JPH0890902A - Carbonless form - Google Patents

Abstract

(57) [Summary] [Purpose] Providing a carbonless form that allows each page of a copy file made of middle-sized paper to be free from dirt even if it is rubbed or pressured, memos and additional entries can be freely made, and which has an anti-counterfeit effect. . [Structure] In a carbonless form 6 which is pressure-sensitively colored by a capsule coloring agent layer A formed on the back surface of a form substrate P and a developer layer B formed on the surface of the substrate P, a capsule coloring agent layer A first coloring system which develops by A and the developer layer B, and a second coloring system which develops by the capsule developer layer A ′ and the developer layer B ′.
The coloring systems of No. 1 and No. 2 are not overlapped even if the capsule coloring agent layer A and the developer layer B'and the capsule coloring agent layer A'and the developer layer B face each other. A carbonless form that has a relationship of developing a hue different from that of the system.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carbonless form having a function of preventing stains or forgery.

[0002]

2. Description of the Related Art As shown in FIG. 1, a conventional carbon-free form has a capsule coloring on the front and the back between a top paper having a capsule coloring agent layer on the back and a bottom paper having a developer layer on the front. It is generally used that a set of middle papers each having an agent layer and a developer layer are provided in an appropriate number. It is used for a wide range of purposes such as shipping goods and receiving money, and it is common to use one set per case. The second and subsequent sheets, on which the information printed or entered on the top sheet is pressure-sensitively copied, are withdrawn and left as a copy in a predetermined related department. When it is a middle sheet, the same sheet is stored in a file state, for example, as shown in FIG.

[0003]

In the state in which the copies of each copy of the same sheet are filed, the positional relationship between the capsule color developer layer and the developer layer is the same as the positional relationship in the carbonless form before use. Yes, the same coloring system is retained after the file. Therefore, in this file, if the layers that face each other rub against each other, or if you write down a memo on a specific form, the same color pressure-sensitive coloring will occur in the form copy below it, and the description becomes unreadable or confusing. Such problems may occur. Furthermore, since each sheet has the same color, there is a problem that the copy slip is easily forged when used for receiving money. The present invention has been made in view of the above-mentioned problems, and it is difficult for dirt to occur in a copy file of middle paper, or even if it occurs, the original information can be clearly identified, and the number in the amount column etc. The purpose is to provide a carbonless form that makes counterfeiting difficult.

[0004]

The present invention, which has been made to solve the above-mentioned problems, comprises an encapsulating color developer layer formed on the back surface of a form base material and a developer layer formed on the front surface of the base material. In a carbon-free form that develops a pressure-sensitive color, a first color development system that develops by a capsule color developer layer A and a developer layer B and a second color development system by a capsule color developer layer A ′ and a developer layer B ′.
Of the color developing systems are alternately stacked, and it is difficult to develop color even when the capsule color developing agent layer A and the developer layer B ′ and the capsule color developing agent layer A ′ and the color developing agent layer B face each other, or a color different from the above described color development is performed. The point is that there is a relationship.

[0005]

According to the present invention, even if the same sheets of middle paper stacked as a backup file are rubbed against each other or pressure is applied, they are not soiled, and even if a memo is written, they are not copied to the bottom. . Even if it gets dirty or copied,
Due to the difference in color, the legitimate characters, numbers, etc. can be correctly read, and the numbers in the amount column can be prevented from being forged.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings. FIG. 1A is a schematic cross-sectional view of a carbonless form 4 which has been conventionally used. An appropriate number of middle papers (three in FIG. 1) are provided between the top paper and the bottom paper, and the capsule color developer layer A and the developer layer B are provided on one or both sides of the form substrate P. An A / B color development system is formed between the form base materials P. That is, the conventional carbonless form 4 is composed of one type of color-developing system, and the writing pressure or the printing pressure applied on the top paper 1 is transmitted to the middle paper 2 and the bottom paper 3 to cause pressure-sensitive color development. Single color copying is possible. Carbonless forms are for contracts, logistics management, etc. 1
One set is issued for each case, and after copying, each sheet of the post-issuance carbonless form 4 is extracted and filed in a predetermined order for the relevant department or person. There is no problem with the top paper and the bottom paper, but if the middle paper is taken out and filed, as shown in FIG. 1B, the file 5 has the capsule color developer layer A and the developer layer B as shown in FIG. ), And the A / B color development system remains. Therefore, the file 5 is easily soiled by rubbing or the like, and when a memo is written on any of the forms, the same memo is written on the form below it, and confusion easily occurs.

FIG. 2 shows a carbonless form 6 according to the present invention.
It is a schematic cross section which shows the structure of FIG. FIG. 2 shows another type of coloring system A '/ B' in addition to the conventional coloring system A / B.
The color developing system A / B and the second color developing system A ′ / B ′ are alternately superposed. The order may be either first, and the changed order is shown in the carbonless form 6 of FIG. 2A and the carbonless form 7 of FIG. 2B. As described above, any of the middle papers of the carbonless forms 6 and 7 in which the two types of coloring systems are alternately set may be extracted. For example, when the second sheet is extracted and filed, FIG.
The files 8 and 9 having the layer arrangement as shown in (b) are obtained. In this file, unlike the conventional file 5 shown in FIG. 1 (b), two types of color-developing systems intersect, the capsule color-developing layer A ′ and the developer layer B face each other, and the capsule color-developing layer A
And the developer layer B ′ face each other. However, since color is less likely to occur between A'and B and A and B ', FIG.
The files 8 and 9 in (a) and (b) are less likely to become dirty, and memos and additional notes can be freely written on a specific page. The hues of the two types of coloring systems in the carbonless forms 6 and 7 of the present invention may be the same or different. Also, depending on the combination of A'and B and A and B ',
You may make it develop in another hue easily distinguishable from A / B and A '/ B' color development system. In this case,
Even if unnecessary copying such as dirt or memo writing occurs in the file indicated by, since the color is different from the first copying, a big confusion can be avoided.

