KR20170074685A - High functional toothbrush hairs using coral calcium and toothbrush using them - Google Patents
High functional toothbrush hairs using coral calcium and toothbrush using them Download PDFInfo
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- KR20170074685A KR20170074685A KR1020150184255A KR20150184255A KR20170074685A KR 20170074685 A KR20170074685 A KR 20170074685A KR 1020150184255 A KR1020150184255 A KR 1020150184255A KR 20150184255 A KR20150184255 A KR 20150184255A KR 20170074685 A KR20170074685 A KR 20170074685A
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- resin
- bristles
- nylon
- coral calcium
- coral
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
- A46D1/006—Antimicrobial, disinfectant bristles, handle, bristle-carrier or packaging
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/005—Arrangements of the bristles in the brush body where the brushing material is not made of bristles, e.g. sponge, rubber or paper
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
- A46B9/04—Arranged like in or for toothbrushes
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
- A46D1/02—Bristles details
- A46D1/0207—Bristles characterised by the choice of material, e.g. metal
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
- A46D1/04—Preparing bristles
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/10—For human or animal care
- A46B2200/1066—Toothbrush for cleaning the teeth or dentures
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Abstract
The present invention relates to a high functional bristle capable of securing excellent antibacterial properties using coral calcium as an environmentally friendly raw material, and a toothbrush using the same, which comprises a resin composition comprising at least one of a polyester resin and a nylon resin, And a coral calcium powder added in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the resin composition.
Description
The present invention relates to a bristles and a toothbrush using the brush bristles, and more particularly, to a brush bristle using a coral calcium which is capable of securing minerals, far-infrared rays, and excellent antibacterial property by using an environmentally friendly clean raw material, Toothbrush.
The toothbrush comprises a bristle, a head portion on which the bristles are put, and a handle portion connected to the head portion.
A toothbrush with this configuration should always be hygienic as an important tool for oral hygiene. Particularly, the bristles that are put on the head portion of the toothbrush must not only have a certain strength and elasticity, but also should be able to move easily along the tooth, which is the portion to be brushed.
However, since such bristles are usually stored in a toilet which is not always well-humid and ventilated, it is difficult to keep them in a hygienic condition, thereby causing diseases due to various bacterial propagation.
In recent years, a method of chemically disinfecting a toothbrush or disinfecting it with ultraviolet rays has been developed. However, due to complicated procedures such as disinfecting the toothbrush or disinfecting it with ultraviolet rays, .
In addition, sterilization apparatuses for suppressing the growth of bacteria in bristles have been developed. However, since the sterilization apparatus is very expensive, it is difficult to easily install the sterilization apparatus in a home, and power is continuously supplied Which is economically inefficient and difficult to carry.
In the conventional antibacterial toothbrush, antimicrobial materials are mixed with the resin of the bristles. In this case, the bristles have a problem of coloring due to their inherent hues. In the mixing or coating process, . In addition, when antibiotics are used, excessive use of antibiotics may cause side effects.
A related prior art is Korean Patent Laid-Open Publication No. 10-2003-0068758 (published on Aug. 25, 2003), which discloses a bristle manufacturing method and its toothbrush.
The present invention aims at solving all of the above problems.
It is another object of the present invention to provide a high-performance bristle using coral calcium which is capable of securing minerals, far-infrared rays, and excellent antibacterial property by using an environmental friendly clean raw material in the sea, and a toothbrush using the same.
In order to accomplish the objects of the present invention as described above and achieve the characteristic effects of the present invention described below, the characteristic structure of the present invention is as follows.
According to one aspect of the present invention, a resin composition comprising at least one of a polyester resin and a nylon resin, and a coral calcium powder added in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the resin composition The bristles having high functionality using coral calcium are provided.
According to another aspect of the present invention, there is provided a toothbrush comprising a resin composition comprising at least one of a polyester resin and a nylon resin, and a bristle containing a coral calcium powder added in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the resin composition Is provided.
