JP2003072263A - Sheet for carrier for information - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve yield by preventing a sheet for a carrier for information from being elongated when it is pressed while water resistance is ensured in relation to the sheet for the carrier for information in which a laminating member is coated with a pressure-sensitive adhesive having freely releasable temporary adhesive function and it is laminated on a specified information. SOLUTION: As a base sheet 12 in the sheet for the carrier for information in which a specified part of the base sheet 12 (the first and the second sheets) is laminated with the laminating member through a pseudo-adhesive layer 17 with the temporary adhesive function to be made freely releasable, a resin film freely carrying the specified information and being a water-resistant member in which gap regions 18A and 18B are placed is used.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet for information carrier in which a pressure-sensitive adhesive having a temporary adhering function which can be peeled off is applied to a stacking member and is superimposed on predetermined information.

[0002]

2. Description of the Related Art In recent years, there is a postcard system having confidentiality as an example of a sheet for an information carrier which hides printed information and printed information and communicates as it is. A postcard system with confidentiality is, for example, by folding a postcard on which personal information or various information such as print information and print information is described, and gluing the overlapped portion, or by attaching a concealment label to the information. After hiding the information, mail it,
It is a system in which the recipient peels off the overlap or label again to read the hidden information. In such an information carrier sheet for hiding information, water resistance is desired, and at the same time, improvement in yield at the time of sheet production is desired.

Conventionally, in an information carrier sheet for hiding information, a pressure-sensitive adhesive composition as described, for example, in JP-A-4-59395 is applied to the information hiding portion on a paper base. A pseudo adhesive layer is formed, and a concealing member is overlaid so that it can be easily separated in an adhesive state under normal conditions. Such information carrier sheet,
It is also known that the base is made of a water-resistant resin film, because when it is applied to rain or the like, paper peeling occurs when the hiding member is peeled off. The one based on such a resin film is disclosed in, for example, JP-A-7-3090.
No. 86 publication.

[0004]

By the way, the above-mentioned information carrier sheet is for applying a pressure with a dry sealer or the like when temporarily adhering the concealing member to be superposed on the concealed portion, and uses a resin film as a base. As a result, there is a problem in that the surface is deformed, that is, stretched when pressed, resulting in a positional shift and a reduction in yield.

Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide an information carrier sheet for preventing the elongation at the time of pressurization and improving the yield while ensuring the water resistance. .

[0006]

In order to solve the above problems, in the invention of claim 1, predetermined information can be carried, and a base sheet of a water resistant member having a void region therein, and predetermined information. A stacking member that can be carried on the base sheet and is interposed between the base sheet and the stacking member, and can carry predetermined information and apply a predetermined pressure. By doing so, the base sheet and the pseudo-adhesive layer having a temporary adhering function for separating the stacking member from each other can be provided.

According to the second to fourth aspects of the invention, "the base sheet is made porous by the existing void regions", and "the base sheet has the void regions internally in a foamed form". The constitution is that "the base sheet and the stacking member are integral or separate".

As described above, the predetermined portion of the base sheet is separable, and the base sheet in the information carrier sheet to be superposed by the stacking member through the pseudo adhesive layer having the temporary adhesive function can carry predetermined information. Then, a water resistant member having a void region is used. That is, when stacking a stacking member on the base sheet and applying pressure, the deformation of the base sheet in the cross-sectional direction results in a high density of void spaces in the base sheet, which prevents deformation of the sheet in the surface direction. This means that it is possible to prevent positional displacement during pressurization while ensuring water resistance, and it is possible to improve yield.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described below with reference to the drawings. In order to make the features of the present invention easier to understand, the drawings according to the present embodiment are illustrated with particular dimensions neglected. FIG. 1 shows a configuration diagram of the information carrier sheet of the first embodiment of the present invention, and FIG. 2 shows a sectional explanatory view of a base sheet of the information carrier sheet according to the present invention. Figure 1
(A) is a schematic perspective view of the information carrier sheet according to the present invention,
FIG. 1B is a developed partial sectional view of FIG. Figure 1
In (A) and (B), the information carrier sheet 11A is
It is shown as being applied to a double-folded postcard, and in the unfolded state, the base sheet 12 is constructed by integrally forming the first sheet 13 and the second sheet 14 at the folding line 15.

