JP6035809B2 - Sculpture material - Google Patents

Description

  The present invention relates to a sculpture material that can be formed on the surface of a nail so that a capacitive touch panel can be operated by the nail tip.

Manicure is widely used among women as a cosmetic product for nail decoration. The manicure is intended to give the nail surface a color and gloss and to decorate it gorgeously, and can impart a cosmetic effect to the nail surface.
At present, in addition to the cosmetic effect on the nail surface, which is a feature of nail polish, as a method of adjusting the length of the nail freely to make a nail with a thicker and beautiful shape, an artificial nail is glued to the nail, etc. There is known a method of mounting using a garment. Since artificial nails are mounted on the nails and decorated from above, the burden on the nails can be reduced compared to the case where the nail polish is applied directly to the nails. Furthermore, the working time can be shortened. The artificial nail used in this case is usually called a nail tip.
However, at present, an artificial nail that is more closely attached to the nail and has a natural appearance is required, and sculpture is known as the method (see Patent Documents 1 to 3).
The sculpture is a kind of artificial nail, which is formed by applying acrylic resin or the like directly on the surface of the nail, forming it into a desired shape, and then curing it. Unlike conventional artificial nails, the sculpture can be attached to the nail without using an adhesive, and can form artificial nails that match the shape of the individual nail directly on the surface of the nail. Therefore, the adhesiveness with a nail | claw is high and can obtain a more natural external appearance. Such sculptures are used by many women because, in addition to the effects described above, once they are worn, they can be maintained for about three weeks.

  By the way, in recent years, touch panels that can be operated by touching a screen are used for cellular phones and smart phones, ATMs of banks and financial institutions, vending machines (vending machine), etc. A touch panel operates by detecting voltage, ultrasonic waves, light, and the like, and its principles vary. Specifically, there are touch panels such as a resistance film method, a capacitance method, an ultrasonic method, an optical method, and an electromagnetic induction method. Of these, the capacitive touch panel operates by recognizing the position by detecting the capacitance change of the charge on the surface of the touch panel caused by touching the screen.

The capacitive touch panel has two types of detection methods, a surface type and a projection type, each having a different structure.
Hereinafter, description will be given with reference to the drawings.

FIG. 1 is a schematic perspective view showing an example of a general projected capacitive touch panel.
The projected capacitive touch panel 1 has a transparent substrate 2 and a transparent electrode layer 3 disposed on the transparent substrate 2, and a protective cover 4 on the transparent electrode layer 3. Yes. The transparent electrode layer 3 constituting the projected capacitive touch panel 1 is composed of a first transparent electrode layer 31 and a second transparent electrode layer 32.

FIG. 2 is a schematic plan view showing an example of a transparent electrode layer constituting a general projected capacitive touch panel. The transparent electrode layer 3 comprises the first transparent electrode layer 31 and the second transparent electrode layer 32 as described above, and the first transparent electrode layer 31 detects coordinates in the X direction. A plurality of transparent electrodes 31X are formed in the X direction, and a plurality of transparent electrodes 32Y for detecting coordinates in the Y direction are separated in the Y direction on the second transparent electrode layer 32. Formed. The reason why the plurality of transparent electrodes are formed separately is to improve the accuracy of position detection. In addition, although each transparent electrode shown in FIG. 2 is a rhombus electrode, there are other fields such as a tabular electrode.
The transparent electrode 31X and the transparent electrode 32Y formed in the X direction or the Y direction are connected to the X coordinate detection conductive portion 5X and the Y coordinate detection conductive portion 5Y, respectively, and the X coordinate detection conductive portion 5X. Although not shown, the Y coordinate detection conductive portion 5Y is connected to a switching circuit, a detection circuit, and the like. The X coordinate detection conductive portion 5X and the Y coordinate detection conductive portion 5Y function as electrodes for applying a predetermined voltage to the transparent electrode 31X and the transparent electrode 32Y, respectively. A voltage can be selectively applied to either 31X or the transparent electrode 32Y.

FIG. 3 is a schematic diagram illustrating an example of the operating principle of a projected capacitive touch panel.
As described above, an electric field is formed on the surface of the transparent electrode layer 3 to which a voltage is applied. In this state, when the finger 10 approaches the projected capacitive touch panel, a gap between the finger 100 and the transparent electrode is formed. The capacitance increases. By detecting which position of the X-coordinate conductive portion and the Y-coordinate conductive portion has increased capacitance, the coordinates of the contact position can be obtained.

  The projected capacitive touch panel can detect multiple points from its detection method. Therefore, it is currently used in a wide range of fields.

  Next, FIG. 4 is a schematic perspective view showing an example of a general surface-type capacitive touch panel. The surface-type capacitive touch panel 1 has a transparent substrate 2, a transparent conductive film 6 disposed on the transparent substrate 2, and a protective cover 4 disposed on the transparent conductive film 6.

  FIG. 5 is a schematic cross-sectional view showing an example of a transparent conductive film constituting a general surface-type capacitive touch panel. The transparent conductive film 6 has electrodes 61 at four corners, and an electric field is formed on the surface of the transparent conductive film 6 by these electrodes.

FIG. 6 is a schematic diagram illustrating an example of the operating principle of a surface capacitive touch panel.
As shown in FIG. 6, when the finger 100 contacts the surface capacitive touch panel 1, a weak current flows through the finger 100 from the electrodes at the four corners. At this time, since the amount of current increases as the electrode is closer to the position touched by the finger 100, the position touched by the finger 100 can be detected by calculating the ratio of the amount of current flowing from the four corners.
In addition, about the code | symbol which is not demonstrated, since it can be the same as that of FIG. 4, it abbreviate | omits.

