A method for dyeing black cashmere fibers or fabrics with natural plant pigments

Abstract

The invention relates to the technical field of cashmere fiber or fabric dyeing, and discloses a method for dyeing black cashmere fiber or fabric with natural plant pigments. The method comprises the following steps: (1) extracting walnut green peel pigment, gallnut pigment, yam pigment and green tea tea pigment respectively; (2) using a pre-dyeing pre-treatment solution to pre-dye cashmere fibers or fabrics; (3) according to Add walnut green skin pigment, gallnut pigment, yam pigment, green tea tea pigment, penetrating agent and non-ionic surfactant to the cashmere fiber or fabric that has been pretreated before dyeing at a bath ratio of 1:10 to 20 for dyeing; (4) washing and drying the dyed cashmere fiber or fabric. In the method, natural plant pigments are extracted from walnut green peel, gallnut, yam, and green tea leaves, and cashmere fibers or fabrics are dyed by using these natural plant pigments to obtain environmentally friendly black cashmere fibers or fabric products.

Description

A method for dyeing black cashmere fibers or fabrics with natural plant pigments technical field The present invention relates to cashmere fiber or fabric dyeing technical field, be specifically related to a kind of dyeing utilizing natural plant pigment Method for black cashmere fiber or fabric. Background technique [0002] Cashmere is a thin layer of fine wool that grows on the outer epidermis of the goat and covers the root of the goat's coarse hair. Cashmere is rare The special animal fiber, the reason why cashmere is very precious is not only because of its small output, but also because of its excellent quality quality and characteristics. Cashmere is a thin and curved fiber with an air layer in the middle, so it is light and soft; cashmere Much thinner than wool, cashmere fibers have small and smooth outer scales; cashmere has a high natural crimp and is closely arranged in spinning and weaving. Good cohesion and toughness. Cashmere is slender, light, soft...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for dyeing black cashmere fibers or fabrics using natural plant pigments to overcome the problem that the existing natural plant pigments in the prior art are difficult to dye cashmere fibers or fabrics into environmentally friendly black. Natural plant pigments are extracted from walnut green skin, gallnut, yam, and green tea leaves, and cashmere fibers or fabrics can be dyed with these natural plant pigments to obtain environmentally friendly black cashmere fibers or fabrics

Images