JP3368910B2 - Laminating adhesive sheet and method for producing the same - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lap adhesive sheet having a transfer hole and a predetermined surface formed by applying a pressure-sensitive adhesive which can be peeled off after gluing, and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, a sheet coated with a pressure-sensitive adhesive is folded, cut, and the like, and then a predetermined pressure is applied to the sheet so that the laminated surface is adhered to a postcard or a card. Laminated adhesive sheets for making are known. In general, this type of sheet has printed parts such as various entry fields, perforations or transfer holes, etc., and the transfer holes are used to transfer specified items while transferring with a tractor device, and the marginal part is cut and removed. At the same time, the predetermined surfaces are overlapped and pressure-bonded to form a postcard or card. Further, FIG. 8 is an enlarged view showing a conventional transfer hole 80. In order to facilitate the transfer by the tractor device, fine notched notches 81 are formed on the peripheral edge so that the tractor pin can be smoothly engaged and disengaged. There is.

At the time of forming the above-mentioned transfer hole, the state where the hole is incompletely formed and a part of the transfer hole is connected to the marginal portion occasionally occurs. In such a state, the applied pressure sensitive pressure is applied. There is the inconvenience that the adhesive adheres to the tractor pin, the feed roller, etc., and a transfer error occurs. Further, the scraps from the transfer holes are generally discharged from the punching device by a vacuum suction force, but if pressure-sensitive adhesive is applied to the scraps, the scraps are removed by the pressing force of the pin for punching. There is also an inconvenience that they are pressure-bonded to each other and clogged, and the above-mentioned vacuum suction force becomes ineffective. And
Even if the pressure-sensitive adhesive is a peelable adhesive, once it is adhered, it cannot be peeled off unless a force is manually applied, so that it has the same inconvenience as a normal pressure-sensitive adhesive. Will occur. In the past, in order to avoid such inconvenience, ink for suppressing the adhesive force has been applied to the entire marginal portion including perforations.

[0004]

However, according to the above-mentioned conventional improvement measures, the ink which suppresses the adhesive force is applied to the entire marginal portion, so that the paper quality of the sheet is changed and the hardness is increased, so that the feedability is improved. Deteriorates, and smooth transfer operation becomes impossible, and when the above-mentioned ink is water-soluble, there is an inconvenience that wrinkles occur on the sheet due to the wide application range. A main object of the present invention is to provide a lap-bonding adhesive sheet and a method for producing the same, which solves such inconvenience.

Further, in the prior art, since the notch 81 is formed on the peripheral edge of the transfer hole 80, there is a disadvantage that paper powder is likely to be generated at each transfer hole 80 portion when coming into contact with the tractor pin. A further object of the present invention is to provide a lap adhesive sheet that eliminates such disadvantages.

[0006]

In order to achieve the above-mentioned main object, the present invention provides a method in which a predetermined stacking surface coated with a pressure-sensitive adhesive which can be peeled off after bonding is superposed and pressed. In a lap-adhesive sheet for releasably adhering lap surfaces, an ink that suppresses the adhesive force is applied only around the transfer hole of the marginal portion of the pressure-sensitive adhesive. When the pressure sensitive adhesive is applied to both the front and back surfaces of the sheet, the ink that suppresses the adhesive force is also applied to both the front and back surfaces around the transfer holes.

The above-mentioned ink which suppresses the adhesive force may be an ordinary printing ink, or a component which reduces the adhesive force may be further added to the ink.
For example, silicone resins, fluorine compounds, waxes, etc. may be mentioned. Of these components, those that are liquid at room temperature or under heating can be used as they are as ink, but they are usually dissolved or dispersed in water or a non-aqueous medium before use. Moreover, various known auxiliaries such as compounds and driers are added as necessary. The non-aqueous medium may be selected from known ones as appropriate, and examples thereof include benzene, toluene, hexane, and methyl methacrylate.

Further, in order to achieve the above-mentioned further object, the present invention is that the transfer hole is formed in a circle having no notch at its peripheral edge. In addition, in this specification, a circle is used to mean an ellipse or an ellipse.

In the above-mentioned sheet for superposition and adhesion, a pressure-sensitive adhesive is applied to a predetermined portion of the sheet, and the transfer hole to which the pressure-sensitive adhesive has been applied is adhered so as to cover a wider area than the transfer hole. After applying a force-suppressing ink, a transfer hole is formed in the predetermined portion so that the ink exists only around the transfer hole. The perforation may be formed at an appropriate time before and after the transparent work of the transfer hole.

