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Processing method of cowhide sofa leather with low VOC (volatile organic compounds) volatilization

A processing method and technology for sofa leather, applied in leather manufacturing, leather softening, leather drying, etc., can solve the problems of heavy product odor, high total carbon emission, non-compliance with environmental protection requirements, etc.

Active Publication Date: 2018-04-20
温州顺亨皮业有限公司
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Problems solved by technology

The following problems generally exist in the existing cowhide sofa leather: the total carbon emission (total organic volatile matter) is too high, which does not meet the environmental protection requirements
[0003] Existing leather processing methods need to use a large amount of additives, which will produce a large amount of volatile organic compounds, and the product has a heavy odor. Therefore, it is necessary to design a processing method for cowhide sofa leather with low VOC volatilization

Method used

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  • Processing method of cowhide sofa leather with low VOC (volatile organic compounds) volatilization
  • Processing method of cowhide sofa leather with low VOC (volatile organic compounds) volatilization
  • Processing method of cowhide sofa leather with low VOC (volatile organic compounds) volatilization

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Embodiment Construction

[0069] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0070] The processing method of the cowhide sofa leather with low VOC volatilization comprises the following steps:

[0071] a, depilation: the rawhide is depilated one by one by a hair pushing machine; in the present embodiment, the hair pushing machine adopts existing equipment available on the market;

[0072] b, softening: the raw hide after depilation is softened under the action of softening enzyme, the amount of softening enzyme is 1-2% of the weight of raw hide, the softening temperature is 28-34 ° C, and the softening time is 20-30min; in this embodiment , softening the rawhide after depilation under the action of softening enzyme, the softening enzyme dosage is 1.5% of the raw hide weight, the softening temperatu...

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Abstract

The invention provides a processing method of cowhide sofa leather with low VOC (volatile organic compounds) volatilization, which aims to solve the technical problems of heavy odor of products and the like caused by a large quantity of volatile organic compounds generated when a large quantity of accessory ingredients need to be used in an existing leather processing method. The processing methodof the cowhide sofa leather with low VOC volatilization comprises the following steps of (a) unhairing; (b) softening; (c) tanning; (d) retanning; (e) rinsing; (f) dyeing; (g) greasing; (h) wringing;(i) performing vacuum drying; (j) naturally hanging and drying; and (k) regaining moisture, milling and coating. The processing method has the advantage of good environmental friendliness of products.

Description

technical field [0001] The invention relates to a processing method of cowhide sofa leather with low VOC volatilization. Background technique [0002] VOC is the English abbreviation of volatile organic compounds (volatileorganiccompounds). VOC in the general sense is command volatile organic compounds; but the definition in the sense of environmental protection refers to a type of active volatile organic compounds, that is, the type of volatile organic compounds that will cause harm. The existing cowhide sofa leather generally has the following problems: the total carbon emission (total organic volatile matter) is relatively high, which does not meet the environmental protection requirements. [0003] Existing leather processing methods need to use a large amount of auxiliary agents, which will produce a large amount of volatile organic compounds, and the product has a heavy odor. Therefore, it is necessary to design a processing method for cowhide sofa leather with low VO...

Claims

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Application Information

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IPC IPC(8): C14B1/02C14C1/08C14C3/06C14C3/28C14C15/00C14C9/02C14B1/58C14B1/40C14C11/00D06P1/00
CPCC14B1/02C14B1/58C14B17/00C14B17/14C14C13/00C14C15/00
Inventor 宓林飞
Owner 温州顺亨皮业有限公司
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