The first sheet 13 is printed and printed with the postal code, address and name of the postcard on one side (the front side) and the information (concealment) to be transmitted on the other side (the back side). (Including information) is printed and printed. Further, the second sheet 14 is printed and printed with normal information (not including concealment information) to be transmitted on one surface (the same surface as the one surface of the first sheet 13), and is transmitted to the other surface. Information (including concealment information) that should be printed is printed. And, for example,
The pressure-sensitive adhesive forming the pseudo adhesive layer 17 is formed on the back surfaces of the first and second sheets 13 and 14 before printing the above information and before printing. Then, the surface of the first sheet 13 is folded along the folding line 15 so that the surface of the first sheet 13 is exposed, and a predetermined pressure is applied to temporarily bond the sheet.

In this case, 1 of the first and second sheets
Either or both of the information printed on the back surfaces of the printed sheets 3 and 14 or both of the printed information may be hidden, and either or both of the first and second sheets 13 and 14 may be hidden. It serves as a stacking member, and the base sheet and the stacking member are integrated. Further, the pseudo adhesive layer 17 to be formed may be formed on either one of the back surfaces of the first and second sheets 13 and 14 (whichever is acceptable).

The cross section of the base sheet 12 (first and second sheets 13 and 14) is shown in FIG. 2 (A). In FIG. 2 (A), the base sheet 12 has a predetermined amount of void regions 18A penetrating irregularly (may be regular) formed therein based on, for example, a resin film which is a water resistant member. , Is made porous as a whole and is formed with a thickness of 100 μm, for example.

As the base sheet 12 made of such a porous film, for example, a fibrous inorganic filler is added to a base material such as polyethylene or polypropylene, for example, discharge film formation, axial stretching or biaxial stretching. It is formed by axial stretching, and when the fibrous inorganic filler is entangled with each other, the void region 18A penetrating between the fillers is formed. For example, as the ratio of the void region 18A to the entire sheet, the void ratio 20
-60% is preferred. The above porosity does not indicate a critical condition, and should be appropriately selected within a range that does not cause misalignment and printability according to the ink agent in printing on the base sheet 12, the pressure at the time of adhering the overlapping members, and the like. Is.

As the base material for forming the base sheet 12, in addition to the above, polyolefin-based polymers, fluororesin-based, polysulfone-based, polystyrene-based, polyvinyl acetal-based, polyacrylic-based, polyamide-imide, polyamine-based, Polyester, polyurethane, polyketone, silicone, polylactic acid, cellulose,
It is also possible to use a resin such as chitosan.

FIG. 2B is a conceptual diagram showing a state in which the first and second sheets 13 and 14 are superposed and pressed on the base sheet 12 as described above. In FIG. 2B, the pseudo adhesive layers 17 of the first and second sheets 13 and 14 are overlapped with each other, and the pressure is 50 to 200 kg / by a dry sealer (pressure rollers 19A and 19B), for example.
When the pressure is applied by m ² , the void region 18A at the portion where the pressure rollers 19A and 19B are in contact is in a sealed state, and the inside of the sealed void region 18A is high due to the deformation in the cross-sectional direction due to the pressure. It does not cause deformation in the plane direction, only density. Then, the portion where the pressure rollers 19A and 19B have passed is restored in the cross-sectional direction.

In FIG. 2C, the base sheet 12 is not made porous as described above, but is made in a foamed form in which the void regions 18B are hermetically included. That is,
A water-resistant member such as a resin film is used as a base, and a predetermined amount of irregular (may be regular) hermetically-sealed void regions 18B are formed therein.

As such a foamed base sheet 12, for example, inorganic fine particles, polybutylene terephthalate fine particles, or polycarbonate fine particles are added to a base such as polypropylene or polyethylene. It is formed by stretching or biaxial stretching, and the fine particles form the void regions 18B. For example, as the ratio of the void region 18B to the entire sheet, the void ratio is 20 to 60 in the same manner as above.
Percentages are preferred. The void region 18B of this foam form
Even in the same manner as described above, the deformation in the surface direction at the time of pressurizing the adhesive does not occur.

