JP2012005550A - Processing method for patterning chopstick and chopstick patterned by the method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple processing method for patterning a chopstick, having excellent designability due to a synergistic effect of a combined pattern using a plurality of tubular films to which a pattern is applied and a pattern layer being a base.SOLUTION: A heat-shrinkable tubular film 3 to which a pattern is applied is cut into variously-shaped tubular films 3, which are sequentially fitted in a freely combinable manner onto a material chopstick 2 to which a pattern layer 11 is applied, then, a processing method for fixing the film on the material chopstick 2 by heat treatment is executed, thereby achieving an excellent design effect.

Description

The present invention relates to a processing method related to patterning of chopsticks used for meals, and a chopstick patterned by the processing method.
More specifically, the present invention relates to a patterning method that is simple and has a high design effect as compared to a conventional patterning method that requires time and complexity, such as coating and polishing, and chopsticks obtained by the processing method.

Meal chopsticks are mainly made of wood, bamboo, plastic, metal, etc.
There are cases where a material chopstick formed by making these materials into a chopstick shape is used as it is as a chopstick, or is painted or given a pattern on the chopstick surface.

The chopsticks include high-quality items used as gifts and souvenirs, and general-purpose items and business supplies used for homes, restaurants, hospitals, school meals, and the like.
The user selects a chopstick according to the purpose of use from many types of chopsticks and uses it.

As mentioned above, there are many types of chopsticks for eating in terms of their manufacturing method and purpose of use, but traditional and new techniques for patterning have been proposed and adopted in order to increase product value. ing.
For example, when using lacquer, lacquer is applied to the base material chopsticks in layers, and this is polished in a later process to display various patterns.
In the case of using this lacquer, there is also a technique for expressing a higher-class feeling by kneading shellfish or eggshell at the same time as lacquer or sticking it on the surface.
This manufacturing technique using lacquer is also applied to synthetic paints.

However, the traditional traditional patterning method using lacquer has a complicated manufacturing process and requires skill, and it is evaluated as a high-quality chopstick patterning method. The chopstick manufacturing method and patterning method were not necessarily optimal.
Other means such as printing have been proposed to solve these problems, but it is not a sufficient technique.

In order to solve the problems of the conventional patterning method, as shown in Patent Document 1, a heat-shrinkable tubule is extrapolated to the material chopsticks as shown in Patent Document 1, and the material is heat-treated. A method of fixing to chopsticks was proposed.
According to this method, not only the pattern but also the name of the store can be described.
As a technique that falls within the category of this technique, as shown in Patent Document 2, means for increasing the design effect by adding another technique such as a hologram effect to the above technique has been proposed.

Furthermore, as seen in Patent Document 3, once a pattern portion is formed on the material chopsticks with cloth or thread, a heat-shrinkable tubular film is extrapolated and heat-treated, and then finish processing In order to securely fix the pattern portion to the material chopsticks by applying, a means for ensuring a smooth surface has been proposed.
The patterning in this proposal is given by a separate pattern part, and the tube-shaped film itself is used as a cover member for fixing the pattern part and is different from the former two proposals. Described as a related document using a tube-like film for processing chopsticks.

Japanese Utility Model Publication No. 49-37276 JP-A-10-108776 JP 2007-82566 A

In the former two proposals, a pattern is applied to a tube-shaped film having heat shrinkability by attaching a pattern to the material chopsticks and fixing the film by heat treatment.
As a means, there is an advantage that a complicated process can be omitted and patterning can be easily performed.
However, in this method, the patterning of chopsticks is entrusted only to the patterned tubular film, and there is a problem that the design effect cannot be further enhanced.
In other words, in today's era when products with different designs are required for each product, the pattern is limited and simple, and it is difficult to say that it can meet the demands of consumers.

  As described above, the traditional chopstick patterning method has a problem in that traditional techniques using lacquer and the like require not only complicated processes and time but also skillful skills, which increases costs. In the relatively new and proposed technique of extrapolating and fixing a tubular film with a pattern to the material chopsticks, the pattern is limited and simple, and it is difficult to obtain the expected design effect. There was a problem. A simple patterning method for chopsticks that has a design effect that satisfies consumers at a low cost has been strongly demanded from the standpoint of producers and users.