  In this way, the capacitive touch panel operates by changing the capacitance, etc., unlike the resistive touch panel that operates by pushing the screen, so it operates lightly just by approaching or touching the screen. be able to. As a result, it is possible to perform an operation of tracing the screen and turning the page, and an operation of inputting a key by hitting the screen. At present, a capacitive touch panel is employed in a mobile phone, a smartphone, a portable information terminal, and the like. In addition, the capacitance type touch panel has a higher transmittance than the resistive film type, so the screen is clear. Furthermore, since the capacitive touch panel can be provided with a protective cover such as glass on the surface, it is resistant to scratches and has excellent durability and environmental resistance.

  However, while the number of women applying sculptures for the purpose of decorating and reinforcing nails has increased rapidly, there has been a problem that it becomes difficult to approach or touch the touch panel with a finger and the capacitive touch panel cannot be operated. The capacitive touch panel does not react to anything other than the finger. The capacitive touch panel assumes that the human body is the ground, and when the finger approaches the capacitive touch panel, the transparent electrode or This is because the capacitance on the surface of the transparent conductive film changes, and the position where the finger approaches or comes in contact with the change in the capacitance is detected to operate. In other words, a capacitive touch panel can be operated with a finger or an electrostatic conductivity equivalent to that of a finger.

  As a method for solving such a problem, there is a method of operating using a tool such as a dedicated stylus pen instead of a finger (see Patent Document 4), but the stylus pen is used together with a mobile phone, a smartphone, a portable information terminal, and the like. There is a problem that it is necessary to carry around and it is difficult to operate with one hand. Therefore, a further solution is demanded.

  As described above, even if it is difficult to operate a capacitive touch panel that is formed on the surface of a nail and that is mounted on a mobile phone, smartphone, portable information terminal, etc. with a finger, Development of a method that can easily operate the touch panel without using a special tool is required.

  Furthermore, at present, there are many miniaturized capacitive touch panels, and the input buttons and the like are often small accordingly. Therefore, there are problems such as erroneous input and erroneous operation when inputting with a finger, and development of a method that can be accurately operated with a toe is required.

Japanese Patent No. 4565419 JP-A-55-108309 JP 2009-056077 A JP 2010-3279 A

  The present invention has been made in view of the above problems, and a main object of the present invention is to provide a sculpture material capable of operating a capacitive touch panel with a nail tip when formed on the nail surface. .

  The present invention provides a sculpture material characterized in that the artificial nail formed on the surface of the nail has a conductive material in an amount capable of imparting the nail tip with conductivity sufficient to operate a capacitive touch panel. To do.

According to the present invention, when the sculpture material has a conductive material, the toe of an artificial nail (hereinafter, simply referred to as a conductive artificial nail) formed using the sculpture material is electrostatic. When approaching or touching a capacitive touch panel, the capacitance increases between the capacitive touch panel and the conductive artificial nail, similar to when a finger approaches or touches. That is, in the capacitive touch panel, the capacitance of the electrode corresponding to the area where the toe of the conductive artificial nail approaches or comes into contact changes. Due to the change in capacitance, the capacitive touch panel can recognize the area where the toes of the conductive artificial nail approached or touched, and can operate in the same way as when the finger approaches or touches. It becomes possible.
Conventionally, a miniaturized capacitive touch panel is difficult to operate with a finger because input buttons and the like are small, and a dedicated pen such as a stylus pen is required. However, by forming a conductive artificial nail on the surface of the nail using the sculpture material of the present invention, it becomes possible to operate with the toe of the conductive artificial nail. The input button can be touched without an erroneous operation, and as a result, an easy and accurate input operation can be performed.

  In the present invention, it is possible to provide a sculpture material that can be applied to the surface of the nail so that the capacitive touch panel can be operated with the nail tip.

It is a schematic perspective view which shows an example of a general projection type capacitive touch panel. It is a schematic plan view which shows an example of the transparent electrode layer which comprises the general projection type capacitive touch panel. It is the schematic which shows an example of the operation principle of a general projection type capacitive touch panel. It is a schematic perspective view which shows an example of a general surface type capacitive touch panel. It is a schematic plan view which shows an example of the transparent electrode layer which comprises the general surface type capacitive touch panel. It is the schematic which shows an example of the operation principle of a general surface type capacitive touch panel. It is a schematic process drawing which shows an example of the method of forming an artificial nail using the sculpture material of this invention. It is a schematic process drawing which shows the other example of the method of forming an artificial nail using the sculpture material of this invention. It is the schematic which shows an example of the artificial nail | claw formed using the sculpture material of this invention. It is a schematic sectional drawing which shows the other example of the artificial nail | claw formed using the sculpture material of this invention. It is the schematic which shows the other example of the artificial nail | claw formed using the sculpture material of this invention. It is a graph which shows the evaluation result of an Example.

I. Sculpture material The sculpture material of the present invention is characterized in that the artificial nail formed on the surface of the nail has a conductive material in an amount capable of imparting the nail tip with conductivity sufficient to operate a capacitive touch panel. To do.

A general sculpture material is used by applying a resin or the like to the surface of the nail, forming it into a desired shape, and then curing it. Such a sculpture material is usually transparent and imparts a cosmetic effect to the surface of the nail by drawing a vivid color tone or design on the surface of the artificial nail formed using the sculpture material. Can do. Moreover, it can be formed into a beautiful shape by extending the length of the nail or giving the nail a thickness.
Hereinafter, a method for forming a conductive artificial nail using the sculpture material of the present invention will be described with reference to the drawings.

  FIG. 7 is a schematic process diagram showing an example of a method for forming a conductive artificial nail using the sculpture material of the present invention. First, a pattern called a nail farm 9 is installed on the surface of the claw 7 shown in FIG. 7A as shown in FIG. 7B. Next, as shown in FIG.7 (c), the sculpture material 10 containing resin is apply | coated and shape | molded on the surface of the nail | claw 7 along the said nail farm 9 so that it may become a desired shape. At this time, the length and thickness of the nail are appropriately adjusted according to preference. Thereafter, the applied sculpture material 10 is cured as shown in FIG. 7D to form an artificial nail 20 having conductivity.

