KR20170066747A

KR20170066747A - High functional toothbrush hairs using scoria and toothbrush using the same

Info

Publication number: KR20170066747A
Application number: KR1020150172361A
Authority: KR
Inventors: 강기태; 김영국; 김성진; 황소희; 이창순
Original assignee: 비비씨 주식회사
Priority date: 2015-12-04
Filing date: 2015-12-04
Publication date: 2017-06-15
Also published as: KR101811024B1

Abstract

The present invention relates to a high-performance bristle brush and a toothbrush using the bristle brush which can secure excellent antibacterial properties by using a volcanic ash, which is an environment-friendly clean raw material.
The high-performance bristles using the volcanic cluster according to the present invention include a resin composition comprising at least one of a polyester resin and a nylon resin; And a volcanic clay powder added in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the resin composition.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a brush bristle,

The present invention relates to a brush bristle and a toothbrush using the brush bristle. More particularly, the present invention relates to a brush bristle using a volcanic ash, which is capable of ensuring excellent antibacterial property by using a volcanic ash, which is an eco-friendly clean raw material, and a toothbrush using the same.

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 having this configuration should always be hygienic as an important tool for oral hygiene. In particular, the bristles bristled on the head of the toothbrush not only have to have constant strength and elasticity, but also must be able to move easily along the tooth, which is the part 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.

Recently, a method of chemically disinfecting a toothbrush or disinfecting it with ultraviolet rays has been developed. However, due to a complicated procedure such as disinfecting a toothbrush or disinfecting it with ultraviolet rays, have.

In addition, sterilization apparatuses have been developed to suppress the propagation of bacteria in bristles. However, since the sterilizing apparatus is very expensive, it is difficult to easily install the sterilizing 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.

It is an object of the present invention to provide a high-performance bristle using a volcanic cluster capable of securing excellent antimicrobial activity by using a volcanic rock as an environmentally friendly raw material, and a toothbrush using the bristle.

According to an aspect of the present invention, there is provided a brush bristle comprising: a resin composition comprising at least one of a polyester resin and a nylon resin; And a volcanic clay powder added in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the resin composition.

The high-performance bristles using the volcanic cluster according to the present invention and the toothbrush using the same are excellent in antifungal antibacterial effect by adding the volatile siliceous powder as an eco-friendly clean raw material at a content ratio of 0.01 to 10 parts by weight per 100 parts by weight of the resin composition Not only the antimicrobial activity of 99% or more can be secured but also the effect of removing deodorization is excellent.

In addition, the bristles of high performance using the volcanic cluster according to the embodiment of the present invention and the toothbrush using the bristles have a strength of 10 to 30 N, a elongation of 20 to 40% and a flexural recovery of 40 to 80% It is possible to provide a smooth brushing feeling because of excellent elasticity, so that damage to the gums can be minimized.

Fig. 1 is a SEM photograph of a volcanic clay powder. Fig.
2 is a photograph showing an X-ray diffraction pattern of a volcanic clay powder.
Fig. 3 is a photograph showing the state after the bristles are worn for 10,000 times in Examples 1 to 4; Fig.
4 is a photograph showing the state after the bristles are worn for 30,000 times for Examples 1 to 4;
Fig. 5 is a photograph showing the state after the bristles are worn for 50,000 times for Examples 1 to 4; Fig.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a brush bristle according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The high-performance bristles using a volcanic cluster according to an embodiment of the present invention include a resin composition and a volcanic clay powder.

The resin composition may include at least one of a polyester-series 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.

At this time, the polyester resin serves to improve the strength and elasticity of the filament of the bristles. For this purpose, examples of the polyester resin include polyethyleneterephthalate (PET), polyethylene naphthalate (PEN), polybutyleneterephtalate (PBT), and polytrimethyleneterephthalate (PTT). One selected or a mixture of two or more 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. For this purpose, nylon resins include nylon 612 resin, nylon 610 resin, polyamide, polyacrylic acid, polyvinyl alcohol, polycarbonate, polyethylene oxide, polymethylmethacrylate, polystyrene and derivatives thereof, poly lactic acid ) And a biodegradable resin including poly glycolic acid may be used.

