JPH0815827B2 - Simple postcard - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention is a half-size paper material whose length is approximately half of the long side of the postcard-sized paper material in the longitudinal direction. Both the surfaces of the postcard-sized paper material and the half-size paper material which are continuous as a postcard and are folded back through the folding lines and abutted against each other to be used as a dense postcard. Consisting of a laminated sheet for temporarily adhering
Before folding the half-size paper through the fold line, the postcard-sized dense paper and the subsequent address-writing surface, which is the rest of the postcard-sized paper, are located on the same side of the postcard paper. The present invention relates to a simple postcard suitable for simultaneous printing on a destination entry surface and a postcard-sized postcard by a printer such as a computer's laser printer and capable of peeling the postcard without destroying the print. .

[Conventional technology]

Conventionally, a sealed letter is used as a communication means when privacy is a problem. However, since the cost of a postal letter is higher than that of a postcard only with the cost of a stamp, a means for reducing the cost has been widely demanded. On the other hand, low cost postcards have the disadvantage that the information is exposed to outsiders. In particular, from the viewpoint of personal privacy protection, it is strongly desired that the notice of payment of pension payments, etc. be made visible only to the recipient. Similar applications include various financial institutions, insurance companies, securities companies, credit companies, tax-related,
There are bills for non-payments such as electricity, gas, water, and telephone, and non-payment notices. From the viewpoint of personal privacy protection, it is highly necessary to make them visible only to the payer.

Under these circumstances, in recent years, most of the time, the printing of the description of the documents created and mailed accompanying the work in each field such as financial institution, tax affairs, electricity, gas, water, telegraph and telephone is efficient. The printing process by computer printers is the mainstream, and such documents are usually sent as envelopes so that they are not seen by anyone other than the recipient.
Mailing costs are high, and work such as enclosing and sealing is complicated. If a postcard is used for such business communication, the cost can be significantly reduced and the work can be simplified. Therefore, in recent years, from the viewpoint of privacy protection, a method of sticking a sticker paper, which is coated with a re-peeling weak adhesive on the back surface, to the information area of a postcard has been considered and implemented. , When using a sticker paper coated with such a weak adhesive on the back side, peel off the release paper protecting the weak adhesive from the weak adhesive layer before attaching the sticker to the information section of the postcard. There is a problem that a user who uses a large number of postcards needs to discard a large amount of release paper because it needs to be removed.
In addition, when the recipient peels off the sticker paper, it may damage the information part of the postcard, and the weak adhesive can be adhered and peeled as many times as desired, and no trace of peeling the sticker paper remains, preventing privacy protection infringement. It also had the drawback of being less effective.

A postcard (No. Shokai 16-16368) has also been proposed, in which an adhesive is applied to the peripheral edge of the back surface with an appropriate width, and a sticker paper provided with a cutting line along the adhesive surface is affixed. Since information cannot be printed on the adhesive portion, the amount of information to be printed is extremely limited. Furthermore,
A cover sheet between a low-density polyethylene film and a high-density polyethylene film, which is a cover sheet obtained by laminating a low-density polyethylene film on the back surface of a paper on which the back surface of one postcard is aluminum-deposited in Japanese Utility Model No. 63-11863. The low-density polyethylene film of the same type as the low-density polyethylene film is heat-extruded at a temperature lower than its ordinary melting point to form a solidified bonding layer to form a seal body consisting of a total of 5 layers, and aluminum-vapor-deposited paper of the seal body is formed. A coated postcard has also been proposed which uses a total of seven layers of laminated sheets with a pressure sensitive adhesive on the opposite side of the high density polyethylene film and a release paper on the outside. However, the laminated sheet used for this postcard has a complicated structure of a total of 7 layers, and as described above, there is a drawback that a large amount of unnecessary release paper is produced, and the written description that can be written is different from the address entry surface. Therefore, there is also a drawback that the work efficiency becomes extremely low because separate work is required to match the front side and the back side to the same destination.

