CN107365512A - From a kind of method of the indigo natural dye of Radix Isatidis plant extract - Google Patents
From a kind of method of the indigo natural dye of Radix Isatidis plant extract Download PDFInfo
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- CN107365512A CN107365512A CN201610318311.1A CN201610318311A CN107365512A CN 107365512 A CN107365512 A CN 107365512A CN 201610318311 A CN201610318311 A CN 201610318311A CN 107365512 A CN107365512 A CN 107365512A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B7/00—Indigoid dyes
- C09B7/02—Bis-indole indigos
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B61/00—Dyes of natural origin prepared from natural sources, e.g. vegetable sources
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Abstract
Present invention mainly discloses a kind of method from the indigo natural dye of Radix Isatidis plant extract, the invention, by a series of technical method link steps, it is indigo to extract a kind of pure natural dye substance mainly using traditional Chinese medicine dye plant Radix Isatidis as raw material.A kind of method from the indigo natural dye of Radix Isatidis plant extract is provided, it mainly comprises the following steps：The first step, Radix Isatidis stem branches and leaves are extracted, the Radix Isatidis stem branches and leaves are put into the molten device of the water-butt being filled with water or pond and fermented 8 days；Second step, lime is put into the container；3rd step, stir, stir it is described addition limewash it is precipitated into slurry；4th step, the slurry is filtered off into impurity and moisture just obtains natural materials bipseudoindoxyl dye.The natural dye product, raw material sources are enriched, and production cost is low, and production equipment is simple, and extractive technique method is easy, and the pollution to environment is reduced in product extraction process, improve the social benefit of product.
Description
Art
The present invention relates to a kind of integrated application of natural dyeing material of therefrom medicine plate indigo plant root plant extract, belong to natural dyeing technical field, and in particular to a kind of method from the indigo natural dye of Radix Isatidis plant extract.
Technical background
Radix Isatidis (conventional alias：Indigo-blue, indigo root, manyflower glorybower root) it is a kind of Chinese medicine.Classification system：Isatis tinctoria, also known as：Woaded blue, mountain indigo plant, great Lan roots, rhizoma et radix baphicacanthis, Lan Longgen, earth ridge root etc., belong to woaded blue genus isatis kind, biennial herb plant, the high about 50-100cm of plant, are grown on the place of the sand loam of height above sea level 600-2800 rice.
Its whole body of Radix Isatidis is all precious：Its root, stem, leaf can be used as medicine, while also be machined to Pure natural dye -- indigo main material.
Natural dye refer to it is being obtained from plant, animal or mineral resources, without artificial synthesized, the little or no dyestuff by chemical process.Natural dye can be divided into vegetable colour, animal dye and mineral dye according to source, wherein based on vegetable colour.
Pure natural dye as described herein -- indigo is a kind of Radix Isatidis plant extract containing blue dyes, is a kind of pure natural vegetable colour.Indigo natural dye is that China invents and applied earliest, is the blue figured cloth of dye and the dyestuff of batik, the cloth spent with bipseudoindoxyl dye dye seal carving is can see in many folk custom museums.Bipseudoindoxyl dye in modern printing and dyeing industry is no longer processed with natural plants to be extracted, and is chemical synthesis, and its unavoidable reality of the dyestuff of chemical synthesis, is exactly safety issue, mainly dyestuff and the security of dyeing.It will be appreciated that bipseudoindoxyl dye is a kind of vat, it is initially pure natural, that is, extract and be process from bluegrass.And the bipseudoindoxyl dye of chemical synthesis is artificial synthesized, in its dyeing course for security, natural bipseudoindoxyl dye is obviously more indigo than chemical synthesis high.Functionally, natural bipseudoindoxyl dye also has certain antibiotic and sterilizing effect in itself, and this is artificial synthesized indigo incomparable.Advocating green today, people more pay attention to the Environmental Safety of cloth, focus on the natural sex of dyestuff, and therefore, indigo current fully natural green environment-friendly dye is one of natural dye rather well received in the world.
Radix Isatidis plant is both a kind of main material of natural dye, while is a kind of Chinese medicine again, and thus it is also a kind of Chinese medicine natural dye.
