KR100405573B1 - Toothbaush with adhesive brush and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a toothbrush and a manufacturing method thereof.

In the toothbrush is formed of the head and the handle, a plurality of insertion grooves are formed on the upper surface of the head so that a plurality of bristles are embedded in each insertion groove,

By providing a toothbrush and a method of manufacturing the same to each of the insertion grooves to form an adhesive portion by adhering the bristles to the elastic rubber adhesive having elasticity, the bristles protrude to the upper portion of the adhesive portion,

Long-term use of the toothbrush prevents bristles, warpage or dropping of the bristles, thereby extending the life of the toothbrush and contributing to the improvement of dental health.

Description

Toothbrush with adhesive portion formed on the brush head and manufacturing method thereof {Toothbaush with adhesive brush and manufacturing method

The present invention relates to a toothbrush and a method for manufacturing the same, in particular by bonding with an elastic material to expose only the upper part of the bristles, to prevent the bristle or open during use to maintain a healthier teeth and help economically It relates to a toothbrush formed with an adhesive portion to one bristle and to a manufacturing method thereof.

Toothbrushes today, used by six billion people around the world, are common to all regions and cultures.

Toothbrushes are used to prevent diseases of the teeth and gums or to improve the oral environment that is bad breath and blemishes, and they are used by almost everyone regardless of the amount of East-West or high standard of living. to be.

Such a conventional toothbrush is formed by inserting a plurality of bristles made of synthetic resin, chemical fibers or animal hair, respectively, into a plurality of insertion grooves formed in the head portion formed by the handle and the head.

However, in the conventional toothbrush of the above configuration, the bristles that have been planted in the insertion grooves are not firmly fixed, and thus, the bristles may not be used due to a phenomenon such as opening or falling out of the bristles during use.

In order to solve this problem, the bristles are used to prevent bridging by using very bristles as bristles. However, this causes severe wear on the teeth and damages the gums, thus detrimental to the health of the teeth. This was a badly occurring problem.

In addition, the cleaning and massage action of the toothbrush is maximized when the area of the cross-section formed by the bristles of each brush is maximized, and when one or two strands are opened in different directions, the cross-section of the bundle is loosened and the individual protruding into several places. Brush heads are facing in different directions, so when you use it, the cleansing action is lowered and the gums are damaged.

Therefore, toothbrush manufacturers or dentists recommending the use of the toothbrushes have a problem in that economic waste occurs because when the bristles are opened or bent, it is recommended to purchase a new toothbrush in consideration of the health of the teeth.

The present invention has been made to solve the above problems,

By adhering with a rubber-based adhesive having elasticity so that only the upper part of the bristles inserted into the insertion grooves is exposed, prolonging the service life of the toothbrush by preventing the bristles of the bristles, bending or falling out even when the toothbrush is used for a long time, It is an object of the present invention to provide a toothbrush formed with an adhesive portion on the bristles to greatly contribute to the health of the teeth and a method of manufacturing the same.

1 is a perspective view of the present invention.

Figure 2 is an exploded perspective view showing a manufacturing method of the present invention.

Figure 3 shows a manufacturing method using the adhesive jig of the present invention, Figure 3a is an exploded perspective view before installing the adhesive jig, Figure 3b is a perspective view of the adhesive jig installed state, Figure 3c by installing the adhesive jig It is a perspective view which shows the state which removed after filling an adhesive agent.

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

1: head 2: handle

3: brush head 4: adhesive part

5: insertion groove 6: adhesive jig

7: glue filling hole

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of the present invention.

In the toothbrush formed of the head (1) and the handle (2), a plurality of insertion grooves (5) are formed on the upper surface of the head (1) in which a plurality of bristle (3) is embedded in each insertion groove (5) ,

Each of the insertion grooves 5, the embedded bristle 3 is bonded with a rubber adhesive having elasticity to form an adhesive portion 4, the bristle 3 is to protrude to the upper portion of the adhesive portion (4).

Toothbrush manufacturing method as described above, as shown in Figure 2, the cutting step of cutting the bristle 3 to a predetermined length;

An adhesive step of bonding and cutting the bristle bristle 3 with an elastic adhesive, the amount of which is inserted into the insertion groove 5 formed in the toothbrush head 1;

An insertion process of inserting and fixing the bundled bristle bristle bundles 3 into the plurality of insertion grooves 5;

It is made of a finishing process of rounding the upper end of the inserted bristle (3).

