JP3701099B2 - Paper under pressure-sensitive copying and pressure-sensitive copying form having the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a carbonless type pressure-sensitive copying paper and a pressure-sensitive copying form. More specifically, the information copied from the pressure-sensitive copying upper paper to the pressure-sensitive copying paper is falsified by a color copy machine or the like. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure-sensitive copying lower sheet that can be suitably used for prevention, and a pressure-sensitive copying form having the same.
[0002]
[Prior art]
Conventionally, pressure-sensitive copying paper with a microcapsule layer containing an electron-donating color former such as crystal violet lactone or benzoleucomethylene blue on the back side of the base sheet, and phenol formaldehyde resin or activated clay on the base sheet surface. A pressure-sensitive copying form combined with a pressure-sensitive copying lower sheet provided with an electron-accepting color developer layer is publicly known and is suitably used for various delivery forms, application forms, DMs and the like.
[0003]
[Problems to be solved by the invention]
However, information copied to the paper under pressure-sensitive copying is sometimes falsified or forged by a malicious third party. These may be done, for example, by scraping the copy information and newly adding tampering information on another pressure-sensitive copying paper, or forging the pressure-sensitive copying paper itself with a high-performance color copier. is there.
[0004]
Therefore, in view of such problems, the present invention provides a pressure-sensitive copying sheet that prevents falsification of information copied on the pressure-sensitive copying sheet and forgery by a copying machine, and a pressure-sensitive copying form having the same. Objective.
[0005]
[Means for Solving the Problems]
In recent years, the development of laser technology has been remarkable, and in particular, the technology for freely moving and deflecting laser light using a variable mask, plotter mechanism (XY axis direction movement mechanism), polygon mirror, etc. Recently, the technology has developed rapidly, and micro characters can be marked.
[0006]
In view of this, the present inventor has paid attention to this laser technology, and in order to achieve the above-mentioned object, the developer layer on the surface of the base sheet is selectively scraped off by laser irradiation to provide a non-copyable portion having a predetermined shape. It has been found that a pressure-sensitive copying form can be provided by making a sheet under pressure-sensitive copying and making it difficult to falsify or counterfeit by using the sheet.
[0007]
In other words, the paper under pressure-sensitive copying of the present invention has a non-copyable portion having a predetermined shape formed by selectively scraping off the developer by laser irradiation on the developer layer applied to the back surface of the base sheet. It is characterized by that.
[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 repeated pattern.
[0009]
Further, the pressure-sensitive copying form of the present invention comprises a sub-form formed of the above-mentioned pressure-sensitive copying lower sheet having an information copying part at a predetermined part of the developer layer surface provided with a non-copyable part of a predetermined shape, The upper form made up of pressure-sensitive copying upper paper having an information entry section corresponding to the information copying section is separably bound together.
[0010]
Formation of a non-copyable portion of a predetermined shape on the developer layer of the paper under pressure-sensitive copying is performed by irradiating the developer layer with laser light based on predetermined shape data input to the laser irradiation device. Is done. The portion of the developer selectively irradiated with the laser is burned or sublimated and scraped off instantaneously, thereby giving a non-copyable portion having a predetermined shape.
[0011]
The non-copyable portion having a predetermined shape is preferably a fine one that does not make the copy information difficult to read, although it depends on the size of the copy entry field, that is, the size of the entered characters. Therefore, a fine pattern such as a micro character, a line, and a repeating pattern is suitable. When a non-copyable portion having such a shape is formed, a blank image composed of a fine pattern or the like is incorporated into the copy information, so that it is difficult to tamper with and difficult to appear with a copy machine, and forgery is also difficult.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail based on preferred embodiments. Here, FIG. 1 is a plan view of the surface of the pressure-sensitive copying paper of the present invention and a partial enlarged view of the accompanying sheet, FIG. 2 is a schematic sectional explanatory view of the partial enlarged view of FIG. 1, and FIG. 4 is an exploded explanatory view of a copy form, FIG. 4 is an enlarged explanatory view of copy information applied to a sheet under pressure-sensitive copying, and FIG. 5 is an explanatory view of a method for forming a non-copyable portion of a predetermined shape on a developer layer.
[0013]
As shown in FIG. 1, the basic structure of the pressure-sensitive copying lower sheet 1 of the present invention is such that the developer layer C is applied to the back surface of the base sheet F, and the developed partial color is shown in the accompanying partial enlarged view. The agent layer C is provided with a non-copyable portion D having a predetermined shape formed by selectively scraping off the developer by laser irradiation. This non-copyable portion D is composed of, for example, a fine pattern such as a partially enlarged view (b): micro characters and (b): filaments (straight line, wavy line, broken line, dotted line, etc.), as shown in FIG. Since the developer is removed, it does not have a copying function.
[0014]
Next, examples of the pressure-sensitive copying form of the present invention will be given.
As shown in FIG. 3, the pressure-sensitive copying form 10 of this embodiment includes a lower-order form 11 comprising the pressure-sensitive copying lower sheet 1 of the present invention as a “receipt (deduction)” and a pressure-sensitive copying upper sheet 2 as a “receipt”. The upper form 12 consisting of the above is bound at the end so as to be separable by a sewing line and an adhesive. General information 3 such as a title, company name, and description is given to a predetermined portion of the surface of the base sheet F of the pressure-sensitive copying lower paper 1 and the pressure-sensitive copying lower paper 2, and the pressure-sensitive copying upper paper 2 An information entry unit 4 such as a customer name column, a receipt date column, and an amount column is provided, and a corresponding information copy unit 5 is provided on the pressure-sensitive copying lower sheet 1, and accordingly, a lower form 11 and an upper form 12 are provided. Is configured.
