JP2597773Y2 - Display laminated sheet - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated sheet for display which is useful for marking various articles.

[0002]

2. Description of the Related Art Heretofore, as a sheet for attaching a display mark to an article, a laminated sheet in which a base material layer such as a synthetic resin film and a colored film or sheet layer are laminated via an adhesive layer is known. . In such a laminated sheet,
The laminated sheet is cut into a desired shape, the base material layer is peeled off, the pressure-sensitive adhesive layer is adhered to the article, and a desired display mark is provided.

However, when such a laminated sheet is used, it is difficult to perform positioning while maintaining high adhesive strength. That is, when the adhesive strength of the pressure-sensitive adhesive layer to the article is reduced, a high adhesive strength cannot be secured, and the display mark may be peeled off from the article. On the other hand, if the adhesive force of the pressure-sensitive adhesive layer is increased, the surface of the pressure-sensitive adhesive layer is usually brought into contact with the article during bonding, so that it is complicated to correct even a slight displacement. In particular, when the adhesive is repeatedly adhered to the article to repair the misalignment, even if the adhesive strength is initially large, the dust adheres to the adhesive layer, the adhesive strength is sharply reduced, and the display mark is firmly adhered. It becomes difficult.

[0004]

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a laminated sheet for display which can be easily positioned and which can firmly attach a display mark to an article.

[0005]

SUMMARY OF THE INVENTION The present inventor has found that when no heat is applied, the hot-melt adhesive does not exhibit adhesive strength, and that only the colored region corresponding to the display mark remains on the film. The present inventors completed the present invention as a result of intensive studies focusing on the fact that positioning is easy using light transmission.

That is, the laminated sheet for display of the present invention is:
A colored resin layer and a hot-melt adhesive layer having a lower melting point or softening point than the colored resin layer are sequentially laminated on the translucent film having heat resistance, and the translucent film is formed.
Has a thickness of 50 to 125 μm, and has an adhesive layer and a colored resin layer.
Has a total thickness of 80 to 150 μm, and the adhesive layer and the colored resin
The ratio of the thickness to the layer is 3/1 to 1/3. Further, the film is peelable from the colored resin layer.

[0007]

In the laminated sheet, if the colored resin layer and the hot melt type adhesive layer are cut without cutting the film, the colored resin layer and the hot melt type adhesive layer in other areas can be peeled off from the film. The area of the film corresponding to the shape of the mark can be colored by the remaining colored resin layer. Further, the hot-melt adhesive layer does not exhibit an adhesive force unless heat is applied. Therefore, the colored region can be positioned at a predetermined position of the article by utilizing the translucency of the film other than the colored region.

Then, by applying heat from the film surface after positioning at a predetermined position on the article, the hot melt type adhesive layer can be thermally bonded to the article, and after the thermal bonding, the film is removed from the colored resin layer. By peeling, the display mark can be attached to the article.

[0009]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a sectional view showing an example of the laminated sheet for display of the present invention. This laminated sheet for display is composed of a light-transmitting film 1 having heat resistance, a colored resin layer 2 laminated on the film, and a hot melt adhesive layer 3 laminated on the colored resin layer. I have. The film 1 is peelable from the colored resin layer 2.

As long as the film 1 has translucency,
It may be transparent or translucent. Also, the film
It has heat resistance higher than the heat bonding temperature of the hot melt type adhesive layer 3. As such a film 1,
It can be formed of polyester such as polyethylene terephthalate and polybutylene terephthalate, thermoplastic resin such as nylon and polycarbonate, and thermosetting resin such as polyimide. Preferred films include polymers having high heat resistance and capable of being formed into a film, particularly a polyethylene terephthalate film.

[0012] The thickness of the film, wherein at the time of cutting of the colored resin layer 2 and the hot-melt adhesive layer 3 film is not particularly limited as long as it does not cleaved, 5 0～125Myuemu, good Mashiku about 75~100μm It is.

The unlaminated surface of the film may be untreated, but it is preferable to treat it with a release agent such as a silicone resin or emboss it by sandblasting or the like in order to make it easy to peel from the colored resin layer. preferable.

When the display laminated sheet is in the form of a roll,
The outer surface side of the film, that is, the surface opposite to the surface on which the colored resin layer 2 is laminated, is preferably treated with a release agent such as a silicone resin or embossed by sandblasting or the like. By such treatment or embossing, even when the film is wound into a roll, adhesion between the film and the hot melt adhesive layer can be prevented.

The colored resin layer 2 can be formed of a polymer having a film forming ability, for example, an olefin polymer such as polyethylene or polypropylene, polyester, nylon, polycarbonate, thermoplastic polyurethane, thermoplastic elastomer, or the like. Preferred polymers include thermoplastic polyurethanes and the like.

The hue of the colored resin layer can be appropriately selected according to the color of the desired display mark, and is yellow, red, purple, green, blue, black, white colored with a coloring agent such as a dye or pigment. And so on. The colored resin layer is not limited to a single color, and may be patterned in a plurality of colors. Furthermore, the colored resin layer may be partially or wholly opaque, but is usually transparent or translucent in many cases.

