JP7190831B2 - Body hair extension method, extension system, photocurable gel and light device - Google Patents

Description

The present invention relates to beauty technology, and more particularly to body hair extension technology such as eyelashes, eyebrows and hair.

In recent years, instead of false eyelashes, it has been used for various purposes such as giving volume to the length and thickness of a single eyelash, curling, changing the color, and giving an impression different from the feeling of natural eyelashes. , a new beauty technique called so-called eyelash extension has been proposed. In the eyelash extension technique, artificial eyelashes or human eyelashes are used, and since they are attached to the eyelashes of the recipient rather than the eyelid, they are comfortable to wear and less likely to irritate the skin. As such a technique, for example, the specification of Japanese Patent No. 6,096,361 (Patent Document 1) can be cited.

Generally, glues (adhesives) for eyelash extensions contain cyanoacrylate-based adhesives as main components. Cyanoacrylate-based adhesives have been used in various fields due to their ability to bond instantaneously. However, when it reacts with moisture in the air and solidifies, formaldehyde is generated and volatilized, which may irritate the eyes and nose. In addition, the cyanoacrylate-based adhesive may be whitened due to reaction with moisture after curing, resulting in poor appearance.

Also, in recent years, attention has been paid to medical beauty techniques that are required to increase the volume of eyebrows and hair in order to deal with hair loss associated with treatment for cancer or the like.

Patent No. 6,096,361

It is an object of the present invention to solve the above-described problems in body hair extension technology, and to provide a body hair extension method, extension system, photocurable gel, and light device that improve the treatment environment and have a high cosmetic effect. .

In one embodiment,
A hair extension method is provided, comprising attaching a photocurable gel to a hairy body, bringing the hairy body into contact with body hair, and irradiating light to fix the hairy body to the body hair. The light is preferably emitted from a UV light, LED, CCFL or visible light source.

Also, in one embodiment,
means for attaching the photocurable gel to the hairy body;
An extension system is provided, comprising the hair-like body to which the photocurable gel is attached, and means for irradiating light while the body hair is in contact with the hair-like body, and attaching the hair-like body by photocuring. A means for irradiating the light can be provided while holding the hair-like body with one hand and keeping the hair-like body in contact with the body hair with the other hand.

Furthermore, in one embodiment,
A photoinitiator that cures at UVA to visible light wavelengths, a compound polymerizable by the photoinitiator, a reactive diluent that cures by the photoinitiator, and a cosmetic gel component for use in body hair extension. , a photocurable gel is provided.

Furthermore, in one embodiment, the light device is used for body hair extension and includes means for irradiating light having wavelength characteristics for curing the photocurable gel in a hands-free state or with the eyelashes fixed with both hands during the treatment. is provided. Furthermore, light from UV lamps, LEDs, CCFLs can be switched or simultaneously applied as the curing light.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a body hair extension method, an extension system, a photocurable gel, and a light device that improve the treatment environment and have a high cosmetic effect.

1 schematically illustrates one embodiment of an eyelash extension technique; FIG. Schematic diagram of attaching a photocurable gel to the artificial eyelashes 120 of one embodiment. 1 shows an embodiment in which a photocurable gel 140 is cured after a practitioner attaches a hair-like object to a person 100 to be treated in one embodiment. FIG. FIG. 3 shows an embodiment using penlight 200 as light 170, which emits ultraviolet light in the UVA range, to provide limited illumination. FIG. 5 illustrates an exemplary light device embodiment that can be used in one embodiment; FIG. 6 is a diagram showing an embodiment in which a light device of one embodiment is arranged; FIG. 7 is a diagram showing a procedure of an eyelash extension method according to one embodiment; FIG. 8 is a diagram showing procedures of an eyelash extension method according to another embodiment of the present embodiment;

Hereinafter, the present invention will be described using embodiments, but the present invention is not limited to the embodiments described later. FIG. 1 is a diagram schematically showing an eyelash extension technique targeting eyelashes as body hair, as one embodiment of the present disclosure. In the present disclosure, the term "artificial eyelashes" includes hairs made of polyester, nylon or other synthetic polymers and body hairs such as human eyelashes prepared for eyelash extension.

Treatment in eyelash extension technology, regardless of whether it is paid or free, is performed by the practitioner (beautician, person who performs the treatment under the guidance of a beautician, person who attaches artificial eyelashes to their own eyelashes, lecturer etc. A person who performs the treatment for free) sandwiches the artificial eyelashes 120, which are hair-like bodies, between the tweezers 110, and in this embodiment, attaches a photocurable gel as an adhesive (glue).

