JPH0612956Y2 - Laminated sheet for pressure-sensitive printing - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a laminated sheet capable of printing the output of a computer, which keeps the secret of the printed contents and is waterproof. The present invention relates to those used for communication such as postcards for specific addresses.

[Prior Art] Conventionally, a card on which an output from a computer is printed is mailed by a postcard or an envelope.

Invoices for gas, tap water, electricity, telephone charges, etc. may be sent by postcard, and these contents may also belong to the privacy secret depending on the personality of the individual or depending on the situation. Is desirable.

On the other hand, particularly confidential items such as loan bills and salary statements are sent by mail or by depositing a card with computer output printed in an envelope.

However, it takes time and effort to put the printed card in the envelope, and it is necessary to use a windowed envelope so that the address can be seen from the outside, which is expensive.

[Problems to be Solved by the Invention] It is an object of the present invention to provide a waterproof laminated sheet for pressure-sensitive printing of a computer output, in which the confidentiality of the contents is protected and which does not require an envelope. .

[Means for Solving Problems] The inventors of the present invention laminated a plastic film as a cover of a printing card such as a postcard, and type-printed on the plastic film to provide a space between the plastic film and the card. With the pressure-sensitive copying system, the privacy of the contents such as postcards can be maintained depending on the printing method.
Moreover, it can prevent the printed surface from getting wet due to rain etc. and become unclear, and because it is printed from above the plastic film that is thinner than paper, it makes the pressure-sensitive printing type characters that tend to be unclear usually clear. The present invention has been completed with the idea that there are advantages such as being possible.

That is, according to the present invention, a plastic cover film coated with a transfer dye layer is laminated on a printing card so that the coating surfaces face each other, the periphery of both layers is fixed, and a plastic cover film is formed along the inside of the fixed portion. A cover sheet is provided with perforations, and cutouts are provided at the corners of the perforations to provide a pressure-sensitive printing laminated sheet.

The printing card used in the present invention is usually made of paper, but any plastic sheet having a printable surface can be used.

For example, a writable surface-treated plastic sheet such as synthetic paper or a roughened sheet can be used.

As the print card of the present invention, a print card on which the form portion is printed in advance can be used.

In this case, a numerical value or other information of a certain character from a computer can be entered in the blank of the above-mentioned form by type-printing on the plastic cover film.

As the transfer dye layer used in the present invention, those used in the known pressure-sensitive transfer system used in the pressure-sensitive printing method can be appropriately used.

That is, for example, it is possible to use a printing card in which a coating material containing microcapsules containing a dye is applied to the back surface of a plastic film and a developer is applied to the opposite surface of the coating layer.

When printing is done from the top of the plastic film to this laminated system, the dye inside is transferred to the facing surface while the capsule on the back side is destroyed by the type pressure, and the color develops by acting with the dye and the developer on the facing surface. It is possible to use a method in which the printing appears.

In addition, for example, a method is used in which a carbon-containing transfer ink is simply applied to the back of the upper surface and is pressed by the type pressure from above the upper surface film, and the carbon layer is transferred to the facing surface of the printing card to print. can do.

The periphery of the printing laminated sheet of the present invention may be adhesively fixed, and the cover film may be opened by providing perforations along at least two sides of the rectangular adhesive fixing portion.

The laminated sheet for printing of the present invention can be further provided with notches at the corners of the perforations so that the thin cover film can be easily peeled off.

The present invention will be described in more detail by way of examples.

Embodiment 1 One of the embodiments of the present invention is, as shown in FIG. 1 and FIG. 2, that an inner surface of a print card 2 is roughened by corona discharge, and a carbon-containing transfer is performed thereon. A rectangular plastic cover film 1 coated with an ink layer (roughening treatment and carbon ink layer is not shown) is laminated, and its periphery is adhesively fixed with an adhesive 4 and the inside of the adhesive fixation 4 is fixed. Perforations 3 are provided.

In this adhesive fixing, it is preferable to use a stronger adhesive, for example, a heat-sensitive adhesive than the pressure-sensitive adhesive, from the viewpoint of the secret sealing property.

At the lower left corner of the perforation 3, a perforation portion of the plastic cover film 1 is cut out by a corner cut 5. A matte ink is applied to the outer surface 8 of the upper half of the plastic cover film 1 for writing.

