JPH04361702A - Brush - Google Patents

Abstract

PURPOSE:To provide a sanitary brush on which fungi, bacteria, etc., will not easily propagate, by making the naps of the brush from plastics, and allowing each nap at least in its facial layer to contain a dissoluble glass containing Ag ions, from which Ag ions elude little by little. CONSTITUTION:Naps of a brush concerned are formed from a resin material 3 specifically prepared therefore, in which a dissoluble glass 2 containing Ag ions is included. This glass shall assume the form of particulates of particle size under 200mum, preferably under 50mum. Exceeding 200mum hinders uniform dispersing in the material used in the shaping process. The content shall preferably lie within the extent 0.1-10wt.%. Below 0.1% leads to insufficient anti-bacterial effect to be exerted by the Ag ions, while over 10% makes it difficult to include in the material for shaping.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to body brushes, hairbrushes, toothbrushes, etc. whose bristles are made of plastic.
The present invention relates to brushes such as various cleaning brushes, scrubbers, and various cleaning brushes.

0002

[Prior art] Body brushes, hair brushes, toothbrushes,
BACKGROUND OF THE INVENTION It is well known that brushes used for various purposes, such as various cleaning brushes, scrubbing brushes, and various cleaning brushes, have bristles made of plastic. Plastic bristle brushes are extremely inexpensive compared to those whose bristles are made of animal hair, plant fibers, etc., and can be easily made into the desired shape and elasticity depending on the purpose of use. It is easy to manufacture and has excellent safety and durability.

0003

[Problem to be Solved by the Invention] However, plastic bristle brushes tend to have dust, grime, germs, and dirt attached to their bristles, and if they are left unattended after use, they may not be thoroughly cleaned. Without it, mold and bacteria can easily grow on the hair. This is extremely unsanitary, and once the mold has grown on the bristles of the brush, it cannot be completely removed even after cleaning with a special detergent, and there is dirt that cannot be removed, especially at the base of the bristles. Easy to remain.

[0004] For this reason, although plastic bristle brushes have excellent durability, they are often discarded after a relatively short period of time. SUMMARY OF THE INVENTION In view of the above-mentioned problems, it is an object of the present invention to provide a brush that is improved in terms of hygiene and is resistant to the propagation of mold, sterilization, and the like.

[0005]

[Means for Solving the Problems] According to the present invention, the bristles are made of plastic, and a silver ion-containing solution capable of gradually eluting silver ions to at least the surface layer of the bristles is provided. This is achieved by means of a brush which is characterized by containing synthetic glass. In the present invention, silver ion-containing soluble glass that can elute silver ions at a constant rate is used as an antibacterial agent. Meltable glass is a general term for glasses whose composition has been adjusted in consideration of the physical and chemical properties of the glass so as to have a controlled melting rate, and is already known in itself. Therefore, in a silver ion-containing soluble glass to which a silver compound has been added, silver ions can be eluted at a fixed rate over any period of time from several hours to several years. The eluted silver ions then exert an antibacterial effect against mold and bacteria.

As schematically shown in FIG. 1, the bristles of the brush are composed of a resin material 3 for forming bristles in which soluble glass 2 containing silver ions is mixed. In the present invention, such silver ion-containing soluble glass is
It is contained in the brush bristle-forming resin material as fine particles with a size of 50 μm or less, preferably 50 μm or less. Here, the particle size is 2
If it exceeds 00 μm, it will not be uniformly dispersed in the forming material. Moreover, its content is preferably 0.1% to 10% by weight. If it is less than 0.1%, the antibacterial effect of silver ions will be insufficient, and if it is more than 10% by weight,
It becomes difficult to mix into the forming material, which is not preferable.

The resin material constituting the bristles of the brush according to the present invention is preferably a thermoplastic resin such as polyolefin, polyester, or polyamide, but is not particularly limited. Regarding mixing silver ion-containing soluble glass with thermoplastic resin, there are two methods: mixing at or just before molding;
Alternatively, a method may be applied in which silver ion-containing soluble glass is mixed into a thermoplastic resin in advance to form a master batch.

In order to obtain an effective sterilization effect in the bristles of the brush according to the present invention, the proportion of silver ion-containing soluble glass in the resin material should be 0.1 to 10% by weight,
Preferably it is about 1 to 6% by weight.

[0009]

[Function] According to the above structure, soluble glass containing silver ions is present at least in the surface layer of the bristles of the brush,
Its antibacterial action prevents mold, sterilization, etc. from growing on the surface layer of the hair. Silver ion-containing soluble glass is an inorganic substance, so even if it comes into contact with the human body, it only produces an antibacterial effect, and is completely harmless to the human body.Moreover, it does not dissipate and has a semi-permanent antibacterial effect. produce an effect.

0010

【Example】

[0011]

[Example 1] Ion Pure W is a silver ion-containing soluble glass that can elute silver ions at a constant rate.
Bristles for body brushes were made by mixing 3 parts by weight of Alli (manufactured by Ishizuka Glass Co., Ltd.) with 97 parts by weight of polypropylene during extrusion molding, and the bristles were implanted into a polypropylene handle to create the bristles as shown in Figure 3. We created a body brush with a general shape.

[0012] After using this body brush to wash the body, it was immersed in tap water and left for two months, and then the growth of mold on the bristles of the body brush was observed. was not recognized.

[0013]

[Example 2] Ion Pure WAlli (manufactured by Ishizuka Glass Co., Ltd.) was pulverized to an average particle size of 15 μm, and this was mixed into 3 parts by weight of polypropylene and 97 parts by weight during extrusion molding to produce bristles for a body brush. This was grafted onto a polypropylene handle to produce a body brush with a general shape as shown in FIG.

