CN110292536B - Electrochromic keratin fiber dyeing method and device - Google Patents
Electrochromic keratin fiber dyeing method and device Download PDFInfo
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- CN110292536B CN110292536B CN201910553489.8A CN201910553489A CN110292536B CN 110292536 B CN110292536 B CN 110292536B CN 201910553489 A CN201910553489 A CN 201910553489A CN 110292536 B CN110292536 B CN 110292536B
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D19/00—Devices for washing the hair or the scalp; Similar devices for colouring the hair
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/35—Ketones, e.g. benzophenone
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/36—Carboxylic acids; Salts or anhydrides thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
- A61K8/4973—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with oxygen as the only hetero atom
- A61K8/498—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with oxygen as the only hetero atom having 6-membered rings or their condensed derivatives, e.g. coumarin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/67—Vitamins
- A61K8/676—Ascorbic acid, i.e. vitamin C
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/73—Polysaccharides
- A61K8/736—Chitin; Chitosan; Derivatives thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q5/00—Preparations for care of the hair
- A61Q5/10—Preparations for permanently dyeing the hair
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/42—Colour properties
- A61K2800/43—Pigments; Dyes
- A61K2800/432—Direct dyes
- A61K2800/4324—Direct dyes in preparations for permanently dyeing the hair
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Abstract
The invention relates to a keratin fiber dyeing method and a keratin fiber dyeing device. The basic steps of the method comprise dispensing, coloring and color changing, or dispensing, color changing and coloring, or color changing, coloring, liquid coating and color changing. The invention not only takes natural pigments as main raw materials, can avoid harm to the environment and harm to human bodies, but also skillfully utilizes the pH sensitivity of the pigments and takes advantage of simple electrolysis measures, thereby generating the color-changing effect of various colors and leading the dyed product to have more personalized decoration.
Description
Technical Field
The invention relates to a fiber dyeing method, in particular to an electrochromic dyeing method of alpha keratin fibers (keratin fibers such as human hair, wool and yak hair) based on natural pH-sensitive pigments, and also relates to a corresponding dyeing device (such as a dyeing comb, a dyeing hairpin and a dyeing container).
Background
In order to avoid the environmental harm of dyes and the potential harm to human bodies caused by the application of the dyes in hair dyeing, natural and safe pigments such as anthocyanin and curcumin are more and more concerned in recent years (see Chinese patent documents with the application number of 201410307331.X, the name of short-chain oligonucleotide methanol fixed anthocyanin dyeing method and the application number of 201110376414.0, the name of natural hair dye prepared by plant pigment curcumin and hair dyeing method thereof).
However, to the applicant's knowledge, there is a limitation in that existing colorants can only dye one color at a time.
Disclosure of Invention
The invention aims to: in view of the limitations of the prior art, an electrochromic dyeing method for keratin fibers is provided, so that one dyeing agent can obtain a desired color change effect of multiple colors, and a corresponding dyeing device is provided.
In order to achieve the above objects, the applicant has conducted intensive research and experiments on natural pigments such as anthocyanins and curcumin, and found that these pigments, which can be used as dyes, have not only three primary colors capable of forming various desired colors, but also a sensitivity of pH, i.e., are susceptible to change in color with a change in pH. For example, anthocyanins exist mainly in acylated structures, including pelargonidin (Pg), cyanidin (Cy), delphinidin (Dp), peonidin (Pn), morning glory pigment (Pt), malvidin (Mv), etc., which range in natural color from red to blue and have characteristics that vary with changes in pH; the curcumin is mainly derived from Curcuma aromatica (Curcuma aromatica Salisb) root tuber, Curcuma longa (C.longa L.) rhizome, and Acorus calamus (Acorus calamus L.) rhizome of Araceae, and is yellow in natural color.
On the basis of this study, the applicant has proposed one of the essential steps of the process for dyeing the electrochromic keratin fibres according to the invention as follows:
first, preparing the agent
Mixing the dye taking anthocyanin and curcumin as pigments with at least two of three primary colors of red, yellow and blue to obtain the dye with the required color; adding a color fixing agent and an electrolyte aqueous solution to prepare a coloring agent;
second step, coloring
Uniformly coating the prepared coloring agent on the keratin fiber;
third step, color change
A DC electrode is loaded on the keratin fibers coated with dye, so that the anode and cathode of the DC electrode are respectively acidic and alkaline due to the electrolysis of the electrolyte, so that the dye exhibits various color discoloration effects due to its pH sensitivity.