The present invention has been made in the background as described above.
That is, an object of the present invention is to provide a simple patterning method for chopsticks having excellent design characteristics by a synergistic effect by a combination pattern using a plurality of patterned tubular films 3 and an underlying pattern layer. And providing chopsticks with a pattern thereby.

  In order to solve the above-mentioned problems, as a result of earnest and research, by using a plurality of tubular films 3 with a pattern and a pattern layer as a base, a synergistic effect of both can be exhibited and a specific design property can be imparted. The chopsticks patterning method of the present invention and the chopsticks are completed based on the knowledge.

That is, the present invention is a patterning method for chopsticks comprising the following steps (1) and 1) to 4).
1) A pattern layer applying step for applying a pattern layer to the base material chopsticks,
2) Extrapolation positioning step of extrapolating and positioning a patterned heat-shrinkable tubular film on the material chopsticks having a pattern layer;
3) The heat-fixing process of the tube-shaped film in which the tube-shaped film is shrink-fixed to the material chopsticks by heat treatment,
4) It exists in the finishing process which finishes a tubular film and the exposed part of a pattern layer.

  That is, the present invention resides in (2) the patterning method for chopsticks according to (1) above, wherein the pattern layer is provided by a synthetic paint or a natural paint.

  That is, the present invention resides in (3) the patterning method for chopsticks according to (1), wherein the pattern layer is formed of a heat-shrinkable tubular film with a pattern.

  That is, the present invention relates to (4) a tube-shaped film having a rectangular shape, a square shape, a trapezoidal shape, a parallelogram shape, or an indeterminate shape by cutting a long tube-shaped film attached flatly. The chopsticks patterning method described in (1) above.

  That is, according to the present invention, (5) when a tubular film is flattened to give a restoring force, and the tubular film is extrapolated to the material chopsticks, the restoring force causes the tube film to become a material chopstick. The present invention resides in the chopsticks patterning method described in (1) above, wherein the surface is pressed and temporarily fixed to enable positioning of the material chopsticks in the longitudinal direction or in the rotational direction.

  That is, the present invention provides (6) the patterning of the chopsticks according to (1) above, wherein, in the extrapolation positioning step, the tubular film is reduced in the axial direction or twisted in the circumferential direction to form a ridge. It exists in the processing method.

  That is, the present invention is (7) a tube in which finishing processing is performed by extrapolating a heat-shrinkable tubular film having a transparent portion at least in part, and shrinking and fixing by heat treatment, and shrinking and fixing first. The chopsticks patterning method according to the above (1), in which the film-like film and the exposed pattern layer are entirely covered.

  That is, the present invention is (8) the patterning method according to the above (1), wherein the finishing process is performed by applying the tube-shaped film previously heat-set (shrinkage-fixed) and the exposed pattern layer with a transparent paint. Exist.

  That is, the present invention resides in a chopstick that is patterned by the patterning method according to one of (9) and (1) to (8) above.

  In addition, as long as it meets the purpose of the invention, a configuration in which the above (1) to (9) are appropriately combined can be adopted.

  The chopsticks patterning method of the present invention is to cut a tube-shaped film with a pattern into various shapes according to the manufacturer's will to form a tube-shaped film, which is then combined with the manufacturer's will and sequentially into the material chopsticks Since the means for extrapolating and heat fixing is used, the design expression ability of the producer is sufficient compared to the conventional patterning method of extrapolating and fixing a single tubular film with a pattern. Demonstrated, it is possible to propose design expressions and the number of designs that are not inferior to traditional techniques.

  In this patterning method, the base material chopsticks are provided with a pattern layer made of synthetic paint or natural paint. A combination pattern is formed with the pattern layer exposed in the space between them, and the synergistic effect is exhibited to further enhance the design effect of chopsticks.

  And the tube-shaped film can be freely combined in its shape and length and at the same time, and furthermore, these tube-shaped films can be provided at a required interval or without any gap or in combination. Since extrapolation and heat fixing are also free, the number of designs that can be expressed is unlimited.

  When applying the pattern layer to the base material chopsticks by extrapolating and heat-fixing the tube-shaped film on which the pattern has been applied, it is simple and does not require time, A combination of a pattern and a color with the tube-shaped film heat-fixed to the tube becomes possible, and a further design effect can be obtained.