[0014] After using this body brush to wash the body, it was immersed in tap water and left for two months, and then the growth of mold on the bristles of the body brush was observed. was not recognized. Comparative Example 1 A body brush was manufactured using the same polypropylene bristles as in Examples 1 and 2, except that it did not contain Ion Pure WAlli.

This body brush was used for washing the body under the same conditions as in Examples 1 and 2, and then immersed in tap water.
After leaving it for two months, we observed the growth of mold on the bristles of the body brush, and the growth of black mold was observed with the naked eye.

[0016]

[Example 3] 3 parts by weight of Ion Pure WAlli (manufactured by Ishizuka Glass Co., Ltd.) was mixed into 97 parts by weight of polypropylene during extrusion molding to produce bristles for a toilet cleaning brush, and this was attached to a polypropylene handle. The bristles were implanted to produce a toilet cleaning brush having a general shape as shown in Fig. 4.

After this toilet cleaning brush was used for cleaning the toilet, it was immersed in tap water and left for two months. When the growth of mold on the bristles of the toilet cleaning brush was observed, it was found that it was not visible to the naked eye. No mold was observed.

[0018]

[Example 4] Ion Pure WAlli (manufactured by Ishizuka Glass Co., Ltd.) was pulverized to an average particle size of 15 μm, and 3 parts by weight of this was mixed into 17 parts by weight of polypropylene during extrusion molding to make bristles for toilet cleaning brushes. A toilet cleaning brush having a general shape as shown in FIG. 4 was manufactured by grafting the bristles onto a polypropylene handle.

After this toilet cleaning brush was used for cleaning the toilet, it was immersed in tap water and left for two months. When the growth of mold on the bristles of the toilet cleaning brush was observed, it was found that it was not visible to the naked eye. No mold was observed. Comparative Example 2 A toilet cleaning brush was manufactured using the same polypropylene bristles as in Examples 3 and 4, except that it did not contain Ion Pure WAlli.

After this toilet cleaning brush was used for cleaning the toilet under the same conditions as in Examples 3 and 4, it was immersed in tap water and left for two months. When the growth was observed, black mold was observed with the naked eye.

[0021]

[Example 5] 3 parts by weight of the aforementioned Ion Pure WAlli (manufactured by Ishizuka Glass Co., Ltd.) was mixed into 17 parts by weight of polypropylene during extrusion molding to produce bristles for scrubbers, which were then cut to a predetermined length. They were bundled together to produce a scrubber with a general shape as shown in Figure 5. After using this scrubbing brush to clean the bathroom, it was immersed in tap water and left for two months. When the bristles of the scrubbing brush were observed for mold growth, no mold growth was observed with the naked eye.

[0022]

[Example 6] Ion Pure WAlli (manufactured by Ishizuka Glass Co., Ltd.) was pulverized to an average particle size of 15 μm, and 3 parts by weight of this was mixed into 97 parts by weight of polypropylene during extrusion molding to produce bristles for scrubbers. This was cut to a predetermined length and bundled to produce a scrubber with a general shape as shown in FIG.

After using this scrubber to clean the bathroom, it was immersed in tap water and left for two months, and then the growth of mold on the bristles of the scrubber was observed, and no mold was observed with the naked eye. There wasn't. Comparative Example 3 A scrubbing brush was made using the same polypropylene bristles as in Examples 5 and 6, except that it did not contain Ion Pure WAlli.

[0024] After this scrubbing brush was used to clean the bathroom under the same conditions as in Examples 5 and 6, it was immersed in tap water and left for two months, and the growth of mold on the bristles of the scrubbing brush was observed. The appearance of black mold was observed with the naked eye. The results of the above-mentioned Examples and Comparative Examples indicate that the brush containing silver ion-containing soluble glass according to the present invention had an effective antibacterial effect compared to the conventional brush that did not contain the silver ion-containing soluble glass. There is.

The brush according to the present invention may be a hair brush, a toothbrush, a brush for cleaning bottles, etc., a brush for cleaning various types of brushes, or other brushes, in addition to the brushes of the above-mentioned embodiments.

[0026]

Effects of the Invention As is clear from the above description, in the brush according to the present invention, the antibacterial effect of the silver ion-containing soluble glass present at least in the surface layer of the bristles prevents mold and mildew from forming on the surface layer of the bristles. Since the proliferation of sterilization and the like is avoided, this brush is hygienic and does not require much effort in cleaning, allowing it to be used cleanly for a long period of time. Since the silver ion-containing soluble glass used in the bristles of the present invention is an inorganic substance, even if it comes into contact with the human body, it will only produce an antibacterial effect and will be completely harmless to the human body. can be,
Moreover, since it does not cause air to escape and produces a semi-permanent antibacterial effect, a safe antibacterial effect can be obtained semi-permanently.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view schematically showing a cross section of a resin material constituting the bristles of a brush according to the present invention.

FIG. 2 is a perspective view showing one embodiment in which the brush according to the present invention is applied to a body brush.

FIG. 3 is a perspective view showing one embodiment in which the brush according to the present invention is applied to a toilet cleaning brush.

FIG. 4 is a perspective view showing one embodiment in which the brush according to the present invention is applied to me.

[Explanation of symbols]

1... Soluble glass containing silver ions 3... Resin material for forming brush bristles

Claims (2)

[Claims] [Claim 1] The hair is made of plastic,
A brush characterized by containing silver ion-containing soluble glass that can gradually elute silver ions into at least the surface layer of the bristles. 2. The brush according to claim 1, wherein the plastic is a thermoplastic resin.