As a raw material of volcanic clay powder, volcanic clay is an eco-friendly raw material. It has a far-infrared effect that promotes blood circulation and metabolism by activating the molecules of the human body by activating molecular motion, and is excellent in heavy metal and electromagnetic wave shielding effect. In addition, the volcanic pine has excellent antifungal antibacterial effect and excellent effect of removing deodorization such as ammonia, formaldehyde and organic compounds because it has excellent functions of inhibiting the occurrence of various fungi and habitat of pathogens and bacteria.

These volcanic scoria are preferably collected from Jeju volcanic rocks. At this time, Scoria volcanic ash (Scoria) is a weak alkaline resource similar to the world's only human blood that is buried in Cheju Island, South Korea. It is produced as a parasitic volcano (ascension) and is calculated throughout Jeju. It is estimated to be distributed.

Fig. 1 is an SEM photograph of a volcanic clay powder, Fig. 2 is a photograph showing an X-ray diffraction pattern of a volcanic clay powder, and will be described in more detail with reference thereto.

As shown in FIG. 1 and FIG. 2, volcanic ash volcanic clusters are composed of magma of 1,600 ° C. during 110 volcanic volcanic activities from several tens of years to millions of years, It is calcined charcoal, and it is a weakly alkaline natural ceramic, unlike the acidic volcanic rocks of other regions.

These volcanic rocks are porous, have high deodorizing power, have a stable chemical structure with little organic impurities, and are mainly reddish brown, yellowish brown, black and dark gray, have fire resistance of 1,120 ~ 1,210 ℃, absorption of 17.7 ~ 32.8% A wear rate of 67.22%, and a specific gravity of 1.31 to 1.90 g / ml.

As can be seen from the X-ray diffraction pattern shown in Fig. 2, the volcanic clusters are mainly composed of pyroxene Py, plagioclase (PI), magnetite H and the like, and are composed of silicon oxide, aluminum oxide, And so on. In addition, the volcanic rock may contain the calcium carbonate in a content ratio of 0.01 to 20% by weight.

This volcanic cluster is a black body that shows 92% of far-infrared radiation even when it does not heat in natural condition. It has a deodorization rate of formaldehyde of 92%, an ammonia deodorization rate of 99%, and an antimicrobial activity of 99.9% It is a natural material with the best features that can not be compared with jade, ocher, elvan, and germanium which are widely used in the foundation.

Therefore, as in the present invention, when the volatile silicate powder is added to the resin composition at a predetermined ratio, 99% or more of the antibacterial and deodorizing effect can be exhibited. Specifically, the volcanic clay powder is preferably added in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the resin composition. When the addition amount of the volcanic clay powder is less than 0.01 part by weight with respect to 100 parts by weight of the resin composition, the addition amount thereof is insignificant, so that it may be difficult to exhibit the above effect properly. On the contrary, when the addition amount of the volcanic clay powder 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 the bending recovery rate when applied to the bristles.

Meanwhile, the high-performance bristles using the volcanic cluster 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 the volcanic clusters are produced by extruding a molten silicate powder into a resin composition, melt extruding the mixture, extruding the mixture using a nozzle, and then extruding the spun yarn into water to produce staple fibers.

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 volcanic clay powder are mixed as a melt in an extruder, and the resulting mixture is weighed 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.

Such 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 the volcanic cluster according to the embodiment of the present invention have a strength of 10 to 30 N, a elongation of 20 to 40% and a flexural recovery 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.

Accordingly, 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 obtained by adding the volatile silk powder as an environment-friendly clean raw material at a content ratio of 0.01 to 10 parts by weight to 100 parts by weight of the resin composition , The antifungal antimicrobial effect is excellent and not less than 99% of antimicrobial activity can be secured, and the effect of removing deodorization is excellent.

Further, the high-performance toothbrush using the volcanic clay according to the embodiment of the present invention has a strength of 10 to 30 N, a elongation of 20 to 40%, and a flexion recovery rate of 40 to 80%, which is soft and excellent in strength and elasticity A chewing sensation can be provided so that damage to the gums can be minimized.

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 antibacterial activity of volcanic clay

Table 1 shows the results of measuring the antibacterial activity of the volcanic clusters.

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 (%): [(M _b - M _c ) / M _b ] × 100

M _a : initial number of bacteria (average value)

M _b : Number of bacteria (average value) of control sample after 1 hour incubation

M _c : Number of bacteria (average value) of the test sample after 1 hour incubation

[Table 1]

2. Manufacture of bristles

Example 1

0.1 part by weight of a volcanic clay 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. At this time, the volcanic clay powder was used in which the content of calcium carbonate in the total amount of 100 wt% was 7.5 wt%.