[Means for solving the problem]

As a result of intensive studies to improve the drawbacks of the conventional postcards as described above, the present inventors have determined that the postcard paper material has a length in the longitudinal direction of the postcard-sized paper material that is longer than the long side of the postcard-sized paper material. Almost half of the half-size paper material is continuous through fold lines, so to speak, it has the same width as the conventional postcard paper material and is about 1.5 times the length. If the address entry surface is composed of the surface of the postcard-sized paper material other than the composition of the confidential document that is used as the confidential document on both surfaces of the paper material and the half size paper material Before folding the surface of the half-size paper material to the surface of the postcard-sized paper material, the postcard-sized densely printed surface and about half of the postcard-sized address entry surface are located on the same side, so they are linked to the computer. You can print the address and information at once with a printer etc. As a means for folding the postcard paper material in the shape of a line through a folding line and inserting it between the dense writing surfaces and temporarily adhering the dense writing surfaces to each other, a melting point of 120 ° C. or more on one surface of a transparent plastic sheet is used. The melting point of the transparent plastic sheet is lower than the melting point of the transparent plastic sheet at a temperature of ℃ or more, and the T-type peel strength with the transparent plastic sheet (condition: 20
The transparent plastic sheet, the transparent plastic, and the postcard paper material are provided on both sides of a temporary adhesive laminated sheet formed by melt-extruding the transparent plastic having a peeling rate of 300 mm / min at 65 ° C and 65% RH of 10 to 70 g / 50 mm. T-type peeling strength (conditions: peeling speed 300mm / min at 20 ℃, 65% RH) is 300g / 50mm or more, and a transparent heat-sensitive adhesive layer for heat-sensitive adhesion to the postcard paper material is provided at a temperature of 100 ℃ or less. It was clarified that a laminated sheet, which is inserted between the hard copy sheets of the postcard paper material and temporarily adheres the hard copy sheets to each other by heat-sensitive adhesion, was found out, and the simple postcard according to the present invention was completed.

An embodiment of a simplified postcard according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a postcard paper material 1 for a simple postcard according to the present invention.
FIG. 2 is a front view showing the surface of the embodiment, FIG. 2 is an enlarged cross-sectional explanatory view showing the structure of the laminated sheet used in the present invention, and FIG. 3 shows the structure of the simplified postcard according to the present invention shown in FIG. FIG.

In the drawing, 1 is a half-size paper material 1b whose length is approximately half the long side of the postcard-sized paper material 1a in the longitudinal direction of the postcard-sized paper material 1a as shown in FIG. Both the surfaces of the half-size paper material 1b and the postcard-sized paper material 1a that are continuous with each other and fold back along the folding line X and come into contact with each other form the private writing surfaces A and B used as private mail. The surface of the postcard-sized paper material 1a other than those constituting the densely printed sheets A and B is the postcard paper material constituting the address entry surface C, and when the postcard paper material 1 is used as a postcard, the postal method is used. Since it does not make sense to exceed the standard of postcards specified in, the maximum size after folding the half-size paper material 1b at the folding line X is in the range of 140 mm × 90 mm to 150 mm × 107 mm and its tsubo The amount may be about 70 to 215 g / m ² . And
In order to be able to print the address and the information required for the confidential document on the address entry surface C and the confidential documents A and B all at once by a printer such as a laser printer of a computer, the polygonal line X on both sides, that is, the address entry surface C is used. Opposite side and address entry surface C
It is preferable to provide an ear portion 1c having holes formed at predetermined intervals on the side opposite to the fold line X on the most densely printed sheet B, and to provide a perforation P at a connection portion with the ear portion 1c. .

As shown in FIG. 2, reference numeral 2 denotes a transparent plastic sheet 2a having a melting point of 120 ° C. or higher, and a melting point of 110 ° C. or higher on one side of the transparent plastic sheet 2a. T-peel strength (peel speed 300mm / min at 20 ° C, 65% RH) with the transparent plastic sheet 2a is 10-70g / 5 so that it can be peeled off and not peeled off before reaching the recipient.
T-type peel strength (20 ° C, 65% RH) between the transparent plastic sheet 2a, the transparent plastic 2b and the postcard paper material 1 on both sides of the temporary adhesive laminated sheet Z formed by melt-extruding the transparent plastic 2b of 0 mm. Peeling speed of 300 mm / min) is 3
It is composed of a four-layer structure with a transparent heat-sensitive adhesive layer 2c that heat-bonds to the postcard paper material 1 at a temperature of 00g / 50mm or more and 100 ° C or less, and is inserted between the dense paper surfaces A and B of the postcard paper material 1. Is a laminated sheet for temporarily adhering the densely printed sheets A and B to each other by heat-sensitive adhesion. As the temporary adhesive laminated sheet Z forming a part of the laminated sheet 2, the transparent plastic sheet 2a is made of polyethylene terephthalate, polypropylene or acetate. A transparent plastic 2b made of either ethylene-ethyl acrylate copolymer and / or ethylene-
It may be made of any one of vinyl acetate copolymer, ethylene-ethyl acrylate copolymer and / or ethylene-vinyl acetate copolymer and polyethylene mixed resin,
Among them, a mixed resin of ethylene-ethyl acrylate copolymer and / or ethylene-vinyl acetate copolymer 5 to 35% by weight and polyethylene 95 to 65% by weight can obtain workability and desired T-type peel strength. It is preferable because it is easy to use.
As disclosed in 63-11863, the transparent plastic sheet 2a is a high-density polyethylene sheet or a polyethylene terephthalate sheet, and the transparent plastic sheet 2b.
However, low density polyethylene may be used. Further, the temporary adhesive laminated sheet Z is provided on both sides and is provided with T-type peeling strength (clearing speed 3 at 20 ° C., 65% RH) with the transparent plastic sheet 2a, the transparent plastic 2b and the postcard paper material 1.
00 mm / min) is 300 g / 50 mm or more and the transparent heat-sensitive adhesive layer 2c that heat-sensitively adheres to the postcard paper material 1 at a temperature of 100 ° C. or less,
Vinyl chloride-vinyl acetate copolymer system, ethylene-vinyl acetate copolymer system, ethylene-acrylic acid copolymer system, acrylic system, styrene-butadiene-styrene copolymer system, styrene-isoprene-styrene copolymer system, styrene-ethylenebutylene Any of the styrene copolymer systems may be used.

