KR20080095011A - A toothbrush having high density filament - Google Patents

Abstract

A high density bristle toothbrush is provided to obtain the excellent effects of removing plaque, and good cleansing feelings after a user brushes his/her teeth, and to minimize the phenomenon where the bristles get widened. A high-density bristle portion(30) is formed on the front end of a bristle portion(20) of a toothbrush(100). An ordinary bristle portion(40) is formed on the rear of the high density bristle portion. The high-density bristle portion and the ordinary bristle portion are formed alternatingly in a longitudinal direction of the bristle portion. In the high density bristle portion, the space between holes(31) on which a bristle bunch is planted is formed to be narrower than that of the ordinary bristle portion to increase the density of the hole and the area of the hole and to increase the number of bristle bunches.

Description

A toothbrush having high density filament

1 is a plan view showing a planting portion of the toothbrush according to the prior art.

Figure 2 is a plan view showing the hair transplant of the high-density hair transplant toothbrush in accordance with a preferred embodiment of the present invention.

Figure 3 is a plan view showing the hair transplanting portion of the high-density hair transplanting toothbrush according to another embodiment of the present invention.

<Description of main reference numerals in the drawings>

10: toothbrush 20, 20a: cotton wool

30, 30a: high density planting portion 40, 40a: low density planting portion

100, 100a: high density flocculation toothbrush

The present invention relates to a high-density tufted toothbrush, and more particularly, to a high-density tufted toothbrush having an excellent plaque removal effect, a good cleaning feeling after brushing, an excellent gum massage effect, and a small brittleness.

It is important to remove plaque effectively to maintain healthy teeth. For effective plaque removal, the hair bundle must reach all areas, including the teeth and between them. Plaque removal also depends on the tooth pressure and the contact area.

Conventional toothbrushes, as shown in Figure 1, is a circular hole 12 (1.5 mm) of diameter (D) on which the hair bundle (not shown) is to be planted, and the distance t3 between the holes 12 is Since it is very wide at 0.8-1.2mm, the number of hair bundles that can be planted on the hair part 11 is limited. Therefore, the toothbrush 10 is difficult to remove effective plaque due to insufficient tooth pressure and insufficient contact area.

On the other hand, when the hair transplanter 11 is made small, the number of hair bundles is small, so the brushing feeling is not sufficient, and there is a problem that the hair growth becomes large due to the hair transplantation.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has an object of providing a high-density woolen toothbrush having excellent plaque removal effect, good cleaning feeling after brushing, excellent gum massage effect, and small brittleness. .

In order to solve the above problems, in the high-density tufted toothbrush according to the preferred embodiment of the present invention, a high-density tuft is formed at the tip of the toothbrush tuft, and the rear of the high-density tuft is formed with a relatively large spacing between the holes than in the high density tuft. An addition is formed so that a high density tuft part and a general tuft part are formed alternately along the longitudinal direction of a tuft part.

Preferably, the high-density hair transplanter has a smaller Y-direction spacing between the holes than the X-direction spacing between the holes, and the spacing in the Y-direction t3 between the holes is 0.1 mm to 0.6 mm.

In the high-density tufted toothbrush according to another preferred embodiment of the present invention, a high-density tuft is formed in the center of the tuft of the toothbrush tuft along the longitudinal direction of the toothbrush tuft, and the spacing between the holes is relatively larger than that of the high-density tuft around the densest tuft. The hair part is formed.

Preferably, the high-density tuft part has a smaller X-direction spacing between the holes than the Y-direction spacing between the holes, and the X-direction spacing t3 between the holes is 0.1 mm to 0.6 mm.

Here, it is preferable that the hole of a high density tuft part is square, the width t1 of a square is 1 mm-2 mm, and the length t2 is 1 mm-2 mm.

In addition, it is preferable that the high-density hair transplantation part accounts for 30% to 70% of the total area of the hair transplantation part.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

Toothbrush of the present invention is characterized in that 30% to 70% of the hair part to the high-density hair part to molar cleaning power, excellent hair bundle durability, excellent plaque removal effect due to a large contact area.

