JPH0254725B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for manufacturing a makeup brush, and in particular to manufacturing an inexpensive and simple makeup brush suitable for use in beauty guidance in stores. Regarding the method.

[Conventional technology]

BACKGROUND ART Conventionally, makeup cosmetics such as lipsticks and eye shadows are often sold at stores while providing beauty guidance to a large number of people. During beauty guidance, a brush with fibers is used in the application area for lipstick, and a brush with foam sponge is used in the application area for eyeshadow and eyebrows. As mentioned above, it is troublesome to use various applicators depending on the cosmetics during in-store beauty guidance, as it is necessary to have many types of applicators available at all times.

Furthermore, in recent cosmetic methods, two or more colors of eyeshadow are often used, and two or more colors of lipstick are also used. In order to use such different colored cosmetics, it is necessary to prepare a large number of cosmetic applicators.

Furthermore, in consideration of hygiene, it is preferable to replace these cosmetic applicators with new ones each time they are used.

Conventional cosmetic applicators generally consist of an application part and a handle (the handle is usually a synthetic resin molded product or a wooden product). The applicator is molded separately, and the applicator and handle are joined together by caulking a metal piece to create a cosmetic applicator.

There is also a cosmetic applicator in which applicator parts are formed at both ends of a single handle.

In addition, there is also a cosmetic applicator that has an applicator part formed in advance and a simple handle connected to the applicator part.

JP-A-57-20215 discloses that a synthetic resin brush shaft with a through hole extending in the axial direction is made, the rear end of a separately prepared hair bundle is separated, and this hair bundle is inserted into the through hole of the brush shaft. Insert the bristle and push it in until the rear end of the bristle remains slightly, let the adhesive penetrate into the rear end of the bristle, dry it to form an adhesive-impregnated layer, and insert the insertion rod into the pen shaft's through hole. Push in the adhesive-impregnated layer of the hair bundle,
A method of manufacturing a cosmetic brush is disclosed in which the tip of the bristle bundle protrudes from a through hole of a brush shaft.

Japanese Patent Publication No. 53-17940 (Japanese Unexamined Patent Publication No. 49-105659) discloses that a band-shaped sponge body is wrapped around the outer periphery of a bundled resin filament and adhered thereto, and a band-shaped paper, cloth, or synthetic resin film is adhered to the outer circumference of the bundled resin filament. A method for manufacturing a cosmetic applicator is disclosed in which a coating device is wound spirally around the outer periphery of a sponge to form an applicator rod, and one end of the applicator rod is cut into a conical shape.

[Problem that the invention seeks to solve]

The conventional cosmetic applicator in which the applicator and handle are molded separately and the applicator and handle are joined by caulking a metal piece, or the cosmetic applicator disclosed in JP-A-57-20215, The number of manufacturing steps is relatively large, and the cost of raw materials is relatively high. In particular, since the handle is made of synthetic resin molding or wood, each handle must be made one by one, making it expensive. Therefore, such applicators are not cheap enough to be disposable, and for this reason, at present, applicators are cleaned after use and reused.

However, such a method of cleaning and reusing applicators after use is preferable from a hygienic point of view, considering that cosmetic applicators are used on the lips and eyes of an unspecified number of people during beauty guidance. That's not the point. If the product is washed after each use, it takes time to dry, is inefficient, and has the problem of not being able to respond smoothly to many beauty instructions.

Cosmetic applicators, which have applicator parts at both ends of one handle, differ in how they are attached to the handle and in the shape of the handle itself, depending on the type of application material (for example, hair or foam). Therefore, the application parts at both ends of one handle usually end up using the same type of application material.
In this way, since the application parts at both ends are of the same type (for example, both are hair), the cosmetics that can be applied are limited to those that are relatively similar, and one cosmetic brush can be used for multiple cosmetics. The problem is that it cannot be done. In addition, since cosmetic brushes are relatively complex to manufacture, they are expensive, non-disposable, and unsuitable for use in over-the-counter beauty guidance.

A cosmetic applicator with a pre-molded application part and a simple handle connected to the application part, or Japanese Patent Application Laid-open No. 1983-
The cosmetic applicator of Publication No. 20215 can only be used for lipstick, eye shadow, or eyebrow applicator used during beauty guidance. During in-store beauty guidance, various applicators are used depending on the cosmetic, as described above. Therefore, with the cosmetic applicator in which a simple handle is connected to the applicator part or the cosmetic applicator disclosed in Japanese Patent Application Laid-Open No. 57-20215, it is necessary to prepare many types of applicators at all times, which is troublesome. The problem still remains unsolved.