[Action]

In the simple postcard according to the present invention having such a configuration, the postcard paper material 1 is a half-size paper material whose length is further approximately half the long side of the postcard-sized paper material 1a in the longitudinal direction of the postcard-sized paper material 1a. A postcard in which both surfaces of a postcard-sized paper material 1a and a half-size paper material 1b, in which 1b are continuous through a fold line X, are folded back along the fold line X and abut each other, are used as postscript.
Since the surface of the postcard-sized paper material 1a other than A and B and the densely printed sheets A and B constitutes the address entry surface C, the broken line X
In the state in which is not folded, since the address entry surface C and the written letters A and B are lined up on the same surface, the address is written on the address entry surface C and the information written on the lettered documents A and B which have the same area as a normal postcard Can be described all at once, and since they are described on the same surface, there is no fear that information will be described in different destinations. Then, these descriptions can be printed simultaneously on the address entry surface C and the dense document A and B respectively by a printer such as a computer laser printer. When printing by the printer in this way, the address entry surface C and the dense document B It is convenient if the ear portions 1c are provided with holes at predetermined intervals on both sides of and and the perforation P is provided at the connecting portion with the ear portions 1c. Thus, the address is entered on the address entry surface C, and the written
After the information as the private letter has been written in A and B, it is folded back so that the surfaces of the private letter A and B come into contact with each other via the fold line X between the dense letter surfaces A and B of the postcard paper material 1.

When folding back in this way, the melting point on the one surface of the transparent plastic sheet 2a having a melting point of 120 ° C or more between the written letters A and B described above is 110 ° C or more, and the melting point is lower than the melting point of the transparent plastic sheet 2a. And T-type peel strength with transparent plastic sheet 2a (Peeling speed 300mm at 20 ℃, 65% RH)
T-type peeling from the transparent plastic sheet 2a, the transparent plastic sheet 2b and the postcard paper material 1 on both sides of the temporary adhesive laminated sheet Z formed by melt-extruding the transparent plastic sheet 2b having a rate of 10 to 70 g / 50 mm. Laminated sheet provided with a transparent heat-sensitive adhesive layer 2c which has a strength (peeling speed 300 mm / min at 20 ° C. and 65% RH) of 300 g / 50 mm or more and a temperature of 100 ° C. or less and which is heat-sensitively adhered to the postcard paper material 1 Insert 2 and postcard paper material 1
From both backsides of the densely printed sheets A and B, the transparent heat-sensitive adhesive layer 2c of the laminated sheet 2 is heated to a temperature at which it melts, and the surfaces of the densely written sheets A and B of the postcard paper material 1 are temporarily bonded together by the laminated sheet 2. However, if there are ears 1c having holes at predetermined intervals on both sides of the address entry surface C and the dense writing surface B of the postcard paper material 1, the ears 1c are connected to the ears 1c. Part of perforation P
The work will be completed if it is removed along the line.

In such a process, when the address writing surface C and the dense print surfaces A and B of the postcard paper material 1 are simultaneously printed by the laser printer of the computer, the surfaces of the dense print surfaces A and B of the postcard paper material 1 are printed. It is possible to prevent the resin contained in the printed toner from being melted to make the printing undecipherable even if they are heated by the laminated sheet 2 for heat-sensitive adhesion at a temperature of 100 ° C. or less.