Figure 2 is a plan view showing the hair transplanting portion of the high-density hair transplanting toothbrush according to a preferred embodiment of the present invention.

Referring to the drawings, the toothbrush 100 has a high density hair transplantation part 30 formed at the tip of the hair transplantation part 20, and a general hair transplantation part 40 is formed at the rear of the high density hair transplantation part 30, thereby forming a hair transplantation part ( Along the longitudinal direction of 20, the high-density hair transplanter 30 and the general hair transplanter 40 are alternately formed.

In the present specification, the high-density tufts 30 have a narrower spacing between the holes 31 on which the hair bundles (not shown) are planted, so that the density of the holes 31 or the holes 31 may be smaller than that of the general tufts 40. It is the part that can increase the area and thus increase the number of hair bundles.

As described above, the high-density tufts 30 occupy 30% to 70% of the total area of the tufts 20. Preferably, the holes 31 of the high density tufts 30 are formed in a rectangle. More preferably, the hole 31 has a width t1 of 1.2 mm to 2.0 mm and a length t2 of 1.2 mm to 2.0 mm. When the width t1 and the length t2 of the hole 31 satisfy the above ranges, the plaque removing effect is most excellent.

The high density tufts 30 formed at the tip of the tufts 20 provide an appropriate tooth pressure necessary for cleaning teeth and interdental of the molar portion. In addition, the hair bundle of the tip of the tuft 20 is prevented from being easily opened to increase the durability of the toothbrush 100.

In addition, the high-density tufts 30 formed at the rear of the general tufts 40 provide excellent cleaning power to the entire tooth surface and the interdental.

Preferably, in the high-density hair transplanter 30, the Y-direction interval between the holes 31 is narrower than the X-direction interval between the holes 31, and the Y-direction interval t3 between the holes 31 is 0.1 mm. To 0.6 mm, more preferably 0.2 mm to 0.4 mm.

In summary, the toothbrush 100 has a high-density tuft part 30 formed at the tip of the tuft part 20, and the general tuft part 40 and the high-density tuft part 30 at the rear of the high-density tuft part 30. By being formed alternately, there is an advantage that not only 'molar' but also 'excellent cleaning power between the entire tooth surface and the interdental teeth'.

On the other hand, Figure 3 is a plan view showing the hair transplanting portion of the high-density hair transplanting toothbrush according to another preferred embodiment of the present invention.

Referring to the drawings, the toothbrush 100a is formed with a high density hair transplanter 30a at the center of the hair transplanter 20a along the length direction of the hair transplanter 20a, and a general hair transplanter around the high density hair implanter 30a. 40a is formed.

Preferably, in the high-density hair transplanter 30a, the X-direction spacing between the holes 31a is narrower than the Y-direction spacing between the holes 31a, and the X-direction spacing t3 between the holes 31a is 0.1 mm. To 0.6 mm, more preferably the X-direction interval t3 is 0.2 mm to 0.4 mm.

As such, when the high-density tuft portion 30a is formed long along the longitudinal direction and the X-direction interval t3 between the holes 31a is dense, the contact area with the tooth surface is widened and the plaque removal effect is excellent. .

Then, the plaque removal effect of the toothbrush 100 according to the preferred embodiment of the present invention, the degree of hair gap and customer satisfaction will be described. Examples 1 and 2 use the toothbrush 100 of the present invention, and the comparative example uses the toothbrush 10 having a general hair transplant.

Experiment 1: Experiment on Plaque Removal Effect

When brushing using the toothbrushes of Examples 1 and 2 and Comparative Example, the effect of reducing the plaque index (plaque index) was evaluated in the following manner.

That is, 30 clinical subjects were selected, and each of 10 patients was used to use the toothbrushes of Example 1, Example 2, and Comparative Example for a certain period (30 days), and the ratio of reduction of the plaque index after 14 days on the 0th day was The plaque index reduction rate after 30 days was measured and shown in Table 2.

