JP2001316641A - Colored pressure-sensitive adhesive transfer sheet or tape - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a colored pressure-sensitive adhesive transfer sheet or tape capable of distinguishing whether transfer to an adherend is effected or not at a glance. SOLUTION: The colored pressure-sensitive adhesive sheet or tape is produced by forming a colored pressure-sensitive adhesive layer on a release sheet.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive transfer sheet or tape, and more particularly, to a colored adhesive transfer sheet or tape.

[0002]

2. Description of the Related Art Paper and paper, or various articles, or
As means for attaching paper and an article or the like, a double-sided pressure-sensitive adhesive sheet or tape, a pressure-sensitive adhesive transfer sheet or tape, or a “pressure-sensitive adhesive transfer sheet or tape without a substrate” disclosed in JP-A-8-337776 Etc. For example, a double-sided pressure-sensitive adhesive sheet or tape, a pressure-sensitive adhesive transfer sheet or tape, or the like has been used for attaching a poster or a photograph to a wall or the like. The double-sided pressure-sensitive adhesive sheet or tape includes paper or a film or sheet as a substrate between the two pressure-sensitive adhesive layers, and has a large thickness even after application due to the presence of the substrate. On the other hand, the pressure-sensitive adhesive transfer sheet or tape does not have such a base material and has a small thickness correspondingly. However, the pressure-sensitive adhesive transfer sheet or tape has a small thickness of the pressure-sensitive adhesive layer after application, and as a conventional pressure-sensitive adhesive composition, it is colorless and transparent or translucent. It was very difficult to determine whether the image was transferred to the adherend.

[0003]

Accordingly, the present invention has been made in view of the above points, and has been made in view of the above circumstances.
It is an object of the present invention to provide a pressure-sensitive adhesive transfer sheet or tape capable of determining at a glance whether or not the transfer has been securely performed on an adherend.

[0004]

According to the present invention, there is provided a transfer sheet or tape having a pressure-sensitive adhesive layer formed on a release sheet, wherein the pressure-sensitive adhesive layer is colored. A transfer sheet or a tape is provided.

[0005] The colored pressure-sensitive adhesive transfer sheet or tape of the present invention comprises a colored pressure-sensitive adhesive layer having a pattern and / or characters and / or characters.
Alternatively, it may be formed so as to take a halftone dot and / or a figure or the like. In this case, a colorful adhesive transfer sheet or tape unprecedented can be manufactured. Also,
By forming a monochromatic or multicolor coloring pattern of characters, etc., it is possible to provide an adhesive transfer sheet or tape as a new product with marketability as a product for sales promotion or a character product. It can be freely used in various places according to the customer's request, and can be made into an article that matches the personality of the customer. In this case, if an adhesive transfer sheet or tape, such as a character of a plurality of types of single-color or multicolor coloring patterns, is prepared, it is needless to say that an article that matches the personality of more customers can be obtained.

[0006] The pressure-sensitive adhesive transfer sheet or tape of the present invention comprises:
A transfer sheet or tape comprising a pressure-sensitive adhesive layer formed on a release sheet, wherein the pressure-sensitive adhesive layer is formed of a plurality of layers, and at least one of the transfer sheets or tapes is colored. It can also be configured as a tape. In this case, the adhesive strength of both sides of the adhesive layer can be made different, as in the "adhesive transfer sheet or tape without substrate" disclosed in JP-A-8-337776. Further, in this case, at least the colored pressure-sensitive adhesive layer may be formed so as to be continuous or discontinuous so as to model a pattern and / or a character and / or a halftone dot and / or a figure. . And the other pressure-sensitive adhesive layer may be continuous or discontinuous, may be colorless and transparent or translucent, or may be colored, in the latter case,
It may be formed so as to model a picture and / or a character and / or a halftone dot and / or a figure. In general, when at least the colored pressure-sensitive adhesive layer is formed so as to form a pattern and / or a character and / or a halftone dot and / or a figure in a discontinuous manner, the other pressure-sensitive adhesive layers are continuous. However, it is preferable in terms of cost to be colorless and transparent or translucent, but it is not limited to this, and it should be decided on a case-by-case basis. In order to form a discontinuous pressure-sensitive adhesive layer, various printing methods such as screen printing are most suitable, but the present invention is not limited thereto as long as it can be performed.