The present invention provides antibacterial effect of antibacterial activity of 96% or more by addition of 0.01 to 10 parts by weight of coral calcium powder which is an environmentally friendly clean raw material to 100 parts by weight of resin composition to form bristles, It is excellent in removing effects.
In addition, the present invention is characterized in that coral calcium powder as an eco-friendly clean raw material is added in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the resin composition to form bristles, whereby formaldehyde deodorization as a cause of atopy, 92% It has a deodorization rate of 99% and an antimicrobial activity of 96% or more, and it is possible to combat fungi, E. coli and the like, so that it is effective for antibacterial and health.
In addition, since coral calcium powder as an environmentally friendly clean raw material is added in an amount of 0.05 to 10 parts by weight based on 100 parts by weight of the resin composition to form bristles, minerals such as calcium are eluted even after a long period of use and far infrared rays and antibacterial properties are maintained Antibacterial and healthful.
The high-performance bristles using the coral calcium of the present invention and the toothbrush using the coral calcium have a strength of 10 to 30 N, a elongation of 20 to 40%, and a bending recovery rate of 40 to 80% So that it is possible to minimize the damage of the gum.
1 is a photograph showing colonies formed by culturing Escherichia coli in a medium containing no coral calcium.
2 is a photograph showing colonies formed by culturing E. coli in a medium containing coral calcium according to an embodiment of the present invention.
FIG. 3 is a graph showing the amount of calcium detected in the high-performance bristles using coral calcium according to an embodiment of the present invention.
The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with an embodiment. It is also to be understood that the position or arrangement of the individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention.
A high-performance bristle using coral calcium according to an embodiment of the present invention includes a resin composition and a coral calcium powder.
First, the resin composition may include at least one of a polyester resin and a nylon resin. That is, the resin composition is polyester-based, but can be used independently, or nylon resin can be used independently. Alternatively, the resin composition may be used together with a polyester resin and a nylon resin. For example, the filament of the bristles formed by the resin composition may be formed into a double spinning structure by a core of polyester resin and a sheath of nylon resin.
At this time, the polyester resin serves to improve the strength and elasticity of the filament of the bristles. To this end, one or two selected from among polytrimethyleneterephthalate (PTT), polyethyleneterephthalate (PET), polyethylene naphthalate (PEN), and polybutyleneterephtalate (PBT) The above mixture may be used.
Such a polyester resin is preferably one having a number average molecular weight of 30,000 to 50,000 because it is more advantageous to improve the strength and elasticity of the bristles if a number average molecular weight in the above range is used.
The nylon resin, like the polyester resin, plays a role in improving the strength and elasticity of the filament of the bristles. As the nylon resin, nylon 6 resin, nylon 11 resin, nylon 12 resin, nylon 6,6 resin,
Also, the resin composition may contain at least one selected from the group consisting of polyamides, polylactic acids, polyacrylic acids, polyvinyl alcohols, polycarbonates, polyethylene oxides, polymethylmethacrylates, polystyrenes and their derivatives, poly lactic acid and polyglycolic acid polyglycolic acid and polyglycolic acid) may be used.
As a raw material of coral calcium powder, coral stone is an eco-friendly raw material which is formed only in the clean sea area. It is a clean natural minerals containing more than 70 kinds of minerals minerals that are beneficial to the body in addition to calcium. In addition, coral calcium has a far-infrared effect that promotes blood circulation and metabolism by activating the cells of the body by activating molecular activity, and is excellent in heavy metal and electromagnetic wave shielding effect.
