Method for dyeing fabric with plant dye

A fabric dyeing and vegetable dye technology, applied in the field of printing and dyeing, can solve the problems of large consumption of chemical auxiliaries and energy, low dye utilization rate and high dyeing temperature, achieve significant economic and environmental value, avoid metal pollution, and avoid harmful substances. Effect

Inactive Publication Date: 2019-04-05
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in the dyeing process of vegetable dyes, most of the vegetable dyes need to be treated with mordants or modified to increase the dyeing fastness, but a large amount of chemical auxiliarie

Method used

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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  • Method for dyeing fabric with plant dye
  • Method for dyeing fabric with plant dye
  • Method for dyeing fabric with plant dye

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example one

[0024] This embodiment relates to the dyeing of fabrics with vegetable dyes.

Example Embodiment

[0025] Example 1.1

[0026] Take an appropriate amount of turmeric, crush the powder and screen out the turmeric powder with a particle size of 80 mesh, add acetic acid and sodium acetate buffer solution of pH 5 to the turmeric powder in the ratio of material-to-liquid ratio (m:m) 8g:200g, and Add 20g / L sodium lauryl sulfate, extract at 100℃, 100r / min for 1h, and filter the extract to obtain the dye mother liquor, and use the dye mother liquor as the dye liquor.

[0027] Take 15g of sodium carbonate and 10g of detergent to make 1L of pretreatment solution, soak the cotton fabric in the pretreatment solution, and then in the bath ratio (m:m) 1:20, temperature 80 ℃, time 30 ~ 60min conditions Pre-processing under.

[0028] Soak the pretreated cotton fabric in the dye liquor, and add 15g / L dyeing auxiliary to the dye liquor. The dyeing auxiliary includes: sodium lauryl sulfate 2.5g, sodium acetate 5.5g, acetic acid 3g, Sodium chloride 4g, while performing ultrasonic dyeing under the c...

Example Embodiment

[0030] Example 1.2

[0031] Take appropriate amount of hematoxylin, pulverize it and screen out hematoxylin powder with a particle size of 100 mesh, add acetic acid with pH 6 and sodium acetate buffer to hematoxylin powder in the ratio of material-to-liquid ratio (m:m) 8g:160g Solution, and add 20g / L sodium pyrophosphate, extract 1.2h at 90℃, 90r / min, and filter the extract to obtain the dye mother liquor, and use the dye mother liquor as the dye liquor.

[0032] Take 15g of sodium carbonate and 10g of detergent to make 1L of pretreatment solution, soak the cotton fabric in the pretreatment lotion, and then under the conditions of bath ratio (m:m) 1:20, temperature 80℃, time 50min Perform pretreatment.

[0033] Soak the pretreated cotton fabric in the dye liquor, and add 18g / L dyeing auxiliary to the dye liquor. The dyeing auxiliary includes: sodium lauryl sulfate 3.5g, sodium acetate 6.0g, and acetic acid 4.5g , Sodium chloride 4g, while performing ultrasonic dyeing under the cond...

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Abstract

The invention discloses a method for dyeing a fabric with plant dye. In the method, dye mother liquor extracted from natural plants is used as dye liquor, a pretreated fabric is soaked in the dye liquor, a dyeing additive is added into the dye liquor, no dye mordant is added, ultrasonic dyeing is conducted according to the bath ratio of 1:3-10 and at the temperature of 30-50 DEG C, and finally dyed fabric meeting the demand for firmness is obtained. According to the obtained method for dyeing the fabric with the plant dye, the common dyeing additive is used for preparing the natural plant dyeliquor without usage of toxic dye mordant, ultrasonic dyeing with the low bath ratio is conducted, and finally the dyed fabric which meet the demand for dyeing firmness and is environmentally friendlyis obtained; in the method, during dyeing, the dyeing bath ratio can be decreased greatly, water used for production is further saved, more importantly, the amount of wastewater is reduced, there isno metal pollution in the wastewater, there are no cancerogenic substances, and the meaning of environmental protection is remarkable.

Description

technical field [0001] The invention relates to the technical field of printing and dyeing, in particular to a method for dyeing fabrics with vegetable dyes. Background technique [0002] Dyes are substances that color fibers and other materials that come into direct contact with people's skin during use. With the development of industrialization in modern times, synthetic materials are widely used for their rich color and stable color fastness; however, the raw materials and intermediates used in the production process of synthetic materials often contain carcinogens, which not only seriously pollute the environment, but also cause direct The wearer or producer is harmed. As people pay more and more attention to green and healthy life, and pursue original ecological and natural products, natural dyes extracted from plants, compared with synthetic dyes, have good environmental compatibility, low toxicity, biodegradability, and environmental pollution. It also greatly reduc...

Claims

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Application Information

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IPC IPC(8): D06P1/34D06P1/62D06P1/653D06P3/60
CPCD06P1/34D06P1/627D06P1/6533D06P3/60
Inventor 王硕马笑飞申保雷左鑫胡雪敏
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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