15 part of BF-2010, 6 parts of RU-911, 1 part of U-605 into 60 parts of Leasys 3250 and 40 parts of PU-209-7 mixed with water-based resin, then add 8 parts of water-based pigment color paste to fully stir and mix evenly, then vacuumize, and then evenly apply and scrape on the front of the release paper as the surface layer, the surface layer slurry The coating thickness of the layer is 0.15mm; then add 0.8 parts of Silok 8030F, 1.5 parts of SY-3520, 1.0 parts of 2794, 0.5 parts of HYC-100, 0.12 parts of BF-2010, 1.2 parts of U-605 to 40 parts of Tekspros 5215 and 60 10 parts of JF-PDY-847HY mixed with water-based resin, then add 10 parts of pigment color paste to fully stir and mix evenly, then vacuumize, and then evenly squeegee on the surface layer to prepare the middle layer. The thickness of the middle layer slurry layer is 0.15 mm; drying at a te...

technical field

[0001] The invention relates to a polyurethane synthetic leather, in particular to an environment-friendly polyurethane synthetic leather for slow rebound sofa furniture and a preparation method thereof. Background technique

[0002] With the continuous improvement of global consumers' requirements for health, ecology, green and environmental protection, and the European Union, the United States, Japan and South Korea and other developed countries and regions have increasingly stringent requirements for the ecological and environmental performance of synthetic leather, the production of ecological and environmentally friendly polyurethane synthetic leather has become an important trend. Future trends.

[0003] Most of the traditional polyurethane synthetic leathers use solvent-based polyurethane resins as raw materials, which will generate a large amount of waste liquid and gas during the manufacturing process, which not only damages the physical and mental h...

Examples

Embodiment 1

[0059] First, add 0.5 part of Silok 8030F, 0.6 part of SY-3520, 0.5 part of Silok 50, 0.5 part of 2794, 0.5 part of HYC-100, 0.1 part of BF-2010, 2 parts of RU-911, 1 part of U-605 into 50 parts of Leasys 3250 and 50 parts of PU-209-7 mixed with water-based resin, then add 8 parts of water-based pigment color paste to fully stir and mix evenly, then vacuumize, and then evenly apply and scrape on the front of the release paper as the surface layer, the surface layer slurry The coating thickness of the layer is 0.1mm; then add 0.3 parts of Silok 8030F, 0.4 parts of SY-3520, 0.3 parts of 2794, 0.5 parts of HYC-100, 0.1 parts of BF-2010, 1 part of U-605 into 50 parts of Tekspros 5215 and 50 10 parts of JF-PDY-847HY mixed with water-based resin, then add 10 parts of pigment color paste to fully stir and mix evenly, then vacuumize, and then evenly smear and scrape on the surface layer to prepare the middle layer. The thickness of the middle layer slurry layer is 0.13 mm; drying at a...

Embodiment 2

[0064] First, add 1.0 part of Silok 8030F, 1 part of SY-3520, 0.8 part of Silok 50, 1.0 part of 2794, 0.5 part of HYC-100, 0.1 part of BF-2010, 5 parts of RU-911, 1.2 part of U-605 into 60 parts of Leasys 3250 and 40 parts of PU-209-7 mixed with water-based resin, then add 10 parts of water-based pigment color paste to fully stir and mix evenly, then vacuumize, and then evenly apply and scrape on the front of the release paper as the surface layer, the surface layer slurry The coating thickness of the layer is 0.13mm; then add 0.5 parts of Silok 8030F, 1 part of SY-3520, 0.5 parts of 2794, 0.8 parts of HYC-100, 0.15 parts of BF-2010, 0.8 parts of U-605 into 50 parts of Tekspros 5215 and 50 parts 10 parts of JF-PDY-847HY mixed with water-based resin, then add 10 parts of pigment color paste to fully stir and mix evenly, then vacuumize, and then evenly smear and scrape on the surface layer to prepare the middle layer. The thickness of the middle layer slurry layer is 0.15 mm; dr...

Embodiment 3

[0069] First, add 1.5 parts of Silok 8030F, 2 parts of SY-3520, 1.2 parts of Silok 50, 1.0 part of 2794, 1.0 part of HYC-100, 0.15 part of BF-2010, 6 parts of RU-911, 1 part of U-605 into 60 parts of Leasys 3250 and 40 parts of PU-209-7 mixed with water-based resin, then add 8 parts of water-based pigment color paste to fully stir and mix evenly, then vacuumize, and then evenly apply and scrape on the front of the release paper as the surface layer, the surface layer slurry The coating thickness of the layer is 0.15mm; then add 0.8 parts of Silok 8030F, 1.5 parts of SY-3520, 1.0 parts of 2794, 0.5 parts of HYC-100, 0.12 parts of BF-2010, 1.2 parts of U-605 to 40 parts of Tekspros 5215 and 60 10 parts of JF-PDY-847HY mixed with water-based resin, then add 10 parts of pigment color paste to fully stir and mix evenly, then vacuumize, and then evenly squeegee on the surface layer to prepare the middle layer. The thickness of the middle layer slurry layer is 0.15 mm; drying at a te...

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