Extracted in the indigo biology plant from Radix Isatidis mentioned herein, be a kind of Chinese medicine natural dye, its being compatible with the environment property is good, biodegradable；During actual tint applications, its drug activity composition and flavor component are absorbed together with pigment by fabric, make the fabric after dyeing that there is special medicinal health-care function, such as antibacterial, anti-inflammatory, insect prevention, antiallergy, antitumor, anti-oxidant, radiation proof, be depressured, stimulate circulation.Therefore, the enhancing with mankind's environmental consciousness and the pay attention to day by day to own health, become focus again by the research of the natural dye of raw material and application of Chinese medicine, receive the favor of people.Therefore, an important field having a extensive future of the indigo extraction application of Chinese medicine natural dye and natural resources of Chinese medicinal materials exploitation.
Natural dye is nontoxic, to skin without anaphylaxis and carcinogenicity.With preferable biodegradability and Environmental compatibility.Pure natural dye is taken from plant, is organic compound, and intensity is relatively low, and absorption spectrum is wider.Most natural dyes are completely soluble, but the solubility of dyestuff diminishes after purification, and hydroxyl is contained in partly soluble dye molecule, add alkaline matter, can improve its solubility.Its color and luster is soft, naturally characteristic, possesses vast potential for future development in the fields such as high grade true silk product, health care underwear, home textile product, adornment.
Due to the climatic environment that the county is advantageous, suitable temperature, the growth of Radix Isatidis plant is especially suitable for, in recent years, the plantation of Chinese medicine plant -- Radix Isatidis has turned into the maximum base in Guangxi, the yield whole district first, turns into national natural dye -- indigo extraction raw material production base.
Prior art
Radix Isatidis plant is both a kind of Chinese medicine, is best Pure natural dye-indigo material extraction raw material again, there is applicating history for a long time in China.It is initially come use of curing the disease as Chinese medicine, applied next to that being used as on poultry, pig-breeding on feed or additive, then it is used for extracting indigo natural dye raw material of substance again, played a significant role in fields such as pure silk products, health care underwear, home textile product, adornments, promote the development of industry to greatest extent.
Such as application number：CN201610001243.6 patent of invention, a kind of external plaster for being used to treat respiratory inflammation disclosed in it, using the achene of Siberian cocklebur, Ligusticum wallichii, Radix Isatidis, radix glycyrrhizae, the root of Dahurain angelica as major ingredient, it is aided with borneol, cinnabar, natural honey, external plaster is made by techniques such as sterilizing-drying, crushing, stirring, packing, sterilization, coolings, in main material used in the invention, Radix Isatidis is intended only as 1 taste main material to use, and what it was solved is a kind of medication problem of Radix Isatidis Chinese medicine；
Application number：CN201511026546.5 patent of invention, a kind of poultry feed additive announced, belong to the technical field that animal feed is made using plant material, Chinese medicinal material.The poultry feed additive of the invention includes the Radix Astragali, Ligusticum wallichii, Radix Angelicae Sinensis, the root of herbaceous peony, cynanchum wilfordii, granatum, windproof, dried orange peel, the fruit of Chinese magnoliavine, hawthorn, rheum officinale, the bark of official magnolia, radix scutellariae, radix bupleuri, the tuber of pinellia, the dried immature fruit of citron orange, peach kernel, the root bark of Chinese wolf-berry, selfheal, the capsule of weeping forsythia, honeysuckle, Radix Isatidis.In raw material used in the invention, Radix Isatidis is also one of 1 taste raw material, is directly used as feed addictive, and what it was solved is Radix Isatidis application problem on poultry farming；
Application number：CN201511019405.0 patent of invention, involved a kind of antibacterial peptide activity additive agent for chicken feed and preparation method thereof, it is made up of component A and component B, wherein component A is by corn flour 300-500 parts by weight, pomace 20-30 parts by weight, DDGS10-15 parts by weight, corn protein powder 20-30 parts by weight and dregs of beans 100-200 parts by weight are prepared through the fermentation of composite fermentation microbial inoculum；Component B is prepared by garden burnet 8-10 parts by weight, Radix Isatidis 12-18 parts by weight, cordate houttuynia 8-12 parts by weight, elegant jessamine 3-5 parts by weight, pot marigold 5-7 parts by weight, the parts by weight of radix bupleuri 1, rice bran 50-80 parts by weight.Selected Radix Isatidis natural material in the feed addictive of the invention, and other selected raw materials are fermented or the feed addictive of natural, green, safety a kind of has been made in extraction, and what it was solved is application problem of the Radix Isatidis on poultry farming；
