TWI400050B - Washing chopsticks, manufacturing method of washing chopsticks, and resin imparting device - Google Patents

Description

Washing chopsticks, manufacturing method of washing chopsticks, and resin imparting device

The present invention relates to a washable chopstick which can be repeatedly washed, and more particularly to a washed chopstick which is excellent in washing durability of a resin imparted to a front end portion thereof. This finding also relates to the method of manufacturing the washed chopsticks. The present invention also relates to a resin imparting device for imparting a resin to a washed chopstick.

In countries where the food industry is the center, disposable disposable chopsticks are widely used, and the amount of wood used has risen to a large number. Moreover, in these countries, most of the wood used for the disposable chopsticks is supplied from abroad for supply.

However, in recent years, from the viewpoint of environmental protection, there has also been an action to restrict the export of wood, which is a raw material for disposable chopsticks, and there is a possibility that the production of disposable chopsticks will gradually decrease in the future.

Therefore, in the food industry, it is necessary to switch to chopsticks that can be reused after washing, that is, "washing chopsticks". This necessity is increasing.

The washing chopsticks are made of plastic (see Patent Document 1) and wooden washed chopsticks, and when the chopsticks are made of wood, it is necessary to impart water repellency to the washed chopsticks.

Therefore, many wooden chopsticks which are coated with a resin such as a synthetic resin to wash the surface of the chopsticks are manufactured.

Patent Document 1: Japanese Laid-Open Patent Publication No. 2006-158811

However, since the front end portion of the washed chopsticks is a portion that frequently comes into contact with or collides with other chopsticks or the like during the washing process, the resin applied to the distal end portion is worn or cracked due to friction, and is easy. The tendency to peel off. This is especially true in the case of washing with a washing device.

The wooden washed chopsticks are soaked in the resin, and the water is soaked from the resin to the washed chopsticks, and the part will swell or soften.

As a result, the washed chopsticks lose rigidity and become difficult to use.

Due to the foregoing, a cleaning chopstick in which the front end portion is formed into a curved surface is provided. The front end portion of the washed chopsticks is formed into a curved surface to minimize contact friction with other chopsticks.

As a method of forming the front end portion into a curved surface, as shown in Fig. 13(A), the front end portion of the chopstick body 100 for washing the chopsticks is processed into a circular shape, and a resin film 101 is formed on the surface thereof.

However, since the resin film 101 is provided only thinly along the periphery of the tip end portion, as shown in Fig. 13(B), the resin is peeled off from the resin 101 at the tip end portion, and a part of the surface 101A is exposed.

On the other hand, as shown in FIG. 14(A), the front end surface 12 of the chopstick body 100 is planarized, and a resin is formed in a hemispherical shape to form the resin block R.

However, as shown in FIG. 14(B), the resin block R thus formed tends to be detached from the distal end surface 12 as a whole when the tensile force in the axial direction of the chopstick body 100 is applied.

Further, as shown in Fig. 14(C), when the resin block R is applied with a force parallel to the distal end surface 12, the tendency of the resin block R to be detached from the distal end surface 12 by the shear force is also caused. .

As described above, in the conventional washed chopsticks, the durability of the resin applied to the front end portion of the chopstick body is not necessarily satisfactory.

The present invention is a developer capable of solving the aforementioned problems.

That is, it is an object of the invention to provide a cleaning chopstick which is not easily peeled off by the resin applied to the front end portion thereof, that is, is excellent in washing durability.

The inventors of the present invention have continued to study on the basis of the above-mentioned problems, and found that a small protrusion is formed at the tip end portion of the washed chopsticks, and a resin portion is formed around the small protrusion, thereby causing the resin portion to be aligned with respect to the shaft. The resistance to stripping in a direction perpendicular to the axial direction, and based on this finding, the present invention is completed.

