JP2018046900A - Drawing tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drawing tool capable of drawing a three-dimensional and minute character or pattern on a surface of a nail or an accessory.SOLUTION: A drawing tool of the invention comprises: a storage part for storing a drawing composition; and a nozzle part which is connected to the storage part and has an opening part for discharging the drawing composition supplied from the storage part to outside. The drawing composition comprises photocuring property and high thixotropic property. The drawing composition has 1.3 or more and 3.5 or less of a thixotropic ratio, preferably, and contains a photocuring resin and thickener. A diameter of the opening part is preferably 0.5 mm or more and 1.2 mm or less.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a drawing tool capable of drawing three-dimensional and precise pictures and characters on the surfaces of nails and accessories.

  In recent years, gel nails have become popular in the nail art field, replacing manicure. This is because gel nails are superior to nail polish in terms of holding (durability), gloss (good color development), strength (increasing nail strength), and the like.

  Gel nail is a composition for gel nails containing a photo-curable resin. The nail is painted on the nail, and UV light (fluorescent light / LED) is applied to the nail to cure the photo-curable resin. To settle. Various developments have been made on gel nail compositions for the purpose of enhancing gel nail peelability, surface strength and antibacterial properties (see Patent Documents 1 to 6).

JP 2013-177362 A JP-A-2015-873 Japanese Patent Laying-Open No. 2015-209375 JP 2016-27011 A Japanese Patent No. 5043241 Japanese Patent No. 5936018

  However, conventional gel nail compositions are viscous fluids and have the property of trying to level themselves by gravity. Therefore, it is difficult to draw three-dimensional and precise pictures and characters with gel nails.

  This invention makes it a subject to provide the drawing tool which can draw a three-dimensional and precise picture and character on the surface of a nail | claw or an accessory.

  As a result of intensive studies, the inventors have found that a drawing tool containing a photocurable and highly thixotropic composition contained in a specific container is three-dimensional and dense on the surfaces of nails and accessories. The present invention was completed by discovering that pictures and characters can be drawn.

  That is, the drawing tool of the present invention is a storage unit that stores the drawing composition; a nozzle unit that is connected to the storage unit and has an opening that discharges the drawing composition supplied from the storage unit to the outside; The drawing composition is provided with photocurability and high thixotropy. In addition, as a composition for drawing, that whose thixo ratio is 1.3 or more and 3.5 or less is preferable, and a thing containing photocurable resin and a thickener can be illustrated. The diameter of the opening is preferably 0.5 mm or more and 1.2 mm or less.

  If the drawing tool of this invention is used, a three-dimensional and precise picture and character can be drawn on the surface of a nail or an accessory. This expands the range of expression for nail artists and can contribute to the development of the nail industry such as a nail salon.

FIG. 1 is a diagram showing an embodiment of a drawing tool. FIG. 2 is a diagram showing another embodiment of the drawing tool.

  The drawing tool of this invention accommodates the composition for drawing in the accommodating part of an accommodation container. Therefore, the container and the composition for drawing will be described in detail below based on the drawings. The following embodiments do not limit the scope of the claims of the present invention in any way.

1. Storage Container FIG. 1 is a view showing an embodiment of a storage container. FIG. 2 is a diagram showing another embodiment of the drawing tool. FIGS. 1A and 2A show a state when the drawing tool is not used. Moreover, FIG.1 (b) and FIG.2 (b) have shown the state at the time of use of a drawing tool. Furthermore, FIG.1 (c) and FIG.2 (c) have shown the state at the time of decomposition | disassembly which decomposed | disassembled the drawing tool.

  As shown in FIGS. 1 and 2, the storage containers 1 and 2 include storage portions 11 and 21 for storing a drawing composition, nozzle portions 12 and 22 connected to the storage portions 11 and 21, and a nozzle portion. The cap parts 13 and 23 are provided to protect the tips of the 12 and 22.

(1) Accommodating portion The accommodating portions 11 and 21 are flexible enough to be deformed when pressed with a finger, and are made of light-shielding plastic. Therefore, the drawing composition in the storage containers 1 and 2 is not unintentionally cured by sunlight or the like, and the drawing composition is directed toward the nozzle parts 12 and 22 by pressing the cylindrical side with a finger. Move towards.

(2) Nozzle portion The nozzle portions 12 and 22 are made of light-shielding plastic, one end of which can be screwed to the accommodating portions 11 and 21, and the other end is narrowed toward the tip, An opening for discharging the drawing composition that has moved from the housing parts 11 and 21 is provided. The diameter of the opening is preferably 0.5 mm or more and 1.2 mm or less. This is because if the diameter of the opening is within the above range, delicate depiction can be performed.

