CN105153742A - Technology for preparing natural dye by means of plant flower pedals - Google Patents
Technology for preparing natural dye by means of plant flower pedals Download PDFInfo
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- CN105153742A CN105153742A CN201510613675.8A CN201510613675A CN105153742A CN 105153742 A CN105153742 A CN 105153742A CN 201510613675 A CN201510613675 A CN 201510613675A CN 105153742 A CN105153742 A CN 105153742A
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Abstract
The invention discloses a technology for preparing natural dye by means of plant flower pedals. The technology for preparing the natural dye by means of the plant flower pedals is characterized by comprising the following steps of one-step drying, one-step smashing, mixing, extracting, filtering, distilling and two-step drying. The technology for preparing the natural dye by means of the plant flower pedals has the advantages that the raw materials and solvent used in the technology do not contain hazardous substances and can not cause pollution to the environment, the solvent can be reused through recycling, and the requirements of safe and green production are met. By means of smashing for two times, plant cells can be destroyed to the maximum extent, pigment compositions in the cells can be dissolved rapidly to obtain extract liquor with high concentration, the extraction rate is greatly increased, and raw material waste is reduced. The raw materials needed by preparing the dye adopt the plant flower pedals which are common and single and rich in color, the plant flower pedals can be obtained through large-area planting or by purchasing from growers, the sources are wide, and the situation that production can not be conducted due to lack of the raw materials can be avoided.
Description
Technical field
The invention belongs to and belong to printing technology field, be specifically related to a kind of technique utilizing plant petals to prepare natural dyestuff.
Background technology
In textile printing and dyeing industry, dyestuff is as one of important raw material, and the quality of its quality and the quality of dyeing all directly can affect the coloring effect of finished product cloth.And the buying of dyestuff has also become an expenditure larger in printing and dyeing link.Synthetic dyestuff are widely used by dyeing because it has the many advantages of color category.But adopt industrial chemicals to be prepared from through series of process, therefore inevitably containing a certain amount of objectionable impurities due to synthetic dyestuff.The synthetic dyestuff finished product cloth of printing and dyeing out is adopted objectionable impurities running in some environment to understand, as heavy metal ion or other harmful organic substance, this all can cause harm in various degree to human body, especially probably will cause irreversible injury to children population.Along with the aggravation competed between synthetic dyestuff manufacturing enterprise, objectionable impurities is adopted all will synthetic dyestuff to be made to possess larger harm as raw material or by the removal of impurities link cancellation in production technique with the way reduced costs.
In addition the production process of synthetic dyestuff also can be brought seriously
?environmental pollution.Produce large quantity of exhaust gas waste water and dregs etc. in such as production process, in the three wastes, often all contain a large amount of heavy metal ion, organic pollutant and various harmful bases.Once deal with improperly, will directly affect the soil of surrounding area, water source and air, thus cause murder by poisoning.As can be seen here, the prospect of synthetic dyestuff will be subject to serious impact, even steps down from the stage of history.Therefore be necessary that development one does not only contain hazardous substance and its preparation technology also can not produce dysgenic substituted dyes to environment.
Summary of the invention
The present invention proposes a kind of technique utilizing plant petals to prepare natural dyestuff, there is green, environmental protection, inexpensive and can not produce the feature of objectionable impurities.
Technical solution of the present invention: a kind of technique utilizing plant petals to prepare natural dyestuff, comprises the following steps.
1) step is dry: petal is tanned by the sun 4 ~ 8h or 50 ~ 70 DEG C of high temperature fluidized 30 ~ 60min drying treatment and obtain dry petal.
2) step is pulverized: dry petal is ground into the broken end of petal.
3) mix: pour in stirrer after broken to spirituous solution and petal end is mixed in the ratio of mass parts 1:4 ~ 6 and stir 5 ~ 10min and obtain turbid solution.
4) extract: turbid solution be warming up to 40 ~ 60 DEG C and extract 0.5 ~ 1.5h under the rotating speed of 20 ~ 40r/min, being extracted liquid.
5) filter: obtain filtrate and filter residue by after extraction liquid filtering and impurity removing.
6) distill: filtrate is distilled at 75 ~ 85 DEG C and obtains paste mixture.
7) two steps are dry: by paste mixture drying obtained particulate state dyestuff afterwards.
Preferably, in step 3), the concentration of spirituous solution is 30 ~ 50%.
Preferably, in step 1), plant petals is Chinese wistaria, lead a cow, rose, Chinese rose or tree peony petal sections.
Preferably, in step 3) and step 5), filter type is ultrafiltration.
