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Method for dyeing black cashmere fiber or fabric by using natural plant pigment

A technology of natural plant pigments and cashmere fibers, which is applied in the field of dyeing black cashmere fibers or fabrics with natural plant pigments, can solve the problems of dyeing cashmere fibers or fabrics into environmentally friendly black, and achieve the effect of high added value and less pollution.

Active Publication Date: 2021-08-13
WUHAN TEXTILE UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Method for dyeing black cashmere fiber or fabric by using natural plant pigment
  • Method for dyeing black cashmere fiber or fabric by using natural plant pigment

Examples

Experimental program
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Effect test

Embodiment 1

[0102](1) Extract walnut green peel pigment, gallnut pigment, yam yam pigment and green tea tea pigment respectively;

[0103] (2) Carry out pre-dyeing pretreatment to cashmere fiber or fabric by adopting pre-dyeing pre-treatment liquid, wherein, contain hydrogen peroxide solution, penetrant, acid protease and anionic surfactant in the pre-treatment liquid;

[0104] (3) According to the liquor ratio of 1:20, 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 after pre-dyeing pretreatment, carry out dyeing;

[0105] (4) Washing, soaping, washing and drying the dyed cashmere fibers or fabrics;

[0106] Wherein, the extracting method of walnut green peel pigment comprises the following steps:

[0107] A1. Peeling fresh walnuts to obtain fresh walnut green peels, drying the fresh walnut green peels at 98° C. and then pulverizing them to obtain walnut green peel powders;

...

Embodiment 2

[0135] (1) Extract walnut green peel pigment, gallnut pigment, yam yam pigment and green tea tea pigment respectively;

[0136] (2) Carry out pre-dyeing pretreatment to cashmere fiber or fabric by adopting pre-dyeing pre-treatment liquid, wherein, contain hydrogen peroxide solution, penetrant, acid protease and anionic surfactant in the pre-treatment liquid;

[0137] (3) According to the liquor ratio of 1:15, 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 after pre-dyeing pretreatment, carry out dyeing;

[0138] (4) Washing, soaping, washing and drying the dyed cashmere fibers or fabrics;

[0139] Wherein, the extracting method of walnut green peel pigment comprises the following steps:

[0140] A1. Peeling fresh walnuts to obtain fresh walnut green peels, drying the fresh walnut green peels at 103° C. and then pulverizing them to obtain walnut green peel powders; ...

Embodiment 3

[0168] (1) Extract walnut green peel pigment, gallnut pigment, yam yam pigment and green tea tea pigment respectively;

[0169] (2) Carry out pre-dyeing pretreatment to cashmere fiber or fabric by adopting pre-dyeing pre-treatment liquid, wherein, contain hydrogen peroxide solution, penetrant, acid protease and anionic surfactant in the pre-treatment liquid;

[0170] (3) According to the bath ratio of 1:10, add walnut green skin pigment, gallnut pigment, yam pigment, green tea tea pigment, penetrating agent and nonionic surfactant to the cashmere fiber or fabric after dyeing pretreatment, carry out dyeing;

[0171] (4) Washing, soaping, washing and drying the dyed cashmere fibers or fabrics;

[0172] Wherein, the extracting method of walnut green peel pigment comprises the following steps:

[0173] A1. Peeling fresh walnuts to obtain fresh walnut green peels, drying the fresh walnut green peels at 95° C. and then pulverizing them to obtain walnut green peel powders;

[0174...

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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 by using natural plant pigment. The method comprises the following steps of (1) extracting walnut green seedcase pigment, gallnut pigment, dioscorea cirrhosa pigment and green tea leaf pigment; (2) carrying out pre-dyeing pretreatment on cashmere fiber or fabric by adopting pre-dyeing pretreatment liquid; (3) adding the walnut green seedcase pigment, the gallnut pigment, the dioscorea cirrhosa pigment, the green tea leaf pigment, a penetrant and a nonionic surfactant into the cashmere fiber or fabric subjected to pre-dyeing pretreatment according to a bath ratio of 1: (10-20), and performing dyeing; and (4) washing and drying the dyed cashmere fiber or fabric. According to the method, walnut green seedcase, gallnut, dioscorea cirrhosa and green tea leaves are used as raw materials to extract natural plant pigments, and the natural plant pigments are used for dyeing the cashmere fiber or fabric, so that an environment-friendly black cashmere fiber or fabric product can be obtained.

Description

technical field [0001] The invention relates to the technical field of cashmere fiber or fabric dyeing, in particular to a method for dyeing black cashmere fiber or fabric with natural plant pigments. Background technique [0002] Cashmere is a thin layer of fine wool that grows on the outer skin of goats and covers the roots of goats' coarse hair. Cashmere is a rare special animal fiber. The reason why cashmere is very precious is not only because of its small output, but more importantly, cashmere has excellent quality and characteristics. Cashmere is a thin and curved fiber with an air layer in the middle, so it is light and soft; cashmere is much thinner than wool, and the scales on the surface of cashmere fiber are small and smooth; cashmere has a high natural curl and is arranged in spinning and weaving. Tight, good cohesion, good toughness. Cashmere is slender, light, soft, smooth and warm. [0003] However, cashmere is more sensitive to acid, alkali and heat than ...

Claims

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Application Information

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IPC IPC(8): D06P1/34D06P1/46D06P1/673D06P3/14C09B61/00C09B67/54
CPCD06P1/34D06P1/46D06P1/673D06P3/14C09B61/00C09B67/0096
Inventor 姜会钰张智刚梅洪稳颜伟杰李瑞卿王雅琪姚金波闫晓敏
Owner WUHAN TEXTILE UNIV
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