Application number：CN201511003037.0 patent of invention, a kind of disclosed Sanhuang chick Chinese herbal feed, the Sanhuang chicken are made up of with Chinese herbal feed the raw material of following parts by weight：Corn flour 50-60 parts, winter wheat 6-10 parts, cabbage 10-20 parts, wheatfeed 20-30 parts, schizonepeta 6-8 parts, radix bupleuri 3-5 parts, Radix Isatidis 4-6 parts, the membrane of a chicken's gizzard 5-7 parts, red bean powder 10-20 parts, Radix Astragali 6-10 parts, Chinese cassia tree 5-7 parts, bitter dish 5-7 parts；In the Sanhuang chicken Chinese herbal feed of the invention, Radix Isatidis is only used as 1 taste Chinese medicine material, and what it was solved is a purposes of Radix Isatidis feed applications on poultry farming；
Application number：CN201510932836.X patent of invention, a kind of its disclosed promotion live pig skeleton growth educate mid-term fodder compound, are related to pig-breeding technical field, are prepared by the component of following mass fraction meter：Fish meal, Os Sus domestica powder, wheat bran, corn, lard, hawthorn, Radix Isatidis, sunflower oil, egg, pig bone scald, pigskin, tea seed powder, waxgourd peel, carrot, beef tendon, amino acid, goat milk, pearling cone meal.In composition of raw materials selected by the invention, Radix Isatidis is the main raw material of 1 taste, this composition of raw materials, the growth of live pig skeleton can be improved, promote the healthy growth of the live pig rapid shaping increase live pig bodily form, increase live pig resistance against diseases, improve live pig appetite, pig-breeding benefit can be improved, what it was solved is a purposes problem of Radix Isatidis feed applications on pig-breeding；
And for example application number：CN201410611399.7 patent of invention, the preparation method of indigo pigment is extracted in a kind of disclosed leaf from indigo naturalis, it is concretely comprised the following steps：A, net system：Raw material indigo naturalis leaf, eluted successively by manual pick, selection by winnowing and service sink, obtain clean indigo naturalis leaf；B, low temperature soaks：Clean indigo naturalis leaf is soaked in low temperature antichloration softened water, obtains pure indigo naturalis leaf；C, air-dry and smash：Pure indigo naturalis leaf is placed on operating desk and air-dried, then is crushed with high speed Universal pulverizer, obtains dry indigo naturalis leaf powder；D, high temperature soaks：Dry indigo naturalis leaf powder, sodium hydrate solid and dechlorination softening hot water mix in pigment extractor in proportion, obtain solidliquid mixture；E, filter：Solidliquid mixture filters through membrane filter, obtains filtrate；F, concentrate：Filtrate is passed through vacuum evaporator concentration, obtains concentrate；G, refrigerate：Concentrate refrigerates, and obtains indigo pigment.What it was solved is the technical method from the indigo pigment of indigo naturalis leaf plant extract；
Application number：CN201410066631.3 patent of invention, its disclosed set with wild green grass or young crops extract indigo method, and the invention belongs to natural plant dye to extract processing method, and indigo method is extracted using wild green grass or young crops tree (Indigofera suffruticosa Mill.).The conventional method that this method first extracts indigo mud with wild blue or green tree branches and leaves obtains indigo mud, indigo mud is purified again, in purge process, hydrochloric acid is added, the wild blue or green glucoside thing hydrolysis of catalysis, accelerates the free of indoxyl, and it also occur that keto-acid tautomerism in pH9 alkaline solution, condensation reactions occur for 2 molecule indolones, are oxidized to indigo, slowly sink in suspension state not soluble in water.So purge process while the removal of impurity is gone, adds indigo yield, also produce and discharge without harmful substance, so safety and environmental protection.What it was solved is to extract a kind of indigo technical method problem with wild blue or green tree；
Application number：CN201320836916.1 utility model patent, the disclosed technical field from plant extract active ingredient, the production line of indigo indigo red is extracted more particularly to a kind of efficiently separated from Radix Isatidis, it includes setting gradually pulverizer, centrifugal extractor, vacuum concentrator and storage device, wherein, the centrifugal extractor is provided with supersonic generator.Relative to transmission water cooking and extraction method, the method that the utility model utilizes Centrifugical extraction, and produce ultrasonic wave using supersonic generator and effect is imposed to the Radix Isatidis material in solvent, the dissolving of indigo indigo red in Radix Isatidis can be effectively improved, simultaneously, because the extraction of production line of the present utility model and vacuum concentrator are carried out under relatively low state of temperature, the loss of the indigo indigo red with sublimability can effectively be reduced, extraction effect is good, and what it was solved is the technical problem from the indigo indigo red production line of Radix Isatidis separation and Extraction；
