JPH10272866A - Lower sheet for pressure sensitive copying and pressure sensitive copy cut form with it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent falsification or forgery by forming a copy impossible part of a predetermined shape on a developer layer provided on a rear surface of a base sheet by selectively cutting developer by laser emitting, thereby assem bling a void image made of fine pattern in copy information. SOLUTION: A basic constitution of a sheet 1 under pressure sensitive copy comprises a developer layer C on a rear surface of a base sheet F, and a copy impossible part D of a predetermined shape on the layer C by selectively cutting the developer by laser emitting. The part D is formed in a fine pattern such as, for example, a partial enlarged view, microscopic letter, line segment (straight line, wavy line, broken line or dotted line). Since the developer is removed, it does not have copying function. The part D of a predetermined shape may be formed of an entire developer surface or desired part in a spot manner. Further, a developer microcapsule layer may be formed on a backside of the base sheet.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carbonless type pressure-sensitive copying paper and a pressure-sensitive copy form, and more particularly, to falsification of information copied from a pressure-sensitive copying paper to a pressure-sensitive copying paper. The present invention relates to a pressure-sensitive copying paper that can be suitably used for preventing forgery by a color copier or the like, and a pressure-sensitive copying form having the same.

[0002]

2. Description of the Related Art Conventionally, a paper for pressure-sensitive copying in which a microcapsule layer containing an electron-donating color developing agent such as crystal violet lactone or benzolecomethylene blue is provided on the back surface of a base sheet, and phenol formaldehyde is provided on the surface of the base sheet. Pressure-sensitive copying forms in combination with a pressure-sensitive copying paper coated with an electron-accepting developer layer such as resin or activated clay are known, and various delivery slips, application forms,
It is suitably used for DM and the like.

[0003]

However, the information copied on the paper under pressure-sensitive copying may sometimes be falsified or forged by a malicious third party. These include, for example, scraping copy information and adding falsification information with another pressure-sensitive copy paper,
Alternatively, it may be performed by forging the pressure-sensitive copying paper itself with a high-performance color copier.

[0004] In view of the above problems, the present invention provides a pressure-sensitive copying sheet for preventing falsification of information copied on the pressure-sensitive copying sheet and forgery by a copying machine, and a pressure-sensitive copy sheet having the same. The purpose is to provide.

[0005]

In recent years, the development of laser technology has been remarkable. In particular, the technology of freely moving and deflecting laser light using a variable mask, a plotter mechanism (XY-axis direction moving mechanism), a polygon mirror, and the like has been developed. It is frequently used in the field of the parts manufacturing industry, particularly for marking on metal surfaces. Recently, the technology has been rapidly developed, and marking of micro-characters and the like has become possible.

Therefore, the present inventor pays attention to this laser technology, and in order to achieve the above-mentioned object, selectively removes the color developer layer on the surface of the base sheet by laser irradiation to form a copy-prohibited portion having a predetermined shape. The present inventors have found that a new pressure-sensitive copy paper can be prepared and used to provide a pressure-sensitive copy form that makes falsification and forgery difficult, and the present invention has been made.

That is, in the pressure-sensitive copying paper according to the present invention, a non-copyable portion having a predetermined shape, in which the developer is selectively removed by laser irradiation, is applied to the developer layer provided on the back surface of the base sheet. It is characterized by being done.

[0008] In a preferred pressure-sensitive copying paper of the present invention, the shape of the non-copyable portion is a fine pattern such as a micro character, a line, or a repetitive pattern.

Further, the pressure-sensitive copy form of the present invention comprises a lower form made of the above-described pressure-sensitive copy sheet having an information copy section on a predetermined portion of the surface of the color developing agent layer on which a non-copyable section of a predetermined shape is provided;
An upper form made of pressure-sensitive copying paper having an information entry section corresponding to the information copying section on the front side is bound to be separable.

