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A highly elastic and environmentally friendly synthetic leather

An environmentally friendly, synthetic leather technology, applied in the field of synthetic leather, can solve the problems of not being able to meet the customer's product thickness requirements, product thinning, etc.

Active Publication Date: 2019-10-08
福建展宏人造革有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After the subsequent embossing process or vacuum suction process, the product will become thinner, which often cannot meet the customer's requirements for product thickness.

Method used

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  • A highly elastic and environmentally friendly synthetic leather
  • A highly elastic and environmentally friendly synthetic leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of preparation method of environment-friendly synthetic leather of high elasticity:

[0028] (1) Take water-based acrylate resin and distilled water according to the mass ratio of 1:2, apply it on the release paper, and bake it at 120°C for 2 minutes to obtain the surface layer-release paper;

[0029] (2) Take 28 parts of water-based polyurethane and 38 parts of water according to the formula components of the adhesive layer, and then add 0.7 parts of nano-SiO 2 Particles, 5 parts of vitrified microspheres, 5 parts of oleic acid acyl, 0.4 part of silicone defoamer and 0.5 part of polyoxyethylene fatty amine to obtain the adhesive layer slurry; coating on the surface layer in step (1) For the adhesive layer slurry, the weft-knitted elastic knitted fabric is floated on the surface layer-release paper with floating rollers, baked at 120°C for 4 minutes, and then the release paper is torn off to obtain the high Stretchy, eco-friendly synthetic leather.

[0030] The...

Embodiment 2

[0033] A kind of preparation method of environment-friendly synthetic leather of high elasticity:

[0034] (1) Take water-based epoxy resin and distilled water according to the mass ratio of 1:2.1 and apply it on the release paper, and bake it at 110°C for 3 minutes to obtain the surface layer-release paper;

[0035] (2) Take 22 parts of water-based polyurethane and 33 parts of water according to the formula components of the adhesive layer, and then add 0.4 parts of nano-SiO 2 Particle, 4 parts of vitrified microspheres, 4 parts of glyceryl tristearate, 0.3 part of organosilicon defoamer and 0.2 part of polyoxyethylene fatty acid ester, get bonding layer slurry; Surface in step (1) Coat the adhesive layer slurry on the layer, use the floating roller to float the weft-knitted elastic knitted fabric on the surface layer-release paper, bake at 110°C for 5min, and then tear off the release paper, that is Obtain the environment-friendly synthetic leather of described high elastic...

Embodiment 3

[0039] A kind of preparation method of environment-friendly synthetic leather of high elasticity:

[0040] (1) Take the water-based amino resin and distilled water according to the mass ratio of 1:2, apply it on the release paper, and bake it at 115°C for 2 minutes to obtain the surface layer-release paper;

[0041] (2) Take 20 parts of water-based polyurethane and 30 parts of water according to the formula components of the adhesive layer, and then add 0.2 parts of nano-SiO 2 Particles, 3 parts of vitrified microspheres, 2 parts of polyethylene wax, 0.1 part of organosilicon defoamer and 0.1 part of sorbitan fatty acid ester, to obtain the adhesive layer slurry; coat the surface layer in step (1) Cover the adhesive layer slurry, float the weft-knitted elastic knitted fabric on the surface layer-release paper with floating rollers, bake at 110°C for 3 minutes, and then tear off the release paper to obtain the Eco-friendly synthetic leather with high elasticity.

[0042] The av...

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Abstract

The invention relates to the technical field of synthetic leather, in particular to environment-friendly synthetic leather with high elasticity. The synthetic leather comprises a weft-knitted elasticknit fabric layer, a waterborne resin surface layer and an adhesion layer arranged between the weft-knitted elastic knit fabric layer and the waterborne resin surface layer, wherein the adhesion layerhas an interlayer hollow balloon structure; a thickness ratio of the weft-knitted elastic knit fabric layer, the adhesion layer and the waterborne resin surface layer is 1:(0.05-0.1):(0.02-0.1); thesize of a hollow balloon is 5-20 mu m. According to the synthetic leather, the adhesion layer with the interlayer hollow balloon structure is arranged between the weft-knitted elastic knit fabric layer and the waterborne resin surface layer, so that the synthetic leather can restore gradually when extruded by external force, and the phenomenon that thickness of the synthetic leather is reduced after follow-up embossing treatment and vacuum suction treatment is eliminated.

Description

technical field [0001] The invention relates to the technical field of synthetic leather, in particular to a high-elastic environment-friendly synthetic leather. Background technique [0002] The main processes for the production of PU synthetic leather include wet and dry processes. The wet process includes single coating, dipping and impregnation coating; the dry process includes direct coating and scraping and release paper. The wet process produces semi-finished products (commonly known as bass), which must be dry-processed and other post-processing before they become finished products. [0003] The dry production process generally uses the release paper as the carrier, and the PU resin slurry is smeared on it (generally 1 to 2 times), and then enters the oven, heated and dried to remove the solvent in the resin to form PU polyurethane. The skin film, and then the bass or other substrates and the PU polyurethane surface layer are bonded together through the adhesive lay...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/00D06N3/14
Inventor 黄小平
Owner 福建展宏人造革有限公司