CN102911519A - Preparation method of lithospermum vegetable dye - Google Patents
Preparation method of lithospermum vegetable dye Download PDFInfo
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- CN102911519A CN102911519A CN 201210448744 CN201210448744A CN102911519A CN 102911519 A CN102911519 A CN 102911519A CN 201210448744 CN201210448744 CN 201210448744 CN 201210448744 A CN201210448744 A CN 201210448744A CN 102911519 A CN102911519 A CN 102911519A
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Abstract
The invention discloses a preparation method of a lithospermum vegetable dye, belonging to the technical field of chemical dyes. The preparation method comprises the followings steps of: selecting lithospermum, pulverizing the lithospermum into powder by a pulverizer, putting the powder into an extraction tank, adding ethanol, stirring and extracting a natural dye solution, wherein the ratio of the lithospermum raw material to the ethanol is 1:1 to 1:20, and filtering to obtain a dye solution A; adding ethanol to the filtered solid for extracting and filtering again, and mixing the filtered dye solution with the dye solution A to obtain an extracted dye solution; drying and concentrating the extracted dye solution through a rotary evaporimeter to prepare a concentrated dye solution; and drying the concentrated dye solution by high-speed centrifugal atomization to prepare a natural dye powder. The preparation method of a lithospermum vegetable dye has the advantages of easily-available sources of raw materials, simple production process and high production efficiency, and the prepared powdered dye is very convenient for transport, storage and production.
Description
Technical field
The present invention relates to the preparation method of Asian puccoon vegetable dye, it belongs to the chemical dyestuff technical field.
Background technology
Raising along with people's living standard, quality of life and living environment are more and more paid attention to, the biological degradation of natural plant dye self energy, do not affect environment, vegetable dye source plant can enlarge plantation, continuous production, and it is applied to textile dyeing, has significant Social benefit and economic benefit.The Asian puccoon plant contains pigment, is a kind of good pure natural dyestuff.
Summary of the invention
In view of the defective that prior art exists, the object of the present invention is to provide the preparation method of Asian puccoon vegetable dye, make its technique simple, production efficiency is high, easily extracts the natural plant dye with dyeing function.
For achieving the above object, the technology used in the present invention solution is the preparation method of Asian puccoon vegetable dye, may further comprise the steps: choose Asian puccoon, be ground into powder with pulverizer, place extractor, add ethanol, stir and extract natural dye liquor, the Asian puccoon raw material is 1:1-1:20 with the ratio of ethanol, namely gets dye solution A after the filtration; Solid after the filtration adds ethanol and again extracts filtration, and the dye solution after the filtration and dye solution A are mixed to get the dyestuff extracting solution; The dyestuff extracting solution is dry concentrated by Rotary Evaporators, make dye concentrated solution; Dye concentrated solution through hig h-speed centrifugal spray drying, is made natural dye powder.Described powder is the 10-100 order.Described ethanol is dehydrated alcohol.Vacuum tightness 0.085 MPa of described Rotary Evaporators, bath temperature is 50-60 ℃.
After adopting such scheme, compared with prior art have following beneficial effect: raw material sources are convenient, and production technique is simple; Be prepared into powder dye, be convenient to very much transportation, store and produce, production efficiency is high.
Embodiment
Following the present invention is described further in connection with embodiment:
The preparation method of Asian puccoon vegetable dye, adopt following technological process: choose Asian puccoon, be ground into powder with pulverizer, place extractor, add ethanol, stir and extract natural dye liquor, the Asian puccoon raw material is 1:1-1:20 with the ratio of ethanol, namely gets dye solution A after the filtration; Solid after the filtration adds ethanol and again extracts filtration, and the dye solution after the filtration and dye solution A are mixed to get the dyestuff extracting solution; The dyestuff extracting solution is dry concentrated by Rotary Evaporators, make dye concentrated solution; Dye concentrated solution through hig h-speed centrifugal spray drying, is made natural dye powder.Described powder is the 10-100 order.Described ethanol is dehydrated alcohol.Vacuum tightness 0.085 MPa of described Rotary Evaporators, bath temperature is 50-60 ℃.
Raw material sources are convenient, and production technique is simple; Be prepared into powder dye, be convenient to very much transportation, store and produce, production efficiency is high.
Claims (4)
1. the preparation method of Asian puccoon vegetable dye is characterized in that: may further comprise the steps:
Choose Asian puccoon, be ground into powder with pulverizer, place extractor, add ethanol, stir and extract natural dye liquor, the Asian puccoon raw material is 1:1-1:20 with the ratio of ethanol, namely gets dye solution A after the filtration; Solid after the filtration adds ethanol and again extracts filtration, and the dye solution after the filtration and dye solution A are mixed to get the dyestuff extracting solution; The dyestuff extracting solution is dry concentrated by Rotary Evaporators, make dye concentrated solution; Dye concentrated solution through hig h-speed centrifugal spray drying, is made natural dye powder.
2. the preparation method of Asian puccoon vegetable dye according to claim 1, its feature in: described powder is the 10-100 order.
3. the preparation method of Asian puccoon vegetable dye according to claim 1, it is characterized in that: described ethanol is dehydrated alcohol.
4. the preparation method of Asian puccoon vegetable dye according to claim 1, it is characterized in that: vacuum tightness 0.085 MPa of described Rotary Evaporators, bath temperature is 50-60 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210448744 CN102911519A (en) | 2012-11-12 | 2012-11-12 | Preparation method of lithospermum vegetable dye |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210448744 CN102911519A (en) | 2012-11-12 | 2012-11-12 | Preparation method of lithospermum vegetable dye |
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| CN102911519A true CN102911519A (en) | 2013-02-06 |
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| CN 201210448744 Pending CN102911519A (en) | 2012-11-12 | 2012-11-12 | Preparation method of lithospermum vegetable dye |
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| CN (1) | CN102911519A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106280538A (en) * | 2015-05-20 | 2017-01-04 | 梁建好 | A kind of preparation method of lithospermum vegetable dye |
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2012
- 2012-11-12 CN CN 201210448744 patent/CN102911519A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106280538A (en) * | 2015-05-20 | 2017-01-04 | 梁建好 | A kind of preparation method of lithospermum vegetable dye |
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Application publication date: 20130206 |