KR101325467B1 - Toothbrush having the timber tactility - Google Patents

Abstract

The present invention relates to a toothbrush handle handle, a neck portion connected to the handle portion, a toothbrush head portion of the neck portion, and a toothbrush comprising a brush portion formed by brushing the bristles of the head portion, the toothbrush handle handle, neck portion And it is characterized in that the toothbrush consisting of a head portion formed of a material containing a polymer resin and wood powder. The toothbrush according to the present invention has a similar appearance and texture to wood and has excellent moldability and physical properties as it includes a material prepared by using wood flour and a polymer resin in an appropriate ratio.

Toothbrush, wood texture, wood powder

Description

Toothbrush with wood texture {TOOTHBRUSH HAVING THE TIMBER TACTILITY}

The present invention relates to a toothbrush, and more particularly to a toothbrush having a toothbrush like the appearance and texture of wood.

Toothbrush in the toothbrush handle for gripping when brushing; Head part which is brushed bristles; And a neck portion connecting the handle portion and the head portion is integrally formed by injection molding, and generally polypropylene resin, polyethylene resin, ABS resin, SAN resin, polyester resin (PCTA resin, PCTG resin, PET resin, etc.), Polymer resin materials selected from the group consisting of ionomer resins, polystyrene resins, and TPE (thermoplastic elastomers, SEBS, EPDM, SBS, etc.) resins are used.

At this time, the color of the toothbrush is used to impart a color, or pearl is added to give a shiny texture. Recently, the toothbrush is molded with gold or silver plating. It is used to have a similar appearance to the metal texture by performing a separate process, but there is a limit to the natural texture implementation other than the plastic texture or metal texture with this method.

In order to realize a natural texture, a method of imparting wood texture to a toothbrush bar has been proposed. For example, a method of laminating a wood pattern film to a molded toothbrush bar by transfer printing or lamination, etc. has been introduced. After the formation, there is a disadvantage to add a transfer printing or lamination process, and due to the complexity of such a process, due to the increase in defect rate, increase in raw material cost, etc., there is a limit to apply to mass production.

The present invention is to solve the problems of the prior art as described above, it is an object to provide a toothbrush having an appearance and texture similar to wood and at the same time excellent in moldability and physical properties.

In order to achieve the above object, the present invention is the whole or a part of the toothbrush injection-molded with a composition containing 5 to 75 parts by weight of wood powder (100 parts by weight of the polymer resin) (for example, handle, neck or head) It provides a toothbrush having.

In addition, the present invention is a conventional polymer resin, for example, polypropylene resin, polyethylene resin, ABS resin, SAN resin, polyester resin (PCTA resin, PCTG resin, PET resin, etc.), ionomer resin, polystyrene resin, TPE ( Thermoplastic elastomer, SEBS, EPDM, SBS, etc.) resin forms the core (core) in all or part of the toothbrush bar, and the material produced by containing 5 to 75 parts by weight of wood powder based on 100 parts by weight of the polymer resin surrounds the core. Provides a toothbrush that forms a perimeter. At this time, the material of the peripheral portion may occupy about 1 to 99%, preferably 5 to 75% of the diameter of the entire toothbrush bar.

According to the present invention, the toothbrush handle handle portion, the neck portion and the head portion comprising the polymer resin and wood powder integrally or partially form the toothbrush rod through injection molding, and the nylon bristles of the bristle material commonly used in the head portion ), Polyester wool, polypropylene wool, synthetic resin wool, or pig hair, wool, wool or the like, or a mixture of two or more of the bristles, and the bristled bristles of the appropriate length and shape Trimming completes the toothbrush. At this time, if necessary, in order to minimize gum irritation and the like when brushing the end of the bristle round processing (Round cutting) or end rounding (end rounding) process may be performed.

The polymer resin may include a polymer resin commonly used in the art to which the present invention pertains, for example, polypropylene resin, polyethylene resin, ABS (acrylonitrile-butadiene-styrene) resin, SAN (styrene-acrylonitrile plastic) Resin, polyester resin (PCTA (poly (cyclohexylene dimethylene terephthalate), acid) resin, PCTG (poly (cyclohexylene dimethylene terephthalate), glycol) resin, PET (poly (ethylene terephthalate) resin, etc.), ionomer resin, polystyrene resin , TPE (thermoplactic elastomer, thermoplastic elastomer, styrene ethylene butylene styrene (SEBS), ethylene propylene diene monomer (EPDM), styrene butylene styrene, etc.) may include one or more selected from the group consisting of a polymer resin, It is not specifically limited to this.

