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Aqueous decoration leather

A decorative leather, water-based technology, applied in the field of leather, can solve safety accidents, endanger user safety, harmfulness and other problems, achieve the effect of increasing vehicle speed, increasing production and reducing costs

Active Publication Date: 2014-02-05
ZHEJIANG WUZHOU IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solvent-based polyurethane resin refers to a polymer resin dissolved in an organic solvent, but the solvent of the solvent-based resin pollutes the environment; most of the organic solvents are flammable and explosive chemicals, causing safety accidents; organic solvents are toxic and harmful, affecting construction The health of personnel, solvent residues endanger the safety of users; very few decorative leather products made of water-based resins do not use the two-step manufacturing process of wet bass and dry transfer film, so the speed is slow, resulting in high cost and low output

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Water-based upholstery leather is produced using a process involving the following steps:

[0029] 1) Water-based wet process: iron the base fabric, directly apply water-based polyurethane foam slurry, dry, roll up, and semi-finished Bess inspection; water-based polyurethane foam slurry is made of the following raw materials in parts by weight: water-based polyurethane 100 parts of resin; 2 parts of foaming agent; 2 parts of foam stabilizer; 4 parts of curing agent; The color paste adopts the water-based pigment paste of the polyurethane system, and the foaming agent is a stearic acid amine water-soluble foaming agent. The vehicle speed is 10m / min; the gap for coating the foaming slurry is 0.5mm; the oven is 20 meters; the oven temperature is 70°C.

[0030] 2) Water-based dry process: directly coat the polyurethane surface layer slurry on the release paper, dry, fit the semi-finished bass, dry, wind up, and inspect the finished product. The polyurethane surface layer ...

Embodiment 2

[0032] Water-based upholstery leather is produced using a process involving the following steps:

[0033] 1) Water-based wet process: iron the base fabric, directly apply water-based polyurethane foam slurry, dry, roll up, and semi-finished Bess inspection; water-based polyurethane foam slurry is made of the following raw materials in parts by weight: water-based polyurethane 100 parts of resin; 3 parts of foaming agent; 3 parts of foam stabilizer; 3 parts of curing agent; The color paste adopts the water-based pigment paste of the polyurethane system, and the foaming agent is a stearic acid amine water-soluble foaming agent. The vehicle speed is 15m / min; the gap for coating the foaming slurry is 1mm; the oven is 30 meters; the oven temperature is 100°C.

[0034] 2) Water-based dry process: directly coat the polyurethane surface layer slurry on the release paper, dry, fit the semi-finished bass, dry, wind up, and inspect the finished product. The polyurethane surface layer s...

Embodiment 3

[0036] Water-based upholstery leather is produced using a process involving the following steps:

[0037]1) Water-based wet process: iron the base fabric, directly apply water-based polyurethane foam slurry, dry, roll up, and semi-finished Bess inspection; water-based polyurethane foam slurry is made of the following raw materials in parts by weight: water-based polyurethane 100 parts of resin; 5 parts of foaming agent; 5 parts of foam stabilizer; 2 parts of curing agent; The color paste adopts the water-based pigment paste of the polyurethane system, and the foaming agent is a stearic acid amine water-soluble foaming agent. The vehicle speed is 20m / min; the gap for coating the foaming slurry is 1.5mm; the oven is 50 meters; the oven temperature is 120°C.

[0038] 2) Water-based dry process: directly coat the polyurethane surface layer slurry on the release paper, dry, fit the semi-finished bass, dry, wind up, and inspect the finished product. The polyurethane surface layer ...

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Abstract

The invention provides an aqueous decoration leather. A method for preparing the aqueous decoration leather comprises the following steps: 1, an aqueous wet process: pressing a base cloth, directly coating an aqueous polyurethane foam slurry, drying, reeling, and carrying out semi-finished product bass examination; and 2, an aqueous dry process: directly coating a polyurethane surface layer slurry on a release paper, drying, applying with a semi-finished product bass, drying, reeling, and carrying out finished product examination. The method substantially improves the workshop speed, reduces the cost and increases the output by utilizing the combination of the wet method bass and the dry method coating transfer process. The aqueous decoration leather has the advantages of flame retardation, yellowing resistance, hydrolysis resistance, mildew resistance, water resistance, and zero content of harmful substances comprising DMF, formaldehyde, o-benzene compounds and the like.

Description

technical field [0001] The invention belongs to the field of leather, in particular to a water-based decorative leather. Background technique [0002] At present, after years of development, polyurethane synthetic leather has been widely used in home furnishing, sofas, car interiors, bags, etc. , Office supplies, etc. [0003] Most of the existing decorative leather patents are solvent-based polyurethane resins. Solvent-based polyurethane resin refers to a polymer resin dissolved in an organic solvent, but the solvent of the solvent-based resin pollutes the environment; most of the organic solvents are flammable and explosive chemicals, causing safety accidents; organic solvents are toxic and harmful, affecting construction The health of personnel, and solvent residues endanger the safety of users; very few decorative leather products made of water-based resins do not use the two-step manufacturing process of wet bass and dry transfer film, so the speed is slow, resulting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14B32B27/08B32B37/02B32B37/26B32B38/16
Inventor 张才许刚张德敏梁杰
Owner ZHEJIANG WUZHOU IND
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