JP2003246969A - Method for applying adhesive sheet for decoration - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for applying adhesive sheets, enabling the sheets to be stuck by overlapping them while reducing an overlap width and regulating the width so as to be constant without damaging an adherend. <P>SOLUTION: When two or more adhesive sheets 1 and 2 for decoration are stuck on the adherend A, the adhesive sheets 1 and 2 are cut at the overlapping part at both edges of the adhesive sheets 1 and 2 by sandwiching a metal plate 3 between the adherend A and the adhesive sheet 1 the edge part of which contacts with the adherend A, cutting the adhesive sheets 1 and 2, removing not only the metal plate 3 but also the unnecessary overlapped parts 4 and 5, and overlapping the adhesive sheets 1 and 2. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction method for adhering and adhering a plurality of indoor and outdoor decorative adhesive sheets to an adherend.

[0002]

2. Description of the Related Art Generally, a decorative adhesive sheet (hereinafter referred to as
Simply referred to as a "sheet") is attached to an acrylic resin plate, an aluminum composite plate, a glass plate, a tarpaulin (polyvinyl chloride resin), etc., and is used as various tower signboards and sleeve signboards. In recent years, very large size signboards have been used especially for external and internal lighting signs, and huge signboards having a width of about 5 m and a length of about 15 m have been produced. However, a sheet with a width of about 1 m is generally used due to the manufacturing equipment, etc. When attaching a sheet to such a large adherend, join multiple sheets together. Will be required.

There are generally two types of construction methods for joining sheets: "overlapping" and "butting". “Layering and pasting” is a method of constructing a plurality of sheets by providing a certain layering shiro. In the case of this construction method, particularly when applied to an internally illuminated signboard, the appearance color tone of the overlapped portion becomes dark when light is irradiated from the back surface of the adherend.
If the stacking width is small and the width is uniform, the appearance will not deteriorate so much, but with the conventional construction method, the stacking width tends to be large. The width of the mating part was not uniform, and problems such as poor appearance were likely to occur.

On the other hand, "butting and laminating" is a construction method in which the side portions of the sheets are abutted and affixed to each other without overlapping the sheets. It is liable to occur, and there is a problem in that this portion becomes streaky and becomes unattractive. Further, according to this construction method, since the sheets are cut with a cutter or the like in a state where the two sheets are superposed, there is a problem that the adherend is easily damaged and therefore the appearance is deteriorated with time.

In order to improve the above-mentioned problems, there has been proposed a method in which the color of the overlapping white portions of the sheet is adjusted to be thin in advance and a desired color density is obtained after the overlapping (Japanese Patent Laid-Open No. 2001-2001). -282151 gazette). However, it is necessary to use a sheet (for example, a printing sheet on which a digital image is applied) whose surface color density can be adjusted in order to adjust the color thinly in advance and to obtain the desired color density after superimposing the colors. Sheet cannot be used. To adjust the color using a digital image requires complicated operations such as data processing on a computer. In addition, the overlap width is uniformly determined during data processing, and if misalignment occurs during construction, the part where the overlap becomes large becomes darker in color and the part where overlap becomes smaller becomes lighter in color. We cannot solve the problem of poor appearance such as when attaching large sheets.

[0006]

As described above, there has not been established a method for laminating sheets so that the appearance of the laminated portion can be stably satisfied.
In view of the problems of the above-described conventional sheet seaming construction method, the present invention is capable of "overlapping" in which the width of the lap silo is small and uniformly controlled, and scratches the adherend. The purpose is to provide a construction method that does not exist.

[0007]

In order to achieve the above-mentioned object, the present invention, when a plurality of decorative pressure-sensitive adhesive sheets are attached to an adherend, at the overlapping portion of the end portions of the decorative pressure-sensitive adhesive sheet, After the metal plate is sandwiched between the body and the decorative pressure-sensitive adhesive sheet whose end is in contact with the adherend, the decorative pressure-sensitive adhesive sheet at the portion where the ends overlap each other is cut, and then the metal plate is removed to obtain the decorative pressure-sensitive adhesive sheet. There is provided a method for applying a decorative pressure-sensitive adhesive sheet, the edges of which are overlapped with each other.