Another manufacturing method of the toothbrush as described above, the bristle (3) insertion process for inserting and fixing a bundle of bristle (3) in a plurality of insertion grooves (5) formed in the toothbrush head (1) as shown in Figure 3a;

A jig installation step of attaching a bonding jig 6 having a plurality of adhesive filling holes 7 into which a bundle of inserted bristles 3 is inserted, to the head 1 of the toothbrush;

An adhesive filling step of filling an adhesive having elasticity in the space between the adhesive filling hole 7 of the adhesive jig 6 installed therein and the bristle 3 inserted therein;

When the adhesive filled in the adhesive filling hole 7 is solidified to form the adhesive part 4, the jig removal process of removing the adhesive jig 6 is performed.

Toothbrush of the present invention prepared as described above is to bond the bristles inserted in the bristle head portion with an adhesive having elasticity for each bundle to form the adhesive portion 4 so that only the upper portion of the bristles 3 is exposed, the bristles during use of the toothbrush ( 3) can prevent the phenomenon of opening or falling out.

Hereinafter, the operation and examples of the present invention will be described in more detail.

First, the adhesive used in the present invention should have the following properties.

First, it should not be harmful to the human body at all and have excellent adhesion.

Second, after adhesion, the adhesive part 4 maintains high elasticity and does not break, and it should be excellent in recoverability.

Third, the bonding process should be applicable as it is in mass production and the cost should be low.

Fourth, the aesthetic appearance should be good and should not deteriorate the function of the toothbrush.

Fifth, to prevent the growth of bacteria, easy to remove moisture, food should not stick easily.

Sixth, even when the non-bonded portion of the top of the bristles is worn, the adhesion is maintained as it is, the adhesive force is gradually released from the upper side of the adhesive portion should be able to slowly loosen the adhesive portion.

In order to fully satisfy the above conditions, the vulcanization (crosslinking) process of various rubber materials developed to date should be appropriately applied.

All rubber materials have to undergo vulcanization (crosslinking) process to become rubber elastomers having rubber-like elasticity. And most of the rubber is often shipped as raw material rubber in the form of liquid or emulsion.

Since most of these rubbers are bonded to other materials during the vulcanization process, it is necessary to use the property of adhering with the surrounding materials in the vulcanization process using raw material rubbers in liquid, emulsion, or gel before vulcanization.

However, most rubber vulcanization has a problem that a method for promoting a reaction such as heat should be used.

Therefore, since synthetic resins such as nylon or PBT used as bristles have a melting point of 60 to 110 ° C., the temperature in the bonding process should be seriously considered depending on the material of the bristles.

Considering the above, the most suitable adhesives in the present invention are as follows.

Room Temperature Valcanizing Silicone Rubber: It has a crosslinking agent (vulcanizing agent) added to the rubber raw material. When it is exposed to air, it reacts with moisture in the air and mixes a one-component type and a separate crosslinking agent. There are two-component types that begin to harden instantaneously, and there are various types of viscosities, from low viscosity liquids to high viscosity pastes, depending on the type of raw material mixture.

Acetate type, oxine type, alcohol type, etc. are developed and used for 1-component type | mold, and there are many types of 2-component type according to a polymer and a crosslinking agent.

Liquid rubber: It is a raw material rubber which is liquid at room temperature and has a molecular weight of 2,000 ~ 10,000, and is stabilized by attaching functional groups such as -OH, -SH, -NH ₂ , -COOH, -NCO, -BR at both ends of the polymer. In most cases, heat is required to crosslink.

The functional chain in the fusion reacts with a suitable functional group to extend the main chain or to form a yellow film structure that causes crosslinking and solidify it.

Liquid rubber can be easily mixed with various compounding agents such as fillers and crosslinking agents, and is suitable for products vulcanized by injection molding.

Almost all natural and synthetic rubbers have a liquid phase.

NR, SBR, IR, CR, IIR, EPM, EPDM and special rubbers NBR, silicone rubber (Q), FRM, CSM, CM, T, urethane (Au, Eu), acrylic rubber (ACM, ANM, CO, ECO, etc.) ).

Latex and Emulsion Rubbers: These are generally rubbers dispersed in an emulsion state in a water-based liquid.

Natural rubber latex, SBR latex, nitrile rubber latex, chromopolene rubber latex, BR latex, IR latex, UP latex, MBR latex and NBR latex. It is especially useful as a polymer of an adhesive.

Referring to the method of forming an adhesive portion on the bristles using the adhesive as described above,

Typical method of brushing the bristles on the brush head is to put the appropriately cut and brushed bristles with a suitable number of metal slices and place them in the pre-installed holes so that the bristles can be planted. That's the way.