In the method for manufacturing a cosmetic applicator disclosed in Japanese Patent Publication No. 53-17940 (Japanese Patent Publication No. 49-105659), a band-shaped sponge body is wrapped around the outer periphery of a resin filament and adhered. In order to prevent the sponge body from opening and unraveling, a band-like material (paper, cloth, or synthetic resin film) must be wrapped and glued in a spiral around its outer periphery. As described above, the cosmetic applicator disclosed in Japanese Patent Publication No. 53-17940 requires a lot of effort to manufacture, and moreover, it takes time to wind the strip in a spiral shape. This cosmetic applicator has a problem in that it has poor production efficiency and therefore cannot be manufactured at low cost.

In addition, in the method of manufacturing a cosmetic applicator disclosed in Japanese Patent Publication No. 53-17940, a focused resin filament is wrapped around a sponge body and fixed by adhesive bonding. There is a risk that the resin filament may come off during this process.

Furthermore, in the cosmetic applicator disclosed in Japanese Patent Publication No. 53-17940, not only the tip of the cone cut into a conical shape of the applicator stick but also the inclined surface of the cone can be used as an applicator. Since the sloped surface is close to the surface, in practice it can only be used for one type of cosmetics (if two types of cosmetics are used, they will mix). Also, depending on the cosmetic, it is suitable to apply it with a sponge body, but in this cosmetic applicator, the inclined surface is a sponge body, and this part is wide, so the sponge body can be used to apply fine parts. cannot be applied.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned background, and it is possible to apply lipstick by combining a brush with a focused fiber body as an application part and a brush with a foamed sponge layer as an application part in one makeup brush. The purpose is to provide the same brush with the functions of a makeup brush and an eye makeup brush, and to manufacture a makeup brush that is extremely convenient for applying makeup at a high production efficiency and at a low cost. By using such a makeup brush, it is intended to enhance the effect of beauty guidance during in-store beauty guidance.

[Means for solving problems]

According to the present invention, a cylindrical foamed sponge body having a donut-shaped cross section is molded, a bundled fiber body is passed through a hole in the donut-shaped cylindrical foamed sponge body, and then the cylindrical foamed sponge body is cut into appropriate dimensions. The above-mentioned problem is solved by a method for manufacturing a cosmetic brush, which is characterized by cutting the cylindrical foam sponge body, and peeling off both or one of the ends of the cylindrical foam sponge body over an arbitrary length to expose the bundled fiber body. To achieve the above objectives.

[Effect]

In the present invention, since the foamed sponge layer is provided around the bundled fiber body and the application part and handle part are integrated, the number of manufacturing steps can be reduced and costs can be reduced.

According to the method for manufacturing a cosmetic applicator of the present invention, the focused fiber body is made to protrude from the foamed sponge layer to have the function of a fiber applicator brush, and the foamed sponge layer also has the function of a foamed application layer. ing.

Therefore, in the cosmetic applicator manufactured by the method of the present invention, lipstick, eyeliner, etc.
It can be applied using the focused fiber body part, and the surface (body part) or corner part (corner part of the body part) of the outer foam sponge layer can be used for eye make-up such as eye shadow. The cosmetic material is appropriately contained on the surface of the foamed sponge layer, and the cosmetic material can be suitably applied. Alternatively, the contours of the lips may be painted with the focused fibers, and the center of the lips may be painted with the foamed sponge layer.

〔Example〕

The invention will now be described in detail with reference to the accompanying drawings, in which embodiments of the invention are illustrated.

The cosmetic brush manufactured by the method of the present invention consists of a fiber bundle 1 and a foam sponge layer 2 surrounding the fiber bundle 1.

The bundled fiber body 1 bundles a large number of fibers having the same thickness and stiffness as those used for the bristles of conventional makeup brushes, and binds the fibers near the longitudinal center with thread or the like. or bonded with an adhesive layer.

The fibers used for the bundled fiber body 1 are polyamide,
Man-made fibers including synthetic fibers such as polyester, acrylic, polyolefin, polyurethane, and vinylon, recycled man-made fibers such as rayon, or horse hair,
It is made of animal hair fibers, including hair such as goat hair. The thickness and number of fibers are appropriately selected depending on the intended use of the fiber bundle of the cosmetic brush of the present invention. In the case of an eyeliner, it is preferable that the fiber bundle 1 is thin and the fibers constituting the fiber bundle 1 themselves are thin and flexible. In the case of a brush used for eyebrow or lipstick, it is appropriate that the bundled fiber body 1 is relatively leftward and that the fibers constituting the bundled fiber body 1 have some stiffness. In the present invention, for example, fibers having a thickness of 0.2 to 200 deniers can be used.

A foamed sponge layer 2 is formed on the surface of the bundled fiber body 1. The foam sponge layer 2 is made of polyurethane,
Synthetic resin foamed sponge layer 2 made of polyvinyl chloride, polyolefin, polyester, etc., or foamed sponge layer 2 made of acrylonitrile butadiene rubber, styrene butadiene rubber, natural rubber, etc.
shall be.

The method for manufacturing the cosmetic brush of the present invention will be explained below.

1 and 2 show a cosmetic brush of the present invention manufactured by the first method described below.