As the base material for forming the foamed base sheet 12, in addition to the above, polyolefin-based polymers, fluororesin-based, polysulfone-based, polystyrene-based, polyvinyl acetal-based, polyacrylic-based, polyamide-imide, As described above, polyamine-based, polyester-based, polyurethane, polyketone, silicone-based, polylactic acid-based, cellulose-based, and chitosan-based resins can be used.

Returning to FIG. 1, the pseudo adhesive layer 17 is capable of carrying predetermined information and is not adhered in a normal state, but is adhered by bringing the superposed surfaces into contact with each other and applying a predetermined pressure. It has a temporary adhesion function.
As an example, raw natural rubber latex, vulcanized natural rubber latex, natural rubber latex obtained by graft-copolymerizing styrene and methyl methacrylate on natural rubber, or an adhesive base of a mixture thereof, for example, zinc oxide. ,
Fine particulate fillers such as titanium oxide, calcium carbonate, kaolin, activated clay, spherical alumina, wheat starch, silica, glass powder, and shirasu balloon are used alone or in combination of two or more (especially in combination with silica and other fillers, Further, it is preferable to combine two or more kinds having different particle diameters), and a pressure-sensitive adhesive composition containing a fine particulate filler having an average particle diameter of 10 nm to 30 μm, preferably 1 μm to 20 μm. It is formed by. By using this pressure-sensitive adhesive base, it is easy to form the surface of the pseudo adhesive layer in an uneven shape, which is advantageous in improving blocking resistance, peeling performance, and printing suitability.

The pseudo adhesive layer 17 has, in addition to the pressure-sensitive adhesive base, a temporary adhesive function, a pressure-sensitive adhesive base provided between two resin films, and ultraviolet curing. Type pressure-sensitive adhesive or a composition containing a fine particulate filler therein, a pressure-sensitive adhesive obtained by adding at least one of a predetermined amount of fine particulate filler and a predetermined amount of an aqueous polymer solution to an adhesive of a synthetic resin emulsion. It may be formed with an adhesive. As the UV-curable pressure-sensitive adhesive, for example, in particular, the UV-curable pressure-sensitive adhesive is a photosensitive composition containing a prepolymer having a terminal unsaturated group, a photopolymerizable monomer, and a photopolymerization initiator. The following can be preferably used because they are excellent in the curing rate by a predetermined ultraviolet ray irradiation, the strength and appearance of the cured layer, and are also excellent in printability on the cured layer.

As a method for forming the pseudo adhesive layer 17, there are, for example, a coating method using a gravure coater and a coating method using an air knife coater. The coating method using a gravure coater is not particularly limited. It is also economical.

The information carrier sheet 11A provided with the pseudo-adhesive layer 17 formed on the above-mentioned base sheet 12 has a fold line 15 so that the surface of the first sheet 13 of the base sheet 12 is exposed. The sheet 14 of No. 2 is folded and the pressure is 50 to 200 k by a dry sealer, for example.
The pressure is applied at g / m ² for temporary adhesion.

In this way, one of the base sheets 12 (first
When a stacking member (which is the second sheet 14) is stacked on the sheet 13 (which is the sheet 13) and is pressed, the internal void regions 18A (18B) become high density due to the deformation of the base sheet 12 in the cross-sectional direction. , It acts so as not to cause the deformation in the surface direction of the sheet, and the resin film having water resistance can prevent misalignment during pressurization, and the yield can be improved while ensuring water resistance. Is something that can be done.

Next, FIG. 3 shows a configuration diagram of the information carrier sheet of the second embodiment of the present invention. FIG. 3 (A) is a schematic perspective view of the information carrier sheet according to the present invention, and FIG. 3 (B) is FIG.
It is a development partial sectional view of (A). In FIGS. 3 (A) and 3 (B), the information carrier sheet 11B is shown as being applied to a tri-fold postcard, and in the unfolded state, the void area 18A (18B) is included in the water resistance. In the base sheet 12 of the resin film, the first sheet 13, the second sheet 14 and the third sheet 21 are folded lines 15A,
15B has an integrated structure.