At this time, the bristle bundle is planted while being folded about half of the length, and the shim is usually cut back on the top to make the height constant.

As such, a so-called rounding treatment for rounding the cut section when the secondary processing (cutting) is performed after hair removal or a method of thinning and dissolving one end of the bristles with chemicals in advance (so-called slim hair toothbrush) has been popular.

The hair-bonding method of hair bridging using a bristles to prevent hair strands from spreading or bending separately is to bond the pre-processed hair strands with the appropriate number of strands at the ends, and then bundle the bundles in the current way. Fold half of the length and plant it, and then process it secondarily.

Thus, this method results in all the bristle bundles of the toothbrush being half bonded.

In this method, the bristles may be glued together by a certain number in advance so that the rest of the processes can be operated as they are.

However, every bristle bundle splits into two. However, even if they split in two, if the hair strands on one side are completely glued, the splitting is not a flaw, but rather a more even distribution of the bundles can be more effective for plaque removal and gum massage.

Pre-gluing the processed bristles by the appropriate number of strands is simple.

Distribute the prepared bristles (usually around 32 mm in length) by the appropriate number of strands (usually 12 to 20 strands), and arrange them. It is a way to make a bristle bundle by pouring the glue.

Conveyor systems allow for rapid and rapid progress, which can be used to compensate for process defects that cause bristles to drift out of current production methods.

In the case of planting, the bundle of bristles bonded in this manner is planted as it is, and secondary processing (rounding processing such as rounding processing) may be performed.

At this time, it is necessary to pay attention to the hair removal action so that the metal piece can be folded well so that the adhesive that touches the base of the hair removal part does not interfere with the hair removal work.

In addition, the method of adhering the bristles after the hair transplantation is a method in which all of the bristle bundles of the toothbrushes are separately bonded before the toothbrush is manufactured and then packaged using the current toothbrush manufacturing process.

Before or after processing the tips of the brushed toothbrushes, insert the bristles of the toothbrushes that have been planted into the same lattice jig as the shape of the toothbrush placement plane of each toothbrush. You will be surrounded by the ball.

At this time, a suitable release agent should be applied to the jig in advance so that no adhesive is attached. Hot air is used to sufficiently infiltrate the adhesive, which is also applied in a heat vulcanizing manner to allow the adhesive (unvulcanized rubber) to cure more quickly.

When the adhesive penetrates into the bristle bundle and vulcanizes, the grid is separated.

This method can be more effective because it uses a toothbrush bristle device that is currently used around the world as it is, and adds a post-processing step.

As described above, the present invention bonds the bristle bundle inserted into the insertion groove with an adhesive of rubber material having elasticity so that only a part of the upper side of the bristle is exposed, and thus prevents the bristles of the bristles from being brittle or bent or missing even when the toothbrush is used for a long time. Prolonged the service life of the, as well as contribute to greatly promote the health of the teeth.

Claims (3)

In the toothbrush formed of the head (1) and the handle (2), a plurality of insertion grooves (5) are formed on the upper surface of the head (1) in which a plurality of bristle (3) is embedded in each insertion groove (5) , Each of the insertion grooves 5, each of the embedded bristle (3) is bonded with a rubber adhesive having elasticity to form an adhesive portion 4, characterized in that the bristle (3) protrudes to the upper portion of the adhesive portion (4) Toothbrush with an adhesive portion formed on the bristles. A cutting step of cutting the bristles 3 into a predetermined length; An adhesive step of bonding and cutting the bristle bristle 3 with an elastic adhesive, the amount of which is inserted into the insertion groove 5 formed in the toothbrush head 1; An insertion process of inserting and fixing the bundled bristle bristle bundles 3 into the plurality of insertion grooves 5; Method of manufacturing a toothbrush with an adhesive portion formed on the bristles, characterized in that the finishing step of rounding the top of the inserted bristle (3). A bristle 3 insertion step of inserting and fixing a bundle of bristle 3 into a plurality of insertion grooves 5 formed in the toothbrush head 1; A jig installation step of attaching a bonding jig 6 having a plurality of adhesive filling holes 7 into which a bundle of inserted bristles 3 is inserted, to the head 1 of the toothbrush; An adhesive filling step of filling an adhesive having elasticity in the space between the adhesive filling hole 7 of the adhesive jig 6 installed therein and the bristle 3 inserted therein; A method of manufacturing a toothbrush with an adhesive part formed on an bristle, characterized in that the jig removal process of removing the adhesive jig (6) is performed when the adhesive filled in the adhesive filling hole (7) is solidified to form the adhesive part (4).