FIG. 8 is a schematic process diagram showing another example of a method for forming a conductive artificial nail using the sculpture material of the present invention.
As shown in FIG. 8, when the sculpture material 10 of the present invention is applied to the surface of the nail 7 shown in FIG. 8A, first, the nail tip 11 is attached to the tip of the nail 7 as shown in FIG. The sculpture material 10 is applied so as to cover the surface of the nail 7 and the surface of the nail tip 11, as shown in FIG. 8C. The applied sculpture material 10 is cured as shown in FIG.
In addition, the general thing which consists of acrylic resin, urethane type resin, etc. can be used for the nail chip | tip here.

  Further, when the nail chip 11 is attached to the toe as shown in FIG. 8 and the sculpture material 10 of the present invention is applied so as to cover the surface thereof, the nail chip 11 has the same conductivity as the sculpture material 10 of the present invention. It may have sex. Since the nail chip has conductivity, the capacitance is the same as when the finger approaches or comes into contact with the surface of the capacitive touch panel. This is because the touch panel of the method can be operated with the nail tip of the nail chip.

The process using the sculpture material of the present invention may include other processes as necessary in addition to the processes described with reference to FIGS. For example, in order to improve the adhesion between the nail surface and the conductive artificial nail formed on the nail surface, a process of forming an uneven structure with a nail file called a file on the nail surface, or after curing the sculpture material A step of cutting to adjust the shape, a step of applying decoration by applying pearl, lame, or the like can be given.
7 and 8 may be repeated several times to form a thick conductive artificial nail.

In addition, as a method for curing the sculpture material 10 shown in FIGS. 7D and 8D, generally, curing by a polymerization reaction or curing by ultraviolet irradiation may be mentioned.
Sculptures that are cured by the polymerization reaction are called acrylic nails, while sculptures that are cured by ultraviolet irradiation are called gel nails.
The acrylic nail that is cured by the polymerization reaction is cured with time at room temperature. Since such an acrylic nail has high hardness, it is suitable for giving the nail length.
Gel nails that are cured by ultraviolet irradiation are cured by irradiation of ultraviolet rays, so that the molding operation can be performed until the gel nail has a desired shape. Since such gel nails have a relatively low hardness, they are often used for the purpose of reinforcing the nails by giving them thickness. Gel nails are sometimes referred to as biogels and cargels depending on the manufacturer.
The sculpture in the present invention includes the above acrylic nail, gel nail and the like.

  By the way, conventionally, by forming an artificial nail using a sculpture material on the nail surface, it is difficult to approach or touch the capacitive touch panel with a finger, and the capacitive touch panel is placed on the toe. There was a problem that it was difficult to operate with.

According to the present invention, when the conductive artificial nail has a conductive material, when the toe of the conductive artificial nail approaches or contacts the capacitive touch panel, the finger approaches or contacts Similarly, the capacitance increases between the capacitive touch panel and the conductive artificial nail. That is, in the capacitive touch panel, the capacitance of the surface of the transparent electrode or transparent conductive film corresponding to the area where the conductive artificial nail approaches or comes into contact changes, and the change in the capacitance causes the tip of the nail to move. The approaching or touching area can be recognized. As described above, by wearing the conductive artificial nail according to the present invention, the capacitive touch panel can be operated with the nail tip in the same manner as when a finger approaches or comes into contact.
As a result, the problem that the capacitive touch panel operation is difficult in the case where an artificial nail for decoration and reinforcement of the nail is conventionally applied is solved. In addition, it is not necessary to always have a dedicated tool such as a stylus pen for operating the capacitive touch panel. Furthermore, since a dedicated tool such as a stylus pen is not required, a single-handed operation can be performed when operating a capacitive touch panel mounted on a mobile phone or a smartphone.

  Conventionally, a miniaturized capacitive touch panel has small input buttons and is difficult to operate with a finger, and a dedicated pen such as a stylus pen is required to be used. However, by forming a conductive artificial nail on the surface of the nail using the sculpture material of the present invention, it becomes possible to operate a capacitive touch panel with the nail tip. The input button on the touch panel can be touched without any erroneous operation, and as a result, an easy and accurate input operation can be performed.

Such a sculpture material of the present invention is not particularly limited as long as it has a predetermined amount of a conductive material, and components of a general sculpture material can be used.
Hereinafter, the components of the conductive material and sculpture material used in the present invention will be described.

A. Conductive material As a conductive material in the present invention, a sculpture material is included so that a capacitive touch panel operates on the toe of an artificial nail formed on the nail surface using the sculpture material. There is no particular limitation as long as it is possible to impart properties.

  The conductive material in the present invention may be contained in the sculpture material as a constituent component of a general sculpture material, or may be contained in the sculpture material only as an additive for imparting conductivity. In the present invention, the conductive material is preferably contained in the sculpture material as a constituent component of the sculpture material.

In the present invention, conductive enough to be operated a capacitive touch panel is one in which different by the touch panel type and size of the capacitive type, specifically, sculpture of the present invention The resistance value of the conductive artificial nail formed on the nail surface using the material is preferably, for example, 2.10 × 10 ² Ω or less.

  In addition, the said resistance value is the value measured using 4 terminal measuring system LCR meter Loresta GP MCP-T610 type (Mitsubishi Chemical Analytech Co., Ltd.).

The form of such a conductive material is not particularly limited as long as desired conductivity can be imparted by adding to the sculpture material. For example, powder, liquid, gel, fiber A conductive material in the form of a shape.
Specific examples of the conductive material include conductive pigments and conductive dyes.

