JPH08134414A - Adhesive tape and its production - Google Patents

Abstract

PURPOSE: To obtain an adhesive tape which has information display parts formed on the surface and can be produced in various types and in small lots by forming a release agent layer on the surface of a tape base and rolling tape base in such a manner that the release agent layer and a pressure-sensitive adhesive layer are opposed to each other for temporary adhesion. CONSTITUTION: A pressure-sensitive adhesive layer 16 is formed on the releasable surface of a process sheet, and the layer 16 is put together with the rear of a long tape base 14 so that the layer 16 may be transferred and adhere to the rear of the tape base 14. Display parts 12 are formed at appropriate intervals on the surface of the tape base 14, over which a release agent layer 18 is formed. Only the process sheet is peeled off the surface of the layer 16 transferred to the rear of the tape base 14. The tape base 14 is rolled in such a manner that the layer 18 and the layer 16 are opposed to each other for temporary adhesion, thus giving an adhesive tape having information display parts 12 formed on the surface.

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 for manufacturing the same, and more particularly, for example, to a new adhesive tape having a display portion for displaying information formed on its surface and a method for manufacturing the same. .

[0002]

2. Description of the Related Art A conventional adhesive tape is formed by applying a pressure-sensitive adhesive to the back surface of a synthetic resin band material such as vinyl chloride or cellophane and winding it into a band shape.

[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 its surface and capable of producing a large number of small lots of various kinds, and a method of manufacturing the same.

[0005]

An adhesive tape according to claim 1 is formed on a front surface side of a tape base material, an adhesive layer formed by transferring to a back surface of the tape base material. And a display portion formed at an appropriate interval, and a release layer formed on the surface side of the tape base material, so that the release layer side and the adhesive layer side face each other and are temporarily attached, It is an adhesive tape in which a tape base material is rolled up.

The adhesive tape according to claim 2 is the adhesive tape according to claim 1, wherein the display portion has a print layer formed on the surface of the tape base material and a release layer formed on the surface of the print layer.

In the adhesive tape of the third aspect, the display portion has the print layer formed on the surface of the tape base material and on the surface of the peeling layer, and is formed by the printing ink having excellent peelability. The adhesive tape according to claim 1.

In the adhesive tape of claim 4, the tape base material is
It is an adhesive tape in any one of Claim 1 thru | or 3 with which the thermosensitive coloring layer which forms a display part was formed in the surface on the opposite side to an adhesive layer.

According to a fifth aspect of the present invention, in the method for producing an adhesive tape, a step sheet having at least one surface thereof having a releasability is prepared, and a pressure-sensitive adhesive layer is formed on the releasable surface of the step sheet; Step 2 of preparing a long tape base material having a back surface to which the agent layer is transferred and adhered, and superposing the back surface of the tape base material and the pressure-sensitive adhesive layer of the process sheet on the front surface of the tape base material. A step 3 of forming a release layer, a step 4 of releasing only the process sheet from the transferred pressure-sensitive adhesive layer surface on the back surface of the tape substrate, and a tape so that the release layer and the pressure-sensitive adhesive layer face each other temporarily A method of manufacturing an adhesive tape, the method including the step 5 of winding a substrate.

In the method for producing an adhesive tape according to claim 6, step 1 includes the step of preparing a process sheet having a release property by printing / applying a release agent on the surface of the sheet. It is a method of manufacturing a tape.

In the method for producing an adhesive tape according to claim 7, in step 2, a wide and long tape base material is prepared, and the back surface of the tape base material and the adhesive layer of the process sheet are overlapped,
Including a step of slitting to an appropriate width and winding up,
It is a manufacturing method of the adhesive tape according to claim 5.

The method of manufacturing an adhesive tape according to claim 8, wherein steps 3 and 4 include the steps of rewinding the laminated tape substrates to form a printing layer and / or a peeling layer. Is a method for manufacturing the adhesive tape.

[0013]

According to the invention of claim 1, the release layer side formed on the front surface side of the tape base material and the adhesive layer side formed on the back surface side of the tape base material face each other and are temporarily attached. Since the tape base material is wound, it is rewound.

According to the second aspect of the invention, since the release layer is formed on the surface of the tape base material and the surface of the printing layer forming the display portion, the tape base material that has been wound up is rewound. .