That is, the washed chopsticks of the invention of claim 1 is a washing chopstick having a washing durability, and is characterized in that a hemisphere is formed around a small protrusion protruding from a front end surface of the wooden chopstick body. Resin portion.

The invention of claim 2, wherein the small projection is cylindrical and protrudes from the flat front end surface.

The invention of claim 3, wherein the surface of the resin portion is flush with the surface of the chopstick body.

The invention of claim 4 is the cleaning chopstick of the first aspect of the patent application, wherein the resin portion and the chopstick body form a resin film.

The method for producing a washed chopsticks according to the fifth aspect of the invention is the method for producing a washed chopstick having a washing durability, comprising the steps of: forming a small protrusion on a front end surface of the chopstick body; A step of forming a hemispherical resin portion around the protrusion.

The invention of claim 6 is the method for manufacturing the washed chopsticks according to the fifth aspect of the invention, wherein the step of forming the small protrusions on the front end surface of the chopstick body is to polish a part of the side surface of the chopstick body, and The chopstick body is reduced in diameter to form small protrusions.

The invention of claim 7 is the method for producing a washed chopsticks according to claim 5, wherein the step of forming a hemispherical resin portion around the small protrusions is performed by soaking the small protrusions of the chopstick body After the hard resin liquid is dried, it is dried to form a hard resin layer.

The resin application device according to the invention of claim 8 is a resin application device for applying a resin to the chopstick body, and is characterized in that the container body is provided with a resin for accumulating the resin applied to the chopstick body; the elongated rubber a plate for removing excess resin imparted to the body of the chopstick; and a fixing plate for slidably moving the rubber plate to the container body; and a hole formed in the fixing plate and formed in the rubber plate The cuvette body can be inserted by being placed coaxially with the access hole of the container body.

Further, as long as the object of the present invention is met, it is also possible to appropriately combine the constitutions of the first to eighth aspects of the aforementioned patent application.

In the cleaning chopstick of the present invention, a hemispherical resin portion is formed around the small protrusion protruding from the front end surface of the chopstick body. Since the resin portion is formed by strongly adhering the resin around the small protrusions, the contact area between the resin and the chopstick body becomes large, and it is extremely difficult to be separated from the front end portion.

That is, the washing chopsticks of the present invention have excellent washing durability.

Of course, the durability during use is also good.

Further, since the shape of the resin portion is hemispherical, the frictional force generated between the resin portion and other objects is reduced, and the resin portion is less likely to be detached from the front end portion of the cleaning chopstick of the present invention.

Further, since the resin portion is formed around the small projections, even if the axial force of the chopstick body or the force perpendicular to the axial direction (ie, the shearing force) is applied to the resin portion, the small projections exert a supporting force to prevent the resin. The part is detached from the front end face.

Further, when the surface of the resin portion and the surface of the chopstick body are set to the same surface, the continuity of the surface of the resin portion and the surface of the chopstick body is maintained without the fact that the article is caught. Therefore, the resin portion is prevented from being separated from the joint between the resin portion and the chopstick body.

[First Embodiment]

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

Fig. 1 is a schematic view showing the washing chopsticks of the embodiment. As shown in Fig. 1, the washing chopsticks A of the present embodiment are composed of a wooden chopstick body 1 and a resin portion 2.

On the front end surface 12 of the chopstick body 1, the cylindrical small protrusions 11 are integrally formed with the chopstick body 1. The resin portion 2 is a resin block formed by curing a resin into a hemispherical shape around the small protrusions 11.

The method of forming the resin into a hemispherical shape around the small protrusions 11 is, for example, applying a small amount of resin to the small protrusions 11.

By coating a small amount of resin, the resin is formed into a hemispherical shape around the small protrusions 11 due to the surface tension of the resin.

On the other hand, since the resin portion 2 is hemispherical, the frictional force or the collision force generated between the resin portion 2 and other objects is reduced. Therefore, the resin portion 2 is less likely to be detached from the front end portion of the chopstick body 1.