  Examples of the conductive powder material include tin-based oxides, tin-antimony oxides, titanium oxide / tin-antimony oxides, and indium-tin oxides. In addition, metals such as Al, Ag, Au, Cu, Fe, Mn, Mo, Ni, Pd, Pt, Sn, W, and zinc can be used. When the metal powder is used for a sculpture, the sculpture can be provided with conductivity, and the sculpture can be colored to give it a glossy feeling with added lame.

  Examples of the liquid conductive material include tin-antimony oxide paint / dispersion, indium-tin oxide paint / dispersion, and the like.

  Gel-like conductive materials include, for example, polyacetylene, p-phenylene vinylene, polypyrrole, polythiophene, polyaniline, PVC polymer and butadiene (BD) -acrylonitrile (AN) copolymer mixture, graft copolymer, BD-AN-vinyl chloride Examples include terpolymers, PVC-polyurethane graft copolymers, conductive polymers such as styrene-diene-pyrrole terpolymers, polyacetylene derivatives, polypyrrole derivatives, polythiophene derivatives, polyaniline derivatives, and methacrylic resins.

Examples of the fibrous conductive material include white conductive fibers having a conductive polymer layer made of a polyamide-based thermoplastic polymer and a protective polymer made of a fiber-forming thermoplastic polymer.
In addition to the above, it is also possible to use a conductive material in the form of a colloid or fine particles.

Further, as described above, in addition to the conductive material in which the material itself has conductivity, a conductive material obtained by adding a conductivity-imparting substance to a non-conductive material can be used.
Examples of the non-conductive material include general polymers such as polyolefin, polyamide, polyimide, phenol resin, epoxy resin, and polyurethane.
Examples of the conductivity imparting body include metal powders such as Al, Ag, Au, Cu, Fe, Mn, Mo, Ni, Pd, Pt, Sn, W, and zinc, alloys combining these metals, ITO, ZnO, Examples thereof include metal oxides such as SnO ₂ , metal fibers such as stainless steel, and metal dispersions such as waste cars. Further, carbon black such as acetylene black, oil furnace black, and thermal black, carbon carbon fibers such as PAN and pitch, and graphite-based dispersants such as natural products and artificial materials can be used. Furthermore, a glass bead, a synthetic fiber, etc. are mentioned.

As described above, the conductive material used in the present invention is not particularly limited as long as desired conductivity can be imparted to the artificial nail formed using the sculpture material. It may be used as a film forming component which is a constituent component of a typical sculpture material.
Moreover, as said electroconductive material, the metal powder, pigment, dye, and polymeric material which have electroconductivity can be selected suitably, and it can also be used combining multiple if necessary.

  The color tone of the conductive material is not particularly limited and is appropriately selected depending on the color tone of the sculpture material of the present invention and its use. Examples of the color tone of the conductive material include transparent, white and other light colors, yellow, brown, blue, and the like.

  The amount of the conductive material added is not particularly limited as long as desired conductivity can be imparted to the sculpture material, but if the amount added is too small, the sculpture material is formed using the sculpture material. It may be difficult to operate the capacitive touch panel with the tip of an artificial nail, and if the amount of colored conductive material such as metal powder added is too large, it will look good as an artificial nail. It may worsen and the decorative function may deteriorate.

B. Constituent Component of Sculpture Material The constituent component of the sculpture material used in the present invention is not particularly limited as long as the sculpture material exhibiting desired conductivity can be obtained by adding the above-described conductive material. Constituent components of the sculpture material used in the above can be used.
Here, as a component of a sculpture material generally used, for example, a component of an acrylic nail material used for an acrylic nail that is cured by a polymerization reaction, or a gel nail material used for a gel nail that is cured by ultraviolet irradiation Constituent components and the like can be mentioned. The components used for the acrylic nail material and the gel nail material are different from each other.
Hereinafter, as a specific example of the constituent component of the sculpture material used in the present invention, the constituent component of the acrylic nail material and the constituent component of the gel nail material will be described.

1. Component of acrylic nail material The component of the acrylic nail material used in the present invention is not particularly limited as long as it is generally used, and examples thereof include those having a liquid composition and a powdery composition. .
Specifically, the liquid composition and the powdery composition include a liquid composition having a methyl methacrylate monomer and a small amount of a tertiary amine as a polymerization accelerator, and polymethacrylic acid. Acrylic nail materials having a powdered methyl polymer and a powdered composition having benzoyl peroxide as a catalyst, and higher quality mono (meth) acrylates, polymerizable poly (meth) acrylates, and organic hydroper Examples thereof include a liquid composition composed of three components of oxide, and an acrylic nail material having a powdered composition composed of three components of bead polymer powder, thiourea and / or thiourea derivative, and organic vanadium compound.
In addition to the above, an acrylic nail material having an ethylenically unsaturated monomer, a photopolymerization initiator, and fine inorganic powder can be used.

  Hereinafter, as specific examples, a liquid composition composed of the above-mentioned mono (meth) acrylate, polymerizable poly (meth) acrylate, and organic hydroperoxide, a bead polymer powder, thiourea and / or thiourea derivatives, And a powdery composition comprising three components of an organic vanadium compound will be described.

(1) Liquid composition The liquid composition constituting the acrylic nail material of the present invention has three components of mono (meth) acrylate, polymerizable poly (meth) acrylate, and organic hydroperoxide. There is no particular limitation.
Hereinafter, the description will be divided into mono (meth) acrylate, polymerizable poly (meth) acrylate, and organic hydroperoxide.

(A) Mono (meth) acrylate Mono (meth) acrylate constituting the liquid composition is a component that imparts mechanical strength as an artificial nail.