In this embodiment, the output from the computer is typed into the blank area of the preprinted form from above the plastic cover film 1 and the carbon layer applied to the plastic film by the pressure of the type is printed. Characters can be type-printed on the lower half portion 9'of the printing card by being transferred onto the card 2.

In this embodiment, since the periphery of the print card 2 and the opaque plastic cover film 1 are fixed by an adhesive, the contents of the print card cannot be seen unless the plastic cover film 1 is broken.

In this embodiment, the plastic cover film 1 is easily broken by the perforations 3. Furthermore, since there is a notch of the corner cut 5 in the lower left corner, it is easy to peel it off from here with a nail.

It can be peeled off from here to break the perforations 3 and see the contents of the printed card.

Instead of the combination of perforations and notches as in the present embodiment, as shown in FIG. 5, perforations of intermittent cuts that extend through the perforation surface to three ends and penetrate the print card may be provided. it can. The plastic cover film 1 can be opened by cutting all the edges of the print card from the perforations.

The perforations 3 of this embodiment intermittently cut the plastic cover film 1, but the intermittent cut does not penetrate the printed card 2.

In the present embodiment, the sewing machine surface 3 is provided on all sides, but in some cases, it may be a part thereof.

Matte ink is applied to the writing portion 8 on the upper half of the plastic cover film 1 so that writing can be performed.

This writing portion is a portion for writing an address and the like, and this can be written by a type output by a computer or by handwriting.

As the ink used for the writing portion, inks containing an inorganic substance such as matte ink can be used. Further, any material can be used as long as it is writable, such as a material that is roughened by corona discharge to provide writability.

Further, instead of imparting writability by surface treatment of the plastic film, a plastic film having a writable surface such as synthetic paper can be used.

In this case, for example, a method of providing a foamed layer on the surface and a method of blending a filler and then stretching to provide a void on the surface are suitable for the present invention because they achieve roughening and opaqueness at the same time. Can be used for

The type for the writing portion is different from the printing of the lower half in that ink is essential. Therefore, the upper half of the printed card 2 can be written at the same time as the upper half of the plastic cover film 1.

The lower half of the description, which requires confidentiality, is type printing that does not use ink, and can be printed only on the printing card 2 by transferring the carbon layer applied to the back of the plastic cover film 1.

The laminated sheet of this embodiment is of a single-leaf type, and is used for a system in which the laminated sheets of this embodiment are continuously and automatically fed one by one and the computer output is type-printed on the sheet.

Further, it is possible to form a three-layer laminated sheet structure in which a copy sheet is reversibly adhered to the laminated sheet of this embodiment with a pressure sensitive adhesive. In this case, the printing type can be implemented entirely with ink,
The same print is printed in the same format as the print card 2.

Further, the number of copy sheets can be increased as needed.

In this case, the situation in which the confidential printing is not printed on the plastic cover film 1 is the same as in the second embodiment.

Second Embodiment In contrast to the first embodiment, the embodiment of the present invention shown in FIGS. 3 and 4 is a continuous type in which guide holes (merle punches) are provided on both sides used for the most commonly used computer output. This is the case for sheets.

In the case of the laminated sheet of this example, the laminated structure is 3
It has become a sheet.

A copy sheet 11 is provided on the top layer, a plastic cover film 1 is provided on the middle layer, and a continuous printing card 2 is provided on the bottom layer.
There is a continuous laminated structure.

The structure of the intermediate layer, the lower layer, and the laminated surface is the same as that of Example 1, except that the upper half 8 of the front surface of the plastic cover film 1 as the intermediate layer is coated with the matte ink and the color developer. The address and the like can be printed on the surface of the plastic cover film 1 by transferring the dye-containing capsule applied to the inner surface of the upper half of the copy sheet 11. (The matte ink layer, developer layer, and capsule layer are not shown).

In this embodiment, matte ink is applied to the entire front and back surfaces of the plastic cover film 1. The matte ink coated surface in the table imparts writability to the surface of the film, and the matte ink coated surface on the backside is not essential to the present invention, but is desirable because it has the effect of increasing the adhesiveness with the transfer dye capsule layer. .

