Method for improving blackness of plate surface of sheared sheep garment product

Abstract

The invention relates to the technical field of leather processing, and discloses a method for improving the blackness of the plate surface of a sheared sheep garment product, which comprises the steps of tanning, wool opening, retanning, wool dyeing, plate dyeing and the like. In the tanning process, leather is put into a rotary drum, water and alkaline earth metal oxide are added for rotation, a first chemical material is added for rotation, formic acid is added for rotation, a chrome tanning agent and an aluminum tanning agent are added for rotation, sodium formate is added for rotation, baking soda is added for rotation, and then drainage is conducted. According to the method, the blackness of the plate surface of the sheared sheepskin garment product can be ensured, and compared with a traditional production method, the used dye is less, so that the treatment difficulty of the generated wastewater is further reduced while the cost is reduced; the product produced by the method disclosed by the invention is uniform in color and full in chromaticity, and meets the market and customer requirements.

Description

technical field [0001] The invention relates to the technical field of leather processing, in particular to a method for improving the blackness of the board surface of sheep shearling clothing products. Background technique [0002] Sheep-cut velvet is a name for the fabric that has been cut from cashmere. The fabric is usually flat and even, and then subjected to anti-corrosion treatment, and then dyed and processed into sheep-cut velvet carpets, cushions, cushions, clothing, etc. [0003] The current sheep shearing clothing has problems such as high cost and low absorption rate of black dyes in the production process, which leads to the low blackness of the black products in the sheep shearing clothing products. The low level makes heavy treatment in the finishing stage to achieve the required blackness. In this process, a large amount of dyes will be added to the dyeing process, which will not only greatly increase the production cost, but also increase the difficulty of...

AI Technical Summary

Problems solved by technology

[0003] The current sheep shearing garments have problems such as high cost and low absorption rate of black dye in the production process, which leads to the low blackness of the board surface of the black products in the sheep shearing clothing products, and the blackness of the board surface is relatively low. Low makes it necessary to do heavy treatment in the finishing stage in the later stage to achieve the required blackness. This process will add a lot of dyes to the dyeing process, which will not only greatly increase the production cost, but also increase the difficulty of sewage treatment.

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