Application number：CN201510745884.8 patent of invention, a kind of deep color dyeing method of bipseudoindoxyl dye of its disclosed cotton fiber, this method is that upper dye process of the bipseudoindoxyl dye to cotton fiber is completed in decamethylcyclopentaandoxane (D5) non-aqueous media, and its method is as follows：(1) concise, washing and dehydration are carried out to cotton fiber, controls its final liquid carrying rate, standby dye；(2) the indigo leuco compound of high concentration is prepared；(3) first the indigo leuco compound of appropriate high concentration is added in D5 and is configured to dye liquor, then the cotton fiber with certain liquid carrying rate is inserted in the non-aqueous dye liquor and dyed；(4) after dyeing, oxidation processes, soap boiling is then carried out, removes surface loose colour.Its technology for mainly solving of the present invention be using bipseudoindoxyl dye in D5 on contaminate cotton fiber, the decomposition of oxidation and sodium hydrosulfite of the indigo leuco compound in dyeing course can effectively be suppressed, reach once hyperchromatic effect, greatly simplify dyeing process, shorten dyeing time, improve work efficiency, cost-effective once dye dark color technical method；
Application number：CN201510626026.1 patent of invention, the extraction process of vegetable indigo is extracted in a kind of its disclosed leaf from acanthaceous indigo, and vegetable indigo contaminates dyeing for the bar of wool fiber bar.Particular content is as follows：The acanthaceous indigo leaf of collection is fully cleaned, goes the removal of impurity, after naturally dry or low temperature drying, crushed in pulverizer, obtain acanthaceous indigo leaf plant granulated slag, the mixed solution of second alcohol and water is poured into acanthaceous indigo leaf plant granulated slag, using ultrasonication, vegetable indigo extract solution is obtained.High speed centrifugation is carried out to extract solution, after going the removal of impurity, vacuum concentration drying is carried out, obtains vegetable indigo powder.Vegetable indigo powder is dissolved in soft water, and sequentially adds caustic soda and sodium hydrosulfite, is stirring evenly and then adding into bar dye dye vat, the wool top that will be dyed is totally submerged.Heating starts to dye, and wool top is taken out to dehydration after held for some time from dye liquor.Wool top is moved rapidly into air blower, and swiftly flowing air aoxidizes to wool top, until wool top becomes au bleu by yellow green.Wool top is put back into dye vat, is soaped, and is rinsed again with clear water after soaping, and drying, obtains the wool tops of vegetable indigo dyeing, it solves a kind of extraction process of vegetable indigo and a kind of method of dyeing wool bar.
Application number：CN201510334173.1 patent of invention, the indigo and method of indigo red in a kind of involved ultrasound assisted extraction folium isatidis, dry Dyers Woad Leaf is taken to be mixed with the methanol solution that volume fraction is 55~95% first, the solid-liquid ratio of Dyers Woad Leaf and methanol solution is 1g: (10~50) mL, then ultrasound assisted extraction is carried out, obtains indigo and indigo red total extract solution.The invention is using folium isatidis as raw material, using ultrasound assisted extraction method, make the clasmatosis of folium isatidis in a short time, discharge the indigo and indigo red in cell, methanol solution that volume fraction is 55~95% and it is beneficial to indigo and indigo red be fully dissolved out and spread with the solid-liquid ratio of folium isatidis, the penetration capacity of ultrasonic wave can be ensured simultaneously, mass-transfer efficiency is high, produce cooperative effect, so as to effectively improve indigo and indigo red extraction efficiency, what it was solved is that indigo and a kind of indigo red method how is extracted from folium isatidis.
The purpose of invention
Currently, the overwhelming majority of bipseudoindoxyl dye is all the industrial dye using the synthesis of industrial chemical means, the waste water polluted to environment, waste gas can be produced during the synthetic dyestuffs of manufacture, in today that environmental protection concept is rooted in the hearts of the people, the application prospect of such a industrial dye is not expected.Additionally due to industrial dye is by chemical synthesis, the people for wearing the clothes contaminated using such a dyestuff for a long time can be had adverse effect on, such as stimulation skin and snugness of fit are low etc., but these problems are not present in Pure natural dye.