In order not to print the secret contents on the plastic cover film 1, the method of applying the dye-containing capsules only to the upper half of the back surface of the copy sheet 11 or, conversely, applying the dye-containing capsules to the entire surface, Any of the methods of applying the color developer to only the upper half of the front surface of the plastic cover film 1 can be adopted.

Further, as a method for dividing the pressure-sensitive printing portion on the front surface of the plastic cover film 1 as described above, the pressure-sensitive printing agent is applied to the entire surface of both sides, and then one of the predetermined surfaces is desensitized. It is possible to employ a method of printing ink to prevent contact between the dye of the capsule and the developer.

When the method of applying the entire surface of the plastic cover film with a matte ink or the like is adopted, it is convenient because the plastic film can be made opaque and the writability can be imparted.

Due to this laminated structure, when the computer output is written on the copy paper 11 on which the form is printed in advance by using the ink tape, the upper half of the computer output is displayed on the plastic cover film 1. Is printed on the plastic cover film 1, but the computer output corresponding to the lower half is not printed on the plastic cover film 1. Then, the same description as the copy sheet 11 will be written on the print card 2.

The computer output continuous laminated sheet used in this embodiment is composed of three layers as described above, but after the computer output is written on the surface of the copy sheet 11 of the continuous laminated sheet, the laminated sheet is cut by the cut line 12. It can be cut from the border paper 13 provided with the guide holes 10 on both sides and from the upper and lower laminated sheets.

The perforation line 12 is formed by an intermittent sewing surface that penetrates all three layers.

In the case of the present embodiment, the copy sheet 11 is not adhered to the lower layer in the periphery, so that the copy sheet 11 is released from the lower layer when cut. This can be saved as a copy sheet.

Before cutting this copy sheet, use the border paper 13 on both sides to
The sheets are glued and fixed.

When the computer output is continuously printed on the continuous output paper of the present embodiment and the print card portion is cut off by perforations, the copy paper 11 is released, and thereafter, in the case of the first embodiment. The same thing as the two-layer laminated sheet after printing by computer output is obtained.

Example 3 This is a case where a thick plastic sheet is used as the print card 2 of Example 2. In this case, fusion by heat sealing can be used instead of adhesive fixing around the rectangle. In this way, when the plastic sheet is used for the print card 2, the waterproof performance and the confidentiality retention are further perfected.

[Advantage of the Invention] Since the laminated sheet for communication printing of the present invention cannot be restored once it is opened during communication, it can be identified that it has been opened. be able to. In addition, it is possible to prevent the printed surface from bleeding in rainwater, etc. Moreover, since pressure-sensitive printing is performed through a flexible plastic film, pressure-sensitive printing is performed through paper. You can make clear prints.

Further, the laminated printing sheet of the present invention can be used as continuous paper or single-leaf paper for computer output, so that the contents can be written on the internal printing card from the outside of the sealing sheet according to the type of computer output. can do.

Further, if a copy sheet is used and type-printed on it, when copying to the lower plastic film, for example, only the upper half part of the address etc. is selectively divided,
A description can be made.

In this case, it is convenient that printing can be performed using ink in both upper and lower parts.

[Brief description of drawings]

1 is a plan view of an embodiment of the present invention, FIG. 2 is a sectional view thereof, FIG. 3 is a plan view of another embodiment of the present invention, and FIG. 4 is a sectional view thereof. It is a figure. Reference numerals in the drawing are 1 ... Cover film, 2 ... Print card, 3 ... Perforation, 4 ... Fixed part, 5 ... Notched part, 6 ... Side edge part, 7 ... Upper and lower end parts , 8 ...... upper half writing part, 9 ...... lower half part, 10 ...... Merle punch,
11 ... copy sheet, 12 ... cutting line, 13 ... border paper.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Shown 52-21531 (JP, U) Shown 57-56175 (JP, U) Shown 53-19450 (JP, U) Shown 54- 3789 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A plastic cover film coated with a transfer dye layer is laminated on a printing card so that the coating surfaces face each other, the periphery of both layers is fixed, and the plastic cover is provided along the inside of the fixed portion. A laminated sheet for pressure-sensitive printing, characterized in that the film is provided with perforations, and notches are provided at the corners of the perforations.