Fig. 2 is an enlarged perspective view showing the front end of the washing chopsticks of the embodiment. As shown in FIG. 2, since the resin portion 2 is formed to cover the small projections 11, the resin portion 2 exerts a strong fixing force against the force applied from each direction. Therefore, the resin portion 2 is extremely difficult to be detached from the distal end portion.

In other words, the contact area between the resin portion 2 and the chopstick body 1 is smaller than the contact area of the resin block R (see FIG. 14(A)) formed at the tip end of the conventional cleaning chopsticks and the chopstick body 100. A portion of the sidewall area of the protrusion 11.

Therefore, the resin portion 2 of the cleaning chopsticks A of the present embodiment is larger than the resin block R formed in the conventional cleaning chopsticks in the axial direction (longitudinal direction). Therefore, the resin portion 2 is less likely to be detached from the front end surface 12.

That is, the detachment as shown in the aforementioned Fig. 14(B) does not occur.

Since the resin portion 2 is formed around the small protrusions 11, even when a force is applied in a direction perpendicular to the axial direction (the direction of the distal end surface 12) (when a shear force is applied), the small protrusions 11 exert a supporting force to prevent the resin portion. 2's detachment.

Further, when the surface of the resin portion 2 and the surface of the chopstick body 1 are formed in the same plane, it is possible to prevent other objects from being caught by the segment portion 4 formed at the joint portion of the resin portion 2 and the chopstick body 1, due to the collision. The resin unit 2 is detached from the chopstick body 1.

On the other hand, as shown in Fig. 3, resin is applied to the surface of the chopstick body 1 and the resin portion 2 to form the resin film 3 on the surface of the chopstick body 1 and the surface of the resin portion 2, and the joint portion can be formed in the same plane. And completely covered.

Thereby, even if the surface of the chopstick body 1 and the surface of the resin portion 2 do not form the same plane, the segment portion 4 of the joint can be eliminated.

Here, the wood used as the material of the chopstick body 1 is wood such as rosewood, ebony, enamel, bamboo, fir, chestnut, willow, and Borneo. Moreover, from the viewpoints of workability and durability, it is particularly preferable to use Borneo Ironwood (Ulin) as the washing chopsticks A.

The resin used in the resin portion 2 is preferably non-toxic and relatively rigid. Among them, epoxy resins and polyester resins are preferred because of their low cost and quick-drying properties and high hardness after hardening.

Fig. 4 is a plan view showing the shape of the tip end of the washing chopsticks of the embodiment. As shown in FIG. 4, the small protrusions 11 are erected on the front end surface 12 of the chopstick body 1, and the diameter D1 of the small protrusions 11 is set to be shorter than the diameter D2 of the front end surface 12, and therefore, the sectional area is smaller than that of the chopstick body 1. The area of the front end face 12 is also small.

The cross-sectional area of the small protrusions 11 is preferably 5% or more of the area of the front end surface of the chopstick body 1 from the viewpoint of the shear resistance, and is preferably from the viewpoint of forming the hemispherical shape of the resin portion 2 30% or less.

Although the position at which the small projections 11 are formed may be at any position of the front end face 12, it is preferably formed at the center of the front end face 12.

When the small protrusions 11 are formed at the center of the front end surface 12, the shape of the resin portion 2 is more likely to form a uniform hemispherical shape than when the small protrusions 11 are formed at positions deviated from the center.

Further, when the length of the small protrusion 11 is larger than the radius of the front end surface 12, the shape of the resin portion 2 becomes a hemispherical shape having a higher height, and conversely, when the length of the small protrusion 11 is smaller than the radius of the front end surface 12, It is easy to become a hemisphere with a lower height. The length of the small protrusions 11 is appropriately determined in accordance with the above circumstances.

