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Leather printing and dyeing process

A printing and dyeing process, leather technology, applied in textile processing machine accessories, textile material processing, textiles and papermaking, etc., can solve problems such as uneven dyeing of leather

Active Publication Date: 2021-08-20
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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  • Leather printing and dyeing process
  • Leather printing and dyeing process
  • Leather printing and dyeing process

Examples

Experimental program
Comparison scheme
Effect test

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, and belongs to the technical field of textile leather printing and dyeing. By additionally arranging a leather winding piece and elastic extrusion pieces, when leather is printed and dyed, the leather winding piece is used for clamping and winding the leather leftwards and rightwards, and the leather is dip-dyed in the friction movement with the leather winding piece, so that the printing and dyeing permeability is improved; and meanwhile, under the action of a magnetic field, the multiple elastic extrusion pieces distributed up and down get close to each other and make impact contact with the upper end and the lower end of the leather, the elastic extrusion pieces suck dye and release the dye after making contact with the leather, and air overflows from the end face of the leather during extrusion, so that the dye is further promoted to permeate into cracks of the leather, the printing and dyeing effect is improved, and the printing and dyeing time is shortened.

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 Applications(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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