JP2001301037A - Method for forming character or figure on surface of constitutional material of product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for forming a character or figure having thickness on the surface of the constitutional material of a product such as a bag or clothing by a high frequency welder. SOLUTION: In the method for forming the character or figure on the surface of the constitutional material of the product, the thermoplastic synthetic resin, which is superposed on the surface of the constitutional material of the product through an undercoat layer comprising a solvent type composition based on a thermoplastic synthetic resin, is heated while pressed by a high frequency welder mold having an engraved character or figure and having a biting-off blade provided thereto in the periphery of the character or figure, not only to mold the character or figure but also to weld the same to the surface of the constitutional material of the product.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming characters and symbols on the surface of a component of a product comprising a fabric or a thermoplastic synthetic resin-coated fabric.

[0002]

2. Description of the Related Art Heretofore, for example, characters or figures such as brands, company names, and slogans are printed or pasted on products such as clothes or bags, which are made of cloth or thermoplastic synthetic resin-coated cloth. However, in recent years, characters and titles having thicker characters, ie, titles, that is, characters and titles rich in three-dimensional appearance have been more and more preferred.

[0003] One of the processing methods for attaching such three-dimensional characters and symbols is to use a molding die. This method uses a rubber or synthetic resin in a mold in which the characters and symbols are stamped. Is heated, pressurized, poured and molded integrally on a flat base plate to create a base plate with characters and titles. It is attached to the surface of the synthetic resin-coated cloth by bonding or welding.

[0004] However, there are various problems with this type of processing method using a conventional mold. That is, first,
When there are thin parts and complicated intricate parts in letters and names, when molding in a mold and taking it out,
In some cases, the thin part or the complicated intricate part may be damaged, and despite the fact that molding was carried out using a small number of molds over a long period of time, some parts could not be used, resulting in poor yield.

Second, in general, characters and figures are displayed in a different color from the components of the product to which they are attached to provide contrast, but the base plate and the characters and figures formed thereon are colored. Making a difference requires complicated work and increases the cost. Therefore, if the same color is used for the base plate, characters, and titles, then contrast between the base plate, characters, and titles will not occur. It was the current situation that was raised from the.

Third, instead of integrally forming the characters and the symbols on the base plate, only the characters and the symbols alone are formed one by one, and the characters and the symbols separated from each other are molded by a mold, and this is covered. If attached to the body through an adhesive, the characters and titles will have a three-dimensional appearance, and if characters and titles of different colors are created for each piece, the adherends and letters, figures, Although the contrast of the color of the name can be expressed as desired, the work of arranging and adhering characters and symbols within a predetermined range of the adherend requires a lot of time and complicated work, and furthermore, the character After combining the symbol with the adherend, sufficient pressure must be applied to the characters and details of the symbol in order to obtain sufficient adhesive strength, but it is not possible to apply even pressure to each part. It is difficult, and this pressing alone is not enough. After bonding, heating in a hot atmosphere,
Since the secondary strength of the pressure is applied to increase the adhesive strength, the number of processing steps is large and the unit price of the product is inevitably increased.

[0007] Fourth, in order to increase the bonding strength after the characters and figures are adhered to the adherend, secondary processing such as heating and pressing can be performed on a relatively heat-resistant material such as cloth or rubber-coated cloth. Although it is possible with a high temperature, for example, in the case of relatively low heat-resistant temperature such as thermoplastic polyurethane coated cloth, after bonding, heating and pressing, the coating layer of the coated cloth melts. It means that the physical properties of the adherend will be deteriorated, and it is impossible to perform the above-mentioned secondary processing after attaching characters and symbols to the adherend such as a thermoplastic polyurethane coated cloth. is there. Therefore, in the case of a laminated cloth having a coating layer having a relatively low melting point, such as thermoplastic polyurethane, the letters and symbols adhered to each other can obtain sufficient adhesive strength because the adhesive strength is obtained only by natural curing. Rather, they tend to peel off.

