Environment-friendly raw skin preservative and preparation method thereof

A preservative and environment-friendly technology, applied in the field of low-salt raw hide preservatives, to achieve the effects of reducing high TDS and chloride pollution, achieving cleanliness, and expanding new horizons

Active Publication Date: 2013-06-05
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are no patents and literature reports about the research on polymers such as PVA in the field of protein preservation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] First weigh 5kg sodium chloride, 1.5kg polyvinyl alcohol-25000, 1.5kg polyethylene glycol-6000, 0.5kg polypropylene glycol-2000, 0.5kg polytetrahydrofuran ether glycol-2000, 0.2kg polyacrylamide, and then The raw materials are evenly mixed and crushed into powder to obtain an environment-friendly raw hide preservative. Apply this preservative evenly on the meat surface of 100kg of fresh sheepskin, and then fold the skin and meat surface tightly together to have a good antiseptic effect.

Embodiment 2

[0021] First weigh 5kg sodium chloride, 1.5kg polyvinyl alcohol-35000, 1.5kg polyethylene glycol-4000, 0.5kg polypropylene glycol-1000, 0.5kg polytetrahydrofuran ether glycol-1000, 0.2kg polyacrylamide, and then The raw materials are evenly mixed and crushed into powder to obtain an environment-friendly raw hide preservative. Apply this preservative evenly on the meat surface of 100kg of fresh sheepskin, and then fold the skin and meat surface tightly together to have a good antiseptic effect.

Embodiment 3

[0023] First weigh 5kg sodium chloride, 3kg polyvinyl alcohol-25000, 3kg polyethylene glycol-6000, 0.1kg polypropylene glycol-2000, 0.1kg polytetrahydrofuran ether glycol-2000, 0.1kg polyacrylamide, and then mix the raw materials Evenly and pulverized into powder, the environmental protection raw hide preservative is obtained. Apply this preservative evenly on the meat surface of 100kg of fresh sheepskin, and then fold the skin and meat surface tightly together to have a good antiseptic effect.

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PUM

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Abstract

The invention discloses an environment-friendly raw skin preservative and a preparation method thereof. The preservative comprises the following component raw materials in percentage by weight: 42-61% of sodium chloride, 16-27% of polyvinyl alcohol, 16-27% of polyethylene glycol, 0.5-5% of polypropylene glycol, 0.5-5% of polytetrahydrofuran ether glycol and 0.5-2% of polyacrylamide, and the sum of weight percentages is 100%, wherein the molecular weight of polyvinyl alcohol is 25000-35000, the molecular weight of polyethylene glycol is 1000-10000, the molecular weight of polypropylene glycol is 400-2000, and the molecular weight of polytetrahydrofuran ether glycol is 600-2000. The preservative provided by the invention has small usage amount, is safe and nontoxic and can be biologically degraded, the total dissolved solids (TDS) and chloride pollution in tanning waste water can be greatly lowered, and no negative effect is produced on following tanning process.

Description

technical field [0001] The invention belongs to the technical field of leather preservatives, and in particular relates to a novel non-toxic, environment-friendly, biodegradable and low-salt raw leather preservative with good antiseptic effect. Background technique [0002] In tanning, hides and skins are usually stored and transported for a period of time before being put into production. The raw skin contains 60% to 70% water and 25% to 30% protein, which provides a good growth and reproduction environment for bacteria. If anti-corrosion measures are not taken during the preservation process, the original hide will rot due to bacterial erosion and the action of its own "autolytic enzyme". Especially in the process of immersing raw hides in water, when the temperature is high, a large number of bacteria multiply rapidly and corrode the raw hides. The mild ones will affect the quality of the finished leather, and the severe ones will cause the hides to rot, thereby causing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C14C9/00C14C1/04C14C1/00
Inventor 林炜安然穆畅道
Owner SICHUAN UNIV
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