Pure natural dye -- the current generally existing raw material sources of indigo extraction material are less, the problems such as upper dye native cellulose fibre is difficult, color fastness is poor, color is dull be present, make its development and application by a definite limitation, but due to directly being extracted from natural dye plant, have biodegradable；In dyeing course, its drug activity composition and flavor component are absorbed together with pigment by fabric, the fabric after dyeing is had special medicinal health-care function.Therefore, the enhancing with mankind's environmental consciousness and the pay attention to day by day to own health, become focus again by the research of the natural dye of raw material and application of Chinese medicine, receive the favor of people.Therefore, further exploitation natural dye material-indigo extraction and application be an important field having a extensive future.
The content of invention
The major technique path of the present invention：(1) material → (2) extract Radix Isatidis → (3) immersion → (4) input lime → (5) pull out Radix Isatidis stem branches and leaves → (6) be put into limewash stirring, agitation → (7) stand → (8) filter out clear water → (9) finished product.
Specific embodiment：
(1) material：Use 1 year or the stem branches and leaves at biennial Radix Isatidis Plant aboveground position is raw materials；
(2) Radix Isatidis is extracted：After Radix Isatidis growth 5-7 months, the Radix Isatidis plant when plant is luxuriant in branches and leaves at the 10 cm positions away from the ground extracts fresh and tender stem branches and leaves, weeds, impurity is removed, to improve the quality of indigo natural dye；
(3) soak：The water-butt that the fresh and tender Radix Isatidis stem branches and leaves cut off input is filled with water carries out soaking fermentation in pond, fermentation time is 8 days or so, makes blue glucoside be fully dissolved out coming from the histocyte of plant, day-light saving time is slightly shorter, and autumn and winter is longer in the daytime；
(4) lime is put into：Lime powder is put into the water-butt or pond container for filling with Radix Isatidis stem branches and leaves, indigo material is fully oozed out, meanwhile, make the Radix Isatidis axis branches and leaves without putrefaction of soaking fermentation；
(5) Radix Isatidis stem branches and leaves are pulled out：Radix Isatidis stem branches and leaves after soaking and fully oozing out indigo material are fished for and pulled out after wringing out；
(6) limewash stirring, agitation are put into：Soak after Radix Isatidis stem branches and leaves are pulled out totally places into a small amount of limewash, then fallen down again after playing soak with water ladle great waves, soak is formed stirring and agitated conditions, successively repeat, strengthen its and decompose indigo mass-energy power, about 1-2 hour of time or so；
(7) stand：By stirring, after agitation treatment, seen indigo matter blueness it is gluey when, just stop stirring or agitation, by soaking water solution left standstill, time of repose about 4-5 days；
(8) clear water is filtered out：After stewing process, indigo material decomposes through lime, gluey in navy blue, you can clear water is poured out, then removes the clear water filtered out after standing 1-2 days again, indigo blue glue；
(9) finished product：The indigo mud of the indigo blue colloid substance-pasty state obtained after filtering out clear water, indigo mud as indigo natural dye product, dried or dried, wear into powdery, be exactly finished product.
The effect of invention
The present invention is using 1 year or the stem branches and leaves at biennial Radix Isatidis Plant aboveground position is raw materials, an application technology by a series of technical method step from the indigo natural dye of Radix Isatidis plant extract, the value and economic benefit in Chinese medicinal plant Radix Isatidis plant development are played to greatest extent, it has further opened up a kind of new application approach of natural plant dye, new growth engines is cultivated, application market prospect is very extensive, and economic boost space is boundless.
Raw material sources of the present invention enrich, and low production cost, production equipment is simple, and production simple and convenient extraction, practicality, indigo natural dye recovery rate is high, and whole production process does not have harmful substance to produce and discharge, very safety and environmental protection.
Claims (5)
1. from a kind of method of the indigo natural dye of Radix Isatidis plant extract, its feature includes：Material
Selection and finished product extracting method.