The second basic step of the electrochromic keratin fiber dyeing method of the invention is as follows:
first, preparing the preparation
Mixing the dye taking anthocyanin and curcumin as pigments with at least two of three primary colors of red, yellow and blue to obtain the dye with the required color; adding a color fixing agent and an electrolyte aqueous solution to prepare a coloring agent;
second, color change
Placing the prepared coloring agent into a container, and loading a direct current electrode to ensure that the vicinities of an anode and a cathode of the direct current electrode are respectively acidic and alkaline due to the electrolysis of an electrolyte, so that the colorant exhibits various color discoloration effects due to the pH sensitivity of the dye in it;
third, coloring
The keratin fibers are colored by immersing them in a color-changing colorant.
The third basic step of the electrochromic keratin fiber dyeing method is as follows:
first, color matching
Mixing the dye which is prepared by taking anthocyanin and curcumin as pigments and mixing the pigment with a color fixing agent through at least two of three primary colors of red, yellow and blue to obtain the dye with the required color;
second step, coloring
Uniformly coating the prepared dye on the keratin fiber;
thirdly, coating the solution
Spraying an aqueous electrolyte solution on the colored keratin fibers;
step four, changing color
The direct current electrode is loaded on the keratin fiber coated with the electrolyte aqueous solution, so that the vicinities of an anode and a cathode of the direct current electrode are respectively acidic and alkaline due to the electrolysis of the electrolyte, and the dye on the keratin fiber can sensitively present a plurality of color changing effects due to the pH sensitivity.
It is easy to see that the invention not only takes natural pigments as main raw materials, can avoid the harm to the environment and the harm to human body, but also skillfully utilizes the pH sensibility of the pigments and takes advantage of simple electrolysis measures, thereby generating the color-changing effect of various colors and leading the dyed products to have more personalized decoration.
Drawings
The invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an apparatus according to a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a device according to a second embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an apparatus according to a third embodiment of the present invention.
FIG. 4 is a reference diagram of anthocyanin and curcumin molecular formulas.
Detailed Description
Example one
The electrochromic keratin fiber dyeing method is used for dyeing hair, and comprises the following specific steps:
first, preparing the agent
Blending 7.5 g of blue anthocyanin and 7.5 g of yellow curcumin as dyes to obtain green dyes, and adding a color fixing agent and an electrolyte aqueous solution to prepare a pasty coloring agent.
The anthocyanin and curcumin are extracted by solid phase extraction, and their molecular formula is shown in figure 4.
Considering that chitosan is a derivative obtained by deacetylating chitin (chitosan) in a concentrated alkali solution, is a slightly yellowish amorphous, semitransparent and slightly pearl-luster solid, is insoluble in water, an alkali solution, dilute sulfuric acid and phosphoric acid, and is soluble in inorganic acids such as dilute hydrochloric acid and nitric acid and organic acids; the chitosan with good filamentation and film-forming properties can be dissolved into solution in a proper solvent and used in the coating and spinning processes, and the acidic chitosan solution can be tightly combined with alpha keratin through amino and hydroxyl. Therefore, in this embodiment, an organic acid (especially acetic acid, ascorbic acid) solution of chitosan is used as the color fixing agent, specifically, 2.5g of chitosan with a deacetylation degree of 92% is added into 10mL of 10% acetic acid solution, and 55mL of deionized water is poured and stirred for dilution.
The electrolyte aqueous solution adopts aqueous solution of salt or sodium citrate with good effect. This example was prepared by mixing 5 grams of salt as the electrolyte with 30ml of water.
Second step, coloring
The prepared coloring agent is uniformly applied on the hair in the same way as the conventional hair dyeing, and can be applied by hands or a brush.
Third step, color change
The direct current electrode (6V-12V) is loaded on the hair coated with the coloring agent by using the hair dyeing clip shown in figure 1, the vicinities of the anode and the cathode of the direct current electrode are respectively acidic and alkaline due to the electrolysis of the electrolyte, so that the dye on the hair is changed in color due to the sensibility of the pH sensitivity, the required color change hair dyeing effect is presented, and the hair dyeing clip is cleaned after about 20 minutes.
The dyeing hairpin shown in figure 1 is composed of a pair of anode clip 1 and cathode clip 2 made of insulating material, one end of the anode clip 1 and one end of the cathode clip 2 are respectively provided with an elastic bayonet lock 3 and a buckle 4 which can be buckled, and the opposite surfaces of the anode clip 1 and the cathode clip 2 are respectively embedded with a cathode 5 and an anode 6 which are powered by a battery power supply. When the hair dye clip is used, the clamping pin is pressed into the buckle, so that the hair coated with the dyeing agent is clamped by the clamping piece, and after the cathode and the anode are electrified, the electrolyte nearby the clamping piece can be electrolyzed to be acidic or alkaline, so that the corresponding color change of the dye is caused.
Compared with the prior art, the embodiment not only avoids water pollution of the coloring agent and harm to human bodies, but also enables the decoration effect of hair dyeing to be more flexible and personalized through the unique color changing effect of the hair dye, adopts the dyeing hair clip with an obstructed shape to show various patterns on the hair, and lays a foundation for wearing the dyeing hair clip embedded with the integrated circuit and controlling the color changing pattern through the operation of the mobile phone.