Preferably, in step 7), drying mode is-50 ~-40 DEG C of frozen dryings or 110 ~ 125 DEG C of high temperature fluidized dryings.
Preferably, also comprise step 8) two step to pulverize: particulate state dyestuff is obtained powdered dye after ultrasonic grinding process.
The beneficial effect that the present invention reaches:
1, this preparation technology is raw materials used and solvent neither contains hazardous substance and can not to environment, and solvent by recycling and reusing, can meet the requirement that safe green is produced.
2, through twice pulverizing, farthest can destroy vegetable cell, make the pigment composition rapid solution in its cell thus obtain the extraction liquid of high density, substantially increasing percentage extraction, reducing wastage of material.
3, prepare dyestuff desired raw material and be common, that color is comparatively single and strong plant petals, both can have been obtained by establishing in large scale and also can have been obtained by purchase plantation family, source is comparatively extensive, can not cause lack of material and situation about cannot produce.
4, adopt ultrafiltration mode to produce filtrate can farthest undesired impurities be removed, greatly improve filter effect.
5, frozen drying farthest can ensure the physicochemical property of dried object, and high temperature fluidized drying can remove moisture fast and cost is lower.
6, dried particulate state dyestuff pulverize powder after ultrasonic grinding, is convenient to take, weigh and pack, and can rapid solution in use, shortens the preparation time of dye liquor.
Embodiment
Below in conjunction with embodiment, technical solution of the present invention is described in further detail, but protection scope of the present invention is not limited to described embodiment.
Embodiment one
Utilize plant petals to prepare a technique for natural dyestuff, comprise the following steps.
1) step is dry: by Chinese wistaria, lead a cow, rose, Chinese rose or tree peony petal tan by the sun 4h or 50 DEG C of high temperature fluidized 30min drying treatment and obtain dry petal.
2) step is pulverized: dry petal is ground into the broken end of petal.
3) mix: by concentration be 30% spirituous solution mix in the ratio of mass parts 1:4 with the broken end of petal after pour in stirrer and stir 5min and obtain turbid solution.
4) extract: turbid solution be warming up to 40 DEG C and extract 0.5h under the rotating speed of 20r/min, being extracted liquid.
5) filter: obtain filtrate and filter residue by after extraction liquid ultrafiltration removal of impurities.
6) distill: filtrate is distilled at 75 DEG C and obtains paste mixture.
7) two steps are dry: paste mixture is put into freeze drier, obtained particulate state dyestuff after dry at-40 DEG C.
8) two steps are pulverized: particulate state dyestuff is obtained powdered dye after ultrasonic grinding process.
Embodiment two
Utilize plant petals to prepare a technique for natural dyestuff, comprise the following steps.
1) step is dry: by Chinese wistaria, lead a cow, rose, Chinese rose or tree peony petal tan by the sun 8h or 70 DEG C of high temperature fluidized 60min drying treatment and obtain dry petal.
2) step is pulverized: dry petal is ground into the broken end of petal.
3) mix: by concentration be 50% spirituous solution mix in the ratio of mass parts 1:6 with the broken end of petal after pour in stirrer and stir 10min and obtain turbid solution.
4) extract: turbid solution be warming up to 60 DEG C and extract 1.5h under the rotating speed of 40r/min, being extracted liquid.
5) filter: obtain filtrate and filter residue by after extraction liquid ultrafiltration removal of impurities.
6) distill: filtrate is distilled at 85 DEG C and obtains paste mixture.
7) two steps are dry: paste mixture is put into freeze drier, obtained particulate state dyestuff after dry at-50 DEG C.
8) two steps are pulverized: particulate state dyestuff is obtained powdered dye after ultrasonic grinding process.
Embodiment three
Utilize plant petals to prepare a technique for natural dyestuff, comprise the following steps.
1) step is dry: by Chinese wistaria, lead a cow, rose, Chinese rose or tree peony petal tan by the sun 6h or 60 DEG C of high temperature fluidized 45min drying treatment and obtain dry petal.
2) step is pulverized: dry petal is ground into the broken end of petal.
3) mix: by concentration be 40% spirituous solution mix in the ratio of mass parts 1:5 with the broken end of petal after pour in stirrer and stir 7.5min and obtain turbid solution.
4) extract: turbid solution be warming up to 50 DEG C and extract 1h under the rotating speed of 30r/min, being extracted liquid.
5) filter: obtain filtrate and filter residue by after extraction liquid ultrafiltration removal of impurities.
