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A technology of toothbrush and bristles, which is applied in the improvement field of toothbrush to achieve the effect of excellent use feeling
Active Publication Date: 2016-01-13
LION CORP
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Abstract
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[0018] As mentioned above, so far, there is no toothbrush that can make the penetration of the bristle tip to the neck of the tooth and the scrubbing property on the tartar coexist, and has an excellent feeling of use.
Method used
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Embodiment 1
[0099] The toothbrush in which the rectangular buffer part was formed in the substantially center of the width direction of a hair-implanted area, and the base end side was produced. In this toothbrush, regarding the arrangement of the tufting holes, the diameter of the tufting holes, the number of the tufting holes, the kind of bristles constituting the tufts, L1, L2, L1 / L2×100, L3, L4, and L3 / L4×100, As in Table 1. In addition, the distance between the tufting holes in the direction from the base end of the brush head to the top is 0.7 mm, the length of the bristles is 10 mm, and the thickness of the bristles is 7.5 mil.
Embodiment 2～12
[0100] Embodiment 2~12, comparative example 1~4:
[0101] In addition to making the configuration of the hair planting hole, the diameter of the hair planting hole, the number of the hair planting hole, the type of bristles forming the hair bundle, L1, L2, L1 / L2×100, L3, L4, and L3 / L4×100 are shown in Tables 1 and 2 , and 3 shown in change, other and embodiment 1 same toothbrush.
[0102] In addition, the bristles used in Example 5 are composed of a mixture of PBT and PET, and the mixing ratio thereof is PBT:PET=7:3.
[0103] The bristles used in Example 6 had a core-sheath double structure, the core had a radius of 76 μm, the sheath had a thickness of 19 μm, and the total diameter was 190 μm.
[0104] In the hair-bundle interval hair-planting part of Example 12, there is one end tapered hair.
[0105] About the toothbrush of each Example and each comparative example, the plaque removal property and usability were evaluated by the method described below. The evaluation resu...
Embodiment 13～23
[0131] Make the toothbrush whose hair-planting hole configuration, the diameter of the hair-planting hole, L1, L2, L1 / L2×100, L3, L4 and L3 / L4×100 are shown in Table 4.
[0132] Table 4:
[0133]
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Abstract
The present invention relates to a toothbrush, comprising: a brush head with bristles bundled with a plurality of bristles, and a handle extending from the brush head. At the top, 25% to 75% of the length of the hair-planting area is provided with a hair-bundle interval hair-planting portion, and in the hair-bundle interval hair-planting portion, the centerline of the hair-planting area is separated from the base end of the brush head to the top. Adjacent hair bundles are arranged at intervals of 15 to 70% of the length of the hair-implanted area in a direction perpendicular to the center line, and the hair bundles are separated from the area where the hair bundles of the hair-implanted part exist It opens toward the base end side of the brush head. According to the present invention, it is possible to provide a toothbrush that can achieve both penetration of the bristle tip into the neck of the tooth and scrubbing of plaque, and has an excellent usability.
Description
technical field [0001] The invention relates to an improvement of a toothbrush. [0002] This application claims priority based on Patent No. 2010-244013 filed in Japan on October 29, 2010, the contents of which are cited here. Background technique [0003] It is known that cleaning the neck of the tooth is important in order to prevent periodontal disease. In order to improve the cleaning performance of the toothbrush on the neck of the tooth, it is required that the top of the bristle enters the neck of the tooth to have a higher penetration, and the top of the bristle entering the neck of the tooth has a higher scratching ability on the tartar. [0004] A toothbrush using bristles whose bristle tips are sharpened is known as a toothbrush having a high penetrating property of the bristle tip to the neck of the tooth. In addition, there is known a toothbrush in which the pitch of the hair-planting holes for hair-planting the hair bundles is enlarged as a whole, and the ph...
Claims
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Application Information
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