[0007] The colored adhesive transfer sheet or tape of the present invention is a transfer sheet having a plurality of adhesive layers formed on a peelable sheet. A colored printing layer may be provided between the layers. The colored print layer may be continuous or discontinuous, and may be formed by single-color printing or multi-color printing. In this case, the “plurality of pressure-sensitive adhesive layers + colored printing layer” can be considered as one pressure-sensitive adhesive layer. Based on this interpretation, none of the plural pressure-sensitive adhesive layers is colored. However, it can be considered within the scope of the present invention. In this case, it is needless to say that at least one of the plurality of pressure-sensitive adhesive layers may be colored.

[0008] In the above case, the colored pressure-sensitive adhesive transfer sheet or tape of the present invention is characterized in that at least the colored layer is coated with a pattern and / or character and / or halftone dot and / or figure. Of course, it may be formed on the agent layer or the pressure-sensitive adhesive layer and the colored printing layer. In addition,
It will be clear that the term “colored layer” herein includes both the case where the pressure-sensitive adhesive is colored and the case where the adhesive has a printed layer.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below, but the present invention is not limited to these embodiments.

As the pressure-sensitive adhesive for the pressure-sensitive adhesive layer used in the present invention, various pressure-sensitive adhesives usually used in various fields may be used. For example, acrylic-, rubber-, and silicone-based pressure-sensitive adhesives may be used. Can be. These pressure-sensitive adhesives may be cross-linked or non-cross-linked, and may contain various additives such as tackifiers, plasticizers, matting agents, and various coloring agents such as pigments. Can also. Here, the term “colorant” includes various pigments including a white pigment and a black pigment, a dye, a metal powder, a fluorescent substance, a phosphorescent substance, and a phosphorescent substance. The thickness of the pressure-sensitive adhesive layer is not necessarily limited, but is preferably 3 to 60 μm, and 5 to 40 μm.
μm, more preferably 8 to 30 μm, even more preferably 10 to 20 μm.

In the case of the pressure-sensitive adhesive transfer sheet or tape of the present invention, the pressure-sensitive adhesive strength on both sides of the pressure-sensitive adhesive layer may be the same, or the pressure-sensitive adhesive force on both sides of the pressure-sensitive adhesive layer may be varied.
In the latter case, the ratio preferably has a difference of not less than 1: 1.3, and more preferably the ratio has a difference of not less than 1: 2. The adhesive strength of the weakly-adhesive pressure-sensitive adhesive varies greatly depending on the application, but when it is used for underprints, photographs or posters, the width is preferably 200 g / 25 mm or less, preferably 50 g.
/ 25 mm width or less is more preferable. The adhesive strength on the strong adhesive side varies greatly depending on the adhesive strength of the weak adhesive, etc., but is preferably a value exceeding 200 g / 25 mm width, more preferably 250 g / 25 mm width or more, and 400 g / 25 mm or more.
A width of 25 mm or more is more preferable. In addition, the measuring method of adhesive force and peeling force conforms to JIS-Z0237.

As the releasable sheet, a polyethylene film, a polypropylene film, a polymethylpentene film or the like which itself has releasability can be used as it is as a releasable sheet. It is preferable from the viewpoint of ease of peeling that various plastic films such as a vinyl film or paper, and those coated with a compound imparting releasability, such as a silicone-based or fluorine-based compound, are used as a peelable sheet. .

The pressure-sensitive adhesive layer can be provided on the release sheet by a method such as screen printing, gravure printing, coating with a coater or the like, but is not limited thereto as long as the layer can be formed. When providing a colored printing layer, for example, using a normal printing ink, it is possible to provide a printing layer colored using a printing ink by a printing method such as screen printing, planographic printing, letterpress printing, gravure printing, etc. . Lithographic printing, letterpress printing, gravure printing, etc.
Offset printing may be performed. However, there is no problem in the case of solid printing, but in the case of offset printing in which a picture and / or a character and / or a halftone dot and / or a figure, etc. are discontinuously formed, an adhesive layer provided on a release sheet is used. In some cases, it may be necessary to use a rubber roll made of a material on which the adhesion of the printing ink is minimized and the printing ink is applied, or to devise a material of the printing ink. When the pressure-sensitive adhesive layer is a multilayer such as two layers, a pressure-sensitive adhesive layer is provided on each of the two release sheets,
The colored adhesive transfer sheet or tape of the present invention can be prepared by laminating both. If the wide-width colored pressure-sensitive adhesive transfer sheet of the present invention is cut in an appropriate width in the vertical direction, it is a matter of course that a tape is obtained.

