A kind of garment dyeing method of vat dye or sulfur dye

Abstract

The invention provides a method for dyeing garments with vat dyes or sulfur dyes. The method comprises the following steps: a. pre-washing the garments; b. dyeing the pre-washed garments; c. performing post-dyeing treatment on the garments: after draining the dye solution, the garments are placed in the vat with Run the empty tank for 10-30 minutes for oxidation or add oxidant for water washing and oxidation. After the color is stable, soaping and drying are carried out to complete the garment dyeing. The method of the invention is simple and easy, has low requirements on equipment performance, can greatly reduce processing cost, and successfully solves the phenomenon that the vat dye or sulfur dye is oxidized in advance during the dyeing process.

Description

technical field

[0001] The invention provides a method for dyeing garments with vat dyes or sulfur dyes, belonging to the technical field of textile printing and dyeing. Background technique

[0002] Products dyed with vat dyes or sulfur dyes have high washing and light fastness, and are widely loved by customers in the market. However, this type of dye often needs to add a large amount of alkali agent and reducing agent to reduce the dye to a dyeable state during the dyeing process. During the dyeing process, with the continuous contact between the dye solution and the air, additional Excessive alkali agent and reducing agent are used to ensure that the dye liquor can be in a stable reduction state. This process consumes a large amount of chemical materials and increases the difficulty of sewage treatment. In addition, affected by the dyeing process, vat dyes or sulfur dyes are often dyed by yarn padding or dyed in equipment with excellent airtightness, which restricts the...