Environment-friendly dacron dyeing repairing agent

Abstract

The invention discloses an environment-friendly dacron dyeing repairing agent which is prepared from the following raw materials in parts by weight: 45-55 parts of benzyl benzoate, 20-25 parts of dibutyl maleate, 15-25 parts of isomeric deca-alcohol phosphate and 5-10 parts of tween-80, wherein benzyl benzoate is a plasticizer and a solvent, dibutyl maleate is a main detergent, isomeric deca-alcohol phosphate is a main penetrant and an emulgator, and tween-80 is an emulgator. When dacron fiber is dyed at a high temperature (at 130 DEG C or even higher), disperse dye is easier to migrate from inside of fiber to outside of fiber under the synergistic effect of benzyl benzoate and dibutyl maleate, so that disperse dye is re-arranged in dacron fiber so as to realize true uniform color. Raw materials adopted by the scheme do not contain substances of very high concern (SHVC) forbidden in Europe such as APEO (Alkylphenol Ethoxylates) and the like, and the repairing agent is in accordance with demand of European Union Okeo-TexStandard 100 and REACH (Registration, Evaluation and Authorization of CHemicals), and is the environment-friendly dacron dyeing repairing agent.

Description

technical field [0001] The invention relates to the field of textile dyeing and finishing, in particular to an environment-friendly repairing agent specially used in polyester dyeing process. Background technique [0002] Polyester dyeing refers to the dyeing of polyester fibers with disperse dyes in an acidic environment at 130°C. In the traditional sense, if there are defects such as color spots, color flowers, and color differences in the process of polyester dyeing, or even more seriously, when there is a large difference in hue, it can only be judged as a waste product because it cannot be repaired into a genuine product. Therefore, It causes a great waste of textiles, and this defect is also a big problem that plagues dyeing and finishing factories and needs to be solved urgently. [0003] Dyeing of polyester with disperse dyes is a relatively complicated process. The disperse dyes first approach the polyester fiber from the dye liquor and are absorbed by the surface...

AI Technical Summary

Problems solved by technology

However, as the dyeing temperature increases, the dynamic balance begins to be broken, that is, the trend of "adsorption" gradually increases, while the trend of "desorption" gradually weakens, and the disperse dyes are no longer redistributed after being adsorbed on polyester fibers, thus It is easy to cause irreparable color spots, color flowers, color differences and other defects in polyester fibers

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