The first sheet 13 is the same as above.
The postal code, address, and name of the postcard are printed and printed on one side (the front side), and the other side (the back side)
The information to be transmitted (including the concealment information) is printed and printed. Further, the second sheet 14 has information (including concealment information) to be appropriately transmitted printed on both sides thereof.
Furthermore, one surface of the third sheet 21 (the first sheet 13
Information to be transmitted (including concealment information) is printed and printed on the same surface as one surface, and normal information (not including concealment information) to be transmitted is printed and printed on the other surface. And
For example, on the back surfaces of the first and second sheets 13 and 14,
Printing of the above information, before printing, a pseudo adhesive layer 17 similar to the above
A is formed of a pressure sensitive adhesive or the like, and the second and third
Before the above printing and printing, the pseudo adhesive layer 17B is formed of a pressure sensitive adhesive on the surfaces of the sheets 14 and 22. So the first
Fold lines 15A, 1 so that the surface of the sheet 13 is exposed.
5B, Z-folding is overlapped, and a predetermined pressure is applied to temporarily bond them.

In this case, 1 of the first and second sheets
Either or both of the information printed or printed on the back surfaces of the sheets 3 and 14 may be hidden, and any of the information printed or printed on the surfaces 14 and 21 of the second and third sheets. Either or both of them may be concealed, and at least one of the first to third sheets 13, 14, and 21 (whichever is the case) serves as a stacking member. In addition, the pseudo adhesive layers 17A and 17B to be formed
In addition to the structure shown in FIG. 3 (B), it may be formed on either one of the opposing surfaces (may be any) by Z-folding.

As described above, even when the information carrier sheet 11B according to the present invention is applied to a tri-fold postcard, the first to third sheets 13, 14, 22 of the base sheet 12 are similarly processed as described above. When overlapping and pressed, the void region 18A existing due to the deformation of the base sheet 12 in the sectional direction.
Since (18B) has a high density, it acts so as not to cause deformation in the surface direction of the sheet, and the resin film having water resistance can prevent positional displacement during pressurization, resulting in high water resistance. The yield can be improved while ensuring the yield.

Next, FIG. 4 shows a block diagram of the information carrier sheet of the third embodiment of the present invention. 4 (A) is a schematic perspective view of the information carrier sheet according to the present invention, and FIG. 4 (B) is FIG.
It is a development partial sectional view of (A). In FIGS. 4 (A) and 4 (B), the information carrier sheet 11C is shown as being applied to a stack of postcards, and in the expanded state thereof, as described above, the void area 18A (18B) is included in the water resistant sheet. First sheet 13 as base sheet 12 of resin film
Then, as described above, the second sheet 14 as a laminated member of the water-resistant resin film having the void regions 18A (18B) therein is formed as a separate structure. The second sheet 1
4 may be used as the base sheet 12, and the first sheet may be used as the stacking member.

In this case, the first and second sheets 13,
14, the printing and printing of information and the like are the same as those in FIG. 1 except that the first and second sheets 13 and 14 are separate bodies. Therefore, the first sheet 13 and the second sheet 14
The same pseudo adhesive layers 17A and 17B as described above are formed on the surface of each of them by a pressure sensitive adhesive or the like before printing the above information and before printing. Then, the first sheet 13 is stacked so that the surface of the first sheet 13 is exposed, and a predetermined pressure is applied to temporarily bond the sheets. As described above, the information carrier sheet 11C using the above-mentioned base sheet 12 and the similar overlapping member.
Even when the above is configured, the same effect as described above can be obtained.

Next, FIG. 5 shows a block diagram of an information carrier sheet of a fourth embodiment of the present invention. FIG. 5 (A) is a schematic perspective view of the information carrier sheet according to the present invention, and FIG. 5 (B) is a developed partial sectional view of FIG. 5 (A). 5 (A), (B)
In FIG. 1, the information carrier sheet 11D is shown as being applied to a partially folded postcard, and the base sheet 12 of the water-resistant resin film having the void regions 18A (18B) therein as described above in the expanded state is the first. The first sheet 13 and the second sheet 14 are integrated with each other at a folding line 15C.

The first sheet 13 is printed and printed with a postal code, a mailing address, and a name on a postcard on one surface (which is referred to as a front surface), and concealment information to be transmitted below the first sheet 13 is printed and printed. On the other side (the back side),
Normal information (not including hidden information) to be transmitted is printed and printed. Further, the second sheet 14 has information (including concealment information) to be transmitted appropriately printed and printed on one surface (the same surface as the one surface of the first sheet 13), and transmits on the other surface appropriately. Normal information (not including hidden information) that should be printed is printed. Then, for example, a portion of the first sheet 13 (concealed information portion) and the surface of the second sheet 14 (second sheet)
The above-mentioned pseudo adhesive layer 17 is formed with a pressure sensitive adhesive or the like before printing the above information and before printing the above information. Therefore, the second sheet 14 is folded line 15
It is folded by C and temporarily adhered by applying a predetermined pressure.