The present invention will be described in more detail below.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic cross-sectional view showing an example of the construction method of the present invention, and FIG. 2 is a schematic cross-sectional view showing a state in which the sheet is cut, the metal plate is removed, and the sheets are overlaid in the construction method of the present invention. Is. As illustrated in FIG. 1, the construction method of the present invention involves attaching the first sheet 1 to the adherend A and between the end portion on the side overlapping the second sheet 2 and the adherend A. The metal plate 3 is sandwiched between the first sheet 1 and the first sheet 1 together with the metal plate 3 are attached to the adherend A. Then 10-3 at the edge of the first sheet 1
The second sheet 2 is attached to the adherend A so as to overlap with each other by 0 mm.

As described above, the adherend A / metal plate 3 /
At the place where the layer structure of the first sheet 1 / the second sheet 2 is formed, the first sheet 1 and the second sheet 2 are overlapped in parallel with the edges of both sheets using a cutter or the like, and the central portion thereof is formed. For example, it cuts at the position of the chain double-dashed line shown in FIG. At this time, it suffices to push the cutter hard and scratch the metal plate 3. Further, when the sheet is cut, it is better to use a ruler or the like to cut the sheet so that the cut surface becomes straight.

After cutting as described above, the unnecessary white 4 of the second sheet above the first sheet, the unnecessary white 5 of the first sheet below the second sheet, and the metal plate. 3, 3 is removed, and the second sheet 2 is carefully superposed on the first sheet 1 on the adherend A as shown in FIG. In some cases, the second sheet 2 may be pulled slightly and overlapped. In addition, the upper and lower layers of the first sheet and the second sheet may be interchanged when superposed. Since FIG. 1 is a schematic diagram, for the sake of convenience, unnecessary white 5 of the first sheet and unnecessary white 4 of the second sheet 4
Is displayed by changing the hatching density with the two-dot chain line as a boundary.

The metal plate 3 has a thickness of 100 to 2000 μm.
It is preferably m. If the thickness is less than 100 μm, the overlapping width of the required width cannot be obtained, and the edge of the upper sheet may be curled up as shown in FIG. 3, and the stable structure may not be obtained. Also, when the sheet is cut with a cutter, the adherend may be damaged if the metal plate is thin. When the thickness of the metal plate exceeds 2000 μm, the width of the overlapping shiro becomes large, which is a problem in terms of appearance. Also, when cutting a large sheet, the weight of the metal plate increases,
Workability may deteriorate.

(Operation) In the construction method of the present invention, since the overlapping white can be stably obtained depending on the thickness of the metal plate, it is possible to provide an overlapping portion having a good appearance. Also,
Since the sheet is cut on the metal plate, the adherend is not damaged. If the adherend is a soft vinyl chloride resin such as tarpaulin or flexible face or other easily scratchable material, the adherend may crack or crack from the wound, but in the construction method of the present invention, a strong cutter is used. Even if it is pushed in, the adherend is not scratched, and it is possible to construct a highly reliable sheet.

[0014]

EXAMPLES Examples and comparative examples of the present invention will be specifically described below. The present invention is not limited to the following examples.

(Example 1) A flexible face made of vinyl chloride resin (abbreviated as FF in Table 1 described later) was used as the adherend A, a stainless steel shim plate having a thickness of 1000 μm was used as the metal plate 3, and Sekisui Chemical Co., Ltd. was used as the sheets 2 and 3. Using "Tack Paint" (hereinafter referred to as sheet a) manufactured by Kogyo Co., Ltd., the construction method described as the embodiment of the invention was adopted with reference to FIG. 1 and FIG. The used tack paint (sheet a) is a sheet in which a pigment-kneaded polyvinyl chloride resin sheet having a thickness of 50 μm is laminated with an acrylic pressure-sensitive adhesive having a thickness of 30 μm.

(Example 2) The adherend A is a vinyl chloride resin flexible face (abbreviated as FF in Table 1 described later), and the sheets 1 and 2 are "overlay films" manufactured by Sekisui Chemical Co., Ltd. (in Table 1). Is abbreviated as a sheet b), and the overlapping construction is performed with the same configuration as in Example 1. The “overlay film” is a sheet in which a 30 μm-thick acrylic resin sheet is laminated with a 30 μm-thick acrylic pressure-sensitive adhesive.

(Example 3) Similar to Example 1 except that the adherend A is a gypsum board, and the sheets 2 and 3 are "Paroa" manufactured by Sekisui Chemical Co., Ltd. (abbreviated as sheet c in Table 1). Then, the overlapping construction was performed. In addition, "paroa"
Is a sheet in which a pigment-blended polyvinyl chloride resin sheet having a thickness of 160 μm and an acrylic pressure-sensitive adhesive having a thickness of 45 μm are laminated.

