JPH0881657A - Adhesive tape and method for producing the same - Google Patents

Abstract

PURPOSE: To provide an adhesive tape having an information-displaying part formed on the surface and enabling to produce many kinds of products in small lots, and also to provide the method for producing the same. CONSTITUTION: In the adhesive tape 10, the pressure-sensitive adhesive layer 16 is formed on the back surface of a long tape base material 14, and a display part 12 and a peeling layer 18 are formed on the front surface of the base material 14. The peeling layer 18 is placed on the outer side, and the pressure- sensitive adhesive layer 16 and the peeling layer 18 are adjacently wound and superposed on each other into a roll-like shape. The method for producing the adhesive tape comprises a process for forming the pressure-sensitive adhesive layer on the back surface of the long tape base material a process for forming the peeling layer on the front surface of the tape base material, a process for winding and superposing the tape base material into a roll-like shape wherein the pressure-sensitive adhesive layer and the peeling layer are placed on the inner side and the outer side, respectively, in a mutually adjacent state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive tape and a method of manufacturing the same, and more particularly to a new adhesive tape having a display portion for displaying information on its surface and a method of manufacturing the same.

[0002]

2. Description of the Related Art A conventional adhesive tape is obtained by applying a pressure-sensitive adhesive to the back surface of a belt-shaped material such as vinyl chloride or cellophane, and winding it.

[0003]

However, in the conventional adhesive tape, the display portion for displaying appropriate information is not formed on the surface thereof, and a large-scale device is required to manufacture it. Therefore, it was only possible to deal with relatively large lots. However, due to the diversification of consumers in recent years, there is a growing demand for a display unit having information displayed on the surface of an adhesive tape, and a demand for a large variety of products in a small lot. There is. Therefore, a main object of the present invention is to provide an adhesive tape having a display portion for displaying information formed on the surface thereof, capable of producing a large number of small lots of various kinds, and a method of manufacturing the same.

[0004]

The adhesive tape according to claim 1 has a pressure-sensitive adhesive layer formed on the back surface of a long tape base material, and a display portion formed and peeled off on the front surface of the tape base material. A layer was formed, and the tape base material was wound in a roll shape with the pressure-sensitive adhesive layer and the release layer adjacent to each other, with the back surface on which the pressure-sensitive adhesive layer was formed as the inside and the release layer side as the outside. , Adhesive tape.

The adhesive tape according to claim 2 is the adhesive tape according to claim 1, wherein a thermosensitive coloring layer forming a display portion is formed on the surface of the tape base material.

A method of manufacturing an adhesive tape according to a third aspect of the present invention comprises a step of forming a pressure-sensitive adhesive layer on the back surface of a long tape base material, a step of forming a display portion on the front surface of the tape base material, and a tape base material. And a step of forming a release layer on the surface of the tape base material, the back surface on which the pressure-sensitive adhesive layer is formed is the inner side, and the release layer side is the outer side, and the pressure-sensitive adhesive layer and the release layer are adjacently rolled. It is a method for producing an adhesive tape, which comprises a step of winding the adhesive tape.

[0007]

According to the invention of claim 1, in the long tape substrate, the back surface on which the pressure-sensitive adhesive layer is formed is the inner side, and the release layer side is the outer side, and the pressure-sensitive adhesive layer and the release layer. And (2) are unwound from a wound material that is wound up in a roll shape and attached to the adherend with a pressure-sensitive adhesive layer.

According to the second aspect of the invention, the thermosensitive coloring layer on the surface of the tape substrate develops thermosensitive color.

According to the invention of claim 3, in the long tape base material, the back surface on which the pressure-sensitive adhesive layer is formed is the inside,
With the release layer side as the outside, the pressure-sensitive adhesive layer and the release layer are unwound from a roll wound adjacent to each other and attached to an adherend with the pressure-sensitive adhesive layer. .

[0010]

According to the invention of claim 1, since the release layer is formed on the surface of the tape base material and adjacent to the pressure-sensitive adhesive layer, it is formed on the back surface of the tape base material. The pressure-sensitive adhesive layer and the release layer formed on the surface of the adhesive tape can be rewound even if they are wound so as to be temporarily adhered to each other. You can cut and use it.

According to the invention of claim 2, the tape substrate is
Since the thermosensitive coloring layer is formed on the surface on the side opposite to the pressure-sensitive adhesive layer, it is possible to form the display portion by printing relatively easily with a thermal printer or the like.

According to the third aspect of the present invention, the peeling layer is formed on the surface of the tape substrate, which is adjacent to the pressure-sensitive adhesive layer. Even if the adhesive tape is rolled up so that the pressure-sensitive adhesive layer and the release layer formed on the surface of the adhesive layer are adjacently and temporarily attached, they can be rewound and cut from the long adhesive tape one by one. Can be used.

The above-mentioned objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of the embodiments with reference to the drawings.