  Examples of the mono (meth) acrylate used in the present invention include ethyl methacrylate, n-butyl methacrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, tetrahydrofurfuryl methacrylate, cyclohexyl methacrylate, acetyloxyethyl methacrylate, and tetrahydrofurfur. And furyl acrylate.

  As content in the liquid composition of such a mono (meth) acrylate, it is preferable to exist in the range of 40 weight%-95 weight%, for example. This is because when the amount is less than the above range, a relatively large amount of polymerizable poly (meth) acrylate, which will be described later, increases, and the composition may become brittle. On the other hand, when the amount is larger than the above range, relatively less polymerizable poly (meth) acrylate, which will be described later, is decreased, and the mechanical strength may be lowered.

(B) Polymerizable poly (meth) acrylate The polymerizable poly (meth) acrylate constituting the liquid composition is a component copolymerized with the above-described mono (meth) acrylate and has crosslinkability.

  Examples of the polymerizable poly (meth) acrylate used in the present invention include neopentyl glycol, diethylene glycol, triethylene glycol, 1,3-butanediol, 1,6-hexanediol, trimethylolpropane, and bisphenol A dioxyethyl. Examples include esters of ethers and polyols such as bisphenol A dioxypolyethylene glycol ether and (meth) acrylic acid.

  As content in the liquid composition of such polymerizable poly (meth) acrylate, it is preferable to exist in the range of 5 weight%-60 weight%, for example. This is because when the amount is less than the above range, the above-mentioned mono (meth) acrylate is relatively increased, and the mechanical strength may be lowered. On the other hand, when the amount is larger than the above range, the above-mentioned mono (meth) acrylate is relatively decreased and the composition may become brittle.

(C) Organic hydroperoxide The organic hydroperoxide constituting the liquid composition is a polymerization catalyst when the mono (meth) acrylate and the polymerizable poly (meth) acrylate are copolymerized.

  Examples of the organic hydroperoxide used in the present invention include cumene hydroperoxide, tertiary butyl hydroperoxide, p-menthane hydroperoxide, and the like.

  As content of such organic hydroperoxide, it is 0.1 weight%-5.0 weight% with respect to the total amount of the said mono (meth) acrylate and the said polymeric poly (meth) acrylate, for example. It is preferable to be within the range.

(D) Other components As the liquid composition constituting the acrylic nail material, a dye, an antioxidant, a polymerization inhibitor, an ultraviolet ray inhibitor and the like may be added as necessary in addition to the above-described three components. it can.

(2) Powdery composition The powdery composition constituting the acrylic nail material of the present invention has three components: a bead polymer powder, a thiourea and / or thiourea derivative, and an organic vanadium compound. There is no particular limitation as long as it is present.
Hereinafter, the description will be divided into bead polymer powder, thiourea and / or thiourea derivatives, and organic vanadium compounds.

(A) Bead-like polymer powder The bead-like polymer powder constituting the powder-like composition prevents the acrylic nail material before curing from becoming highly viscous when the liquid composition and the powder-like composition described above are mixed. It has an effect. It is because it may become difficult to shape | mold so that it may become a desired shape because the acrylic nail material before hardening is high-viscosity.

  The bead polymer powder used in the present invention is preferably one that dissolves to some extent in the liquid composition described above from the viewpoint of workability and smoothness. This is because if the bead polymer powder is too dissolved in the liquid composition, the viscosity becomes high, and if the solubility is low, the viscosity cannot be obtained. Examples of such bead polymer powder include homopolymers and / or copolymer polymers such as methyl methacrylate, ethyl methacrylate, n-butyl methacrylate, and vinyl acetate.

(B) Thiourea and / or thiourea derivative The thiourea and / or thiourea derivative constituting the powdery composition is used as a polymerization accelerator.

  Examples of thiourea and / or thiourea derivatives used in the present invention include 1-acetyl-2-thiourea, tetramethylthiourea, trimethylthiourea, 1-benzoyl-2-thiourea, 1-phenyl-2-thiourea. 1,1-diphenyl-2-thiourea and the like.

  The content of such thiourea and / or thiourea derivative is preferably in the range of 0.01% by weight to 2.0% by weight, for example, with respect to the bead polymer powder described above.

(C) Organic vanadium compound The organic vanadium compound which comprises a powdery composition is used as a polymerization accelerator.

  Examples of the organic vanadium compounds used in the present invention include acidic alkyl phosphate vanadium salts and acetylacetone vanadium salts obtained by reacting vanadium compounds with mono- or dialkyl acid esters.

  The content of such an organic vanadium compound is preferably within a range of, for example, 0.01% by weight to 2.0% by weight with respect to the bead polymer powder described above.

(D) Other components As a powdery composition which is a constituent component of the acrylic nail material, in addition to the above-described three components, colloidal silica as a thixotropic agent, titanium oxide as an opacifier, as necessary, Dyes, pigments and the like can be added.

(3) Components of the acrylic nail material When the liquid composition and the powder composition are used as the components of the acrylic nail material used in the present invention, the content of the liquid composition and the powder composition Is not particularly limited as long as it has a desired viscosity. For example, it is preferable that the same amount of the liquid composition and the powdery composition are mixed.

2. Component of Gel Nail Material The component of the gel nail material used in the present invention is not particularly limited as long as it is cured to a certain degree by ultraviolet irradiation, but usually a film-forming polymer, photopolymerization Monomers, photopolymerization initiators, solvents and the like are used.
Hereinafter, the film forming polymer, the photopolymerizable monomer, the photopolymerization initiator, and the solvent will be described separately.

(1) Film-forming polymer Examples of the film-forming polymer include urethane-based polymers. The polymer here includes a copolymer and an oligomer.

