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Shoe-heel regenerated leather

A technology for regenerated leather and shoe heel, applied in the field of regenerated leather, can solve the problems of the loss of high-quality collagen and tannin available resources, the high price of natural leather, and the inability of ordinary families to afford it. tight effect

Inactive Publication Date: 2012-07-18
ZHEJIANG SUNNYESINA REGENERATED LEATHER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In today's society, natural leather is widely used in the production of daily necessities and industrial products due to its excellent natural characteristics. However, with the growth of the world's population, human demand for leather has doubled. The limited amount of natural leather has long been unable to meet people's needs. Moreover, the price of natural leather is expensive, and ordinary families cannot afford it.
my country is the world's leather processing center and a big leather-making country. It produces 600,000 tons of shredded leather every year. At present, there is little research on the treatment of shredded leather. Most of them are discarded, which not only causes serious pollution to the environment, but also makes the Available resources such as high-quality collagen and tannin are lost in large quantities

Method used

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  • Shoe-heel regenerated leather
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: Regenerated shoe heel leather The composition includes the following components by weight percentage: 17% natural latex, 5% fish oil, 13% latex white rubber, the rest is 50% crushed leather, and 4% tannin extract.

Embodiment 2

[0018] Example 2: Regenerated shoe heel leather The composition includes the following components by weight percentage: 22% natural latex, 8% fish oil, 12% latex white rubber, the rest is 45% crushed leather, and 3% tannin extract.

Embodiment 3

[0019] Example 3: Heel regenerated leather The composition includes the following components by weight percentage: 27% of natural latex, 10% of fish oil, 10% of latex white rubber, the rest is 40% of broken leather, and 2% of tannin extract.

[0020] Performance Results Test Form

[0021]

[0022]

[0023] The performance test shows that the tensile strength (warp direction) is greater than 13N / mm 2 , the tensile strength (latitude) is greater than 11N / mm 2 , The warp elongation rate is less than 15%, the weft elongation rate is less than 26%, and the hardness is greater than 92HB, which meets the standard requirements.

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Abstract

The invention relates to shoe-heel regenerated leather which is characterized in that the composition comprises the following components in percentage by weight: 17-27 natural latex, 5-10 fish oil, 10-13 white glue, 40-50 crushed leather and 2-4 tannin extract. A manufacturing method of the shoe-heel regenerated leather comprises the following steps of: primarily crushing and intermediately crushing the crushed leather to manufacture pulp after the two steps of fine crushing, then refining through a refiner to separate impurities with large grain diameters, tanning the pulp through the tanninextract, carrying out leather auxiliary-agent processing , such as greasing by adding the fish oil, hardness increasing by using the white glue, dye toning and the like, simultaneously combining the processed pulp together with the natural latex and aluminum sulfate (used for drying and controlling a pH value) to be manufactured into a regular shape through dewatering and drying, and finally dewatering and drying. The product has the advantages of low price, high production efficiency, high drying speed and energy saving.

Description

technical field [0001] The invention relates to regenerated leather, in particular to regenerated shoe heel leather. Background technique [0002] In today's society, natural leather is widely used in the production of daily necessities and industrial products due to its excellent natural characteristics. However, with the growth of the world's population, human demand for leather has doubled. The limited amount of natural leather has long been unable to meet people's needs. Moreover, the price of natural leather is expensive, and ordinary families cannot afford it. my country is the processing center of the world's leather and a big leather-making country. It produces 600,000 tons of broken leather every year. At present, there is still little research on the treatment of broken leather. Most of them are discarded, which not only causes serious pollution to the environment, but also makes the Available resources such as high-quality collagen and tannins are lost in large qu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L89/06C08L31/04C08L7/02C08K5/103C08L93/00A43B21/18
Inventor 曾永强
Owner ZHEJIANG SUNNYESINA REGENERATED LEATHER
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