A safe and environmentally friendly water-emulsion type rotating drum degreaser, preparation method and application

Abstract

The invention belongs to the field of animal fur processing technology, and more specifically relates to a safety environmental-friendly water-emulsified drum degreasing agent, and a preparation method and applications thereof. The safety environmental-friendly water-emulsified drum degreasing agent is prepared from following raw materials, by weight, 10 to 50 parts of a solvent naphtha, 5 to 20 parts of an emulsifier, 1 to 10 parts of a stabilizing agent, and 20 to 100 parts of deionized water; wherein the solvent naphtha is one or a mixture of white spirit D60, tasteless turpentine, and dodecane; the emulsifier is one or a mixture of AEO9, AEO7, dodecyl amidopropyl betaine, and coconutt diethanol amide; and the stabilizing agent is 1,2-propanediol or hexadecanol, or a mixture of 1,2-propanediol and hexadecanol. The safety environmental-friendly water-emulsified drum degreasing agent is capable of removing grease of fine leather after oil tanning, is excellent in degreasing capability, is helpful for obtaining of clean and smooth leather, is safe and friendly to the environment, is an environmental-friendly washing agent, and is convenient for using, and possesses no unpleasant smell.

Description

technical field [0001] The invention relates to the field of animal fur treatment technology, in particular to a safe and environment-friendly water-emulsion drum degreasing agent, a preparation method and an application. Background technique [0002] In the process of tanning or fur manufacturing, degreasing is a very critical process for raw hides and skins with high oil content. Only by removing the natural oil contained in the bare leather to a certain extent, can the collagen fibers be loosened, creating favorable conditions for the smooth progress of the subsequent tanning and other processes, and making the finished leather reach the ideal state, otherwise due to the natural oil contained in the leather plate According to water, it will make it difficult to carry out the subsequent tanning, fatliquoring, dyeing, finishing and other processes smoothly, resulting in stiff hand feeling of finished leather, strong greasy surface, and easy peeling off of the coating. Ther...

AI Technical Summary

Problems solved by technology

[0004] At present, drum degreasing agent and solvent-based degreasing agent are widely used, but solvent-based degreasing agents are either ODS solvents that can damage the ozone layer, or are toxic and harmful to the human body, or are flammable and explosive to the production environment. The cleaning solution also pollutes the environment and is not easy to handle

[0005] The existing commercially available drum degreasing agent is a dry-cleaning drum degreasing agent, which is directly mixed with wood chaff or sawdust, and then degreased in the drum in a manner of rolling wood chaff, so that no polluting aqueous solution will be produced, and Wood bran solid waste is easy to handle

[0006] However, the most widely used drum degreasing agent is tetrachlorethylene, which is harmful to the human body, destroys the ozone layer, and is not environmentally friendly. It has been banned by the European Union.

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