In addition, coral calcium is the most powerful substance that can disinfect and disinfect all the pollutants, and to decompose and remove them chemically. However, coral calcium is strong in oxidizing power such as sterilization, disinfection, deodorization and decomposition, but it is not toxic or harmful to human body. In addition, coral calcium is directly involved in pollutants in air and water, reducing all pollutants to safe water and carbon dioxide. In other words, coral calcium has antifungal antimicrobial effect because it has excellent ability to inhibit the generation of various fungi and habitat of pathogens and bacteria. In addition, coral calcium emits far-infrared rays in the natural state without applying heat. It is a natural cleansing agent capable of eliminating fungi and E. coli with a deodorization rate of formaldehyde of 92%, an ammonia deodorization rate of 99%, and an antibacterial property of 96% It is a natural material with the best features that are not comparable to jade, ocher, elvan, and germanium which are widely used in the foundation.
In particular, coral calcium is a natural raw material and has a bactericidal power of 99.9% as a food additive. It removes common live bacteria, fungi, causative bacteria of food poisoning due to strong alkaline washing power generated when calcium oxide is dissolved in water, Effective sterilization and disinfection effect effectively sterilize various spoilage bacteria, food poisoning bacteria and viruses. Coral Calcium is also known to be effective against pathogenic Escherichia coli, fungi (bacteria), bacteria, Salmonella, Staphylococcus aureus, Equipment brio, Legionella, SARS, avian influenza, O-157, Campylobacterium, Pneumococcus, Vibrio, and so on.
At this time, it is preferable to use coral calcium as a result of calcining and pulverizing coral reefs formed in a clean sea area and coral stone formed of coral.
Therefore, as in the present invention, when the coral calcium powder is added to the resin composition at a predetermined ratio, the antibacterial and deodorizing effect of 96% or more can be exhibited. Specifically, it is preferable that the coral calcium powder is added in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the resin composition. When the amount of the calcium carbonate powder to be added is less than 0.01 part by weight based on 100 parts by weight of the resin composition, the amount of the calcium carbonate powder to be added is insignificant, so that it may be difficult to exhibit the above effects properly. On the contrary, when the amount of the coral calcium powder to be added is more than 10 parts by weight based on 100 parts by weight of the resin composition, it may act as a factor to lower the strength and bending recovery rate when applied to a bristle.
Meanwhile, the high-performance bristles using coral calcium according to the embodiment of the present invention may further contain additives in a range that does not impair physical properties. At this time, the additive may be an abrasive, a coupling agent or the like, which may be added alone or in combination. At this time, at least one selected from silicon dioxide, aluminum hydroxide, calcium carbonate, silica, bentonite clay, calcium phosphate, dicalcium phosphate, calcium phosphate dibasic and the like can be used as the abrasive, but the present invention is not limited thereto. Further, the coupling agent can be used to increase the interaction between the resin composition and the abrasive.
The high-performance bristles using coral calcium are produced by extruding a coral calcium powder into a resin composition, melt extruding the mixture, extruding the mixture using a nozzle, and then cooling the extruded yarn into water to produce a short fiber.
That is, the short fibers may be manufactured by using an extruder, and various extruders such as a twin screw extruder may be used as the extruder. At this time, the resin composition and the coral calcium powder are mixed as a melt in an extruder, and the resulting mixture is metered into a spin pack having a die plate. The mixture is filtered and extruded through the holes in the die plate to produce yarns of various shapes and sizes.
The cross-sectional shape of the yarn is determined by the shape of the die plate hole, and may have various shapes such as a circle, an ellipse, a rectangle, a triangle, and a regular polygon. Such a yarn may have a single radiating structure, or may be formed of a core-sheath double radiating structure having a core layer and a sheath layer. In such a core-sheath double radiating structure, it is preferable that the sheath layer is formed in a form that coaxially or concentrically surrounds the core layer.
In addition, the yarn can be produced by melt spinning. In the extrusion process, the yarn strands exit the die plate, solidify in a quench bath, and then are transported through a series of stretching rolls to stretch 3 to 8 times their original length. The yarn may be drawn at constant speed and time and wound on a winder such as a drum or a spool.
These yarns can be assembled into a single bundle of yarns of different hues, diameters, polymer compositions, lengths, and shapes to produce specific bristles.