In order to form a non-copyable portion having a predetermined shape on the color developer layer of the paper under pressure-sensitive copying, a laser beam is applied to the color developer layer based on predetermined shape data input to the laser irradiation device. Irradiation is performed. The developer in the portion selectively irradiated with the laser is burned or sublimated, and is instantaneously scraped off, thereby forming a copy impossible portion having a predetermined shape.

The non-copyable portion having a predetermined shape depends on the size of a copy entry field, that is, the size of characters to be entered, but is usually small enough not to make the copy information difficult to read. Therefore, fine patterns such as micro-characters, lines, and repetitive patterns are preferred. When a non-copyable portion having such a shape is formed, a white image composed of a fine pattern or the like is incorporated in the copy information, so that it is difficult to falsify, and it is difficult for a copy machine to appear and forgery is difficult.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on preferred embodiments. FIG. 1 is a plan view of the surface of the paper under pressure-sensitive copying of the present invention and a partially enlarged view of the accompanying paper.
FIG. 2 is a schematic cross-sectional explanatory view of a partially enlarged view of FIG. 1, FIG. 3 is an exploded explanatory view of a pressure-sensitive copying form of the present invention, FIG. 4 is an enlarged explanatory view of copy information applied to a sheet under pressure-sensitive copying, FIG. 5 is a diagram for explaining a method of forming a non-copyable portion having a predetermined shape on the color developer layer.

As shown in FIG. 1, the basic structure of the paper 1 under pressure-sensitive copying according to the present invention is such that a developer layer C is provided on the back surface of a base sheet F, and the accompanying partial enlarged view as shown in FIG. The developer layer C is provided with a non-copyable portion D of a predetermined shape formed by selectively removing the developer by laser irradiation. The non-copyable portion D is composed of, for example, a fine pattern such as a partially enlarged view (a): a micro character or (b): a line (straight line, wavy line, dashed line, dotted line, etc.), as shown in FIG. Does not have a copying function because the developer has been removed.

Next, an embodiment of the pressure-sensitive copy form of the present invention will be described. As shown in FIG. 3, the pressure-sensitive copy form 10 of this embodiment is
Is a lower form 11 consisting of the pressure-sensitive copying paper 1 of the present invention as a "receipt (copy)" and the pressure-sensitive copying paper 2 as a "receipt"
And the upper form 12 composed of a perforated line and an adhesive. Paper under pressure-sensitive copying 1,
A predetermined portion of the surface of the base sheet F of the pressure-sensitive copying paper 2 is provided with general information 3 such as a title, a company name, a description, and the like. An information entry unit 4 such as a date column and an amount column is provided, and a corresponding information copying unit 5 is applied to the pressure-sensitive copy sheet 1 to form a lower form 11 and an upper form 12.

Therefore, the information entry section 4 of the upper form 12
When predetermined information is entered in the information copy unit 5 of the lower
As shown in FIG. 4, the copy information 6 applied to the pressure-sensitive copying paper 1 includes a white image d of a fine pattern corresponding to the uncopyable portion D having a predetermined shape of the developer layer C on the pressure-sensitive copying sheet 1 (this drawing). Is indicated by a dotted line).

The paper under pressure-sensitive copying in the present invention is:
Even if a developer layer is formed by applying a water-based paint of a developer to the entire surface of the base sheet, the developer is spot-colored in a predetermined area including the information copying section with the developer ink. An agent layer may be provided. In addition, the non-copyable portion having a predetermined shape may be applied to the entire surface of the developer layer or only to a desired portion in a spot-like manner. further,
Form a color former microcapsule layer on the back of the base sheet,
It may be configured as a sheet during pressure-sensitive copying.

Hereinafter, an example of a method of forming a non-copyable portion having a predetermined shape on the color developer layer will be described with reference to FIG. The non-copyable portion having a predetermined shape is formed on the developer layer C with respect to a conventional pressure-sensitive copying paper web W (hereinafter, referred to as a web W) having a large number of feed holes H in a marginal portion. Done. The web W is formed by applying a developer layer C in a spot form with a developer ink on the surface of a long base sheet F.

