Photocatalyst discharge method for producing color patterns on topping textile

Abstract

The invention discloses a photocatalyst discharge method for producing color patterns on a topping textile. According to the method, a flower color dye and a ground color dye are respectively adopted to carry out a dyeing and topping treatment on a textile; and patterns are prepared into a hollow pattern printing, a photosensitive material is applied on the topping textile on the hollow position of the patterns, and a photocatalyst discharge method is adopted, such that local color elimination of the ground color dye is achieved while the flower color dye can be well maintained so as to produce a color pattern effect on the textile. According to the present invention, the process and the equipment are simple, the process is short and is easy to control, adaptability is wide, a printing paste, expensive printing equipment, and cumbersome processes and the like in the traditional printing are eliminated, and uses of a large number of drugs and waste liquid emission in the traditional printing are avoided so as to reduce production cost, provide significant advantages of energy saving, emission reduction, clean production and the like, and provide wide application prospects in clean production in the textile printing and dyeing industry.

Description

technical field [0001] The invention relates to textile dyeing and finishing technology, in particular to a photocatalyst color extraction method for producing colored patterns on over-dyed textiles, which uses a light source to trigger reducing agents, oxidants or semiconductor nanomaterials to form colored patterns on over-dyed textiles. Background technique [0002] For a long time, the textiles with colored floral patterns, with its rich and bright colors, meticulous and lifelike flower patterns, are deeply loved by consumers in general. At the same time, because of its high added value and considerable economic benefits, it is often favored by manufacturers. The traditional printing and dyeing processing methods for obtaining colorful patterns on textiles mainly include direct printing and discharge-resistant printing. Among them, direct printing is mainly suitable for producing colored patterns on white or light backgrounds, while discharge-resistant printing can be u...

AI Technical Summary

Problems solved by technology

[0003] The traditional printing and dyeing processing method not only has a long process flow, complex procedures, many factors affecting the product, and difficult conditions to control, but also requires the use of a large amount of chemicals and auxiliaries, consumes a large amount of water and energy, and produces a large amount of waste water and pollutants. Great challenges to ecology and environmental protection

At the same time, it directly leads to the higher production cost of these traditional methods or processes.

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