Fifth, the processing method using a mold is as follows.
Since it is necessary to produce lots as a base plate in which letters and names are integrally formed, a so-called plate, inventory management is necessary and wasteful.

There is also a so-called hot-melt method in which characters and names made of a thermoplastic synthetic resin are adhered to an adherend by heat fusion. Because it melts and loses its shape, it can be applied only to extremely thin flat characters and symbols.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the problems described in the prior art, and an object of the present invention is to provide a high-frequency welder mold which is used to form a product, An object of the present invention is to provide a method of forming characters and symbols having a predetermined thickness on the surface of a body and simultaneously forming the characters and symbols on an adherend by welding.

[0011]

In order to achieve the above object, a method for forming characters and symbols on the surface of a component material of a product according to the present invention comprises a thermoplastic synthetic resin as a component material of the product. Apply a solvent type composition as a component to form an undercoat layer,
A high-frequency welder mold having a thermoplastic resin sheet superimposed on the undercoat layer and having engraved letters and symbols and having cutting edges hard to surround the letters and symbols is placed on the undercoat layer. The letters and symbols are formed by heating while being pressed against the plastic synthetic resin sheet, and the letters and symbols are welded to the undercoat layer. In addition, on the undercoat layer, a thermoplastic synthetic resin sheet is stacked and placed with a polyurethane foam sheet therebetween, and a high-frequency welder mold is heated while being pressed against the thermoplastic synthetic resin sheet to obtain a desired part. At the same time as forming thick letters and symbols, the letters and symbols are welded to the undercoat layer. Furthermore,
The thermoplastic synthetic resin sheet to be placed on the undercoat layer is preferably colored in an arbitrary color.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention relates to a method of forming characters and symbols on clothes, bags, and other products using a cotton cloth or a thermoplastic synthetic resin-coated cloth as a constituent material, as shown in FIG. A solvent-based composition containing a thermoplastic synthetic resin as a main component is applied to a desired region on the surface of the constituent material 1 where characters and symbols are to be formed to form an undercoat layer 2.
The thermoplastic synthetic resin sheet 3 is placed on top of the thermoplastic synthetic resin sheet 3, and the high frequency welder mold 4 is heated while generating high frequency while being pressed against the thermoplastic synthetic resin sheet 3. The characters or symbols 5 are formed and the characters or symbols 5 are welded to the undercoat layer 2 to form
As shown in FIG. 5, a character having a desired thickness, that is, a symbol 5 is formed on the surface of the component 1.

The high-frequency welder mold 4 is engraved with a seal 6 for forming characters and symbols, and a cutting blade 7 is provided around the seal 6 to be welded to the component 1. The thermoplastic synthetic resin sheet 3 around the letter and the symbol 5 is cut off. The cut thermoplastic synthetic resin sheet is removed to form letters and symbols.

[0014]

Embodiment 1 FIGS. 3 to 6 show this embodiment 1, and FIG. 3 is a front view showing a balancing garment provided with characters by the method according to the present invention. Denier 66-plain weave (number of punches: vertical
A solvent-based composition containing thermoplastic polyurethane as a main component is applied to one surface of a base cloth 9 of 60 lines / in and 42 lines / in) to form an undercoat layer 10. A thermoplastic polyurethane layer 11 formed by rolling and spreading is formed on the thermoplastic polyurethane laminated cloth 12 shown in FIG.
It was created.

On the other surface of the base fabric 9 of the thermoplastic polyurethane laminated fabric 12, a solvent-type composition containing thermoplastic polyurethane as a main component was applied to form a top coat layer 13. Then, the thermoplastic polyurethane laminated cloth 12 is
The diving jacket 8 shown in FIG. 3 was cut out, and for example, the number 14 was attached to an appropriate portion of the front body 8a, and then the balancing jacket 8 was manufactured using a high-frequency welder.