In this case as well, the pseudo adhesive layer 17 may of course be formed on the hidden information portion of the first sheet 13. Even when such an information carrier sheet 11D using the above-mentioned base sheet 12 is configured, the same effects as described above can be obtained.

Next, FIG. 6 shows a block diagram of the information carrier sheet of the fifth embodiment of the present invention. FIG. 6 (A) is a schematic perspective view of the information carrier sheet according to the present invention, and FIG. 6 (B) is FIG.
6A is an exploded perspective view, and FIG. 6C is a developed partial sectional view of FIG. 6B. In FIGS. 6 (A) to 6 (C), the information carrier sheet 11E is shown as being applied to a label-attached postcard, and in the unfolded state, as described above, the void regions 18A (18B) are water resistant. The base sheet 12 of the resin film of 1 is separate from the first sheet 13 and the label 22 as a laminated member (second sheet) of the water resistant resin film in which the void regions 18A (18B) are contained as described above. It has a structure.

The first sheet 13 has a postal code, a mailing address, and a name on a postcard printed and printed on one surface (a front surface), and concealment information to be transmitted, for example, is printed and printed below the postal code. On the other side (the back side),
A pseudo adhesive layer 17B similar to the above is formed with a pressure sensitive adhesive or the like, and normal information (not including concealment information) to be transmitted is printed and printed. In addition, the label 22 is printed and printed on one surface (the same surface as the one surface of the first sheet 13) with the normal information (not including the concealment information) to be appropriately transmitted. Then, for example, a pseudo adhesive layer 17A similar to the above is formed on the back surface of the label 22 with a pressure sensitive adhesive or the like. In this case as well, it goes without saying that the pseudo adhesive layer (17A, 17B) may be formed on either one, and when such an information carrier sheet 11E using the base sheet 12 is constructed. However, the same effect as described above can be obtained.

[0035]

As described above, according to the present invention, the base sheet of the information carrier sheet in which the base sheet is superposed by the stacking member via the pseudo adhesive layer having a temporary adhesive function which makes the predetermined portion of the base sheet separable. By using a water resistant member that can carry predetermined information freely and has a void region therein, it is possible to improve the yield while preventing water displacement while ensuring water resistance. It is possible.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an information carrier sheet according to a first embodiment of the present invention.

FIG. 2 is an explanatory cross-sectional view of a base sheet of the information carrier sheet according to the present invention.

FIG. 3 is a configuration diagram of an information carrier sheet according to a second embodiment of the present invention.

FIG. 4 is a configuration diagram of an information carrier sheet according to a third embodiment of the present invention.

FIG. 5 is a configuration diagram of an information carrier sheet according to a fourth embodiment of the present invention.

FIG. 6 is a configuration diagram of an information carrier sheet according to a fifth embodiment of the present invention.

[Explanation of symbols]

11A-11E postcard system 12 Base sheet 13 First Sheet 14 Second sheet 15, 15A-15C broken line 17, 17A, 17B Pseudo adhesive layer 18A, 18B void area 19A, 19B pressure roller 21 Third Sheet 22 labels

Claims (4)

[Claims] 1. A base sheet of a water resistant member that can carry predetermined information and has a void region therein; a stacking member that can carry predetermined information and that is superposed on the base sheet; It is interposed between the base sheet and the stacking member, and can carry predetermined information freely, and has a temporary adhesion function of separating the base sheet and the stacking member by applying a predetermined pressure. A pseudo-adhesive layer having the sheet, and a sheet for information carrier, comprising: 2. The information carrier sheet according to claim 1, wherein the base sheet is made porous by an internal void region. 3. The information carrier sheet according to claim 1, wherein the base sheet has the void regions therein in a foamed form. 4. The information carrier sheet according to any one of claims 1 to 3, wherein the base sheet and the stacking member are integral or separate.