Cleaning method of wool fiber

Abstract

The invention relates to a cleaning method of wool fiber, which is mainly targeted at the cleaning of the wool fiber and pashm fiber. According to the cleaning method of the wool fiber provided by the invention, the wool fiber is subjected to circulated cleaning by a solution which is prepared by mixing an alcohol organic solvent in high proportion, a little water, and a wool washing agent, and oleophilic dirt on the wool fabric can be rapidly wetted and dissolved to clean the wool fiber more thoroughly. Not only is the loss of the wool fiber strength in the cleaning process greatly improved, but also the entanglement between the wool fibers is reduced, as well as the wool fiber cannot be puffed and felted, so that the yield of a combed wool strip is improved; the problems of incomplete wool cleaning, large wool fiber strength loss and high water consumption in a traditional wool fiber cleaning process are solved; the alcohol organic solvent used by the method provided by the invention is safe and nontoxic, and can be recycled; and the cleaning method greatly reduces water consumption, and is economical, energy-saving, safe and environment-friendly.

Description

technical field [0001] The invention relates to a method for cleaning wool fibers, mainly aiming at cleaning wool fibers and cashmere fibers. Background technique [0002] Conventional wool fiber cleaning is to use chemical and mechanical action to remove grease, sweat and some impurities on the wool fiber, so as to restore the original whiteness, looseness, softness and good elasticity of the wool fiber, and to ensure the smoothness of the wool fiber during processing. The processes of carding, spinning, weaving, dyeing and finishing are carried out smoothly. [0003] Wool fiber cleaning has always been using water as a cleaning agent. However, the long-term water supply and the discharged sewage after cleaning have been bothering people. Natural wool contains about 13% lanolin, and only about 50% of the water agent in the aqueous solution containing natural lanolin can be recycled. Water resources that cannot be recovered are usually discharged by drainage pipes, and th...

AI Technical Summary

Problems solved by technology

[0005] The open magazine "China Fiber Inspection", published date 1997 No. 11, titled "Research on Solvent Washing Containing Fat and Lint", mentioned the method of washing wool with solvent, although it uses the method of washing wool with solvent It can indeed play a role in saving water and washing wool, but its disadvantage is that there are many problems in the use of such organic solvents, such as petroleum solvents are flammable and have poor safety, and non-flammable halogenated hydrocarbon solvents are toxic Large, cannot be discharged at will, and needs to be circulated in a closed system. This type of organic solvent will inevitably be lost during use, and the cost is higher than that of water washing for high solvent recovery equipment.

[0006] The published magazine "Heilongjiang Textile", published date 1996, No. 67, titled "Protease Washing Wool Technology", mentioned the method of cleaning wool with protease, although it uses the neutral protease ASI398 added to the third washing tank to wash wool. The method of removing protein pollutants on the wool surface does improve the quality of the wool, but its shortcoming is that it does not fundamentally solve the problem of large water consumption in the wool