According to the third aspect of the present invention, the printing layer forming the display portion is formed on the surface of the peeling layer which is the surface of the tape base material, and is formed of the printing ink having excellent peeling property. Therefore, the wound tape base material is rewound.

According to the invention of claim 4, the tape substrate is
Since the thermosensitive coloring layer forming the display portion is formed on the surface opposite to the pressure-sensitive adhesive layer, color is developed by heating.

According to the fifth aspect of the present invention, the tape base material is wound so that the release layer side and the adhesive layer side of the tape base material face each other and are temporarily adhered to each other. It is rewound.

According to the invention of claim 6, since the pressure-sensitive adhesive layer is formed by the process sheet having the release property printed and applied with the release agent on the surface of the sheet, the pressure-sensitive adhesive layer is a long label substrate. When superposed on the material, it transfers from the process sheet to the surface of the long tape substrate.

According to the invention of claim 7, the pressure-sensitive adhesive layer formed on the process sheet is transferred to the back surface of the tape substrate.

According to the invention of claim 8, the roll-shaped laminate in which the tape base material and the process sheet are laminated with the pressure-sensitive adhesive layer sandwiched is unwound to form a printing layer and / or a peeling layer.

[0021]

According to the invention of claim 1, since the pressure-sensitive adhesive layer is formed by transferring to the back surface of the tape substrate, the pressure-sensitive adhesive layer can be formed on the surface of the tape substrate at room temperature. Therefore, when selecting a tape base material, even an ultrathin tape with relatively low heat resistance can be used, and the solvent of the adhesive in the state of emulsion before originally forming the adhesive layer can be used. Since it is removed before transfer, the range of pressure-sensitive adhesives that form the pressure-sensitive adhesive layer can be expanded regardless of the properties of the label substrate. Further, in particular, a material such as thermal paper that develops heat can be selected as the tape base material, and it can be applied to any printer such as a printer that prints with a transfer foil that is relatively heated.

According to the second aspect of the invention, since the release layer is formed on the surface of the tape base material and the surface of the printing layer forming the display portion, the pressure-sensitive adhesive layer formed on the back surface of the tape base material. Even if the tape base material is wound so that the tape base material and the release layer formed on the surface thereof are opposed to each other and temporarily attached, the tape base material can be rewound and the adhesive tape can be cut and used.

According to the third aspect of the present invention, the printing layer forming the display portion is formed on the surface of the peeling layer which is the surface of the tape base material, and is formed of the printing ink having excellent peeling property. , Even if the tape base material is rolled up so that the release layer formed on the front surface side of the tape base material and the adhesive layer formed on the back surface side face each other and are temporarily attached, the tape base material can be rewound and bonded. The tape can be cut and used.

According to the invention of claim 4, the tape substrate is
Since the thermosensitive coloring layer forming the display portion is formed on the surface opposite to the pressure-sensitive adhesive layer, it becomes possible to print relatively easily with a thermal printer or the like.

According to the fifth aspect of the present invention, the surface of the long tape base material is provided with an adhesive layer formed on the releasable surface of the process sheet and a surface to which the adhesive layer is transferred and adhered. Are overlapped with each other, and the adhesive layer is transferred from the surface of the process sheet to the back surface of the long tape substrate at room temperature,
The pressure-sensitive adhesive layer can be formed even with an extremely thin tape substrate having relatively low heat resistance. In addition, since the solvent contained when the pressure-sensitive adhesive forming the pressure-sensitive adhesive layer is in a dissolved state is removed from the surface of the process sheet to form the pressure-sensitive adhesive layer, the solvent affects the label substrate. Will not be affected. Therefore, the tape substrate and the pressure-sensitive adhesive forming the pressure-sensitive adhesive layer can be selected in a very wide range, and it is suitable for the production of a wide variety of products in a small amount. Also, the process sheet is
Since it can be used many times, it is possible to reuse resources without becoming garbage.

According to the sixth aspect of the present invention, if the pressure-sensitive adhesive layer is formed on the releasable surface of the process sheet and the pressure-sensitive adhesive layer is transferred and adhered to the back surface of the long tape base material to be adhered. By the action of the release agent, the adhesive layer can be transferred from the process sheet to the back surface of the long tape base material.

According to the seventh aspect of the invention, a wide and long tape base material and a process sheet are prepared, and they are laminated with an adhesive layer, and they are slit to an appropriate width. By forming the tape base material
The adhesive layer that is formed on the peelable surface of the process sheet can be formed by leaving the left and right edges of the process sheet slightly, and the wasteful parts on both side edges are small, and the width of the initial target width can be reduced. This is extremely useful because it allows more tape substrates to be formed.

