A kind of dyeing method of natural cationic dye solution and tussah silk

Abstract

The invention provides natural positive ion dye liquor and a tussah silk dyeing method. The natural positive ion dye liquor is prepared from the following ingredients in mass content: 0.2 to 1.0% of berberine, 0.01 to 0.02% of bleaching powder, 0.1 to 0.5% of sulfuric acid, 0.3 to 0.6% of leveling agent, 0.8 to 1.2% of sodium acetate and the balance of water. According to the natural positive iondye liquid disclosed by the invention, the berberine is utilized as dyestuff, so that color of the dyed tussah silk is bright; the certain amount of bleaching powder and sulfuric acid are utilized tomodify the berberine, so that the prepared natural positive ion dyestuff can improve washing-resisting color fastness and wear-resisting color fastness. Experimental results show that after the tussahsilk is dyed by the natural positive ion dye liquor disclosed by the invention, the washing-resisting color fastness can reach 4 to 5 levels, and the wear-resisting color fastness can reach 4 to 5 levels.

Description

technical field [0001] The invention relates to the technical field of dyes, in particular to a natural cationic dye solution and a dyeing method for tussah silk. Background technique [0002] For a long time, synthetic dyes such as acid dyes, neutral dyes and reactive dyes have been mainly used in the dyeing of silk fabrics, but it has been found that acid dyes have poor color fastness, especially wet treatment fastness, and neutral dyes have better fastness than acid dyes, but There are few bright colors in the chromatogram. Reactive dyes are the only dyes that combine with silk fibers by covalent bonds. They have good color fastness and bright colors, but it is difficult to peel off and correct when the shades do not match. Synthetic fibers and synthetic dyes have the potential to cause skin diseases in humans. [0003] Natural dyes and natural fibers have the advantages of non-toxic, harmless, and pollution-free. Silk dyed with natural dyes has a natural, elegant, and n...

AI Technical Summary

Problems solved by technology

[0004] Although natural dyes have the advantages of non-toxic, harmless, and pollution-free, natural plant dyes have a complete color spectrum, but the colors are not bright enough, and the washing and light fastness of many varieties are not satisfactory, and their concentration and hue are also unstable.

Images