FIG. 4 is a schematic sectional view of a carbonless form 10 having another layer structure of the present invention, showing a variation of the present invention. In this case, unlike the case of the carbonless forms 6 and 7 shown in FIG. 2, the first middle paper,
There is a stain prevention effect only on the second sheet. If stain prevention measures only need to be applied to two sheets of middle paper,
In this way, the second color development system may be provided only between the two specific middle papers.

The carbonless form according to the present invention, which has two coloring systems, also exhibits an anti-counterfeiting effect. For example, three carbonless forms used for collecting premiums for non-life insurance, life insurance, etc., where the top paper is for insurance company submission, the middle paper is the receipt of the insured, and the bottom paper is the deposit receipt. In the carbonless form of the structure, if it is a conventional carbonless form that has only one type of coloring system, the collector collects the middle paper and fills in the correct amount received and hands it to the payer, and later the top paper It is possible to carry out fraudulent acts, such as stacking bottom papers, filling in the false amount, copying it, and taking the difference. However, as shown in FIG. 5, in a carbonless form having two kinds of coloring systems according to the present invention, even if the top paper and the bottom paper are made to face each other and an attempt is made to fill in and copy, no color is produced and it cannot be forged. It is very easy to identify that it is a forgery because it develops in the hue of.

The paper used for the carbonless form according to the present invention is 40 to 50 g / m ² for the top paper and the middle paper and 70 to 80 for the bottom paper, as in the conventional carbonless forms.
g / m ² and relatively thin high-quality paper can be used.

The capsule color-developing layer contains a pressure-sensitive dye (color former) in an alkylnaphthalene in a microcapsule.
Encapsulated in a capsule oil such as diallyl alkane and encapsulated in 1 to 4 μm grain type microcapsules, together with pressure buffer particles such as starch and hardened gelatin powder, a binder such as latex and polyvinyl alcohol, and base paper It is the one tied up above. The formation of the capsule coloring agent layer is generally performed on the entire surface of the substrate, but partial coating by a printing method may be performed.

The color developer layer contains a metal salt of an alkylphenol resin, a metal salt of a salicylic acid derivative, and the like, and these resins dissolve in capsule oil which is eluted by the pressure rupture of the capsule to develop a color. The developer coating can be partially coated on the entire surface of the substrate or on a predetermined portion. further,
A desensitized coating portion may be provided on the developer layer obtained by coating the entire surface so as not to develop color by coating with polyvinyl alcohol or the like.

Fluoran compounds and phthalide compounds, which are rich in coloring hue, are mainly used as color formers. Blue violet includes crystal violet lactone, benzoyl leuco methylene blue, pyridiable blue, etc. Pink is green, dibenzyl green is green, and black is OD.
B, Black-15 and the like can be used, but it is also possible to blend these appropriately and use them by adjusting the hue to a hue not seen in the market. Rather, it is more effective when the above-mentioned purpose is to prevent forgery.

[0014]

According to the carbonless form according to the present invention, when the middle papers are removed and overlapped to form a file, the file is free from stains, and the filed form can be freely written as a memo. Even if stains occur or unnecessary copies are made, the hues of the original copy are different and there is no confusion. Furthermore, it exerts an anti-counterfeiting effect.

[Brief description of drawings]

[FIG. 1] (a) Explanatory diagram of a conventional carbonless form (b) Explanatory diagram of a copy file using middle paper

FIG. 2A is an explanatory view of a carbonless form having two sets of coloring systems. FIG. 2B is an explanatory view of a carbonless form having two sets of coloring systems.

3A is an explanatory diagram of a copy file in the middle paper of FIG. 2A, and FIG. 3B is an explanatory diagram of a copy file in the middle paper of FIG. 2B.

FIG. 4 is an explanatory view of a carbonless form having two sets of color forming systems having different configurations.

FIG. 5 is an explanatory diagram of a forgery prevention effect.

[Explanation of symbols]

 1 Top paper 2 Middle paper 3 Bottom paper 4 Conventional non-carbon form 5 Copy file with conventional middle paper 6 Carbon-free form with 2 sets of coloring system 7 Carbon-free form with 2 sets of coloring system 8 Copy with middle paper File 9 Copy file with middle paper 10 Application example of carbonless form according to the present invention A, A'Capsule color developer layer B, B'Developer layer A / B First color development system A '/ B' Second color development system A / B 'Coloring system that does not develop color or develops in another hue A' / B Coloring system that does not develop color or develops in another hue P

Claims (3)

[Claims] 1. A carbon-free form for forming a pressure-sensitive color by a capsule color former layer formed on the back surface of a form base material and a color developer layer formed on the front surface of the base material. A carbonless form characterized in that a first color development system that develops color by a colorant layer B, a second color development system that develops by a capsule colorant layer A ′ and a developer layer B ′ are alternately stacked. 2. In the capsule color-developing layer and the color-developing layer, does the color develop even if the capsule color-developing layer A and the color-developing layer B ′ and the capsule color-developing layer A ′ and the color-developing layer B face each other? Alternatively, the carbonless form according to claim 1, which has a relationship in which it is difficult to develop color. 3. In the capsule color developer layer and the developer layer, even if the capsule color developer layer A and the developer layer B ′ and the capsule color developer layer A ′ and the developer layer B face each other, 2. The carbonless form according to claim 1, which has a relationship of developing a hue different from that of the first color development system and the second color development system.