6) distill: filtrate is distilled at 80 DEG C and obtains paste mixture.
7) two steps are dry: paste mixture is put into freeze drier, obtained particulate state dyestuff after dry at-45 DEG C.
8) two steps are pulverized: particulate state dyestuff is obtained powdered dye after ultrasonic grinding process.
In the present invention, selected plant petals both can, only with a kind of, also can be used with multiple.When mixed, the principle that the petal should following same colour system could be used in combination, avoids colour contamination occurs.In addition, drying process also can adopt high temperature fluidized bed, at the temperature of 110 ~ 125 DEG C, complete drying.The advantage of high temperature drying is that rate of drying is fast, and cost is low, successful.In still-process, the ethanol in spirituous solution recycling can prepare new spirituous solution.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from spirit of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (6)
1. utilize plant petals to prepare a technique for natural dyestuff, it is characterized in that: comprise the following steps:
1) step is dry: petal is tanned by the sun 4 ~ 8h or 50 ~ 70 DEG C of high temperature fluidized 30 ~ 60min drying treatment and obtain dry petal;
2) step is pulverized: dry petal is ground into the broken end of petal;
3) mix: pour in stirrer after broken to spirituous solution and petal end is mixed in the ratio of mass parts 1:4 ~ 6 and stir 5 ~ 10min and obtain turbid solution;
4) extract: turbid solution be warming up to 40 ~ 60 DEG C and extract 0.5 ~ 1.5h under the rotating speed of 20 ~ 40r/min, being extracted liquid;
5) filter: obtain filtrate and filter residue by after extraction liquid filtering and impurity removing;
6) distill: filtrate is distilled at 75 ~ 85 DEG C and obtains paste mixture;
7) two steps are dry: by paste mixture drying obtained particulate state dyestuff afterwards.
2. a kind of technique utilizing plant petals to prepare natural dyestuff according to claim 1, is characterized in that: in step 3), and the concentration of spirituous solution is 30 ~ 50%.
3. a kind of technique utilizing plant petals to prepare natural dyestuff according to claim 1, is characterized in that: in step 1), plant petals is Chinese wistaria, lead a cow, rose, Chinese rose or tree peony petal sections.
4. a kind of technique utilizing plant petals to prepare natural dyestuff according to claim 1, is characterized in that: in step 3) and step 5), filter type is ultrafiltration.
5. a kind of technique utilizing plant petals to prepare natural dyestuff according to claim 1, is characterized in that: in step 7), and drying mode is-50 ~-40 DEG C of frozen dryings or 110 ~ 125 DEG C of high temperature fluidized dryings.
6. a kind of technique utilizing plant petals to prepare natural dyestuff according to claim 1, is characterized in that: also comprise step 8) two step and pulverize: particulate state dyestuff is obtained powdered dye after ultrasonic grinding process.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510613675.8A CN105153742A (en) | 2015-09-24 | 2015-09-24 | Technology for preparing natural dye by means of plant flower pedals |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510613675.8A CN105153742A (en) | 2015-09-24 | 2015-09-24 | Technology for preparing natural dye by means of plant flower pedals |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102911520A (en) * | 2012-11-12 | 2013-02-06 | 沈阳信达信息科技有限公司 | Henna vegetable dye preparation method |
| CN103030993A (en) * | 2012-11-10 | 2013-04-10 | 新疆维吾尔自治区中药民族药研究所 | Process method for extracting coreopsis tinctoria nutt food colorant |
| CN103773063A (en) * | 2014-01-16 | 2014-05-07 | 河南科技大学 | Process for preparing natural plant dye from first case of red |
-
2015
- 2015-09-24 CN CN201510613675.8A patent/CN105153742A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103030993A (en) * | 2012-11-10 | 2013-04-10 | 新疆维吾尔自治区中药民族药研究所 | Process method for extracting coreopsis tinctoria nutt food colorant |
| CN102911520A (en) * | 2012-11-12 | 2013-02-06 | 沈阳信达信息科技有限公司 | Henna vegetable dye preparation method |
| CN103773063A (en) * | 2014-01-16 | 2014-05-07 | 河南科技大学 | Process for preparing natural plant dye from first case of red |
Non-Patent Citations (3)
| Title |
|---|
| 王岚岚等: "月季花红色素的提取及性质研究", 《食品工程》 * |
| 蒋新龙: "紫藤红色素的提取工艺及性质研究", 《浙江树人大学学报》 * |
| 许莹堂等: "玫瑰红色素提取工艺及性能研究", 《甘肃高师学报》 * |
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Application publication date: 20151216 |