JP2540449Y2 - Stacked postcard - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a laminated postcard which has an increased communication aspect and allows confidentiality of contents.

[Prior Art] In a conventional postcard, since the communication surface is limited to the back side and a part of the front side, there is a limit to the amount of information that a sender can convey to a destination person. There was something I could not tell.

In addition, since the contents described are exposed, the contents cannot be kept secret, and the contents may be restricted.

Such documents are usually sent out as envelopes, but the mailing cost is high, and processing operations such as encasing and gluing are complicated.

Therefore, postcards of the type in which a single reciprocating postcard size is folded inside with the written surface of the postcard size inside, and expanded as necessary so that the written surface can be read, have conventionally been proposed as spread postcards. .

For example, a laminated postcard in which a special removable pressure-sensitive adhesive is attached to the two postcard-sized writing surfaces and then folded and adhered so that the recipient of the postcard can peel off the releasable adhesive surface. Or, a method is used in which a polyvinyl chloride resin layer is attached to the printing surface of a reciprocating postcard-size sheet with an adhesive, then folded in two, and then heated and pressurized to make a pseudo-adhesion between the polyvinyl chloride resin layers (Japanese Utility Model No. 1-174170). ) Etc. were also proposed.

[Problem to be Solved by the Invention] It is technically difficult for a system using various pressure-sensitive adhesives to harmonize conflicting factors between reliable adhesion during mailing and easy peeling by a recipient. In addition, there is also a problem that the printing surface is sticky.

The method of attaching the polyvinyl chloride resin layer to the printing surface, folding it in half, and applying heat and pressure to perform pseudo-adhesion is excellent in that the pseudo-adhesion method is used. Not only is the manufacturing process complicated, but also the manufacturing cost is high, and it is difficult to control the heating temperature during pressurization, so it can be manufactured simply and inexpensively, and the printed surface after peeling becomes strong glossy. There was a need for something that would improve the effect.

[Purpose of the invention] A laminated postcard that has a larger message writing area than conventional postcards, and whose printed surface is covered with a non-sticky glossy film,
It is an object of the present invention to provide a simple and low-cost manufacturing method.

[Means for Solving the Problems] That is, the present invention relates to a postcard having at least one fold portion and a print layer surface inside, when the postcard is folded in two or more. A laminated postcard, wherein a cured film layer made of an ultraviolet curable varnish is provided on both of the printing layer surfaces that are in contact with each other, and the cured film layers are pseudo-adhered to each other.

It is also possible to provide a cutout at one corner of the edge of the postcard that faces the folded portion and that appears outside the stacked postcard.

Furthermore, the postcard is opposite to the folded portion, and the edges appearing on the outer side of the laminated postcard are in contact with the other postcard, which is adjacent to the other postcard, or on one side, and is optimal from the edge. It is also preferable to provide a cured film layer made of an ultraviolet-curing varnish, leaving a blank portion having an appropriate width.

"Pseudo-adhesion" means to smooth the surface of certain resin films,
When a high pressure is applied to these resin films together, the phenomenon of maintaining the bonded state even without an adhesive or the like, depending on physical and chemical conditions such as fine irregularities on the resin film surface, affinity, wettability, etc. As a result of intensive studies, the present inventors have made a laminated postcard using an ultraviolet-effect varnish, preferably a urethane acrylate-based ultraviolet-curable varnish having a specific structure. However, the recipient of the postcard can easily peel it off by pulling it with only a small force, so that he can obtain a laminated postcard with a printing surface several times larger than before, and led to the present invention. It was.

Embodiment of the Invention Next, an embodiment of the invention will be described in detail with reference to the drawings.

FIG. 1 is a front view of the postcard 1 of the present invention, and FIG.

The postcard mount 1 is about twice the size of a postcard, and has a folded part 2 at the center of the postcard.

A postcard cover 3 and a postcard backsheet 4 are provided on the left and right sides of the folded portion.

On the front surface of the postcard cover 3, a postal code column 5 and a space for describing a destination are provided. On the back side 6, 7 of the postcard cover 3 and the back side 4 of the postcard backing sheet 4, there are usually printed layers 8, 9 on which advertising texts, photographs and the like are printed.

On the printing layer, cured films 10, 11 of an ultraviolet curable varnish (preferably urethane acrylate) are provided.

Examples of the UV-curable varnish include Go-Serac uv
An ultraviolet curable varnish containing 2000B (trade name of Nippon Synthetic Chemical Co., Ltd.) as a main component, diluted with isobornyl acrylate, and mixed with a benzophenone-based photoinitiator can be suitably used.

The UV-curable varnish is, for example, an ultraviolet-curing device "Eiglandage" (trade name of Eye Graphic Co.)
After coating with a film thickness of about 5 microns, a cured film can be formed in a short time by irradiating ultraviolet rays at a rate of 10 meters per minute with one 80 watt lamp.

Since the cured film has high gloss, the appearance of the printed matter is improved, and no stickiness is felt even when touched with a finger.

A cutout 12 is provided at the lower corner of the left side edge C of the postcard cover 3 facing the folded portion 2. The missing portion 12 can be provided at the lower corner of the right side of the postcard backing paper 4 or the like.

Right side edge C of the back side 7 of the postcard cover opposite to the folded portion 2
A blank portion 13 having an optimum width without a cured film layer formed by an ultraviolet curable varnish is provided along the line.

The width of the blank portion need only be wide enough to be pinched with a finger, and usually may be around 1 cm. Also, this blank part is
It may be provided on the left side edge of the postcard backing sheet 6 facing the folded portion 2 or on both sides.

FIG. 3 is a schematic cross-sectional view taken along the line AA of FIG. 2, and FIG.
FIG. 2 is a perspective view showing a state where the sheet is folded in half with the inside as a side.

By passing the postcard folded in this way, for example, between two metal rolls while applying a pressure of 500 kg / cm ² or more, a pseudo-adhesive force is generated on the contact surface between the cured film layers 10 and 11. Since the postcard back surfaces 6 and 7 are integrated, a laminated postcard can be created. In the present invention, there is no need to heat at the time of pressurization.

Since the present invention is configured as described above, it can be mailed as a normal postcard while having a printing surface of the size of a reciprocating postcard. In addition, the printed surfaces 8 and 9 are hidden from view from outside, and can keep confidentiality during mailing.

In the present invention, if a cutout is provided in the lower corner 12 of the postcard, it is desirable that the lower corner 14 of the postcard facing the cutout is left uncut.

In other words, in the present invention, there is a missing portion in the corner of one of the postcards, and the corner of the postcard, which is opposed to the missing portion, is configured to be left. It is easy to understand.

In addition, a blank portion 13 having an optimum width is provided in a portion where the edge C having the missing portion 12 is in contact with the other postcard.
Exists and is not glued, so the corner of the postcard mount 14
Is picked with a finger, and at the same time, the left side C of the postcard cover 3 is also picked with a finger.
The back surfaces 6 and 7 of the postcard mount 1 can be easily separated.

In the present invention, the reason is unknown because it is a UV-cured film, particularly preferably a cured film using a urethane acrylate-based UV-curable varnish having a special structure. It generates adhesive power.

The pseudo-adhesive strength varies slightly depending on the composition of the varnish, the pressure, and the like, but a 90-degree peel strength of about 100 to 300 g (25 mm width) can be obtained with an Instron tensile tester.

Further, in the above embodiment, the postcard mount 1 is composed of two sheets of the postcard cover 3 and the postcard backsheet 4, but the present invention is not limited to this, and the postcard mount is a postcard cover, a postcard middle sheet,
It may be composed of three or more postcard backing sheets.

When the postcard mount 15 is composed of three sheets as described above,
As shown in FIG. 5, a postcard cover 3, a postcard middle sheet 18, and a postcard backsheet 4 are connected via fold perforations 16 and 17.

The postcard cover 3 is a space for entering an address and the like,
A printing surface 19 is formed on the postcard middle paper, and a printing surface 20 is formed on the postcard backing paper 4.

In the present invention, a cured film layer 21 made of an ultraviolet curable varnish is provided on the printing surface 19, and an ultraviolet cured film layer 22 is provided on the printing surface 20.

FIG. 6 shows the back of the postcard mount 15 and the back 7 of the postcard cover.
Is provided with a printing surface 23 and an ultraviolet curing film layer 24 on the upper surface thereof.

On the back surface 25 of the postcard, there is a printing surface 26, and on its upper surface, an ultraviolet curing film layer 27 is provided.

A cutout 28 is provided at the lower corner of the side edge C of the postcard backing paper 4, and a blank portion 29 having an optimum width and having no ultraviolet curable film layer is provided along the side edge C.

In the lower corner of the edge D of the back surface 7 of the postcard cover, a notch 30 is provided, and along the edge D, a blank portion 31 having an optimum width and no ultraviolet curable film layer is provided.