The hot melt type adhesive layer 3 is made of various polymers used for the hot melt type adhesive, for example,
Olefin or diene polymers such as polyethylene, polypropylene, polybutene, polybutadiene, ethylene-vinyl acetate copolymer, polyester, polyamide,
It can be formed of thermoplastic polyurethane or the like. Preferred hot melt adhesive layers include thermoplastic polyurethanes that exhibit high thermal adhesion strength to various articles.

The hot-melt adhesive layer may contain various additives as long as the adhesive strength is not impaired, and may be colored as required.

The type of the polymer contained in the colored resin layer and the hot-melt type adhesive layer may be different as long as they are joined with a high adhesive strength. Preferably, they are of the same family.

The total thickness of the colored resin layer and the hot-melt type adhesive layer can be appropriately selected within a range that does not impair the cutting properties, the adhesive strength and the coloring degree.
μm, preferably about 100 to 120 μm. When the total thickness of the layers is less than 80 μm, when the degree of concealment of the display mark is increased, the thickness of the hot melt adhesive layer is easily relatively reduced, and the adhesive strength is easily reduced, and the adhesive strength is reduced. If the thickness of the adhesive layer is increased in order to increase the size, the concealment by the colored resin layer tends to decrease, and a clear display may not be obtained. Also,
If it exceeds 150 μm, the cutting properties of the colored resin layer and the hot-melt type adhesive layer are apt to be reduced, the colored resin layer is not cut sharply, and burrs are likely to remain on the periphery of the cutting area.

The thickness ratio between the colored resin layer and the hot-melt adhesive layer can be selected within a range that does not decrease the degree of coloring, the degree of hiding, and the adhesive strength. The ratio of colored resin layer / hot-melt adhesive layer = 3 / 1-1 / 3, good Mashiku is about 2 / 1-1 / 2.

The melting point of the hot-melt adhesive layer may be lower than that of the colored resin layer, but may be 30 times lower than that of the colored resin layer.
C. or higher, preferably 50 to 100.degree.
When the difference in melting point between the adhesive layer and the colored resin layer is less than 30 ° C., the colored resin layer adheres to the film with thermal bonding, and the smooth peeling of the film from the colored resin layer is impaired. There is.

The melting point of the hot melt type adhesive layer is as follows:
It can be selected according to the type of the adherend, for example, 60 to 150
° C, preferably about 80 to 120 ° C.

The display laminate sheet of the present invention can be provided with a display mark on an article to be adhered, for example, as follows. That is, the hot-melt adhesive layer and the colored resin layer of the laminated sheet are cut by a cutting device into a shape corresponding to the display mark without cutting the film, and the hot-melt adhesive layer in an area not corresponding to the display mark is cut. Then, the colored resin layer is peeled from the film.

For this reason, the area of the film corresponding to the display mark is colored and has transparency with the other areas. In addition, the hot-melt adhesive layer does not exhibit an adhesive force to an article unless heat is applied. Therefore, it is easy to position the colored region of the film at a predetermined position of the article to be adhered by utilizing the translucency of the film.

Next, the colored region of the film is aligned with a predetermined position of the article, heat is applied from the film surface, the hot melt type adhesive layer is thermally bonded to the article, and the film is peeled from the colored resin layer. In addition, a display mark can be attached to a predetermined position of an article without displacement.

For the hot bonding of the hot melt type adhesive layer, various heating means, for example, an iron or a hot pressing method can be adopted.

The laminated sheet for display can be formed by a conventional method, for example, by sequentially applying a colored resin and a polymer for a hot-melt adhesive to the film, and further comprising a polymer constituting the film and a colored resin. The colored resin constituting the layer and the polymer for the hot melt adhesive can be formed by forming a film using an extrusion molding method or a coextrusion molding method.

The laminated sheet for display of the present invention has a wide range of applications to which a hot-melt adhesive can be thermally bonded, for example,
It is useful for marking on articles made of fiber material or leather material such as shoes, bags, clothing, sports clothing, accessories, molded articles made of metal, plastic or ceramics, glass products, and the like.

[0030]

According to the present invention, the display laminated sheet of the present invention is extremely easy to position and can firmly join the display mark to the article.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an example of the display laminated sheet of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Film 2 ... Colored resin layer 3 ... Hot melt type adhesive layer

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI G09F 3/10 G09F 3/10 C

Claims (3)

(57) [Scope of request for utility model registration] 1. A colored resin layer and a hot-melt adhesive layer having a lower melting point than the colored resin layer are sequentially laminated on a heat-transmitting light-transmitting film, and the film is formed on the colored resin layer. And a peelable laminated sheet,
The thickness of the translucent film is 50-125 μm and the adhesive
The total thickness of the layer and the colored resin layer is 80 to 150 μm,
A laminated sheet for display wherein the ratio of the thickness of the adhesive layer to the thickness of the colored resin layer is 3/1 to 1/3 . 2. The colored resin layer and the hot-melt adhesive layer have a total thickness of 100 to 120 μm, and the hot-melt adhesive layer has a melting point lower by 30 ° C. or more than the colored resin layer. Laminated sheet for display. 3. The laminated sheet for display according to claim 1, wherein a colored polyurethane layer and a hot melt type polyurethane layer are sequentially laminated on the polyethylene terephthalate film.