Production of Baical skullcap root plant dye

A plant dye, the technology of Scutellaria baicalensis, which is applied in the field of preparation of Scutellaria baicalensis plant dyes, can solve the problems that the crude extract is difficult to store and is not suitable for industrial production, and achieves the effect of natural color, convenient storage and transportation, and simple preparation method

Inactive Publication Date: 2007-02-14
上海多普富生物技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After searching the existing technical documents, it was found that Sun Xin and Cheng Wanli made a preliminary study on the extraction method of scutellaria baicalensis in the article "Scutellaria baicalensis to the dyeing of real silk fabrics" ("Silk", the second phase in 2002, P11-13). Research has found that adding alkali can help the extraction of baicalein, but this technology is currently not suitable for industrial production, and the crude extract is difficult to store

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Select Scutellaria baicalensis plants, wash, dry, crush and pass through 10 meshes. Weigh 4000g plant material and add 25% ethanol solution, and add 0.1g sodium hydroxide per liter of solvent, the ratio of solid to liquid is 1:10, extract natural pigment at room temperature 10°C, extraction time is 12 hours, filter and then extract 1 time, combine the filtrates to obtain the dye solution. Concentrate the extracted dye solution under reduced pressure at 30°C to prepare a concentrated natural dye solution. The dye concentrate was dried by a spray dryer to make 358g of natural dye powder.

[0017] The plant resource utilized in the present invention is abundant, and the preparation method is simple; there is no pollution to the environment by chemically synthesized dyes in the preparation process; the prepared dyes are natural in color, elegant and non-toxic to the human body; they are applied to the clean production of the textile industry, Can be mass produced.

Embodiment 2

[0019] Select Scutellaria baicalensis plants, wash, dry, crush and pass through 50 meshes. Weigh 4000g of plant material and add 50% ethanol solution, and add 0.8g of sodium hydroxide per liter of solvent, the ratio of solid to liquid is 1:15, extract the natural pigment at room temperature 20°C, the extraction time is 18 hours, filter and then extract 1 time, combine the filtrates to obtain the dye solution. Concentrate the extracted dye solution under reduced pressure at 45°C to prepare a concentrated natural dye solution. The dye concentrate was dried by a spray drier to make 364g of natural dye powder.

[0020] The plant resource utilized in the present invention is abundant, and the preparation method is simple; there is no pollution to the environment by chemically synthesized dyes in the preparation process; the prepared dyes are natural in color, elegant and non-toxic to the human body; they are applied to the clean production of the textile industry, Can be mass pro...

Embodiment 3

[0022] Select the Scutellaria baicalensis plant, wash, dry, crush and pass through 100 meshes. Weigh 4000g of plant material and add 95% ethanol solution, and add 2.0g of sodium hydroxide per liter of solvent, the ratio of solid to liquid is 1:20, extract the natural pigment at room temperature at 35°C, the extraction time is 24 hours, filter and then extract 1 time, combine the filtrates to obtain the dye solution. Concentrate the extracted dye solution under reduced pressure at 60°C to prepare a concentrated natural dye solution. The dye concentrate was dried by a spray dryer to make 397g of natural dye powder.

[0023] The plant resource utilized in the present invention is abundant, and the preparation method is simple; there is no pollution to the environment by chemically synthesized dyes in the preparation process; the prepared dyes are natural in color, elegant and non-toxic to the human body; they are applied to the clean production of the textile industry, Can be m...

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PUM

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Abstract

Production of skullcap plant dye is carried out by choosing skullcap plant, breaking, adding into alcohol solution and sodium hydrate, extracting natural dye liquid from leaching method at room-temperature, filtering, obtaining dye liquid, de-pressuring and concentrating extracted dye liquid, preparing dye concentrate, high-speed centrifugal spraying and drying for dye concentrate, and obtaining natural dye powder. Its advantages include simple process, natural color and no environmental pollution. It can be used for spinning production.

Description

technical field [0001] The invention relates to a method in the technical field of chemical dyes, in particular to a method for preparing a Scutellaria baicalensis plant dye. Background technique [0002] Scutellaria baicalensis Georgi is a perennial herb of Labiatae. It is a commonly used traditional Chinese medicine for clearing away heat and detoxifying. It is mainly produced in Northwest and Northeastern provinces (regions) of my country, including Hebei, Shaanxi and Shandong. Its main active ingredients are a variety of flavonoids and their derivatives, among which baicalin and baicalein are effective antibacterial ingredients, wogonin has a certain degree of anticancer activity, and baicalin can also treat hepatitis. The main pigment in Scutellaria baicalensis is Baicalin, which can be used for dyeing fabrics. [0003] After searching the existing technical documents, it was found that Sun Xin and Cheng Wanli made a preliminary study on the extraction method of scutel...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B61/00
Inventor 代光辉金素心
Owner 上海多普富生物技术有限公司
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