  And when it has a transparent part in a part of the tube-shaped film to which the pattern was given, the tube-shaped film obtained by cutting this naturally also has a transparent part, and the pattern layer which permeate | transmits from the transparent part Produces a more effective design expression and creates a higher level of luxury.

  And when the tube-shaped film is attached flatly, when this is cut into, for example, a rectangle, a square, a trapezoid, a parallelogram, or an indeterminate shape, the shape is as if a single film is cut. Therefore, it is possible to obtain a tubular film having an accurate shape and size, and as a result, a high-quality chopstick with high pattern accuracy can be obtained.

  If the tube-shaped film is flattened, cut it into a tube-shaped film and extrapolate it to the material chopsticks. Therefore, the tubular film is easily and reliably positioned with respect to the material chopsticks, and high-precision heat fixation is possible.

  And the finishing process is a tube-shaped film having heat-shrinkability that is transparent or partially having a transparent part, and the tube-shaped film previously heat-set and the pattern layer are entirely covered and heat-set. In the case where it is carried out, it is possible to easily perform a low-cost finishing process in a short time while utilizing the design effect of the tubular film and the pattern layer.

FIG. 1 is a schematic diagram of the material chopsticks 2 in which a pattern layer 11 is added to the base material chopsticks 1 (partially omitted, and the pattern layer 11 is partially removed at the same time). FIG. 2 is a schematic cross-sectional view of the material chopsticks 2. FIGS. 3A and 3B are explanatory views in which the tubular film 3 is flattened. FIG. 4 is an explanatory diagram for cutting the flat tubular film 3 into various shaped tubular films 3. FIGS. 5A to 5C are explanatory diagrams for producing only the tube-shaped film 3 having the same shape from one tube-shaped film 3. FIG. 6 is a schematic diagram of the substance obtained by selecting, combining, extrapolating, and positioning each tubular film 3 cut into the material chopsticks 2. FIG. 7 is an explanatory cross-sectional view showing a state in which the restoring force P is generated in the tubular film 3 expanded by the material chopsticks 2. FIG. 8 is an explanatory view showing a positioning state in the longitudinal direction Y of the material chopsticks 2 of the tubular film 3. FIG. 9 is a cross-sectional explanatory view showing a positioning state of the material chopsticks 2 in the rotation direction R of the tube-shaped film 3. FIG. 10 is a partial diagram of an entity schematic diagram showing that the exposed shape of the pattern layer 11 becomes a trapezoid when the positional relationship in the rotational direction between the trapezoidal tubular films 33 is the same. FIG. 11 is a partial schematic diagram showing that the exposed shape of the pattern layer 11 becomes a parallelogram when the positional relationship between the trapezoidal tube-shaped films 33 differs by 180 degrees. FIG. 12 is a schematic diagram of the substance in which the tube-shaped film 3 having various shapes is fixed to the material chopsticks 2 by heat. FIG. 13 is an actual explanatory diagram of extrapolating the finishing tubular film 3B to the material chopsticks 2 on which the tubular film 3 is heat-fixed. FIG. 14 is a schematic diagram showing the actual state that the transparent portion 3T is provided on the tube-shaped film 3 having various shapes provided with the geometric pattern 31. FIG. FIG. 15 is a schematic diagram of a substance in which tube-shaped films 3 having various shapes are partially heat-fixed to the material chopsticks 2 with a part of the gap portion 5 and partly without a gap. FIGS. 16A to 16C are explanatory diagrams in which an annular ridge S is formed on the tube-shaped film 3 and heat-fixed to the material chopsticks 2. FIGS. 17A to 17C are explanatory views in which a spiral ridge S is formed on the tubular film 3 and heat-fixed to the material chopsticks 2. FIG. 18 is a diagram illustrating an example in which a pattern is formed by a convex portion as a pattern layer.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings as necessary.

(First embodiment)
This embodiment will be described in the order of steps. The chopstick patterning method according to the present embodiment includes the steps 1) to 4) described above.
That is, it is composed of a pattern layer applying process that is the first process, an extrapolation positioning process that is the second process, a heat setting process that is the third process, and a finishing process that is the fourth process.
Hereinafter, the present embodiment will be described in accordance with each step.