2. according to described in claim 1 from one kind side of the indigo natural dye of Radix Isatidis plant extract
Method, it is characterised in that finished product extracting method is as follows：
(1) material：Use 1 year or the stem branches and leaves at biennial Radix Isatidis Plant aboveground position is originals
Material；
(2) Radix Isatidis is extracted：After Radix Isatidis growth 5-7 months, when plant is luxuriant in branches and leaves away from ground
The Radix Isatidis plant at upper 10 cm position extracts fresh and tender stem branches and leaves, removes weeds, impurity,
To improve the quality of indigo natural dye；
(3) soak：The water-butt that the fresh and tender Radix Isatidis stem branches and leaves cut off input is filled with water enters in pond
Row soaking fermentation, fermentation time are 8 days or so, make blue glucoside be fully dissolved out coming from the histocyte of plant,
Day-light saving time is slightly shorter, and autumn and winter is longer in the daytime；
(4) lime is put into：Lime is put into the water-butt or pond container for filling with Radix Isatidis stem branches and leaves
Powder, indigo material is set fully to ooze out, meanwhile, the Radix Isatidis axis branches and leaves of soaking fermentation is stale-proof
It is rotten；
(5) Radix Isatidis stem branches and leaves are pulled out：By the Radix Isatidis after soaking and fully oozing out indigo material
Stem branches and leaves are fished for wring out after pull out；
(6) limewash stirring, agitation are put into：Soak after Radix Isatidis stem branches and leaves are pulled out totally is again
A small amount of limewash is put into, is fallen down again after then playing soak with water ladle great waves, soak is formed stirring
And agitated conditions, successively repeat, strengthen it and decompose indigo mass-energy power, about 1-2 hour of time
Left and right；
(7) stand：By stirring, after agitation treatment, seen indigo matter blueness it is gluey when, with regard to stopping stirring
Mix or stir, by soaking water solution left standstill, time of repose about 4-5 days；
(8) clear water is filtered out：After stewing process, indigo material decomposes through lime, in navy blue
It is gluey, you can clear water is poured out, then removes the clear water filtered out after standing 1-2 days again, indigo blue glue
Shape；
(9) finished product：The indigo mud of the indigo blue colloid substance-pasty state obtained after filtering out clear water, it is
Indigo natural dye product, indigo mud is dried or dried, wears into powdery, is exactly finished product.
3. according to described in claim 1 from one kind side of the indigo natural dye of Radix Isatidis plant extract
Method, it is characterised in that the material is Radix Isatidis plant, and the Radix Isatidis stem branches and leaves that extract are to plant
Its fresh and tender stem branches and leaves is extracted after strain is luxuriant in branches and leaves.
4. a kind of method according to claim 1 from the indigo natural dye of Radix Isatidis plant extract,
It is characterized in that the water-butt is wooden material bucket or plastic cement bucket, described pond container is cement water
Pond.
5. a kind of method according to claim 1 from the indigo natural dye of Radix Isatidis plant extract,
It is characterized in that the soaking fermentation is carried out under the conditions of natural temperature.
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| CN110760201A (en) * | 2019-12-12 | 2020-02-07 | 杭州彩润科技有限公司 | Method for efficient submerged fermentation extraction and comprehensive utilization of isatis root vegetable dye |
| CN112824386A (en) * | 2019-11-20 | 2021-05-21 | 哈工大机器人南昌智能制造研究院 | Method for continuously preparing indigo naturalis, indigo and indirubin from fresh leaves of kale |
| CN114381951A (en) * | 2020-10-22 | 2022-04-22 | 苏州中纺学面料产业研究院 | Preparation method of natural antibacterial yarn, natural antibacterial yarn and fabric |
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| CN112824386A (en) * | 2019-11-20 | 2021-05-21 | 哈工大机器人南昌智能制造研究院 | Method for continuously preparing indigo naturalis, indigo and indirubin from fresh leaves of kale |
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| CN110760201B (en) * | 2019-12-12 | 2021-06-29 | 杭州彩润科技有限公司 | Method for efficient submerged fermentation extraction and comprehensive utilization of isatis root vegetable dye |
| CN114381951A (en) * | 2020-10-22 | 2022-04-22 | 苏州中纺学面料产业研究院 | Preparation method of natural antibacterial yarn, natural antibacterial yarn and fabric |
| CN114381951B (en) * | 2020-10-22 | 2023-10-03 | 苏州中纺学面料产业研究院 | Preparation method of natural antibacterial yarn, natural antibacterial yarn and fabric |
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