Zero-drainage loose fiber plant dye replenishing dyeing method

Abstract

The invention discloses a zero-drainage loose fiber plant dye replenishing dyeing method. The zero-drainage loose fiber plant dye replenishing dyeing method comprises the following steps: step A, performing the dyeing pretreatment; step B, performing the dye replenishing; step C, repeating step B until the loose fiber plant with color is obtained; step D, performing the color fixation treatment: adding a loose fiber plant with color, dyeing fluid and a color fixation agent into a dyeing vat to perform the color fixation, wherein a ratio of the weight of the loose fiber plant with color to thevolume of the dyeing fluid is between 1: 5 to 1: 20, and the consumption of the color fixation agent is 1 to 7 g / l, so that the loose fiber plant with color after the color fixation can be obtained; step E, obtaining a finished product; and step F, performing the dye replenishing color fixation. On the premise of maintaining the requirement for the washing color fastness, the dyeing and finishingtime can be effectively shortened, the water resource is saved, the investment and operation cost of the sewage treatment can be reduced, the natural plant dye and natural additive can be saved, themethod is an environment-friendly ecological processing method, and the traditional dyeing industry with severe pollution is converted into a cleaning industry.

Description

technical field [0001] The invention relates to the field of textile printing and dyeing, in particular to a zero-drainage dyeing method for loose fiber plants. Background technique [0002] Natural plant dyes are used for dyeing loose cotton, carded cotton fiber, combed cotton, hemp fiber, tencel, modal, viscose, nylon, silk, wool, and have low color dyeing rate, poor level dyeing, and color fastness. In addition, there are problems such as long process flow, low production efficiency, poor color fastness and color brightness. Due to the low color uptake rate of vegetable dyes, the fibers after dyeing have more floating colors, and a large amount of water is required for washing, soaping, color fixing and other processes, resulting in more wastewater discharged from vegetable dye dyeing. Contents of the invention [0003] The purpose of the invention is to overcome the deficiencies in the prior art and provide a zero-drainage method for dyeing loose fiber plants in conti...

AI Technical Summary

Problems solved by technology

[0002] Natural plant dyes are used for dyeing loose cotton, carded cotton fiber, combed cotton, hemp fiber, tencel, modal, viscose, nylon, silk, wool, and have low color dyeing rate, poor level dyeing, and color fastness. In addition, there are problems such as long process flow, low production efficiency, poor color fastness and color brightness, etc.

Due to the low coloring rate of vegetable dyes, there are more floating colors in the fibers after dyeing, and a large amount of water is required for washing, soaping, color fixing and other processes, resulting in more wastewater discharged from dyeing of vegetable dyes