JPS63194981A - Display member provided with surface protection film and manufacture thereof - Google Patents

Abstract

PURPOSE:To obtain a display board having a clear print image, by composing the surface section of a laminate film of a thermoplastic resin having a softening point lower than the heating temperature for the lamination, and incorporating a resin component having compatibility with the thermoplastic resin in vehicles of transfer coloring ink. CONSTITUTION:When a film C is laminated over a receiving member A having an ink image 1, the ink image 1 is heated and pressurized at the time of lamination to produce an ink image 1' integrated with the thermoplastic resin on the surface section of the film C. It is because the thermoplastic resin on the surface section of the film C has softening point lower than the heating temperature at the time of lamination, and vehicles in coloring ink contain a resin component having compatibility with at least the surface section of the film C. Consequently, the ink image 1 formed on the receiving member A is not collapsed at the time of lamination, and a display member having a clear print image can be obtained.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is applicable to bicycles used in various sports competitions, name tags and nameplates for various organizations such as schools, companies, and government offices, name tags for individuals, trains, buses, etc. This invention relates to various display bodies such as diamond display boards, various information boards such as station name boards, town name and street number display boards, and various indoor and outdoor signboards, and methods for manufacturing the same.

[Problems to be solved by the prior art and the invention] Conventionally, the above-mentioned display bodies all have a unified format but have to be manufactured in many different types, each with different contents. It was a classic example of production.

Therefore, in the past, it was common to do it manually, but
Automation has become desperately needed in order to respond to soaring prices due to soaring labor costs and the need to shorten the period from ordering to delivery.

For this reason, attempts have been made to form a printed image on a label or paper using a computer or word processor and use this as a display, but none of these efforts have resulted in a good product.

One of the reasons for this is that conventional handwritten displays draw images on resin sheets using paint that is durable against rain, outside air, and friction, whereas when using a computer, etc. This was because the printer did not have an ink that had a fastness comparable to conventional paints and had the ability to form an image on resin sheets.

Therefore, in order to provide this kind of fastness, we tried laminating the surface of the sheet with the printed image on it with resin, but with conventional methods, the heat and pressure caused during lamination caused the ink to flow and the printed image to be damaged. It was deformed and could no longer function as a display.

As a result of the above-described trial and error, the inventors of the present invention adopted laminate and developed a display board that has various fastnesses and has a clear impression.

[Means and effects for solving the problems] First, the invention related to the display of the present invention (hereinafter referred to as the first invention) is as follows:
At least the surface portion of the laminating film on the side in contact with the receptor is made of a thermoplastic resin having a softening point lower than the heating temperature during lamination, and the vehicle of the transfer coloring ink is a resin component that is compatible with the thermoplastic resin. It adopts a structure containing the following.

With this configuration, the transfer colored ink transferred onto the receptor is compatible with and integrated with the laminating film during lamination. The integration is because at least the surface portion of the laminating film is made of a thermoplastic resin with a softening point lower than the heating temperature during lamination.
This is due to the fact that the entire ink image becomes integrated with the film due to the heating during lamination, so even if it is heated and pressurized during lamination, the ink integrated into the film will not exceed its thermal melting temperature. Despite being heated to such high temperatures, it is possible to maintain a clear image form that is almost the same as that at the time of image formation.

In addition, in the invention related to the manufacturing method of the present invention (hereinafter referred to as the second invention), the transfer colored ink of the thermal transfer ink sheet is transferred in an arbitrary image form to form a print image on the receptor, and then the image is formed on the receptor. When producing a display with a surface protective film by laminating a film on the surface, at least the surface portion of the film on the side in contact with the receptor is made of a thermoplastic resin, and the vehicle of the transfer colored ink is compatible with the thermoplastic resin. An arbitrary image is formed on the receptor using a thermal printer using a thermal transfer ink sheet containing a soluble ink, and then the film is applied to the image forming surface of the receptor at a temperature above its softening point. It adopts a structure in which lamination is performed while heating.

With this configuration, it has the same effect as the first invention, and since a thermal transfer method is used as the image forming system, it is easy to form a clear image, and it is easy to use with computers, etc. Since the information processing ability can be used directly, it is now possible to automate the production of this type of display, which was difficult to automate due to high-mix, low-volume production. He produced a beautiful display body that was almost the same as the original one, and came up with Uru.

[Example] First, the laminating film used in the present invention will be described.

