Dyeing and printing process

Abstract

The invention relates to a textile dyeing and printing process, in particular to a hydrophobic textile material dyeing and printing process. The process comprises the steps that a textile to be treated is sequentially subjected to printing, drying, color development and aftertreatment, and then a printed finished product is obtained, wherein washing and drying can be performed again in the color development and finishing process. The process before printing is similar to traditional dye printing, a slurry-like composition can be printed on the surface of the textile material through round screen and flat screen printing machines. In the high temperature color development process, most of disperse dyes combine with hydrophobic fiber materials through intermolecular forces, a printing additive in printing slurry assists dye dispersion and high temperature color development ad meanwhile crosslinking curing is performed to form a film, so that surface dyes which do not combine with the fibers attach to the fiber surface. The washing water COD of the textile treated by adopting the dyeing and printing process is 30-2000 PPM, the chromaticity of partial varieties is smaller than 200 ppm, the chromaticity of partial varieties is smaller than 50 ppm, the chromaticity (diluted multiples) is smaller than 200, the chromaticity of partial varieties (diluted multiples) is smaller than 80, and the chromaticity of partial varieties (diluted multiples) is smaller than 30.

Description

technical field [0001] The invention relates to textile dyeing and printing technology, in particular to a hydrophobic textile material dyeing and printing process. Background technique [0002] Textile dyeing and printing can generally be divided into dye dyeing, printing and pigment dyeing and printing. Dyeing and printing are usually carried out through the intermolecular force of the dye itself or the interaction between the active group and the fiber. Pigment dyeing and printing are combined with the fabric in a physical bonding manner through the binder in pigment dyeing and printing paste. Generally speaking, the dyed and printed products obtained after dye printing are more environmentally friendly, with low formaldehyde content, bright color, good color fastness, soft hand feeling, and non-sticky printing parts; pigment printing process is simple, printing cost is low, and there are basically no three wastes produce. [0003] The traditional dyeing and printing p...

AI Technical Summary

Problems solved by technology

However, the coloring components used in pigment printing are generally pigments, which have no affinity with fibers and need to be adhered to the surface of fibers through adhesives, and the color generally cannot penetrate into the interior of the fibers, which causes the general color of pigment printing products to pass through. Poor permeability, not bright color, poor color fastness, not washable, hard hand feeling, poor yellowing resistance, etc.

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