KR101176036B1 - The composition of toothbrush and toothbrush manufactured thereby - Google Patents

Abstract

The present invention relates to bristle compositions, bristles and toothbrushes using the same, polypropylene, polyester, polyethylene, polystyrene, polyethylene terephthalate, polybutylene terephthalate, polyvinyl chloride, polycarbonate, polyphenylene oxide, polyurethane, A resin composition composed of acrylonitrile, silicon, any one or a combination of two or more of them contains a porous silica composite powder containing plum powder, walnut (leaf and shell) powder, lettuce powder and silver (Ag). do.

Description

Bristle composition and bristle using the same {THE COMPOSITION OF TOOTHBRUSH AND TOOTHBRUSH MANUFACTURED THEREBY}

The present invention relates to bristle compositions comprising polypropylene, polyester, polyethylene, polystyrene, polyethylene terephthalite, polybutylene terephthalate, polyvinyl chloride, polycarbonate, polyphenylene oxide, polyurethane, acrylonitrile, silicone Resin composition for bristles containing a porous silica composite powder containing plum powder, walnut tree (leaves and bark) powder, lettuce powder and silver (Ag) in a synthetic resin composed of any one or two or more combinations and bristles using the same Invention.

In general, bristles are mainly made of nylon (nylon 612), and some polybutyl terephthalate (PBT) is also used. However, until now, a resin composition for bristles has not been developed.

This is because it is recognized that the damage of the gums, the health of the teeth and the life of the bristles are determined by the processing state of the bristles, that is, the degree of rounding of the bristles, rather than the material of the bristles.

However, recently, research results in which the material of the bristles have a great influence on the health of the teeth and the damage of the gums have been published, and the interest in the materials of the bristles has increased.

Korean Patent No. 352542 discloses a technique for bristle mixed with charcoal powder for the purpose of antibacterial, humidity control, deodorization and purification. The above technique is only one example of a patent relating to the material of the bristles for the purpose of antibacterial activity and the like.

Accordingly, the inventors of the present invention any one or two of low polypropylene, polyester, polyethylene, polystyrene, polyethylene terephthalate, polybutylene terephthalate, polyvinyl chloride, polycarbonate, polyphenylene oxide, polyurethane, acrylonitrile, silicone It relates to a bristle resin composition containing a porous silica composite powder containing plum powder, walnut tree bark powder, lettuce powder and silver (Ag) in a synthetic resin composed of the above combination, the bristles using the resin composition is antibacterial In addition to preventing oral inflammation by activity, in addition to providing a bristle composition excellent in the prevention of tooth decay, tooth whitening, and a method for producing the bristles using these.

In order to achieve the above object, the present inventors have studied for a long time, and the plums are rich in various vitamins and minerals, and especially, they contain large amounts of picric acid and canine acid, which are excellent in detoxification and sterilization. Glon has excellent bactericidal action. Lettuce is the most representative food for tooth whitening. The fiber component of lettuce is a kind of self-cleaning action to remove plaque attached to teeth, and it has silver whitening effect. It is well known that the containing porous silica composite is effective in antimicrobial activity.

Accordingly, the present inventors have developed a bristle synthetic resin composition composed of any one or two or more of these components and polypropylene, polyester, polystyrene and silicone.

Synthetic resin composition for brush head of the present invention by using an additive of the natural ingredient is harmless to the human body and has an excellent effect on the prevention of periodontal disease and teeth whitening.

Synthetic resin composition for bristles according to the present invention 3 to 5 parts by weight of plum powder, walnut tree (leaves and shells) based on 100 parts by weight of synthetic resin composed of any one or two or more of polypropylene, polyester, polystyrene and silicone. 2 to 6 parts by weight of powder, 1-3 parts by weight of lettuce powder, and 0.5 to 5 parts by weight of nano silver (Ag) porous silica composite powder.

When the composition ratio of the plum powder in the above components exceeds 5 parts by weight, there is a concern that the tooth may be cyring due to weak acidity, and the sterilization and detoxification ability of less than 3 parts by weight may be deteriorated.

When the composition ratio of the walnut tree bark powder of the above components exceeds 6 parts by weight, there is a fear that the elasticity of the bristles are lowered, and when less than 2 parts by weight, the sterilization power may be reduced.

In the case of the above-mentioned ingredients, the lettuce powder may contain less than 1 part by weight of the tooth whitening effect, and if it exceeds 3 parts by weight, the bristles may have poor elasticity.

