WO2018174308A1

WO2018174308A1 - Highly functional toothbrush bristles using scoria, and toothbrush using same

Info

Publication number: WO2018174308A1
Application number: PCT/KR2017/003011
Authority: WO
Inventors: 강기태; 김영국; 김성진; 황소희; 이창순
Original assignee: 비비씨 주식회사
Priority date: 2017-03-21
Filing date: 2017-03-21
Publication date: 2018-09-27
Also published as: CN110446440A

Abstract

Disclosed are highly functional toothbrush bristles capable of securing excellent antibacterial properties by using scoria, which is an eco-friendly clean material, and a toothbrush using the bristles. The highly functional toothbrush bristles using scoria according to the present invention comprise: a resin composition comprising a polyester-based resin and/or a nylon resin; and powdered scoria added to account for 0.01- 10 parts by weight with respect to 100 parts by weight of the resin composition.

Description

High Functional Brush Head Using Volcanic Cluster and Toothbrush Using Same

The present invention relates to a bristle and a toothbrush using the same, and more particularly, to a high-functional bristle using a volcanic cluster that can ensure excellent antimicrobial properties using volcanic clusters which is an environmentally friendly clean raw material and a toothbrush using the same.

The toothbrush is composed of bristles, a head portion to which the bristles are planted, and a handle portion connected to the head portion. Toothbrushes with this configuration should always be hygienic as an important tool for oral hygiene. In particular, the bristles that are implanted into the head of the toothbrush must not only have a certain strength and elasticity, but also must be able to easily move along the teeth, which are the teeth to be brushed.

However, since these bristles are always stored and used mainly in a humid and poorly ventilated bathroom, it is difficult to store them in a hygienic state, causing diseases due to various bacterial propagation.

Recently, a method of chemically disinfecting the toothbrush or ultraviolet disinfection has been developed. However, this has resulted in an increase in cases of inconvenience in use due to a complex procedure of disinfecting the toothbrush manually or disinfecting with ultraviolet rays. have.

In addition, sterilization devices have been developed to suppress bacterial growth of the bristles, but since these sterilization devices are very expensive, they are difficult to be easily purchased at home, and power consumption occurs because continuous power must be supplied for operation. It is economically inefficient and difficult to carry due to disadvantages such as the situation is not widely used.

On the other hand, the conventional antibacterial toothbrush is used by mixing the antibacterial material with the resin of the bristles, in this case there is a problem that the coloring of the bristles with their own color, the coating is easily peeled off by uneven mixing in the mixing or coating process There is a problem losing. In addition, when using antibiotics there was a problem that can cause side effects due to the excessive use of antibiotics.

Related prior art documents include Korean Patent Laid-Open Publication No. 10-2003-0068758 (published on Aug. 25, 2003), which discloses a bristles manufacturing method and a toothbrush.

An object of the present invention is to provide a high-functional bristle and a toothbrush using the volcanic cluster that can ensure excellent antimicrobial activity using volcanic cluster which is an eco-friendly clean raw material.

High-functional bristle using volcanic ash according to an embodiment of the present invention for achieving the above object is a resin composition comprising at least one or more of polyester-based resin and nylon resin; And volcanic cluster powder added in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the resin composition.

High functional bristle bristles using volcanic pine according to the present invention and toothbrushes using the same have excellent antifungal antibacterial effect by adding volcanic cluster powder, which is an eco-friendly clean raw material, in an amount of 0.01 to 10 parts by weight, based on 100 parts by weight of the resin composition. As well as ensuring more than 99% antimicrobial activity, it is excellent in removing the deodorant.

In addition, the high-functional bristle and the toothbrush using the volcanic ash according to an embodiment of the present invention has a strength: 10 to 30N, elongation: 20 to 40% and bending recovery rate: 40 to 80%, soft and strong and Excellent elasticity can provide a refreshing brushing can minimize damage to the gums.

1 is a SEM photograph of the volcanic ash powder.

Figure 2 is a photograph showing the X-ray diffraction pattern of the volcanic ash powder.

Figure 3 is a photograph showing the state after abrasion for 10,000 times the bristles for Examples 1-4.

Figure 4 is a photograph showing the state after wearing the bristles for 30,000 times for Examples 1 to 4.

Figure 5 is a photograph showing the state after abrasion for 50,000 times the bristles for Examples 1-4.

Advantages and features of the present invention, and methods for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the present embodiments are intended to complete the disclosure of the present invention, and the general knowledge in the technical field to which the present invention belongs. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, with reference to the accompanying drawings, a high functional bristle using a volcanic ash and a toothbrush using the same according to a preferred embodiment of the present invention will be described in detail.

