JP2000015920A - Printed matter of optical discrimination mark and printing method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrain strike-through, and permit an optical discrimination mark to be read correctly by printing an optical discrimination mark on a ground printing part being transparent or the same color as paper printed on paper. SOLUTION: A paper 11 is controlled as a bankbook on the opacity of thickness, smoothness, or the like, and can be used with bankbook paper for on-line page increase. The ground printed part 12 is hard to be visualized and has a smoothness of printing adaptability, and it can be printed by the use of the medium ink of an oxidation polymerization type and UV curable type, or the like. The printed matter 10 is that after ground printing is given on a part where a page mark of the mark printed part 12 of paper 11 is printed by medium ink, mark printing 13 of the page mark is printed by India ink. Since the ground printed part 12 is formed by previously printing one layer of transparent medium ink, infiltration or strike-through of India ink can be restrained in the mark printed part 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001] The present invention relates to a printed matter of an optical identification mark and a printing method thereof.

[0002]

2. Description of the Related Art A passbook is a second online ATM (Automatic Teller M) in the mid-1950s.
Along with the introduction, page marks are printed in order to optically identify the detection of book pages, and the printing density and bookbinding accuracy have been required. This page mark is printed by PCS (Print Contrast Sig).
nal) value, and is usually printed with black ink (oxidative polymerization).

[0003]

The specification of the conventional page mark density is set for each user, but the design is
It differs for each user, and when a background pattern, a pattern, characters, etc. are printed around the page mark and the page mark overlaps with the page mark, as a synergistic effect, the back-transparent PCS value increases and the next page mark is read. Occasionally, a problem of misreading may occur.

[0004] Back transmission is also affected by errors in the opacity and thickness of the paper, irregularities on the surface of the paper, errors in print density, and the like.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a printed matter of an optical identification mark capable of accurately reading an optical identification mark by suppressing back transmission, and a printing method thereof.

[0006]

In order to solve the above-mentioned problems, the invention according to claim 1 comprises a sheet (11) and a base printing section (12) which is printed on the sheet and which is transparent or has the same color as the sheet.
And a mark printing section (13) having an optical identification mark printed on the base printing section.

According to a second aspect of the present invention, there is provided an underprinting step of printing on a sheet a transparent or the same color as the sheet, and a mark printing step of printing an optical identification mark after the underprinting step. It is a printing method of the optical identification mark including the above.

[0008]

Embodiments of the present invention will be described below in more detail with reference to the drawings. FIG.
FIG. 2 is a diagram showing an embodiment of a printed matter of an optical identification mark according to the present invention. The printed matter 10 is an example of a bankbook, and includes a sheet 11 constituting a page of the passbook and a sheet 1
1 achromatic underprinted part 1 printed with medium ink
2 and a mark printing unit 13 in which a page mark (optical identification mark) is printed on the base printing unit 12 with black ink.

The medium ink is, for example, an achromatic diluting ink in which only a varnish for the ink or only a white pigment is dispersed. By printing this medium ink, it is possible to prevent the black ink of the mark printing unit 13 from seeping into the paper 11. Since the medium ink is for suppressing the penetration of the black ink into the paper 11, it is preferable to select a transparent one or a color close to the color of the passbook paper.

The paper 11 is used for passbooks and is controlled in thickness opacity, smoothness, and the like. For example, MBR7B (special specialty paper), TA-AB (Oji Paper) Manufactured) can be used. The base printing portion 12 is hard to be visually recognized, has a printing-suitable smoothness, and has an oxidation polymerization type,
Printing can be performed by offset printing using a UV-curable medium ink, for example, NSEW medium (manufactured by The Inftech). If necessary, letterpress printing or silk printing may be used. Mark printing section 1
No. 3 forms a bar code at a predetermined concentration at a predetermined position, and is an oxidation polymerization type or UV curing type black ink, for example, NSM black WNo. 4 (manufactured by The Inftec) or the like, and can be printed by offset printing.

In the printed matter 10 of the present embodiment, a portion of the paper 11 where the page mark is to be printed in the mark printing section 12 is subjected to a base printing with a medium ink (base printing step), and thereafter the mark printing of the page mark is performed. Implement (mark printing process). At this time, in the base printing step, when printing the transparent ink, it is desirable to sufficiently wash the ink roller so that the ink does not become cloudy. Also, in the mark printing process, when printing the page mark with an oxidative polymerization type ink, because there is no soaking, because the drying is slow, take enough drying time to prevent set-off, immediately after printing,
It is desirable to leave it quietly without touching it.

According to the present embodiment, before printing the mark printing portion 13 of the page mark with black ink, the base printing portion 12 is formed by first printing a transparent medium ink first. The permeation or back penetration of the black ink in the printing unit 13 can be suppressed. Therefore, when the mark printing unit 13 is identified by the optical sensor, erroneous reading due to back transmission or the like can be avoided.

Various modifications and changes are possible without being limited to the embodiments described above, and these are also within the equivalent scope of the present invention. In this embodiment, a passbook has been described as an example, but various application forms, answer mark sheets, and the like can be applied to OCR forms and OMR forms using the front and back surfaces.

