JP2566435B2 - Handmade molded products - Google Patents

Description

TECHNICAL FIELD The present invention relates to handmade molded articles such as false nails, handicrafts, ornaments and prototypes.

2. Description of the Related Art As a related art related to the present invention, an "artificial nail" will be outlined.

With the improvement of cultural life, the practice of "fake nails" is becoming popular among women. False nails are artificial nails that are attached to the nails to decorate the fingertips and exert an aesthetic effect.

False nails are generally made of plastic or metal curved nail-shaped molded products (hereinafter referred to as molded nails), and may be colorless, colored, or have a flat or three-dimensional decoration on the back. is there.

This molding nail is attached to the fingernail. The attachment method includes (1) a full-fledged adhesion method, that is, α-
A method in which a cyanoacrylate-based instant adhesive is applied to the nail and the nail molded product is adhered in earnest. (2) Temporary adhesion method, that is, the molded nail is easily adhered to the nail with an adhesive to facilitate attachment and detachment. There are two methods.

As the former full-fledged adhesive method, for example, Japanese Patent Laid-Open No. 55-8785 discloses an artificial nail in which an artificial nail made of a plastic sheet having an appropriate thickness is adhesively bonded to a natural nail with a cyanoacrylate adhesive and a method for forming the artificial nail. It is shown. Japanese Unexamined Patent Publication (Kokai) No. 60-232108 discloses that a false false nail having a two-layer structure is bonded with a cyanoacrylate adhesive or a synthetic resin adhesive.

As the latter method of temporarily adhering, for example, Japanese Utility Model Application Laid-Open No. 57-48804 discloses a nail that is elastic or has a pressure sensitive adhesive attached to the back surface of a paper material. Japanese Patent Laid-Open No. 59-55204 discloses a simple nail polish method using an adhesive sheet. The above-mentioned JP-A-60-232108 also describes a method of mounting an adhesive.

In the case of the full-fledged adhesive method, the molded nail is adhered to the nail by using the α-cyanoacrylate instant adhesive, but the commonly used ethyl α-cyanoacrylate generates heat at the time of adhesion, or is caused by a remover such as remover acetone). Since the peeling time is long, it has been proposed to use α-cyanoacrylate whose alkyl group is n-propyl group, isopropyl group or n-butyl group. (See JP-A-58-99908) Problems to be Solved by the Invention The conventional artificial nail described above has the following problems.

First of all, in the method of attaching a molded nail to a nail by a full-fledged adhesive method, the shape of the nail is different for each person, so it is important to choose one that fits exactly the curvature of your nail from a large number of molded nails. It's not easy, if you glue a ready-made molding nail, it can be shortened by cutting if the length is long, but the opposite is not possible.Since the ready-made molding nail is limited to a certain shape,
It is not always satisfactory if you want to emphasize individuality.Since the molded nail is generally hard, if you hook the artificial nail with something, you may peel the raw nail or you may be scratched by someone or clothes. However, if a molded nail is adhered to the entire surface of the nail, it impedes the respiratory action at the hairline of the nail and may cause bacterial infection. In order to avoid this problem, it is necessary to keep the wearing period within 1 to 2 days, or to mount the molding nail only on the tip of the nail. Removing it in 1 to 2 days is psychologically difficult, and the attaching and detaching operation is troublesome. In the latter case, the step between the artificial nail and the nail is conspicuous, and cutting to eliminate the step is performed. However, the step is not completely eliminated and it is aesthetically unpleasant.The removal of the molded nail adhered to the nail is done by attaching a remover such as acetone to the nail, but especially the molded nail adhered to the entire surface of the nail is removed. Is difficult to penetrate, and often cannot be easily removed.

Although the temporary adhesive method is simple, it has an inherent disadvantage that the finish is inferior to the full-scale adhesive method, and is only convenient.

Under such a background, the present invention provides handmade molded articles such as artificial nails, handicrafts, ornaments and prototypes, and in particular, when the molded articles are artificial nails, An object of the present invention is to provide a long-term fixed type false nail that fits the nail and can be easily attached and detached.

Means for Solving the Problems The handmade molded product of the present invention is a handmade product such as artificial nail, handicraft product, ornamental product, prototype, and the like. On the fiber sheet (1) as a core material made of a heat-meltable fiber material, α-
A cyanoacrylate-impregnated cured product layer (2) is formed,
In addition, the whole is shaped into a desired shape.

 The present invention will be described in detail below.

As the fiber sheet (1) used as the core material, a fiber sheet such as a woven fabric, a knitted fabric, a non-woven fabric or paper made of a hydrophilic fiber material containing a small amount of water or at least a part of a heat-meltable fiber material is used. can give.

