A kind of preparation method and application of ecological copper wet rubbing fastness improving agent

Abstract

The invention relates to a preparation method and the application of an ecological copper wet rubbing fastness improver. The method comprises the following steps: (1) preparing copper superfine powder modified by C12 alkyl sulfonate; (2) grinding and drying the copper nano superfine powder until the weight is constant; (3) uniformly mixing the dried copper superfine powder with butyl acrylate, methyl methacrylate and emulsifier n-hexadecane, adding a sodium dodecyl benzene sulfonate emulsifier water solution, uniformly stirring, and then performing ultrasonic dispersion in a water bath with the temperature of 0-4 DEG C for 200s to obtain a corresponding emulsion; (4) putting the emulsion into a four-neck flask, raising the temperature to 70 DEG C, adding a potassium persulfate initiator, and then reacting for 5-6 hours to obtain the ecological copper micro-capsule type wet rubbing fastness improver. The wearability of reactive dyeing fabric is improved, and the method has the characteristics that the method is simple, the cost is low, the time input and the human input are low, synthetic raw materials are low in toxicity, and the environmental pollution is reduced.

Description

technical field [0001] The invention relates to a preparation method and application of a wet rubbing fastness improving agent containing copper particles. Background technique [0002] During the wearing and use of dyed textiles or clothing, some dyes that are not firmly bonded to the fiber will fall off in contact with external objects, resulting in changes in the color of the dyed product, affecting the wearability of the fabric, and causing textile fastness. reduce. Especially for dark fabrics, the wet rubbing fastness is low. With the improvement of living standards, consumers' requirements for the quality of textiles are also constantly increasing. AATCC, ISO and national standards all stipulate that the wet rubbing fastness of ordinary dyed fabrics is qualified at grades 2 to 3, and foreign customers often require wet rubbing fastnesses to reach grade 3 or even higher. At present, the wet rubbing fastness of general dark-colored dyes is usually around level 2, and ...

AI Technical Summary

Problems solved by technology

[0004] Most of the wet rubbing fastness enhancers on the market are cationic, and cannot be bathed with anionic additives in application

The wet rubbing fastness improving agent has the following defects: first, the wet rubbing fastness improving agent has a higher production cost and a larger dosage, which has an impact on the shade and physical and mechanical properties of the fabric

Second, the synthetic raw materials of some wet rubbing fastness improving agents are highly toxic, and there are potential safety hazards in production, which do not meet environmental protection requirements

[0005] There are many reasons for the low wet rubbing fastness of fabrics, but one of the important factors is the structural characteristics of the fabric itself. Its surface is porous, hairy and rough. During the friction process, the friction coefficient between the fabric and the friction body is large, resulting in dye shedding

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