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Production process of regenerated leather

A technology of regenerated leather and production process, which is applied in the direction of special leather manufacturing, leather drying, leather surface mechanical treatment, etc. It can solve the problems that are not suitable for widespread use, poor quality of regenerated leather, high cost, etc., and achieve low cost, soft hand feeling, cost saving effect

Inactive Publication Date: 2018-01-16
福建省永建皮革科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of production process is not only backward, cumbersome, and costly, it is not suitable for widespread use, but also the quality of the produced regenerated leather is relatively poor, so the production process of regenerated leather needs to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A manufacturing process of regenerated leather, comprising the following steps:

[0024] (1) Crushing: the skin scraps are introduced into the crusher to be crushed into powders with small particle sizes, and water is automatically fed in, and the pulverized powders are made into skin pulp, and the weight ratio of the skin scraps to water is 1:0.5;

[0025] (2) fine grinding: the skin pulp obtained in step (1) is finely ground by a refiner to obtain a particle diameter of 300 mesh skin fibers;

[0026] (3) Blending: Add the dehydrating agent to the externally linked cationic silicone-modified acrylate resin emulsion and stir evenly, then add rosin saponification solution, aluminum sulfate and hand feeling agent in sequence, and then mix with the leather obtained in step (2). The fibers are put into the mixing tank and stirred evenly to form a slurry. The weight ratio of the skin fiber, externally linked cationic silicone modified acrylate resin emulsion, hand feeling ag...

Embodiment 2

[0036] A manufacturing process of regenerated leather, comprising the following steps:

[0037] (1) Crushing: the skin scraps are introduced into the crusher to be crushed into powders with small particle sizes, and water is automatically fed in, and the pulverized powders are made into skin pulp, and the weight ratio of the skin scraps to water is 1:0.6;

[0038] (2) fine grinding: the skin pulp obtained in step (1) is finely ground by a refiner to obtain a particle diameter of 320 mesh skin fibers;

[0039] (3) Blending: Add the dehydrating agent to the externally linked cationic silicone-modified acrylate resin emulsion and stir evenly, then add rosin saponification solution, aluminum sulfate and hand feeling agent in sequence, and then mix with the leather obtained in step (2). The fibers are put into the mixing tank and stirred evenly to form a slurry. The weight ratio of the skin fiber, externally linked cationic silicone modified acrylate resin emulsion, hand feeling ag...

Embodiment 3

[0049] A manufacturing process of regenerated leather, comprising the following steps:

[0050] (1) Crushing: the skin scraps are introduced into the crusher to be crushed into powders with small particle sizes, and water is automatically fed in, and the pulverized powders are made into skin pulp, and the weight ratio of the skin scraps to water is 1:0.8;

[0051] (2) fine grinding: the skin pulp obtained in step (1) is finely ground by a refiner to obtain a particle diameter of 350 mesh skin fibers;

[0052] (3) Blending: Add the dehydrating agent to the externally linked cationic silicone-modified acrylate resin emulsion and stir evenly, then add rosin saponification solution, aluminum sulfate and hand feeling agent in sequence, and then mix with the leather obtained in step (2). The fibers are put into the mixing tank and stirred evenly to form a slurry. The weight ratio of the skin fiber, externally linked cationic silicone modified acrylate resin emulsion, hand feeling ag...

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PUM

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Abstract

The invention discloses a production process of regenerated leather, wherein the regenerated leather is obtained by processes of crushing, fine grinding, material mixing, slurry holding, self draining, dehydration, drying, edge cutting, polishing, ironing and rolling. The invention relates to the production process of the regenerated leather; in the process of material mixing, leather fibers, an external crosslinking cationic organic silicon modified acrylate resin emulsion, a hand feeling agent, a rosin saponification liquid, aluminum sulfate and a dehydrating agent are put into a stirring barrel and are stirred uniformly to form slurry, and after slurry holding, full dehydration is performed so as to ensure that the obtained regenerated leather has soft hand feeling and high leather imitation degree, removed water can be reused, and the cost is saved. The production process of the regenerated leather is simple in process and low in cost, and the prepared regenerated leather has softhand feeling and high leather imitation degree.

Description

technical field [0001] The invention relates to the technical field of leather production, in particular to a production process of regenerated leather. Background technique [0002] Regenerated leather has the characteristics of both genuine leather and PU. It is a very common leather fabric today. At present, the manufacturing method of regenerated leather is generally to use the scraps (referred to as dander) discarded by tanneries and leather product factories, and adopt wet manufacturing process. It is made into a leather base, and then used after processing such as peeling and grinding. This production process is not only backward, cumbersome, and costly, it is not suitable for widespread use, and the quality of the produced regenerated leather is relatively poor, so the production process of regenerated leather needs to be further improved. Contents of the invention [0003] The purpose of the present invention is to provide a manufacturing process of regenerated l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14B7/00C14B1/58C14B1/50
Inventor 陈庆丰蒋永芳陈浩林树生
Owner 福建省永建皮革科技股份有限公司
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