As shown in Table 2, the toothbrush of the comparative example was found to be 3.7 ± 0.1% reduction in the tooth plaque index after 30 days of use, while the toothbrushes of Examples 1 and 2 were 9.2 ± 0.2% and 6.4 ± 0.3%, respectively. It can be seen that the effect is more excellent. Moreover, it turns out that the toothbrush of Example 1-2 is excellent also in the reduction rate of the plaque after 14 days.

Experiment 2: Experiment on Opening of Toothbrush

Evaluation of the bridging of the toothbrushes of Examples 1 and 2 and Comparative Example was conducted in the following manner. Example 1, 2 and Comparative Example After measuring the width of the initial bristles on the tip of the bristle part of the toothbrush with a Profile Projector, the toothbrush was attached to an automatic brushing device designed to take a load of 500 g. Place the toothbrush on the stainless steel plate shaped like the shape of the teeth of the toothbrush, put the toothpaste slurry mixture of toothpaste and water 2: 1 and perform automatic reciprocating 5000 times so that the tip of the brush head rubs against the stainless steel plate under the load of 500g. It was. After the reciprocating toothbrush was washed with water and dried, the width of the bristles caused by the reciprocating motion was measured by using an actual magnification measuring device. Is shown in Table 3.

% Bristle (tip of bristles) = (brushed width after test-bristle width before test) / (brushed width before test)

As can be seen in Equation 1, the smaller the gap opening (%) value, the smaller the gap.

As shown in Table 3, the toothbrushes of Examples 1 and 2 were 4.8 ± 0.3% and 5.6 ± 0.5%, respectively, and showed less hair opening than the toothbrush of the comparative example. Therefore, it turns out that the toothbrush of Example 1,2 is excellent in durability.

Experiment 3: Evaluation of Preference for Consumer Usability

Evaluation of the usability of the toothbrush of Examples 1 and 2 and the comparative example was tested as follows. The toothbrushes of Examples 1 and 2 and Comparative Example 1 were used for a period of time (15 days) for a list of 30 panelists, and a preference for usability was calculated using a 5-point comparison method through a comparative panel test. The average value is shown in Table 4.

In Table 4, evaluation criteria are shown in Table 5 below.

As shown in Table 4, Examples 1 and 2 were much superior to the molar plaque reduction effect, tooth surface plaque reduction effect, cleaning feeling after brushing, gum massage effect, overall satisfaction, and the like compared to the comparative example.

The high-density tufted toothbrush according to the present invention has an effect of excellent plaque removal effect, good cleaning feeling after brushing, excellent gum massage effect, and small bridging.

Claims (6)

A densified tuft is formed at the tip of the toothbrush tuft, and a rear tuft is formed at the rear of the dens tuft, where the spacing between holes is relatively larger than that of the dens tuft, and the dens tuft and the tuft are alternately along the longitudinal direction of the tuft. A high density tufted toothbrush, characterized in that formed. The method of claim 1, High-density planting part, The Y-direction spacing between the holes is formed to be narrower than the X-direction spacing between the holes, and the y-direction spacing t3 between the holes is 0.1mm to 0.6mm. A high-density hair transplanter is formed in the center of the hair transplanter along the longitudinal direction of the toothbrush tuft, and a general hair transplanter is formed around the high-density tuft, with a larger spacing between holes than that of the high-density tuft. The method of claim 3, High-density planting part, The spacing in the X direction between the holes is formed narrower than the spacing in the Y direction between the holes, the spacing (t3) in the X direction between the holes is characterized in that 0.1mm to 0.6mm. The method according to any one of claims 1 to 4, The high density woolen toothbrush has a rectangular shape, the width t1 of the square is 1 mm to 2 mm, and the length t2 is 1 mm to 2 mm. The method according to any one of claims 1 to 4, The high density tufts of toothbrush comprises 30% to 70% of the total area of the tufts.

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