〔Example〕

Example 1 20 parts by weight of ethylene-ethyl acrylate copolymer and polyethylene were formed on one surface of a transparent plastic sheet 2a made of a polyethylene terephthalate film having a thickness of 16 μm.
80 parts by weight of transparent plastic 2b having a thickness of 20 μm is melt extruded and laminated to produce a temporary adhesive laminate sheet Z, and ethylene-vinyl acetate copolymer is heat-sensitive adhered to both surfaces of the temporary adhesive laminate sheet Z at 70 ° C. 25 transparent heat-sensitive adhesive layers 2c each consisting of a system hot-melt adhesive
A laminated sheet 2 was prepared by applying g / m ² . Then 150 x 107
mm A half-size paper material 1b whose length is approximately half the long side of the postcard-sized paper material 1a in the longitudinal direction is continuous through the fold line X. Both the surfaces of the postcard-sized paper material 1a and the half-size paper material 1b that are folded back and abut against each other are used as a confidential document A,
The surface of the postcard-sized paper material 1a other than that which constitutes B and forms the densely printed sheets A and B constitutes the address entry surface C. Basis weight 150 g / m
Prepare a postcard paper material 1 consisting of ² continuous slip papers, and print the recipient's address and secret document simultaneously on the address entry surface C and the secret document papers A and B of this postcard paper material 1 using a computer laser printer. After that, the postcard paper material 1 is folded back along a fold line X so that the surfaces of the tight-printed surfaces A and B come into contact with each other, and the laminated sheet 2 is inserted between the tight-printed surfaces A and B, and the plastics 2b having a transparent surface temperature. After passing through a heat roll of 100 ° C to 120 ° C lower than the melting point of (1) to heat-sensitively bond with a transparent heat-sensitive adhesive layer 2c and sufficiently cool, the T-type peeling strength between the dense writing surfaces A and B of the postcard paper material 1 ( A peeling speed of 300 mm / min) was measured at 20 ° C and 65% RH, and it was easy to peel by hand at 25 g / 50 mm, and the printed surface was readable without any damage, and its total weight was
It was confirmed that 4.4g can be used as a simple postcard for the outbound journey.

Comparative Example The same as Example 1 except that a thermoplastic resin consisting of 40 parts by weight of ethylene-ethyl acrylate copolymer and 60 parts by weight of polyethylene was used as the transparent plastic 2b constituting the temporary adhesive laminate sheet Z. After obtaining a simple postcard and performing the same processing as in the embodiment, the postcard paper material 1
The T-type peeling strength (peeling speed 300 mm / min at 20 ° C. and 65% RH) between the densely printed sheets A and B was 80 g / 50 mm, and peeling curl occurred, making it difficult to read the print.

〔The invention's effect〕

In the simple postcard according to the present invention described in detail above, since the address entry surface C of the postcard sheet material 1 and the postcards A and B are located on the same surface, it is possible to print the address and the information at the same time, and different addresses There is no danger of printing information addressed to others on the same address, especially the address and the information can be printed at the same time by computer processing.
Therefore, it is the same as using the entire back surface of a conventional postcard, and moreover, a transparent heat-sensitive adhesive is used on both sides of a temporary adhesive laminated sheet Z for temporary adhesion between the dense writing surfaces A and B of the postcard paper material 1. layer
Since the laminated sheet 2 having 2c is inserted and heat-sensitively adhered, the printed letters A and B have the transparent heat-sensitive adhesive layer 2c protected and protected by heat-sensitive adhesive layer 2c.
Since it cannot be corrected, it can be prevented from being abused and can be stored for a long time.
T between the transparent plastic sheet 2a and the transparent plastic sheet 2b of the laminated sheet Z for temporary adhesion of the laminated sheet 2 between
Mold peel strength (peel speed 300mm / min at 20 ℃, 65% RH) is 10 ~ 7
Since it is 0 g / 50 mm, the recipient of this postcard can read the secret document printed by manually peeling off the transparent plastic sheet 2a and the transparent plastic sheet 2b of the temporary adhesive laminated sheet Z without destroying it. Can be done. The transparent plastic sheet 2a and the transparent plastic sheet 2b, which form the temporary adhesion laminated sheet Z of the laminated sheet 2, cannot be adhered again after being peeled off once, so the effect of preventing privacy infringement is very excellent. Further, there is no possibility that a large amount of release paper remains when performing a process for concealing a densely printed face, such as a postcard currently used, and a process pollution problem occurs. The heat-sensitive adhesive layers 2c on both sides of the laminated sheet 2 can be heat-sensitively adhered at a temperature lower than the melting point of the transparent plastic sheet 2a and the transparent plastic sheet 2b constituting the temporary adhesive laminated sheet Z by 10 ° C. or more. The T-type peel strength of the adhesive laminated sheet Z does not change due to heat-sensitive adhesion to the postcard paper material 1 of the laminated sheet 2.