The content of the wood powder is preferably 5 to 75 parts by weight, more preferably 20 to 50 parts by weight based on 100 parts by weight of the polymer resin. That is, in order to have a minimum texture of wood and a similar appearance to wood, the content of wood powder is preferably 5 parts by weight or more based on 100 parts by weight of the polymer resin, and in order to prevent the deterioration of formability and processability due to the excessive content of wood powder. The content of wood flour is preferably included below 75 parts by weight.

The wood powder is not particularly limited in its formulation and components, but it is preferable to use pine, maple or oak powder having an average particle diameter of 10 to 5000 um.

On the other hand, the toothbrush according to the present invention can be manufactured using a molding method commonly used in the art. For example, as a method of injecting wood powder in molding the toothbrush bar, a method of directly melting and mixing wood powder into a polymer resin, or a method of mixing and mixing a wood resin compound resin and a wood powder-free resin It is available. In this case, the polymer resin that can be used when preparing the compound resin melt-kneaded with wood powder may use the above-mentioned polymer resin commonly used, and may use the same or different polymer resin as the resin containing no wood powder mixed and molded. In particular, it is preferable to use the same resin in consideration of compatibility, but is not limited thereto. Additionally, in order to improve grip when using the toothbrush, a TPE commonly used on the toothbrush surface may be further formed.

In addition, the molding method of the toothbrush stand may be different according to the method of hair transplanting using heat fusion without the flat line and the flat hair using a flat line commonly used in the method of the toothbrush according to the present invention. In the case of a toothbrush following the flat hair transplanting method, the toothbrush handle, the neck, and the head are integrally injection molded, and the bristles are implanted into the head. Toothbrush handles, necks and toothbrush heads having a planted head plate receiver are molded respectively, and the head plate for planting can be molded to combine the toothbrush rod and the planted head plate to complete the toothbrush.

As described above, the toothbrush according to the present invention has an appearance and texture similar to wood and has excellent moldability and physical properties by having a toothbrush formed of a polymer resin containing wood powder.

Hereinafter, preferred examples and comparative examples are provided for the understanding of the present invention. However, the following examples are intended to illustrate the present invention without limiting it thereto.

Example  One

Melt-kneaded 40 parts by weight of wood powder with respect to 100 parts by weight of polymer resin (polypropylene: SEBS = 90: 10) to prepare a toothbrush rod which is integrally injection-molded with a toothbrush handle, neck part and head part. Toothbrushes were prepared via a short hair and roundcutting process.

Example  2

It prepared in the same manner as in Example 1 except that 20 parts by weight of wood powder was used based on 100 parts by weight of polymer resin (polypropylene: SEBS = 90: 10).

Comparative Example  One

Except for using wood powder, 100% polypropylene resin was used in the same manner as in Example 1.

< Experimental Example  1> wood texture evaluation of toothbrush

Sensory evaluation of the wood texture of the toothbrush prepared in Examples and Comparative Examples was carried out on a five-point scale of 35 people, the average value after the evaluation according to the evaluation criteria of Table 1 below is shown in Table 2.

division Very bad Poor usually good Very good score One 2 3 4 5

< Experimental Example  2> moldability and processability

In the process of injection molding the toothbrush rods of Examples and Comparative Examples, the surface condition of the toothbrush rod, unformed and burr formation were evaluated, and when the surface condition of the toothbrush rod was good and the unmolded and burr did not appear, 'good', the surface state was If it is poor and the unmolded or burr is severe, it was judged as 'bad'.

< Experimental Example  3> Mome  burglar

The bristle bristle frame strength of the toothbrush of the Example and the comparative example was measured 5 times based on KS3104 standard, and the average value of the value is shown in Table 2 below.

division Example 1 Example 2 Comparative Example 1 Wood texture 4.4 4.3 1.0 Formability and Processability Good Good Good Mother strength 2.1 2.3 2.5

As shown in Table 2, Examples 1 to 2 exhibited a moldability and processability and a mother strength of the equivalent level or higher than Comparative Example 1, and at the same time showed an excellent wood texture.

1 is a photograph of a toothbrush according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: toothbrush

11: toothbrush handle

12: toothbrush neck

13: toothbrush head

14: mother-in-law

15: brush head

Claims (3)

In a toothbrush comprising a toothbrush molded from a polymer resin containing wood powder, The toothbrush is a toothbrush, characterized in that it comprises 5 to 75 parts by weight of wood powder based on 100 parts by weight of polymer resin. delete The method of claim 1, The polymer resin is polypropylene resin, polyethylene resin, ABS (acrylonitrile-butadiene-styrene) resin, SAN (styrene-acrylonitrile) resin, polyester resin, ionomer resin, polystyrene resin and TPE (thermoplactic Elastomer) resin in the group Toothbrush, characterized in that any one or more selected.

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