[0010]

Since the ink for suppressing the adhesive force is applied not only to the entire marginal portion but only to the periphery of the transfer hole, the paper quality of the sheet does not change. Further, if the transfer hole has a circular shape with no notch, no paper dust is generated during transfer by the tractor pin.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention applied to a postcard sheet will be described below with reference to FIGS. Here, FIG. 1 is a plan view of the lap-bonding sheet, FIG. 2 is an enlarged plan view of the transfer hole, FIGS. 3 to 5 show a process of making the lap-bonding sheet, and FIG. 5 is an enlarged cross-sectional view showing a part of the sheet in the state where the agent is applied, FIG. 4 is an enlarged cross-sectional view showing a part of the sheet in which the ink for suppressing the adhesive force is applied to a portion where the transfer holes are to be provided, FIG.
FIG. 6 is an enlarged cross-sectional view showing a part of a sheet in which transfer holes and perforations are formed, and FIG. 6 is a cross-sectional view showing a state in which a unit sheet is formed and then laminated and bonded to form a postcard.

As shown in FIG. 1, the laminated adhesive sheet 1 is in a continuous state in which a large number of unit sheets 3 are connected to each other through folding and cutting perforations 2, and the perforating cut sheets are provided on both sides in the width direction. There is provided a marginal portion 6 in which a large number of transfer holes 5 are transparently arranged at equal intervals with 4 as a boundary. Each unit sheet 3 is composed of an upper paper piece 9, a middle paper piece 10, and a lower paper piece 11 which are sectioned and connected by the folding perforations 7 and 8.

As is clear from FIGS. 3 to 6, the front and back surfaces of the superposition adhesive sheet 1 are not adhered in a normal state, but are adhered to each other when a predetermined pressure or more is applied. A transparent pressure sensitive adhesive 12 is applied over the entire surface. The pressure-sensitive adhesive 12 can be peeled off even after adhesion. For example, natural rubber latex obtained by graft-copolymerizing 100 parts by weight of natural rubber with 2 parts by weight of styrene and 10 parts by weight of methyl methacrylate. To 5 parts by weight of a terpene resin-based tackifier to give a pressure-sensitive base adhesive.
20 parts by weight of silica gel having an average particle size of 5 μm is added.

As is apparent from FIG. 2, the shape of each transfer hole 5 is a circle with no notch on the periphery. 2 and FIG.
As can be understood from the above, the ink 13 for suppressing the adhesive force of the pressure-sensitive adhesive 12 is applied around each of the transfer holes 5 (in FIG. 2, the applied portion is indicated by hatching). This ink 13
Is an ordinary printing ink from which pigments have been removed, is almost transparent, does not cause a visually uncomfortable feeling, and does not impair the appearance.

As shown in FIG. 1, the surface of the top paper piece 9 serves as an address display surface, and the address 14 is printed by a printer linked to the electronic computer (see FIG. 6). Further, the surfaces of the inner paper piece 10 and the lower paper piece 11 serve as information display surfaces, and similarly, the printer prints the concealment information 15, for example, the notification information such as the deposit balance, the amount of the fixed deposit and the maturity date (see FIG. 6). In these printing operations, since the transfer hole 5 is formed in a circle with no notch on the periphery,
Paper dust is not generated, and the ink 13 is peeled off, so that it does not become dirty.

Next, with reference to FIGS. 3 to 5, a method of producing the above-described sheet 1 for superposing and bonding will be described.
First, as shown in FIG. 3, the pressure-sensitive adhesive 12 is applied to both front and back surfaces of a continuous sheet. Then, as shown in FIG. 4, ink 13 that suppresses the adhesive force is applied in a circular shape to the portion where the pressure-sensitive adhesive 12 is applied so that the transfer hole is to be transparently provided so as to cover a wider area than the transfer hole 5. At this time, the entry fields for displaying the address 14 and the hidden information 15 are also printed (see FIG. 1).
reference). Next, as shown in FIG. 5, a transfer hole 5 is provided at a predetermined portion to which the ink 13 is applied, and each cutting perforation 4, folding / cutting perforation 2 and folding perforation 7,
8 is formed to form a laminated adhesive sheet 1. The scraps generated when the transfer hole 5 is provided are
Since the ink 13 covers both front and back surfaces, the ink 13 is smoothly discharged by the vacuum suction force without being pressure-bonded to each other.

FIG. 6 shows the above-mentioned sheet 1 for superposition and adhesion.
While transferring, the address 14 and the concealment information 15 are printed at a predetermined position by a printer linked to a computer, the marginal portion 6 is cut and removed by the perforation 4 for cutting, and the unit is separated by the perforation 2 for folding and cutting. The sheet 3 is shown in a state in which a postcard 16 is formed by folding the sheet 3 into three Z-shapes with the folding perforations 7 and 8. That is, the back surface of the top paper piece 9 and the back surface of the inside paper piece 10 are again
The surface of 0 and the surface of the lower paper piece 11 are folded so as to face each other, and each paper piece 9, 10, 11 is entirely adhered and integrated by applying a predetermined pressure or more. is there. Therefore, in this illustrated state, it can be used like a normal postcard, and the concealment information 15 cannot be seen from the outside. In the transfer during printing, the print 13 is provided only around the transfer hole 5, so that the hardness of the sheet does not increase, and a suitable transfer operation is performed without deterioration of feed suitability.

