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Extraction, separation and dyeing application of natural dye

A natural dye, a natural technology, applied in the direction of natural dyes, azo dyes, organic dyes, etc., to achieve the effect of simple extraction process, good ecological compatibility, and rich sources

Active Publication Date: 2012-07-25
CHANGZHOU MYSUN BIOLOGICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still a blank in the natural dyeing of reeds.

Method used

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  • Extraction, separation and dyeing application of natural dye
  • Extraction, separation and dyeing application of natural dye
  • Extraction, separation and dyeing application of natural dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0030] According to the data shown in table 1, the extraction and separation of step (1) pituitary red natural dye are as follows:

[0031] Remove the seed coat of the mature pituitary fruit, take out the red seeds, put them into a closed container of methanol-ethanol-water, adjust the pH value of the solution with an alkali agent, boil and extract for 2 hours under a vacuum of 0.05MPa, and then filter with suction. Filter residue repeats above-mentioned leaching step 2-3 times, merges filtrate. The filtrate was subjected to polyamide column chromatography, eluted with ethyl acetate-n-hexane solution, and then the eluate was concentrated under reduced pressure in a vacuum concentration tank with a vacuum degree of 0.06-0.08MPa. The solvent was recovered and dried to obtain a red color block, grind and disperse the color block to 200-300 mesh, and obtain Pittosporum red natural dye.

[0032] According to modification and dyeing condition of table 2, the reed dyeing of step (2)...

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Abstract

The present invention relates to extraction, separation and a dyeing method of a pittosporum fruit red natural dye. The whole process includes: (1) extraction and separation of the pittosporum fruit red natural dye; and (2) modification and dyeing of a high-end decorative material reed. In the invention, the raw materials are natural and are rich in sources, the process is simple, green and environmental protection, and the extracted red natural dye has good ecological compatibility, unique color tone, mild and elegant luster, and the wear resistant color fastness as well as the illumination resistant colorfastness of the dye can both reach above grade 3.

Description

technical field [0001] The invention belongs to the field of application of natural dyes, and specifically relates to the extraction, separation and dyeing method of a red natural dye, and more specifically relates to a method for extracting and separating red natural dyes from Pittosporum fruit and using them in high-grade decorative reeds and grasses. , Dyeing method on linen. technical background [0002] Natural dyes refer to dyes obtained from natural raw materials such as plants and animals, and have a long history of application in the course of human development. Natural dyes are soft in color, non-toxic and harmless, non-allergic and carcinogenic to the skin, and have good biodegradability and environmental compatibility. In addition to the dyeing function, they also have various functions such as medicine and fragrance. During the dyeing process, its drug and fragrance components are absorbed by the fabric together with the pigment, which has special health care f...

Claims

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Application Information

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IPC IPC(8): C09B61/00B27K9/00
Inventor 纪俊玲汪信雷琳汪媛
Owner CHANGZHOU MYSUN BIOLOGICAL MATERIALS
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