The highly functional bristle using volcanic ash according to an embodiment of the present invention includes a resin composition and volcanic ash powder.

The resin composition may include at least one or more of a polyester resin and a nylon resin. That is, the resin composition may be used independently of the polyester resin, or only nylon resin may be used independently. Alternatively, the resin composition may be used with a polyester resin and a nylon resin.

At this time, the polyester-based resin serves to improve the filament strength and elasticity of the bristles. To this end, polyester-based resins include polyethyleneterephthalate (PET), polyethylene naphthalate (PEN), polybutyleneterephtalate (PBT) and polytrimethyleneterephthalate (PTT). One or a mixture of two or more selected may be used.

It is preferable that the polyester-based resin has 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 when the number average molecular weight is used in the above range.

And the nylon resin plays a role of improving the filament strength and elasticity of the bristles like the polyester resin. To this end, nylon resins include nylon 612 resin, nylon 610 resin, polyamide, polyacrylic acid, polyvinyl alcohol, polycarbonate, polyethylene oxide, polymethyl methacrylate, polystyrene and derivatives thereof, and poly lactic acid. ) And a mixture of one or two or more selected from biodegradable resins including polyglycolic acid.

Volcanic cluster, which is the raw material of volcanic cluster powder, is an environmentally friendly raw material. It has far-infrared effect to activate blood cells and promote blood circulation and metabolism by activating molecular movement, and it is excellent in heavy metal and electromagnetic wave blocking effect. In addition, the volcanic mushroom has an antifungal antimicrobial effect because it is excellent in suppressing the occurrence of various fungi and the growth of pathogens and bacteria, and excellent in removing deodorization of ammonia, formaldehyde, organic compounds and the like.

Such volcanic cluster (scoria) is preferably used that is collected from Jeju volcanic stone. At this time, volcanic pine (Scoria) is a weak alkaline resource similar to the world's only human blood buried in Jeju Island, Korea. It is produced through parasitic volcanoes (rising) and is calculated throughout Jeju. It is estimated to be distributed.

FIG. 1 is a SEM photograph of volcanic ash powder, and FIG. 2 is a photograph showing an X-ray diffraction pattern of volcanic ash powder, which will be described in more detail with reference to this.

As shown in FIGS. 1 and 2, volcanic ash, a volcanic ash, combines oxygen with 1600 ° C magma scattering in the air after 110 times of volcanic activity over tens of millions of years. Calcined stone charcoal, unlike other acidic volcanic stones, is a slightly alkaline natural ceramic.

This volcanic cluster has a high deodorizing power as a porous body, has a stable chemical structure with little organic impurities, mainly reddish brown, yellowish brown, black and dark gray, fire resistance of 1,120 ~ 1,210 ℃, absorption rate of 17.7 ~ 32.8%, 47.25 ~ It has a wear rate of 67.22% and a specific gravity of 1.31 to 1.90 g / ml.

In addition, volcanic clusters are mainly composed of pyrite, plagioclase (PI), magnetite (H) and the like, as can be seen through the X-ray diffraction pattern shown in FIG. 2, and silicon oxide, aluminum oxide, iron oxide, titanium oxide, and the like. And the like. In addition, the volcanic cluster may contain calcium calcium in an amount of 0.01 to 20% by weight.

These volcanic clusters are black sands that exhibit 92% of far-infrared radiation even when no natural heat is applied.They are natural materials capable of combating mold and Escherichia coli with 92% formaldehyde deodorization rate, 99% ammonia deodorization rate and 99.9% antibacterial activity. It is a natural material with the best functions that cannot be compared with jade, loess, elvan, and germanium, which are widely used in recent years.

Therefore, as in the present invention, when the volcanic pine powder is added to the resin composition in a certain content ratio, it can exhibit an antibacterial and deodorizing effect of 99% or more. Specifically, the volcanic ash powder is preferably added in an amount ratio of 0.01 to 10 parts by weight based on 100 parts by weight of the resin composition. When the amount of the volcanic ash powder added is less than 0.01 part by weight with respect to 100 parts by weight of the resin composition, it may be difficult to properly exert the above effects because the amount is insignificant. On the contrary, when the amount of the volcanic ash powder added exceeds 10 parts by weight with respect to 100 parts by weight of the resin composition, it may act as a factor of lowering the strength and bending recovery rate when applied to the bristles.