Examples of hydrophilic fiber materials include cellulosic fibers, polyamide fibers, vinyl alcohol fibers and the like. Since these contain a small amount of water in the fiber, the impregnated α-cyanoacrylate is cured not only by the water in the air but also by the water contained in the fiber sheet,
The curing is done quickly.

Examples of the heat-meltable fiber material include a fiber containing at least a part of a low-melting synthetic fiber (a part of the fiber may be a low-melting point component such as a composite fiber). When a fast curing rate such as ethyl α-cyanoacrylate or methyl α-cyanoacrylate is used as α-cyanoacrylate described later, heat is generated during the curing reaction to melt at least a part of the fiber sheet (1). be able to. When such melting occurs, the fibers constituting the fiber sheet (1) are fused together and integrated with each other, and tend to be transparent, so that a smooth and beautiful molded product in which the entangled structure of the fibers is not visible. Can be obtained. The drawing shows the state at this time, FIG. 1 is a sectional view showing a state immediately after impregnating the fiber sheet (1) with α-cyanoacrylate, and FIG. 2 is an α-cyanoacrylate. FIG. 3 is a cross-sectional view showing a state in which the fiber sheet (1) has been melted by heat generated during curing of.

The fiber sheet (1) is not limited to one sheet, and two or more sheets can be laminated and used. When laminated and used, the adjoining fiber sheets can have the same weft direction, the right angle direction or the oblique direction.

When the fiber sheet (1) as the core material is impregnated with α-cyanoacrylate, the fiber sheet (1) is subjected to α-
It may be impregnated with cyanoacrylate and then shaped into a desired shape, or a fiber sheet previously shaped into a desired shape may be impregnated with α-cyanoacrylate.

The desired shape includes a flat shape, a curved shape, a wavy shape, a cylindrical shape, a tubular section with an irregular cross section, a gutter shape, a rod shape, an L shape,
The shapes include a U-shape, a spiral shape, a container shape, a shape of animals and plants, and a shape imitating various objects.

Examples of the α-cyanoacrylate impregnated cured product layer (2) include, in addition to widely used ethyl α-cyanoacrylate and methyl α-cyanoacrylate impregnated cured product layers,
A cured product layer of α-cyanoacrylate having flexibility or flexibility can be used.

Suitable α-cyanoacrylates for obtaining a cured product having flexibility or flexibility include α containing a plasticizer.
-Cyanoacrylate or relatively high molecular weight α-
Examples include cyanoacrylate.

Examples of the plasticizer include phthalic acid ester, phosphoric acid ester, adipic acid ester, sebacic acid ester, benzoic acid ester, oxalic acid ester, fumaric acid ester, itaconic acid ester, lactic acid polymer, and alkylene carbonate.

Examples of α-cyanoacrylate having a relatively large molecular weight include propyl α-cyanoacrylate, butyl α-cyanoacrylate, cyclohexyl α-cyanoacrylate, allyl α-cyanoacrylate, alkoxyethyl α-cyanoacrylate, 2-chloroethyl α-cyanoacrylate. , Ethoxycarbonylmethyl α-cyanoacrylate, trifluoroethyl α-cyanoacrylate, 1-cyano-1-carbonylalkoxybutadiene
1,3, ethylene glycol-bis (α-cyanoacrylate), trans-2-butene-1,4-diol-bis (α-cyanoacrylate), 2,5-hexanediol-bis (α-cyanoacrylate) Examples thereof include di (1-cyanobutadiene-1,3) carboxylic acid ester of glycol.

Addition of additives such as a storage stabilizer, an organic solvent, a thickener, a filler, a heat resistance imparting agent, and a colorant to the α-cyanoacrylate or the plasticizer-blended α-cyanoacrylate may be further incorporated, if necessary. it can.

Examples of handmade molded articles of the present invention are false nails, handicrafts, ornaments, prototypes and the like.

Among these uses of the handmade molded product, the use of "artificial nail" is special, and therefore, the method of forming the artificial nail will be described below.

In the application of artificial nails, a method of mounting separately prepared artificial nails of the finished product of the present invention on the nails with an adhesive or a pressure-sensitive adhesive can be adopted, but it is particularly preferable to adopt the artificial nail forming method described below. desirable.

That is, in forming a false nail on a nail, (a) using α-cyanoacrylate, pre-bonding a single-layer or multi-layer unshaped fiber sheet (1) piece to the surface of the nail, and then (b) Pre-bonded piece of fiber sheet (1) is shaped into a desired nail shape, and then (c) shaped nail-shaped fiber sheet (1)
The α-cyanoacrylate is applied from the top of the piece to carry out the main adhesion and curing, or (c) the pre-bonded fiber sheet (1) the α-cyanoacrylate is applied from the top of the piece to the main adhesion and curing. Then, (b) the hardened fiber sheet piece is shaped into a desired nail shape, and (d) the finishing is performed to form a false nail.