After attaching the photocurable gel to the artificial eyelashes 120, the practitioner uses a tweezers-like instrument (hereinafter referred to as tweezers) to fix the eyelashes of the person to be treated 100 with one hand and the other hand. The artificial eyelashes 120 are held and brought into contact with each other. In this state, the glue is irradiated with light at room temperature until it hardens, and then the next eyelash extension treatment is performed. This is repeated a predetermined number of times to complete the eyelash extension treatment. In addition, when the subject 100 performs the extension treatment on himself/herself, the subject 100 and the subject 100 are integrated.

Conventionally used cyanoacrylate-based glue releases formaldehyde during curing, which may irritate the eyes and nose. Especially for eyelash extensions, for adult women, for example, several hundred artificial eyelashes or less, for example, several dozen to 200 artificial eyelashes must be attached according to the request of the subject. For periods ranging from minutes to hours, the practitioner or recipient 100 had to endure the stimulation during this time.

In this embodiment, the glue used in the eyelash extension technique procedure is a photocurable gel rather than a cyanoacrylate-based composition. Photo-curable gels have an appropriate viscosity and are cured by irradiation with actinic rays such as UV light or LEDs that emit ultraviolet to visible light. Since there is no irritation to the nose or nose, the treatment environment can be improved.

Examples of photopolymerizable monomers that can be used in the present embodiment include monomers having groups that can be crosslinked or polymerized by light. Examples of monomers having such photopolymerizable groups include (meth) As long as it contains an acryloyl group, it can be used without any particular limitation. Examples of such photopolymerizable monomers include methyl (meth) acrylate, ethyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 2-hydroxyethyl (meth)acrylamide, ethylene glycol di(meth)acrylate, triethylene glycol di(meth)acrylate, tetraethylene glycol di(meth)acrylate, propylene glycol di(meth)acrylate, trimethylolpropane tri(meth) Acrylate, tetramethylolpropane tetra(meth)acrylate, pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, dipentaerythritol penta(meth)acrylate, dipentaerythritol hexa(meth)acrylate, 1,6-hexane Diol di(meth)acrylate, isobornyl acrylate, benzyl(meth)acrylate, N,N'-methylenebisacrylamide and the like can be mentioned.

Additionally, photoreactive diluents can be used in adjusting the properties of the gel. Examples of photoreactive diluents that can be used in this embodiment include ethylene glycol diacrylate, diethylene glycol diacrylate, triethylene glycol diacrylate, tetraethylene glycol diacrylate, polyethylene glycol (#200) diacrylate, polyethylene glycol (# 400) Diacrylate, polyethylene glycol (#600) diacrylate, neopentyl glycol diacrylate, neopentyl glycol hydroxypivalate diacrylate, 1,4-butanediol diacrylate, 1,6-hexanediol diacrylate, 1,9 - nonanediol diacrylate, propylene glycol diacrylate, dipropylene glycol diacrylate, tripropylene glycol diacrylate, polypropylene glycol diacrylate, bisphenol A-EO (ethylene oxide) adduct diacrylate, dimethyloltricyclodecane diacrylate, poly Tetramethylene glycol diacrylate, triethylene glycol dimethacrylate, isobornyl methacrylate, and the like can be used.

Other usable photoreactive diluents include, for example, diethylene glycol di(meth)acrylate, 1,6-hexanediol di(meth)acrylate, neopentyl glycol di(meth)acrylate, tripropylene glycol di(meth)acrylate. ) acrylate, trimethylolpropane tri(meth)acrylate, pentaerythritol tri(meth)acrylate, triethylene glycol di(meth)acrylate, pentaerythritol tetra(meth)acrylate, dipentaerythritol hexa(meth)acrylate, etc. can. The amount of the reactive diluent that can be used in this embodiment can be 20 to 60% by mass in the photocurable gel.

Further, the photopolymerizable component may be not only the above monomers but also oligomers and polymers as long as they have a photopolymerizable functional group, such as polyurethane (meth)acryloyl oligomers and urethane structures. Other polymers etc. can be mentioned. These photopolymerizable components can be contained in the photopolymerizable composition of the present embodiment in an amount of about 20 to 70% by mass.

Examples of solvents that can be used in the present embodiment include ether-based solvents such as ethylene glycol monomethyl ether, ethylene glycol monobutyl ether, propylene glycol monomethyl ether, diethylene glycol monoethyl ether, and dipropylene glycol monomethyl ether, and acetate-based solvents thereof. Preferable examples include ester solvents such as methyl acetate and butyl acetate, and ketone solvents such as methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, hydroxymethylphenylpropanone, and hydroxycyclohexylphenyl ketone. The amount added can be about 1 to 10% by mass.

