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Method for Manufacturing Bristles on Toothbrush and Toothbrush Using Same

Inactive Publication Date: 2015-09-17
BRITISH BROADCASTING CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0074]A toothbrush manufactured by a method for manufacturing bristles on a toothbrush according to the present invention has a core-sheath double structure and various cross-sectional shapes, has uneven portions formed on a surface thereof by a tapering process while containing inorganic particles, thereby making it possible

Problems solved by technology

In general bristles on a toothbrush as described above are mainly manufactured using nylon or polyester as a raw material, wherein the nylon bristles on a toothbrush have advantages such as suitable elasticity and flexibility but have disadvantages in that a life time thereof is short due to a high absorption property, the nylon bristles on a toothbrush should have a predetermined thickness or more due to low strength, and since it is impossible to perform a processing process such as a tapering process, or the like, penetration between the teeth or between the gums and teeth is low, such that it is difficult to completely remove tartar, food residue, or the like.
Further, in the case in which polyester-based bristles on a toothbrush are not tapered, while elasticity is large, flexibility is deteriorated, such that the gum of a user may be easily hurt, and in the case in which the polyester-based bristles on a toothbrush are tapered, penetration and flexibility are excellent but removal of tartar, or the like, may be deteriorated.
As another disadv

Method used

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  • Method for Manufacturing Bristles on Toothbrush and Toothbrush Using Same
  • Method for Manufacturing Bristles on Toothbrush and Toothbrush Using Same
  • Method for Manufacturing Bristles on Toothbrush and Toothbrush Using Same

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0101]2 Kg of polybutylene terephthalate (PBT) having a weight average molecular weight of 75,000 as a core part forming material and 2 Kg of nylon 6,12 having a weight average molecular weight of 40,000 as a sheath part forming material were prepared, and 80 g of calcium carbonate (Kwangsung Chemical) having an average diameter of 10 μm as an uneven portion forming material and 80 g of polyhexamethylene guanidine phosphate (Guacil TX, SK chemical) as an antimicrobial material were prepared and added to and mixed with the core part forming material and the sheath part forming material at a weight ratio of 5:5, respectively. The core part forming material was put into a first extruder having a temperature of 260° C., and the sheath part forming material was put into a second extruder having a temperature of 250° C., and then mixed in a composite die, such that a filament was discharged through a spinneret. The spinneret had a circular shape, and a core-sheath type filament was manufa...

example 2

[0103]A filament bundle was manufactured using the same process and conditions as in Example 1 except that a shape of the spinneret was a dodecagonal shape 30. Antimicrobial activity of the manufactured bundle was measured and shown in Table 1 and usability of a toothbrush manufactured by implanting the manufactured bundle was measured and shown in Table 2.

example 3

[0104]A filament bundle was manufactured using the same process and conditions as in Example 2 except for using 2 Kg of polyethylene terephthalate (PET) having a weight average molecular weight of 40,000 as the core part forming material. Antimicrobial activity of the manufactured bundle was measured and shown in Table 1 and usability of a toothbrush manufactured by implanting the manufactured bundle was measured and shown in Table 2.

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Abstract

A method for manufacturing bristles on a toothbrush and a toothbrush using the same are provided, in which the bristles on a toothbrush have a core-sheath double structure and various cross-sectional shapes, have uneven portions formed on a surface thereof by a tapering process while containing inorganic particles, and include inorganic or organic antimicrobial materials.

Description

TECHNICAL FIELD[0001]The present invention relates to a method for manufacturing bristles on a toothbrush and a toothbrush using the same.BACKGROUND ART[0002]A toothbrush is a representative tool used in order to clean the mouth including teeth and gums. In general, the toothbrush is composed of a handle and bristles on the toothbrush, wherein the bristles on the toothbrush are manufactured using a synthetic resin having elasticity. In general bristles on a toothbrush as described above are mainly manufactured using nylon or polyester as a raw material, wherein the nylon bristles on a toothbrush have advantages such as suitable elasticity and flexibility but have disadvantages in that a life time thereof is short due to a high absorption property, the nylon bristles on a toothbrush should have a predetermined thickness or more due to low strength, and since it is impossible to perform a processing process such as a tapering process, or the like, penetration between the teeth or betw...

Claims

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Application Information

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IPC IPC(8): A46D1/04A46D1/00
CPCA46D1/04A46D1/006A46D1/0238A46D1/023A46D1/0207A46D1/0261A46D1/0276A46B2200/1066D01D5/253D01F1/10D01F8/12D01F8/14
Inventor KANG, KI-TAEO, GUIHWANKANG, YEON-BOK
Owner BRITISH BROADCASTING CORP