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Novel Chinese rose pigment applicable to textile dyes and preparation method thereof

A technology for textile dyes and rose flowers, applied in the direction of azo dyes, organic dyes, natural dyes, etc., can solve the problems of little improvement in the stability of rose anthocyanins and rare dye applications, and achieve simple and quick extraction methods and bright colors , the effect of less impurities

Inactive Publication Date: 2015-12-02
HUZHOU XINCHUANG SILK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be seen from the above prior art that the current extraction process of rose anthocyanins has little improvement in the stability of rose anthocyanins, and the application of dyes in the textile field is also very rare.

Method used

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  • Novel Chinese rose pigment applicable to textile dyes and preparation method thereof

Examples

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Effect test

Embodiment 1

[0028] (1) Wash the fresh rose petals with tap water to remove obvious dirt, then rinse with distilled water, dry them with filter paper, dry them in an oven at 35°C, grind them, and screen them through an 80-mesh sieve to form powdery rose petals .

[0029] (2) In parts by weight, place 1 part of the powdered Chinese rose prepared in step (1) in 30 parts of hydrochloric acid ethanol solution, wherein the content of hydrochloric acid is 30%, ultrasonically treat for 30 minutes under 200W power, and filter to obtain Filtrate, the filtrate is concentrated with a vacuum rotary evaporator, and dried to obtain a paste-like rose anthocyanin.

[0030] (3) In parts by weight, place 1 part of the paste-like rose anthocyanin prepared in step (2) in 50 parts of citric acid solution with a pH value of 5, add 20 parts of metal chelating agent, and stir evenly. Add 5 parts of anhydrous aluminum chloride, oscillate in an air bath until the reaction is complete, cool to room temperature, fil...

Embodiment 2

[0032] (1) Wash fresh rose petals with tap water to remove obvious dirt, then rinse with distilled water, dry with filter paper, dry in an oven at 45°C, grind, and sieve through a 100-mesh sieve to form a powdery rose flower .

[0033] (2) In parts by weight, place 1 part of the powdered Chinese rose prepared in step (1) in 100 parts of hydrochloric acid ethanol solution, wherein the content of hydrochloric acid is 50%, ultrasonically treat for 50min at 250W power, and filter to obtain Filtrate, the filtrate is concentrated with a vacuum rotary evaporator, and dried to obtain a paste-like rose anthocyanin.

[0034] (3) In parts by weight, place 80 parts of citric acid solution with a pH value of 6 of the paste-like rose anthocyanin prepared by 1 part of step (2), add 40 parts of metal chelating agent, after stirring evenly, Add 20 parts of anhydrous aluminum chloride, oscillate in an air bath until the reaction is complete, cool to room temperature, filter, and extract with p...

Embodiment 3

[0036] (1) Wash the fresh rose petals with tap water to remove obvious dirt, then rinse with distilled water, dry them with filter paper, dry them in an oven at 40°C, grind them, and screen them through a 90-mesh sieve to form powdery rose petals .

[0037] (2) In parts by weight, place 1 part of the powdered Chinese rose prepared in step (1) in 50 parts of hydrochloric acid ethanol solution, wherein the content of hydrochloric acid is 40%, ultrasonically treat for 40min under 230W power, and filter to obtain Filtrate, the filtrate is concentrated with a vacuum rotary evaporator, and dried to obtain a paste-like rose anthocyanin.

[0038] (3) In parts by weight, place 60 parts of citric acid solutions with a pH value of 5.5 of 1 part of the paste-like rose anthocyanin prepared in step (2), add 30 parts of metal chelating agents, and stir evenly. Add 15 parts of anhydrous aluminum chloride, oscillate in an air bath until the reaction is complete, cool to room temperature, filt...

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Abstract

The invention provides a novel Chinese rose pigment applicable to textile dyes and a preparation method thereof. The method comprises the following steps: (1) cleaning fresh Chinese rose petals with tap water to remove obvious dirt, flushing with distilled water, wiping with filter paper, drying in a drying oven, grinding and screening to form Chinese rose powder; (2) putting the Chinese rose powder in an acidic ethanol solvent, carrying out ultrasonic treatment, filtering to obtain a filtrate, concentrating the filtrate with a vacuum rotary evaporator, and drying to obtain a paste Chinese rose pigment; and (3) adding the paste Chinese rose pigment into a citric acid solution, adding a metal chelator, stirring uniformly, adding anhydrous aluminum chloride, oscillating in a gas bath until the reaction finishes, cooling to room temperature, filtering and extracting to obtain the Chinese rose pigment applicable to textile dyes. The Chinese rose pigment applicable to textile dyes is subjected to stable modification, has higher resistance to lighting, reducers, acids and alkalis, can be used as a natural pigment in textile dyes, and is natural, safe and stable.

Description

Technical field: [0001] The invention belongs to the technical field of textile materials, and in particular relates to a novel rose anthocyanin which can be used for textile dyes and a preparation method thereof. Background technique: [0002] With the development of science and technology and people's attention to their own health, it is found that many synthetic pigments are extremely harmful to the human body. If they are ingested by mistake or exposed to them for a long time, they will cause serious damage to the human body, and even cancer. Natural pigments are safe to use and have certain nutritional and pharmacological health effects. They are also favored by people in the field of textile dyes. The development of natural pigments is of great significance to the protection of people's health and the development of the field of natural dyes. [0003] Chinese rose, also known as Four Seasons Flower, Yueyuehong, and Yanxuehong, is a deciduous shrub in the Rosaceae famil...

Claims

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Application Information

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IPC IPC(8): C09B61/00
Inventor 任新根
Owner HUZHOU XINCHUANG SILK
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