  Examples of the urethane polymer include polyurethane, polyurethane (meth) acrylate, polyurethane-polyvinylpyrrolidone, polyester-polyurethane, polyether-polyurethane, polyurea-polyurethane and the like. In the present invention, among them, a polymer of a urethane monomer having an ultraviolet curable group, the same oligomer, or a polymer containing the oligomer is preferable. Specific examples include urethane (meth) acrylate oligomers and polyurethane (meth) acrylates.

  The content of such a film-forming polymer is a conductive artificial material that has sufficient applicability to apply the sculpture material of the present invention to the nail, is photocured by ultraviolet irradiation, and has a certain degree of hardness. Although it will not specifically limit if it is a grade which can be set as a nail | claw, For example, it is preferable to exist in the range of about 0.1 mass%-80 mass%.

(2) Photopolymerizable monomer Examples of the photopolymerizable monomer 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, dipentaene Ritoritol penta (meth) acrylate, dipentaerythritol hexa (meth) acrylate, 1,6-hexanediol di (meth) acrylate, benzyl (meth) acrylate, cardoepoxy di (meth) acrylate, N, N'-methylenebis Examples include acrylamide.

  The content of such a photopolymerizable monomer is sufficient to apply the sculpture material of the present invention to the nail, and is a conductive artificial material having a certain degree of hardness when photocured by ultraviolet irradiation. Although it will not specifically limit if it is a grade which can be set as a nail | claw, For example, it is preferable to exist in the range of about 1 mass%-30 mass%.

(3) Photopolymerization initiator Examples of the photopolymerization initiator include 1-hydroxycyclohexyl phenyl ketone; benzophenone, 4,4′-bis (dimethylamino) benzophenone, 3,3-dimethyl-4-methoxy-benzophenone, and the like. Benzophenone derivatives; anthraquinone derivatives such as anthraquinone, 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- Acetophenone derivatives such as dimethoxy-2-phenylacetophenone and 2,2-diethoxyacetophenone; 2-chlorothioxanthone, diethylthioxanthone, isopropylthio Thioxanthone derivatives such as xanthone and diisopropylthioxanthone; acetophenone, 2,2-dimethoxy-2-phenylacetophenone, 2-hydroxy-2-methylpropiophenone, 4′-isopropyl-2-hydroxy-2-methylpropiophenone, 2 Acetophenone derivatives such as methyl-1- [4- (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) pronopane, dimethyl Benzyl ketal, trimethylbenzoyldi E cycloalkenyl phosphine oxide, tribromomethylphenylsulfone, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) - butan-1-one, and the like.

  As the content of such a photopolymerization initiator, an artificial nail having sufficient applicability to apply the sculpture material of the present invention to the nail, photocuring by ultraviolet irradiation and having a certain degree of hardness, and Although it will not specifically limit if it is a grade which can do, For example, it is preferable to exist in the range of about 0.001 mass%-10 mass%.

(4) Solvent 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 acetate solvents such as methyl acetate, Examples include ester solvents such as butyl acetate, and ketone solvents such as methyl ethyl ketone, methyl isobutyl ketone, and cyclohexanone.

  The content of such a solvent may be an artificial nail that has sufficient applicability to apply the sculpture material of the present invention to the nail and is photocured by ultraviolet irradiation to have a certain degree of hardness. Although it will not specifically limit if it is a grade which can be performed, For example, it is preferable to exist in the range of about 1 mass%-60 mass%.

(5) Other components As a constituent component of gel nail, other components can be added as necessary in addition to the above-described film-forming polymer, photopolymerizable monomer, photopolymerization initiator, and solvent.
Examples of other components include antifoaming agents, buffering agents, chelating agents, dispersing agents, dyes, fillers, pigments, preservatives, resin powders (poly (meth) acrylic acid, etc.), thickeners, wetting agents. Etc.

II. Method for Using Sculpture Material A method for using the sculpture material of the present invention will be described.
In the present invention, by forming a conductive artificial nail using the sculpture material of the present invention, when the conductive artificial nail approaches or contacts the surface of a capacitive touch panel, the conductive The proximity of the capacitive touch panel or the contact position and the human body can be electrically connected via the artificial nail, and the capacitive touch panel can be operated by the conductive artificial nail. .
In order to obtain the above effect, first, it is necessary to form a conductive artificial nail on the nail surface so that the sculpture material comes into contact with the human body, and further, when operating the capacitive touch panel, or The toe to contact must be a conductive artificial nail formed using the sculpture material of the present invention.
Here, the human body in the present invention refers to a part having electrostatic conductivity, that is, a part that can be assumed to be ground when operating a capacitive touch panel, for example, a part of a cuticle or a nail. Refers to skin and the like. Further, the cuticle is skin for protecting the nail half moon, and the nail half moon is a portion that creates a nail at the nail's hairline.

Further, when forming a conductive artificial nail using the sculpture material of the present invention, in the conductive artificial nail, a portion that contacts the human body and a toe portion that approaches or contacts the capacitive touch panel Are required to be electrically connected to each other. Examples of a method for electrically connecting a portion of the conductive artificial nail that contacts the human body and a toe portion of the nail tip include, for example, a portion that contacts the human body and a toe portion of the nail tip in the conductive artificial nail. The method of forming so that it may continue is mentioned.
Hereinafter, the method for forming the conductive artificial nail so as to be in contact with the human body and the method for forming the conductive artificial nail in a toe region that approaches or contacts the capacitive touch panel will be described in detail. .

A. Method for Forming Contact with Human Body A method for forming a conductive artificial nail on the nail surface so that the sculpture material of the present invention contacts the human body will be described with reference to the drawings.

Fig.9 (a) is schematic which shows an example of the electroconductive artificial nail | claw formed in the nail | claw surface using the sculpture material of this invention. 9B is a cross-sectional view taken along the line AA in FIG. 9A, and FIG. 9C is a cross-sectional view taken along the line BB in FIG. 9A.
As shown in FIG. 9A, the conductive artificial nail 20 formed using the sculpture material of the present invention is formed on the surface of the nail 7.