As shown in FIG. 5, the character 14 of the balancing jacket 8 is attached by placing a thermoplastic polyurethane sheet 3a having a thickness of 2.00 mm on the top coat layer 13 and pressing it with a high frequency welder mold 4a. The heating and welding were performed while generating a high frequency while heating.

The high-frequency welder mold 4a is provided with a stamp 6a for forming the character 14 as in the embodiment, and a cutting blade 12a is provided around the stamp. After the end, when the high-frequency welder mold 4a is raised, the thermoplastic polyurethane sheet 3a has
As shown in FIG. 5, the character 14 is formed and the character 14 is welded to the top coat layer 13. In addition, the thermoplastic polyurethane sheet 3a around the character 14 is cut off at the interface of the top coat layer 13 and the cut thermoplastic polyurethane sheet 3a is removed, and as shown in FIG. A letter 14 having a thickness of 1.80 mm was welded 15 to the base plate.

The thermoplastic polyurethane laminated cloth 12 in the first embodiment has a top coat layer 13 on the other surface of the base cloth 9.
The main purpose of this is to provide a waterproof layer provided to prevent water from penetrating into the composition of the base fabric 9 under pressure because water pressure is applied to the balancing jacket 8. Since this waterproof layer is formed by applying a solvent type composition containing thermoplastic polyurethane as a main component,
When the character 14 is attached, it also plays the role of the undercoat layer 2 for increasing the adhesive force as in the embodiment.

The character 14 formed as described above gives a solid feeling, and has some deformation due to water pressure when it is underwater, but has a clearly distinguishable marking ability, and is used repeatedly. However, it was not peeled off from the welded portion, was rich in abrasion resistance, and was excellent as a sign for the balancing jacket 8.

Further, the character 14 is formed by receiving pressure in a closed state in the intaglio welding mold, so that the character 14 has a substantial thickness.

[0021]

Second Embodiment FIGS. 7 and 8 show a second embodiment.
In the same manner as in Example 1, a top coat layer 13 is formed by applying a solvent-type composition containing thermoplastic polyurethane as a main component to the other surface of the base fabric 9 of the thermoplastic polyurethane laminate 12. The cloth 12 is cut to produce the diving jacket 8 shown in FIG. 3, and, for example, a character 16 of a number “1” is attached to an appropriate position of the front body 8 a, and then the balancing jacket 8 is attached with a high-frequency welder. Made.

In the second embodiment, as shown in FIG.
A 0.50 mm thick thermoplastic polyurethane sheet 3 with a 7 g / cm ² polyurethane foam sheet 18 interposed
a was placed on the top coat layer 13 and heated and welded by generating high frequency while being pressed by the high frequency welder mold 4a.

After the pressing and heating are completed, the thermoplastic polyurethane sheet 3a is replaced with the crushed polyurethane foam sheet 18
Of the thermoplastic polyurethane sheet 3 around the characters 16
a and the polyurethane foam sheet 18 are the top coat layer 1
8, the thermoplastic polyurethane sheet 3a and the polyurethane foam sheet 18 cut off at the interface with the sheet 3 are removed, and the characters 16 having a thickness of 0.70 mm on the top coat layer 13 are removed as shown in FIG. Was formed by welding 19.

The character 16 formed as described above gives a heavy feeling because the character 16 is contained therein, and since the inside of the character 16 is isolated from the outside, air and water are also present. When you are in the water without getting in and out,
The thickness of the character 7 was slightly reduced due to the water pressure, but when the character 7 came out of the water, it was completely restored to its original thickness.

In addition, even if it is deformed by applying water pressure each time it is used, it does not peel off from the welded portion.

By using the thermoplastic rigid resin sheet 3 or 3a colored in various colors, it is possible to very easily create desired characters and figures in various colors.

[0027]

According to the present invention, when characters and symbols are provided on an adherend, a thermoplastic synthetic resin is superimposed on the adherend and the characters and symbols are stamped and heated while being pressed by an intaglio welding mold. Since letters and symbols are formed and welded on the body,
The letters and symbols are welded as they are clearly molded to the delicate parts. Therefore, the processing efficiency is good and there is almost no problem.