Fig. 5 is an explanatory view showing several modifications of the small projections. As shown in Fig. 5, the shape of the cross section of the small protrusion 11 is not limited, and may be a rectangle as shown in Fig. 5(A) or an angle shown in Fig. 5(B) (here, a triangular column) ), or the cross shape shown in Figure 5 (C).

However, as will be described later, the cross section is preferably circular from the viewpoint of the method of forming the small projections.

Further, from the viewpoint of preventing the resin portion 2 from falling off, as shown in Fig. 5(D), it is also preferable to use the small projections 11 in which the groove portions M are formed.

Next, a method of manufacturing the washed chopsticks of the present invention will be described. Fig. 6 is a flow chart showing an example of a method of manufacturing the washed chopsticks.

(Chopstick body forming step)

In the chopstick body forming step, the chopsticks system is cut out from the raw material, that is, the raw wood. And the cutting material is processed into a chopstick body having the same size as the finished product by cutting or cutting.

(small protrusion forming step)

In the small protrusion forming step, small protrusions are formed on the front end surface of the chopstick body formed in the previous chopstick body forming step.

The method of forming the small protrusions is not particularly limited, and for example, there is a method of reducing the diameter of the front end of the chopstick body.

Specifically, first, as shown in FIG. 7(A), the chopstick body 1 and the polishing means C such as a grinder are disposed.

Next, as shown in Fig. 7(B), the chopstick body 1 is rotated at a constant rotation speed.

The lapping means C is made to vertically contact the chopstick body 1 from the side of the front end face of the chopstick body 1, and only contacts the length of the small protrusion desired to be formed.

Then, when the polishing means C is continuously pressed against the chopstick body 1, the front end portion of the chopstick body 1 is continuously reduced in diameter.

After the small protrusions 11 are reduced in diameter to a predetermined thickness, as shown in Fig. 7(C), the polishing means C is separated from the chopstick body 1, and the formation of the small projections 11 is completed.

(Resin portion forming step)

In the present resin portion forming step, the chopstick body 1 in which the small projections 11 are formed is formed in a hemispherical shape at the tip end portion of the chopstick body 1.

The method of forming the resin portion 2 into a hemispherical shape is a method of inserting the resin liquid W into the wide-mouth container 5 and inserting the chopstick body 1 vertically from above into the resin liquid as shown in Fig. 8(A). .

In this method, the front end portion of the chopstick body 1 is inserted into the resin liquid W and immersed, and then pulled out and directly dried (see Fig. 8(B)).

Since the resin is dried, the resin adheres to the periphery of the small protrusions 11 and is formed into a hemispherical shape by the surface tension and hardens.

Although it is necessary to look at the type of the resin liquid, it is usually possible to adhere to the periphery of the small protrusions 11 by the operation of the resin once. Therefore, if the chopstick body 1 is inserted into the container 5 only once, the hemispherical resin is formed. Department 2.

The depth D1 of the resin liquid W stored in the wide-mouth container 5 must be at least longer than the length D2 of the small protrusions 11.

Further, after the resin is attached to the chopstick body 1, it is preferable to dry the chopstick body 1 in an environment of a predetermined temperature for a predetermined period of time.

Since the chopstick body 1 to which the resin is attached is dried, the resin is hardened while entering the surface structure of the small protrusions 11, so that the formed resin portion 2 becomes less likely to be separated.

Of course, the means for forming the resin into a hemisphere at the front end portion is not limited to this method.

After the resin portion forming step, a resin is applied to the entire chopsticks to coat the surface.

(resin coating step)

In the present resin coating step, a resin (coating) is applied to the entire cleaning chopsticks A by the resin portion 2 formed on the front end surface by the previous step, and the resin film 3 is formed.

Therefore, even in the resin portion forming step, the joint between the surface of the chopstick body 1 and the surface of the resin portion 2 does not form the same plane, and the segment portion 4 is formed therebetween, and the segment portion 4 can still be buried in this step. (Refer to Figure 3).

