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Golden rod natural dyestuff, preparation method and use thereof

A technology of natural dyes and yellow flowers, which is applied in the field of natural dyes, can solve the problems of ecological balance damage, achieve the effect of solving the problem of ring damage, good color fastness, and good reproducibility

Inactive Publication Date: 2007-10-17
上海多普富生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to disclose the natural dye of goldenrod and its preparation method and application, so as to solve the problem of damaging the ecological balance of goldenrod

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Gather fresh solidago inflorescences and chop or puree them in a blender. Weigh 1 kg of crushed plant material, add 5 L of distilled water, heat and boil for 5 minutes, filter after cooling, extract the precipitated part with distilled water again, repeat twice, and combine the supernatants for three times to obtain a dye solution; reduce the extracted dye solution at 30°C Concentrate under pressure to a specific gravity of 1.01 (20°C) to make a concentrated dye solution; ultrasonically shake the concentrated dye solution at 35°C for 30 minutes; then centrifugally spray dry at 90°C to obtain 75.2 g of natural dye powder.

[0025] Add 50g of natural dye powder into 5L of distilled water and heat to 40°C;

[0026] Dip 250g of woolen fabric into the dye solution, then raise the temperature to boil, keep it for 10 minutes, and keep stirring, then lower the temperature to 25°C, rinse the woolen fabric, and dry it to obtain a yellow dyeing effect.

[0027] The dyeing effect ...

Embodiment 2

[0030] Gather fresh solidago inflorescences and chop or puree them in a blender.

[0031] Weigh 1 kg of crushed plant material, add 10 L of distilled water, heat and boil for 60 minutes, filter after cooling, extract the precipitated part with distilled water again, repeat twice, and combine the supernatants three times to obtain a dye solution; reduce the extracted dye solution at 45°C Concentrate under pressure to a specific gravity of 1.02 (20°C) to make a concentrated dye solution; ultrasonically shake the concentrated dye solution at 35°C for 100 minutes; then centrifugally spray dry at 90°C to obtain 78.6 g of natural dye powder.

[0032] Add 50g of natural dye powder into 25L of distilled water and heat to 60°C;

[0033] Dip 700g of silk fabric into the dye solution, then heat up to boil, keep stirring for 35 minutes, then lower the temperature to 15°C, rinse the silk fabric, and dry it to obtain yellow dyeing effect.

[0034] The dyeing effect is detected by the metho...

Embodiment 3

[0037] Gather fresh solidago inflorescences and chop or puree them in a blender.

[0038] Weigh 1 kg of crushed plant material, add 15 L of distilled water, heat and boil for 120 minutes, filter after cooling, extract the precipitated part with distilled water again, repeat twice, and combine the supernatants three times to obtain a dye solution; reduce the extracted dye solution at 60°C Concentrate under pressure to a specific gravity of 1.03 (20°C) to make a concentrated dye solution; ultrasonically shake the concentrated dye solution at 35°C for 180 minutes; then dry it by centrifugal spraying at a high speed at 90°C to obtain 79.8 g of natural dye powder.

[0039] Add 50g of natural dye powder into 50L of distilled water, and heat to 80°C;

[0040] Immerse 1kg of woolen fabric into the dyeing solution, then heat up to boil, keep stirring for 60 minutes, then lower the temperature to room temperature, rinse the woolen fabric, and dry it to obtain a yellow dyeing effect.

...

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PUM

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Abstract

The invention relates to a Solidago canadensis natural dye and its producing method and application. The invention comprises following steps: selecting Solidago canadensis, adding distilled water solution after smashing, boiling, filtering after cooling, getting the dye liquid; depressed concentrating extracted dye liquid, producing dye concentration liquid; dissolving the dye concentration liquid under the ultrasonic shock; spray drying the dye concentration liquid by high speed centrifugation, obtaining the yellow natural dye powder. The Solidago canadensis natural dye can be used for printing and dyeing of fabric. The invention has a simple production method without pollution. The prepared dye is natural, elegant, nonhazardous and can be applied in textile industry. The invention uses modern means based on the traditional art to improve the extraction art and facilitate the storage and transportation.

Description

technical field [0001] The invention relates to a natural dye extracted from plants, in particular to a natural dye extracted from Solidago canadensis L., a preparation method thereof and a dyeing method on woolen fabrics. Background technique [0002] 'Canada solidago' is a perennial herb of the Asteraceae family native to North America. In 1935, it was first introduced into my country as a garden ornamental plant and planted in Shanghai. In the 1980s, it gradually spread to river beaches, wasteland, roadsides, front and back of houses and some farmlands and caused local damage. Because the weed is more adaptable to the local soil and climate environment, it is extremely competitive among species, forming a momentum of rapid reproduction and rapid spread. At present, it commonly occurs in Zhejiang, Shanghai, Anhui, Hubei, Jiangsu, Jiangxi and other places in my country, and has become a typical malignant weed that is very harmful to the ecological environment. According t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00D06P1/34D06P3/14
CPCD06P1/34C09B61/00D06P3/14D06P3/04
Inventor 郑善强
Owner 上海多普富生物技术有限公司
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