The thermoplastic resin used for the film is a resin that is compatible with the resin component in the vehicle of the transfer blue ink of the thermal transfer ink sheet, and has a softening point lower than the heating temperature during lamination. It may be selected appropriately depending on the ink vehicle.

Examples of the resin include polyamide resin (softening point 50
~120℃ is suitable), polyurethane resin,
Polyester resin (appropriately has a molecular weight of about 2 x 104 to 3 x 104), ethylene-vinyl acetate copolymer resin (appropriately has a softening point of about 50 to 90°C), butyral resin (e.g. polyvinyl butyral), vinyl chloride-acetic acid Vinyl copolymer resin, low density polyethylene resin, syndiotactic-1,2-polybutadiene resin (suitably with a melting point of about 75 to 90°C), styrene-butadiene copolymer, vinyl chloride resin, chlorinated polyethylene resin, Polypropylene resin or the like can be used as appropriate.

When these resins are used, one or a mixture of these resins, or a mixture of these resins as the main component and other resin components, additives, etc. may be used.

The laminating film used in the present invention is not only one in which the resin component itself is formed into a film or sheet, but also one in which the resin component is applied to the surface of a film or sheet made of cloth, paper, or other resin. It may be applied to a certain thickness. The film or sheet-like material of the resin component itself and the coating thickness of the resin component are:
It is sufficient if it is about 1o-tooρ.

Further, an adhesive may be applied to the back side of the film to make it easier to adhere to other objects. Instead of applying an adhesive, the film itself may be made of a heat-fusible resin.

Next, the thermal transfer ink sheet will be explained.

The thermal transfer ink sheet can be made of thin high-density paper such as ordinary condenser paper or glassine paper, or polyester,
A heat-sensitive transfer ink layer is provided on the surface of a base made of a resin film such as polyethylene or polycarbonate.

The ink layer may be provided on the base by a conventional hot melt coating method or a solvent coating method using water or a solvent.

A silicone resin or other conventionally known anti-stick layer may be provided on the back surface of the base, if necessary.

In addition, the thermal transfer ink layer can be of either one-time type, in which the selected area is completely transferred in one use, or multi-type, which can be used multiple times without completely transferring in one use. The colored ink to be melt-transferred to the receiver must contain a resin that is compatible with the resin component constituting the surface portion of the laminating film.

The compatible resin component is preferably one similar to the above-mentioned thermoplastic resin and the same kind as that constituting the surface portion of the laminating film, but even if it is a different kind, it has the same solubility parameter. If it exists, it can be used as appropriate. It is appropriate that the weight ratio of such a resin component is about 3120 or more based on the total amount of the vehicle of the transfer colored ink.

Examples of compatible combinations of the different resins include the combinations shown in Table 1.

In each combination in Table 1, the compatible resin components in the ink vehicle may be used alone or as a mixture of two or more. It goes without saying that incompatible resins may be used as the resin component of the ink vehicle within a range that does not impair the purpose of the present invention.

[Margins below] As the vehicle for the transfer colored ink, any of various other usual waxes, thermoplastic resins, and viscosity modifiers such as oil can be used as long as the purpose of the present invention is not impaired. The miscibility and compatibility with the soluble resin component, viscosity, melting point, etc. may be appropriately selected and used so as to maintain the clarity of printing. Further, as for the coloring agent, ordinary dyes and pigments may be appropriately selected and used.

The viscosity of the transfer colored ink is suitably about 2 voids or more at 100°C.

In the one-time type, the thermal transfer ink layer may be composed of not only one layer but also two or more layers. For example, if the colored ink layer has poor releasability from the base during transfer, a layer made of wax or the like that has an extremely low viscosity during transfer heating may be provided between the colored ink layer and the base, or a layer made of silicone may be provided between the colored ink layer and the base. A non-transfer layer containing a removable material such as resin may be provided.

Furthermore, a transfer layer containing no colorant may be provided on the surface of the colored ink layer to prevent the colored ink from being accidentally transferred to the receiver.

As for the multi-type, one having a conventionally known structure can be used as appropriate, and one in which a non-transferable resin sponge layer is impregnated with a transfer colored ink is preferable.

-Next, I will explain the receptor.