Next, a resin coating device for applying a resin to the surface of the chopstick body will be described.

Fig. 9 is a schematic view showing an example of a resin coating device. Fig. 10 is a view showing a cross section of the insertion portion of the chopstick.

As shown in Fig. 9, the resin coating device B includes a container body B1 for storing the resin liquid W applied to the chopstick body, and a long rubber plate B2 for removing excess material imparted to the chopstick body. The resin liquid W; and the fixing plate B3 are for slidably mounting the rubber sheet B2 to the container body B1.

The container main body B1 has a bottom surface B12 having an inverted roof shape extending downward from the side surface portion, and a foot plate portion B13 is suspended from the front surface portion B11 and the rear surface portion thereof.

By having such a pair of foot plate portions B13, the container body B1 is in a state of being lifted to a certain height from the ground.

In the front portion B11 of the container main body B1 (near the bottom surface B12 of the inverted roof shape in detail), the access hole S1 in which the chopstick main body 1 can be taken is formed (refer to FIG. 10). The access hole S1 is preferably provided at a lower position of the bottom surface B12 of the inverted roof shape.

The rubber sheet B2 is a long rubber sheet (synthetic rubber, raw rubber, etc.), and similarly to the container main body B1, an access hole S2 for inserting the chopstick body into the access hole S1 of the container body B1 is formed. Formed with a slightly smaller diameter.

The access holes S2 are formed in a plurality of intervals (for example, at intervals of 3 cm).

On the other hand, the fixing plate B3 also forms an access hole S3 having the same diameter as the inlet and outlet hole S1 of the container body B1.

The fixing plate S3 is attached to the container body B1 so as to press the rubber sheet B2 against the container body B1. Here, the inlet and outlet S1 of the container body B1, the inlet and outlet hole S2 of the rubber sheet B2, and the inlet and outlet hole S3 of the fixing hole B3 are disposed coaxially.

Now, the chopstick body 1 is passed through the access hole S3 of the fixing hole B3 and the inlet and outlet hole S2 of the rubber sheet B2, and inserted into the inlet and outlet hole S1 of the container body B1, and immersed in the resin liquid W accumulated in the container body B1 (refer to Fig. 10 ( A), Figure 10 (B)). After the chopstick body is inserted, pull out the chopstick body (refer to Figure 10 (C)).

At this time, the edge of the entrance/exit hole S2 of the rubber sheet B2 exerts an effect of removing excess resin adhering to the surface of the chopstick main body 1, and does not cause uneven coating when the chopstick body 1 is pulled out, and is uniformly coated. Resin.

After the resin liquid W is applied to the chopstick body 1, the resin is dried and hardened.

When the resin liquid is applied to a plurality of chopstick bodies, the insertion hole/hole S2 of the rubber sheet B2 is worn by the insertion/extraction operation of the chopstick body, and the diameter thereof is increased. Therefore, the inlet and outlet holes S2 must be replaced.

However, since a plurality of access holes S2 are formed at a certain interval in the rubber sheet B2, the rubber sheet B2 is slidably moved between the fixing plate B3 and the container main body B1, so that the unused one of the next entrance holes S2 is paired. The position of the access hole S1 of the container body B1 can cope with the aforementioned problems.

Further, the fixing tool N (the butterfly screw in the drawing) for fixing the fixing plate B3 to the container body B1 is adjusted to loosen the pressing of the rubber sheet B2, and the rubber sheet B2 is easily slid.

In addition, when the resin is continuously applied to a plurality of chopstick bodies, the resin liquid W is gradually consumed, and the liquid surface is lowered. However, since the position of the entrance hole S1 is disposed in the vicinity of the inverted roof-shaped bottom surface B12, the waste liquid can be disposed without waste. Run out of resin solution.

The above is the description of the resin coating device.

Further, the cleaning chopsticks of the present invention are manufactured in the following steps as follows: a chopstick body forming step → a small protrusion forming step → a resin portion forming step → a resin coating step, but other manufacturing methods may be employed.