The feed hole H is engaged with a tractor pin of the tractor device T, and the web W is transferred in a predetermined direction by driving the tractor device T. In the transfer path of the web W, a carbon dioxide laser light oscillator L with a built-in variable mask and movable in the width direction and the transfer direction of the web W in order to convert the traveling direction of the laser light emitted therefrom to form variable information A pair of polarizing mirrors M, M, etc., which are incorporated in a simple plotter mechanism (not shown) and are configured to be rotatable, are provided.

An encoder for detecting the feed amount of the web W is connected to the tractor device T, and detects the feed amount by converting the rotation amount of the tractor device T into a pulse signal. When the converted pulse signal is sent to the control unit, the control unit sends the color developer at a timing corresponding to the feed amount, that is, at a laser irradiation position (at which a suction drum V for stabilizing the focus is installed). When the layer C arrives, a control signal is issued to the laser light oscillator L and the drive unit of the polarizing mirrors M, M based on the input shape data to control laser oscillation and driving.

In this manner, the color developer in the portion selectively irradiated with the laser is instantaneously scraped off, whereby the color non-copyable portion D is formed on the color developer layer C. Further, the change of the shape of the non-copyable portion D is made by another control signal based on another shape data input to the control portion.

In the example of forming a non-copyable portion shown in FIG. 5, a laser beam is irradiated through a variable mask to form a non-copyable portion having a predetermined shape on the developer layer, and a plotter mechanism is used. Although a laser irradiator having a built-in and rotatable polarizing mirror is used, the present invention is not limited to this, and various types of laser irradiators used for laser image formation can be used. .

Further, a suction drum V for stabilizing the focus is provided at the laser irradiation position so that the focal length of the laser light does not shift during the irradiation of the laser light. Is applied so that the form does not loosen, but other than this method, for example,
It may be wound around a large-diameter roll at a predetermined wrap angle, and a laser irradiation section may be set in this wrap portion.

[0023]

As described above, according to the pressure-sensitive copy paper and the pressure-sensitive copy form having the same according to the present invention, the developer is selectively scraped off by laser irradiation, and the predetermined layer is formed on the developer layer. By giving the uncopyable part of the shape, a blank image consisting of a fine pattern etc. is incorporated in the copy information, making it difficult to falsify, and because it is difficult to appear with a copy machine, it is difficult to forge. To give up.

[Brief description of the drawings]

FIG. 1 is a front plan view of a pressure-sensitive copying sheet according to the present invention and a partially enlarged view of accompanying paper.

FIG. 2 is a schematic sectional explanatory view of a partially enlarged view of FIG. 1;

FIG. 3 is an exploded view of the pressure-sensitive copy form of the present invention.

FIG. 4 is an enlarged explanatory view of copy information applied to a pressure-sensitive copy sheet.

FIG. 5 is a diagram illustrating a method of forming a non-copyable portion having a predetermined shape on a color developer layer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pressure-sensitive copy lower paper 2 Pressure-sensitive copy upper paper 4 Information entry section 5 Information copy section 6 Copy information 10 Pressure-sensitive copy form 11 Lower form 12 Upper form F Base sheet C Developer layer D Non-copyable part d Blank image W Paper web under pressure-sensitive copying of conventional configuration L Laser light oscillator M Polarizing mirror V Suction drum

Claims (3)

[Claims] 1. A developer layer provided on the back surface of a base sheet,
A pressure-sensitive copying sheet provided with a non-copyable portion having a predetermined shape formed by selectively removing a developer by laser irradiation. 2. The pressure-sensitive copying paper according to claim 1, wherein the shape of the uncopyable portion is a fine pattern such as a micro-character, a line, or a repetitive pattern. 3. A lower form comprising pressure-sensitive copying paper according to claim 1, further comprising an information copying section on a predetermined portion of the surface of the developer layer on which a non-copyable portion having a predetermined shape is provided, and the information copying section on the surface. A pressure-sensitive copy form that is separably bound to an upper form made of pressure-sensitive copy upper paper having an information entry section corresponding to each copy.