In the first pattern layer application step, as shown in FIG. 1 (shown with some patterns omitted for convenience and the pattern layer 11 partially removed), the base material chopsticks 1 formed into a chopstick shape are formed. The material chopsticks 2 are formed by applying the pattern layer 11 as a base.
Here, the base material chopsticks are the ones in which the material for chopsticks such as wood and plastic is formed into a chopstick shape, and the ones that have been processed to the base material chopsticks but have not been completed are called the material chopsticks .
The material of the base material chopsticks 1 is not limited to natural materials such as wood and bamboo, but can be plastic, metal, or the like, but in this embodiment, wood is used.
A coating layer is formed on the whole wooden base material chopsticks 1 with a natural paint or a synthetic paint, and a pattern layer 11 is provided.

Specifically, as shown in FIG. 2, in the present embodiment, the base material chopsticks 1 have a rectangular cross section, and the coating of the pattern layer 11 surrounds this.
The pattern layer may be a pattern layer having a three-dimensional uneven shape as will be described later in a broad sense.
Of course, the cross-sectional shape of the base material chopsticks 1 may be circular or other shapes.
Further, the pattern layer 11 in the present embodiment covers the base material chopsticks 1 so as to cover the entire surface of the base material chopsticks 2, but may be formed on a part of the base material chopsticks 1.
That is, as will be described later, it may be formed only in a portion that will be exposed between the tubular films contracted and fixed by heat treatment.

In the extrapolation positioning step of the second step, as shown in FIG. 3, a tube-shaped film 3 </ b> A having a long circular cross section is used.
As shown in FIG. 4, the flat tube-shaped film 3 is cut into various shapes, and each of the short tube-shaped films such as a rectangle, a square, a trapezoid, a parallelogram, and an indefinite shape is used. 3 (31, 32, 33, 34, 35) is obtained.

Alternatively, as shown in FIG. 5, it is possible to obtain a short tubular film 3 (32, 33, 34) by cutting using a plurality of long tubular films 3.
Then, as shown in FIG. 6, these cut tubular films 3 (32, 33, 35) are selected, combined, and sequentially extrapolated to the material chopsticks 2.
Here, the cut is not limited, and the order, shape, and dimensions of the cut are arbitrary.

As shown in the schematic cross-sectional view of FIG. 7, the tube-shaped film 3 is expanded by the material chopsticks 2 when extrapolated to the material chopsticks 2, and a restoring force P to the original flatness is generated and the material chopsticks are generated. 2 is pressed and temporarily fixed.
This temporary fixing enables stable and accurate positioning of the tubular film 3 on the material chopsticks 2.

As shown in FIG. 8, this positioning can be performed both in the longitudinal direction Y of the material chopsticks 2 and in the rotational direction R of the material chopsticks 2 as shown in FIG.
The positioning of the material chopsticks 2 in the longitudinal direction Y determines the distance between the tubular films 3.
Further, the positioning in the rotation direction R determines the relative rotation position between the adjacent tubular films 3, and the effect that the design expression changes depending on the positional relationship is obtained.

  For example, as shown in FIG. 10, when the adjacent tubular film 3 is a trapezoidal tubular film 33, the shape of the spacing portion 5 viewed from the side surface, that is, the pattern layer 11, if the rotational direction positional relationship is the same. The shape of the exposed part is a trapezoid.

Moreover, as shown in FIG. 11, if the positional relationship of the rotation direction R mutually differs by 180 degree | times, the shape of the exposed part of the pattern layer 11 in the space | interval part 5 will become a parallelogram.
Thus, the positioning of the tube-shaped film 3 in the rotation direction R is a big factor in design expression.

The tube-shaped film 3 extrapolated and positioned as described above is fixed to the material chopsticks 2 in the heat setting step of the third step.
Here, heat fixing means that the tubular film 3 is contracted and fixed to the material chopsticks 2 by heat treatment.
As a material of the tube-shaped film 3, for example, when polyethylene terephthalate is used, high heat shrinkability and easy adaptability to the surface can be obtained.
Moreover, what is necessary is just to be able to heat the tube-shaped film 3, as heat processing, for example, the radiant heat by a hot air, hot water, or an electric heater etc. is used.