On the other hand, high functional bristles using volcanic ash according to an embodiment of the present invention may be further added to the additive within a range that does not inhibit the physical properties. In this case, the additive may be an abrasive, a coupling agent, and the like, which may be added alone or in combination. In this case, the abrasive may be one or more selected from silicon dioxide, aluminum hydroxide, calcium carbonate, silica, bentonite clay, calcium phosphate, dicalcium phosphate, anhydrous calcium phosphate, but is not limited thereto. In addition, coupling agents may be used to enhance the interaction between the resin composition and the abrasive.

The highly functional bristles using volcanic ash are added to the resin composition with volcanic ash powder, melt extruded, extruded and spun using a nozzle, and the extruded spun yarn is cooled in water to prepare short fibers.

That is, the short fibers may be manufactured by using an extruder, and in this case, various types of extruders such as a twin screw extruder may be used as the extruder. At this time, the resin composition and the volcanic ash 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 oval, a rectangle, a triangle, and a regular polygon. Such yarns may have a single spinning structure or may be formed of a core-sheath bispinning structure having a core layer and a sheath layer. In this core-cis double-radiated structure, the sheath layer is preferably formed in a shape that surrounds the core layer in a coaxial or concentric form.

Also, yarns can be produced by melt spinning. In the extrusion process, the yarn strands are released from the die plate and then solidified in a quench water bath and then transported through a series of draw rolls for stretching to three to eight times their original length. Yarns can be drawn at a constant speed and time, and wound and produced on a winding machine such as a drum or spool.

These yarns can be made into a bundle of yarns of different colors, diameters, polymer compositions, lengths, and shapes to produce particular bristles.

The highly functional bristles using volcanic ash according to the embodiment of the present invention described above have strength: 10 to 30N, elongation: 20 to 40%, and bending recovery rate: 40 to 80%.

In this case, when the bristle 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, and there is a high possibility that durability is not secured. On the contrary, when the bristle recovery rate of the bristles exceeds 80%, the strength exceeds 30N, and the elongation is less than 20%, the bristles are formed too stiffly, the gums can be easily damaged, and the wear and tear become weak. Problems may arise.

Therefore, the high-functional toothbrush manufactured by planting the high-functional bristle bristles according to an embodiment of the present invention is to add volcanic pine powder, which is an eco-friendly clean material, in an amount ratio of 0.01 to 10 parts by weight based on 100 parts by weight of the resin composition. By the anti-fungal antibacterial effect is excellent, not only can secure 99% or more antibacterial, but also excellent in removing the deodorant.

In addition, the highly functional toothbrush using volcanic ash according to the embodiment of the present invention has a strength of 10 to 30N, an elongation of 20 to 40%, and a bending recovery rate of 40 to 80%, and is soft and excellent in strength and elasticity. It can provide a refreshing brushing effect to minimize gum damage.

실시예Example

Hereinafter, the configuration and operation of the present invention through the preferred embodiment of the present invention will be described in more detail. However, this is presented as a preferred example of the present invention and in no sense can be construed as limiting the present invention.

Details that are not described herein will be omitted since those skilled in the art can sufficiently infer technically.

1. One. 화산송이Volcano 항균력 측정 Antimicrobial Activity

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

1) Used strain: Escherichia coli ATCC 25922

2) Test condition: Test bacteria after shaking culture for 1 hour at 37 ± 1 ℃ (number of shaking 120 times / min)

3) Test sample weight: 2.0 g

4) Neutralization solution: Phosphate buffer solution (pH 7.0 ± 0.2)

5) Reduction (%): [(M _b -M _c ) / M _b ] × 100

M _a : Initial number of bacteria in the control sample (average value)

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

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

TABLE 1

2. 칫솔모 제조2. Brush head manufacture

Example One

To 100 parts by weight of polybutylene terephthalate resin (PBT), 0.1 part by weight of the volcanic ash powder was added, followed by melt extrusion at 250 ° C., followed by extrusion spinning using a 0.8 mm nozzle.

Next, the extruded spun yarn was cooled with 10 ° C. water, and then stretched at 180 ° C. to prepare short fibers. Next, short fibers were made into bundles of 40 mm in diameter, and then cut into lengths of 60 mm to prepare bristles. At this time, the volcanic oyster powder was used that contains the calcium calcium content of 7.5% by weight of the total 100% by weight.

Example 2

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

Example 3

Toothbrush was prepared in the same manner as in Example 1, except that 1 part by weight of volcanic ash powder was added to 100 parts by weight of polybutylene terephthalate resin (PBT).

Example 4

Brush head was prepared in the same manner as in Example 1, except that 5 parts by weight of volcanic ash powder was added based on 100 parts by weight of polytrimethylene terephthalate (PTT).