[0014]

1 is a view showing an adhesive tape according to an embodiment of the present invention, in which (A) is a perspective view thereof and (B) is a sectional view thereof. FIG. 2 is an illustrative view showing one example of the manufacturing method of the example shown in FIG.

The long adhesive tape 10 of this embodiment has a plurality of display portions 12 continuously formed in a strip shape, and each display portion 12 is formed by cutting at the boundary of each display portion 12. It is used as a tape.

Then, a pressure-sensitive adhesive layer 16 is formed on the back surface of the long tape base material 14, a release agent layer 18 is formed on the front surface side of the tape base material 14, and the tape base material 14 is further formed. On the front surface side, between the tape base material 14 and a part of the surface of the tape base material 14, a printing layer 20 forming a display portion is formed. The print layer 20 includes the display units 12
The display portions 12 are formed intermittently at regular intervals between the display portions 12 so as to form the display portions 12 at the boundaries.

As shown in FIG. 1 (A), the adhesive tape 10 has the release agent layer 18 before being cut and used.
The tape base material 14 is wound into a roll so that the side and the pressure-sensitive adhesive layer 16 face each other and are temporarily attached.

In this embodiment, the thermosensitive coloring layer 2 forming the display portion is formed on the surface of the tape base material 14 on the release agent layer 18 side.
2 is formed.

The long tape base material 14 in this embodiment is, for example, a plastic film or sheet of paper, synthetic paper, cellophane, polystyrene, polyester or the like, or a long strip of aluminum foil or the like. In order to cut the continuous strip-shaped adhesive tape 10 between the display portions 12, it is necessary to use a material that can be cut by hand or by a mechanical device such as a cutter. In addition, perforations (not shown) such as perforations may be formed at predetermined intervals so that the tape can be cut into predetermined strips.

The pressure-sensitive adhesive layer 16 formed on the back surface of the tape substrate 14 is for giving an adhesive force to the adhesive tape 10. For example, a known adhesive such as an acrylic copolymer resin or a rubber adhesive is used. A pressure-sensitive adhesive is used.

The thermosensitive color forming layer 22 formed on the surface side of the tape substrate 14 is formed by coating and drying a thermosensitive color forming agent or the like composed of a mixture of a transparent or monochromatic leuco dye, an acidic substance and a binder. To be done. The thermosensitive coloring layer 22 can be colored by heating it with a thermal head of a printer or the like.

On the surface of the tape base material 14 on the thermosensitive coloring layer 22 side, there is formed a printing layer 20 for forming the respective display portions 12 at regular intervals. The printing layer 20 is formed by printing using a general printing ink by a known printing method such as planographic printing, letterpress printing or offset printing.

The release agent layer 18 formed on the surface side of the tape base material 14, that is, on the surfaces of the thermosensitive coloring layer 22 and the printing layer 20, is cured at a temperature which does not affect the thermosensitive coloring layer 22, for example. It is formed by printing and applying a release agent such as a silicone resin.

In this embodiment, as the release agent constituting the release agent layer 18, ultraviolet rays or electron beams such as UV silicon (so-called ultraviolet ray curing type silicon) and EB silicon (so-called electron beam curing type silicon) are used. It is preferable to select a material which is cured by the method and does not affect the thermosensitive coloring layer 22.

Subsequently, an example of the manufacturing method shown in FIG. 1 will be described mainly with reference to FIG.

First, the roll-shaped laminate 30 obtained by winding the tape base material 14 in the form of a laminated roll is loaded into the manufacturing apparatus shown in FIG. 2, and the laminate 30 is rewound to form the printing layer 20. Of the printer 100. The printing apparatus 100 prints each display unit 12, and prints an image line composed of characters such as a product name and an appropriate pattern by a known printing apparatus such as planographic printing, letterpress printing, or offset printing. is there.

Subsequently, the laminate 30 having the print layer 20 formed thereon is guided to a release agent coating device 110 for forming the release agent layer 18 on the surface of the print layer 20 of the tape substrate 14. The release agent applying device 110 includes a main roller 112.
a and a roller 112b provided so as to face the main roller 112a. And the main roller 112a is
The lower part thereof is immersed in the release agent 24 stored in the pan 114, and the release agent 24 is applied by the main roller 112a to the surface of the label base material 14 of the laminate 30 sandwiched between the main roller 112a and the roller 112b. To be done. And
The laminate 30 printed with the release agent 24 is moved to a dryer 116 including a heater, for example. Dryer 116
Then, the release agent 24 printed and applied to the laminate is dried to form the release agent layer 18.

Next, the pressure-sensitive adhesive 26 for forming the pressure-sensitive adhesive layer 16 is printed / applied to the back surface of the tape base material 14. This adhesive application device 120 has two rollers 122a and 122b is included. Roller 122a
The lower part of the is immersed in the pressure sensitive adhesive 26 stored in the pan 124. Therefore, the rollers 122a and 1
By rotating 22b, the pressure-sensitive adhesive 26 is applied by printing onto the back surface of the tape base material 14 guided to that portion.