An example of a procedure for attaching the pressure-sensitive adhesive sheet of the present invention to an adherend will be described with reference to FIG. 1. First, the peelable sheet 2 is peeled off to expose one surface of the pressure-sensitive adhesive layer 3, and the pressure-sensitive adhesive layer 3 is exposed. Affix to the front or back of the body. Thereafter, the releasable sheet 1 is peeled off to expose the other surface of the pressure-sensitive adhesive layer 3 and is attached to another adherend. In the case of a photograph or a poster, one surface of the pressure-sensitive adhesive layer 3 is attached to the back of the photograph or the poster, and the peelable sheet 1 is peeled off to expose the other surface of the pressure-sensitive adhesive layer 3 to a wall or other surface. To the goods.

In FIG. 1, the peelable sheet is used so that the adhesive layer is sandwiched between the peelable sheet 1 and the peelable sheet 2. However, as shown in FIG. Since both sides have releasability (for example, one or both sides of a plastic film such as a polypropylene film are treated with a release agent), a shape wound up in a tape shape is also included in the scope of the present invention. The method of use is not limited to the above case.

[0016]

Next, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to these embodiments. Some of the drawings are exploded in order to facilitate understanding, but it is easy to understand the actual configuration of the colored adhesive transfer sheet of each embodiment.

Example 1 As shown in FIG. 2, an acrylic pressure-sensitive adhesive, SK Dyne (registered trademark) 700 manufactured by Soken Chemical Co., Ltd. was pigmented on a polypropylene film (peelable sheet 11) and used. A pressure-sensitive adhesive layer 13 made of a pressure-sensitive adhesive is formed by coating, dried with a dryer at 100 ° C. for 3 minutes, and then adhered to a peelable sheet 12 to prepare a colored pressure-sensitive adhesive transfer sheet as one embodiment of the present invention. did.

Example 2 As shown in FIG. 3, on a polypropylene film (peelable sheet 21), a pigment was added to Soken Chemical Co., Ltd. adhesive SC-11, and the adhesive was colored. And / or characters and / or halftone dots and / or figures were formed and printed to form the pressure-sensitive adhesive layer 23. 80 ° C in a dryer 5
After drying for a minute, the peelable sheet 22 was bonded thereon as shown in FIG. 2 to prepare a colored pressure-sensitive adhesive transfer sheet as one embodiment of the present invention.

Example 3 As shown in FIG. 4, an adhesive S made by Soken Chemical Co., Ltd. was screen-printed on a polypropylene film (peelable sheet 31).
The pressure-sensitive adhesive layer 33 was formed by screen-printing the pressure-sensitive adhesive using C-11 into a pattern and / or a character and / or a halftone dot and / or a graphic. After drying in a dryer at 80 ° C. for 5 minutes, one or more colors of a pattern such as a pattern and / or a character and / or a halftone dot and / or a figure are subjected to lithographic offset printing to obtain a colored print layer. 34 were formed.
After drying, further screen printing was conducted to use Soken Kagaku SC
An adhesive layer 35 is formed by stamping and printing an adhesive using -11 like a pattern and / or a character and / or a halftone dot and / or a figure, and the like. A colored pressure-sensitive adhesive transfer sheet as one embodiment was prepared.
At this time, the peeling force of the peelable sheet is always the release sheet 31.
<Released sheet 32 was set so that the peeling force was different. In this case, the ratio is preferably 1: 2 or more.

Example 4 As shown in FIG. 5, an adhesive SC manufactured by Soken Chemical Co., Ltd. was screen-printed on a polypropylene film (peelable sheet 41).
The pressure-sensitive adhesive layer 43 using -11 was formed in a belt shape. Then, one or a plurality of patterns were subjected to lithographic offset printing such as a pattern and / or a character and / or a halftone dot and / or a figure to form a colored print layer 44. After drying, the same pressure-sensitive adhesive as that described above was used, and a pressure-sensitive adhesive layer 45 was formed in a belt shape by screen printing, and the peelable sheet 42 was bonded.

As a printing method for forming a colored printing layer, simply printing by screen printing or offset printing of gravure, planographic printing or letterpress printing is used. An adhesive layer is provided on this release sheet, and Any printing method may be used as long as a colored print layer such as a character and / or a picture pattern and / or a halftone dot and / or a figure can be formed. In addition,
The pressure-sensitive adhesive layer can be formed by coating with a coater or the like other than screen printing, but is not limited thereto.

