Dyeing device and dyeing process for leather fabric

Abstract

The invention discloses a leather fabric dyeing device and a dyeing process, and belongs to the technical field of leather fabric printing and dyeing. A group of pulp sucking and spraying assemblies which are oppositely arranged are mounted in a dyeing box, and each pulp sucking and spraying assembly is composed of a plurality of flat annular return pipes which are distributed in an array and a plurality of pulp sucking bags which slide on the end wall of the flat annular return pipes; a plurality of slurry suction bags are magnetically sucked by an annular guide rail mounted in the flat annular return pipe to synchronously move and circularly reciprocate along the flat annular return pipe, so that slurry is stirred, broken and solidified, the flowability of the slurry is enhanced, and the permeability of the slurry is promoted on one hand, and on the other hand, the slurry suction bags continuously suck the slurry in the annular movement process, and the slurry is continuously sucked at the position close to leather; by means of the magnetic attraction approaching performance of the magnetic pulp squeezing pieces on the inner sides of the two sets of pulp suction bags which are oppositely arranged, the magnetic pulp squeezing pieces move downwards to squeeze and spray out pulp in the pulp suction bags, the pulp with certain impact force can permeate into grains of the leather fabric more easily, and therefore the dyeing effect of the leather fabric is further improved.

Description

technical field [0001] The invention relates to the technical field of leather fabric printing and dyeing, and more particularly, to a dyeing device and a dyeing process for leather fabrics. Background technique [0002] Leather fabrics are composed of natural protein fibers tightly woven in three-dimensional space. The surface has a special grain layer, which has natural grain and luster, and feels comfortable. During the processing of leather fabrics, it needs to be dyed. deal with. [0003] Dyeing and sizing is an important process in the leather fabric industry and occupies an important position. It can improve the appearance of leather, adapt it to the current popular style, reflect the diversity of colors, meet the needs of individual customization, and improve the performance and maximize them. The added value can meet the needs of various uses. [0004] Different from other textile fabrics, the end faces of leather fabrics have grain and luster, that is, there are ...

AI Technical Summary

Problems solved by technology

During printing and dyeing, the slurry is applied to the outer surface of the leather fabric, while the existing common printing and dyeing operations only apply the slurry to the surface. For some finer and deeper cracks, the slurry is difficult to penetrate into the leather easily In the micro-grains of the fabric, it is easy to cause uneven dyeing of leather fabrics

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