Foam dyeing method and device for towel fabric

Abstract

The invention provides a foam dyeing method and device for a towel fabric. The method comprises the following steps: guiding a towel fabric to be dyed through four dye vats in sequence respectively by using a plurality of cloth guide rollers, wherein before the towel fabric to be dyed passes through each dye vat, the looped pile of the towel fabric to be dyed is brushed in an oriented manner through corresponding brush rollers respectively, and a dyeing roller and a foaming device are arranged in each dye vat; when the towel fabric to be dyed passes through the dye vats, conveying fine dye liquor foam generated by the foaming device to the towel fabric to be dyed through the dyeing roller to realize foam dyeing. By adopting the foam dyeing method and device provided by the invention, the problems of high dyeing bath ratio, excessively high water consumption and excessively high energy consumption in the conventional process can be solved, and heterochromatic colorful effects are achieved on the front and back side faces of the same looped pile on the towel fabric.

Description

technical field [0001] The invention relates to a dyeing process, in particular to a foam dyeing method and device for towel fabric. Background technique [0002] Because towel fabric has special yarn loops and loose tissue structure, it is generally dyed with vat dyes by exhaust dyeing. However, the dip-dyeing process has poor reproducibility, high energy consumption and low production capacity. Moreover, in the process of refining, bleaching and dyeing, it is necessary to use a large amount of caustic soda, soda ash and other alkaline agents to obtain the desired effect. In this way, not only will the cotton fibers of the towel fabric be damaged, but also the waxy substance on the surface of the fibers will be excessively lost, and the weight loss rate is high, resulting in rough hand feeling, which needs to be compensated by subsequent softening treatment. In addition, the process wastewater generated in the above-mentioned production process has a high pH value, result...

AI Technical Summary

Problems solved by technology

[0003] However, whether it is dyeing of vat dyes or overflow dyeing of reactive dyes, since the dyeing process is to perform infiltration dyeing on the whole towel fabric, not only the bath ratio is large, the water consumption is large, the waste water produced is large, and the energy consumption of subsequent drying is high. Large, and a large amount of residual dye penetrates into the ground warp and weft under the loops of the towel fabric, which is not easy to clean, resulting in residual dye overflowing when the finished towel is in use, which is neither safe nor beautiful and comfortable, and is likely to cause consumer dissatisfaction. Dislikes and worries of pure cotton or rayon towels at the beginning of use

In addition, in fact, a large number of towel fabrics used for towel quilts, pajamas, bath towels and face sweating are dyed light colors in most cases. Produced under certain process conditions, resulting in excessive consumption of dyes, production water, drying energy consumption, etc.

Images