Dyeing technique of beige fabric

Abstract

The invention discloses a dyeing technique of a beige fabric, which comprises the following steps: raw fabric cylinder matching, pretreatment desizing, hot water cleaning of the raw fabric, heating and dyeing, cooling and cleaning, discharging and waterproof setting, finished product inspection and finished product rolling, wherein the desizing assistant in the pretreatment desizing step is composed of 80kg / l liquid alkali and 2 kg / l desizing agent; in the heating and dyeing step, 0478 gram of 2BLW blue dye, 0.665 gram of E-GL yellow dye and 0.861 gram of 3B red dye are added to every kilogram of fabric; and after the dyes are proportioned, 3kg / l 825 leveling agent, 3kg / l glacial acetic acid and 0.8kg / l color modifier are added to the dyeing assistant. The dyeing technique disclosed by the invention is simple and uses small amounts of assistant, thereby achieving the optimal dyeing effects of uniformity and penetration, ensuring the high dyeing glossiness and high color fastness after dyeing, and obviously enhancing the dyeing intensity and heat and light fastness.

Description

technical field [0001] The invention relates to a fabric dyeing process, in particular to a beige fabric dyeing process. Background technique [0002] At present, after the beige fabric is dyed, it is exposed to sunlight for a long time, and the sunlight contains ultraviolet light. Under the action of ultraviolet light, the chemical bonds in the dye will change, or even break, so that the chromophore and auxochrome in the dye The group structure is destroyed, thus losing the color; it is also possible that under the irradiation of ultraviolet rays, the three-dimensional structure of the dye changes, resulting in a change in color, showing color change, poor gloss, dark color, low dyeing strength, and heat fastness, color fastness In addition, the dyeing process is long, energy-consuming, time-consuming, costly, and dyeing is uneven. Contents of the invention [0003] In view of the above-mentioned technical problems, the purpose of the present invention is to propose a dy...

AI Technical Summary

Problems solved by technology

[0002] At present, after the beige fabric is dyed, it is exposed to sunlight for a long time, and the sunlight contains ultraviolet light. Under the action of ultraviolet light, the chemical bonds in the dye will change, or even break, so that the chromophore and auxochrome in the dye The group structure is destroyed, thus losing the color; it is also possible that under the irradiation of ultraviolet rays, the three-dimensional structure of the dye changes, resulting in a change in color, showing color change, poor gloss, dark color, low dyeing strength, and heat fastness, color fastness In addition, the dyeing process is long, energy-consuming, time-consuming, costly, and dyeing is uneven