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Preparation method for high-strength wear-resistant leather

A high-strength, leather-based technology, applied in leather drying, leather surface treatment, small raw leather/big raw leather/leather/fur treatment, etc., can solve problems such as easy wear or damage, damage to leather products, and limited use range, etc., to achieve The effect of prolonging the service life, reducing moisture, and avoiding mildew and deterioration

Inactive Publication Date: 2019-03-29
亓明芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Leather is denatured and non-perishable animal skin obtained through physical and chemical processing such as depilation and tanning. Leather can be used to prepare shoes, clothing, hats, decorations and furniture, etc. The prepared products are often used in daily life. It is realized that if it is accidentally scratched during use, it will be easily worn or damaged, which will cause great damage to the leather products. Therefore, a high-strength, wear-resistant leather is needed to reduce the damage caused by scratches during use.
[0003] The existing patent document CN 103525957 A discloses a production method of wear-resistant leather. The processed leather is sequentially subjected to primer coating, embossing, middle coating, top coating, drumming, and color repair to obtain a finished leather product. Increase the density of the leather to increase the peel strength and wear resistance of the leather. The wear resistance of the leather obtained in the patent document does have a certain improvement, but because the leather obtained with a higher density is harder, the range of use is greatly restricted. limits

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for preparing high-strength wear-resistant leather, comprising the following steps:

[0020] (1) Retanning: Put the split and trimmed leather after tanning in chrome tanning agent for re-kneading, drum tanning at 41°C for 5 hours, take it out, rinse it with deionized water, and promote collagen fibers in the leather Synthetic to make the leather texture uniform and soft to obtain retanning material;

[0021] (2) Primary drying: put the retanning material in an oven and dry at 37°C until the water content is 43%, so that the water content can be rapidly reduced, the porosity of the leather surface can be reduced, the uniformity of the leather can be improved, and the Temperature to 28°C, continue to dry until the moisture content is 20%, so that the moisture inside the leather material will slowly lose, increase the mesh structure and fiber strength inside the leather material, make the leather breathable and warm, comfortable to wear, and get a dry material onc...

Embodiment 2

[0028] A method for preparing high-strength wear-resistant leather, comprising the following steps:

[0029] (1) Retanning: put the split and trimmed leather after tanning in chrome tanning agent for re-kneading, drum tanning at 42°C for 5 hours, take it out, rinse it with deionized water, and promote collagen fibers in the leather Synthetic to make the leather texture uniform and soft to obtain retanning material;

[0030] (2) Primary drying: put the retanning material in an oven and dry at 38°C until the water content is 44%, so that the water content can be quickly reduced, the porosity of the leather surface can be reduced, and the uniformity of the leather can be improved, and then the water content can be reduced. Temperature to 29°C, continue to dry until the water content is 21%, so that the moisture inside the leather material will slowly lose, increase the mesh structure and fiber strength inside the leather material, make the leather breathable and warm, comfortable...

Embodiment 3

[0037] A method for preparing high-strength wear-resistant leather, comprising the following steps:

[0038] (1) Retanning: put the split and trimmed leather after tanning in chrome tanning agent for re-kneading, drum tanning at 43°C for 6 hours, take it out, rinse it with deionized water, and promote collagen fibers in the leather Synthetic to make the leather texture uniform and soft to obtain retanning material;

[0039] (2) Primary drying: put the retanning material in an oven and dry at 39°C until the water content is 45%, so that the water content can be quickly reduced, the porosity of the leather surface can be reduced, and the uniformity of the leather can be improved, and then the water content can be reduced. Temperature to 30°C, continue to dry until the moisture content is 22%, so that the moisture inside the leather material will be slowly lost, the mesh structure and fiber strength inside the leather material will be increased, the leather material will be breat...

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Abstract

The invention mainly relates to the technical field of leather processing, and discloses a preparation method for high-strength wear-resistant leather. The preparation method comprises the steps of retanning, primary drying, primary coating, secondary coating and secondary drying. The preparation method for the high-strength wear-resistant leather has the advantages that the method is simple, andthe obtained leather is soft, breathable, high in strength and high in wear resistance, does not uses harmful chemical components and is healthy and environmentally-friendly; a tanned leather materialis put into a chrome tanning agent for rotary drum retanning, so that the synthesis of collagen fibers in the leather is promoted, and the leather is uniform and soft in texture; after retanning, theleather is subjected to primary drying, so that the moisture is rapidly reduced before high-temperature drying, the porosity of the surface of the leather material is decreased, the uniformity of theleather material is improved, the temperature is decreased for drying, so that the moisture in the leather material is slowly lost, mesh structures inside the leather material are increased, and thefiber strength is improved, so that the leather material is breathable, warm-keeping and comfortable to wear.

Description

technical field [0001] The invention mainly relates to the technical field of leather processing, in particular to a preparation method of high-strength wear-resistant leather. Background technique [0002] Leather is denatured and non-perishable animal skin obtained through physical and chemical processing such as depilation and tanning. Leather can be used to prepare shoes, clothing, hats, decorations and furniture, etc. The prepared products are often used in daily life. It is realized that if it is accidentally scratched during use, it will be easily worn or damaged, which will cause great damage to the leather products. Therefore, a high-strength, wear-resistant leather is needed to reduce the damage caused by scratches during use. . [0003] The existing patent document CN 103525957 A discloses a production method of wear-resistant leather. The processed leather is sequentially subjected to primer coating, embossing, middle coating, top coating, drumming, and color re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14C3/02C14B1/58C14C11/00
CPCC14B1/58C14C3/02C14C11/00
Inventor 亓明芳
Owner 亓明芳
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