Examples of photopolymerization initiators that can be used in the present embodiment include UV-reactive 1-hydroxycyclohexylphenyl ketone having sensitivity in the UBA wavelength region; benzophenone, 4,4′-bis(dimethylamino)benzophenone, 3, benzophenone derivatives such as 3-dimethyl-4-methoxy-benzophenone; anthraquinone derivatives such as anthraquinone, 2-methylanthraquinone, 2-ethylanthraquinone, tert-butylanthraquinone; benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin propyl ether, etc. benzoin alkyl ether derivatives; acetophenone derivatives such as acetophenone, 2,2-dimethoxy-2-phenylacetophenone and 2,2-diethoxyacetophenone; thioxanthone derivatives such as 2-chlorothioxanthone, diethylthioxanthone, isopropylthioxanthone and diisopropylthioxanthone; 2,2-dimethoxy-2-phenylacetophenone, 2-hydroxy-2-methylpropiophenone, 4′-isopropyl-2-hydroxy-2-methylpropiophenone, 2-methyl-1-[4-(methylthio) Acetophenone derivatives such as phenyl]-2-morpholino-1-propane; Michler's ketone, 2,4,6-(trihalomethyl)triazine, 2-(o-chlorophenyl)-4,5-diphenylimidazolyl dimer, 9-phenyl Acridine, 1,7-bis(9-acridinyl)heptane, 1,5-bis(9-acridinyl)pentane, 1,3-bis(9-acridinyl)propane, dimethylbenzyl ketal, trimethylbenzoyldiphenylphosphine oxide, tribromo Examples include, but are not limited to, methylphenylsulfone, 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)-butan-1-one, and the like.

Other visible light-reactive photoinitiators include 2,4,6-trimethylbenzoyl-diphenylphosphine oxide, bis(2,6-dimethoxybenzoyl)-2,4,4- It is preferable to use acylphosphone oxide initiators such as trimethyl-pentylphosphine oxide and bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide.

The photopolymerization initiator having visible activity described above can be appropriately used in combination with conventionally known photopolymerization initiators. Some examples are diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, benzyldimethylketal, 4-(2-hydroxyethoxy)phenyl-(2-hydroxy-2-propyl)ketone , 1-hydroxycyclohexylphenyl ketone, 2-methyl-2-morpholino(4-thiomethylphenyl)propan-1-one, 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)butanone, 2-hydroxy acetophenones such as 2-methyl-1-[4-(1-methylvinyl)phenyl]propanone oligomers; benzoins such as benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzoin isobutyl ether; benzophenone, methyl o-benzoylbenzoate, 4-phenylbenzophenone, 4-benzoyl-4'-methyl-diphenylsulfide, 3,3',4,4'-tetra(t-butylperoxycarbonyl)benzophenone, 2,4,6 -trimethylbenzophenone, 4-benzoyl-N,N-dimethyl-N-[2-(1-oxo-2-propenyloxy)ethyl]benzenemethanaminium bromide, (4-benzoylbenzyl)trimethylammonium chloride and other benzophenones 2-isopropylthioxanthone, 4-isopropylthioxanthone, 2,4-diethylthioxanthone, 2,4-dichlorothioxanthone, 1-chloro-4-propoxythioxanthone, 2-(3-dimethylamino-2-hydroxy)-3,4 thioxanthones such as -dimethyl-9H-thioxanthone-9-one mesochloride; These photoinitiators can be used singly or in combination of two or more. These photopolymerization initiators can be added to the photocurable gel of this embodiment in an amount of 0.1 to 15% by mass.

Furthermore, in the present embodiment, it is preferable to add a gelling agent to form the photopolymerizable composition as a gel. When a photopolymerizable composition is composed only of relatively low-molecular-weight compounds such as monomers, oligomers, reactive diluents, and photopolymerization initiators, it lacks thixotropic properties, and the composition flows from the eyelashes into the eyes, causing irritation and inflammation. This is because it is assumed that there is a possibility that In addition, in the case of eyebrow or hair extensions, it is possible to eliminate waste such as sticking to other areas of the skin and peeling off after curing.

