Method for dyeing and finishing polyester and nylon composite filament corduroy

Abstract

The invention discloses a method for dyeing and finishing polyester and nylon composite filament corduroy, which comprises the following processes: checking a gray fabric; sewing the gray fabric; pre-shrinking in full width; splitting; pre-shaping; dyeing; soft finishing shaping; and packaging an end product, wherein a full width water washing machine is used for performing the process of pre-shrinking in full width; the process of splitting is performed according to a thermal treatment method and an alkali treatment method; during the process of pre-shaping, the temperature is 195 DEG C-200 DEG C and an assembly line turning speed is 30m / min-35m / min; dye liquor in the process of dyeing is aqueous solution of disperse dye or mixed aqueous solution of disperse dye and acidic dye; and the process of the soft finishing shaping is as follows: the corduroy passes through a material chute containing 10-15g / l softening agent aqueous solution, and then the corduroy is dried and shaped at high temperature, wherein the drying temperature is 165 DEG C-175 DEG C, the assembly line turning speed is 30m / min-35m / min and the softening agent is an organic silicon softening agent. The end product prepared according to the method provided by the invention has the advantages of high strength, full and mild velvet feeling, excellent shape-keeping property, convenience in washing and finishing, uniform dyeing effect, and capability of obtaining specific gigging effects such as frostwork or polyester peach skin, and the like.

Description

technical field [0001] The invention relates to a dyeing and finishing method for corduroy fabrics, in particular to a dyeing and finishing method for polyester-nylon compound silk corduroy. Background technique [0002] The traditional corduroy fabric is mainly made of cotton, the fabric is thick and wear-resistant, soft and elastic, and has good warmth retention. The velvet on the fabric is clear and round, and the luster is soft and even. Fabrics for furniture upholstery, curtains, sofas, handicrafts, toys and other items. [0003] But such corduroy fabrics have the following disadvantages: [0004] (1) The strength is poor and it is easy to tear, especially the tear strength along the direction of the fleece is low; [0005] (2) During the wearing process, the elbows, necklines, cuffs, knees and other parts of the clothing that have been subjected to external friction for a long time, the fluff is easy to fall off; [0006] (3) It is inconvenient to wash and take care...

AI Technical Summary

Problems solved by technology

[0004] (1) The strength is poor and it is easy to tear, especially the tear strength along the direction of the fleece is low;

[0005] (2) During the wearing process, the elbows, necklines, cuffs, knees and other parts of the clothing that have been subjected to external friction for a long time, the fluff is easy to fall off;

[0006] (3) It is inconvenient to wash and take care of, and it is easy to wrinkle. It should not be scrubbed vigorously when washing, and it should not be pressed heavily when storing;

[0007] (4) The velvet feeling is not plump enough

However, in the usual high-temperature and high-pressure dyeing process, due to factors such as process parameters and the ratio of auxiliary agents, there are often unsatisfactory dyeing effects, damage to the strength of polyester-nylon composite corduroy, fabric softness that does not meet requirements, and poor hand feel. Defects such as poor tactility, inability to obtain certain specific napping effects, etc.