For example, there is a method in which the resin is applied to the entire chopstick body before the formation of the small protrusions, and then the small protrusion forming step is performed after the chopstick body forming step.

At this time, when the segment portion 4 is formed at the joint between the resin portion 2 and the chopstick body 1, in order to eliminate the segment portion 4, as shown in Fig. 12, the resin coating step must be added again to form the resin film 3 The whole body of the chopsticks.

That is, the manufacturing method in this case is completed in order as follows: the chopstick body forming step → the resin coating step → the small protrusion forming step → the resin portion forming step → the resin coating step.

(Other embodiments)

The anti-slip function can also be applied to the front end of the chopsticks of the chopsticks A of the above-described embodiment by the following method.

1) A method of causing the resin portion 2 to contain a powder.

In this case, the resin portion 2 is formed by mixing the resin liquid W shown in the above-mentioned Fig. 8 (the dry lacquer is obtained by powdering, and the synthetic resin is made into powder).

The portion protruding from the surface of the resin portion 2 exerts an anti-slip effect.

According to this method, only the resin portion 2 can contain the powder.

Further, in order to exhibit an anti-slip effect, the resin film formed on the surface of the resin portion 2 is preferably thin.

2) A method of allowing the resin film 3 to contain a powder.

In this case, a resin (coating) containing a powder is applied to the surface of the resin portion 2.

Although the resin portion 2 does not contain powder, the resin film 3 formed on the surface of the resin portion 2 has an anti-slip function.

Further, from the viewpoint of the anti-slip effect, the powder diameter is preferably larger than the thickness of the resin film 3 (for example, several tens of μm to several hundreds μm).

When the resin coating apparatus shown in the above-mentioned Fig. 9 is used, the resin liquid W is mixed with a resin or the like in advance.

The present invention has been described above, but the present invention is not limited to the above embodiments, and various modifications can be made in the present invention.

For example, although the above embodiment is described as an example in which the cross-sectional shape of the chopstick body is circular, it may be changed to an elliptical shape or an angular shape.

Further, the front end surface on which the small projections are formed may be formed not only on the front end surface of the chopstick body but also on the front end surface on the opposite side.

Further, a method of reducing the diameter of the small protrusions may also be a method of compression molding.

Further, there is a drying operation in the manufacturing process, and the drying operation is carried out by a suitable method such as drying the chopstick body at room temperature or actively drying in a drying chamber.

Moreover, the resin used in the resin forming step and the resin coating step is appropriately selected from paints, synthetic resins, lacquers, glues, and the like.

Further, in the method of manufacturing the washed chopsticks shown in Figs. 6 and 11, the resin coating step may be further added as needed.

[Industry use possibility]

The present invention relates to a washable chopsticks which can be repeatedly washed, and more particularly to a washing chopstick which is excellent in washing durability of a resin imparted to a front end surface thereof, as long as the principle is applied, in addition to washing chopsticks Other types of chopsticks can also be applied, and their application fields are very wide.

1, 100. . . Chopstick body

2. . . Resin department

3, 101. . . Resin film

4. . . Segment

5. . . container

11. . . Small protrusion

12. . . Front end face

101A. . . Part of the surface

A. . . Wash chopsticks

B. . . Emitter

B1. . . Container body

B11. . . Front part

B12. . . Bottom

B13. . . Foot board

B2. . . rubber Board

B3. . . Fixed plate

C. . . Grinding means

D1. . . The diameter of the small protrusion, the depth of the resin liquid

D2. . . Diameter of the front end face, length of the small protrusion

M. . . Ditch

N. . . Fixing tool

S1, S2, S3. . . Access hole

R. . . Resin block

W. . . Resin solution

Fig. 1 is a schematic view showing the washing chopsticks of the embodiment.

Fig. 2 is an enlarged perspective view showing the front end of the washing chopsticks of the embodiment.

