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Toothbrush bristles made of polyketone material, and toothbrush including same

A toothbrush and polyketone technology, which is applied in the field of toothbrush bristles made of polyketone and toothbrushes including the bristles, can solve the problems of hair expansion and the like, and achieve the effects of reduced hair expansion, excellent wear resistance, and excellent elasticity

Pending Publication Date: 2019-05-03
LG HOUSEHOLD & HEALTH CARE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Especially for fine hairs made of polyester polymers such as PBT, because the tip of the toothbrush is gradually tapered, the phenomenon of hair expansion and wear occurs earlier, so the toothbrush needs to be replaced frequently

Method used

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  • Toothbrush bristles made of polyketone material, and toothbrush including same
  • Toothbrush bristles made of polyketone material, and toothbrush including same
  • Toothbrush bristles made of polyketone material, and toothbrush including same

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Experimental program
Comparison scheme
Effect test

Embodiment

[0058] 1. Comparison of physical properties of polyketone, nylon and PBT

[0059] As the resin material powder of toothbrush bristle material, nylon 612 (Dopont, Tynex), polybutylene terephthalate (PBT) (KOLON) or polyketone (Hyosung, M310U and M310U similar grade) were heated respectively, and The nozzles of the extrusion device were molded and extruded, cooled, and dried with hot air to produce toothbrush bristles with a diameter of 0.18 mm from each material.

[0060] (1) Tensile strength

[0061] The tensile strength, which can evaluate the rigidity of one bristle and the strength at which the bristle breaks, was measured after the bristle was manufactured, and compared with existing bristle materials nylon 612 and PBT.

[0062] Specifically, according to the ASTM D638 standard test method, after fixing both ends of a toothbrush bristle by a fixing device, stretch it along the axial direction of the test piece, and measure the force required for destruction, that is, th...

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Abstract

The present invention relates to toothbrush bristles made of a polyketone material, and a toothbrush including the same, and provides a toothbrush comprising toothbrush bristles made of a polyketone material having high rigidity, high elasticity, and excellent wear resistance such that bristle widening is reduced and the period of use is increased. According to the present invention, the toothbrush bristles manufactured by containing polyketone have excellent elasticity so as to be appropriate for removing plaque from the surfaces of teeth having a lot of curves, and particularly, when the bristles are manufactured as micro bristles, the bristles exhibit an excellent effect of removing interdental plaque, which could not be smoothly removed with conventional toothbrushes.

Description

technical field [0001] This application claims priority based on Korean application No. 10-2016-0125903 filed on September 29, 2016 and Korean application No. 10-2017-0089694 filed on July 14, 2017. All the contents disclosed in the drawings are cited in this application. [0002] The invention relates to toothbrush bristles made of polyketone material and a toothbrush comprising the bristles (Polyketone Bristles and Toothbrush Having the Bristles). [0003] More specifically, the present invention relates to a toothbrush bristle made of a polyketone material having high rigidity, high elasticity and high wear resistance so as to have reduced bristle expansion and increased lifespan and a toothbrush comprising the same. [0004] In addition, since the unit price of the polyketone material is lower than that of nylon or polyester polymers, especially polybutylene terephthalate (PBT), which are mainly used as toothbrush bristles, it is possible to provide toothbrushes at a lowe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A46D1/00A46B9/04D06M13/123
CPCA46B2200/1066A46D1/0207D01F6/26D01F6/96A46D1/0276A46B9/04D06M13/123A46D1/00D10B2331/061D01F6/02D01F6/30D10B2321/02Y10T428/2913
Inventor 朴美静河沅昊李京燮李钟勋柳慧珠
Owner LG HOUSEHOLD & HEALTH CARE LTD
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