Gelling agents that can be used in the present embodiment include guar gum, locust bean gum, queen's seed, carrageenan, galactan, gum arabic, tara gum, tamarind, furcelleran, karaya gum, tororo mallow, cara gum, tragacanth gum, pectin, and pectic acid. and salts such as sodium salts, salts such as alginic acid and sodium salts, mannan; starches such as rice, corn, potato, wheat; xanthan gum, dextran, succinoglucan, curdlan, hyaluronic acid and its salts, xanthan gum, pullulan, gellan gum , chitin, chitosan, agar, cassava extract, chondroitin sulfate, casein, collagen, gelatin, albumin; methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose and salts thereof such as sodium, methylhydroxypropylcellulose, sodium cellulose sulfate, Cellulose and its derivatives such as dialkyldimethylammonium sulfate cellulose, crystalline cellulose, and cellulose powder; starch-based polymers such as soluble starch, carboxymethyl starch, methylhydroxypropyl starch, methyl starch, hydroxypropyltrimonium chloride starch, corn starch octenylsuccinate starch derivatives such as aluminum; alginic acid derivatives or stearic acid derivatives such as sodium alginate, propylene glycol alginate; amphoteric methacrylic acid ester copolymers such as polypropylene glycol, polyoxyethylene/polyoxypropylene copolymer; (methacryloyloxyethyl carboxybetaine/alkyl methacrylate) copolymer, (acrylates/stearyl acrylate/ethylamine methacrylate) copolymer; (Dimethicone/vinyl dimethicone) crosspolymer, (alkyl acrylate/diacetone acrylamide) copolymer, (alkyl acrylate/diacetone acrylamide) copolymer AMP; partially saponified polyvinyl acetate, maleic acid copolymer; vinylpyrrolidone/methacrylic acid Dialkylaminoalkyl copolymer; acrylic resin Lukanolamine; polyester, water-dispersible polyester; polyacrylamide; polyacrylic acid ester copolymer such as polyethyl acrylate, carboxyvinyl polymer, polyacrylic acid and salts such as its sodium salt, acrylic acid and methacrylic acid ester Polymer: acrylic acid/methacrylate alkyl copolymer; cationized cellulose such as polyquaternium-10, diallyldimethylammonium chloride/acrylamide copolymer such as polyquaternium-7, acrylic acid/diallyldimethylammonium chloride such as polyquaternium-22 Copolymer, acrylic acid/diallyldimethylammonium chloride/acrylamide copolymer such as polyquaternium-39, acrylic acid/cationized methacrylic acid ester copolymer, acrylic acid/cationized methacrylic acid amide copolymer, polyquaternium- 47, acrylic acid/methyl acrylate/methacrylamidopropyltrimethylammonium chloride copolymer, chloride methacrylic acid choline ester polymer; cationized oligosaccharides, cationized dextrans, guar hydroxypropyltrimonium chloride and other cationized polysaccharides; Polyethyleneimine; cationic polymer; polymer of 2-methacryloyloxyethylphosphorylcholine such as polyquaternium-51 and copolymer with butyl methacrylate copolymer; acrylic resin emulsion, polyethyl acrylate emulsion, polyacryl alkyl ester emulsion, Polymer emulsions such as polyvinyl acetate resin emulsion, natural rubber latex, synthetic latex; nitrocellulose; polyurethanes and various copolymers; various silicones; various silicone copolymers such as acrylic-silicone graft copolymer; Fluorinated polymer; 12-hydroxystearic acid and its salts; dextrin fatty acid esters such as dextrin palmitate and dextrin myristate; anhydrous silicic acid, fumed silica (ultrafine anhydrous silicic acid), magnesium aluminum silicate, sodium silicate Magnesium, metal soaps, metal salts of dialkyl phosphate, bentonite, hectorite, organically modified clay minerals, sucrose fatty acid esters, and fructo-oligosaccharide fatty acid esters can be mentioned. More specific examples include methylcellulose, carboxymethylcellulose, nitrocellulose, acetylcellulose, sodium polyacrylate, and sodium hyaluronate.

Oil-based gelling agents that can be used in the present embodiment include metal soaps such as aluminum stearate, magnesium stearate, zinc myristate; N-lauroyl-L-glutamic acid, α,γ- Amino acid derivatives such as di-n-butylamine; dextrin fatty acid esters such as dextrin palmitate, dextrin stearate, and dextrin 2-ethylhexanoate palmitate; sucrose such as sucrose palmitate and sucrose stearate Fatty acid ester; fructo-oligosaccharide fatty acid ester such as fructo-oligosaccharide stearate and fructo-oligosaccharide 2-ethylhexanoic acid ester; benzylidene derivative of sorbitol such as monobenzylidene sorbitol and dibenzylidene sorbitol; dimethylbenzyldodecylammonium montmorillonite clay, dimethyldioctadecylammonium montmorillonite Organically modified clay minerals such as clay; non-modified or modified partially cross-linked types such as unmodified partially cross-linked organopolysiloxane, alkyl-modified partially cross-linked organopolysiloxane, and silicone branched alkyl-modified partially cross-linked organopolysiloxane Gel mixtures containing gelling components such as organopolysiloxanes and various oil components such as cyclopentasiloxane, dimethicone, mineral oil, isododecane, trioctanoin, squalane, and the like can be mentioned.

These gelling agents are prepared, for example, by dissolving the gelling agent in a good solvent and gradually adding a poor solvent such as alcohol while stirring to entangle polymer chains and form a cosmetic gel. Although it can be formed, the method of forming the gel is not particularly limited in this embodiment. The formed cosmetic gel is added in consideration of the concentration of the gelling agent and the deposition property of the photopolymerizable component so as to impart appropriate thixotropic properties to the photocurable gel. A curable gel can be produced.

