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Manufacturing technology for cattle hide tabby sofa leather

A manufacturing process, sofa leather technology, applied in the field of manufacturing process of yellow cowhide plain sofa leather, to achieve the effect of improving the quality and grade of finished leather, simple process operation and high efficiency

Inactive Publication Date: 2020-01-03
周鑫樑
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the tanning agents currently used in tanning, the most widely used chrome tanning agent has good tanning performance and can endow the finished leather with excellent comprehensive properties. Its chrome-tanned wet-blue leather has high shrinkage temperature and stable physical and chemical properties. The gradual increase in prices and labor costs means that tanning companies have to pay more cost and energy to solve these problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] A kind of manufacturing technology of yellow cowhide plain weave sofa leather comprises the following steps:

[0020] 1). Skin selection: Select cattle wetblue hides with large width, good quality, uniformity and uniform texture, and squeeze the wetblue hides to stretch and evenly peel them.

[0021] 2). Pickling and degreasing:

[0022] Under the temperature condition of 40℃, rinsing and detanning with oxalic acid in the pickling degreasing liquid will slightly remove the chromium on the surface of the wet blue leather, so that the grain surface of the leather base is fine and the surface is clean; the pH of the leather base is adjusted with formic acid to make the leather Keep the pH inside and outside the billet consistent; keep pH = 3.0-3.5, and rotate for 60 minutes.

[0023] Further, the acid washing and degreasing solution includes the following components in terms of mass percentage:

[0024] 200% water, 1.0% oxalic acid, appropriate amount of formic acid, 2...

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PUM

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Abstract

The invention discloses a manufacturing technology for cattle hide tabby sofa leather. The manufacturing technology comprises the following steps of hide selection, pickling degreasing, softening, chrome retanning, neutralization, retanning dyeing, washing oiling and after treatment. The manufacturing technology is easy to operate and control and high in efficiency, the manufactured tabby sofa leather is plump, soft, mellow and full in hand feeling and high in resilience, and the finished leather quality and grade are improved.

Description

technical field [0001] The invention relates to the technical field of leather manufacturing, in particular to a manufacturing process of yellow cowhide plain weave sofa leather. Background technique [0002] Leather products have been highly sought after because of their good physical and chemical properties, appearance, and comfortable feel. The tanning process is the key in the leather manufacturing process, only through tanning can the leather be turned into leather. Among the tanning agents currently used in tanning, the most widely used chrome tanning agent has good tanning performance and can endow the finished leather with excellent comprehensive properties. Its chrome-tanned wet-blue leather has high shrinkage temperature and stable physical and chemical properties. The gradual increase in prices and labor costs means that tanning companies have to pay more cost and energy to solve these problems. Upgrading the grade of crust leather and improving efficiency is an...

Claims

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Application Information

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IPC IPC(8): C14B1/02C14B1/44C14B1/54C14B1/58C14C1/08C14C3/06C14C3/16C14C3/28C14C11/00
CPCC14B1/02C14B1/44C14B1/54C14B1/58C14C1/08C14C3/06C14C3/16C14C3/28C14C11/00
Inventor 周鑫樑汪周星周清山王力武
Owner 周鑫樑