JPH057510A - Brush with antibacterial action - Google Patents

Abstract

PURPOSE:To always use the title brush in a sanitary condition by having the effect of preventing the propagation of contaminated bacteria, by a method wherein in a mold material of at least either of a bristle-implanting part and bristles, an antibacterial agent and fungicidal agent specified are contained in the definite ratio. CONSTITUTION:The title brush consists of a handle part 1, a bristle-implanting part 2 extending therefrom and bristles 3 rising from the bristle-implanting part 2, and is molded of a mold material in which at least either of the bristle- implanting part 2 and the bristles 3 comprises a synthetic resin as the major constituent. The mold material is composed so that a compound of 0.3 to 5.0 pts.wt., which is shown by a structural formular I, and a B component of 0.3-5.0 pts.wt. are contained based on the synthetic resin of 100 pts.wt. In the structural formula I, R1 is hydrogen or -NHCONH(CH2)3CH, group, and R2 is the grip shown by a structural formula II or -NHCOOH3. At this point, the B component consists of at least either of pyridine compound and hydroxydiphenyl ether halide, and as the synthetic resin, ABS resin or the like is given.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antibacterial brush having antibacterial, antifungal and deodorant effects.

[0002]

2. Description of the Related Art Generally, as shown in FIG. 1, a hairbrush is composed of a handle portion 1, a bristle portion 2 extending from the handle portion 1, and a brush bristle 3 planted in the bristle portion 2. Used for brushing hair. However, since scalp oil, dandruff, dust, and the like are attached to the hair, they are attached to the brush bristles 3 and the flocked portion 2 by brushing. If the hairbrush is left in this state, bacteria in the air propagate due to the adhered scalp oil and the like, resulting in an unsanitary condition such that the hairbrush is moldy or has a bad odor. For this reason, conventionally, after using the hairbrush, it has been practiced to clean and disinfect with hot water to remove dirt such as scalp oil and the like that has adhered and keep the hairbrush in a hygienic state.

[0003]

However, it is troublesome to wash the hairbrush every time it is used, and even if it is washed, it is impossible to completely remove fine dirt and the like attached to the hairbrush. If the hairbrush is not completely dried after being washed, the water adhering to the hairbrush may spoil due to propagation of various bacteria and give off a bad odor. On the other hand, with hot water disinfection, it is possible to temporarily bring it into a sanitary state, but this state cannot be maintained, and frequent hot water disinfection is required. However, if hot water sterilization is frequently performed, an inconvenient situation occurs in which the brush bristles 3 and the bristles 2 are deteriorated. In particular, as shown in FIG. 2, when the flocked part 2 is made of a rubber material, the flocked part 2 is cracked by several hot water sterilizations, which makes it difficult to maintain a hygienic condition. Become.

The present invention has been made in view of the above circumstances, and has an antibacterial brush which is difficult to attract germs in the air, has an action of suppressing the proliferation of germs, and can be always used in a clean state. The purpose is to provide.

[0005]

In order to achieve the above object, the antibacterial brush of the present invention is a brush having a handle portion, a bristle portion extending therefrom, and a brush bristle rising from the bristle portion. At least one of the part and the brush bristles is molded with a molding material containing a synthetic resin as a main component, and the molding material has the following (A) with respect to 100 parts by weight of the synthetic resin.
0.3 to 5.0 parts by weight of the component, and the following component (B) is 0.
3 to 5.0 parts by weight is contained. (A) A compound represented by the following general formula (1).

[Chemical 2] (B) At least one of a pyridine-based compound and a halogen-based hydroxydiphenyl ether compound.

[0006]

In other words, the inventors of the present invention conducted a series of studies in order to obtain a brush in which contaminants in the air do not easily adhere and which suppresses the proliferation of contaminants. As a result, when the above-mentioned component (A), which is a fungicide, and component (B), which is an antibacterial agent, are blended with a synthetic resin, which is a molding material for brushes, at a predetermined ratio,
The inventors have found that it is possible to prevent miscellaneous bacteria in the air from coming close to them and to suppress the growth of miscellaneous bacteria adhered to the brush, and arrived at the present invention.

In the antibacterial brush of the present invention, at least one of the bristles and the brush bristles together with the molding material containing a synthetic resin as a main component has the above-mentioned component (A) having antifungal properties and the above-mentioned component (B) having antibacterial properties. It is molded using and.