According to the invention of claim 8, in addition to the effect of claim 7, a printing layer and / or a peeling layer can be appropriately formed at an initial target portion,
Extremely useful.

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

[0030]

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. 2 and 3
FIG. 3 is an illustrative view showing one example of a manufacturing method of the example shown in FIG.
FIG. 2 is a diagram showing the first half of the process, and FIG. 3 is a diagram showing the second half of the process.

The adhesive tape 10 of this embodiment has a plurality of display portions 12 formed intermittently, and is used by cutting at the boundaries of the respective display portions 12.

Then, the pressure-sensitive adhesive layer formed by transferring to the back surface of the long tape base material 14, that is, the adhesive layer 16 which is adhesive at room temperature and adheres to the adherend with a light pressure.
Is formed, a release agent layer 18 that is a release layer is formed on the front surface side of the tape base material 14, and further on the front surface side of the tape base material 14 between the tape base material 14 and the tape base material 14. The printing layer 20 is formed on a part of the surface.
The print layer 20 is intermittently formed at regular intervals between the display units 12 so that the display units 12 are formed at appropriate intervals.

As shown in FIG. 1A, the adhesive tape 10 is a tape base so that the release agent layer 18 side and the adhesive layer 16 face each other and are temporarily attached before being cut and used. The material 14 is wound in a roll shape. In this embodiment, a thermosensitive coloring layer 22 forming a display portion is formed on the surface of the tape base material 14 on the release agent layer side 18 side.

In this embodiment, the long tape base material 14 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 at each display portion 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 by transferring to the back surface of the tape base material 14 is for giving an adhesive force,
For example, a known adhesive such as an acrylic copolymer resin or a rubber adhesive is used.

The thermosensitive coloring layer 22 formed on the surface side of the tape substrate 14 is formed by applying and drying a thermosensitive coloring agent containing a mixture of a transparent or monochromatic leuco dye, an acidic substance and a binder. It In this case, examples of the leuco dye include crisital violet lactone, 3-indolino-3-P-dimethylaminophenyl-6-dimethylaminophthalide, 3-diethylamino-7-chlorofluorane, and 2-diethylamino-7.
-Cyclohexylaminofluorane, 3-diethylamino-5-methyl-7-t-butylfluorane, 3-diethylamino-6-methyl-7-anilinofluorane, 3
-Diethylamino-6-methyl-7-P-butylanilinofluorane and the like.

As the acidic substance, for example, 2,
2-bis (4'-oxyphenyl) propane, 4-phenylphenol, 4-hydroxyacetophenone, 2,
2'-dihydroxydiphenyl, 2,2'-methylenebis (4-methyl-6-t-butylphenol), 4,
4'isopropylidenediphenol, 4,4'-isopropylidene bis (2-chlorophenol), 4,4'-
Isopropylidene bis (2-methylphenol), 4,
4'-ethylenebis (2-methylphenol), 4,
4'-thiobis (6-t-butyl-3-methylphenol) and the like can be mentioned.

Further, as the binder, for example, polyvinyl alcohol, methoxy cellulose, hydroxyethyl cellulose, carboxymethyl cellulose, polyacrylamide, polyacrylic acid, starch, gelatin,
Examples thereof include water-soluble or aqueous emulsions of polystyrene, vinyl chloride-vinyl acetate copolymer and the like. 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 further formed a printing layer 20 which forms each display portion 12 with a boundary between each display portion 12 separated. This print layer 20
Is formed by printing with a known printing method such as planographic printing, letterpress printing or offset printing using a general printing ink. The release agent layer 18 formed on the surface side of the tape substrate 14, that is, on the surfaces of the thermosensitive coloring layer 22 and the printing layer 20 can be cured at a temperature that 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 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. The release layer may be formed by laminating and adhering films or sheets having excellent releasability.

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

First, a long strip-shaped process sheet 24 made of paper, film, sheet-shaped plastic, or the like, which is rolled up in a roll, is rolled up and prepared. The process sheet 24 is used only in the manufacturing process and does not remain in the completed adhesive tape 10. Then, a release agent such as a silicone resin or a fluorine resin is printed and applied on the surface of the process sheet 24 to form a release layer 24a having a release property.

