KR100416418B1 - Tooth brush having highly bristled region - Google Patents

Abstract

The present invention relates to a toothbrush in which tooth cleaning is enhanced by forming a head of a toothbrush into a high density hair clip part and a low density hair clip part, and the hole spacing (a) between the hair follicle holes 3 is 0.6 mm or less, and the horizontal hole length (b) the front end of the head so that the high-density woolen part 1, in which the woolen holes 3 having 1 to 2 mm and the longitudinal hole length (c) 1 to 2 mm are formed, becomes 10 to 40% of the entire haired part of the head. The low density woolen part 2 is formed in the head, and the lower density woolen part 2 having a wider ordinary hole spacing and circular hatching holes 3 having a diameter of 1 to 2 mm than the hole spacing a of the high density woolen part 1 is formed. 60 to 90% of the entire tufts of hair is characterized in that formed on the rear end of the head.

Therefore, the present invention not only has excellent overall brushing effect in use for molar plaque reduction effect, tooth surface plaque reduction effect, improvement of cleaning feeling, etc., but also less bristle of bristles, thereby providing an excellent toothbrush durability. There is.

Description

Tooth brush having highly bristled region

The present invention relates to a toothbrush having a high density tuft. More specifically, the present invention relates to a toothbrush having a tooth cleaning function which is formed by dividing the head of the toothbrush into a high density hair clip part and a low density hair clip part.

Effective plaque removal is one of the most important factors for maintaining healthy teeth. For effective plaque removal, the bristles of the toothbrush reach all areas such as the tooth surface, the molar teeth and the teeth and teeth (interdental parts), and brush teeth effectively. Also, when brushing teeth, brushing teeth and molar teeth. The applied tooth pressure and the contact area should be applied differently to remove the plaque most efficiently. However, since most of the conventional toothbrushes are made of round bristles of cylindrical bristles, there is an unreasonable point that they do not exhibit the same cleaning or brushing effect on each part of the tooth and thus do not become effective brushing.

Thus, in addition to the conventional toothbrushes, toothbrushes have been developed so that the bristles of the bristles of the bristles have a sharp tip shape or a bristle shape at an inclined angle in the direction of the toothbrush. However, these toothbrushes are effective at brushing the rear of the molar, but have a disadvantage of not evenly brushing the teeth. In particular, the tip portion of the bristle part in the toothbrushes made of the bristles at an inclined angle in the direction of the toothbrush rod has a disadvantage in that the bristles are easily opened as compared to a general flat toothbrush.

In addition to the toothbrushes mentioned above, there were also toothbrushes that had bristles of the bristles of the English V-shape or irregularities, but they also worked effectively on all teeth as mentioned above when the user brushed their teeth. In the original aspect of the function of removing or maintaining a healthy tooth by brushing, the brushing effect is not sufficient, there was a problem such as deterioration of durability in the parts receiving more force according to the special shape.

An object of the present invention is to provide a toothbrush that provides an excellent plaque removal effect by providing a toothbrush having a high density hair transplant.

Another object of the present invention is to provide a toothbrush having a high-density tufted portion having a large contact area with respect to the tooth surface to provide an excellent brushing effect and plaque removal effect.

Another object of the present invention is to provide a toothbrush that provides an excellent brushing effect and plaque removal effect by providing a toothbrush planted with embossed bristles.

Another object of the present invention is to mix and plant bristles having a rectangular cross section and bristles having a rhombic cross section together with circular bristles in the low density bristles to remove the plaque effect on the gums and the plaque to the depths of the teeth. To provide a toothbrush that provides excellent plaque removal.

1 is a side view of a head of a toothbrush having a high density tuft in accordance with the present invention.

2 is a plan view of a head of a toothbrush having a high density tuft in accordance with the present invention.

Figure 3 is an enlarged photograph of the general bristles planted in the hair part of the head.

4 is an enlarged photograph of an embossed bristle that is planted in the hair part of the head.

Explanation of symbols on the main parts of the drawings

1: high density hair part 2: low density hair part

3: seedling hole a: hole spacing

b: Horizontal hole length c: Vertical hole length

Toothbrush having a high-density tuft according to the present invention, the hole spacing between the tuft hole is 0.6mm or less, the high-density tufts formed with the tuft holes of the horizontal hole length 1 to 2mm and the longitudinal hole length 1 to 2mm It is formed in the front end of the head to be 10 to 40% of the entire part, and the low density hair growth part formed with a wider ordinary hole spacing and circular hair growth holes having a diameter of 1 to 2 mm than the hole spacing of the high density hair growth part. It is formed at the rear end of the head so as to be 60 to 90% of the whole tufts.

The bristles that are planted in the high-density hair bristles may be bristles having a general circular cross section, bristles having a rectangular cross section, bristles having a rhombic cross section, embossed bristles, or mixed bristles thereof.

The bristles planted in the low density bristles may be bristles having a general circular cross section, bristles having a rectangular cross section, bristles having a rhombic cross section, embossed bristles, or mixed bristles thereof.