In addition, as optional components added as necessary, additive components that are generally blended in the field of cosmetic decoration can be arbitrarily blended within a range that does not impair the effects of the present invention. Examples of such additive components include photoreaction catalysts, pigments, dyes, fillers, antifoaming agents, buffers, chelating agents, dispersants, preservatives, resin powders (poly(meth)acrylic acid, etc.). ), thickeners, wetting agents, and the like.

In addition, the photopolymerizable composition contains plasticizers such as dibutyl phthalate, acetyl tributyl citrate, and sucrose acetate isobutyrate, metal oxides, dyes, pigments, antioxidants and other additives at 0.1%. It can be added in a range of up to 20% by mass. The content of photopolymerizable monomers or oligomers, photopolymerization initiators, reactive diluents, colorants and other additives that can be used in the present embodiment is not particularly limited, and photocuring to an extent that does not impair the treatment properties. As long as it has the properties and viscosity, it can be used after being adjusted as appropriate.

For example, the gel composition that can be used in the present embodiment specifically includes a photocurable composition containing ethyl methacrylate, triethylene glycol dimethacrylate, isobornyl methacrylate, hydroxycyclohexylphenyl ketone, and benzoylisopropanol. A cosmetic gel containing hydroxyalkyl cellulose can be added to the product to give a photocurable gel.

Other specific gel compositions also include polyurethane acrylate oligomers, HEMA, hydroxycyclohexylphenyl ketone, benzophenone, iron oxide, konjo, manganese violet, iron oxide, chromium oxide, chromium hydroxide, titanium oxide, and the like. Examples of photocurable compositions include photocurable gels formed by adding cosmetic gels containing sodium hyaluronate.

In addition, for example, di-HEMA trimethylhexyl dicarbamate, acrylate oligomer, hydroxycyclohexylphenyl ketone, phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, iron oxide, konjo, manganese violet, titanium oxide, hydroxide A photocurable gel formed by adding a cosmetic gel containing sodium polyacrylate to a photocurable composition containing a coloring agent such as chromium, Gunjo, red No. 230, 227, or 202 can be mentioned.

The viscosity of the photocurable gel of this embodiment can be 1 Pa·s to 100 Pa·s. If it is less than 1 Pa·s, the fluidity is too high and the application properties are poor, and if it exceeds 100 Pa·s, the spreadability on eyelashes is poor. In addition, in this embodiment, the viscosity of the photocurable gel refers to a value measured with a B-type rotational viscometer at room temperature.

2-7, an eyelash extension system will be described as one embodiment of the present disclosure. FIG. 2 shows a schematic diagram of applying a photocurable gel to artificial eyelashes in one embodiment. As shown in FIG. 2(a), the photocurable composition 140 is spread as a layer of suitable thickness on the plate 130 in certain embodiments. In addition to the plate 130, a member for spreading gel such as a ring type or a seal type can be used as needed. The practitioner holds the artificial eyelashes 120 between the tips of the tweezers 110 and attaches the glue made of the photocurable gel 140 to the artificial eyelashes 120 .

Attaching the photocurable gel to the tips of the artificial eyelashes 120 can be performed intuitively according to the technique of the practitioner. It is also possible to control the adhesion amount by dipping the root portion of the artificial eyelashes 120 into the grooves or passing the artificial eyelashes 120 through the grooves.

In addition, in still another embodiment, the artificial eyelashes 120 required for the treatment are prepared by utilizing the fact that unlike the cyanoacrylate glue, the artificial eyelashes 120 required for the treatment can be left for a relatively long time while the actinic rays are blocked. can be done. Specifically, the length of the eyelashes of the subject 100 is measured in advance, and the photocurable gel 140 is applied to the root portions of the plurality of artificial eyelashes 120 so as to roughly correspond to the length. You can prepare multiple copies by applying them with a brush or the like.

Furthermore, in another embodiment, the photocurable gel 140 is applied horizontally on the plate 130 with a width about the length of the eyelashes of the person 100, and the artificial eyelashes 120 to be treated are arranged in this application area. Then, the artificial eyelashes 120 with the appropriate length of the photocurable gel 140 attached to the roots can be prepared. According to this embodiment, it is possible to omit the step of attaching the photocurable gel 140 to the artificial eyelashes 120 each time during the treatment, so that the treatment efficiency can be improved.

FIG. 2B is an enlarged view of the vicinity of the circle 150. As shown in FIG. The artificial eyelashes 120 are sandwiched between the tips of the tweezers 110, and the photocurable glue adheres to the vicinity of the roots of the artificial eyelashes 120, and this portion is adhered to the eyelashes of the person 100 to be treated. At this time, since the photocurable gel of the present embodiment is imparted with appropriate thixotropy by the gelling agent, it flows from the root of the artificial eyelashes 120 along the eyelashes of the subject and into the eyes of the subject. never.

The photocurable gel 140 does not harden, unlike cyanoacrylate glue, unless it is irradiated with actinic rays such as UV light or LED light. be able to.