FIG. 12 shows an example of the material chopsticks 2 in a state in which the tubular film 3 is positioned and then contracted and fixed by heat treatment.
That is, the state after obtaining the heat setting step from the extrapolation and positioning state of FIG. 6 is shown.
A combination pattern is formed by the pattern and shape of the tube-shaped film 3 and the pattern layer 11 exposed in the interval portion 5 between the tube-shaped films 3, and a high design effect is obtained by the synergistic effect.

Next, a finishing process is performed on the material chopsticks 2 in a finishing process which is a fourth process.
In the present invention, finish processing includes a method of applying a transparent synthetic paint (for example, a polyester resin paint) and a method of using a finishing tubular film 3B having heat shrinkability.
In this embodiment, as shown in FIG. 13, a transparent tube-like film 3B for finishing having heat shrinkability is extrapolated to the material chopsticks 2, shrink-fixed by heat treatment, and the tube heat-fixed first. The film-like film 3 and the exposed pattern layer 11 (5) are preferably entirely covered.
In this case, the finishing tubular film 38 can be employed as long as it has at least a part of the transparent portion 3T.

(Second Embodiment)
In the present embodiment, the processing step is the same as in the first embodiment, but in the pattern layer applying step of the first step, the pattern is printed on the material chopsticks 1 without depending on the application of the paint. A tube-like film having heat shrinkability is used.
In other words, the tubular film for forming the pattern layer is extrapolated to the base material chopsticks 1 and contracted and fixed by heat treatment to form the pattern layer 11.
The vicinity of the tip of the material chopsticks 1 is covered with a tube-shaped film, and this is used as a pattern layer 11 and sequentially subjected to patterning according to a processing step.
In this case, the tubular film for pattern formation does not need to cover the entire base material chopsticks 1 and will be exposed between the tubular films 3 after the heat fixing step of the tubular film 3 performed later. It is also possible to cover only the portion corresponding to the pattern layer 11 (5).

  According to the said method, compared with the method of providing the pattern layer 11 by coating, it is simple and does not require time, Moreover, the combination of the pattern of the tubular film 3 is attained, and the design effect can be raised.

(Third embodiment)
In the present embodiment, a tubular film 3 (31, 33) on which a pattern is printed as shown in FIG. 14 is used, but a part of the pattern is a transparent portion 3T.
If this tube-shaped film 3 is extrapolated to the material chopsticks 2 and contracted and fixed by heat treatment, the pattern layer 11 located under the transparent portion 3T is seen through and a synergistic effect of delicate design with the pattern layer 11 is obtained. Is possible.
Such a tubular film 3 having a transparent portion 3T in a part thereof can also be used as the finishing tubular film 3B in the first embodiment.

(Fourth embodiment)
In this embodiment, as shown in FIG. 15, when the tubular film 3 is extrapolated to the material chopsticks 2 and heat-fixed, the tube-shaped film 3 is fixed with a gap in one region and fixed so as to contact with no gap in another region. .
In this way, by combining the heat-fixing by providing the gap portion 5 and the heat-fixing so as to be in contact with no gap, the area of the gap portion 5 is an area in which the pattern layer 11 is exposed and fixed so as to be in contact with no gap. As a result, it is possible to obtain a design effect that looks as if the tubular film 3 on which the combination pattern is printed is used.

(Fifth embodiment)
In this embodiment, the tube-shaped film is positively heat-fixed by heat in the extrapolation positioning step, and a unique wrinkle pattern is exhibited.
As shown in FIG. 16, the tubular film 3 is inserted into the material chopsticks 2 [see FIG. 16A], and in this state, the tubular film 3 is temporarily reduced in the axial direction [see FIG. 16B] .
As a result, an annular ridge S (so-called ridge) protruding outside the tubular film 3 is formed.
After that, this wrinkle S remains by shrinking and fixing it by heat treatment [see FIG. 16C].

There are other methods.
As shown in FIG. 17, the tube-shaped film 3 is extrapolated to the material chopsticks 2 [see FIG. 17 (A)], and in this state, the tube-shaped film 3 is twisted once so as to reduce the width of the dust in the circumferential direction. Add [see FIG. 17B].
As a result, a spiral wrinkle S (so-called wrinkle) protruding outside the tubular film 3 is formed.
After that, by shrinking and fixing by heat treatment, the wrinkles S remain similarly [see FIG. 17C].