Example two
The electrochromic keratin fiber dyeing method is used for dyeing wool, and comprises the following specific steps:
first, preparing the preparation
Mixing dyes taking anthocyanin and curcumin as pigments through three primary colors of red, yellow and blue to obtain the dye with required color; adding a color fixing agent and an electrolyte aqueous solution to prepare a coloring agent;
second step, color change
Placing the prepared coloring agent into a coloring container shown in fig. 2, loading a direct current electrode, and enabling the vicinities of an anode and a cathode of the direct current electrode to respectively present acidity and alkalinity due to electrolysis of an electrolyte, so that the coloring agent can sensitively present a plurality of color changing effects due to the pH sensitivity of the dye;
third, coloring
The wool fibers are dipped into a color-changing coloring agent for coloring.
The dyeing device used in this embodiment is a dyeing container shown in fig. 2, and is formed by pairing an anode half pot body 1' ″ and a cathode half pot body 2 ″ which are insulated from each other, wherein the opposite sides of the anode half pot body 1 ″ and the cathode half pot body 2 ″ are provided with a flange 3 ″ and a clamping groove 4 which can be buckled, and the inner surfaces of the anode half pot body 1 ″ and the cathode half pot body 2 ″ are respectively embedded with a cathode 5 ″ and an anode 6 which are powered by a battery power supply. When the dyeing agent is used, the dyeing agent is poured into the container, the direct-current power supply is started, the electrolytes nearby the container are electrolyzed to be acidic or alkaline after the cathode and the anode are electrified, so that the dyeing agent is subjected to corresponding color change, the dyeing agent is subjected to different colors after the pH value is changed, and the keratin fibers to be dyed are placed in the dyeing agent for dyeing.
EXAMPLE III
The specific steps of the electrochromic dyeing method for keratin fibers of the present embodiment are substantially the same as those of the first embodiment, except that the dyeing device used is a dyeing comb as shown in fig. 3, the dyeing comb is composed of paired anode comb plates 1 'and cathode comb plates 2' made of insulating materials, the anode comb plates 1 'and cathode comb plates 2' are respectively provided with anode comb handles 3 'and cathode comb handles 4' which can be buckled with each other, and the anode comb handles 3 'and cathode comb handles 4' respectively extend out of comb teeth with cathodes 5 'and anodes 6' embedded on opposite surfaces for supplying power to a battery power supply.
When the comb is used, the anode comb sheet and the cathode comb sheet are buckled to form a complete comb, hair coated with the coloring agent is combed after the comb is electrified, and the electrolyte at the position where the comb teeth electrode passes is electrolyzed to be acidic or alkaline, so that the dye is subjected to corresponding color change. Therefore, the method not only has the beneficial effect of the first embodiment, but also has randomness because the change of the hair color is influenced by the combing mode.
In addition to the above embodiments, the present invention may have other embodiments. For example, oily or other auxiliary ingredients such as perfume, coconut oil, etc. may be added to the coloring agent as appropriate. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the present invention.
Claims (9)
1. An electrochromic keratin fibre dyeing process, characterized in that it comprises the following steps:
first, preparing the preparation
Mixing the dye taking anthocyanin and curcumin as pigments with at least two of three primary colors of red, yellow and blue to obtain the dye with the required color; adding a color fixing agent and an electrolyte aqueous solution to prepare a coloring agent;
second step, coloring
Uniformly coating the prepared coloring agent on the keratin fiber;
third step, color change
The direct current electrode is loaded on the keratin fiber coated with the coloring agent, so that the vicinities of an anode and a cathode of the direct current electrode are respectively acidic and alkaline due to the electrolysis of the electrolyte, and the dye sensitively presents a plurality of color changing effects due to the pH sensitivity.
2. An electrochromic keratin fibre dyeing process, characterized in that it comprises the following steps:
first, preparing the preparation
Mixing the dye taking anthocyanin and curcumin as pigments with at least two of three primary colors of red, yellow and blue to obtain the dye with the required color; adding a color fixing agent and an electrolyte aqueous solution to prepare a coloring agent;
second step, color change
Placing the prepared coloring agent in a container, loading a direct current electrode, and enabling the vicinities of an anode and a cathode of the direct current electrode to be respectively acidic and alkaline due to the electrolysis of an electrolyte, so that the coloring agent can sensitively present a plurality of color changing effects due to the pH sensitivity of the dye;
third, coloring
The keratin fibers are colored by immersing them in a color-changing colorant.
