Natural vegetable dye textile dyeing and printing technique

A technology of natural vegetable dyes and printing and dyeing technology, applied in the field of natural vegetable dyes textile printing and dyeing technology, can solve the problems of lack of directness and low directness of fibers, and achieve the effects of promoting development, being environmentally friendly, and being beneficial to resource conservation and comprehensive utilization.

Inactive Publication Date: 2009-02-18
殷大卫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most natural vegetable dyes have no or less directness to the fib

Method used

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  • Natural vegetable dye textile dyeing and printing technique
  • Natural vegetable dye textile dyeing and printing technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1: natural plant dyestuff to cellulose fiber printing and dyeing process

[0051] The process is as follows:

[0052] (1) Pretreatment: firstly, 5 g / liter a-amylase was used to catalyze the starch size of the hydrolyzed fabric for 50 minutes, the temperature: 50°C, the pH value was 4, the bath ratio: 1:10, and the cotton fabric was desized. Then use catalase to bleach the fabric, temperature: 20°C, pH value 4, catalase dosage is 4 ml / liter, time 15 minutes, then use catalase 1 g / liter, time 15 minutes, normal temperature, Remove residual hydrogen peroxide from fabrics.

[0053] (2) Soaping: Prepare clean water with a bath ratio of 1:10, put it into the cotton fabric and add 0.5g / liter of neutral soaping agent at the same time, raise the temperature to 60°C, keep it warm for 20min, and drain.

[0054] (3) Pre-mordanting: prepare clean water, water hardness <50, bath ratio 1:10, put in cotton fabric and mordant Modi Mahati 2g / liter, start to heat up the morda...

Embodiment 2

[0060] Embodiment 2: natural plant dyestuff to cellulose fiber printing and dyeing process

[0061] The process is as follows:

[0062] (1) Pretreatment: firstly, 6g / liter a-amylase is used to catalyze the starch size of the hydrolyzed fabric for 55 minutes, the temperature: 60°C, the pH value is 5, the bath ratio: 1:10, and the cotton fabric is desized. Then use catalase to bleach the fabric, temperature: 25°C, pH value 5, catalase dosage is 5 ml / liter, time 20 minutes, then use catalase 1.5 g / liter, time 15 minutes, normal temperature, Remove residual hydrogen peroxide from fabrics.

[0063] (2) Soaping: Prepare clean water with a bath ratio of 1:10, put it into the cotton fabric and add 1g / liter of neutral soaping agent at the same time, raise the temperature to 70°C, keep it warm for 25min, and drain.

[0064] (3) Pre-mordanting: prepare clean water, water hardness <50, bath ratio 1:10, put cotton fabric and mordant Modi Mahati 3g / liter, start to heat up the mordant solu...

Embodiment 3

[0070] Embodiment 3: natural plant dyestuff to cellulose fiber printing and dyeing process

[0071] The process is as follows:

[0072] (1) Pretreatment: firstly, 7g / liter a-amylase was used to catalyze the starch slurry of the hydrolyzed fabric for 60 minutes, the temperature: 70°C, the pH value was 7, the liquor ratio: 1:20, and the cotton fabric was desized, Then use catalase to bleach the fabric, temperature: 30°C, pH value 7, catalase dosage is 6 ml / liter, time 20 minutes, then use catalase 2 grams / liter, time 20 minutes, normal temperature, Remove residual hydrogen peroxide from fabrics.

[0073] (2) Soaping: Prepare clean water with a bath ratio of 1:20, put it into the cotton fabric and add 1.5g / liter of neutral soaping agent at the same time, raise the temperature to 80°C, keep it warm for 30min, and drain.

[0074](3) Pre-mordanting: prepare clean water, water hardness <50, bath ratio 1:20, put in cotton fabric and mordant Modi Mahati 5g / liter, start to heat up the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a dyeing and printing technique to dye fabrics with natural plant dyestuff, including the following steps: (1) pretreatment, (2) soaping, (3) pre-mordant dyeing, (4), dyeing, (5) washing, (6) post-treatment, (7) washing, and (8) drying. The dyeing and printing technique adopts pollution-free natural plant dye and addition agent and requires no metal mordant during the dyeing process, and the dyeing and printing technique is ecological and produces no harmful gas or volatile substance, so the dyeing and printing technique is nontoxic and is environment-friendly. The product indexes accord with EU Oko-Tex Standard 100 and reach the standard of modern ecological textiles. The dyed fabric has excellent color fastness and good UV screening property. Production shows that the dyeing and printing technique totally satisfies the requirements of industrialized production of fabrics dyed and printed with plant dyestuff. The dyeing and printing technique suits technological development trend and the requirement of the change of consumer product market and has obvious environmental, social and economic benefits.

Description

technical field [0001] The invention relates to the field of textile dyeing, in particular to the textile printing and dyeing process of natural vegetable dyes. Background technique [0002] Textiles are essential living materials for human beings, and the properties and quality of their dyes are directly related to human health and social development. The textile industry is a huge light industry in the world. It pollutes the environment seriously and endangers human health. The biggest source of pollution in the textile industry comes from dyeing and finishing. The European Union has announced that 23 intermediates containing azo dyes in textiles are not allowed to be used. If any of them are detected, it is a substandard product and cannot enter the EU market. China is a big textile country, and the export of printing and dyeing textiles accounts for about 28% of the country's total export value. The disadvantages of synthetic dyes have attracted great attention from go...

Claims

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Application Information

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IPC IPC(8): D06P1/34D06P1/36D06P3/64D06P3/04D06M16/00C12S11/00D06L1/00D06L3/11D06M101/10D06L1/12D06L4/40
Inventor 殷大卫
Owner 殷大卫
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