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Deep-grain solvent-free synthetic leather

A solvent-free, synthetic leather technology, applied in the field of synthetic leather, can solve problems such as pinholes, exposed bottoms, and rotten surfaces, and achieve the effect of increasing quality

Inactive Publication Date: 2021-02-23
QINGYUAN QILI SYNTHETIC LEATHER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the process flow of using release paper for texture transfer is relatively the simplest. Now many tanneries have used paper texture more and more widely, but paper texture has certain limitations in practical application and cannot achieve the embossed effect. Three-dimensional and clear, mainly manifested in deep grain products, such as crocodile grain, stone grain and other products, even in the production process, it is easy to have "pinholes", "rotten surface", "bottom exposed" and other bad phenomena, serious quality problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1 The manufacture of solvent-free synthetic leather for sofa

[0020] The technological process of the preparation method of the deep-grain solvent-free synthetic leather comprises the following steps:

[0021] S1. Choose a high-density single-sided long-haired base fabric with a hair length of 0.45mm.

[0022] S2. Preparation of dry surface layer slurry: Dilute the hard resin (120 modulus, 30% solid content) with pure DMF to a viscosity of 3000cps, add 3-10 parts of color chips to 100 parts of the diluted resin, stir and disperse evenly, stand-by.

[0023] S3. Dry middle layer slurry preparation: Dilute the soft resin (15 modulus, 30% solid content, good slipperiness, and good anti-floating property) with pure DMF to a viscosity of 3000cps, and add it to 100 parts of the diluted resin 3-10 parts of color chips, stir evenly and disperse, set aside.

[0024] S4. Solvent-free layer slurry configuration: 85 parts of solvent-free resin, 105 parts of diethylene...

Embodiment 2

[0027] Embodiment 2 Manufacture of solvent-free synthetic leather for clothing

[0028] The technological process of the preparation method of the deep-grain solvent-free synthetic leather comprises the following steps:

[0029] S1. Choose a high-density single-sided long-haired base fabric, with a pile length of 0.39mm.

[0030] S2. Preparation of dry surface layer slurry: Dilute the hard resin (120 modulus, 30% solid content) with pure DMF to a viscosity of 3000cps, add 3-10 parts of color chips to 100 parts of the diluted resin, stir and disperse evenly, stand-by.

[0031] S3. Dry middle layer slurry preparation: Dilute the soft resin (15 modulus, 30% solid content, good slipperiness, and good anti-floating property) with pure DMF to a viscosity of 3000cps, and add it to 100 parts of the diluted resin 3-10 parts of color chips, stir evenly and disperse, set aside.

[0032] S4. Solvent-free layer slurry configuration: 100 parts of solvent-free resin, 95 parts of diethylen...

Embodiment 3

[0035] Embodiment 3 Manufacture of solvent-free synthetic leather for bags

[0036] The technological process of the preparation method of the deep-grain solvent-free synthetic leather comprises the following steps:

[0037] S1. Choose a high-density single-sided long-haired base fabric with a hair length of 0.35mm.

[0038] S2. Preparation of dry surface layer slurry: Dilute the hard resin (120 modulus, 30% solid content) with pure DMF to a viscosity of 3000cps, add 3-10 parts of color chips to 100 parts of the diluted resin, stir and disperse evenly, stand-by.

[0039] S3. Dry middle layer slurry preparation: Dilute the soft resin (15 modulus, 30% solid content, good slipperiness, and good anti-floating property) with pure DMF to a viscosity of 3000cps, and add it to 100 parts of the diluted resin 3-10 parts of color chips, stir evenly and disperse, set aside.

[0040] S4. Solvent-free layer slurry configuration: 100 parts of solvent-free resin, 100 parts of diethylene gl...

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Abstract

The invention provides deep-grain solvent-free synthetic leather, and relates to the field of synthetic leather. The deep-grain solvent-free synthetic leather comprises a surface layer, a middle layer, a solvent-free layer and a base cloth layer, wherein the surface layer is formed by coating surface layer slurry on deep-grain release paper; the middle layer is formed by coating middle layer slurry on the surface layer; the solvent-free layer is formed by coating solvent-free double-component resin slurry on the middle layer; and a high-density single-sided long-hair base cloth layer is attached onto the solvent-free layer. The deep-grain solvent-free synthetic leather prepared from the high-density single-sided long-hair base cloth and main raw materials can be pressed to form three-dimensional clear grains, and can be applied to high-grade products such as sofa leather, home decoration interior leather, automobile interior leather, clothing leather and the like.

Description

technical field [0001] The invention relates to the field of synthetic leather, in particular to a deep grain solvent-free synthetic leather. Background technique [0002] In the traditional synthetic leather production process, there are usually three ways to give leather surface texture, namely embossing, vacuum suction and paper texture. Among them, the process of using release paper for texture transfer is relatively the simplest. Now many tanneries use paper texture more and more widely. However, paper texture has certain limitations in practical application and cannot achieve the embossed effect. Three-dimensional and clear, mainly manifested in deep grain products, such as crocodile grain, stone grain and other products, even in the production process, it is easy to have "pinholes", "rotten surface", "bottom exposed" and other bad phenomena, serious quality problems. [0003] In recent years, with the continuous improvement of people's living standards, consumers' ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/00
CPCD06N3/0097D06N3/0009D06N3/004D06N3/0077D06N2211/28D06N2211/263D06N2211/14D06N2211/10
Inventor 刘爱明罗志清郑重郑然梁勇劲陈丽燕
Owner QINGYUAN QILI SYNTHETIC LEATHER