In the present invention, the missing portion and the blank portion can be provided on the edge that appears outside when the postcards are stacked, but cannot be provided on the edge that is hidden inside when the layers are stacked. .

With the presence of each of these missing portions and blank portions, the postcard recipient can easily peel off the adhesive surface of the postcard by using this as a clue. FIG. 7 is a perspective view when the postcard front cover and the postcard backsheet are overlapped and folded in three around the center postcard, and FIG. 8 is a schematic cross-sectional view along the line BB.

As shown in FIG. 8, the back surface 7 of the postcard cover and the back surface 25 of the postcard middle paper have the UV-cured film layers 24 and 27 in contact with each other, and the front surface 18 of the postcard back surface and the front surface 4 of the postcard backsheet 4 Is a UV cured film layer
Since 21 and 22 are provided so as to be in contact with each other, if this is strongly pressed, a pseudo-adhesive force is generated between the respective UV-cured film layers, and the front cover, inner paper and back paper of the postcard are completely integrated. A laminated postcard can be obtained.

The present invention can be implemented in any folding method other than the present embodiment, as long as a cured film layer made of an ultraviolet curable varnish is formed on the contact surface of the postcard to be bonded.

In addition, the cured film layer of the UV-curable varnish does not necessarily have to be a continuous surface, as long as at least a part thereof is in contact with each other when the postcards are overlapped. Or a non-continuous surface such as various stripes.

[Effects of the Invention] In the present invention, since no adhesives are used, the printed surface does not become sticky, and it is not necessary to cover the adhesive surface with a release paper until the adhesive is adhered. Because there is no change with time or the change in adhesive strength due to temperature conditions, etc. that often occur when using, the trouble that the mail recipients have difficulty peeling off the laminated postcards, or on the contrary, they naturally peel off during mailing Also gone.

Although the pseudo-adhesive force according to the present invention has such an adhesive strength that it can be easily peeled off when pulled at an angle, it usually never peels off even when an external force enough to receive mail is applied.

Such a pseudo-adhesive force having an optimal strength can be obtained between certain kinds of synthetic resin films, but cannot be obtained with a coating film other than the ultraviolet-curing varnish by the overcoating method.

In the present invention, a cured film is formed by an overcoating method using an ultraviolet-curing varnish, so that a printing effect is improved by a strong glossy coating film overcoated on a printing surface, and of course, a curing speed is improved. , The post-processing can be performed quickly.

Also, the manufacturing method can use the existing ultraviolet curing device as it is, without complicated steps such as attaching a film, easily and at low cost, while having a printing surface several times the size of a postcard, Since it is possible to provide a stack of postcards to which postage of normal postcards can be applied, the industrial effect is great.

[Brief description of the drawings]

1 and 2 are front and back plan views of a postcard according to an embodiment of the present invention, and FIG. 3 is a sectional view taken along line AA of FIG.
FIG. 4 is a perspective view of a laminated postcard, which is a schematic cross-sectional view taken along a line. 5 and 6 are plan views of the front and back of a postcard mount according to another embodiment, FIG. 7 is a perspective view of a laminated postcard, and FIG.
The model sectional drawing in the -B line is shown. 1,15… Postcard mount, 8,9,19,20,23,26… Printed layer, 10,11,2
1,22,24,27 ... UV cured film layer, 2,16,17 ... Folded part.

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-200498 (JP, A) JP-A-2-189574 (JP, A) JP-A-1-174170 (JP, U) JP-A-2-174 104376 (JP, U)

Claims (3)

(57) [Scope of request for utility model registration] 1. A postcard having at least one fold and having a printed layer surface inside, the two printed layer surfaces being in contact with each other when the postcard is folded in two or more. Wherein a cured film layer made of an ultraviolet-curable varnish is provided on the substrate, and the cured film layers are quasi-adhered to each other. 2. A utility model registration according to claim 1, wherein the postcard mount is provided with a cut-out portion at one corner of an edge which appears on the outside of the laminated postcard, opposite to the folded portion. The laminated postcard according to item 1. 3. The postcard mount is provided on both sides or one side of the postcard mount opposite to the folded portion and with the other postcard mount on which the edges appearing outside the laminated postcard are in contact. 2. The laminated postcard according to claim 1, wherein a cured film layer made of an ultraviolet-curable varnish is provided except for a blank portion having an optimum width.