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Preparation method of color-changing leather coating

A technology of discoloration layer and coating, applied in leather surface treatment, leather/skin/leather/raw hide chemical treatment equipment, small raw hide/large raw hide/leather/fur treatment, etc. Problems such as poor adaptability, poor bonding fastness of discolored coating and leather, etc., to achieve excellent coverage, enhanced fatigue resistance and environmental adaptability, and improved utilization.

Active Publication Date: 2020-03-27
XINGYE LEATHER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a method for preparing a color-changing leather coating, which solves the problems of poor bonding fastness between the color-changing coating and leather, poor fatigue resistance and environmental adaptability of the color-changing coating in the prior art.

Method used

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Embodiment Construction

[0030] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the specification and specific implementations.

[0031] 1. Pretreatment coating

[0032] (1) The amount of each component of the coating agent in the dipping and filling process is 200 parts of water; 80 parts of polyacrylate resin dispersion F (BASF); 50 parts of polyacrylate resin emulsion IF (BASF); surfactant PT- 4235 (Stahl Fine Paint Co., Ltd.) 30 parts, the coating amount is 25g / sf.

[0033] (2) The amount of each component of the finishing agent in the softening process is 450 parts of water; the mixed emulsion of sulfite and phosphorylated triglycerides and dispersant TRUPON OSL (Templer) 150 parts; the surfactant PT-4235 (Starr Fine Coatings Co., Ltd.) 50 parts, the coating amount is 15g / sf.

[0034] 2. Substrate coating

[0035] The amount of each component of the base coat finishing agent is 400 parts of water; the composi...

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PUM

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Abstract

The invention discloses a preparation method of a color-changing leather coating. The preparation method specifically comprises the following steps of pretreatment coating, base layer coating, color-changing layer coating and protective layer coating. A color-changing coating agent in the color-changing layer coating procedure is prepared from the following components: 100 to 125 parts of water, 100 to 125 parts of comprehensive resin, 100 to 125 parts of polyurethane resin, 200 to 250 parts of polyacrylate resin, 45 to 60 parts of casein and 75 to 100 parts of a color-changing agent. The preparation method of the color-changing leather coating is wide in application range, the method can be used for manufacturing vamp leather, luggage leather, handbag leather, ornament leather and the like; compared with a common leather product, the color-changing leather product has intelligence, diversity and fashion and can meet the consumption requirements of consumers for difference, on one hand, the additional value and commercial value of leather and products thereof are improved, on the other hand, the application field of color-changing materials is widened, the development of the color-changing materials is promoted, and the color-changing leather coating has potential requirements and huge economic benefits.

Description

Technical field [0001] The invention relates to the field of tanning chemistry and engineering technology, in particular to a method for preparing a color-changing leather coating. Background technique [0002] Leather finishing refers to the use of finishing agents to form a protective coating on the grain of leather to increase the aesthetics of leather and its products, and to meet the market's different requirements for leather color, feel, and gloss. In recent years, with the rapid development of chemical materials, leather coatings continue to introduce new styles, such as color-changing coatings. The color-changing coatings have the function of temperature sensing or light-sensing color change. They are highly sought after by consumers and can improve leather and leather The commercial value of its products. [0003] Discoloration coating refers to the color change of the coating when it is stimulated by light or heat, such as white turning into blue, red, yellow, etc., and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14C11/00C14C15/00
CPCC14C11/00C14C11/003C14C15/00
Inventor 王小卓姚庆达温会涛柯俊雄吴义兴但卫华
Owner XINGYE LEATHER TECH CO LTD
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