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One-step extracting and printing method of natural dye

A technology of natural dyes and printing methods, applied in the field of dyeing and finishing, can solve the problems of long process time, low efficiency and high cost, and achieve the effects of broad application prospects and simple and feasible processes

Inactive Publication Date: 2018-03-20
HENAN INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to aim at the shortcomings of the current natural dye printing, which generally needs to extract the dye first, and then print, the process time is long, the cost is high, and the efficiency is low, which is not conducive to the promotion and application of natural dye printing technology. The natural dye extraction raw materials are crushed into micron-sized powder, and then the micron-sized powder is prepared into a printing paste. After printing, the steaming process realizes one-step extraction of natural dyes and printing coloring processing, reducing production costs and improving efficiency

Method used

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  • One-step extracting and printing method of natural dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of natural dye one-step extraction and printing method, its process is as follows:

[0020] The hematoxylin stem is used as a raw material for extracting natural dyes to be crushed into micron-sized powder (0.1-5 μm), and then the micron-sized powder, carboxymethyl cellulose, acetic acid, lanthanum chloride, and water are prepared into a printing paste, and then the above-mentioned The printing color paste is used to print the cotton fabric, and the printed fabric is dried, steamed at 100 ℃ for 30 minutes, washed with water, and dried to obtain the printed product;

[0021] The printing paste prescription is as follows:

[0022] Sumac stem powder 20 g

[0023] Carboxymethylcellulose 40 g

[0024] Acetic acid 2 g

[0025] Lanthanum chloride 3 g

[0026] 35 g of water.

Embodiment 2

[0028] A kind of natural dye one-step extraction and printing method, its process is as follows:

[0029] Mint leaves are used as raw materials for extracting natural dyes to be crushed into micron-sized powders, and then the micron-sized powders, sodium alginate, sodium bicarbonate, cerium chloride, and water are prepared into printing pastes, and then the linen fabrics are treated with the above-mentioned printing pastes. Printing, the printed fabric is dried, steamed at 180 ℃ for 5 minutes, washed with water, and dried to obtain the printed product;

[0030] The printing paste prescription is as follows:

[0031] Mint leaf powder 10 g

[0032] Sodium alginate 45 g

[0033] Sodium bicarbonate 1 g

[0034] Cerium chloride 0.5 g

[0035] Water 43.5 g.

Embodiment 3

[0037] A kind of natural dye one-step extraction and printing method, its process is as follows:

[0038] The walnut peel is used as the raw material for extracting natural dyes to be crushed into micron-sized powder, and then the micron-sized powder, yellow dextrin, hydrochloric acid, aluminum sulfate, and water are prepared into a printing paste, and then the silk fabric is printed with the above-mentioned printing paste. After the fabric is dried, steamed at 150 ℃ for 10 minutes, washed and dried, the printed product is obtained;

[0039] The printing paste prescription is as follows:

[0040] Walnut peel powder 18 g

[0041] Yellow dextrin 35 g

[0042] Hydrochloric acid 2 g

[0043] Aluminum sulfate 2g

[0044] Water 43 g.

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Abstract

The invention discloses a one-step extracting and printing method of natural dye. The one-step extracting and printing method is characterized by smashing extracted raw materials of the natural dye into micro-sized powder, forming printing paste by mixing the powder with a common printing stock thickener, a printing assistant and water, drying after printing the printing paste on a textile product, then steaming, and realizing extracting of pigment of the natural dye and coloring on fiber during a steaming process. According to the one-step extracting and printing method disclosed by the invention, one-step extracting and printing processing can be realized, and all indexes of a printing product meet the using requirements; according to the one-step extracting and printing method, the timeis saved, the production efficiency is increased, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of dyeing and finishing, and relates to a method for one-step extraction and printing of natural dyes by using micron-level natural dye raw materials for printing. Background technique [0002] Natural dyes are safe, comfortable, environmentally friendly, healthy, and have high added value. They have become a research hotspot in recent years. They have certain applications in infant clothing and high-end clothing. Therefore, the research on natural dye dyeing and printing technology has become a hot spot. However, before printing with natural dyes, it is generally necessary to extract natural dyes and pigments first, and then adjust the natural dyes and pigments into printing paste for printing. The process is long, the production cost is high, and the production efficiency is low, which is not conducive to the promotion of natural dye printing technology. and apply. Therefore, the development of a new tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/34C09B61/00C09B67/54
CPCC09B61/00C09B67/0096D06P1/34
Inventor 曹机良黄海涛孟春丽黄鸿宇李娟
Owner HENAN INST OF ENG