Lotus leaf dyestuff and its extraction method and method of dyeing wool and wool fabric using said

Abstract

A lotus leaf dye is extracted from lotus leaves. Its extracting process is also disclosed. A method for using said lotus leaf dye to dye wool or wool fabric includes ecological pretreating, modifying wool by the composite enzyme consisting of subtilisin and papain, and mordant dyeing. Its advantage is high dyeing effect.

Description

Technical field:

[0001] The invention relates to a lotus leaf vegetable dye for dyeing wool and woolen fabrics and an extraction method thereof, and a dyeing method for dyeing wool and woolen fabrics with the lotus leaf dye. It belongs to the technical field of dye and its extraction method and textile dyeing and finishing. Background technique:

[0002] Some raw materials, intermediates, or some dyes themselves of synthetic dyes commonly used for dyeing wool and woolen fabrics are carcinogens, which not only seriously pollute the environment, but also directly harm the wearers and producers, and are banned. Synthetic dyes that are not prohibited are mainly derived from petroleum. In the long run, resources are becoming increasingly scarce and do not meet the requirements of sustainable development. For this reason, the application of natural dyes in textiles has received more attention in recent years, cleaner production is booming, and green and environmentally friendly p...