(3) Cap part The cap parts 13 and 23 are comprised from the light-shielding plastic. Therefore, it can prevent that a drawing composition hardens | cures unintentionally in the nozzle parts 12 and 22 by the foreign material approaching from the opening part of the nozzle parts 12 and 22, the sunlight which entered from the opening part, etc.

(4) Other Embodiments In addition to this, the storage container constituting the drawing tool of the present invention may be, for example, a storage part and a nozzle part that are integrally molded, such as a single-use eye drop container. A single-use container in which the tip of the nozzle portion can be easily separated by hand may be used.

2. Drawing composition The drawing composition is a resin composition having photocurability and high thixotropy, and more specifically, a resin composition containing a photocurable resin and a thickener can be exemplified. . In the present invention, photo-curing means that the human body used in gel nails is cured by ultraviolet light or visible light when irradiated with UV light (fluorescent lamp / LED) or sunlight having a relatively harmless wavelength. It is. In the present specification, high thixotropy means that the viscosity of the resin composition before curing is measured, and the thixo ratio calculated from the measured viscosity falls within a specific range.

  More specifically, the viscosity of the composition for drawing before curing measured by the method of Examples described later is 7,000 to 2,200,000 when measured at 25 ° C. and 2 rpm, and may be measured at 25 ° C. and 4 rpm. It means that it is preferably 5,000 to 700,000, and the thixo ratio (viscosity at 2 rpm / 4 viscosity at 2 rpm) is 1.3 or more and 3.5 or less. If the viscosity at 25 ° C. and 4 rpm is 5,000 or less, the drawn line droops, and if it is 700,000 or more, the drawn line is blurred.

(1) Photo-curing resin As photo-curing resin constituting the composition for drawing, when UV light or sunlight is irradiated, it is cured by photopolymerization (photopolymerization) reaction with ultraviolet light or visible light, and cosmetics. Any known resin that can be used in the field of touching the human body can be used without limitation. Such a photocurable resin generally contains 1) a photocurable component (such as a photopolymerizable monomer), 2) a photopolymerization initiator, and 3) a solvent. Therefore, each component will be described in detail below.

1) Photocurable component Specific examples of the photocurable component include a photopolymerizable monomer and an oligomer or polymer compatible with the photopolymerizable monomer. The photopolymerizable monomer is not particularly limited as long as it is a known monomer that has a functional group that can be crosslinked or polymerized by light, such as a (meth) acryloyl group, and can be used in the field of touching the human body such as cosmetics. be able to.

  Specific examples of the photopolymerizable monomer containing a (meth) acryloyl group include methyl (meth) acrylate, ethyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, and 2-hydroxy Propyl (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, tri Methylolpropane tri (meth) acrylate, tetramethylolpropane tetra (meth) acrylate, pentaerythritol tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, dipentaerythritol Ritolol penta (meth) acrylate, dipentaerythritol hexa (meth) acrylate, 1,6-hexanediol di (meth) acrylate, isobornyl acrylate, benzyl (meth) acrylate, cardoepoxy di (meth) acrylate, N, N'-methylenebisacrylamide is mentioned.

  In addition, any oligomer that is compatible with the photopolymerizable monomer can be used without particular limitation as long as it is a known one that is sold as a raw material for cosmetics and the like. Specific examples include (meth) urethane acrylate oligomers, (meth) polyester oligomers, (meth) epoxy acrylate oligomers, and polymers having a urethane structure. Polymers compatible with the photopolymerizable monomer are resins compatible with the above monomers and oligomers. Specifically, (meth) acrylate (co) polymer, polystyrene, polyvinyl acetate, polyvinylpyrrolidone, poly Examples include diallyl phthalate, polybutadiene, polyisoprene, styrene butadiene rubber, butyl rubber, petroleum resin, rosin, rosin ester resin, and phenol resin.

2) Photopolymerization initiator The photopolymerization initiator is a known photopolymerization initiator that accelerates the photocuring reaction of the photocurable component by ultraviolet rays or visible light, and can be used in the field of touching the human body such as cosmetics. Any initiator can be used without particular limitation.