The high-performance bristles using coral calcium according to the above-described embodiments of the present invention have a strength of 10 to 30 N, a elongation of 20 to 40%, and a bending recovery rate of 40 to 80%.
At this time, when the bending recovery rate of the bristles is less than 40%, the strength is less than 10N, and the elongation is more than 40%, the strength and elasticity of the bristles are too weak to ensure durability. Conversely, if the bending recovery rate of the bristles exceeds 80%, the strength exceeds 30N, and the elongation is less than 20%, the bristles are formed too stiffly, and the gums may be easily damaged, Problems can arise.
Therefore, the high-performance toothbrush manufactured by attaching the high-performance bristles according to the embodiment of the present invention to the head portion can be produced by adding the coral calcium powder as an environment-friendly clean raw material at a content ratio of 0.05 to 10 parts by weight to 100 parts by weight of the resin composition , The antifungal antimicrobial effect is excellent and not less than 96% of the antimicrobial activity can be secured, and the effect of removing deodorization is excellent.
In addition, the high-performance toothbrush using coral calcium according to the embodiment of the present invention has a strength of 10 to 30 N, a elongation of 20 to 40% and a flexural recovery of 40 to 80%, and is soft and excellent in strength and elasticity A chewing sensation can be provided so that damage to the gums can be minimized.
In addition, the high-performance toothbrush using coral calcium according to an embodiment of the present invention is useful for antibacterial and health since the minerals such as calcium are eluted after long use and the far-infrared rays and antibacterial property are maintained.
Example
Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to preferred embodiments of the present invention. It is to be understood, however, that the same is by way of illustration and example only and is not to be construed in a limiting sense.
The contents not described here are sufficiently technically inferior to those skilled in the art, and a description thereof will be omitted.
1. Measurement of coral calcium antimicrobial activity
Table 1 and FIGS. 1 and 2 show the results of measuring the antibacterial activity of coral calcium.
1) Use Disclosure strain: Escherichia coli ATCC 25922
2) Test conditions: The test strain was incubated at 37 ± 1 ° C for 1 hour with shaking, and then the number of bacteria was measured (120 times / minute of shaking)
3) Test sample weight: 2.0 g
4) Neutralization solution: Phosphate buffer solution (pH 7.0 ± 0.2)
5) Reduction rate (%): [(Mb - Mc) / Mb] × 100
Ma: initial number of bacteria (average value)
Mb: Number of bacteria (average value) of control sample after 1 hour incubation
Mc: Bacterium number (average value) of test sample after incubation for 1 hour
In Table 1, CFU is the Colony Forming Unit.
As a result of the measurement of the antibacterial activity, as shown in Table 1, a large number of colonies were observed in the culture medium of the control sample in which 2.5 × 10 5 CFU / ml of Escherichia coli was cultivated (see FIG. 1) In the medium of the test sample mixed with calcium, the antimicrobial activity was excellent and a small number of colonies formed in the medium were confirmed (see FIG. 2).
2. Coral calcium far infrared measurement
Table 2 shows the measurement results of far infrared rays of coral calcium.
1) Test method: KCL-FIR-1005: 2011
2) Measuring temperature: 40
3) Measurement wavelength: 5 탆 to 20 탆
As a result of far-infrared ray measurement, as shown in Table 2, it can be seen that the coral calcium has far infrared ray emissivity of 0.894 and far infrared ray radiation energy of 3.60x10 2 .
3. Residual Calcium Measurement
0.01 to 10 parts by weight of coral calcium powder was added to 100 parts by weight of polybutylene terephthalate resin (PBT), followed by melt extrusion at 250 캜, followed by extrusion spinning using a nozzle having a size of 0.8 mm.
Next, the extruded yarn was cooled with water at 10 DEG C and then stretched at 180 DEG C to produce short fibers. Next, the short fibers were made into bundles each having a diameter of 40 mm and then cut into a length of 60 mm to prepare bristles.
