Phosphorus-free nitrogen-free dye-accelerating repairing agent and preparation method thereof

Abstract

The invention discloses a phosphorus-free nitrogen-free dye-accelerating repairing agent and a preparation method thereof. The phosphorus-free nitrogen-free dye-accelerating repairing agent comprises the following components of 30-60% of ester compound, 10-30% of emulsifying dispersant, 1-13% of cosolvent and 0-10% of deionized water, wherein the ester compound comprises a compound of formula (1), a compound of formula (2) or a combination of the compound of formula (1) and the compound of formula (2), wherein the compound of formula (1) is 1, 4-cyclohexane carboxylic acid ester, and the compound of formula (2) is one or a mixture of 1, 2-cyclohexane carboxylic acid ester and 2-(acetyl)-1, 2, 3-tricarboxylic acid tributyl ester in any proportion. According to the repairing agent, 1, 4-cyclohexane carboxylic acid dibutyl ester, 1, 2-cyclohexane carboxylic acid diisononyl ester and 2-(acetyl)-1, 2, 3-tricarboxylic acid tributyl ester are adopted as the main plasticizers so as to provide the excellent migration dyeing, after-finishing and repairing performance, and the good leveling property and the good correction rate are obtained when the repairing agent is used for the dyeing and the repairing of the polyester fiber fabric.

Description

technical field [0001] The invention specifically relates to a dyeing and processing auxiliary agent for polyester textiles, in particular to a non-phosphorous and nitrogen-free dyeing accelerator and repairing agent and a preparation method thereof. Background technique [0002] Polyester fiber is widely used. It has compact structure, high crystallinity, and difficult dyeing. Commonly used disperse dyes are dyed by high temperature, high pressure or hot melt. However, accidents or mistakes occur from time to time during the dyeing process, resulting in dyeing defects such as colored flowers, color differences, and stripes in dyed fabrics. Although dyeing and finishing workers are aware of these problems, they cannot be completely predicted or avoided; after dyeing defects appear, color correcting agents are passively used to solve them. The color correction agents such as wintergreen oil and methylnaphthalene used in the early days are not only poisonous and smelly, but a...

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Problems solved by technology

However, the raw materials used in such patents partially contain phosphorus (such as: isomeric decanol ether phosphate), nitrogen (such as: piperazine carboxylate, fatty amine polyoxyethylene ether, ethylenediamine bisdimethylheptyl Sodium alkyl sulfonate) elements, volatile and flammable solvents (such as: ethanol), increase the load of printing and dyeing wastewater and waste gas treatment; after the modification of benzyl benzoate, it is loaded with foamed copper, which may cause fabric damage after treatment. Upper copper ion content exceeds the standard

[0004] At present, there are many repairing agent products used in the domestic and foreign markets, and the products cannot meet ZDHC's MRSL (v2.0), Oeko-Tex Standard 100's MRSL (v2020.2), bluesign's BSSL (v10.1), REACH The requirements of the SVHC (205 items) and other regulations, as well as the discharge standards of printing and dyeing wastewater, waste gas, etc.

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