The synthetic resin used as the molding material is not particularly limited, and examples thereof include acrylonitrile-butadiene-styrene copolymer (ABS), a thermoplastic elastomer, nylon and the like which are usually used for molding a brush substrate. .

Specific examples of the component (A) used together with the synthetic resin as the molding material are as follows.

2- (4-thiazolyl) benzimidazole,

[Chemical 3]

2-carbomethoxyamino benzimidazole,

[Chemical 4]

Methyl-1-butylcarbamoyl-2-benzimidazole-carbamate

[Chemical 5] Is mentioned.

The compounding amount of the above component (A) with respect to 100 parts by weight of synthetic resin (hereinafter abbreviated as "part") is 0.3-5.
It is in the range of 0 part, preferably in the range of 0.5 to 3.0 parts. When the amount of the component (A) blended exceeds 5.0 parts, problems such as skin irritation occur, molding becomes difficult, and it becomes difficult to maintain the properties of the synthetic resin. On the contrary, if the blending amount is less than 0.3 part, the antifungal effect becomes difficult to appear.

The component (B) used together with the synthetic resin as the molding material is at least one of a pyridine compound and a halogenated hydroxydiphenyl ether compound, and the compounding amount thereof is 100 parts of the synthetic resin.
It is in the range of 0.3 to 5.0 parts, preferably in the range of 0.5 to 3.0 parts. When the amount of the component (B) compounded exceeds 5.0 parts, it becomes difficult to mold the brush substrate and it becomes difficult to maintain the properties of the synthetic resin. On the contrary, the blending amount is 0.
If it is less than 3 parts, the antibacterial property is significantly lowered.

A specific example of such a pyridine compound is bis (2-pyridylthio-1-oxide).
Examples include zinc.

Specific examples of such halogenated hydroxydiphenyl ether compound include:

2,4,4'-trichloro-2'-hydroxydiphenyl ether

[Chemical 6] Is mentioned.

The antibacterial brush of the present invention uses a molding material obtained by mixing the above-mentioned synthetic resin with the above-mentioned components (A) and (B) at the above-mentioned predetermined ratios, and either or both of the brush-implanted portion and the brush-bristle. Is obtained by a conventionally known molding method.

The antibacterial brush obtained as described above is
At least one or both of the bristles and / or the bristles contain the above-mentioned component (A) which is an antifungal agent and the above-mentioned component (B) which is an antibacterial agent. Therefore, bacteria in the air are not easily attracted, mold is not generated, and a bad odor is not generated, and it can always be used in a hygienic state.
Further, since the component (A) and the component (B) are kneaded, the antibacterial effect and antifungal effect are exhibited over a long period of time.

Even if one or both of the bristles and the brush bristles are molded with a molding material containing the above components (A) and (B), the antibacterial effect is exhibited, but the handle portion is made of the above molding material. Then, the antibacterial effect becomes higher.

[0021]

As described above, in the antibacterial brush of the present invention, the specific antibacterial agent and antifungal agent are contained in the molding material of at least one of the flocked portion and the bristle in a predetermined ratio. Therefore, this antibacterial brush does not attract germs and has an effect of preventing the proliferation of germs, so it does not cause mold or odor even if it is not washed every time it is used, and it is always in a hygienic condition. Can be used in. Further, since a specific antibacterial agent and antifungal agent are kneaded, the antibacterial effect and antifungal effect are exhibited over a long period of time. Furthermore, since the antibacterial agent and antifungal agent used in the present invention are safe for the human body, they can be used safely.

Next, examples will be described together with comparative examples.

[0023]

Examples 1 to 4 0.5 part of bis (2-pyridylthio-1-oxide) zinc (hereinafter abbreviated as "ZPT") was added to 100 parts of the synthetic resin shown in Table 1 below, and 2 parts were further added.
-(4-thiazolyl) benzimidazole (hereinafter "TB
Z) was abbreviated as 0.5 part to prepare a molding material.
Using this molding material, brush bristles having a diameter shown in Table 1 below were prepared by a conventionally known method. This bristles
A hairbrush as shown in FIG. 1 was produced by implanting it into the bristles of a brush substrate produced by a conventionally known method using the molding materials shown in Table 1 below.

[0024]

Fifth Embodiment ZPT is added to 100 parts of synthetic rubber.
A molding material was prepared by blending 5 parts of TBZ and 0.5 part of TBZ. Using this molding material, a flocked portion was produced by a conventionally known method, and using this, a hair brush shown in FIG. 2 was produced. The brush bristles 3 were made of nylon, and the brush base 4 was made of ABS resin.

