Dyeing process for treasure island suede microfiber leather and wastewater recycle technique in dyeing process

Abstract

The invention discloses a dyeing process for treasure island suede microfiber leather. The dyeing process comprises the following steps of a base cloth processing sub-process and a dyeing sub-process, wherein in the base cloth processing sub-process, the steps of dipping, solidifying, washing, dyeing, coating and surface grinding are utilized to obtain the treasure island suede microfiber leather, and the dyeing sub-process is carried out at a high temperature; in the dyeing sub-process, the treasure island suede microfiber leather is dyed at 26-28 DEG C for initial dyeing, then the temperature is increased to 57-63 DEG C at an increase speed of 1 DEG C / min and the treasure island suede microfiber leather is kept at the temperature of 57-63 DEG C for 13-14 minutes; the temperature is increased to 82-86 DEG C at an increase speed of 1 DEG C / min and the treasure island suede microfiber leather is kept at the temperature of 82-86 DEG C for 14-16 minutes; the temperature is increased to 111-113 DEG C at an increase speed of 0.6-1 DEG C / min and the treasure island suede microfiber leather is kept at the temperature of 111-113 DEG C for 18-21 minutes; finally, the temperature is decreased to 68-71 DEG C at the speed of 1.5-1.8 DEG C / min. The invention also discloses a wastewater recycle technique in the dyeing process of the treasure island suede microfiber leather, and according to the dyeing process for the treasure island suede microfiber leather and the wastewater recycle technique in the dyeing process of the treasure island suede microfiber leather, the dyeing time can be shortened by controlling the dyeing temperature, the time and time periods of temperature rising and temperature decreasing; for the dyeing process, the dyeing rate and color fastness of the dyed base cloth are good, dyeing is balanced evenly, the color of the dyed base cloth is deep and dense, and the color brightness is pure; finished products have the advantages of both a microfiber material and a leather material, and recovered DMF from the wastewater generated in the dyeing process can be reused so as to reduce damage to the environment and surrounding workers; the dyeing process for the treasure island suede microfiber leather and the wastewater recycle technique in the dyeing process of the treasure island suede microfiber leather are environment-friendly and can save energy.

Description

technical field [0001] The invention relates to a suede microfiber skin and, in particular, to a preparation process of a suede microfiber skin. Background technique [0002] At present, in the shoes, clothing, luggage and other industries, more high-end leather materials are used, but the leather materials are derived from animal leather, and the resources are very limited. Under the premise of vigorously promoting environmental protection and cherishing the environment, microfiber materials have physical properties comparable to leather, and even high-grade microfiber materials have better physical properties than genuine leather materials. Therefore, microfiber materials are recognized by consumers. and favorite. [0003] Although microfiber materials can partially replace leather materials and are widely used in various fields, it is difficult to completely recover the solvents used in the preparation of superfiber materials, and some of the solvents evaporate into the ...

AI Technical Summary

Problems solved by technology

[0003] Although microfiber materials can partially replace leather materials and are widely used in various fields, it is difficult to completely recover the solvents used in the preparation of superfiber materials, and some of the solvents evaporate into the air, which will cause harm to the environment and surrounding workers. a certain degree of damage

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