As the adhesive coating device, a coating device such as a gravure roll coater, a reverse roll coater or an air knife coater may be used, or a known printing machine such as a screen printing machine may be used.

Then, the tape base material 24 on which the pressure-sensitive adhesive 26 is applied by printing is guided to a dryer 126 including a heater, for example. In the dryer 126, the pressure sensitive adhesive 26 printed and applied on the tape base material 14 is dried to form the pressure sensitive adhesive layer 16. As the adhesive 26, when using an adhesive containing a water-soluble resin such as EVA-based, vinyl acetate-based, or acrylic-based or a solvent-based adhesive composed of vinyl chloride, urethane, acrylic, or the like, a dryer is used, and When using EVA hot melt adhesive,
Use a cooler.

In this way, the tape substrate 14 on which the printing layer 20, the release agent layer 18 and the pressure-sensitive adhesive layer 16 are formed.
Are slit by a slitter 128 so as to have the width of the adhesive tape 10 as a final product in a laminated state, and after slitting, they are wound in a roll shape.

Next, an adhesive tape which is another embodiment different from the example shown in FIG. 1 will be described.

FIG. 3 is a sectional view of an adhesive tape as another embodiment. FIG. 4 is an illustrative view showing one example of the manufacturing method of the example shown in FIG.

In this adhesive tape 40, a release agent layer 48 is formed on the surface of a tape base material 44 unlike the example shown in FIG. Further, a printing layer 50 is formed on the surface of the release agent layer 48. However, the pressure-sensitive adhesive layer 46 is formed on the back surface of the tape base material 44 as in the example shown in FIG. 1, and the thermosensitive coloring layer 52 is formed on the front surface of the tape base material 44. This is similar to the example shown in FIG. Further, as the printing ink for forming the printing layer 50, it is necessary to select a printing ink having a peeling property itself.

The apparatus for manufacturing the adhesive tape 40 shown in FIG. 3 has a release agent applying device 110 as in the example shown in FIG. 4, which rewinds the wound tape base material 44 and releases the release agent on its surface. A curing device 13 for printing and applying 24 and curing the release agent 24 that is printed and applied.
The release agent layer 48 is cured with 0 to form the release agent layer 48, and the printing layer 50 is formed on the surface of the release agent layer 48 with the printing device 100 downstream thereof.

Further, an adhesive application device 120 for printing / applying the pressure-sensitive adhesive 26 forming the pressure-sensitive adhesive layer 46 is provided on the back surface of the tape base material 44, and the pressure-sensitive adhesive is applied by the adhesive application device 120. After the agent 26 is applied, it is dried by the dryer 126.

In the example shown in FIG. 4 as well, as in the example shown in FIG. 2, the tape base material 44 is slit by a slitter 128, which is a device for adjusting the width of the adhesive tape 40 to an optimum width, and wound in a roll shape. To be

[Brief description of drawings]

FIG. 1 is a diagram showing an adhesive tape that is an embodiment of the present invention, (A) is a perspective view thereof, and (B) is a sectional view thereof.

2 is an illustrative view showing one example of the manufacturing method of the example shown in FIG. 1. FIG.

FIG. 3 is a sectional view of an adhesive tape according to another embodiment.

FIG. 4 is an illustrative view showing one example of the manufacturing method of the example shown in FIG. 3;

[Explanation of symbols]

 10,40 Adhesive tape 12,42 Display section 14,44 Tape base material 16,46 Pressure-sensitive adhesive layer 18,48 Release agent layer 20,50 Printing layer 22,52 Thermosensitive coloring layer 24 Release agent 26 Pressure-sensitive adhesive 30 Laminate 100 Printing device 110 Release agent coating device 112a Main roller 112b Roller 114 Pan 116 Dryer 120 Adhesive coating device 122 Roller 126 Dryer 128 Slitter 130 Curing device

Claims (3)

[Claims] 1. A pressure-sensitive adhesive layer is formed on the back surface of a long tape base material, and a display portion is formed and a release layer is formed on the front surface of the tape base material. An adhesive tape in which a pressure-sensitive adhesive layer and a release layer are adjacent to each other and the back surface on which the pressure-sensitive adhesive layer is formed is the inner side and the release layer side is the outer side. 2. The adhesive tape according to claim 1, wherein a thermosensitive coloring layer forming a display portion is formed on the surface of the tape base material. 3. A step of forming a pressure-sensitive adhesive layer on the back surface of a long tape base material, a step of forming a display portion on the front surface of the tape base material, and a release layer on the front surface of the tape base material. A step of forming the tape base material, with the back surface on which the pressure-sensitive adhesive layer is formed being the inner side and the release layer side being the outer side, and winding the pressure-sensitive adhesive layer and the release layer adjacent to each other in a roll shape. A method for producing an adhesive tape, comprising: