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Application of natural dyes from balsamine in dyeing

A technology of natural dyes and impatiens, applied in natural dyes, dyeing methods, azo dyes, etc., can solve the problems of waste of raw materials and time, low extraction rate, etc., and achieve the effect of low cost, high extraction efficiency, and wide range of raw materials

Inactive Publication Date: 2011-05-04
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above extraction methods all use the traditional extraction method, the extraction rate is low, waste of raw materials and time
Impatiens natural pigments have less research on fabric dyeing, most of the research is on natural hair dyes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh the crushed Impatiens, add 40% ethanol aqueous solution by volume, the pH value is 2, the mass ratio of solid to liquid is 1:15, and the ultrasonic power is 400W at 20°C. After extraction for 30min, filter the residue and contain natural Dye filtrate; extract the filter residue with 50% ethanol aqueous solution at 20°C for 60 minutes, filter, combine the obtained filtrates twice, and carry out centrifugation on the filtrate at a centrifugal speed of 3000r / min for 10 minutes to separate the supernatant solution and precipitation, and the supernatant was concentrated under reduced pressure to obtain crude impatiens natural dye; after the crude impatiens natural dye was dissolved in deionized water, it was added to a macroporous adsorption resin column, and the flow rate was controlled at 2mL / min. Finally, wash the resin column with deionized water to wash away impurities, and then elute with a pH value of 3 and a volume ratio of 50% ethanol aqueous solution. The obt...

Embodiment 2

[0029] Weigh the crushed Impatiens, add 50% ethanol aqueous solution by volume, the pH value is 3, the mass ratio of solid to liquid is 1:30, and the ultrasonic power is 700W. After extracting at 40°C for 60min, filter the residue and contain natural The filtrate of the dye; the filter residue is leached at 65° C. for 80 minutes with a 75% ethanol solution by volume, filtered, and the resulting filtrates are combined twice, and centrifuged at a centrifugal speed of 6000 r / min for 20 minutes to separate the supernatant and Precipitation, the supernatant was concentrated under reduced pressure to obtain crude impatiens natural dye; after the crude impatiens natural dye was dissolved in deionized water, it was added to a macroporous adsorption resin column, and the flow rate was controlled at 4mL / min. After the adsorption was saturated, Rinse the resin column with deionized water to remove impurities, and then elute with ethanol aqueous solution with a pH value of 4 and a volume r...

Embodiment 3

[0034] Weigh the crushed Impatiens, add 60% ethanol aqueous solution by volume, the pH value is 4, the mass ratio of solid to liquid is 1:45, the ultrasonic power is 800W, extract at 50°C for 70min, filter to obtain filter residue and natural dye-containing Filtrate; the filter residue is leached at 50° C. for 90 min with the ethanol aqueous solution with a volume ratio of 80%, and then filtered, and the obtained filtrate is combined twice, and the filtrate is centrifuged at a centrifugal speed of 7000 r / min, and the centrifugation time is 30 min. Precipitation, the supernatant was concentrated under reduced pressure to obtain crude impatiens natural dye; after the crude impatiens natural dye was dissolved in deionized water, it was added to a macroporous adsorption resin column, and the flow rate was controlled at 4mL / min. After the adsorption was saturated, Rinse the resin column with deionized water to remove impurities, and then elute with ethanol aqueous solution with a pH...

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PUM

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Abstract

The invention relates to an application of natural dyes from balsamine in dyeing, comprising the following steps: 1) performing pre-treatment on raw materials; 2) performing ultrasonic wave extracting on raw materials; 3) concentrating the filtrate to get the pasty raw balsamine natural dye; 4) refining the natural dye; 5) performing dying technique on real silks and cotton fabrics by the natural dyes from balsamine. The preparation method is simple, the cost is low, and the extracting efficiency is high; the obtained dyed fabric is safe, environment-friendly, biodegradable, good in pigment stability, and specific in health care performance; and the application has wide application prospect.

Description

technical field [0001] The invention belongs to the application field of natural dyes, in particular to the application of a natural dye of impatiens in dyeing. Background technique [0002] Studies have shown that synthetic dyes may cause some people to suffer from skin diseases, and there are more than 100 kinds of synthetic dyes that can produce carcinogens. The problem of wastewater pollution caused by synthetic dyes and intermediates is even more worrying. Natural dyes have a long history in my country, and people used natural dyes for dyeing in ancient times. With the shortage of petroleum and the environmental and safety problems of some synthetic dyes, people have regenerated strong interest in renewable, biodegradable, and some functional natural dyes. Therefore, the extraction and application of natural dyes are of great significance. [0003] Impatiens, also known as henna. Impatiens is not only an ornamental flower, but also a kind of Chinese herbal medicine. ...

Claims

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Application Information

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IPC IPC(8): D06P1/34D06P3/04D06P3/60C09B61/00D06M15/03D06M101/06
Inventor 纪俊玲李小琴王炜朱美芳汪媛杨扬
Owner DONGHUA UNIV
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