Black plate light-colored fur leather product coating process

Abstract

The invention belongs to the technical field of processing of leather products and discloses a black plate light-colored fur leather product coating process. The process comprises pre-coating, finishing of semi-finished products, post-coating and finishing of finished products. Pre-coating includes horizontal toggling, roller coating, drying, water spraying and cage rotating; finishing of the semi-finished products includes staking and polishing; post-coating includes vertical toggling, bottom covering, spraying of a bottoming coat, one-time ironing, spraying of a surface coat and ironing of the finished products; finishing of the finished products includes fur ironing, fur shearing, brushing of a fur ironing agent, ironing of the finished products and warehousing of the finished products.A roll coating material includes, by weight, 200-500 parts of a penetrating agent Metoxi, 500-800 parts of a penetration leveling agent 0240, 100-200 parts of dye water 5915, 80-120 parts of ultrafine pigment paste 5450 and 100-200 parts of BASF black dye water, wherein the total use amount of the dye water 5915 and the BASF black dye water is 280-300 parts. The process reduces the discharge of dyeing wastewater and saves water and chemicals, and the production is safer and more environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of wool leather product processing, and in particular relates to a finishing process of black board light-colored wool leather products. Background technique [0002] When dyeing wool and leather products, due to the different fiber structures of the wool quilt and the leather board, the coloring sequence and coloring ability are different, it is necessary to dye the wool color at high temperature and then dye the board color at low temperature, and blackboard light-colored wool products are very easy to cause dyeing. The board dye acts on the wool to change the color of the wool surface. The traditional blackboard light-colored wool drum dyeing technology consumes a lot of water, the cost of dyeing wastewater treatment is high, and the process is difficult to control, especially in summer when the temperature is high, the water temperature in the drum when dyeing boards is difficult due to mechanical effect...

AI Technical Summary

Problems solved by technology

[0002] When dyeing wool and leather products, due to the different fiber structures of the wool quilt and the leather board, the coloring sequence and coloring ability are different, it is necessary to dye the wool color at high temperature and then dye the board color at low temperature, and blackboard light-colored wool products are very easy to cause dyeing. Effect of board dye on the wool cover to change the color of the wool surface

The traditional blackboard light-colored wool drum dyeing technology consumes a lot of water, the cost of dyeing wastewater treatment is high, and the process is difficult to control, especially in summer when the temperature is high, the water temperature in the drum when dyeing boards is difficult due to mechanical effects and external environmental influences. keep it under low temperature conditions

In addition, the dyed dyes sold on the market cannot guarantee that the dyed board is completely free of hair. Therefore, although the color fastness and quality of the product obtained by this traditional drum dyeing method are good, the probability of contamination of the wool surface is also quite high. Large, affecting the product qualification rate

[0003] At present, there are also related studies that use the roller coating method instead of dyeing to color the board surface, but this roller coating method is carried out with dye water and solvent as the formula, and there are problems of color migration and metallic light when the concentration of dye water is high. problem, it will also cause a lot of trouble for post-finishing

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