This example uses a mold with a double tube structure. Foamed sponge layer 2 made of synthetic resin or rubber, etc.
After mixing fine air with an oak mixer or the like that mixes a foaming agent into the raw material liquid for foaming, the raw material liquid for foamed sponge layer 2 is injected into the mold and solidified to form a cylindrical foamed sponge body with a donut-shaped cross section. Shape. In addition,
As the foaming treatment method in this case, a method conventionally used in this technical field can be adopted.

An adhesive layer 6 is formed by applying a solvent-type, emulsion-type, pressure-sensitive, or hot-melt type adhesive to the inside of the hole of the doughnut-shaped cylindrical foamed sponge body.

The bundled fiber body 1 is passed through the hole of the donut-shaped cylindrical foamed sponge body coated with the adhesive layer 6, and then the cylindrical foamed sponge body is cut into an appropriate size to form a plurality of pieces.

Then, both or one of the ends of the cut foamed sponge layer 2 is peeled off over an arbitrary length to expose the bundled fiber body 1 and provide a function as a fiber applicator.

In many cases, the exposed end portion 3 of the fiber bundle 1 can be used as is.
However, if necessary, as shown in FIG. 1, a tipping process may be performed to appropriately sharpen the tip into a desired shape. Cosmetic brushes that have been pre-applied are useful for drawing eyeliner and lip contours.

In the embodiment shown in FIG.
Strip both ends of the bundle to an arbitrary length to obtain a bundled fiber body 1.
One tip 3' of the exposed fiber bundle 1 remains cut, and the other tip 3 is shaped into a desired shape. It has been treated with a sharp tip. In this way, the flat end portion 3' of the convergent fiber body is suitable for applying lipstick, and the sharp end portion 3 of the convergent fiber body is suitable for tracing the contours of the lips or for applying delicate eye makeup. Suitable for finishing purposes.

Note that the surface portion 5 or corner portion 4 of the foamed sponge layer 2 is used to apply and thickly spread eye makeup cosmetics, so the surface should have a surface condition suitable for applying cosmetics. is necessary. Therefore, after the foam is taken out from the mold, it may be polished with a buff or the like or treated with a grinder, if necessary.

Furthermore, according to the inventor's experiments, depending on the type of cosmetics, the surface of the foamed sponge layer 2 of the cosmetic brush of the present invention may be roughened by grinding, or may be treated with flocking or granulation. This makes the cosmetics more effective and makes it easier to apply makeup.

FIG. 3 shows another embodiment of a cosmetic applicator manufactured by the method described above.

In this embodiment, the bundled fibers 1 protrude at one end of the foamed sponge layer 2, and do not protrude at the other end 2b. In this embodiment, the end 2b of the foamed sponge layer from which the fiber bundle 1 does not protrude can be used for applying eye shadow, etc., and since the fiber bundle 1 does not protrude from this end 2b, delicate finishing can also be performed. easy.

As shown in FIG. 4, the cosmetic brush manufactured by the method of the present invention can also be used as an application part of a cosmetic applicator with a handle 10 attached, in the same way as a conventional cosmetic brush. . In this case as well, since the outer side of the application part is the foamed sponge layer 2, it is elastic and can be attached to the handle part without caulking the metal piece.

〔Effect of the invention〕

According to the method of the present invention, there is no need to attach the handle to the handle as seen in conventional cosmetic applicators, and the cost of raw materials is low. Therefore, the manufacturing of cosmetic applicators is simple and efficient. It can be produced and manufactured at low cost.

Moreover, in the cosmetic applicator manufactured by the method of the present invention, the focused fiber body is used as the application part, and
The foamed sponge layer can be used as the application part, and two types of application parts can be formed in one makeup brush. Therefore, according to the method of the present invention, it is possible to provide a makeup brush that has the functions of a lipstick brush and an eye makeup brush in the same brush, and is extremely convenient for applying cosmetics.

Further, according to the present invention, it is possible to provide a cosmetic brush that is fully equipped with the application function of currently used cosmetic brushes, can be manufactured at extremely low cost, and is disposable.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of a makeup brush manufactured by the method of the present invention, FIG. 2 is a sectional view taken along the line B-B in FIG. 1, and FIG. FIG. 4 is a front view of another embodiment of a cosmetic brush manufactured by the method of the present invention. 1... Focused fiber body, 2... Foamed sponge layer, 3
...Tip of the fiber bundle, 4... Corner of the foamed sponge layer, 5... Surface of the foamed sponge layer, 6...
Adhesive layer, 7... joint portion.

Claims (1)

[Claims] 1. Molding a cylindrical foamed sponge body with a doughnut-shaped cross section, passing the bundled fiber body into the hole of the donut-shaped cylindrical foamed sponge body, cutting this cylindrical foamed sponge body to an appropriate size, and molding the cylindrical foamed sponge body. 1. A method for producing a cosmetic brush, which comprises peeling off both or one of the ends of a foamed sponge body over an arbitrary length to expose a bundled fiber body.