Since the formed letters and symbols are welded to the adherend at the same time as the molding, the bonding force between the letters and symbols and the adherend is strong, and the letters and symbols are peeled off from the adherend. Is extremely rare.

Like a diving balancing jacket,
If the surface of the component has a top coat layer for waterproofing, it can be directly welded to the top coat layer.
In particular, there is no need to form an undercoat layer to increase the bonding force, and processing can be performed at low cost.

In the present invention, since the intaglio welding type in which the molding of the characters and the symbols is stamped is used, the characters and the symbols are thick and heavy. In particular, in the case where a filler such as a polyurethane foam sheet is put in the characters and names,
It is rich in three-dimensional appearance and looks good.

In the present invention, a character which is cut off from its periphery except for characters and figures, has a clear contrast with the adherend since there is no conventional base plate.

In the present invention, if several types of characters and symbols of different colors are formed side by side on an adherend, a single molding,
Colorful letters and symbols can be attached by welding.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing components of a product in which a thermoplastic synthetic resin sheet is mounted on an undercoat layer and a high-frequency welder mold.

FIG. 2 is a cross-sectional view of a main part showing a state in which characters are molded and welded on a component material of a product.

FIG. 3 is a sectional view of a main part of a thermoplastic polyurethane laminated fabric.

FIG. 4 is a front view of a diving balancing jacket.

FIG. 5 is a partial cross-sectional view showing a processing method for forming and attaching characters and symbols on an adherend.

FIG. 6 shows an adherend and characters formed and attached thereon,
It is sectional drawing which shows a symbol.

FIG. 7 is a partial cross-sectional view showing a method of forming and attaching characters and symbols including a filler on an adherend.

FIG. 8 is a cross-sectional view showing characters and names including an adherend and a filler formed and attached thereon.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Constituent material of product 2 Undercoat layer 3, 3a Thermoplastic synthetic resin sheet 4, 4a High frequency welder mold 5 Characters, symbol 6 Inscription 7 Pile cutting blade 8 Balance bbb jacket 9 Base cloth 10 Undercoat layer 11 Heat Plastic polyurethane layer 12 Thermoplastic polyurethane laminated cloth 13 Top coat layer 14 Characters 15 Welding 16 Characters 17 Polyurethane foam sheet 19 Welding

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) B29L 9:00 B29L 9:00

Claims (3)

[Claims] An undercoat layer is formed by applying a solvent-based composition containing a thermoplastic synthetic resin as a main component to a constituent material of a product, and a thermoplastic synthetic resin sheet is laminated on the undercoat layer. Put on,
The high-frequency welder mold having the engraved characters and symbols and having the cutting edges hard to surround the characters and symbols is pressed against the thermoplastic synthetic resin sheet and heated to form the characters and symbols at the same time. A method of forming letters and symbols on the surface of a component of a product, comprising welding the letters and symbols to an undercoat layer. 2. An undercoat layer is formed by applying a solvent-type composition containing a thermoplastic synthetic resin as a main component to a constituent material of a product, and a polyurethane foam sheet is interposed on the undercoat layer. The thermoplastic synthetic resin sheets are placed on top of each other, and the engraved characters,
A high-frequency welder mold having a symbol and having the cutting edge hard to surround the symbol and the symbol is heated while pressing the thermoplastic synthetic resin sheet against the thermoplastic synthetic resin sheet to form the symbol and the symbol, and at the same time, the character and the symbol are formed. A method of forming letters and symbols on the surface of a component material of a product, characterized in that the letters and symbols are welded to an undercoat layer. 3. A character or picture is formed on the surface of the component material of the product according to claim 1, wherein the thermoplastic synthetic resin sheet placed on the undercoat layer is colored in an arbitrary color. how to.