Dyeing device with flowing dyeing liquor for leather processing

Abstract

The invention discloses a dyeing device with flowing dyeing liquor for leather processing. The dyeing device with the flowing dyeing liquor for leather processing comprises a dyeing cylinder, a dyeing liquor tank, a brush dyeing device, a liquor outlet, a circulating pump, a dyeing agent adding and mixing barrel, a liquor returning tube, a showering tube, spraying heads, a liquor injecting opening, a leather winding roll and a leather discharging roll; and the dyeing liquor tank is arranged at the bottom of the dyeing cylinder. The dyeing device with the flowing dyeing liquor for leather processing is reasonable and simple in structure and low in production cost, and facilitates dyeing; a soft brush can be used for carrying out brush dyeing on a special grain layer on the surface of leather, the dyeing quality of the grain layer on the surface of the leather is improved, dyeing liquor in the dyeing liquor tank is circularly supplied to the top of the dyeing liquor tank through the circulating pump and then is sprayed through the spraying heads, flowing of the dyeing liquor in the dyeing liquor tank is facilitated, the force of contact between the dyeing liquor and the leather can be increased owing to flowing of the dyeing liquor, the dyeing speed is increased, in a dyeing liquor circulating process, the dyeing liquor is filtered through a filter, the content of a dyeing agent in the dyeing liquor is increase through the dyeing agent adding and mixing barrel, therefore, the cleanliness of the dyeing liquor and the concentration of the dyeing agent are ensured, and evenness of dyeing of the leather is improved.

Description

technical field [0001] The invention relates to the technical field of leather processing equipment, in particular to a dyeing device for flowing dyeing liquid for leather processing. Background technique [0002] Leather is denatured and non-perishable animal skin obtained through physical and chemical processing such as depilation and tanning. Leather is composed of natural protein fibers tightly woven in three-dimensional space. There is a special grain layer on the surface, which has natural grain. Texture and gloss, feel comfortable. Leather needs to be dyed during the production and processing process, but the existing leather dyeing device uses stirring and dyeing of leather. During the stirring process, the special particle layer on the leather surface is likely to be worn due to friction, which affects the quality and appearance of the leather, and Impurities are likely to be produced during the stirring process, which affects the cleanliness of the dyeing solution...

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Problems solved by technology

[0003] The object of the present invention is to provide a kind of dyeing device for the flow of dyeing liquid for leather processing in order to solve the above problems, which solves the problem that the existing leather dyeing device adopts stirring and dyeing of leather, and the leather surface is easily caused by friction during the stirring process. The wear of the granular layer affects the quality and appearance of the leather, and impurities are easily produced during the stirring process, which affects the cleanliness of the dyeing solution and the quality of leather dyeing

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