[0014]

Next, the present invention will be described in more detail with reference to specific examples. (Embodiment 1) In Embodiment 1, as the paper 11, a passbook paper for online additional pages, MBR7B (manufactured by specialty paper) and TA
-AB (manufactured by Oji Paper Co., Ltd.), and an oxidative polymerization type transparent medium ink (N
After the base printing portion 12 is formed by offset printing of SEW medium (manufactured by The Inftech), it is naturally dried, and as an ink for mark printing, an oxidation polymerization type black ink (NSM Black WNo. Mark printing unit 13 by offset printing
Was formed. Thereafter, the PCS value behind the page mark was measured using a reflectance / PCS value measuring device (manufactured by Macbeth) under the conditions of a sufficient backing method.

(Embodiment 2) In Embodiment 2, as the paper 11, an online page-compatible passbook paper, MBR7B (made by special paper) and TA-AB (made by Oji Paper) were used, respectively.
Oxidation polymerization type transparent medium ink (NSEW medium, manufactured by The Inftech) as an ink for base printing
After the base printing portion 12 is formed by offset printing, it is naturally dried, and as a mark printing ink,
UV curable black ink (UV Calton PW Black, The
The mark printing portion 13 was formed by offset printing of Inftec. Thereafter, the PCS value behind the page mark was measured using a reflectance / PCS value measuring device (manufactured by Macbeth) under the conditions of a sufficient backing method.

(Embodiment 3) In the embodiment 3, as the paper 11, an online page-compatible passbook paper, MBR7B (made by special paper) and TA-AB (made by Oji Paper) are used, respectively.
As a base printing ink, a UV curable transparent medium ink (UVBF Medium H, manufactured by The Inftech) is offset-printed to form a base printing section 12, and then dried by UV to form a mark printing ink. UV curing type black ink (UV Calton PW black,
The mark printing part 13 was formed by offset printing of (The Inftec). After that, reflectivity / PC
Using a S value measuring device (manufactured by Macbeth), the PCS value of the back side of the page mark was measured under conditions of a sufficient backing method.

(Comparative Example 1) In Comparative Example 1, as the paper, an online page-compatible passbook paper, MBR7B (made by special papermaking)
And TA-AB (manufactured by Oji Paper Co., Ltd.), and perform offset printing of an oxidation polymerization type black ink (NSM black WNo.4, manufactured by The Inftech) as an ink for direct mark printing without performing base printing. Thus, a mark printing portion was formed. Thereafter, the PCS value behind the page mark was measured using a reflectance / PCS value measuring device (manufactured by Macbeth) under the conditions of a sufficient backing method.

(Comparative Example 2) In Comparative Example 2, as the paper, an online page-compatible passbook paper, MBR7B (made by special papermaking)
Offset printing of UV-curable black ink (UV Calton PW Ink, manufactured by The Inftech) as an ink for direct mark printing without using base printing and TA-AB (manufactured by Oji Paper). Thus, a mark printing portion was formed. Thereafter, the PCS value behind the page mark was measured using a reflectance / PCS value measuring device (manufactured by Macbeth) under the conditions of a sufficient backing method.

[0019]

[Table 1]

Table 1 shows the measurement results of Examples 1 to 3 and Comparative Examples 1 and 2. The numerical value in the leftmost column of Table 1 is
The PCS value of the front page mark is shown, and each column is a measured value of the PCS value of the page mark and the back transmission under each condition. As a result, those having the underprinting section 12 (Examples 1 to 3) were compared with those without the underlying printing section 12 (Comparative Examples 1 and 2).
It can be seen that the page mark PCS value has decreased by 0.01 to 0.02. This is a back transparent PC
This indicates that the S value is suppressed. In addition, in the case where the oxidation polymerization type ink was used as the base printing ink and the UV curing type ink was used as the page mark ink (Example 2), better results were obtained than the other inks. The reason for this is that in the case of the UV curing type, there is a property of curing and drying without permeating (quick drying property), which indicates that permeation can be further prevented.

As described above, before printing the black ink of the page mark, printing was first performed with a transparent medium ink under the black ink, so that the penetration of the black ink could be suppressed and the back penetration could be reduced. .

In Examples 1 to 3 and Comparative Examples 1 and 2, measurements were made for the case where there was an overlap with the copy-forgery-inhibited pattern (PCS value of 0.05 to 0.07). Table 2 shows the measurement results as Examples 4 to 6 and Comparative Examples 3 and 4 in the case where there was no sample, and when the test was carried out under exactly the same conditions.

[0023]

[Table 2]

In Examples 4 to 6 and Comparative Examples 3 and 4, as compared with the above, there is no overlap with the tint block, and
It can be seen that the value also becomes lower.

[0025]

As described above in detail, according to the present invention, before printing the mark printing section, the base printing is performed with a medium ink or the like, so that the ink of the mark printing does not permeate the paper. Thus, there is an effect that back penetration can be prevented.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of a printed matter of an optical identification mark according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Printed matter 11 Paper 12 Base printing part 13 Mark printing part

Claims (2)

[Claims] 1. An optical identification mark comprising: a sheet; a transparent printing section printed on the sheet or a base printing section of the same color as the sheet; and a mark printing section having an optical identification mark printed on the base printing section. Printed matter. 2. An optical identification mark including a base printing step of printing a transparent base or the same color as the base paper on a sheet, and a mark printing step of printing an optical identification mark after the base printing step is performed. Printing method.