On the other hand, when the addressee who receives the postcard 16 looks at the concealment information 15, the bottom paper piece 11 may be separated from the middle paper piece 10. Then, since the pressure-sensitive adhesive 12 has a weak adhesive force and can be peeled off, the lower paper piece 11 is peeled from the inner paper piece 10, and the concealment information 15 displayed on the inner paper piece 11 and the lower paper piece 10 can be read. it can.

In the above-described embodiment, the unit sheet 3 is folded into a Z-shape to form the postcard 16. However, the mode of stacking is not limited to the Z-shaped three-fold, but a piece of paper in the middle. On the other hand, the left and right paper pieces may be sequentially folded, folded in two, or cut and stacked. Moreover, the application process of the ink 13 can also be performed as a process different from other printing portions. Further, depending on the mode of superposition, the pressure-sensitive adhesive 12 may be applied only on one surface instead of on both sides. In this case, the ink 13 is also provided only on the portion of the pressure-sensitive adhesive 12 application surface where transfer holes are to be formed. It's enough. Furthermore, the coating shape of the ink 13 is circular, triangular,
It may be rectangular or the like, and is not limited to a special shape. Further, the adhesive strength of the peelably adhered portion does not have to be uniform, and may be partially strong or weak. Further, the shape of the transfer hole 5 may be an ellipse as shown in FIG. Furthermore, it is preferable that each transfer hole 5 is set to be slightly larger than the normal size for the tractor pin, because the engagement and disengagement with the tractor pin becomes smoother. Further, a mark or the like for instructing the peeling may be provided on the back surface side of the lower paper piece 11 by printing, or an unbonded portion may be formed at a predetermined corner, or a slit may be formed at the corner of the lower paper piece 11 for peeling. You may comprise so that operation can be performed easily. Furthermore, it goes without saying that the present invention can be applied to cards and the like in addition to the postcard 16.

[0020]

As has been described in detail above, according to the present invention, the ink for suppressing the adhesive force of the pressure-sensitive adhesive is applied only around the transfer hole, which adversely affects the material of the sheet. No deterioration of feedability, wrinkles do not occur even if water-soluble ink is used, and almost no ink application part is extracted as a transfer hole, so the color of the ink does not damage the appearance. In addition, since the scraps in the transfer holes do not adhere to each other under pressure, it is possible to smoothly and reliably discharge the scraps by a vacuum suction force, etc. Has many effects that paper dust is not generated during transfer by the tractor pin, and in addition, the manufacturing method is easy.

[Brief description of drawings]

FIG. 1 is a plan view of a superposition adhesive sheet.

FIG. 2 is an enlarged plan view of a transfer hole.

FIG. 3 is an enlarged cross-sectional view showing a part of the sheet with a pressure-sensitive adhesive applied.

FIG. 4 is an enlarged cross-sectional view showing a part of the sheet in a state where ink for suppressing the adhesive force is applied to a portion where the transfer holes are to be transparently provided.

FIG. 5 is an enlarged cross-sectional view showing a part of the sheet in which a transfer hole and perforations are formed.

FIG. 6 is a cross-sectional view showing a state in which a postcard is formed by overlapping and adhering.

FIG. 7 is an enlarged plan view showing another embodiment of the transfer hole.

FIG. 8 is an enlarged plan view showing a conventional example of a transfer hole.

[Explanation of symbols]

1 Sheets for overlapping adhesion 3 unit sheet 5 transfer holes 6 marginal section 7,8 Perforations for folding 9 Paper pieces 10 Middle paper pieces 11 bottom paper pieces 12 Adhesive 13 ink 14 Address 15 Concealment information

Claims (4)

(57) [Claims] 1. A lap-adhesive sheet for peelably adhering the lapped surface by laying and pressing a predetermined lapped surface coated with a pressure-sensitive adhesive that can be peeled after the gluing, An overlay-adhesive sheet, wherein ink for suppressing the adhesive force of the pressure-sensitive adhesive is applied only around the transfer hole of the marginal portion to which the pressure-sensitive adhesive is applied. 2. A pressure-sensitive adhesive is applied to both front and back surfaces of the sheet, and ink for suppressing the adhesive force is also applied to the periphery of the transfer hole .
Bonding sheet overlay according to claim 1, characterized in that applied to both sides of the body. 3. The lapped adhesive sheet according to claim 1 or 2, wherein the transfer hole is a circle having no notch on the peripheral edge. 4. A pressure-sensitive adhesive is applied to a predetermined portion of the sheet, and an ink that suppresses the adhesive force is applied to a portion where the pressure-sensitive adhesive is applied so that the area where the transfer hole is to be transparent is spread over a wider area than the transfer hole. After that, make a transfer hole in the planned part and only in front of it.
A method for producing a sheet for superposition adhesion, which is characterized in that the ink is transparently provided so that the ink exists .