FIG. 3 shows an embodiment in which the beautician applies the artificial eyelashes 120 to the subject 100 and then cures the photocurable gel 140 . In this embodiment, the artificial eyelashes 120 are attached to the eyelashes by irradiating the eyelashes of the subject 100 with a light device. The light device includes a light source 170 such as a UV (ultraviolet) lamp, UV-LED, visible light LED, or CCFL (Cold Cathode Fluorescent Lamp). In the embodiment shown in FIG. 3, the light source 170 is held by a holder 160, and the holder 160 is held by a support base 180a via a flexible arm 190 and a stand 180. As shown in FIG. In other embodiments, the light device may be wall-mounted, suspended from a ceiling, and various types of light devices may be used depending on the circumstances of the treatment site.

When the light 170 is held as a stand type, for example, the foot switch 180b can be used to continuously apply the artificial eyelashes 120 and light irradiation while fixing the eyelashes with both hands during the treatment.

In addition, the subject 120 may wear an eye patch so that only the eyelashes are exposed so that the irradiation from the light 170 does not extend over a wide area. The irradiation time can typically range from several seconds to several minutes, but the irradiation time can be appropriately adjusted depending on the environmental conditions and the irradiation wavelength. Moreover, when using a penlight type light source, which will be described later, the eyelashes can be irradiated at an angle close to perpendicular to the eyelashes so as to protect the eyes of the subject 100 .

FIG. 4 shows an embodiment using a penlight 200 as light 170, which emits ultraviolet light in the UVA range, to provide limited illumination. 2 and 3 until the artificial eyelashes 120 are attached to the subject 100, but a pen light 200 that emits pen-shaped UVA (for example, 365 nm light) is used for light irradiation. do.

The penlight 200 can be placed near the eyelashes of the subject 100 by means of a flexible arm on a stand installed on the treatment table. After wearing the artificial eyelashes 120, the operator uses a foot switch or the like to irradiate the penlight 200 placed near the eyelashes with hands-free light irradiation, so that the artificial eyelashes 120 can be worn efficiently. can.

As another embodiment, the tweezers 110 and a small penlight are arranged so that the irradiation light of the penlight 200 hits the vicinity of the tip of the tweezers 110, and the irradiation/stop of the penlight 200 is controlled by the operator's hand. The switch of the penlight 200 can also be arranged so that it can be operated only by finger movement without moving the position of the penlight 200 .

In the embodiment shown in FIG. 4, the portion irradiated with light can be limited, and in some cases, by irradiating only the joint portion of the eyelashes, it is possible to efficiently fix the artificial eyelashes 120. Become. Also in the embodiment of FIG. 4, the subject 100 can wear an eye patch that exposes only the eyelashes, in which case the ease of treatment can be further improved.

FIG. 5 illustrates an exemplary light device embodiment that can be used in one embodiment. FIG. 5(a) is a front view of the light device, and as shown in FIG. 5(a), the light device includes a holder 160, an LED 160a, a UV-LED 160b, a UV lamp 160c, and a CCFL 160d. can be done. The LED 160a does not provide the function of curing the photo-curing gel 140, but rather emits daylight color to provide illumination during treatment. In addition, the UV-LED 160b is arranged inside the LED 160a, and emits light in the range of UVA to visible light for hardening toward the eyelashes of the person 100 to be treated. Note that in this embodiment, the UV-LEDs 160b may be arranged in an angular arrangement that concentrates the UV light near the eyelashes of the subject 100. FIG.

Furthermore, in the embodiment shown in FIG. 5(a), the UV lamp 160c and the CCFL 160d are arranged inside the UV-LED 160b, and the holder 160 can irradiate from illumination light to curing light. there is In this embodiment, the light device 160 does not need to include all the light sources from the LEDs 160a to 160d, and the combination is not limited as long as it can generate at least curing light. Furthermore, in one embodiment, a configuration can be used in which curing light is generated simultaneously from UV lamps, UV-LEDs, and CCFLs so that the composition of the photocurable gel 140 does not affect the curing time or curability. Also, if the wavelength of the UV-LED can generate both visible light and UVA, the LED 160a and the UV-LED 160b can be shared to generate illumination light and curing light with one light source.

FIG. 5(b) is a diagram showing a cross-sectional configuration of the light device, and the UV lamps CCFLs 160c and 160d hidden in the lampshade are indicated by dashed lines. The light device includes a donut-shaped lampshade that covers the LEDs 160a that generate illumination light, appropriately diffuses the light from the LEDs 160a, and provides illumination during treatment. Inside the doughnut-shaped lampshade, the UV-LED 160b, the UV lamp 160c, and the CCFL 160d are arranged without being covered by the shade to cure the photocurable gel 140 of the present embodiment.

