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A leather printing and dyeing process

A printing and dyeing process, leather technology, applied in the processing of textile materials, textile processing machine accessories, textiles and papermaking, etc., can solve the problem of uneven dyeing of leather

Active Publication Date: 2021-09-14
南通斯雅特纺织品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Different from textile fabrics, there are cracks on the leather. During printing and dyeing, the dye is applied to the outer surface of the leather. However, the existing common printing and dyeing operation only applies the dye to the surface. Cracks, dyes are difficult to absorb and penetrate into the leather surface easily, and it is easy to cause uneven dyeing of the same piece of leather

Method used

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  • A leather printing and dyeing process
  • A leather printing and dyeing process
  • A leather printing and dyeing process

Examples

Experimental program
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Embodiment

[0039] see Figure 1-2 , take the leather and soak it in pure water for 1-1.5h, wash the soaked leather with water, and then steam the washed leather for 0.5-1h, install the leather winding parts in the dyeing pool loaded with dye, The leather is pulled left and right by leather winding parts, and a pair of moving plates 1 distributed above and below the leather are arranged inside the dyeing pool. A magnetic field is applied to attract the upper elastic extrusion and repel the lower elastic extrusion, forcing the upper and lower elastic extrusions to squeeze the upper and lower ends of the leather, and the elastic extrusion absorbs the dye when it contacts the leather When extruded, the air will be released on the end of the leather to promote the dye to penetrate into the cracks of the leather. Repeatedly start and cut off the magnetic field to realize multiple extrusion operations, and cooperate with the leather to move back and forth on the leather winding piece. After dy...

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Abstract

The invention discloses a leather printing and dyeing process, which belongs to the technical field of textile leather printing and dyeing. By adding a leather winding part and an elastic extruding part, when printing and dyeing leather, the leather winding part is used to wrap the leather left and right, and the leather It can be dyed during the friction activity with the leather winding parts to improve the printing and dyeing permeability. At the same time, the use of the magnetic field makes the multiple elastic extrusions distributed up and down close to each other and makes impact contact with the upper and lower ends of the leather. The elastic extrusions are sucked The dye is released after contacting the leather, and the air is released on the end surface of the leather when it is squeezed, which further promotes the dye to penetrate into the cracks of the leather, improves the printing and dyeing effect, and shortens the printing and dyeing time.

Description

technical field [0001] The invention relates to the technical field of textile leather printing and dyeing, in particular to a leather printing and dyeing process. Background technique [0002] Leather dyeing is a complex physical and chemical process, which is the process of penetration and bonding of dye molecules to leather fibers, and is the total effect of physical and chemical effects. During the whole dyeing process, adsorption, diffusion, penetration and fixation interact and alternate with each other. Dyeing is an important process in the leather industry and occupies an important position. It can improve the appearance of leather, adapt it to the current fashion style, reflect the diversity of colors, meet the needs of individual customization, improve the performance, and maximize their additional value. value, to meet the needs of various purposes. [0003] Different from textile fabrics, there are cracks on the leather. During printing and dyeing, the dye is a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06B3/18D06B23/04D06B23/20D06B23/22
CPCD06B3/18D06B23/04D06B23/205D06B23/22
Inventor 袁彬曹莲红张裕
Owner 南通斯雅特纺织品有限公司
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