Action and Effect of the Invention In the handmade molded product of the present invention, the fiber sheet (1)
By combining with, the brittleness of the cured α-cyanoacrylate is overcome, and the characteristics of the materials that make up the fiber sheet (1) are also utilized, creating new physical properties, textures, and aesthetics that cannot be obtained individually. ing. The manufacturing process of handmade molded products is simple and can be freely shaped.

When the handmade molded product of the present invention is a false nail, it can form a false nail that fits the curvature of its own nail, can form a unique false nail that suits one's taste, and has an appropriate flexibility. Since it can form a flexible nail, it has excellent effects such as low risk even if it is caught, not impairing the respiratory action of the nail even if worn for a long time, and easy to remove. Played.

EXAMPLES Next, the present invention will be further described with reference to Examples.

Example 1 (Honeybee-shaped brooch) A bee shape was formed from a piece of cloth made of a low-melting heat-melting nylon fiber, which is a heat-melting fiber material, and impregnated with ethyl α-cyanoacrylate. Cured. Due to the heat generated during curing, the cloth piece melted and became smooth, and a brooch having a beautiful glossy appearance was obtained.

Example 2 (Artificial flower) A cotton cloth, which is a hydrophilic fiber material, was cut into flowers and leaves, ironed to form veins, and impregnated with a plasticizer-containing ethyl α-cyanoacrylate.
Hardened quickly. As a result, an artificial flower having a beautiful appearance was obtained.

Example 3 (Bar-shaped decorative molded product) A column was obtained by winding two cloth pieces made of vinylon, which is a hydrophilic fiber material, in a layered manner. When the surface of the cylinder was impregnated with ethyl α-cyanoacrylate and cured, it rapidly cured and a bar-shaped decorative molded article was obtained.

Example 4 (Fake nail) A piece of cloth made of liner (a thin fabric woven of flax fibers), which is a hydrophilic fiber material, was cut into a size larger than the area of the fingernail.

After dropping one drop of ethyl α-cyanoacrylate in which dioctyl phthalate was added to the surface of the little fingernail in an amount of 30% by weight based on the total weight, the cloth piece was pre-bonded.

The cloth piece after this pre-bonding is cut into a desired shape according to the nail width, and then the α-cyanoacrylate composition is carefully applied to the entire surface of the cloth piece, and the nail of the little finger and the cloth piece are booked. Curing was performed at the same time as bonding. Curing was completed in about tens of seconds.

As a result, since the artificial nail having an appropriate flexibility was formed, finally, the foam was shaped with a file provided with an abrasive layer and finished with a nail polish. Moreover, the decorative article was adhered from above the finished nail as needed.

The artificial nail formed in this way fits exactly to the curvature of the nail, has a good aesthetics, and has moderate flexibility, so even if it is caught on something, it will not be caught or caught. There was little risk of damaging the other party.

Further, by controlling the amount of α-cyanoacrylate at the time of the main adhesion, the air permeability between the nail and the false nail can be maintained, so that even if the false nail is worn for a long period of time, There was no risk of impairing the respiratory action of the hairline or causing bacterial infection.

In addition, even when removing the false nail, since the remover such as acetone penetrates quickly, it can be removed easily and in a short time.

Example 5 (False nail) With two thin pieces of linen cloth stacked on top of each other, only the base end portion of the false nail was cut out in accordance with the shape of the nail of the ring finger, and the other portions were separated from the area of the nail. Cut to larger size.

After dropping one drop of ethoxyethyl α-cyanoacrylate containing a filler on the surface of the nail of the ring finger, the above-mentioned two-ply cloth pieces were pre-bonded.

After the pre-bonding, ethoxyethyl α
-Cyanoacrylate was applied carefully and the nail of the ring finger and the piece of cloth were fully bonded and cured at the same time. After the completion of curing, it was cut into a desired shape according to the nail width.

As a result, artificial nails having appropriate flexibility were formed, and finally the shape was adjusted with a file.

The false nail thus formed was preferable as in the case of Example 4.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state immediately after the fiber sheet (1) is impregnated with α-cyanoacrylate. FIG. 2 is a cross-sectional view showing a state in which the fiber sheet (1) is melted by the heat generated when the α-cyanoacrylate is cured. (1) ... Fiber sheet, (2) .. .alpha.-Cyanoacrylate impregnated cured material layer

Claims (1)

(57) [Claims] 1. A handmade product such as artificial nails, handicrafts, ornaments and prototypes, which is made of a hydrophilic fiber material containing a small amount of water or at least a part of which is a heat-meltable fiber material. A handmade molded article, characterized in that an impregnated cured product layer (2) of α-cyanoacrylate is formed on a fiber sheet (1) as a material, and the whole is shaped into a desired shape.