The receptor may be one that has good adhesion to the transfer colored ink and has the property of being fused to the surface of the laminating film when heated and pressurized during lamination; Even if it does not have the above-mentioned film, it is sufficient if the surface of the film has heat-fusibility to the receptor. For example, films or sheets made of hard or soft vinyl chloride resin, polycarbonate, polyester, acrylic resin, tetrafluoroethylene copolymer, difluoroethylene copolymer, etc. can be used as appropriate. Furthermore, the film or sheet is not limited to a single-layer film, but may also be a multilayer film or sheet having an acrylic resin layer, a single layer of tetrafluoroethylene copolymer on the surface, and a soft or hard vinyl chloride resin layer on the back surface. A sheet may also be used.

When installing the receptor in the printer, make sure that the back side of the receptor is heat-adhesive to the platen, coated with adhesive, or is flexible and may wrap around the platen. If there is,
It is also a good idea to attach a removable backing paper such as release paper to the back side.

At least one of the laminating film or the receptor may be transparent, but usually the receptor is transparent so that the printed image can be seen from the side of the receptor.

When a transparent receptor is used, an inverted character image is formed on the receptor.

The laminating film may be made transparent so that the printed image can be viewed from the side of the film.

In this case, a sequential character image is formed on the receptor.

Weather resistance can be further improved by mixing an ultraviolet absorber or the like into any or all of the laminating film, the receptor, and the base described below.

Next, a specific example of the method for manufacturing the display body of the present invention will be shown.

First method (see Figure 1) A pattern signal processed by a personal computer (1) is input to a thermal transfer printer (2), and the thermal transfer ink sheet (B) is applied to the surface of a transparent receptor (A). Print the pattern.

Next, the receptor (A) is inserted into a laminator (3) together with the laminating film (C), and the film (
A display body (D) is obtained by laminating at a temperature equal to or higher than the softening point of the thermoplastic resin of C).

After the lamination, if necessary, the display body (D) may be attached to the base (E) on the side of the film (C). If the film (C) has thermal adhesive properties to the base (E) during this pasting, the film (C) can be attached using a heat press machine (4).
) side to the base (E).

The base (E) may be any suitable material depending on the purpose of the display, such as metal, synthetic resin, wood, a plate made of natural or synthetic fiber, cloth, or the like.

When laminating, the film (C) is placed on the image forming surface of the receptor (A), and the back side of the film (C) is placed on the base (E).
) may be laminated and fixed to the base at the same time by heat-pressing.

Further, an image of sequential characters is formed on the receptor (A) (which may be opaque), and a transparent film <C> is formed on the image forming surface.
In the case of the display body (D) obtained by laminating the base (E), the base (E) is fixed to the side of the receptor (A).

Second Method (See Figure 2) Alternatively, it is possible to use hot wire to form an image on the receptor without using a printer.

In this method, a document (F) (order letters) is created in which a predetermined pattern is imaged with a substance having a photothermal conversion function such as carbon, and the document (F) is superimposed on a transparent receptor (A). The ink layer is placed on the back side of the thermal transfer ink sheet (B) and irradiated with light such as infrared rays from the receptor (A) side, so that the ink layer is received in an image form (inverted letters) corresponding to the image formed by the photothermal conversion material. Transfer to the body. The following operations may be performed in the same manner as in the first method.

When using this method, there is no need to insert the receptor into the printer, so you can use a base fixed to the receptor in advance, or a material or cloth that is hard at room temperature or thick and has the function of a base. Can be used for receptors.

Note that even if it is difficult to use with a normal printer, it is possible to print by using a small printer that moves manually or automatically on a desktop.

According to the present invention, when the laminating film (C) is laminated on the receptor (A) having the ink image (1) obtained by transfer as shown in FIG. 3, the lamination is formed as shown in FIG. The ink image (+) becomes an ink image (I') that is integrated with the thermoplastic resin on the surface of the film (C) by heating and pressurizing the film. This is because the thermoplastic resin on the surface of the film (C) has a softening point lower than the heating temperature during lamination, and the colored ink vehicle contains a resin component that is compatible with at least the surface of the film (C). This is to do so. Therefore, the ink image formed on the receptor (^) does not flow during lamination as in the conventional case, and as a result, a display body with a clear printed image can be obtained.

Next, the present invention will be explained with reference to Examples.

Examples 1 to 6 A commercially available thermal printer was used to print an image (
reversed letters) were formed.

Then, using a commercially available laminator, the films shown in Table 3 were laminated on the impression side of the receptor at the temperatures shown in Table 4.

Next, the base shown in Table 4 was heat-sealed to the film side of the obtained laminate (excluding Example 3) using a commercially available heat press machine.

In any of Examples 1 to 6, the printed image did not run during lamination and the display body had a clear printed image.

