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Production method of anti-fouling and anti-folding leather

A production method and leather technology, applied in the field of leather, can solve the problems of poor surface anti-fouling ability, easy to be stained by dirt, affecting the appearance and use of leather, etc.

Pending Publication Date: 2020-10-30
漳浦致远皮革有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The surface of the existing leather has poor anti-fouling ability, and its surface is easily stained by dirt during use, and it is not easy to clean, and the surface is prone to micro-cracks during repeated twists and turns during use, which affects the appearance and use of leather

Method used

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  • Production method of anti-fouling and anti-folding leather
  • Production method of anti-fouling and anti-folding leather
  • Production method of anti-fouling and anti-folding leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for producing antifouling and folding-resistant leather, comprising the following steps:

[0029] S1: Coat a layer of 2.0-2.5mm epoxy soybean oil-modified polyurethane resin on the leather surface, and bake at 80-95°C for 90min;

[0030] S2: After the baked leather is left to stand for 6 hours, it is placed at a temperature of 100-110°C for tumbling, and the rolling pressure of the tumbling machine is 5-6kg / cm 2 ;

[0031] S3: Mix the antifouling agent and additives evenly in a mass ratio of 3:1, and then apply it on the surface of the leather after rolling, with a coating thickness of 1-2mm, and then bake at 80-100°C for 60 minutes; The model of the agent is AG81, and the auxiliary agent is pentaerythritol oleate.

[0032] S4: Put the leather baked in S3 at a temperature of 80-85°C, and roll it at a pressure of 3-4kg / cm 2 Tangguang treatment is carried out on the tumbler;

[0033] S5: The scalded leather was drummed for 3 minutes at room temperature to obt...

Embodiment 2

[0040] The production method of the antifouling and folding-resistant leather in this example is the same as that in Example 1.

[0041] In the present embodiment, the preparation method of the polyurethane resin modified by epoxy soybean oil is basically the same as in Example 1, except that the mass ratio of the mixed solution to the hexamethylene diisocyanate trimer in step b) is 6: 1.2.

Embodiment 3

[0043] The production method of the antifouling and folding-resistant leather in this example is the same as that in Example 1.

[0044] In the present embodiment, the preparation method of the polyurethane resin modified by epoxy soybean oil is basically the same as in Example 1, except that the mass ratio of the mixed solution to the hexamethylene diisocyanate trimer in step b) is 6: 1.3.

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Abstract

The invention relates to the field of leather, in particular to a production method of anti-fouling and anti-folding leather. The production method comprises the following steps of S1, coating epoxidized soybean oil modified polyurethane resin to the surface of the leather and roasting the leather for 90 min at 80-95 DEG C; S2, leaving the roasted leather to stand for 6 hours, and placing the leather at 100-110 DEG C for roll finish, wherein the roller pressure of a tumbling mill is 65-6 kg / cm<2>; S3, uniformly mixing an anti-fouling agent and an assistant and coating the mixture to the surface of the leather after roll finish, and then roasting the leather for 60 min at 80-100 DEG C; S4, placing the roasted leather in the S3 on the tumbling mill for luster finishing treatment, wherein thetemperature is 80-85 DEG C, and the roller pressure is 3-4 kg / cm<2>; and S5, throwing the leather after luster finishing for 3 min to obtain a leather product. By arranging reasonable process and rawmaterials, the produced leather has better anti-fouling and anti-folding properties and is suitable for being further popularized and applied.

Description

technical field [0001] The invention relates to the field of leather, in particular to a method for producing antifouling and folding-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 is composed of natural protein fibers tightly woven in three-dimensional space. There is a special grain layer on the surface, which has natural grain and luster, and feels comfortable. [0003] The surface of the existing leather has poor anti-fouling ability, and its surface is easily stained by dirt during use, and is not easy to clean, and the surface is prone to micro-cracks during repeated twists and turns during use, which affects the appearance and use of leather. Contents of the invention [0004] In view of the above problems, the invention provides a method for producing antifouling and folding-resistant leather. [0005] To achieve the abov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/12B05D7/24B05D3/02B05D1/38B05D7/00C08G18/66C08G18/48C08G18/36C08G18/34C08G18/32C09D175/08C09D5/16B05D5/00C14C11/00
CPCB05D7/12B05D7/24B05D3/0254B05D1/38B05D7/544C08G18/6696C08G18/4833C08G18/36C08G18/348C08G18/3206C09D175/08C09D5/1662B05D5/00C14C11/00B05D2503/00
Inventor 许共同
Owner 漳浦致远皮革有限公司