Next, the release layer 24a of the process sheet 24
The adhesive 26 that forms the adhesive layer 16 is printed and applied on the surface of the adhesive coating device 100. The adhesive coating device 100 includes two rollers 102a and 102b. Roller 102
The lower part of a is immersed in the adhesive 26 stored in the pan 104. Therefore, the rollers 102a and 102
By rotating b, the pressure-sensitive adhesive 26 is applied by printing onto the surface of the release layer 24a of the process sheet 24 guided to that portion. As the adhesive coating device, a coating device such as a gravure roll coater, a reverse roll coater, an air knife coater or the like may be used, or a known printing machine such as a screen printing machine may be used.

The process sheet 24 to which the adhesive 26 is printed and applied is, for example, the dryer 10 including a heater.
Guided to 6. In the dryer 106, the adhesive 26 printed and applied on the process sheet 24 is dried to form the 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, use a dryer to remove rubber-based adhesive, When using an EVA hot-melt adhesive, a cooler is used.

On the release layer 24a side of the process sheet 24 on which the pressure-sensitive adhesive layer 16 is thus formed, the base paper 14a to be the tape base material 14 is laminated. Base paper 14a of tape base material 14
Is formed in the same width as the process sheet 24, and the thermosensitive coloring layer 22 is already formed on the surface of the base paper 14a of the tape base material 14.
Are formed. The thermosensitive coloring layer 22 is formed on the side opposite to the side of the pressure-sensitive adhesive layer 26 described above.

In this way, the process sheet 24 and the adhesive 26
The layered product of the above layer and the base paper 14a to be the tape base material 14 has a width which is approximately similar to the width of the adhesive tape 10 which is the final product in the laminated state before being led to the next process such as printing. Slit with a slitter 108 so that
After slitting, it is rolled up.

A laminate 30 formed by laminating and temporarily adhering the process sheet 24 and the continuous body of the tape base material 14 with a layer of the adhesive 26 is wound in a roll shape, and the laminate 30 is wound in a roll shape. In this state, the sheet is guided to the printing and stripping agent coating device in the next step shown in FIG.

Next, the roll-shaped laminate 30 wound into a laminated roll shape of the laminate 30 is loaded into the manufacturing apparatus shown in FIG. 3, and the laminate 30 is rewound to form the printing layer 20. Of the printer 110. This printing device 1
Reference numeral 10 is a unit for printing each display unit 12. For example, an image line composed of characters such as a product name and an appropriate design is printed on a lithographic printing plate,
Printing is performed by a known printing device such as letterpress or offset printing.

Subsequently, the laminate 30 having the print layer 20 formed thereon is guided to a release agent coating device 120 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 120 includes a main roller 122.
a and a roller 122b provided to face the main roller 122a. Then, the main roller 122a
The lower part is dipped in the release agent 32 stored in the pan 124, and the release agent 32 is applied by the main roller 122a to the surface of the tape base material 14 of the laminate 30 sandwiched between the main roller 122a and the roller 122b. To be done. And
The laminate 30 printed with the release agent 32 is moved to a dryer 126 including a heater, for example. Dryer 126
Then, the release agent 32 printed and applied to the laminate is dried to form the release agent layer 18. Then, the release agent layer 18
The adhesive tape 10 formed by laminating the laminated body 30 is then guided to the process sheet removing device 130. The process sheet removing device 130 includes a roller 132, and peels the process sheet 24 from the surface of the pressure-sensitive adhesive layer 16 of the laminate 30 and winds it into a roll for separate reuse.

On the other hand, the laminate forming the adhesive tape 10 is wound in a roll shape while cutting both side edges or one side edge with the slitter 140 so that the width of the adhesive tape is further optimized. However, the tape base material 14, the adhesive layer 16, the printing layer 20, and the thermosensitive coloring layer 22.
Die cutting may be performed so that only one is cut.

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

FIG. 4 is a sectional view of an adhesive tape as another embodiment. FIG. 5 is an illustrative view showing one example of the manufacturing method shown in FIG.

In this adhesive tape 50, a release agent layer 58 is formed on the surface of the tape base 54 unlike the example shown in FIG. Further, a printing layer 60 is formed on the surface of the release agent layer 58. However, the pressure-sensitive adhesive layer 56 is formed on the back surface of the tape base material 54 as in the example shown in FIG. 1, and the thermosensitive coloring layer 62 is formed on the front surface of the tape base material 54. This is similar to the example shown in FIG. Further, as the printing ink for forming the printing layer 60, it is necessary to select a printing ink which itself has a peeling property.