As described above, the simple postcard according to the present invention having various advantages makes a very high contribution to the business field of shipping a large amount of secret documents that cause privacy invasion problems.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing the surface of one embodiment of a simple postcard postcard material according to the present invention, and FIG. 2 is an enlarged cross-sectional view showing the structure of a laminated sheet used in the present invention. Explanatory drawing, FIG. 3 is a cross-sectional explanatory view showing the structure of the simplified postcard according to the present invention shown in FIG. In the drawing 1 …… Postcard paper 1a …… Postcard-sized paper 1b …… Half-size paper 1c …… Ear X …… Fold lines A, B… Compact paper C …… Address entry surface P …… Perforation 2 ... Laminated sheet Z ... Temporary adhesive laminated sheet 2a ... Transparent plastic sheet 2b ... Transparent plastic 2c ... Transparent heat-sensitive adhesive layer

Continuation of the front page (56) Reference JP-A-61-134251 (JP, A) JP-A-64-16691 (JP, A) Actually opened 63-51772 (JP, U) Actually opened 64-36183 (JP , U) Actual opening 1-74179 (JP, U) Actual opening Sho 53-19449 (JP, U) Actual opening Sho 55-15020 (JP, U)

Claims (4)

[Claims] 1. A half-size paper material (1b) whose length in the longitudinal direction of a postcard-sized paper material (1a) is approximately half of the long side of the postcard-sized paper material (1a) is a fold line (X). Both the surfaces of the postcard-sized paper material (1a) and the half-size paper material (1b) that are continuous with each other and are folded back through the folding line (X) and abut against each other are used as closed letters. A postcard paper material (1) in which the surface of the postcard-sized paper material (1a) other than that forming the private print surface (A, B) constitutes the address entry surface (C) And a transparent plastic sheet (2a) having a melting point of 120 ° C or higher on one surface of the transparent plastic sheet (2a) having a melting point of 110 ° C or higher and lower than that of the transparent plastic sheet (2a) The T-type peel strength (peeling speed 300mm / min at 20 ° C, 65% RH) of 10-70g / 50mm transparent plastic (2b) is melt extruded. The transparent plastisol poke sheet on both sides of the temporary adhesive laminated sheet (Z) (2a),
T with transparent plastic (2b) and postcard paper material (1)
Mold peel strength (peel speed 300mm / min at 20 ℃, 65% RH) is 300g /
A transparent heat-sensitive adhesive layer (2c) that is heat-sensitively adhered to the postcard paper material (1) at a temperature of 50 mm or more and 100 ° C or less is provided, and between the close-printed surfaces (A, B) of the postcard paper material (1). A simple postcard, comprising: a laminated sheet (2) which is inserted into a sheet and is temporarily adhered to each other by heat-sensitive adhesion between the postcards (A, B). 2. The transparent plastic sheet (2a) of the temporary adhesive laminate sheet (Z) is made of any one of polyethylene terephthalate, polypropylene and acetate, and the transparent plastic sheet (2b) is an ethylene-ethyl acrylate copolymer and / or Or ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer and / or ethylene-
The simplified postcard according to claim 1, which is made of any one of a mixed resin of a vinyl acetate copolymer and polyethylene. 3. The transparent heat-sensitive adhesive layers (2c) on both sides of the laminated sheet (2) are vinyl chloride-vinyl acetate copolymer system, ethylene-vinyl acetate copolymer system, ethylene-acrylic acid copolymer system, acrylic system. A simple postcard according to claim 1 or 2, comprising any of a styrene-butadiene-styrene copolymer system, a styrene-isoprene-styrene copolymer system, and a styrene-ethylenebutylene-styrene copolymer system. 4. A postscript sheet (A) of the address entry surface (C) so that the postcard paper material (1) can be simultaneously printed on the address entry surface (C) and the dense document (A, B) by a computer printer. On the opposite side and on both sides on the opposite side of the address entry surface (C) of the dense document (B) away from the address entry surface (C), there are ears (1c) having holes formed at predetermined intervals. The simple postcard according to any one of claims 1 to 3, wherein a perforation (P) is provided at a connection portion with the ear portion (1c).