A lamp changeover switch 160e can also be arranged at an appropriate position of the lampshade, and the LED 160a, UV-LED 160b, UV lamp 160c, and CCFL 160d can be switched and lit according to the photosensitive characteristics of the photocurable gel 140 to be used. can be done. If there is a separate switch for the LED 160a, three lamp changeover switches 160e may be arranged to switch between the UV-LED 160b, the UV lamp 160c, and the CCFL 160d. In addition, the light source for generating each curing light is configured to simultaneously generate illumination light for treatment, thereby enabling smooth treatment.

FIG. 6 is a diagram showing an embodiment when arranging a light device in one embodiment. FIG. 6(a) shows a stand-type embodiment, FIG. 6(b) shows a wall-mounted embodiment, and FIG. 6(c) shows a ceiling-mounted embodiment. A holder 160 having the form shown in FIG. It can be arranged at an appropriate position and angle with respect to the person 100 . In addition, the flexible arm 190 can be rotatably attached to the fixed base 180a and the fixed member 190a, and in cases other than surgery, the holder 160 can be rotated together with the flexible arm 190 and placed in a position that does not get in the way. can be kept

In FIG. 6, it is assumed that the subject 100 is being treated while sitting on a chair, but the subject 100 can naturally be treated while lying down on the treatment table. However, it is possible. By using the light device shown in FIGS. 5 and 6, it is possible to smoothly switch between the illumination light and the curing light during the treatment without any switching operation, thereby improving the efficiency of the treatment.

FIG. 7 is a diagram showing the procedure of the eyelash extension method of this embodiment. The method starts at step S100, and after the subject 100 is prepared, an appropriate amount of photocurable gel is applied near the roots of the artificial eyelashes 120 at step S101.

Then, in step S102, the artificial eyelashes 120 are attached to the eyelashes of the subject, and in step S103, light is applied to cure the photocurable gel and fix the artificial eyelashes. Further, in step S104, eyelash extensions are repeatedly applied to a predetermined number of eyelashes, and after the predetermined number of eyelashes are attached, the process ends in step S105.

In the case of an adult woman, this repetition is completed in about several tens of minutes to two hours from the start of the treatment to the end of the treatment according to the request of the subject such as eyelash gloss. In addition, when removing the artificial eyelashes 120, a commercially available liquid type, gel type, or cream type remover containing acetone, ethanol, or other appropriate gelling agent is used, and the artificial eyelashes are removed from the eyelashes of the subject 100. 120 can be removed.

In another embodiment, taking advantage of the photocurable and thixotropic properties of the curable gel, a tweezer-mounted UV-LED is used to initiate actinic radiation, i.e., photopolymerization, after the artificial eyelashes are attached to the eyelashes. Temporary adhesion can be achieved by irradiating light in a wavelength range that can be used for a short time of about 1 second to several seconds. Temporarily attach the previously applied artificial eyelashes, move on to the next artificial eyelash application, temporarily attach them again, apply the next artificial eyelash, and after completing the prescribed number of eyelash extension treatments, complete curing. Therefore, a relatively long actinic ray irradiation can be performed for several minutes. In the case of this embodiment, the application property is almost the same as when using a conventional cyanoacrylate glue, and unlike cyanoacrylate, it does not harden instantly, so it takes time to wear the artificial eyelashes 120. Efficient treatment can be performed while having a more cosmetically preferable arrangement.

FIG. 8 is a diagram showing procedures of an eyelash extension method according to another embodiment of the present embodiment. The method starts at step S200, after the subject 100 is prepared, a suitable amount of photocurable gel is applied near the roots of the artificial eyelashes 120 at step S201.

Then, in step S202, the artificial eyelashes 120 are attached to the eyelashes of the subject, and in step S203, light is applied for a short period of time to temporarily harden the photocurable gel and fix the artificial eyelashes. Further, in step S204, eyelash extensions are repeatedly applied, and after a predetermined number of eyelashes are attached, the artificial eyelashes are fixed by final curing, and the process ends in step S205.

In addition, the photocurable gel can be given various colors as long as the photocurability is not hindered, and can meet the needs of the subject. In addition, according to the present embodiment, unlike cyanoacrylate glue, no aldehyde compound is generated, so it is possible to provide a more satisfactory eyelash extension method in terms of improving the treatment environment and preventing whitening. can.

It is also possible to use a photopolymerization initiator having sensitivity in the visible light region to form a visible light polymerized gel and use visible light for curing. Moreover, it goes without saying that this embodiment can be used to attach hair-like bodies to body hair such as eyebrows and hair instead of eyelashes.

Hereinafter, the present embodiment will be described with specific examples, but the examples are provided for understanding of the present embodiment and do not limit the present embodiment.

Example 1
A photocurable composition containing ethyl methacrylate, triethylene glycol dimethacrylate, isobornyl methacrylate, hydroxycyclohexylphenyl ketone, and benzoylisopropanol is added with a cosmetic gel, and the artificial eyelashes 120 are fixed with UV-LED light. was adjusted to about 1 minute and the viscosity to about 20 Pa·s to obtain a photocurable gel.