In the present invention, the conductive artificial nail and the human body are in contact with each other when the conductive artificial nail is formed on the surface of the nail using the sculpture material. Indicates that at least one point is touched.
For example, as shown in a region surrounded by a dotted line in FIGS. 9A and 9B, the conductive artificial nail 20 may be formed so as to contact the cuticle 8 in the finger 100. FIG. As shown in b), the conductive artificial nail 20 may be formed so as to be in contact with the skin 12 on the back surface of the nail 7 at the boundary between the nail 7 and the skin, or 9 (c), the conductive artificial nail 20 is formed so as to come into contact with the skin 13 at the nail border between the nail 7 parallel to the length direction of the nail 7 and the skin. May be.

Thus, when the sculpture material of the present invention is applied to the surface of the nail so that the conductive artificial nail and the human body are in contact with each other, the sculpture material (conductive artificial nail) and the human body, that is, the skin on the cuticle or the nail, etc. As for the contact area between the capacitive touch panel and the human body via the conductive artificial nail, the toe of the conductive artificial nail approaches or comes into contact with the capacitive touch panel. There is no particular limitation as long as it is electrically connected and can operate the capacitive touch panel. For example, it is preferable that the conductive artificial nail and the human body have a contact area of about 30 mm ² . Since the contact area between the conductive artificial nail and the human body is the above-described size, when the conductive artificial nail approaches or comes into contact with a capacitive touch panel, the conductive artificial nail is interposed via the conductive artificial nail. This is because the human body and the capacitive touch panel are electrically connected, and a sufficient reaction is observed.
Here, the contact area refers to the total area where the cuticle and the skin near the nail are in contact with the conductive artificial nail.

B. Method for forming a toe part for operating a capacitive touch panel Using the sculpture material of the present invention, a method for forming a conductive artificial nail on a toe part for operating a capacitive touch panel is described with reference to the drawings. While explaining.

FIG. 10 is a schematic cross-sectional view showing another example of the conductive artificial nail formed on the surface of the nail using the sculpture material of the present invention.
As shown in FIG. 10, the conductive artificial nail 20 formed using the sculpture material of the present invention is formed on the surface of the nail 7.

In the present invention, the conductive artificial nail is formed using the sculpture material of the present invention at the tip portion where the capacitive touch panel is operated, for example, as shown in FIG. 10 (a), the sculpture material of the present invention. The conductive artificial nail 20 formed by using the nail 7 may be formed up to the tip portion of the nail 7, or, as shown in FIG. You may form from the front-end | tip part to the back surface. In this invention, it is preferable that the said conductive artificial nail | claw is formed from the front-end | tip part of a nail | claw to the back surface. When the toe portion where the conductive artificial nail having conductivity is formed approaches or comes into contact with the capacitive touch panel, the gap between the conductive artificial nail tip and the surface of the capacitive touch panel An electrostatic capacity is generated in this area, and the contact position is detected by the change in the electrostatic capacity. The electrostatic capacity generated at this time is proportional to the contact area. Therefore, it is preferable that the conductive artificial nail is formed in a wider area in the nail tip area approaching or contacting the capacitive touch panel.
Further, as shown in FIG. 8, when the nail tip 11 is provided at the tip of the nail 7 and the sculpture material of the present invention is applied so as to cover the surface thereof, the conductive artificial nail 20 is not shown. However, it is preferable that the sculpture material of the present invention is applied to the back surface of the nail.
In addition, the action which applies a sculpture material to the back surface of a nail | claw and forms an artificial nail | claw is performed originally, and has the effect which makes the formed artificial nail | claw difficult to peel off.
Reference numerals not described in FIG. 10 can be the same as those in FIG.

C. Other Configurations As described above, when the conductive artificial nail is formed using the sculpture material of the present invention, the conductive artificial nail is in contact with the human body and the capacitive touch panel is operated. The conductive artificial nail is not particularly limited as long as the conductive artificial nail is formed at the tip of the nail in contact with the nail. For example, a decoration such as a commercially available manicure is formed after the conductive artificial nail is formed. You may go. This case will be described with reference to the drawings.

FIG. 11 is a schematic view showing a nail in which a conductive artificial nail is formed on the surface of the nail using the sculpture material of the present invention, and the surface of the conductive artificial nail is decorated with nail polish. FIG. 11B is an enlarged schematic view of a region surrounded by a dotted line A in FIG. 11A, and FIG. 11C is an enlarged schematic view of a region surrounded by a dotted line B in FIG. FIG.
As shown in FIG. 11A, when the conductive artificial nail 20 having conductivity is formed on the surface of the nail 7, the conductive artificial nail 20 and the human body (here, the cuticle 8) are in contact as described above. If the conductive artificial nail 20 is formed up to the nail portion that touches the capacitive touch panel (dotted line A region), there is no particular limitation (dotted line B region). A commercially available nail polish 14 or the like may be applied to the surface of the artificial nail 20.
Therefore, as shown in FIG. 11B, the nail polish 14 may not be in contact with the human body (here, the cuticle 8), and although not shown, the nail polish may be in contact with the human body.
On the other hand, when operating the capacitive touch panel, as shown in FIG. 11 (c), the tip of the nail approaching or contacting the capacitive touch panel is electrostatic in the nail tip region B1. When operating a capacitive touch panel, the outermost surface of the nail tip region B1 is preferably the conductive artificial nail 20 having conductivity. That is, in this case, it is preferable that the nail polish 14 is not applied to the nail tip region B1.
Furthermore, when the capacitive touch panel is operated in the nail back region B2, the outermost surface of the nail back region B2 is preferably the conductive artificial nail 20 having conductivity. That is, in this case, it is preferable that the nail polish 14 is not applied to the nail back region B2.
Here, the nail polish liquid includes a base coat nail polish liquid, a nail color nail polish liquid, and a top coat nail polish liquid.

