Method for repairing abnormal color spots and color patterns of nylon cloth

Abstract

The invention relates to a method for repairing abnormal color spots and color patterns of nylon cloth, and belongs to the technical field of nylon cloth dyeing. The method comprises the following steps: unreeling abnormal nylon grey cloth, repairing color, fixing the color, dewatering, drying, performing in-process inspection, and shaping. Compared with the conventional color repairing technology, the method provided by the invention has the advantages as follows: under the condition that fading is not required, color repairing can be completed only by once dipping treatment, so that a lot of dyeing water is saved and influence on the quality of the cloth is relatively small; the secondary bleaching and dyeing process after fading is omitted, so that the color repairing time is greatly shortened, the using amounts and the types of dye, auxiliary agents and other chemical reagents are reduced, and the sewage discharge amount is reduced; the process of repairing the color spots and the color patterns of the conventional nylon cloth are effectively shortened and the production cost is significantly reduced; therefore, the method can be popularized and applied in the field.

Description

technical field [0001] The invention belongs to the technical field of dyeing and processing of nylon cloth, and in particular relates to a method for repairing and treating abnormal stains and stains of nylon cloth. Background technique [0002] During the printing and dyeing process of nylon cloth, due to the differences in the properties of the dyes, the poor adaptability of the equipment to the dyes, and the improper setting of process parameters, there may be problems such as competing dyeing, color flowers, and color traces, and printing and dyeing defects need to be repaired. [0003] The traditional color repair process is generally: cloth distribution→color stripping→secondary bleaching and dyeing→dehydration→drying inspection→setting, that is, the color of the abnormal cloth must be faded (peeled), and then the required color should be bleached and dyed again. The process includes: distributing: rewinding and distributing the abnormal cloth to the cloth car; stripp...

AI Technical Summary

Problems solved by technology

[0004] Although the traditional color repairing process can achieve the restoration of abnormal gray fabrics, it has the main disadvantage: if there is a mistake in bleaching and dyeing, all the colors need to be bleached and then dyed again, which not only prolongs the bleaching and dyeing time, but also increases the processing and chemical process. The amount of additives used, and will produce multiple bleaching and dyeing sewage, and the quality of the cloth obtained by the second bleaching and dyeing is not as good as the quality of the initial bleaching and dyeing

[0005] However, in the prior art related to cloth color repair, there is no repair method for abnormal color stains of nylon cloth.

For example, the application number is "200910099745.7", and the Chinese patent application titled "Color Repair Method of Cotton Knitted Gray Cloth on a Sizing Machine" discloses a method of color correction of cotton knitted gray cloth on a Sizing Machine. The main steps are: repairing liquid ingredients - gray fabric preparation - padding and repairing liquid - setting machine baking - washing - drying - napping - shaping, which is mainly for color correction of cotton knitted gray fabric; for example, the application number is "201610452953.0", and the invention name is "a light and thin type Dyeing method for preventing color stains, white spots, and floating colors on the surface of fabrics", which is mainly to prevent color stains, white spots, and floating colors on light and thin fabrics, and proposes a dyeing scheme that can prevent slight blemishes on light and thin fabrics. The preventive effect on fabrics with medium density and above or with large dyeing defects is not ideal, and it is not suitable for the repair of color defects in nylon fabrics

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