[0025]

[Examples 6 to 9] Instead of the ZPT of Examples 1 to 4,
A hairbrush as shown in FIG. 1 was prepared in the same manner as in Examples 1 to 4 except that 2,4,4′-trichloro-2′-hydroxydiphenyl ether (hereinafter abbreviated as “triclosan”) was used.

[0026]

[Embodiment 10] FIG. 2 is the same as Embodiment 5 except that triclosan is used instead of ZPT in Embodiment 5.
A hairbrush as shown in was prepared.

[0027]

[Comparative Examples 1 to 5] Except that TBZ and ZPT were not mixed,
Hair brushes were produced in the same manner as in Examples 1 to 5 above.

[0028]

[Table 1]

The hairbrushes of Examples 1 to 10 and Comparative Examples 1 to 5 thus obtained were treated with culture solution A (1000 parts by weight of purified water (hereinafter abbreviated as "part"), peptone 10).
Part, beef extract 5 parts, sodium chloride 5 parts are blended,
4.1 × 10 ⁵ bacteria / ml are dispersed),
The portion of the brush substrate on which the brush bristles were planted was immersed.
Then, the hairbrush was taken out of the liquid, lightly drained, immersed in sterile physiological saline B (concentration 0.85%), and the number of bacteria adhering to the hairbrush was measured (this was 1 hairbrush before culturing). And the number of bacteria per). The result is
The results are shown in Tables 2 and 3 below.

Further, the above-obtained hairbrushes of Examples and Comparative Examples were immersed in the above culture medium A. Then, after removing the hairbrush from the liquid, put it in a beaker with a volume of 1 liter, put it in a desiccator containing a small amount of water with the opening covered, incubate it at 28 ± 2 ° C for 24 hours, and then putrefy it. The odor generation state and the presence or absence of mold were evaluated. Then, the number of bacteria attached to the hairbrush is measured by immersing it in sterile physiological saline B (this is defined as the number of bacteria per hairbrush after culturing). Based on this, the antibacterial effect was evaluated. The results are shown in Tables 2 and 3 below.

It should be noted that those having a strong rotten odor were evaluated as x, those having a slight rotten odor were evaluated as Δ, and those having no rotten odor were evaluated as o. In addition, the number of bacteria can be measured by the conventionally known PGY.
Medium (purified water 1000 parts, agar 15 parts, glucose 10
Part, peptone 10 parts, yeast powder 10 parts) pour method. And, if the antibacterial effect is remarkable, ○,
When the antibacterial effect was not so remarkable, it was evaluated as △, and when the antibacterial effect was not observed, it was evaluated as ×.

[0032]

[Table 2]

[0033]

[Table 3]

From the results shown in Tables 2 and 3, the products of Examples 1 to 10 in which the antibacterial agent and the antifungal agent were blended were found to have almost no putrefactive odor and mold, and to have an excellent antibacterial effect. It was On the other hand, it can be seen that in each of Comparative Examples 1 to 5 containing no antibacterial agent, bacteria are apt to adhere to them and putrefactive odor and mold easily grow.

[0035]

[Examples 11 to 16] TBZ to 100 parts of ABS resin
Then, ZPT was blended as shown in Table 4 below to prepare a molding material, and a hairbrush in which brush bristles and a brush base were integrally molded with this molding material was produced by a conventionally known method.

[0036]

[Table 4]

The hairbrush of the example product thus obtained was immersed in the culture solution A at the portion of the brush substrate. Then, the hairbrush was taken out of the liquid, lightly drained, dipped in the sterilized physiological saline B to measure the number of bacteria adhering to the hairbrush (this is defined as the number of bacteria per hairbrush before culturing). ). The results are shown in Table 5 below.

Further, the hairbrushes of Examples obtained as described above were immersed in the culture medium A.
Then, after taking out the hairbrush from the liquid in the same manner as in Examples 1 to 10 above, the hairbrush was placed in a beaker having a volume of 1 liter and the opening was covered with a desiccator containing a small amount of water. After culturing at ℃ for 24 hours,
The state of spoilage and the presence or absence of mold were evaluated. Then, the number of bacteria attached to the hairbrush is measured by immersing it in sterile physiological saline B (this is defined as the number of bacteria per hairbrush after culturing). Based on this, the antibacterial effect was evaluated. The results are shown in Table 5 below.

