CN102268491A

CN102268491A - Biodegradable leather degreaser

Info

Publication number: CN102268491A
Application number: CN201110174219A
Authority: CN
Inventors: 陈志侠
Original assignee: ZHANGJIAGANG YIDA NEW BUILDING MATERIAL CO Ltd
Current assignee: ZHANGJIAGANG YIDA NEW BUILDING MATERIAL CO Ltd
Priority date: 2011-06-23
Filing date: 2011-06-23
Publication date: 2011-12-07

Abstract

The invention relates to a biodegradable leather degreaser which is mainly prepared from fatty alcohol polyethenoxy ether, coconut oil fatty acid dyadethanolamine, sodium ethoxylated alkyl sulfate, alkyl benzene sulfonate, sodium hydroxide, solvent and water. The degreaser has high stability, can be safely used in leather production processes of hogskin, cowskin, sheepskin and the like, can not influence the chemical and physical properties of the skin, is a biodegradable environment-friendly anionic-nonionic surfactant mixture, has the characteristics of obvious degreasing effect, low degreasing cost and the like, and is convenient to use.

Description

A kind of biology leather grease-removing agent of easily degrading

Technical field

The present invention relates to a kind of biology leather grease-removing agent of easily degrading, belong to leather and make manufacture field.

Background technology

In process hides or fur manufacturing processed, especially higher pachydermia or the fur of fat content, degreasing is very crucial operation, have only and take off contained natural fats and oils in the pelt a certain amount of, just can make collegen filament loose, opening passage creates favorable conditions smoothly for each operations such as back road tannings, make finished leather reach comparatively ideal state, otherwise, because the water repellency of contained natural fats and oils can not carry out operations such as back tanning, stuffing, dyeing, covering with paint smoothly, and causes the finished leather feel stiff in the leather, the surface oil soapy feeling is strong, and coating is easy to come off slurry.So, when the leather degreasing, just must select grease-removing agent preferably, so that high-quality leatherware in making.

At present, Chang Yong degreasing method has mechanical degreasing method, saponification method, emulsion process, solvent method and enzyme process etc.Machinery degreasing method is meant rawhide by power operations such as fleshings, removes hypodermic fat and makes intracutaneous fat body of gland and adipocyte be subjected to the mechanical presses effect destroyed, makes that the grease molecule is easier to be removed by the fat-free material effect; The saponification method degreasing is to form soaps with alkaline matter hydrolysate oils such as sodium hydroxide, yellow soda ash, and is soluble in water and be removed; The emulsion process degreasing is to use the tensio-active agent emulsified fat, makes the grease molecular dispersion in water and be removed; Solvent degreasing is with kerosene, sherwood oil, trieline, organic solvent dissolution intracutaneous greases such as methylene dichloride, toluene.

Kind, the trade mark of domestic skimmed prod are a lot, but exist bigger difference in aspects such as capability and performance and price, and the component of most of product is close, and just content is different with price.And the invention provides a kind of novel enzyme process degreasing method, and be to use lipase-catalyzed hydrolysate oil, perhaps destroy adipocyte plasma membrane with other enzyme, make the interior grease molecule of film easily be applied and remove.

It is high that this grease-removing agent has stability, can be used in leather process of manufacture such as pigskin, ox-hide and sheepskin safely, and can not influence the chemico-physical properties of skin itself, it is the easily environment-friendly type the moon-non-ionic surfactant mixture of degraded of a kind of biology, and degreasing effect is obvious, characteristics such as the degreasing cost is low, and is easy to use.

Summary of the invention

The present invention is achieved through the following technical solutions, and mainly is made up of fatty alcohol-polyoxyethylene ether, cocoanut fatty acid diethanolamide, ethoxylated alkyl sulfate, alkyl benzene sulphonate (ABS), sodium hydroxide, solvent and water.

Proportioning by its total solution weight is: fatty alcohol-polyoxyethylene ether 5%～15%; Cocoanut fatty acid diethanolamide 3%～5%; Ethoxylated alkyl sulfate 1%～3%; Alkyl benzene sulphonate (ABS) 1%～2%; Sodium hydroxide 0.1%～0.3%; Solvent 1%～2%; Soft water 50%～70%.

Embodiment

Get fatty alcohol-polyoxyethylene ether 8%; Cocoanut fatty acid diethanolamide 5%; Ethoxylated alkyl sulfate 3%; Alkyl benzene sulphonate (ABS) 2%; Sodium hydroxide 0.3%; Solvent 1%; Pour in 60% the soft water and stir.

The leather that best water is treated degreasing before the degreasing carries out prewashing, and then, suggestion is pressed degreasing process and immersed in the skim soln, please notes that liquor ratio is unsuitable excessive, and water consumption does not too greatly then reach best defatted concd, and poor effect is soaked 45min～60min, taking-up.Water is clear excessively after the degreasing.

Claims

1. biology leather grease-removing agent of easily degrading is characterized in that: this biology leather grease-removing agent of easily degrading mainly is made up of fatty alcohol-polyoxyethylene ether, cocoanut fatty acid diethanolamide, ethoxylated alkyl sulfate, alkyl benzene sulphonate (ABS), sodium hydroxide, solvent and water.

2. according to right 1 described a kind of biology leather grease-removing agent of easily degrading, by the proportioning of its total solution weight be: fatty alcohol-polyoxyethylene ether 5%～15%; Cocoanut fatty acid diethanolamide 3%～5%; Ethoxylated alkyl sulfate 1%～3%; Alkyl benzene sulphonate (ABS) 1%～2%; Sodium hydroxide 0.1%～0.3%; Solvent 1%～2%; Soft water 50%～70%.