In the adhesive tape 50 shown in FIG. 4, the laminated body 70 of the tape substrate 54 and the processed sheet 64, which is the first half of the manufacturing process, is manufactured by the same apparatus as that shown in FIG. However, in the manufacturing apparatus which is responsible for the latter half of the manufacturing method of the example shown in FIG. 4, the releasing agent 72 is printed and applied on the surface of the tape base material 54 of the laminate 70 by the releasing agent applying device 220 as in the example shown in FIG. In addition, the release agent 72 that has been printed and applied is cured by the curing device 222 for curing to form the release agent layer 58, and the printing layer 210 is formed on the surface of the release agent layer 58 with the printing device 210 downstream thereof. Is configured to.

In the example shown in FIG. 5, unlike the example shown in FIG. 3, the slitter 240, which is an apparatus for adjusting the label base material 54 to the optimum width of the label continuum 50, has a process sheet removing device 230. The slit 64 is provided downstream of the pressure-sensitive adhesive layer 56 immediately before being wound into a roll so as to slit after being peeled off from the pressure-sensitive adhesive layer 56.

[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, showing the first half of the process. FIG.

FIG. 3 is an illustrative view showing one example of the manufacturing method of the example shown in FIG. 1, and shows the latter half of the process.

FIG. 4 is a sectional view of an adhesive tape as another example.

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

[Explanation of symbols]

 10,50 Adhesive tape 12,52 Display part 14,54 Tape base material 16,56 Adhesive layer 18,58 Release agent layer 20,60 Printing layer 22,62 Thermosensitive coloring layer 24,64 Process sheet 24a Release layer 26 Adhesive 30, 70 Laminate 32, 82 Release agent 100, 200 Adhesive coating device 102 Roller 104 Pan 106 Dryer 108 Slitter 110, 210 Printing device 120, 220 Release agent coating device 122 Main roller 124 Pan 126 Dryer 130, 230 Process sheet Removal device 132 Roller 140,240 Slitter 222 Curing device

Claims (8)

[Claims] 1. A long tape base material, a pressure-sensitive adhesive layer formed by transferring to the back surface of the tape base material, formed on the front surface side of the tape base material, and formed at appropriate intervals. And a release layer formed on the front surface side of the tape base material, and the tape base material is rolled up so that the release layer side and the adhesive layer side face each other and are temporarily attached. Adhesive tape. 2. The adhesive tape according to claim 1, wherein the display portion has a print layer formed on the surface of the tape base material and a release layer formed on the surface of the print layer. 3. The display unit according to claim 1, wherein the print layer is formed on the surface of the tape base material, that is, on the surface of the release layer, and with a printing ink having excellent release properties. Adhesive tape. 4. The adhesive tape according to claim 1, wherein the tape base material has a thermosensitive coloring layer forming a display portion formed on the surface opposite to the pressure-sensitive adhesive layer. 5. A step 1 of preparing a process sheet having at least one surface thereof having releasability, and forming a pressure-sensitive adhesive layer on the releasable surface of the process sheet; and transferring and adhering the pressure-sensitive adhesive layer. Step 2 of preparing a long tape base material having a back surface to be overlapped with the back surface of the tape base material and the adhesive layer of the process sheet, and forming a release layer on the front surface of the tape base material. Three
And step 4 of peeling only the process sheet from the transferred pressure-sensitive adhesive layer surface of the back surface of the tape base material, and the tape base material so that the peeling layer and the pressure-sensitive adhesive layer face each other and are temporarily attached. A method of manufacturing an adhesive tape, which comprises: 6. The method for producing an adhesive tape according to claim 5, wherein step 1 includes a step of preparing a process sheet having a release property by printing and applying a release agent on the surface of the sheet. 7. The step 2 is to prepare a wide and long tape base material, superpose the back surface of the tape base material and the adhesive layer of the process sheet, slit the film to an appropriate width, and wind the tape. The method for manufacturing the adhesive tape according to claim 5, further comprising a step of overlapping. 8. The method for producing an adhesive tape according to claim 7, wherein steps 3 and 4 include a step of rewinding the laminated tape base materials to form a printing layer and / or a peeling layer.