Example 5

Brush head was prepared in the same manner as in Example 1, except that 9 parts by weight of the volcanic ash powder was added based on 100 parts by weight of nylon 612 resin.

Example 6

The bristles were prepared in the same manner as in Example 1, except that 0.1 parts by weight of volcanic ash powder was added to 100 parts by weight of the resin composition composed of 65.0% by weight of polytrimethylene terephthalate (PTT) and 33.0% by weight of nylon 612 resin. Prepared.

Comparative example One

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

Comparative example 2

Brush head was prepared in the same manner as in Example 1, except that 15 parts by weight of the volcanic ash powder was added to 100 parts by weight of polytrimethylene terephthalate (PTT).

3. 물성 평가3. Property evaluation

Table 1 shows the physical property evaluation results for the bristles prepared according to Examples 1 to 6 and Comparative Examples 1 and 2.

1) Strength and elongation measurement

The filament tensile strength and elongation using the universal testing machine was measured according to the KS K0219 measuring method.

2) Measurement of flexure recovery rate

It measured based on the KS G3103 measuring method.

TABLE 2

As shown in Table 2, in the case of the bristles according to Examples 1 to 6 in which volcanic ash was added, the strength corresponding to the target value: 10 to 30N, elongation: 20 to 40% and bending recovery rate: 40 to 80% It can be seen that all are satisfied.

On the other hand, in the case of Comparative Examples 1 to 2 added without the volcanic cluster or even if the volcanic cluster powder was added within the range suggested by the present invention, the elongation satisfies the target value, but the strength and the bending recovery rate are the targets. It was confirmed that the value was not reached.

3. 내구성 테스트3. Durability test

Table 3 shows the results of the durability test for the bristles for Examples 1 to 6 and Comparative Examples 1 and 2. In addition, FIGS. 3 to 5 are respective photographs showing the state after the bristles for Examples 1 to 4 were worn for 10,000 times, 30,000 times, and 50,000 times.

1) durability measurement

The durability of the bristles refers to a wearing test that measures hair swelling, and it is calculated according to Equation 1 by repeatedly reciprocating the planted toothbrush twice at a rate of 2 times per second to the same type of irregularities as the teeth.

Equation 1: L ₁ -L ₂ / L ₁ × 100

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

TABLE 3

As shown in Table 3 and FIGS. 3 to 5, the abrasion resistance test for the bristles according to Examples 1 to 6 showed no change in the hair length until wear for 10,000 times, and no bridging occurred. After the 30,000 times, Examples 1 to 3 except Examples 4 to 6 had no change in hair length and hair flare.

In addition, as a result of the abrasion resistance test for the bristles according to Examples 1 to 6, although there was a change in the hair length even after wearing 50,000 times, there was no significant change, the bridging was also measured to 11% or less.

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 wear for 10,000 times, and the hair gap occurred. In addition, in the case of the bristles according to Comparative Examples 1 and 2, after abrasion for 50,000 times, the length of the hair was increased to 1.1 to 1.2 cm, and it was confirmed that the bridging was severe.

Although the above has been described with reference to the embodiments of the present invention, various changes and modifications can be made at the level of those skilled in the art. Such changes and modifications can be said to belong to the present invention without departing from the scope of the technical idea provided by the present invention. Therefore, the scope of the present invention will be determined by the claims described below.

Claims

Resin composition containing at least 1 sort (s) of polyester-type resin and nylon resin; And

Volcanic cluster powder added at 0.01 to 10 parts by weight based on 100 parts by weight of the resin composition;

High-functional bristle using a volcanic cluster containing.
The method of claim 1,

The polyester resin

1 or 2 or more selected from polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polybutylene terephthalate (PBT) and polytrimethylene terephthalate (PTT) High-performance brush head using volcanic clusters, characterized in that.
The method of claim 1,

The nylon resin is

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 High functional bristle using volcanic ash, characterized in that it comprises one or a mixture of two or more selected from biodegradable resins containing glycolic acid).
The method of claim 1,

The volcanic cluster powder

High-performance brush head using volcanic pine, characterized in that collected from Jeju volcanic stone.
The method of claim 4, wherein

The volcanic cluster powder

High-performance bristle using volcanic ash, characterized in that the calcium calcium is contained in an amount of 0.01 to 20% by weight.
The method of claim 1,

The brush head

Highly functional bristle using volcanic pine, characterized in that it has strength: 10 to 30N and elongation: 20 to 30%.
The method of claim 1,

The brush head

Flexural recovery rate: High functional bristles using volcanic clusters, characterized in that having a 45 ~ 55%.
The toothbrush using the bristles of any one of Claims 1-7.