The tuft hole may have a shape of the tuft hole in a circle, a square, a hexagon, or the like.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the toothbrush having the high-density tufted portion according to the present invention, the hole spacing (a) between the tuft holes (3) is 0.6 mm or less, the transverse hole length (b) 1 to 2 mm and the longitudinal hole length (c) 1 to 2 The high density hair transplantation part 1 in which the hair growth holes 3 of mm are formed is formed in the front end part of the head so that 10-40% of the whole hair transplantation part of the head may be formed, and the hole spacing a of the high density hair transplantation part 1 is provided. Compared to the lower end of the head, the lower-density hair part 2 having wider ordinary hole spacing and circular hair holes 3 having a diameter of 1 to 2 mm is 60 to 90% of the entire hair part of the head. Characterized in that it is made.

As shown in Fig. 1 and Fig. 2, forming the hair transplanting part of the head of the toothbrush according to the present invention into the high-density tufting part 1 and the low-density tufting part 2 is formed in the tuft hole 3 formed in these tufts. By narrowing the spacing between them, it is thereby possible to increase the area of the tufts 3, thereby increasing the number of bristles planted in each tufts 3. Thus, when viewed from the whole head of the toothbrush, The number of bristles to be planted per unit area of the high-density tufts 1 is more than that of the low-density tufts 2, so that the high-density tufts 1 are formed to be distinguished from the low-density tufts 2. In this case, the high-density hair transplanting part 1 is formed at the front end of the head, and can exhibit the proper tooth pressure for molar cleaning, and the deformation of the bristles in the front end of the head more easily than the rear end occurs. By improving the durability of the bristles can be improved. In particular, as shown in Figure 2, in the high-density tuft portion 1 to the bristle is densely planted by the hole spacing (a) between the adjacent tuft hole (3) 0.6 mm or less, wherein the bristle hole (3) The shape may include all shapes such as a circle, a rectangle, a hexagon, and the like, and more preferably, a rectangular tuft hole having a horizontal hole length (b) of 1 to 2 mm and a longitudinal hole length (c) of 1 to 2 mm. It can form in (3).

The bristles planted in the high-density hair transplanting part 1 may be bristles having a general circular cross section, bristles having a rectangular cross section, bristles having a rhombic cross section, embossed bristles, or mixed bristles thereof. The bristles planted in the section 2 may be bristles having a normal circular cross section, bristles having a rectangular cross section, bristles having a rhombic cross section, embossed bristles or mixed bristles thereof.

The bristles can be molded from synthetic resins, such as nylon or polybutylene terephthalate (PBT), and in particular embossed bristles can be molded from nylon.

The material of the toothbrush is polypropylene (PP), polyethylene terephthalate (PETG), acrylonitrile styrene copolymer (AS), cellulose propionate (CP), acrylonitrile-butadiene-styrene copolymer which is a conventional plastic material (ABS) and the like can be used.

In the above description, bristles having a circular cross section, bristles having a rectangular cross section, and bristles having a rhombic cross section are all divided according to the shape of the cross section of the bristles, and those skilled in the art have all the bristles as shown in FIG. It is in the form of a straight line without bending, and shows a constant contact area and plaque removal effect on the teeth.

On the other hand, the embossed bristle, as shown in Figure 4, refers to the bristles in the form of several to several dozen embossed (embossing) on the side of the bristles. These embossed bristles have a particularly good abrasive action which provides a large contact area to the tooth surface and an excellent plaque removal effect, thus enabling effective tooth brushing.

In order to have the configuration as described above, a high density hair transplantation part 1 is formed at the front end of the toothbrush head, which occupies an area of 10 to 40%, and at the rear end of the toothbrush head, which occupies an area of 60 to 90%, As with the toothbrush, a low density tuft 2 can be formed. The low-density hair transplanter 2 is planted in parallel with conventional bristles, square bristles, rhombus bristles, etc., in a circular tuft hole 3 having a diameter of 1 to 2 mm. Therefore, together with the molar plaque removal effect and the tooth surface plaque removal effect of the high density hair removal part (1), the low density hair removal part (2) enables the plaque removal and the gum massage function of the interdental part, and the polishing effect on the whole head and the large area Toothbrushing effect, the effect of improving the durability of the bristles, interdental plaque removal effect and the gums massage effect can be simultaneously satisfied.

Hereinafter, preferred embodiments and comparative examples of the present invention will be described.

The following examples are intended to illustrate the invention and should not be understood as limiting the scope of the invention.

A comparative evaluation experiment was conducted for the consumer evaluation of the usability of the toothbrush having the high density bristles 1 and the existing toothbrush according to the present invention, the evaluation of the brittleness (deformation) of the bristles, and the plaque removal effect as follows.