Fig. 3 is a schematic view showing a state in which the resin coating step is performed by coating a resin to remove a segment formed at a joint portion between the chopstick body and the resin portion.

Fig. 4 is a plan view showing the shape of the tip end of the washing chopsticks of the embodiment.

Fig. 5 is an explanatory view showing several modifications of the small projections, and Fig. 5(A) shows an example in which the small projection has a rectangular cross section, and Fig. 5(B) shows an example in which the small projection has a triangular cross section. Fig. 5(C) shows an example in which the cross section of the small protrusion is a cross. Fig. 5(D) shows a small projection in which a groove portion is formed.

Fig. 6 is a flow chart showing an example of a method of manufacturing the washed chopsticks.

Fig. 7 is an explanatory view showing an example of a method of forming small protrusions, and Fig. 7 (A), Fig. 7 (B), and Fig. 7 (C) show the order of formation.

Fig. 8 is an explanatory view showing an example of a method in which a resin portion is formed in a hemispherical shape around a small protrusion, and Fig. 8(A) shows a state in which a chopstick body is inserted into a resin liquid, and Fig. 8(B) shows a chopstick. The state of the body lifted.

Fig. 9 is a schematic view showing an example of a resin coating device.

Fig. 10 is a cross-sectional view showing the insertion portion of the chopstick, and Fig. 10(A) shows a state in which the chopstick body is inserted into the insertion hole of the fixing plate, and Fig. 10(B) shows a state in which the insertion hole is inserted. Fig. 10(C) shows the state after being pulled out from the access hole.

Fig. 11 is a flow chart showing an example of a method of manufacturing the washed chopsticks.

Fig. 12 is a schematic view showing a state in which a segment formed at a joint portion between a chopstick body and a resin portion is removed by coating a resin.

Fig. 13 is a schematic view showing an example of a conventional washing chopstick, wherein Fig. 13(A) shows a state in which a resin film is formed on the surface, and Fig. 13(B) shows that the resin is peeled off from the resin film, and a part of the surface is shown. The state of being exposed.

Fig. 14 is a schematic view showing an example of a conventional washing chopstick, and Fig. 14(A) shows a state in which a resin block R is formed on the front end surface of the chopstick body, and Fig. 14(B) shows the axial direction. When the tensile force is applied, the entire resin block is separated from the distal end surface, and Fig. 14(C) shows a state in which the force parallel to the distal end surface is applied and the entire resin block is separated from the distal end surface.

1. . . Chopstick body

2. . . Resin department

11. . . Small protrusion

12. . . Front end face

A. . . Wash chopsticks

Claims (5)

A washing chopstick which is a washing chopstick having a washing durability, and is characterized in that a hemispherical resin portion is formed around a small protrusion protruding from a front end surface of the wooden chopstick body, and the small protrusion is a circle It is cylindrical and protrudes from the flat front end surface. The washing chopsticks according to the first aspect of the invention, wherein the surface of the resin portion and the surface of the chopstick body are flush with each other. According to the cleaning chopsticks of the first aspect of the patent application, a resin film is formed in the resin portion and the chopstick body. The cleaning chopsticks of claim 1, wherein the cross-sectional area of the small protrusion is 5% to 30% of the area of the front end surface. A method for producing a washed chopstick is a method for producing a washed chopstick having a washing durability, comprising the steps of: forming a small protrusion on a front end surface of the chopstick body; and forming a hemispherical shape around the small protrusion In the step of forming the resin portion, the step of forming the small protrusion on the front end surface of the chopstick body is to polish a part of the side surface of the chopstick body, and to reduce the diameter of the chopstick body to form a cylindrical shape and protrude from the flat front end surface. The small protrusions are formed by forming a hemispherical resin portion around the small protrusions by dipping the small protrusions of the chopstick body into the hard resin liquid and drying them to form a hard resin layer.