  Specific examples of photopolymerization initiators include 1-hydroxycyclohexyl phenyl ketone, benzophenone, 4,4′-bis (dimethylamino) benzophenone, benzophenone derivatives such as 3,3-dimethyl-4-methoxy-benzophenone, anthraquinone, Anthraquinone derivatives such as 2-methylanthraquinone, 2-ethylanthraquinone, tert-butylanthraquinone, benzoin alkyl ether derivatives such as benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin propyl ether, acetophenone, 2,2-dimethoxy-2-phenyl Acetophenone derivatives such as acetophenone and 2,2-diethoxyacetophenone, and thioxanthone derivatives such as 2-chlorothioxanthone, diethylthioxanthone, isopropylthioxanthone and diisopropylthioxanthone , Acetophenone, 2,2-dimethoxy-2-phenylacetophenone, 2-hydroxy-2-methylpropiophenone, 4'-isopropyl-2-hydroxy-2-methylpropiophenone, 2-methyl-1- [4- Acetophenone derivatives such as (methylthio) phenyl] -2-morpholino-1-propane, Michler's ketone, 2,4,6- (trihalomethyl) triazine, 2- (o-chlorophenyl) -4,5-diphenylimidazolyl dimer, 9-phenylacridine, 1,7-bis (9-acridinyl) heptane, 1,5-bis (9-acridinyl) pentane, 1,3-bis (9-acridinyl) pronopan, dimethylbenzyl ketal, trimethylbenzoyldiphenylphosphine oxide , Tribromomethylphenylsulfone, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) -butan-1-one, and the like.

3) Solvent The solvent can be used without particular limitation as long as it can dissolve a photocurable component, a photopolymerization initiator, and the like and can be used in the field of touching the human body such as cosmetics.

  Specific examples of the solvent include ether solvents such as ethylene glycol monomethyl ether, ethylene glycol monobutyl ether, propylene glycol monomethyl ether, diethylene glycol monoethyl ether, dipropylene glycol monomethyl ether, and their acetate solvents, methyl acetate, butyl acetate. And ester solvents such as methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, hydroxymethylphenylpropanone, and ketone solvents such as hydroxycyclohexyl phenyl ketone.

  In addition, a photocurable resin may be used independently and may mix and use several different types of photocurable resins. In addition, the content of the photocurable resin in the drawing composition can be freely selected depending on the type of the photocurable resin and thickener used so that the viscosity and thixo ratio of the drawing composition fall within the above ranges. Can be changed to

(2) Thickener As a thickener which comprises a composition for drawing, if it is a well-known thickener usable in the field | area which touches human bodies, such as cosmetics, it can be used without limitation. Examples of such thickeners include, but are not limited to, inorganic compounds, waxes and hydroxystearic acid.

  Specific examples of the inorganic compound include white carbon, silicic anhydride, bentonite, and montmorillonite.

  Specifically, amide wax, paraffin wax, ceresin wax, microcrystalline wax, hydrogenated microcrystalline wax, Fischer-Tropsch wax, polyethylene wax, ethylene / propylene copolymer, candelilla wax, carnauba wax, beeswax, Examples include mole, gallow, dirow, montan wax, stearyl-modified methylpolysiloxane, behenyl-modified methylpolysiloxane, and the like.

  In addition, a thickener may be used independently and may mix and use a several different kind of thickener. Further, the content of the thickener in the drawing composition can be freely selected according to the type of photocurable resin and thickener used so that the viscosity and thixo ratio of the drawing composition fall within the above ranges. Can be changed.

(3) Other components In addition to the above components, the drawing composition is a known pigment, filler, antifoaming agent, buffer, chelating agent, dispersion that can be used in the field of touching the human body such as cosmetics. Additives, preservatives, wetting agents and the like may be included as long as the effects of the invention are not impaired.

  For example, specific examples of the pigment include titanium dioxide, metal oxide pigments such as petals, metal complex pigments such as ultramarine and bitumen, carbon black, lake pigments of other inorganic pigments and dyes, azo pigments, Organic pigments such as phthalocyanine pigments and condensed polycyclic pigments, pearl pigments such as coated mica, aluminum vapor-deposited polyethylene terephthalate film strips, other lame materials, various shell powders, bronze powders, and other powders . Examples of the filler include calcium carbonate, aluminum hydroxide, barium sulfate, talc, and kaolin.

  Hereinafter, the present invention will be described in more detail based on examples. The claims of the present invention are not limited in any way by the following examples.

1. Preparation of composition for drawing The composition for drawing (Examples 1-3) used by this invention was prepared. For comparison, a conventional drawing composition was also prepared.

Example 1
After mixing 60 parts by weight of Aronix M-1200 (Toa Gosei: urethane acrylate), 40 parts by weight of pentaerythritol triacrylate, 20 parts of 1-6 hexanediol diacrylate, 5 parts by weight of 1-hydroxy-cyclohexyl phenyl ketone, 12 parts by weight of Mizukasil P-707 (Mizusawa Chemical: White Carbon) was added and mixed and dispersed with a high-speed stirrer for 20 minutes to obtain a photocurable drawing composition.

Example 2
After mixing 50 parts by weight of Aronix M-1200 (Toagosei: urethane acrylate), 30 parts by weight of pentaerythritol triacrylate, 20 parts of 1-6 hexanediol diacrylate, 5 parts by weight of 1-hydroxy-cyclohexyl phenyl ketone, Aerosil 200 (manufactured by EVONIK) (5 parts by weight) was added and mixed and dispersed with a high-speed stirrer for 20 minutes to obtain a photocurable drawing composition.