This gel composition was spread on the plate 130 and adhered near the base of the artificial eyelashes 120 sandwiched between the tweezers 110 . After that, the artificial eyelashes 120 sandwiched between the tweezers 110 were brought into contact with the eyelashes of the subject and irradiated with UV-LED light for about 1 minute. In addition, when the eyelashes were observed with a hand mirror after wearing, no whitening or the like was observed, and a good treatment environment could be provided without irritation during the treatment. Moreover, during the treatment period, the photocurable gel did not flow into the eyes of the subject, and the treatment was performed well.

Example 2
A cosmetic gel is added to a photocurable composition containing polyurethane acrylate oligomer, HEMA, hydroxycyclohexylphenyl ketone, benzophenone, iron oxide, konjo, manganese violet, gunjo, chromium oxide, chromium hydroxide, and titanium oxide, and UV- The fixation time of the artificial eyelashes 120 with LED light was adjusted to about 1 minute, and the viscosity was adjusted to about 20 Pa·s to obtain a photocurable gel.

When this gel composition was applied to eyelashes in the same manner as in Example 1, good adhesion was achieved. In addition, when the eyelashes were observed with a hand mirror after wearing, no whitening or the like was observed, and a good treatment environment could be provided without irritation during the treatment. Moreover, during the treatment period, the photocurable gel did not flow into the eyes of the subject, and the treatment was performed well.

Example 3
Di-HEMA trimethylhexyl dicarbamate, acrylate oligomer, hydroxycyclohexyl phenyl ketone, phenylbis(2,4,6-trimethylbenzoyl) phosphine oxide, iron oxide, konjo, manganese violet, titanium oxide, chromium hydroxide, gunjo, red 230 Nos. 227 and 202, a cosmetic gel is added to the photocurable composition, and the time for fixing the artificial eyelashes 120 with a UV lamp is adjusted to about 2 minutes, and the viscosity is adjusted to about 30 Pa s. A curable gel was obtained.

This gel composition was brought into contact with the eyelashes in the same manner as in Example 1, and was temporarily adhered by irradiating light. After a predetermined number of temporary adhesions were completed, light irradiation was performed for several minutes to permanently adhere the lashes. did it. In addition, when the eyelashes were observed with a hand mirror after wearing, no whitening or the like was observed, and a good treatment environment could be provided without irritation during the treatment. Moreover, during the treatment period, the photocurable gel did not flow into the eyes of the subject, and the treatment was performed well in a short period of time.

As described above, according to this exemplary embodiment, it is possible to provide a body hair extension method and extension system that improve the treatment environment and have a high cosmetic effect.

Although the present invention has been described using exemplary embodiments, the present invention is not limited to the embodiments, and other embodiments, additions, modifications, deletions, etc., are within the conceivable range. , and any aspect is included in the scope of the present invention as long as the action and effect of the present invention are exhibited.

DESCRIPTION OF SYMBOLS 100... Subject, 110... Tweezer, 120... Artificial eyelashes, 130... Plate, 140... Photocurable gel (glue), 160... Holder, 170... Light source , stand...180, flexible arm...190

Claims (5)

A photoinitiator that cures at UVA to visible light wavelengths, a compound polymerizable by the photoinitiator, a reactive diluent that cures by the photoinitiator, and a cosmetic gel component for use in body hair extension. 3. A method of extending body hair, comprising attaching a photocurable gel to a hairy body, bringing the hairy body into contact with body hair, and fixing the hairy body to the body hair by irradiating light. The eyelash extension method according to claim 1, wherein said light is emitted from a UV light, LED, CCFL or visible light source. A photoinitiator that cures at UVA to visible light wavelengths, a compound polymerizable by the photoinitiator, a reactive diluent that cures by the photoinitiator, and a cosmetic gel component for use in body hair extension. , a means for attaching the photocurable gel to the hairy body ;
An extension system comprising: the hair-like body to which photocurable gel is attached; and means for irradiating light while the body hair is in contact with the hair-like body, wherein the hair-like body is attached by photocuring. Means for fixing the body hair of the subject with one hand, means for grasping the hairy body with the other hand and contacting the hairy body, and with the hairy body in contact with the body hair, the light 4. An eyelash extension system according to claim 3, comprising means for irradiating a. A photoinitiator that cures at UVA to visible light wavelengths, a compound polymerizable by the photoinitiator, a reactive diluent that cures by the photoinitiator, and a cosmetic gel component for use in body hair extension. a photocurable gel for use in a hair extension method, wherein a photocurable gel is attached to a hairy body, the hairy body is brought into contact with the body hair, and light is irradiated to fix the hairy body to the body hair; A light device comprising means for irradiating light having wavelength characteristics for curing the gel .

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