Example 2

Bristles were prepared in the same manner as in Example 1, except that 0.05 parts by weight of the powdery clay powder was added to 100 parts by weight of polybutylene terephthalate resin (PBT).

Example 3

Bristles were produced in the same manner as in Example 1, except that 1 part by weight of the powdery silicate powder was added to 100 parts by weight of polybutylene terephthalate resin (PBT).

Example 4

Bristles were prepared in the same manner as in Example 1, except that 5 parts by weight of a volcanic clay powder was added to 100 parts by weight of polytrimethylene terephthalate (PTT).

Example 5

Bristles were produced in the same manner as in Example 1, except that 9 parts by weight of the powdery silicate powder was added to 100 parts by weight of nylon 612 resin.

Example 6

Except that 100 parts by weight of a resin composition consisting of 65.0% by weight of polytrimethylene terephthalate (PTT) and 33.0% by weight of nylon 612 resin was added with 0.1 part by weight of a volcanic clay powder, .

Comparative Example 1

65.0 wt.% Of PTT and 35.0 wt.% Of nylon 612 resin were used in the same manner as in Example 1, except that a resin composition was used which was composed of polytrimethylene terephthalate (PTT) 65.0 wt.% And nylon 612 resin 35.0 wt.

Comparative Example 2

Bristles were prepared in the same manner as in Example 1, except that 15 parts by weight of the powdery silicate powder was added to 100 parts by weight of polytrimethylene terephthalate (PTT).

3. Property evaluation

Table 1 shows the results of evaluating physical properties of the bristles produced 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.

[Table 2]

As shown in Table 2, in the case of the bristles according to Examples 1 to 6 in which a volcanic cluster was added, the strength corresponding to the target value was 10 to 30 N, the elongation was 20 to 40%, and the flexion 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 the volatilized clusters were not added or the volcanic clay powders were added to the range not exceeding the range suggested in the present invention, the elongation satisfied the target value, Of the total amount.

3. Durability test

Table 3 shows the results of durability tests on the bristles for Examples 1 to 6 and Comparative Examples 1 and 2. 3 to 5 are photographs showing the state after the bristles for Examples 1 to 4 are worn for 10,000 times, 30,000 times, and 50,000 times, respectively.

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 ₁ 100

(Where L ₁ is the length of the hair before brushing, and L ₂ is the length of the hair after brushing).

[Table 3]

As shown in Table 3 and Figs. 3 to 5, as a result of the wear resistance test on the bristles according to Examples 1 to 6, there was no change in the bristle length until worn for 10,000 times, no wicking occurred , There was no change in the parent hairline length and wrinkling in Examples 1 to 3 except for Examples 4 to 6 after 30,000 times.

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 abrading, and it was confirmed that the wicking was worsened.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, 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. These changes and modifications may be made without departing from the scope of the present invention. Accordingly, the scope of the present invention should be determined by the following claims.

Claims

A resin composition comprising at least one of a polyester resin and a nylon resin; And
A volcanic clay powder added in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the resin composition;
Bristles with high functionality using volcanic clusters.

The method according to claim 1,
The above-mentioned polyester-
A mixture of at least one selected from the group consisting of polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polybutylene terephthalate (PBT), and polytrimethyleneterephthalate (PTT) Wherein the bristles are made of a volute.

The method according to claim 1,
The nylon resin
Nylon 612 resin, nylon 610 resin, polyamide, polyacrylic acid, polyvinyl alcohol, polycarbonate, polyethylene oxide, polymethylmethacrylate, polystyrene and derivatives thereof, poly lactic acid and polyglycolic acid glycolic acid, or a mixture of two or more selected from the group consisting of a biodegradable resin and a biodegradable resin.

The method according to claim 1,
The volcanic clay powder
High-performance bristles using volcanic clusters characterized by being collected from Jeju volcanic rocks.

5. The method of claim 4,
The volcanic clay powder
Wherein the coral calcium is contained in an amount of 0.01 to 20% by weight based on the total weight of the bristles.

The method according to claim 1,
The bristles
Wherein the brush bristle has a strength of 10 to 30 N and a elongation of 20 to 30%.

The method according to claim 1,
The bristles
Wherein the brush bristle has a flexural recovery ratio of 45 to 55%.

A toothbrush using the bristle according to any one of claims 1 to 7.