Supercharge Your Innovation With Domain-Expert AI Agents!

Novel Ecotan leather tanning process

A leather product and tanning technology applied in the new Ecotan leather tanning process to achieve low cost and high economic value

Inactive Publication Date: 2021-11-30
广州施华科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention can well solve the problem of tanning, and can also well deal with the problems caused by production

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Novel Ecotan leather tanning process
  • Novel Ecotan leather tanning process
  • Novel Ecotan leather tanning process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This embodiment provides a new Ecotan leather tanning process, the process comprising the steps of:

[0041] (1) Extract tanning from plants to obtain plant tannins as tanning preparations;

[0042] (2) The process of immersing, brutal, dispel, and soaked;

[0043] (3) Add the pick-up 10-15 wt% of the acid skin obtained by adding step (2) to pre-tanning; then pressing the water, returning water, neutralization Further, 20-40 wt% of the tannin and 5-15% fatal fats were taken, and the filling of the skin and leather products were performed.

[0044] (4) The leather products obtained by step (3) are used as organic fertilizer raw materials for agriculture.

Embodiment 2

[0046] This embodiment provides a new Ecotan leather tanning process, the process comprising the steps of:

[0047] (1) Grinding the chestnut, forming wood chips, adding hot water to extract, using 80-100 mesh sieve filtration, obtaining the filtrate, purified, and again using 80-100 mesh screen filtration, filtrate, spray drying, to obtain the tanning preparation;

[0048] (2) 1x weight of cold water was added to the skin for 24 hours, then the pneumatic grafting agent was added to the gray skin, then the gray skin, then the gray skin, added to the gray skin weight. 2% of the pendant for 30 minutes; the pH of the solution was adjusted with an acid adjusted for 8 hours, and it became acids;

[0049] (3) Add the pick-up 10 wt% of the pickled skin 10 wt% obtained from the pickled skin obtained by the step (2) to pre-tanning; then squeezing, returning water, neutralization, Take the tannin 40 wt% of the tannyl and 15% of the fat-lipid to carry out retanning filled to obtain a skin an...

Embodiment 3

[0052] This embodiment provides a new Ecotan leather tanning process, the process comprising the steps of:

[0053] (1) Grinding the solid wood, forming wood chips, adding hot water to extract, using 80-100 mesh sieve filtration, resulting in the filtrate to concentrate to a tannin content of 65%, then purified, then use 80-100 mesh screen filtration The filtrate is sprayed and dried to give the brown crystal to form the tanning formulation for leather use.

[0054] (2) 150% cold water of the sore amount of cold water was added to the skin for 24 hours, and then the pneumatic grafting agent was added to the gray skin, and the gray skin was formed, then the gray skin was added. 3% of the gray skin weight for 20 minutes; the pH of the solution was adjusted with an acid adjusted for 4 hours, and the acid was obtained.

[0055] (3) Take the cold water and 10% of the salt into the drum into the drum for 15 minutes, mix well and uniformly forming saline, adding the like weight of the ac...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a novel Ecotan leather tanning process. The process comprises the following steps of: extracting tannin from plants to obtain vegetable tannin which is used as a tanning agent; subjecting raw hide to water soaking, liming, deliming and pickling to obtain pickled hide; adding a tanning agent, water and other auxiliaries are into the pickled hide for tanning so as to obtain leather crust and leather product waste; and applying leather product waste as an organic fertilizer raw material to agriculture. The novel Ecotan leather tanning process disclosed by the invention has the beneficial effects that the tanning agent is prepared from plant extracts and is environment-friendly and harmless; a produced product can meet environmental protection requirements, and is free of metal and any dangerous substance; the leather waste can be used for producing the organic fertilizer, so an economic value is high; the raw hide is adopted as the raw material, and since the raw hide is waste generated in the meat industry, cost is low; and the raw hide is pre-tanned and retanned through vegetable tannin, and fat liquoring is performed by using proper grease, so biologically circulating leather meeting use requirements can be obtained.

Description

Technical field [0001] The present invention belongs to the field of leather processing, and in particular, the present invention relates to a new ecotan leather tanning process. Background technique [0002] At present, the main tanning means of leather is traditional chrome, and is partially brocine. The environmentally-friendly chromium-free tanned tanning agent is zirconium, aluminum, aldehyde, etc. containing metal, a certain risk of dangerous substances. Moreover, some waste in the post-production is difficult to handle, even if biodegradation, there will be certain resources, low economic benefits, and do not reach the real cyclic. Today, consumers are more concerned about harmless, durable, reusable products. Leather producers not only need to face customers, but also need to face the pressure from environmentally friendly. The traditional system of the leather industry is facing chrome, heavy metals, waste and other issues, it is difficult to solve. [0003] In view of t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C14C3/10C14C1/04C14C1/08C14C1/06C14C3/28C14C3/14C05F11/00
CPCC14C3/10C14C1/04C14C1/08C14C1/06C14C3/28C14C3/14C05F11/00
Inventor 安东尼奥
Owner 广州施华科技有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com