Note that if the thermal transfer ink sheet used in Example 1 is used to print on the receptor used in Example 5, and the film used in Example 5 is laminated on the printed surface, the printed image will be removed during lamination. flowed and became unreadable.

[Table 4] [Effects of the Invention] In the first invention, the thermoplastic resin of at least the surface portion of the laminating film on the side in contact with the receptor has a softening point lower than the heating temperature during lamination, and Since the thermoplastic resin and the resin component of the transfer coloring ink vehicle are compatible, when the film is laminated on the image forming surface of the receiver, the image is integrated with the surface of the film without running. Therefore, the clear mark can be changed to a display body with a surface protective film.

In the second invention, in addition to the effects of the first invention, by forming an image on the receptor using a thermal transfer method using a thermal printer, it is possible to automate the production of display bodies, which are high-mix, low-volume products, and improve productivity. Beautiful displays can be manufactured.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram showing one embodiment of the display body manufacturing method of the present invention, FIG. 2 is a schematic explanatory diagram showing another embodiment of the display body manufacturing method of the present invention, and FIG. 3 is a transfer diagram. FIG. 4 is a schematic cross-sectional view showing the state of the print image after laminating a film on the receiver shown in FIG. 3. FIG. (Main symbols in the drawings) (A): Receiver (B): Thermal transfer ink sheet (C): Laminating film (D); Display (I): Print image [2), Thermal printer (3): Laminator patent Applicant: Fuji Kagaku Paper Industries Co., Ltd. and 1 other person

Claims (1)

[Scope of Claims] 1. A display body with a surface protective film, in which a film is laminated on the image forming surface of a receptor, on which a printed image is formed by transferring the transferred colored ink of a thermal transfer ink sheet in an arbitrary image form. At least the surface portion of the film on the side in contact with the receptor is made of a thermoplastic resin having a softening point lower than the heating temperature during lamination, and the transfer color ink vehicle is compatible with the thermoplastic resin. A display body with a surface protective film characterized by containing a resin component. 2. The display body with a surface protective film according to claim 1, wherein the receptor is a thin and flexible transparent sheet. 3. The display body with a surface protective film according to claim 2, wherein a release paper is attached to the back surface of the film. 4. The display body with a surface protective film according to claim 3, wherein the release paper is adhered to the back surface of the film via an adhesive layer. 5. With a surface protective film according to claim 2 or 3, wherein the film has thermal adhesiveness to a material selected from the group consisting of metal, synthetic resin, wood, and fiber. Display body. 6. Claims 2, 3, 4, or 5, wherein the film is fixed on its back side to a base selected from the group consisting of a metal plate, a synthetic resin plate, a wooden board, and a cloth. Display body with a surface protective film as described. 7. A display body with a surface protective film, which is formed by transferring the transfer colored ink from a thermal transfer ink sheet into an arbitrary image to form an image on a receptor, and then laminating a film on the image forming surface of the receptor. A method for producing a thermal transfer ink sheet, wherein at least the surface portion of the film on the side that contacts the receptor is made of a thermoplastic resin, and the transfer colored ink vehicle contains a vehicle that is compatible with the thermoplastic resin. Surface protection characterized by forming an arbitrary impression on the receptor using a thermal printer, and then laminating the film on the image-forming surface of the receptor while heating it at a temperature equal to or higher than its softening point. A method for manufacturing a display body with a film. 8. The method for manufacturing a display with a surface protective film according to claim 7, wherein the receptor is a thin and flexible transparent sheet. 9. The method for manufacturing a display body with a surface protective film according to claim 8, wherein a release paper is attached to the back surface of the film. 10. The method for manufacturing a display body with a surface protective film according to claim 9, wherein the release paper is adhered to the back surface of the film via an adhesive layer. 11. The surface protection according to claim 8 or 9, in which the film is a synthetic resin film that has thermal adhesiveness to a material selected from the group consisting of metal, synthetic resin, wood, and fiber. A method for manufacturing a display body with a film. 12. Claims 8, 9, 10, or 11, wherein the back surface of the laminated film is fixed to a base selected from the group consisting of a metal plate, a synthetic resin plate, a wooden board, and a cloth. A method for manufacturing a display body with a surface protective film. 13. Claims 8, 9, 10, or 11, wherein the back side of the film is fixed to a base selected from the group consisting of a metal plate, a synthetic resin plate, a wooden board, and cloth at the same time as laminating. A method for manufacturing a display body with a surface protective film.