JPH09109575A - Copy cut form set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily discover a falsification by providing a microcapsule layer containing electron donative colorless dye dissolved in solvent as a core substance on the rear surface of a first cut form, providing a transparent fluorescent copy ink layer on the predetermined area of the microcapsule layer, and providing an electron acceptive color developer layer on the front surface of a second cut form. SOLUTION: The copy cut form set 1 comprises a microcapsule layer 7 having first and second cut forms 2, 3 bound by adhesive 4 at the one end sides in such a manner that electron donative colorless dye is dissolved or dispersed in solvent and provide as core substance on the rear surface of the form 2, and an electron acceptive color developer layer 8 provided on the front surface of the form 3. The set 1 further comprises a transparent fluorescent copy ink layer 9 containing a fluorescent substance and provided on the surface of the layer 7 corresponding to an amount fill-in column 6. According to this, when an ultraviolet ray is emitted, the number copied to the column 6 of the copy image is the copy image with the transferred fluorescent ink, and hence emits a light, and can be recognized in the state different from the other copy image.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a copy form set, and more particularly to a copy form set in which alteration of information such as characters, numbers and symbols copied on a form is prevented.

[0002]

2. Description of the Related Art Conventionally, as a method for preventing alteration of characters, numbers, symbols, etc. copied on a form, a method such as coloring a copied image with a specially adjusted dye capsule, which is different from the color normally used, has been adopted. There is.

[0003]

However, in these methods, since the color of the copied image can be visually confirmed, it is relatively easy to select the dye, and the tampered product is genuine or tampered with. It was also difficult to determine what was happening.

In view of the above circumstances, the present invention has an object to make it impossible to distinguish the copied characters, numbers, symbols, etc., from the ordinary general copied image with the naked eye. You can easily check if it has been tampered with,
It is intended to provide a copy form set in which tampering can be easily found.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and comprises a first form and a second form that overlaps the first form. On the back surface of the form, a microcapsule layer having a core substance of a solution or dispersion of an electron-donating colorless dye in a solvent is provided,
At least one set of forms in which a transparent fluorescent copying ink layer containing a fluorescent substance is provided in a predetermined region of the microcapsule layer, and an electron-accepting developer layer is provided on the surface of the second form. It is intended to solve the above problems by providing a copy form set including the copy form set.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Next, the present invention will be described in detail based on the embodiments shown in FIGS. In the figure, reference numeral 1 is a copy form set 1 in which a first form 2 and a second form 3 are bound together by an adhesive 4 at one end side thereof, and cut-out perforations 5 are provided along the inside of the bound portion. Has been. On the front side of the first form 2 and the second form 3, the date, name, and
An entry field 6 for the amount of money is provided. On the back side of the first form 2, a microcapsule layer 7 having a core substance that is obtained by dissolving or dispersing an electron-donating colorless dye in a solvent is provided. A receptive developer layer 8 is provided. A transparent fluorescent copying ink layer 9 containing a fluorescent substance is further provided on the surface of the microcapsule layer 7 of the first form 2 corresponding to the amount entry field 6.

The transparent fluorescent copying ink layer 9 is made of Zn ₃ Si.
Wavelength 20 of O ₄ / Mn, CaWO ₄ , CaWO ₄ / Pb, etc.
A colorless fluorescent pigment that emits ultraviolet light of 0 to 300 nm, a colorless fluorescent pigment such as ZnS / Cu that emits ultraviolet light of wavelength 301 to 450 nm, or a mixture and a binder are prepared.

In the copy form set 1 constructed as described above, as shown in FIG. 3, the date, name, amount, etc. are entered in an entry field 6 on the front side of the first form 2 with an appropriate writing tool, for example, a ballpoint pen. As a result, a copy image 10 in which the date, name, amount, etc. are copied by the carbonless copying method in the entry field 6 on the front surface of the second form 3 can be obtained. The visual interpretation of the copy image 10 of the second form 3 on which the information is copied is recognizable in the same manner as the copy image 10 of a normal carbonless copy, and the amount of money provided with the fluorescent copy ink layer 9 is entered. Copy image 1 of the field and other fields
A 0 is likewise recognized.

The copy image 10 thus copied and entered in the entry field 6 of the second form 3 looks uniform to the naked eye, but when ultraviolet light is emitted from the fluorescent lamp K as shown in FIG. The copy image 10 is copied to the amount entry column of the portion corresponding to the fluorescent copy ink layer 9 in the copy image 10 "380
The number "00" is the copy image 10 to which the fluorescent ink has been transferred, so that the number emits light and can be recognized in a state different from other copy images 10.

Therefore, if, for example, the number "3" in the amount of money is tampered with by the contact of the capsule surface of another carbonless paper with "8", the tampered portion as shown in FIG. Since there is no fluorescent ink, only the contour portion of "3" emits light, and it can be easily confirmed that "3" has been tampered with.

In the above example, the fluorescent copy ink layer 9 is used.
Is provided in the portion corresponding to the amount entry field 6, but it may be provided in any place including the date entry field.

[0012]

The copy form set of the present invention has the structure described above. Since the fluorescent copy ink layer is provided on the surface of the microcapsule layer, the solvent is deposited due to the destruction of the microcapsule at the time of writing a copy. It is said that the transfer of the fluorescent copy ink layer can be performed well, and the carbonless copy image and the carbonless copy image transferred with the fluorescent ink are tamper-proof because it is difficult to distinguish them with the naked eye. Since it is difficult to find out, the tampering prevention effect is enhanced, and even if the information is tampered with, it has an excellent effect that it can be easily discovered by irradiation with ultraviolet light.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a copy form set according to the present invention.

FIG. 2 is an explanatory diagram showing a cross section taken along line AA of FIG.

FIG. 3 is an explanatory diagram showing a second form.

FIG. 4 is an explanatory diagram showing a state in which a second form is irradiated with ultraviolet light.

FIG. 5 is an explanatory diagram showing a part of a copied image.

[Explanation of symbols]

 1 Copy Form Set 2 First Form 3 Second Form 7 Microcapsule Layer 8 Developer Layer 9 Fluorescent Copy Ink Layer

Claims (1)

[Claims] 1. A first form and a second form which overlaps the first form, wherein the back side of the first form has an electron-donating colorless dye dissolved or dispersed in a solvent. A microcapsule layer as a core substance is provided, a transparent fluorescent copying ink layer containing a fluorescent substance is provided in a predetermined region of the microcapsule layer, and an electron-accepting developer layer is provided on the surface of the second form. A copy form set including at least one set of forms.