JPH0746551Y2 - Laminated postcards - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a laminated postcard.

More specifically, the present invention relates to a laminated postcard whose surface is covered with an opaque sheet in order to keep the content of the postcard confidential.

[Prior Art] Conventionally, it has been considered that the contents of postcards cannot be kept secret.

And, although the bills for electric gas charges printed from the output of the computer are sent by postcard, some individuals also desire to keep them secret.

Also, invoices such as credit cards printed on computers are sent in envelopes with windows, but window envelopes are expensive, it takes time to enclose documents, and postage is higher than postcards. is there.

But nowadays, postcards cannot keep secrets, so
Even though it takes a lot of trouble to put the invoice in the envelope and write the address, it is sent in the envelope.

Thus, even though the content is only one page and extremely simple, it is not reasonable to send it in an envelope due to a secret request.

[Problems to be Solved by the Invention] The present invention aims to provide a postcard that can keep the confidentiality of the postcard, particularly the postcard in which the contents printed by a computer are described, and reduce the labor of shipping. .

[Means for Solving the Problems] According to the present invention, a three-layer laminated sheet including a heat-sensitive adhesive layer, a weak adhesive coating layer, and an opaque sheet is thermocompression bonded onto a postcard with the heat-sensitive laminated surface facing the postcard. It provides a laminated postcard.

The postcard used in the present invention may be any ordinary postcard or any printable material such as a plastic sheet.

The heat-sensitive adhesive used in the present invention is a so-called hot melt adhesive and includes, for example, ethylene-vinyl acetate copolymer, polyethylene, atactic polypropylene, ethylene-ethyl acrylate copolymer, polyamide, polyester, polycarbonate, polyvinyl ether, polyvinyl. Alcohol, polyurethane, cellulosics and the like can be used.

In the heat-sensitive adhesive of the present invention, it is desirable to use a thin film of these resins.

The weak adhesive coating agent used in the present invention weakly adheres the adhesive layer and the opaque cover and also serves to cover the tackiness of the surface when a low temperature adhesive heat sensitive adhesive is used and to improve the touch. When the opaque cover is peeled off, it adheres to the adhesive layer.

As such a weak adhesive agent, a composition containing a resin having a low molecular weight, for example, a composition obtained by removing a pigment from a printing ink or the like can be preferably used.

In addition, a material having a non-sticky surface, which weakly adheres the adhesive layer and the opaque cover, can be appropriately selected and used.

The opaque cover used in the present invention needs to have an opacity to hide the description of a postcard, and may be made of any material, but has a surface such that the weak adhesive coating remains on the heat-sensitive adhesive layer when peeled off. It is necessary to be doing.

The present invention will be described in more detail with reference to the drawings of the embodiments.

The laminated postcards of FIG. 1 and FIG.
A laminated postcard obtained by thermocompressing a sheet obtained by laminating the heat-sensitive adhesive layer 3, the weak adhesive coating layer 2 and the opaque cover sheet 1 in the order shown in the figure.

The postcard 4 of this embodiment is printed with the output from the computer in advance.

The heat-sensitive adhesive layer 3 of this embodiment uses a trade name Cemedine Latiseal A7734 sold as an aqueous low temperature heat seal coating agent.

The weak adhesive coating layer 2 of this example uses TR79 varnish manufactured by Dainippon Ink Co., Ltd.

The opaque cover sheet 1 of this embodiment is a paper sheet.

In the present invention, a long series of postcard sheets are printed with computer output, and on the back side, an address is printed from the computer, and a long heat-sensitive adhesive layer, a weak adhesive coating and an opaque cover sheet are printed. It is convenient to use a method in which a continuous laminated sheet consisting of (1) is laminated on the surface described in the above printing by thermocompression bonding and then cut and separated into a postcard size.

In the operation of stacking a continuous laminated sheet of opaque cover sheets on a postcard sheet, since the heat-sensitive adhesive layer does not stick when it comes into contact with the surface of the postcard sheet, it is possible to easily prepare an accurate laminate after stacking. On the other hand, when a pressure sensitive adhesive is used as the adhesive for the opaque cover sheet, the laminated state cannot be corrected if the adhesive is displaced and bonded once.

By doing so, the address and contents are automatically described by the computer, and the envelope can be shipped without the trouble of fitting.

In this case, it is convenient to attach the release sheet to the opaque cover sheet laminated sheet until use.

[Advantages of the Invention] If the postcards of the present invention are used, since they are entirely laminated, they are treated as postcards according to the classification of mail items, but the contents are kept secret and stored in envelopes. Moreover, the effect of completely saving labor for sealing the envelope and addressing is great.

Further, since the postcard of the present invention can be printed and manufactured in parallel, there is an advantage of further labor saving.

[Brief description of drawings]

FIG. 1 is a front view of a laminated postcard according to an embodiment of the present invention.
FIG. 2 is a vertical cross-sectional view thereof, in which the reference numeral is 1; an opaque cover sheet, 2; a weakly adhesive coating layer, 3; a heat-sensitive adhesive layer, 4;
It is a postcard.

Claims (1)

[Scope of utility model registration request] 1. A laminated postcard in which a three-layer laminated sheet consisting of a heat-sensitive adhesive layer, a weakly adhesive coating layer and an opaque sheet is thermocompression-bonded with a heat-sensitive laminated surface facing a postcard.