Environment protection acidic color fixing agent and manufacture method thereof

Abstract

The invention relates to an effective environment protective acid fixing agent that is prepared by a polypropylene acid fixing agent, an addition agent and a solvent which are matched. The polypropylene acid fixing agent is prepared by the following steps: mixing isopropanol, methacrylic acid, 2-acrylamido-2-methylpropane sulfoacid, acrylic acid and sodium persulfate in deionized water to be reacted for 1 to 5 hours at 80 to 90 DEG C and acquiring a reaction product, namely, the polypropylene acid fixing agent by post treatment. The preparation method of the effective environment protective acid fixing agent includes: adding proper water, adding all the materials under the condition of stirring at 40 to 50 DEG C in sequence to be mixed for 2 to 3 hours, uniformly dissolving, filtering, discharging and controlling the pH to be 6 to 7. The materials of the invention are environment-protective, can reduce the treatment cost of waste water and can generate remarkable social and economic benefits.

Description

(1) Technical field [0001] The invention relates to an auxiliary agent for acid dye dyeing and a preparation method thereof, in particular to a color-fixing agent for dyeing protein fibers (including silk, wool, and regenerated protein fibers) and polyamide fibers (nylon) with acid dyes . (2) Background technology [0002] In recent years, with the improvement of people's economic level, the demand for textiles is increasing, and the requirements for textiles are also getting higher and higher, such as requiring more colorful clothing and textile production to meet various standards. Especially after China's accession to WTO, China's textile dyeing and finishing industry has developed rapidly. In textile printing and dyeing, a large number of nylon, silk, wool and blended textiles are dyed with acid dyes. Nylon, silk, wool and blended textiles dyed with acid dyes have the advantages of excellent leveling performance, complete color spectrum, and convenient use. They have d...

AI Technical Summary

Problems solved by technology

But practice has proved that there are serious shortcomings: phenols still have environmental protection problems, and tannins will cause fabric color change after color fixation and affect product quality;

[0007] (2) Formaldehyde and acetic acid (acetic anhydride is hydrolyzed into acetic acid) are volatile during production, so it is easy to cause unstable pH value and proportion, which is not conducive to ensuring the quality of acidic color fixing agent, and formaldehyde and dihydroxybiphenyl are irritating and sour. The health of laborers;

[0008] (3) The fastness is not good. To reach the fastness level 4, the amount of use must be increased, and the cost will increase accordingly;

[0009] (4) A large amount of additives is added, and the cost of wastewater treatment is high

The traditional acid color fixing agent is added in an amount of 4-6% of the weight of the fabric. After the dyeing task is completed, the auxiliary agent enters the wastewater, causing a large increase in the pollution of the wastewater, and the treatment cost of the wastewater is very high;

[0010] (5) Existing and traditional acidic color fixing agents are easily affected by water quality, and the combination of metal ions in water and acidic color fixing agents can easily cause staining;

[0011] (6) It is easy to cause color change and affect the water absorption and hand feeling of the fabric;

[0012] (7) High cost of use;

[0013] It can be seen that the problems existing in existing and traditional acid color fixing agents are very prominent

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