Example 5 In this example, a colored pressure-sensitive adhesive transfer sheet or tape in which the adhesive strength of both sides of the pressure-sensitive adhesive layer was varied was produced. As shown in FIG. 6, first, a weak pressure-sensitive adhesive is screen-printed on a release sheet 51 so as to form a pattern and / or a character and / or a halftone dot and / or a graphic. Was formed. After drying, the printing layer 5 is colored on the pressure-sensitive adhesive layer 53 using a normal screen printing ink so that one or more colors of a pattern, character, halftone dot, figure, or the like is modeled.
4 was formed by screen printing. After drying, a pressure-sensitive adhesive of a strong pressure-sensitive adhesive type was screen-printed thereon so as to model a pattern and / or a character and / or a halftone dot and / or a figure to form a pressure-sensitive adhesive layer 55. A releasable sheet 52 was bonded thereon.

In the fifth embodiment, by giving a difference in the adhesive strength between the adhesives on both sides in this way, a colored adhesive transfer tape and tapes that can be peeled off and re-attached can be manufactured.

Embodiment 6 As shown in FIG. 7, first, a weak adhesive type adhesive layer 63 is formed in a strip shape on a release sheet 61 by coating.
From there, the picture and / or the character and / or the halftone dot and / or
Alternatively, one color or a plurality of colors are subjected to planographic offset printing of a graphic or the like to form a colored print layer 64. After drying, a strongly adhesive type pressure-sensitive adhesive layer 65 was printed thereon in a belt shape, and a release sheet 62 was laminated thereon.

Example 7 First, a pressure-sensitive adhesive was coated on a release sheet to form a band-shaped pressure-sensitive adhesive layer. Using a colored pressure-sensitive adhesive, one or more colors of a picture and / or a character and / or a halftone dot and / or a graphic were screen-printed to form a colored pressure-sensitive adhesive layer.

[0026]

According to the conventional pressure-sensitive adhesive transfer sheets and tapes, the pressure-sensitive adhesive layer has a small thickness, and the color of the pressure-sensitive adhesive composition is transparent or translucent. It was very difficult to determine whether or not the image was transferred to the medium. According to the present invention, at the time of attaching a colored pressure-sensitive adhesive transfer sheet or tape, the pressure-sensitive adhesive itself is colored, or a colored printing layer is provided between pressure-sensitive adhesive layers having a multi-layer structure, thereby providing a conventional weak point. Has been resolved, and the sticking status can be determined at a glance.

Further, a pattern and / or a character and / or a halftone dot and / or a figure or the like is formed on the peelable sheet to form an adhesive layer, or between the adhesive layers having a multilayer structure. By providing a colored printing layer or the like as described above, by coloring the colored pressure-sensitive adhesive transfer sheets and tapes of the present invention, a colorful pressure-sensitive adhesive transfer sheet and tapes unprecedented. Manufacturing has become possible. Further, by sandwiching a colored print layer of a popular character, a character, a figure, or the like with an adhesive layer, a new marketable product can be provided as a character product and a product for sales promotion.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing another embodiment of the present invention.

FIG. 3 is a front view showing another embodiment of the present invention.

FIG. 4 is a perspective view showing another embodiment of the present invention.

FIG. 5 is a front view showing another embodiment of the present invention.

FIG. 6 is a perspective view showing another embodiment of the present invention.

FIG. 7 is a sectional view showing another embodiment of the present invention.

FIG. 8 is a perspective view showing another embodiment of the present invention.

[Explanation of symbols]

1, 11, 21, 31, 41, 51, 61 Releasable sheet 2, 12, 22, 32, 42, 52, 62 Releasable sheet 3, 13, 23, 33, 43, 53, 63 Adhesive layer 34, 44, 54, 64 Colored printing layer 35, 45, 55, 65 Adhesive layer

Claims (5)

[Claims] 1. A colored pressure-sensitive adhesive transfer sheet or tape in which a pressure-sensitive adhesive layer is colored in a transfer sheet or tape having a pressure-sensitive adhesive layer formed on a release sheet. 2. The coloring according to claim 1, wherein the colored pressure-sensitive adhesive layer is formed so as to model a picture and / or a character and / or a halftone dot and / or a figure. Adhesive transfer sheet or tape. 3. The colored pressure-sensitive adhesive transfer sheet or tape according to claim 1, wherein the pressure-sensitive adhesive layer is formed of a plurality of layers, and at least one of the layers is colored. 4. The colored pressure-sensitive adhesive transfer sheet or tape according to claim 1, wherein the pressure-sensitive adhesive layer is formed of a plurality of layers, and a colored printing layer is provided between the pressure-sensitive adhesive layers. 5. The colored pressure-sensitive adhesive transfer sheet or tape according to claim 3, wherein the colored layer takes a pattern and / or a character and / or a halftone dot and / or a figure. .