A kind of disperse/reactive homogeneous printing dye and its printing process

Abstract

The invention discloses a disperse / activated one-emulsion paste printing dye, mainly prepared from the following components: composite paste slurry, an alkaline agent, reserve salt, urea, activated dye, disperse dye and water, wherein the composite paste is mainly prepared from the following components: 60% of sodium alginate, 20-30% of sodium polyacrylate, 5-15% of polyethylene glycol 2000 and 5% of polyvinyl pyrrolidone. A printing technology of the one-emulsion paste printing dye comprises the steps of printing, drying, baking (at the temperature of 180 DEG C for 7 minutes), washing by cold water, washing by alkaline water (at the temperature of 95 DEG C for 3 minutes), washing by hot water (at the temperature of 80-90 DEG C), washing by cold water, neutralizing and drying; after that, carrying out post-boarding and tentering. The disperse / activated one-emulsion paste printing dye successfully solves the problems that a disperse dye and an activated dye are poor in compatibility during one-emulsion paste printing, the paste pH value is sensitive to the disperse dye, the disperse dye and the activated dye are low in color yield percentage and serious in white ground contamination, a cloth cover effect is poor since the disperse dye and the activated dye are large in dyeing difference of fibers, and the like; the printing technology is more reasonable in process, clean and environment-friendly in production and stable in product quality.

Description

technical field [0001] The invention relates to a disperse / reactive homosizing printing dye and a printing process thereof, belonging to the field of textile printing and dyeing. Background technique [0002] The dispersion / reactive homogeneous printing process is considered to have the advantages of simple process, good hand feeling, and excellent fastness, but there are also many technical problems in this process, which are mainly manifested in the following aspects. Due to the need for reactive dyes to fix the color, the color paste contains an alkali agent, but most disperse dyes are sensitive to alkali, and they are easy to change color, fade, reduce dyeing rate, and even destroy the structure of disperse dyes. Since disperse dyes need to be dyed under high-temperature baking conditions, high temperature and the presence of alkali agents will affect the color fixation rate and shade of reactive dyes, and there are problems such as unstable sizing of disperse dyes and r...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the present invention proposes a new formulation of disperse / reactive dyes for same-size printing and a new process for color-fixing printing, aiming at solving the problems of poor compatibility of disperse dyes and reactive dyes for same-size printing, reactivity and Problems such as low color yield of disperse dyes, white ground staining and cloth surface effect caused by large difference in dyeing of two fibers, in addition, it can also reduce water consumption, reduce the discharge of toxic and harmful chemicals, and reduce the generation of waste