Example 3
EBECRYL4666 (Daicel Ornex Urethane acrylate resin) 60 parts by weight, trimethylolpropane triacrylate 20 parts by weight, isobornyl acrylate 10 parts by weight, bisphenol A diacrylate 10 parts by weight, 2-hydroxy 2-methyl 1-phenyl 1- After mixing 5 parts by weight of propanone, 5 parts by weight of ASA-T-1800 (Amide Wax made by Ito Oil Co., Ltd.) was added, and the mixture was mixed and dispersed with a high-speed stirrer for 20 minutes to obtain a photocurable drawing composition.

Comparative Example 1
After mixing 60 parts by weight of Aronix M-1200 (Toa Gosei: urethane acrylate), 40 parts by weight of pentaerythritol triacrylate, 20 parts of 1-6 hexanediol diacrylate, 5 parts by weight of 1-hydroxy-cyclohexyl phenyl ketone, 3 parts by weight of Mizukasil P-707 (Mizusawa Chemical: White Carbon) was added and mixed and dispersed with a high-speed stirrer for 20 minutes to obtain a photocurable drawing composition.

Comparative Example 2
After mixing 60 parts by weight of Aronix M-1200 (Toa Gosei: urethane acrylate), 40 parts by weight of pentaerythritol triacrylate, 20 parts of 1-6 hexanediol diacrylate, 5 parts by weight of 1-hydroxy-cyclohexyl phenyl ketone, 30 parts by weight of Mizukasil P-707 (Mizusawa Chemical: White Carbon) was added and mixed and dispersed with a high-speed stirrer for 20 minutes to obtain a photocurable drawing composition.

2. Evaluation of thixo ratio and drawability The thixo ratio and drawability of the film-forming resin compositions of Examples 1 to 3 and Comparative Examples 1 and 2 were examined. Specifically, it investigated as follows.

(1) Evaluation of thixo ratio In this specification, the thixo ratio represents a numerical value of the drawing composition before photocuring, and was calculated based on the viscosity of the drawing composition before photocuring. Specifically, the viscosity of the composition for drawing was measured under a viscometer (Brookfield PV-2T), measurement temperature 25 ° C., measurement speeds of 2 rpm and 4 rpm, and the ratio value (viscosity at 2 rpm). (Viscosity at / 4 rpm) was defined as the thixo ratio. The values of viscosity and thixo ratio are shown in Table 1.

(2) Evaluation of drawability The film-forming resin compositions of Examples 1 to 3 and Comparative Examples 1 to 2 are accommodated in a plastic container (diameter of the opening of the nozzle portion: 1.0 mm) as shown in FIG. I got the ingredients. I drew a curve about 5mm in length on the nail of a human thumb with a drawing tool. UV light (wavelength 375 nm) was applied to the nails with LED light (power 8 W) for 2 to 4 minutes to make the applied film-forming resin composition photocurable. From the spread of the drawn straight line, the drawability of the drawn object was visually evaluated according to the following criteria. Note that “◯” is preferable for three-dimensional drawing. Table 1 shows the evaluation results of the drawability.

Evaluation Criteria ○: Three-dimensional drawing is possible, and the shape of the drawing line does not change even after photocuring.
(Triangle | delta): Although it can draw in three dimensions, after photocuring, the shape of the drawing line has changed.
X: It is difficult to draw.

  From Table 1, it turned out that the film-forming resin composition of Examples 1-3 has the outstanding drawing property. On the other hand, although the film-forming resin composition of Comparative Example 1 was able to draw, the liquid dripped immediately and the drawing line became thick, resulting in unclear drawing. Moreover, the film-forming resin composition of Comparative Example 2 was difficult to draw, and was faint in the middle of drawing the line.

1, 2 Container 11, 21 Container 12, 22 Nozzle 13, 23 Cap

Claims (4)

A housing for housing the drawing composition;
A nozzle part having an opening that is connected to the storage part and discharges the drawing composition supplied from the storage part to the outside;
A drawing tool comprising:
A drawing tool in which the drawing composition has photocurability and high thixotropy.   The thixo ratio, which is the ratio of the viscosity of the drawing composition before photocuring measured at a measurement temperature of 25 ° C. and a rotational speed of 2 rpm and 4 rpm using a Brookfield viscometer (viscosity at 2 rpm / 4 viscosity at 1.3 rpm) is 1.3. The drawing tool according to claim 1, which is at least 3.5.   The drawing tool according to claim 1, wherein the drawing composition contains a photocurable resin and a thickener.   The drawing tool according to any one of claims 1 to 3, wherein the diameter of the opening is 0.5 mm or more and 1.2 mm or less.

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