3. An electrochromic keratin fibre dyeing process, characterized in that it comprises the following steps:
first, color matching
Mixing the dye which is prepared by taking anthocyanin and curcumin as pigments and mixing the pigment with a color fixing agent through at least two of three primary colors of red, yellow and blue to obtain the dye with the required color;
second step, coloring
Uniformly coating the prepared dye on the keratin fiber;
thirdly, coating the solution
Spraying an aqueous electrolyte solution on the colored keratin fibers;
step four, changing color
The direct current electrode is loaded on the keratin fiber coated with the electrolyte aqueous solution, so that the vicinities of an anode and a cathode of the direct current electrode are respectively acidic and alkaline due to the electrolysis of the electrolyte, and the dye on the keratin fiber presents a plurality of color changing effects due to the pH sensitivity.
4. Process for dyeing electrochromic keratin fibres according to any one of claims 1, 2 and 3, characterized in that: the color fixing agent adopts an organic acid solution of chitosan.
5. Electrochromic keratin fibre dyeing process according to claim 4, characterized in that: the electrolyte aqueous solution is sodium citrate aqueous solution.
6. Electrochromic keratin fibre dyeing process according to claim 5, characterized in that: the organic acid is acetic acid or ascorbic acid.
7. Dyeing hair clip for carrying out the process for dyeing electrochromic keratin fibres according to claim 1, characterized in that: the battery comprises an anode clamping piece and a cathode clamping piece which are made of insulating materials in pairs, wherein one end of the anode clamping piece and one end of the cathode clamping piece are respectively provided with an elastic clamping pin and a clamping buckle which can be buckled, and the surface opposite to the anode clamping piece and the cathode clamping piece are respectively embedded with a cathode and an anode which are powered by a battery power supply.
8. Dyeing vessel for carrying out the process for dyeing electrochromic keratin fibres according to claim 2, characterized in that: the anode half basin body and the cathode half basin body are oppositely formed by a pair of mutually insulated anode half basin bodies and cathode half basin bodies, flanges and clamping grooves which can be buckled are arranged on the opposite sides of the anode half basin body and the cathode half basin bodies, and a cathode and an anode which are powered by a battery power supply are respectively embedded on the inner surfaces of the anode half basin body and the cathode half basin bodies.
9. Dyeing comb for carrying out the process for dyeing electrochromic keratin fibres according to claim 3, characterized in that: the comb comprises an anode comb sheet and a cathode comb sheet which are made of insulating materials in pairs, wherein the anode comb sheet and the cathode comb sheet are respectively provided with an anode comb handle and a cathode comb handle which can be buckled with each other, and the anode comb handle and the cathode comb handle respectively extend out of the comb teeth of which the opposite surfaces are embedded with a cathode and an anode which are powered by a battery power supply.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006128807A2 (en) * | 2005-05-31 | 2006-12-07 | Siemens Aktiengesellschaft | Material for electrochromic layers |
| CN102423286A (en) * | 2011-11-24 | 2012-04-25 | 江南大学 | Natural hair dye prepared by using phytochrome curcumin and hair dyeing method of natural hair dye |
| CN104101528A (en) * | 2014-06-30 | 2014-10-15 | 广西医科大学 | Method for dyeing short-chain oligonucleotide through fixation of methanol and anthocyanidin |
| CN104762684A (en) * | 2015-04-01 | 2015-07-08 | 东华大学 | Curcumin-carried pH-response color-changing antibacterial fiber and preparation method thereof |
| CN105838350A (en) * | 2016-04-16 | 2016-08-10 | 吉林大学 | Electrochromic composite material and prepared electrochromic device |
| CN107429158A (en) * | 2015-03-13 | 2017-12-01 | 株式会社理光 | Electrochromic compounds, electrochromic compositions, electric driven color-changing part and electrochromism Light modulating device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014074812A1 (en) * | 2012-11-09 | 2014-05-15 | L'oreal | Methods for altering the color and appearance of hair |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006128807A2 (en) * | 2005-05-31 | 2006-12-07 | Siemens Aktiengesellschaft | Material for electrochromic layers |
| CN102423286A (en) * | 2011-11-24 | 2012-04-25 | 江南大学 | Natural hair dye prepared by using phytochrome curcumin and hair dyeing method of natural hair dye |
| CN104101528A (en) * | 2014-06-30 | 2014-10-15 | 广西医科大学 | Method for dyeing short-chain oligonucleotide through fixation of methanol and anthocyanidin |
| CN107429158A (en) * | 2015-03-13 | 2017-12-01 | 株式会社理光 | Electrochromic compounds, electrochromic compositions, electric driven color-changing part and electrochromism Light modulating device |
| CN104762684A (en) * | 2015-04-01 | 2015-07-08 | 东华大学 | Curcumin-carried pH-response color-changing antibacterial fiber and preparation method thereof |
| CN105838350A (en) * | 2016-04-16 | 2016-08-10 | 吉林大学 | Electrochromic composite material and prepared electrochromic device |
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