[0015]
Accordingly, when predetermined information is entered in the information entry section 4 of the upper form 12, the copy information 6 applied to the information copy section 5 of the lower form 11 is displayed in the pressure-sensitive copying lower sheet 1 as shown in FIG. A fine pattern white image d (indicated by a dotted line in this figure) corresponding to the non-copyable portion D of the predetermined shape of the colorant layer C is incorporated.
[0016]
Even if the paper under pressure-sensitive copying in the present invention is formed by applying a developer-based water-based paint on the entire surface of the base sheet and applying a developer layer, information copying is performed with developer ink. A developer layer may be spot-coated on a predetermined region including the portion. Further, the non-copyable portion having a predetermined shape may be spot-applied on the entire surface of the developer layer or only on a desired portion. Further, a color former microcapsule layer may be formed on the back surface of the base sheet to constitute a sheet during pressure-sensitive copying.
[0017]
Hereinafter, an example of a method for forming a non-copyable portion having a predetermined shape on the developer layer will be described with reference to FIG. The formation of the non-copyable portion having a predetermined shape on the developer layer C is performed on a pressure-sensitive copying lower sheet web W (hereinafter referred to as the web W) having a number of feed holes H provided in the marginal portion. Done. This web W is formed by spotting a developer layer C with a developer ink on the surface of a long base sheet F.
[0018]
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. The transfer path of the web W can be moved in the width direction and the transfer direction of the web W in order to form the variable information by changing the traveling direction of the laser light emitted from the carbon dioxide laser oscillator L having a variable mask and the laser beam emitted from the laser beam. 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.
[0019]
The tractor device T is connected to an encoder for detecting the feed amount of the web W, and the feed amount is detected 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 sets the developer at the timing corresponding to the feed amount, that is, at the laser irradiation position (at this position, the suction drum V for stabilizing the focus is installed). When the layer C arrives, based on the input shape data, a control signal is issued to the laser light oscillator L and the driving units of the polarizing mirrors M and M to control laser oscillation and driving.
[0020]
In this way, the developer that has been selectively irradiated with the laser is scraped off instantaneously, whereby a non-copyable portion D having a predetermined shape is applied to the developer layer C. Further, the shape of the non-copyable portion D is changed by another control signal based on another shape data input to the control unit.
[0021]
In the example of forming the non-copyable portion shown in FIG. 5, the formation of the non-copyable portion having a predetermined shape on the developer layer is performed by irradiating a laser beam through a variable mask and being incorporated in a plotter mechanism. Although the laser irradiation apparatus provided with the polarization mirror comprised rotatably is used, this invention is not limited to this, The various types of laser irradiation apparatuses used for laser image formation can be utilized.
[0022]
In addition, a suction drum V for stabilizing the focus is installed at the laser irradiation position so that the focal length of the laser beam does not blur when the laser beam is irradiated, and a tension is applied between the tractor device T and the two pairs of guide rolls R and R. However, other than this method, for example, a large diameter roll may be wound at a predetermined wrap angle, and a laser irradiation unit may be set at the wrap portion.
[0023]
【The invention's effect】
As described above, according to the pressure-sensitive copying lower sheet of the present invention and the pressure-sensitive copying form having the same, the developer is selectively scraped off by laser irradiation, and a non-copyable portion having a predetermined shape is formed on the developer layer. As a result, a white image composed of a fine pattern or the like is incorporated in the copy information, and it is difficult to tamper with it.
[Brief description of the drawings]
FIG. 1 is a plan view of a surface of a sheet under pressure-sensitive copying according to the present invention and an enlarged view of a portion of an accessory.
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 according to the present invention.
FIG. 4 is an enlarged explanatory view of copy information applied to a sheet under pressure-sensitive copying.
FIG. 5 is an explanatory diagram of a method for forming a non-copyable portion having a predetermined shape on the developer layer.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pressure-sensitive copying lower paper 2 Pressure-sensitive copying upper paper 4 Information entry part 5 Information copying part 6 Copying information 10 Pressure-sensitive copying form 11 Lower form 12 Upper form F Base sheet C Developer layer D Uncopyable part d White image W Paper web L under pressure-sensitive copy of conventional configuration Laser light oscillator M Polarizing mirror V Suction drum

Claims (3)

A paper under pressure-sensitive copying, in which a non-copyable portion having a predetermined shape is formed by selectively removing a developer by laser irradiation on a developer layer applied to the back surface of a base sheet. 2. The paper under pressure-sensitive copying according to claim 1, wherein the non-copyable portion has a fine pattern such as a micro character, a line, or a repeated pattern. 2. A sub-form formed of a pressure-sensitive copying lower sheet according to claim 1, wherein the information layer is provided at a predetermined portion of the developer layer surface having a non-copyable portion of a predetermined shape, and information corresponding to the information copying portion on the surface. A pressure-sensitive copying form that is separably bound to a higher-order form made of pressure-sensitive copying upper paper having an entry section.

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