JP2000218936A - Copy form - Google Patents

Abstract

(57) [Summary] [Problem] In a copy form for preventing falsification of entries, copy and fill in a lower sheet by filling in a higher sheet, and also copy and fill in the back of a lower sheet as a copy. Make the copy image of the sheet clear. SOLUTION: A copy form 1 includes an upper sheet 3 and a lower sheet 4 superimposed on the lower side of the upper sheet 3. On the back side of the upper sheet 3, a dye-encapsulated microcapsule agent layer 11 is provided. On the front side of the sheet 4,
A self-coloring agent layer 12 composed of a dye-encapsulated microcapsule and a color developer is provided, and a transferable color developer layer 13 is provided on the surface of the self-coloring agent layer 12. The developer in the agent layer 12 reacts with the dye in the dye-containing microcapsule agent layer 11 to form a color,
This is carried out by reacting the developer of the self-coloring agent layer 12 with a dye to form a color.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a copy form in which a lower sheet is copied by filling in an upper sheet, and in particular, a falsification of entries is made by copying a back sheet of the upper sheet. It relates to a copy form that can be prevented.

[0002]

2. Description of the Related Art In a conventional copy form of this type, a dye-containing microcapsule is provided on the back side of an upper sheet, while a developer layer is provided on the front side of a lower sheet. A transferable color developer layer is provided on the surface.

[0003]

According to this conventional example,
Copying to the surface of the lower sheet is performed by the reaction between the color developer layer provided on the surface of the lower sheet and the dye-containing microcapsule material layer provided on the back surface of the upper sheet. The presence of the transferable developer layer has the disadvantage that the copied image is unclear. An object of the present invention is to provide a copy form that solves this inconvenience.

[0004]

In order to achieve this object, a copy form according to claim 1 of the present application has a lower sheet superimposed below an upper sheet having a dye-encapsulated microcapsule layer on the back side. On the surface side of this lower sheet, a self-coloring agent layer comprising a dye-encapsulated microcapsule and a color developing agent is provided, and a transferable color developing agent layer is provided on the surface of the self-coloring agent layer. It is.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments in which the present invention is applied to a copy receipt will be described below in detail with reference to the accompanying drawings. Here, FIG. 1 is a plan view, and FIG. 2 is a sectional view taken along line AA of FIG.

As shown in FIGS. 1 and 2, a copy receipt 1 is shown.
Is composed of an upper sheet 3 serving as a copy and a lower sheet 4 to be delivered to an issue destination, one end of which is stapled with a weak adhesive 2 having a weak adhesive force. As shown in FIG. 1, on the surface of the upper sheet 3, under the title 5 “Receipt”, a receipt date entry field 6, an issuer entry field 7, a receipt amount entry field 8, a receipt content entry field In addition to providing 9 entry fields, issuer indication 1
0 is printed in advance.

As shown in FIG. 2, on the back side of the upper sheet 3, corresponding to the respective entry columns of a receipt date entry column 6, an issuer entry column 7, a receipt amount entry column 8, and a receipt content entry column 9 The dye-encapsulated microcapsule layer 11 is provided in the area where the dye is to be contained.
As the microcapsules constituting the dye-containing microcapsule layer 11, known microcapsules can be used, but those formed into ultraviolet-curable inks that can be applied in spots and dried quickly without heating are preferred. It is.

On the other hand, on the front side of the lower sheet 4, although not shown, identical entry columns are provided at positions corresponding to the lower positions of the entry columns 6, 7, 8, and 9, respectively. As shown in FIG. 3, a self-color former layer 12 composed of a known dye-containing microcapsule and a developer is provided on a portion of the upper sheet 3 facing the dye-containing microcapsule layer 11. 12 is provided with a transferable color developer layer 13.

The transferable developer layer 13 is prepared as a non-aqueous transferable developer ink, and includes a developer, a fluid oil,
It is mainly composed of wax, and if necessary,
Binder, ultraviolet absorber, photopolymerization initiator, thickener,
It is prepared by adding a known auxiliary such as a gelling agent.