In addition, the antimicrobial agent used in the present invention is a nano silver (Ag) porous silica composite powder consisting of 0.1 to 5% by weight of nano silver (Ag) and 95 to 99.9% by weight of porous silica, and when the added amount is less than 0.5 parts by weight, antibacterial effect It is insufficient, and if it exceeds 5 parts by weight, it will be a factor of the increase of manufacturing cost.

Although an Example is given to the following and this invention is demonstrated to it in more detail, this invention is not limited to these Examples.

≪ Example 1 >

93% by weight of polypropylene resin of 1,300 degree of polymerization, 2% by weight of plum powder, 2% by weight of walnut powder, 2% by weight of lettuce powder, and 1% by weight of nano silver (Ag) porous silica composite powder The composition was prepared.

(Unit: wt%) Example 2 Example 3 Example 4 Example 5 Polypropylene 47 47 Polyester 47 47 silicon 47 42 47 Polystyrene 53 Plum powder 2 2 2 2 Walnut powder 2 2 2 2 Lettuce powder One One One 0 Nano silver (Ag) One One 0 One

The bristles prepared with the resin compositions of Examples 1, 2, 3, 4, and 5 described above, and nylon bristles (control sample 1) and PBT bristle (control sample 2) generally available on the market were prepared.

〈Antibacterial test〉

Inoculate the test strain to the samples of Examples 1, 2, 3, 4 and 5 and the control samples 1 and 2 and incubated for 1 week, and then observed the growth of the cells for each sample to minimize the growth of bacteria Was determined. The strain used in the test was facultative anaerobic bacteria.

 sample MIC (ppm) sample MIC (ppm) Example 1  11 Example 4  22 Example 2  13 Control Sample 1  35 Example 3  12 Control Sample 2  42

As can be seen from the MIC measurement results of [Table 2] for the facultative anaerobic bacteria of each sample, the bristles of Examples 1, 2 and 3 of the present invention were excellent without any significant difference in the antimicrobial activity and nano silver (Ag) porous silica composites. The bristles of Example 4, which did not contain powder, were found to have lower antimicrobial activity compared to Examples 1, 2 and 3, but were superior to the control samples 1 and 2.

〈Tooth Whitening Experiment〉

In order to measure the tooth whitening effect on the present invention, 30 adult males were selected as 5 sets of samples, and the brush heads of Examples 1, 2, 5, Control Sample 1 and Control Sample 2 were used for each group. After brushing teeth three times a day, the result of measuring tooth whitening at the point of two weeks passed is as shown in [Table 3 (result of tooth whitening effect after two weeks)].

Whitening effect Whitening effect (same) Whitening effect (bad) Brush head of Example 1 5 (83.3%) 1 (16.7%) 0 (0%) Bristle of Example 2 5 (83.3%) 1 (16.7%) 0 (0%) Brush head of Example 5 3 (50.0%) 3 (50.0%) 0 (0%) Brush head of control sample 1 0 (0%) 5 (83.3%) 1 (16.7%) Brush head of control sample 2 0 (0%) 5 (83.3%) 1 (16.7%)

As can be seen in Table 3 above, the bristles containing the resin compositions of Examples 1 and 2 of the present invention are superior to the bristles of the control samples 1 and 2, which are common general bristles. And it was confirmed that the bristles of the composition of Example 5 of the present invention, which does not contain lettuce powder, have a whitening effect as compared to Examples 1 and 2 bristles. According to the above experimental results, the lettuce powder was found to be excellent in the whitening effect.

Claims (4)

3 to 5 parts by weight of plum powder, 2 to 6 parts by weight of walnut tree, 1 to 3 parts by weight of lettuce powder, based on 100 parts by weight of synthetic resin composed of any one or two or more of polypropylene, polyester, polystyrene and silicone And 0.5 to 5 parts by weight of nano silver (Ag) porous silica composite powder. The method of claim 1,
Synthetic resin is a resin composition for bristles, characterized in that a combination of polypropylene and silicone 3 to 5 parts by weight of plum powder, 2 to 6 parts by weight of walnut tree powder, 1 to 3 parts by weight of lettuce powder, based on 100 parts by weight of synthetic resin composed of any one or two or more of polypropylene, polyester, polystyrene and silicone And brush heads formed of a resin composition containing 0.5 to 5 parts by weight of nano silver (Ag) porous silica composite powder. Toothbrush having a bristle of claim 3