(Example 4) An overlay was applied in the same manner as in Example 1 except that the adherend A was an acrylic resin plate and the metal plate 3 had a thickness of 200 µm.

(Embodiment 5) The thickness of the metal plate 3 is 1500 μ
Lamination was carried out in the same manner as in Example 4 except that the length was m.

(Comparative Example 1) The sheet of Table 1 was used to join the adherends of Table 1 to the adherend of Table 1 by a conventional lap-bonding method without using a metal plate.

(Comparative Example 2) The sheet was joined to the adherend shown in Table 1 by using the sheet shown in Table 1 by the conventional lap-bonding method without using a metal plate.

(Comparative Example 3) The sheet was joined to the adherend shown in Table 1 using the sheet shown in Table 1 by the conventional lap-sticking method without using a metal plate.

(Comparative Example 4) The sheet was joined to the adherend shown in Table 1 by using the sheet shown in Table 1 by a conventional butting method without using a metal plate.

(Comparative Example 5) The sheet was joined to the adherend shown in Table 1 by using the sheet shown in Table 1 by a conventional butting method without using a metal plate.

(Comparative Example 6) The sheet was joined to the adherend shown in Table 1 by using the sheet shown in Table 1 by a conventional butting method without using a metal plate.

With respect to the above Examples 1 to 5 and Comparative Examples 1 to 6, evaluation was carried out regarding whether or not the adherend was scratched, the overlapped part width, its linearity and appearance, and the results are shown in Table 1. Described in.

[0027]

[Table 1]

Note) A negative value for the overlapped part width indicates that the openings are open.

From the above Examples and Comparative Examples, it is apparent that the use of the construction method of the present invention makes it possible to splice decorative sheets that do not damage the adherend and that look good. That is, in the conventional lap-sticking method, the width of the lay-out gap is large and the appearance is very bad. In addition, the conventional butting method is a decorative construction method that is less reliable because it causes an opening of less than 1 mm to cause a poor appearance and scratches the adherend during cutting.

[0030]

The method for applying a decorative pressure-sensitive adhesive sheet according to the present invention comprises the steps of attaching a plurality of decorative pressure-sensitive adhesive sheets to an adherend:
At the overlapping portion of the end portions of the decorative pressure-sensitive adhesive sheet, a metal plate is sandwiched between the adherend and the decorative pressure-sensitive adhesive sheet that is in contact with the adherend, and the decorative pressure-sensitive adhesive sheet at the portion where the end portions overlap is cut. After that, the metal plate is removed and the end portions of the decorative pressure-sensitive adhesive sheet are overlapped with each other. Therefore, according to the present invention, it is possible to arbitrarily and stably adjust the overlapping white of the sheet splicing portion, which is good-looking. Decoration is possible. Further, since the sheet is cut on the metal plate, there is no fear of scratching the adherend, and a highly reliable construction method can be provided.

[0031]

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing one example before cutting a sheet in a decorative adhesive sheet construction method of the present invention.

FIG. 2 is a cross-sectional view showing an example after cutting the sheet in the decorative adhesive sheet construction method of the present invention.

FIG. 3 is a cross-sectional view after cutting the sheet when the metal plate is less than 100 microns in the method for applying a decorative pressure-sensitive adhesive sheet of the present invention.

[Explanation of symbols]

A: adherend 1: First sheet 2: Second sheet 3: Metal plate 4: No need for second sheet 5: No need for white sheet

Claims (2)

[Claims] 1. When a plurality of decorative pressure-sensitive adhesive sheets are attached to an adherend, the adherend and the decorative pressure-sensitive adhesive sheet in which the adherend and the end are in contact with each other at the overlapping portions of the ends of the decorative pressure-sensitive adhesive sheet. After cutting the adhesive sheet for decoration at the overlapping part of the ends with the metal plate sandwiched between and, remove the metal plate,
A method for applying a decorative pressure-sensitive adhesive sheet, characterized in that the edges of the decorative pressure-sensitive adhesive sheet are overlapped with each other. 2. The method for applying a decorative pressure-sensitive adhesive sheet according to claim 1, wherein the metal plate sandwiched between the decorative pressure-sensitive adhesive sheet and the adherend has a thickness of 100 to 2000 μm.