As the color developer, for example, viscosities, phenolic resins, polyvalent metal salts of aromatic carboxylic acids and the like, and mixtures thereof can be used.
A zinc salt of a 2-bisphenol sulfone compound or the like is preferable. In addition, as the fluid oil component, it is colorless, does not have an unsaturated double bond that hinders the reaction between the color former and the developer, and has a low viscosity and good coating suitability. For example, lubricating oil containing no aromatics and normal paraffin are preferable. Further, as the wax, a relatively hard wax having a melting point of 55 to 85 ° C. and a wax penetration of about 5 (25 ° C.) is used as the base wax, and the transferability and the contamination are controlled. For the purpose, soft wax is added to this to adjust the hardness to be low and used, for example, carnauba wax, wood wax,
There are paraffin wax, coconut wax and the like.

It is preferable to add an ethylene-vinyl acetate copolymer to the transferable developer ink, since this copolymer has high compatibility with wax and increases the viscosity of the ink. This is because it has an effect and has an effect of improving the adhesive property to the dye-containing microcapsule agent layer 11 applied to the back surface of the upper sheet 3.

Next, a method of using the copy receipt 1 configured as described above will be described. When a predetermined item is entered into each of the entry fields 6, 7, 8, and 9 of the upper sheet 3 with an appropriate writing implement such as a ball-point pen, a penetrating pressure is applied. The transferable developer ink No. 13 transfers and reacts with the dye in the dye-containing microcapsule layer 11 to form a color, and the same content is copied. At the same time, on the surface of the lower sheet 4, the developer of the self-color former layer 12 reacts with the dye of the dye-containing microcapsule layer 11 to form a color, and the developer of the self-color former layer 12 By reacting with the dye to form a color, the same contents as those in the article are clearly copied.

Here, the upper sheet 3 and the lower sheet 4 are separated and the copied lower sheet 4 is handed over to the issue destination, while the upper sheet 3 is kept as a copy of the issue source. At this time, even if the person in charge of issuing the copy receipt 1 or the person in charge of accounting alters the contents of the upper sheet 3, the regular contents are copied and entered on the back of the upper sheet 3. By comparing the description contents on the front and back surfaces of No. 3 with a glance, it is possible to determine at a glance whether the description contents on the front side are legitimate or falsified.

The present invention is not limited to the above-described embodiment. For example, the dye-containing microcapsule layer 11 provided on the upper sheet 3, the transferable developer layer 13 provided on the lower sheet 4, The color forming agent layer 12 is provided not only in the sections corresponding to the entry fields 6, 7, 8, 9 but also in the sheets 3, 4
May be provided on the entire surface. In addition, it goes without saying that the present invention can be applied to a copy form other than the copy receipt 1 that requires falsification prevention. Furthermore, upper sheet 3 and lower sheet 4
May be bound with a strong adhesive having a strong adhesive force, and a cut perforation may be provided inside the bound portion.

[0015]

As is clear from the above description,
According to the copy form described in claim 1 of the present invention, the copy entry on the lower sheet can be clearly performed, and the same regular entry content as the copy entry on the lower sheet is provided on the back of the upper sheet. Is copied, it is possible to determine at a glance whether or not the description on the front side of the upper sheet is legitimate by comparing the description on the front and back sides of the upper sheet, which is effective in preventing tampering. To play.

[Brief description of the drawings]

FIG. 1 is a plan view of a copy receipt.

FIG. 2 is a sectional view taken along line AA of FIG. 1;

[Explanation of symbols]

 1 Copy receipt 3 Upper sheet 4 Lower sheet 6 Receipt date entry field 7 Issuer entry field 8 Receipt amount entry field 9 Receipt content entry field 11 Dye-encapsulated microcapsule agent layer 12 Self-coloring agent layer 13 Transferable developer layer

Claims (1)

[Claims] 1. A lower sheet is superimposed below an upper sheet provided with a dye-encapsulated microcapsule layer on the back side, and a dye-encapsulated microcapsule and a developer are arranged on the front side of the lower sheet. A self-coloring agent layer, and a transferable developer layer provided on the surface of the self-coloring agent layer.