The number of bacteria is measured by the method described in Example 1 above.
As in Nos. 10 to 10, the conventional PGY medium pour method was used. In addition, the rotten odor and the antibacterial effect were evaluated in the same manner as in Examples 1 to 10 above.

[0040]

[Table 5]

From the results of Table 5 above, TBZ and ZPT
The hairbrush of Example 11 containing a small amount of the above-mentioned bacterium easily adheres to bacteria and easily proliferates. Also, the hairbrushes of Examples 12 and 13 have remarkable effects of suppressing adhesion of bacteria and suppressing growth of bacteria. I didn't have it.
On the other hand, Example 14 with a large blending amount of TBZ and ZPT
The 16 hairbrushes had a remarkable effect in suppressing bacterial adhesion and preventing bacterial growth.

[0042]

Examples 17 to 22 For 100 parts of ABS resin, T
BZ and triclosan were blended as shown in Table 6 below to prepare a molding material, and a hairbrush in which brush bristles and a brush base were integrally molded with this molding material was produced by a conventionally known method.

[0043]

[Table 6]

The hairbrush of the example product thus obtained was immersed in the culture solution A at the portion of the brush substrate. Then, the hairbrush was taken out of the liquid, lightly drained, dipped in the sterilized physiological saline B to measure the number of bacteria adhering to the hairbrush (this is defined as the number of bacteria per hairbrush before culturing). ). The results are shown in Table 7 below.

The hairbrushes of the examples obtained as described above were immersed in the culture medium A.
Then, after removing the hairbrush from the liquid in the same manner as in Examples 1 to 10, the hairbrush was placed in a beaker having a volume of 1 liter and the opening was covered with a desiccator containing a small amount of water. After culturing at ℃ for 24 hours,
The state of spoilage and the presence or absence of mold were evaluated. Then, the number of bacteria attached to the hairbrush is measured by immersing it in sterile physiological saline B (this is defined as the number of bacteria per hairbrush after culturing). Based on this, the antibacterial effect was evaluated. The results are shown in Table 7 below.

The measurement of the number of bacteria was carried out by the method described in Example 1 above.
As in the case of No. 5 to No. 5, the conventional PGY medium pour method was used. In addition, the rotten odor and the antibacterial effect were evaluated in the same manner as in Examples 1 to 10 above.

[0047]

[Table 7]

From the results shown in Table 7 above, in the hairbrush of Example 17 in which the blending amounts of TBZ and triclosan were small, bacteria were likely to adhere and bacteria easily proliferated, and
The hairbrushes of Examples 18 and 19 had no significant effect on the inhibition of bacterial adherence and the inhibition of bacterial growth. On the other hand, the hairbrushes of Examples 20 to 22 containing a large amount of TBZ and triclosan had a remarkable effect in suppressing the attachment of bacteria and preventing the growth of bacteria.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a hair brush.

FIG. 2 is a configuration diagram of a hairbrush.

[Explanation of sign]

1 handle 2 Flocking part 3 brush hair

Continued front page    (72) Inventor Norihiko Sakurai             3-5-15 Minamimachi, Odawara-shi, Kanagawa 202 (72) Inventor Tomoko Hoshino             616 Kamomiya, Odawara City, Kanagawa Prefecture (72) Inventor Naoto Masato             3-17-16, Naka-Aoki, Kawaguchi City, Saitama Prefecture (72) Inventor Sumiko Kimura             3-4-8 Azaleagaoka, Akishima-shi, Tokyo             905 (72) Inventor Shuji Izumo             385 Makinouchi, Sakurai City, Nara Prefecture (72) Inventor Michio Tsugo             Osaka Prefecture Osaka City Joto Ward Furuichi 3-15-10

Claims (2)

[Claims] 1. A brush having a handle portion, a bristle portion extending therefrom, and a brush bristle rising from the bristle portion, wherein at least one of the bristle portion and the bristle is made of a molding material containing a synthetic resin as a main component. Then, the above-mentioned molding material contains the following component (A) in an amount of 0.3 to 100 parts by weight of the synthetic resin.
An antibacterial brush containing 5.0 parts by weight and 0.3 to 5.0 parts by weight of the following component (B). (A) A compound represented by the following general formula (1). [Chemical 1] (B) At least one of a pyridine-based compound and a halogen-based hydroxydiphenyl ether compound. 2. The antibacterial brush according to claim 1, wherein at least one of the bristles and the brush bristles and the handle are formed of a molding material containing the component (A) and the component (B).