The bristles thus manufactured were used for 0 days [0 times wear test], 2 days use [1,080 times wear test], 5 days use [2,700 wear test], 10 days use [5,400 wear test] 10,800 times of wear test], and 30 days of use [16,200 times of wear test], and then measuring the amount of calcium to be eluted. Measurement of the eluted calcium was carried out according to EPA3052 (1996), US EPA6010B (1996), and ICP measurement method.
Table 3 and FIG. 3 show the results of measuring the amount of calcium eluted from the brush head using coral calcium.
As can be seen from Table 3 and FIG. 3, it can be confirmed that calcium elution occurs even after 30 days of use, and accordingly, the bristles using coral calcium according to one embodiment of the present invention are excellent in mineral, antibacterial, .
4. Manufacture of bristles
Example 1
0.1 part by weight of coral calcium powder was added to 100 parts by weight of polybutylene terephthalate resin (PBT), and then melt extruded at 250 DEG C, followed by extrusion spinning using a nozzle having a size of 0.8 mm.
Next, the extruded yarn was cooled with water at 10 DEG C and then stretched at 180 DEG C to produce staple fibers. Next, the short fibers were made into bundles each having a diameter of 40 mm and then cut into a length of 60 mm to prepare bristles.
Example 2
Bristles were produced in the same manner as in Example 1, except that 0.05 parts by weight of coral calcium powder was added to 100 parts by weight of polybutylene terephthalate resin (PBT).
Example 3
Bristles were prepared in the same manner as in Example 1, except that 1 part by weight of coral calcium powder was added to 100 parts by weight of polybutylene terephthalate resin (PBT).
Example 4
A toothbrush was prepared in the same manner as in Example 1, except that 5 parts by weight of coral calcium powder was added to 100 parts by weight of PTT (polytrimethylene terephthalate).
Example 5
Bristles were prepared in the same manner as in Example 1, except that 9 parts by weight of coral calcium powder was added to 100 parts by weight of nylon 6,12 resin.
Example 6
Except that 0.1 part by weight of the coral calcium powder was added to 100 parts by weight of the resin composition consisting of 65.0% by weight of PTT and 33.0% by weight of nylon 6,12 resin, Bristles were produced.
Comparative Example 1
65.0 wt.% Of polytrimethylene terephthalate (PTT), and 35.0 wt.% Of nylon 6,12 resin were used. Brushes were prepared in the same manner as in Example 1 except that resin compositions were used.
Comparative Example 2
Bristles were prepared in the same manner as in Example 1 except that 15 parts by weight of coral calcium powder was added to 100 parts by weight of polytrimethylene terephthalate (PTT).
5. Property evaluation
Table 4 shows the results of evaluating the physical properties of the bristles prepared according to Examples 1 to 6 and Comparative Examples 1 and 2.
1) Strength and elongation measurement
The tensile strength of the filament and the elongation of the filament were measured according to KS K0219 measurement method using an all-purpose material testing machine.
2) Measurement of flexion recovery rate
KS G3103 measurement method.
(N)
(%)
(%)
As shown in Table 4, in the case of the bristles according to Examples 1 to 6 in which coral calcium was added, the strength corresponding to the target value was 10 to 30 N, the elongation rate was 20 to 40%, and the flexural recovery rate was 40 to 80% It can be seen that both are satisfied.
On the other hand, in the case of Comparative Examples 1 and 2 in which coral calcium was not added or coral calcium powder was added in a range exceeding the range suggested in the present invention, it was confirmed that the strength, elongation and flexural recovery were below the target value Respectively.
6. Durability test
Table 5 shows the results of durability tests on the bristles for Examples 1 to 6 and Comparative Examples 1 and 2.
1) Durability measurement
The durability of the bristles is a wearing test for measuring the wrinkle. The toothbrush was repeatedly reciprocated at a speed of 2 times per second to the irregularities of the same shape as that of the teeth, and calculated according to the following formula 1.
