Cyclic utilization method for cotton fabric degreasing and bleaching solution and device thereof

Abstract

The invention discloses a cyclic utilization method for a cotton fabric degreasing and bleaching solution and a device thereof. The method comprises the steps of recycling use of boiling bleaching high-temperature water; recycling use of warm water; recycling use of normal-temperature water; supplementary use of the recycled warm water after the boiling bleaching high-temperature water is recycledand used several times; supplementary use of the recycled normal-temperature water after the warm water is recycled several times; replacement with new soft water after the normal-temperature water is recycled several times. Because the boiling bleaching high-temperature water, the warm water and the normal-temperature water are subjected to cyclic use in the degreasing and bleaching process of cotton fabric separately, the warm water can be recycled in the high-temperature boiling bleaching process, the normal-temperature water can be recycled in the cleaning process with the warm water, andtherefore the boiling bleaching high-temperature water, the warm water and the normal-temperature water are fully recycled and utilized. By means of the cyclic utilization method for the cotton fabric degreasing and bleaching solution, the cyclic utilization of resources is achieved, the consumption and emission of water resources are reduced from a source, the use and emission of chemical auxiliaries are reduced, the consumption of energy is reduced, and the method belongs to a technology which has the advantages of saving energy and water, reducing discharge and consumption and achieving clean production.

Description

technical field [0001] The invention relates to a cotton fabric debleaching process method, in particular to a cotton fabric debleaching liquor recycling method and device thereof. Background technique [0002] The debleaching process of cotton fabrics, especially medical degreasing gauze and cotton non-woven fabrics, degreasing and bleaching is completed in the warp beam bleaching machine. The existing debleaching process is: put the rolled gray cloth into the warp beam and boil machine, add water and chemical additives, heat up, boil and bleach at 100-105 degrees for 1.5-2 hours, discharge at high temperature, then wash with hot water, and finally wash with normal temperature water-take out and dry. [0003] There are three kinds of water in the whole process: one is boiling and bleaching high-temperature water, the water discharged after degreasing and bleaching contains a large amount of residual chemical additives, and the heat is high at the same time, and the water te...

AI Technical Summary

Problems solved by technology

Degreasing and bleaching discharge water (high-temperature water) contains a large amount of available refining agents, alkali agents, and hydrogen peroxide, which are not recycled and are directly discharged to the sewage treatment plant, which increases the burden on the sewage treatment system

Images