The present invention has been described above by taking the embodiment thereof as an example. However, the present invention is not limited to the embodiment as long as the gist is not changed, and various modifications are possible.
For example, as the pattern layer 11 existing under the tubular film 3, a pattern having a three-dimensional uneven shape may be formed.
As an example of this, as shown in FIG. 18, a clay-like convex portion is formed around the chopsticks.
On top of this, the tubular film 3 is heat-fixed to cover the convex portions.
In addition, the thing which put the clay-like thing on the pattern layer 11 is also contained.
Further, for example, the patterning method of the present invention can be applied not only to the material chopsticks 1 that are intermediate processing materials of chopsticks but also to a finished product manufactured by a conventional technique.
This makes it possible to add a new design and increase the added value of the product.

Further, by using the tube-shaped film 3 having different diameters, when the tube-shaped film 3 is extrapolated to the material chopsticks 2, it is possible to superimpose and extrapolate, and there is an advantage that the range of design expression is expanded.
Furthermore, when color is applied to the tube-shaped film 3, an original deposition method for obtaining a color by adding a pigment or the like to the liquid raw material of the film is possible regardless of printing.
Moreover, it cannot be overemphasized that the thickness of the tube-shaped film 3 to be used can be suitably selected from a very thin thing to a thick thing.

According to the patterning method for chopsticks of the present invention, since it is a simple method for extrapolating and heat-fixing the tube-shaped film 3, it is possible to easily pattern a stick-shaped object such as chopsticks. is there.
For example, this processing method can be used for a handle of a mudler or kitchenware, and can also be used for a handle such as an umbrella. Furthermore, it can be used for canes, fishing rods, clothes rods, etc., and it is possible to develop a product with a high design effect that has never existed in many fields.

DESCRIPTION OF SYMBOLS 1 ... Base material chopsticks 11 ... Pattern layer 2 ... Material chopsticks 3 ... Tube-shaped film 31 ... Rectangular tube-shaped film 32 ... Square tube-shaped film 33 ... Trapezoidal tube-shaped film 34 ... Parallelogram-shaped tube-shaped film 35 ... Amorphous tubular film 3B ... Finishing tubular film 3T ... Transparent part 5 ... Spacing part P ... Restoring force R ... Rotating direction S ... 襞 Y ... Longitudinal direction

Claims (9)

A chopsticks patterning method comprising the following steps 1) to 4).
1) A pattern layer applying step for applying a pattern layer to the base material chopsticks,
2) Extrapolation positioning step of extrapolating and positioning a patterned heat-shrinkable tubular film on the material chopsticks having a pattern layer;
3) The heat-fixing process of the tube-shaped film in which the tube-shaped film is shrink-fixed to the material chopsticks by heat treatment,
4) A finishing process for finishing the tubular film and the exposed portion of the pattern layer.   2. The patterning method for chopsticks according to claim 1, wherein the pattern layer is provided by a synthetic paint or a natural paint.   2. The patterning method for chopsticks according to claim 1, wherein the pattern layer is formed of a heat-shrinkable tubular film having a pattern.   The tube-shaped film is a rectangular, square, trapezoidal, parallelogram-shaped, or amorphous tube-shaped film obtained by cutting a long tube-shaped film attached flatly. Item 2. A method for patterning a chopstick according to item 1.   The tube-shaped film is flattened to give a restoring force, and when the tube-shaped film is extrapolated to the material chopsticks, the tube-like film presses and temporarily fixes the surface of the material chopsticks by the restoring force. The chopsticks patterning method according to claim 1, wherein positioning in the longitudinal direction of the chopsticks or positioning in the rotational direction is possible.   2. The patterning method for chopsticks according to claim 1, wherein in the extrapolation positioning step, the tube-shaped film is reduced in the axial direction or twisted in the circumferential direction to form a ridge.   The finishing process is to extrapolate the heat-shrinkable tubular film with a transparent part at least in part, and shrink and fix by heat treatment, and then the shrink-fixed tubular film and the exposed pattern layer as a whole The chopsticks patterning method according to claim 1, wherein the chopsticks are patterned.   2. The patterning method for chopsticks according to claim 1, wherein the finish processing is performed by applying the tube-shaped film previously heat-set (shrink-fixed) and the exposed pattern layer with a transparent paint.   A chopstick that has been patterned by the patterning method according to claim 1.

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