Equation 1: L 1 - L 2 / L 1 ⅹ 100
(Where L 1 is the length of the hair before brushing, and L 2 is the length of the hair after brushing).
(cm)
(%)
As shown in Table 5, as a result of the abrasion resistance test for the bristles according to Examples 1 to 6, there was no change in the hair length until worn for 10,000 times, no wrinkling occurred, and even after 30,000 cycles, In the case of Examples 1 to 3 except for Examples 4 to 6, there was no change in the length of the hair and wrinkles.
As a result of the abrasion resistance test of the bristles according to Examples 1 to 6, there was no significant change in the length of the hair after 50,000 wounds, but the wilting was also measured to be less than 11%.
On the other hand, as a result of the abrasion resistance test for the bristles according to Comparative Examples 1 and 2, the hair length was increased after worn for 10,000 times and waxing occurred. Further, in the case of the bristles according to Comparative Examples 1 and 2, the simulation length was increased to 1.1 to 1.2 cm after 50,000 times of abrasion, and it was confirmed that the wicking became worse.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.
Therefore, the spirit of the present invention should not be construed as being limited to the above-described embodiments, and all of the equivalents or equivalents of the claims, as well as the following claims, I will say.
Claims (8)
A coral calcium powder added in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the resin composition;
Characterized in that the bristles are made of calcium.
The coral calcium powder,
A high-performance bristle using coral calcium, characterized in that the coral is calcined and pulverized.
The above-mentioned polyester-
A mixture of at least one selected from the group consisting of polytrimethylene terephthalate (PTT), polyethyleneterephthalate (PET), polyethylenenaphthalate (PEN), and polybutyleneterephtalate (PBT) Characterized in that the bristles are made of calcium carbonate.
In the nylon resin,
A nylon 6 resin, a nylon 11 resin, a nylon 12 resin, a nylon 6,6 resin, a nylon 6,10 resin, a nylon 6,11 resin, and a nylon 6,12 resin. High-performance bristles using coral calcium.
In the resin composition,
A biodegradable resin comprising polyamide, polylactic acid, polyacrylic acid, polyvinyl alcohol, polycarbonate, polyethylene oxide, polymethylmethacrylate, polystyrene and derivatives thereof, and polylactic acid and polyglycolic acid, A high-performance bristle using coral calcium, characterized in that it comprises a mixture of two or more.
Wherein the bristles
Wherein the bristles have a strength of 10N to 30N and an elongation of 20% to 40%.
Wherein the bristles
And has a flexural recovery of 40% to 80%.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020192302A (en) * | 2019-05-27 | 2020-12-03 | 株式会社Ｍｔｔ | Toothbrush with sphere-shaped brush hair tips having inside and surface layer impregnated with calcium and manufacturing method therefor |
| KR102442635B1 (en) * | 2022-05-18 | 2022-09-08 | 유환길 | Tongue cleaner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001048761A (en) * | 1999-08-06 | 2001-02-20 | Icc Kk | Dentifrice article or material such as gums or the like useful in oral cavity using powder or solution of baked weathered coral |
| CN1240347C (en) | 2003-05-11 | 2006-02-08 | 梁志民 | Biological molecular electonic network tooth brush |
| KR101281635B1 (en) * | 2012-02-27 | 2013-07-03 | 비비씨 주식회사 | Toothbrush through the blend technique containing zeolite for enhanced durability and antimicrobial and the manufacturing method thereof |
| KR101460679B1 (en) * | 2013-05-28 | 2014-11-12 | 주식회사 브러시월드 | Toothbrush and method for production of such a toothbrush |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2020192302A (en) * | 2019-05-27 | 2020-12-03 | 株式会社Ｍｔｔ | Toothbrush with sphere-shaped brush hair tips having inside and surface layer impregnated with calcium and manufacturing method therefor |
| KR102442635B1 (en) * | 2022-05-18 | 2022-09-08 | 유환길 | Tongue cleaner |
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