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A kind of water-based environmental protection leather finishing method

A water-based and finishing technology, applied in the direction of leather impregnation, leather surface treatment, leather surface mechanical treatment, etc., can solve the problems of disability, long pile, difficult water-based finishing, etc., to achieve the guarantee of style and grade, and the best physical properties Effect

Active Publication Date: 2019-09-20
隆丰革乐美时尚有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are many domestic researches on leather water-based finishing, but few applications, especially the research on water-based finishing technology on sheep shearling is even less, mainly because water-based finishing is immature, and the physical properties of water-based finished leather are inferior to those of conventional solvent-based finished leather. However, the nature of sheep shearing is quite different from that of ordinary leather. Because sheep shearing has a board surface and a rough surface, the finishing can only be carried out on the board surface. The sheep shearing board surface has the characteristics of slight disability and long pile. It also leads to the difficulty of its water-based finishing

Method used

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  • A kind of water-based environmental protection leather finishing method

Examples

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Embodiment example 1

[0021] A kind of water-based environmental protection leather finishing method, comprises the following steps:

[0022] Back cover: cover the surface of the sheep shearling board with water-based waterproof material. The water-based waterproof material 7403-AH is mixed with water at a ratio of 1:1. It is sprayed with a pressure of 3kg, a gun grid of 12 grids, and a skinning speed of 9m. Spray once;

[0023] Stand still: stand for more than 4 hours to ensure the water resistance of the leather board;

[0024] Ironing: temperature 80℃, pressure 50kg;

[0025] Finishing color paste: color paste is a mixture of white paste and a certain amount of pigment paste, the proportion is water-based touch wax 4566-AA 60-90 parts, water-based polyurethane resin 1707-UR 45-55 parts, water-based polyurethane resin 1417-UR 95 ~105 parts, water-based acrylic resin 2350-RE 90-110 parts, water-based hand feeling agent 7610-AT 5-15 parts, water-based hand feeling agent 7614-AT 5-15 parts, water 3...

Embodiment example 2

[0035] A kind of water-based environmental protection leather finishing method, comprises the following steps:

[0036] Back cover: cover the surface of the sheep shearling board with water-based waterproof material. The water-based waterproof material 7403-AH is mixed with water at a ratio of 1:1. It is sprayed with a pressure of 3kg, a gun grid of 12 grids, and a skinning speed of 9m. Spray once;

[0037] Stand still: stand for more than 4 hours to ensure the water resistance of the leather board;

[0038] Ironing: temperature 80℃, pressure 50kg;

[0039] Finishing white paste: white paste is a mixture of water-based polyurethane, water-based acrylic, water-based wax, water-based feel agent, etc. in appropriate proportions. The ratio is 80 parts of water-based feel wax 4566-AA, 50 parts of water-based polyurethane resin 1707-UR, 100 parts of water-based polyurethane resin 1417-UR, 100 parts of water-based acrylic resin 2350-RE, 10 parts of water-based feel agent 7610-AT, wa...

Embodiment example 3

[0051] A kind of water-based environmental protection leather finishing method, comprises the following steps:

[0052] Back cover: cover the surface of the sheep shearling board with water-based waterproof material. The water-based waterproof material 7403-AH is mixed with water at a ratio of 1:1. It is sprayed with a pressure of 3kg, a gun grid of 12 grids, and a skinning speed of 9m. Spray once;

[0053] Stand still: stand for more than 4 hours to ensure the water resistance of the leather board;

[0054] Ironing: temperature 80℃, pressure 50kg;

[0055] Finishing white paste: white paste is a mixture of water-based polyurethane, water-based acrylic, water-based wax, water-based feel agent, etc. in appropriate proportions. The ratio is 80 parts of water-based feel wax 4566-AA, 50 parts of water-based polyurethane resin 1707-UR, 100 parts of water-based polyurethane resin 1417-UR, 100 parts of water-based acrylic resin 2350-RE, 10 parts of water-based feel agent 7610-AT, wate...

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Abstract

The invention provides a waterborne environment-friendly leather finishing method. The method includes following steps: 1), using a waterborne waterproof material to bottom-seal a board made of shorn sheepskin to obtain bottom-sealed shorn sheepskin; 2), sequentially finishing the bottom-sealed shorn sheepskin with white paste, colored paste and white paste, and performing gloss oil spraying, milling and neatening to obtain waterborne environment-friendly leather, wherein the colored paste is a mixture of pigment paste and white paste, and the white paste is waterborne white paste. By the method, waterborne finishing of the shorn sheepskin can be realized; the white paste is coated after the colored paste is coated, so that exquisiteness and transparency of the surface of a coating can be ensured, a product is ensured to have excellent physical performance, and style and grade of the shorn sheepskin product can be guaranteed.

Description

technical field [0001] The invention relates to a water-based environment-friendly leather finishing method, which belongs to the technical field of fur processing and finishing. Background technique [0002] The ingredients of traditional leather finishing agents are mostly solvent-based, which have the characteristics of good leveling, fast drying and low cost, but they are prone to produce volatile organic compounds (VOC), flammability and health hazards, causing greater environmental damage. Pollution and security threats. Organic solvents and the VOC they produce are toxic substances to the human body, and will affect the human body's circulatory system, central nervous system, respiratory system, and metabolism; at the same time, due to the low flash point of organic solvents, special care should be taken when storing and using them , to avoid production safety risks. Environmental and safety factors are increasingly becoming the driving force for innovation and deve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C14C11/00C14C9/00C14B15/02C14B1/54C09D175/04C09D133/00C09D7/65
Inventor 张新平张晓庆杨乐罗旭赵克伟苗臻林赵霜
Owner 隆丰革乐美时尚有限公司