Examples and Comparative Examples 1 and 2

Toothbrushes having a dense hair transplanter 1 according to the present invention were prepared in the Examples as shown in Table 1, and toothbrushes were prepared in Comparative Examples 1 and 2, respectively, as a control and a control group.

division Example Comparative Example 1 Comparative Example 2 Head shear Embossed bristle Embossed bristle Round hat Head rear end Embossed Bristle + Round Bristle (3: 7) Round hat Round hat Shape of the seedling hole 3 Square (1.7mm * 1.7mm) Round (1.7mm in diameter) Round (1.7mm in diameter) Hole spacing (a) 0.6 mm 0.9 mm 0.9 mm

Experimental Example 1 Experimental Evaluation of Consumer's Usability

Evaluation of the usability of the toothbrush used in the Examples and Comparative Examples was evaluated by the following evaluation method.

The toothbrushes of the Examples and Comparative Examples were used for 30 panelists for 15 days, and then the average value was measured using the 5-point comparison method through the comparison panel test. The results are shown in Table 2 below. Shown in The evaluation criteria of the 5-point comparison method of preference are as follows.

Evaluation standard

5: very good, 4: good, 3: normal, 2: bad, 1: very bad

Usability preference Example Comparative Example 1 Comparative Example 2 Molar plaque reduction effect 4.2 3.1 3.0 Tooth plaque reduction effect 3.9 3.9 2.9 Cleaning feeling after brushing 3.8 3.2 3.0 Gum massage effect 3.8 3.7 3.5 Overall satisfaction 4.0 3.5 3.1

As shown in the results of Table 2, in the case of Examples, it was found to be superior in terms of molar plaque reduction effect, tooth plaque reduction effect, cleaning feeling after brushing, gum massage effect and overall satisfaction as compared to the comparative examples.

Experimental Example 2: Comparative evaluation experiment for the brittleness (deformation) of the brush head

The flaking evaluation of the toothbrush manufactured according to the above Examples and Comparative Examples was evaluated in the following manner. After measuring the width of the initial bristles on the front end of the bristles of the toothbrushes of the Examples and Comparative Examples, a test toothbrush was mounted on an automatic tooth brushing device designed to apply a load of 500 g. Put the experiment toothbrush on the stainless steel plate made in the shape of the tooth shape of the tooth, put the toothpaste slurry solution mixed with toothpaste and water 2: 1, and perform the automatic reciprocating movement 5,000 times. Friction. After washing the toothbrush after the reciprocating movement and drying it with water, the width of the bristles caused by the reciprocating movement was measured by the physical magnification measuring device. It is shown in Table 3 below.

% Gap = (brush width after test-brush width before test) / brush width before test

division Example Comparative Example 1 Comparative Example 2 Punishment (%) 5.0 ± 0.3 8.8 ± 0.5 9.2 ± 0.4 * The lower the number, the less open

As shown in Table 3, in the case of the toothbrush having the high-density hair transplantation part 1 according to the present invention, the gaping was found to be significantly less than that of the comparative examples with a value of about 5%. It can be seen that the durability of the more excellent.

Experimental Example 3 Comparative Evaluation Experiments for Plaque Removal Effect

When toothbrushes were prepared using toothbrushes prepared in Examples and Comparative Examples, the plaque index reduction effect was evaluated in the following manner.

Thirty clinical subjects were selected and 10 patients each had the toothbrushes of Example, Comparative Example 1, and Comparative Example 2 used for 30 days, and then, 14 days after the first day of the experiment, the percentage reduction in the prag index after 30 days was obtained. It was measured, and the results are shown in Table 4 below.

division Reduction Rate (%) Example Comparative Example 1 Comparative Example 2 14 days later 4.3 ± 0.3 2.9 ± 0.2 1.6 ± 0.3 30 days later 8.7 ± 0.2 5.9 ± 0.3 3.7 ± 0.1

As shown in Table 4, the toothbrushes of the comparative examples of the toothpaste reduction rate of the tooth surface after 30 days of use is 5.9% and 3.7%, while the toothbrush prepared in the embodiment of the present invention has a value of 8.7% It was confirmed that the effect is more excellent.

Toothbrush having a high-density tuft part 1 according to the present invention mentioned above, the shape of the tuft hole 3 of the high-density tuft part 1, the spacing between the tuft holes 3, the number of tuft holes 3, bristles Depending on the relationship between the shape and the like may have a slight difference in the durability and plaque removal effect.

Therefore, the present invention not only has excellent overall brushing effect in use for molar plaque reduction effect, tooth surface plaque reduction effect, improvement of cleaning feeling, etc., but also less bristle of bristles, thereby providing an excellent toothbrush durability. There is.

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, and such modifications and modifications are within the scope of the appended claims.

Claims (4)

In a toothbrush comprising a toothbrush head with a bristles, a handle, and a connection part interconnecting them, square hair transplanting holes having a length and width of 1 to 2 mm each at the front end of the toothbrush head have a spacing of 0.6 mm or less (a) is arranged to have a bristle bundle consisting of embossed bristles or a mixture of embossed bristle and embossed bristles in each of the square tuft holes, the tuft area of the bristle bundle is the total seedling area of the toothbrush head Toothbrush having a high density hair transplant, characterized in that occupies 10 to 40% of the. delete delete delete