makeup brushes

Abstract

To provide a cosmetic brush capable of suppressing the propagation of bacteria. [Solution] The cosmetic brush 10 comprises a brush section 11 consisting of numerous brush bristles 11a and a support section 12 that supports the base end of the brush section 11, and the brush bristles 11a are made of resin fibers mixed with charcoal powder.

Description

[Technical Field]

[0001] The present invention relates to a cosmetic brush. [Background technology]

[0002] Conventionally, when applying makeup, various cosmetic brushes have been used to apply cosmetics such as foundation. Patent Document 1 describes a makeup brush whose bristles are made of resin fibers. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3229423 Summary of the Invention [Problem to be solved by the invention]

[0004] With use, makeup brushes become contaminated with residue from foundation and other cosmetics, as well as facial sebum and other dirt that can lead to the growth of bacteria on the brush, which can lead to rough skin and acne.

[0005] The present invention was made in consideration of the above circumstances, and aims to realize a cosmetic brush that can suppress the growth of various bacteria. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, the first invention is a cosmetic brush that includes a brush section made up of many bristles and a support section that supports the base end of the brush section, and the bristles are made of resin fibers that contain powder with antibacterial properties.

[0007] In the second invention, the powder having antibacterial properties in the first invention is charcoal powder.

[0008] The third invention is the same as the first invention, in which the amount of antibacterial powder mixed into the bristles is 0.8% by weight or less relative to the total weight of the material. [Effects of the Invention]

[0009] In this invention, the brush bristles are made of resin fibers containing antibacterial powder. Therefore, even if the bristles become dirty, they are less likely to grow bacteria. This invention makes it possible to realize a cosmetic brush that can suppress the growth of bacteria. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a side view of a cosmetic brush according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that the following embodiments are merely examples of the present invention and are not intended to limit the scope of the present invention, its applications, or its uses.

[0012] This embodiment is a cosmetic brush 10 in which resin bristles 11a are blended with antibacterial powder. As shown in Figure 1, the cosmetic brush 10 includes a brush section 11 made up of a large number of bristles 11a and a support section 12 that supports the base end of the brush section 11. Examples of cosmetic brushes 10 include foundation brushes, eye shadow brushes, blush brushes, lip brushes, eyeliner brushes, mascara brushes, and face wash brushes.

[0013] The support portion 12 is formed in a rod shape (cylindrical shape). One end of the support portion 12 forms a grip portion (handle) that is held by a user of the cosmetic brush 10. The base of a tuft of numerous bristles 11a is inserted into and fixed in a hole at the other end of the brush portion 11. The shape of the support portion 12 is not limited to a rod shape. The thickness of the bristles 11a is not particularly limited, but can be, for example, 0.05 mm or more and 0.1 mm or less.

[0014] In this embodiment, each brush bristles 11a of the brush part 11 is made of resin fiber mixed with antibacterial powder. The resin fiber material may be a synthetic resin such as polybutylene terephthalate (PBT). Charcoal powder may be used as the antibacterial powder. Examples of charcoal powder include bamboo charcoal powder obtained by carbonizing bamboo at high temperatures. Regarding the particle size of the antibacterial powder, powder that has passed through a sieve with 1000 or more meshes (e.g., a 2000-mesh sieve) may be used.

[0015] The brush bristles 11a are manufactured by carrying out the following steps: kneading a material made by blending resin with charcoal powder; drying the kneaded material; injection-molding the dried material into bristles at high temperature (drawing process); cutting the injection-molded bristles to the length of the brush bristles 11a; polishing the cut bristles; and dyeing the bristles.

[0016] In a prototype cosmetic brush, when the amount of charcoal powder mixed with the total amount of material for the bristles 11a was 1% by weight, the bristles 11a easily broke during the drawing process. On the other hand, when the amount of charcoal powder mixed with the total amount of material for the bristles 11a was 0.6% by weight, soft bristles 11a were obtained during the drawing process, and one side of the soft bristles 11a could be properly brushed. Therefore, the amount of charcoal powder mixed with the total amount of material for the bristles 11a is preferably 0.8% by weight or less, and more preferably 0.65% by weight or less.

[0017] In order to obtain the effect of inhibiting the proliferation of various bacteria in the brush part 11 of the cosmetic brush 10, it is preferable that the blend amount of charcoal powder is 0.1% by weight or more relative to the total amount of material of the brush bristles 11a.

[0018] [Effects of the embodiment] In this embodiment, the bristles 11a of the brush portion 11 are made of resin fibers mixed with charcoal powder. Charcoal powder has antibacterial properties. Therefore, even if dirt adheres to the bristles 11a, bacteria are less likely to grow. This embodiment makes it possible to realize a cosmetic brush that can inhibit the growth of bacteria.

[0019] In addition, in this embodiment, the amount of charcoal powder mixed with the total amount of material of the brush bristles 11a is 0.8% by weight or less, so it is possible to avoid the brush bristles 11a becoming more prone to breakage due to the addition of charcoal powder to the resin.

[0020] [Other embodiments] In the above-described embodiment, powder having antibacterial properties may be powdered green tea, bamboo powder, calcium hydroxide, etc. Two or more types of powder having antibacterial properties may be blended. [Industrial Applicability]

[0021] The present invention can be applied to cosmetic brushes and the like. [Explanation of symbols]

[0022] 10 makeup brushes 11 Brush section 11a brush bristles 12 Support part

Claims

1. a brush part consisting of a large number of brush bristles; a support portion that supports a base end side of the brush portion, The brush bristles are made of resin fibers containing antibacterial powder.

2. 2. The cosmetic brush according to claim 1, wherein the powder having antibacterial properties is charcoal powder.

3. 2. The cosmetic brush according to claim 1, wherein the amount of the antibacterial powder blended in the bristles is 0.8% by weight or less relative to the total weight of the material.

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