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A kind of toothbrush bristles with hydrophobicity and toothbrush including the same

A hydrophobic, toothbrush technology, applied in the field of toothbrush bristles, can solve the problem of prolonging the time for toothbrush hair to maintain a wet state, and achieve the effects of superior bacterial inhibition, inhibition of bacterial reproduction, and reduction of residual moisture

Active Publication Date: 2017-10-31
LG HOUSEHOLD & HEALTH CARE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the past, the commonly used toothbrush bristles consisted of nylon or polybutylene terephthalate, and the toothbrush hairs comprising such nylon or polybutylene terephthalate remained in the toothbrush after brushing for 2-5 minutes. The water on the toothbrush is completely absorbed by the bristles, so that the bristles remain wet for a long time, thereby providing sufficient time for bacteria to multiply.

Method used

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  • A kind of toothbrush bristles with hydrophobicity and toothbrush including the same
  • A kind of toothbrush bristles with hydrophobicity and toothbrush including the same
  • A kind of toothbrush bristles with hydrophobicity and toothbrush including the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Monolayer Structure Hydrophobic Toothbrush and Production of a Toothbrush Comprising the Hydrophobic Toothbrush

[0034] Perfluorocarbon (PFC) content is that the PFC solution of 30% by weight is mixed with the polybutylene terephthalate (PBT) of powder state (will contain the solution of the PFC of 30% by weight as the solute, compared with the whole PBT weight, mixed with the ratio of 8% by weight), prepared PBT particles containing the hydrophobic material PFC. The prepared PFC containing PBT particles and ordinary PBT particles were mixed at a weight ratio of 1:1 and put into the raw material inlet.

[0035] After heating, injection is carried out under general extrusion injection conditions, and it is passed through an extrusion injection molding machine. The pellets passed through the molding machine are given appropriate strength and tensile force through the stretching process and the cooling process, thereby producing toothbrush bristles containing hydrophobi...

Embodiment 2

[0036] Hydrophobic effect measurement of toothbrush hairs containing hydrophobic components

[0037] In order to evaluate the hydrophobic effect of the toothbrush bristles produced in Example 1 above, water droplets were dropped after the toothbrush bristles were evenly arranged, and the contact angle (°) between the water and the toothbrush bristle surface was measured over time. The results are shown in Table 1 and figure 1 .

[0038] At this time, as a comparative example, ordinary ordinary nylon toothbrush bristles (DuPont) were used.

[0039] Table 1

[0040]

[0041]As shown in Table 1 above, the hydrophobic toothbrush bristles of the present invention containing PFC as a hydrophobic component have a contact angle greater than 80° even after a lapse of time, and thus can maintain a hydrophobic state in which water is not absorbed by the toothbrush bristles. sex. On the contrary, nylon toothbrush bristles, which have been used the most as toothbrush components in ...

Embodiment 3

[0043] Measurement of residual water content of toothbrush bristles containing hydrophobic components

[0044] In order to measure the amount of residual moisture in the toothbrush bristles when the toothbrush is handled and stored in the usual toothbrush treatment method after brushing teeth, the toothbrush bristles are fully soaked in distilled water for 10 seconds, dried 3 times, left at room temperature, and time passes Measured the residual moisture content (mg) in the toothbrush hair, its result is as table 2 and image 3 shown.

[0045] Table 2

[0046]

[0047] As shown in the above Table 2, the amount of moisture remaining in the toothbrush bristles after soaking in distilled water and drying three times was 55 mg in the hydrophobic toothbrush bristles containing PFC according to the present invention, but on the contrary, in the nylon toothbrush bristles was 316 mg, it can be seen that the residual water content of the hydrophobic toothbrush bristles containing...

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Abstract

The present invention relates to a toothbrush bristle having water-repellent properties and to a toothbrush comprising same. A toothbrush bristle comprising a water-repellent component, and preferably a perfluorocarbon, has water-repellent properties whereby water absorbency is markedly reduced, and thus can suppress the ability of microbes to propagate and consequently can prevent microbial infection within the mouth as not only is there a substantial reduction in the amount of water remaining in the toothbrush bristles but also there is a very fast water evaporation rate after tooth brushing. Also, the present invention provides a water-repellent toothbrush comprising such water-repellent toothbrush bristles.

Description

technical field [0001] The invention relates to a toothbrush bristle with water repelling force, that is, hydrophobicity, and a toothbrush comprising the toothbrush bristle. [0002] This application claims priority based on Korean Application No. 10-2013-0004369 filed on January 15, 2013, and all the contents disclosed in the specification and drawings of the application are incorporated herein by reference. Background technique [0003] The toothbrush plays the role of brushing away the bacteria in the oral cavity, so it is easy to be contaminated by bacteria, especially when there is water left in the toothbrush bristles, it will further promote the reproduction speed of bacteria. Therefore, in order to prevent the toothbrush from being contaminated by bacteria, it is especially important to wash the bristles of the toothbrush with flowing water several times after brushing, and dry it in a sunny place or a well-ventilated place to remove the remaining moisture. [0004]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A46D1/00A46D1/04
CPCA46B2200/1066A46D1/0207E04G7/20
Inventor 朴美静金圣珍安宰贤
Owner LG HOUSEHOLD & HEALTH CARE LTD
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