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 materia

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1

[0024] Weigh the crushed impatiens, add a 40% ethanol aqueous solution with a volume ratio of 2, the pH value is 2, the material-to-liquid mass ratio is 1:15, the ultrasonic power is 400W at 20°C, and after extraction for 30 minutes, the filter residue and natural content are filtered Dye filtrate; after leaching the filter residue with 50% ethanol aqueous solution at 20°C for 60 minutes, filter, combine the two filtrates, and centrifuge the filtrate at a centrifugal speed of 3000r / min and a centrifugal time of 10min. Separate the supernatant The supernatant was concentrated under reduced pressure to obtain crude balsam balsam natural dye; after the crude balsam balsam natural dye was dissolved in deionized water, it was added to a macroporous adsorption resin column, and the flow rate was controlled at 2 mL / min until the adsorption was saturated. Afterwards, the resin column was rinsed with deionized water to remove impurities, and then eluted with an ethanol ...

Example Embodiment

[0028] Example 2

[0029] Weigh the crushed impatiens, add 50% ethanol aqueous solution by volume, pH 3, mass ratio of material to liquid 1:30, ultrasonic power 700W, after extraction at 40℃ for 60min, filter residue and natural content Dye filtrate; after extracting the filter residue with a 75% ethanol solution by volume at 65°C for 80 min, filter, combine the two filtrates, centrifuge at a centrifugal speed of 6000r / min, and centrifuge for 20 min. Separate the supernatant and After precipitation, the supernatant was concentrated under reduced pressure to obtain crude balsam balsam natural dye; after the crude balsam balsam natural dye was dissolved in deionized water, it was added to a macroporous adsorption resin column, and the flow rate was controlled at 4 mL / min. After the adsorption was saturated, Rinse the resin column with deionized water to wash away impurities, and then eluted with an ethanol aqueous solution with a pH of 4 and a volume ratio of 60%. The obtained elu...

Example Embodiment

[0033] Example 3

[0034] Weigh the crushed impatiens, add a 60% ethanol aqueous solution by volume, pH 4, material-to-liquid mass ratio 1:45, ultrasonic power 800W, extract at 50°C for 70 minutes, and filter to obtain filter residue and natural dye Filtrate: After leaching the filter residue with a volume ratio of 80% ethanol aqueous solution at 50°C for 90 minutes, filter, combine the two filtrates, and centrifuge the filtrate at a centrifugal speed of 7000r / min and a centrifugal time of 30min. Separate the supernatant and After precipitation, the supernatant was concentrated under reduced pressure to obtain crude balsam balsam natural dye; after the crude balsam balsam natural dye was dissolved in deionized water, it was added to a macroporous adsorption resin column, and the flow rate was controlled at 4 mL / min. After the adsorption was saturated, Rinse the resin column with deionized water to wash away impurities, and then eluted with an ethanol aqueous solution with a pH of...

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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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