  As described above, in the present invention, the toe portion approaching or contacting when operating the capacitive touch panel and the human body are electrically connected via the conductive artificial nail having conductivity. It only has to be. Since the conductive artificial nail has a ground potential due to contact with the human body, when the toe of the conductive artificial nail approaches or comes into contact with the capacitive touch panel, the electrostatic capacitance of the corresponding electrode The capacity will change. The capacitance type touch panel can recognize a region where the toe approaches or contacts by changing the capacitance, and can perform the same operation as when the finger approaches or contacts. .

D. Method for removing artificial nail As a method for removing the conductive artificial nail formed on the nail surface using the sculpture material of the present invention, a general method can be used. For example, in an acrylic nail that is cured by a polymerization reaction, acetone is soaked into an acrylic nail formed on the nail surface and removed. Moreover, in the gel nail | curing hardened | cured by ultraviolet irradiation, the gel nail formed in the nail | claw surface is shaved and removed using tools, such as a special file. Such a removal method is appropriately adjusted depending on the thickness of the conductive artificial nail formed on the nail surface.

  The present invention is not limited to the above embodiment. The above-described embodiment is an exemplification, and the present invention has substantially the same configuration as the technical idea described in the claims of the present invention, and any device that exhibits the same function and effect is the present invention. It is included in the technical scope of the invention.

  The following examples illustrate the present invention in more detail.

[Example 1]
(Preparation of sculpture material)
A sculpture material was obtained by adding 36% by weight of Ag metal powder as a conductive material to a commercially available acrylic nail.

(Formation of conductive artificial nails)
Using the sculpture material, a conductive artificial nail was formed on the nail surface. At that time, when the conductive artificial nail approaches or comes into contact with the capacitive touch panel so that the contact area between the human body and the conductive artificial nail is about 30 mm ² , the conductive artificial nail The state is such that the capacitive touch panel and the human body are electrically connected to each other.

(Measurement of resistance value)
The resistance value of the conductive artificial nail was measured using a 4-terminal measurement type LCR meter Loresta GP MCP-T610 type (Mitsubishi Chemical Analytech Co., Ltd.).
Four contact terminals (probes) of the device were brought into contact with the conductive artificial nail, and the resistance value was confirmed.

(Confirmation of operability of capacitive touch panel)
Next, it was confirmed whether or not the conductive artificial nail has conductivity sufficient to operate a capacitive touch panel.
Using the projected capacitive touch panel sensor evaluation kit (Synaptics), the conductive artificial nail is evaluated for the signal level when the conductive artificial nail approaches or comes into contact with the capacitive touch panel. Was determined to satisfy the contact recognition level of the capacitive touch panel. The contact area between the conductive artificial nail and the capacitive touch panel was about 8 mmφ circular area. Note that the capacitive touch panel used this time required a capacitance of less than 1 pf to operate.

[Example 2]
A sculpture material was prepared in the same manner as in Example 1 except that 20% by weight of ITO powder was added as a conductive material to a commercially available acrylic nail, and the same evaluation as in Example 1 was performed.

[Example 3]
A sculpture material was prepared in the same manner as in Example 1 except that a commercially available gel nail was used as the sculpture material, and the same evaluation as in Example 1 was performed.

[Example 4]
A sculpture material was prepared in the same manner as in Example 1 except that 20% by weight of ITO powder as a conductive material was added to a commercially available gel nail, and the same evaluation as in Example 1 was performed.

[Comparative example]
A sculpture material was prepared in the same manner as in Example 1 except that the sculpture material did not have a conductive material, and the same evaluation as in Example 1 was performed.

[Evaluation results]
When the resistance value of the conductive artificial nail formed using the sculpture material of the present invention is 2.10 × 10 ² Ω or less, the capacitive touch panel can be operated by the conductive artificial nail. It was confirmed.
Table 1 shows resistance values, maximum detection reaction values, and determination results of Examples 1 to 4 and Comparative Examples based on the content of the conductive material.
Moreover, the measurement result of the maximum detection reaction value is shown in FIG.
The determination result was “◯” when the maximum detection reaction value was such that the capacitive touch panel would react, and the determination result was “X” when the maximum detection reaction value was less than that.

DESCRIPTION OF SYMBOLS 1 ... Electrostatic capacitance type touch panel 2 ... Transparent substrate 3 ... Transparent electrode layer 31, 32 ... 1st transparent electrode layer, 2nd transparent electrode layer 31X, 32Y ... Transparent electrode 4 ... Protective cover 5X, 5Y ... For X coordinate detection Conductive part, conductive part for Y-coordinate detection 6 ... transparent conductive film 61 ... electrode 7 ... nail 8 ... cuticle 9 ... nail farm 10 ... sculpture material 11 ... nail tip 12 ... nail skin 13 ... nail skin 14 ... nail polish 20 ... conductive artificial nails 100 ... fingers

Claims (2)

Artificial nail formed on the nail surface, have a quantity of conductive material capacitive touch panel is capable imparting a degree of conductivity that operates toe,
The sculpture material, wherein the resistance value of the artificial nail formed on the nail surface is 2.10 × 10 ² Ω or less . An artificial nail manufacturing method for manufacturing an artificial nail by placing and curing a sculpture material on the nail surface,
The sculpture materials, artificial nail formed on the nail surface, have a quantity of conductive material capacitive touch panel is capable imparting a degree of conductivity that operates toe,
A method for manufacturing an artificial nail, wherein a resistance value of the artificial nail formed on the nail surface is 2.10 × 10 ² Ω or less .

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