JPH09300869A - Hard-reproducible printed matter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printed matter, a reproduced printed matter of which is easily judged even by an amateur as a reproduction when securities are reproduced with a reproduction machine or the like. SOLUTION: In this printer matter, in order to be effectively used a micropattern, the sizes of patterns such as a character, a logotype, a figure and the like are changed continuously or stepwise from their sizes 2, which can be made out as an image at first sight, to their sizes 3 (micropatterns), which can not be reproduced through optical reproduction, so as to allow to easily recognize the change of sizes by viewing. When this printed matter is reproduced with a reproduction machine, the micropattern portion defaces or blurs and the micropattern portion 3b of a reproduction is judged so clearly to be different from its surrounding portion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed matter on which a pattern capable of preventing misuse such as counterfeiting by copying securities and the like is printed.

[0002]

2. Description of the Related Art Due to the technical progress of color copying machines, such as securities, etc., which are optically duplicated, securities and the like have been duplicated, and the problem of unauthorized use of these duplicates has arisen. As a means for solving this problem, there is known a printed matter in which small characters, logos, marks and the like (hereinafter referred to as micropatterns) which cannot be copied by a copying machine are arranged in the same size.

The conventional use of the micro pattern looks like underlines 14, straight ruled lines 15 and corrugated ruled lines 16 in the printed matter 1 of FIG. 6, but when this part is enlarged and magnified, the micro pattern is seen. , For example BANKBA
It can be seen that, like NKBANKBANKBANK, the characters of BANK are continuously arranged in the same size. At first glance, the micropattern looks like a line, but is composed of a pattern that cannot be read visually.

When the micropattern is copied by using a copying machine, when the image line forming the pattern is thick or the image line density is high, there is blurring, and conversely when the image line forming the pattern is thin. , It has not been reproduced as an exact pattern due to blurring. Micro pattern of copied printed matter
The mechanism is such that if it is magnified and examined, it can be seen that it is a copied printed matter.

[0005]

Those who are accustomed to the printed matter on which this micro pattern is printed and those who know where the micro pattern is printed should be careful and enlarge the micro pattern portion. Or you can see what is being copied by comparing it with the real thing. However, the printed matter in which the micro pattern is used is a printed matter reproduced by a copying machine,
Whether the micropattern is squiggly, linear, or faint, people who don't know the real thing or who see it for the first time find it natural and cannot see it as a duplicate.

The present invention has been made in view of the above-mentioned problems, and its purpose is to be duplicated even for those who do not know the genuine article, those who see it for the first time, and those who do not know where the micropattern is printed. It is to provide a printed matter that makes it easy to recognize that the printed matter is a duplicate. Another object of the present invention is to provide a printed matter that is difficult to copy and has an effect of preventing forgery because an amateur can easily recognize that the copy has been made. Therefore, it is an effective method for preventing forgery of stock certificates, checks, gift certificates, cash vouchers, and the like.

[0007]

SUMMARY OF THE INVENTION The present invention provides continuous or stepwise changes from visually readable size of images to small sizes that cannot be reproduced by optical reproduction. It is a difficult-to-reproduce printed matter on which patterns of characters, logos, marks, figures, etc. are printed so that size changes can be visually recognized.

Further, the present invention is the above-mentioned invention, which is a printed matter which is difficult to copy, in which two or more kinds of images such as the characters, logos, marks and figures are printed in combination.

Further, the present invention is the above-mentioned invention, which is a difficult-to-reproduce printed matter in which the images of the characters, logos, marks, figures, etc. are printed in combination of one or more colors. When the above printed matter is duplicated, it can be easily recognized as a duplicate.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION In order to effectively use a micro pattern, a pattern of characters, logos, marks, figures, etc. can be seen at a glance, and from a size that is legible as an image, a small size that cannot be reproduced by optical reproduction The size (micro pattern) is changed continuously or stepwise so that the size change can be easily visually recognized. At first glance, the size readable as an image generally refers to a size of about 4th grade or higher, and a small size that cannot be reproduced by optical duplication is the thickness of the lines forming the pattern. , But generally refers to a size of about grade 1 or less, though it varies depending on the density of the image lines. This micro pattern is printed on the entire surface of the printed matter or partially on the securities such as stock certificates, checks, gift certificates, and cash certificates. When a printed matter on which this micro pattern is printed is reproduced by a copying machine, at first glance the part of the micro pattern may be blurred or scratched,
If it disappears, it can be seen that the part of the micro pattern is distinctly different from this peripheral part, so people who do not know the real thing, people who see it for the first time, people who do not know where the micro pattern is printed It can be recognized that it is a duplicate. The character size series described here is a unit indicating the size of characters used in phototypesetting, and the first class has a character size of 0.25 mm. The character size series will be described in detail below based on examples.

[0011]

【Example】

Example 1 FIG. 1A is a schematic external view of Example 1. The pattern of the large-sized portion 2 can be clearly read visually. For example, when "BANK" is used as a pattern, it is printed with a character size of about 5th grade, and the part of the micro pattern 3 is not visually readable and has a character size of about 1st grade or less that cannot be reproduced by a copying machine. It is printed. The character size is printed such that the character size decreases gradually or continuously from the large size portion 2 to the micropattern 3 portion.

When this printed matter is reproduced by a copying machine, FIG.
As shown in (B), the vicinity of the large size portion 2a is clearly copied. However, it becomes difficult to reproduce as it approaches the portion of the micro pattern 3b, and the vicinity of the portion of the micro pattern 3b is blurred or blurred, and cannot be reproduced. If the copier is set so that the density of copying becomes dark, there will be blurring, and conversely, if the copier is set so that the density of copying becomes thin, it will be blurred. In this way, continuous patterns are unnaturally shaken or blurred, so even people who do not know the real thing, people who see it for the first time, and people who do not know where the micro pattern is printed are easy. You can identify the duplicate.

[Embodiment 2] FIG. 2 is an example in which two types of patterns "BANK" and "bank" are combined and the character size is gradually reduced in the same manner as in the first embodiment.

[Embodiment 3] FIG. 3 is a combination of two types of patterns "BANK" and "bank", in which "BANK" is red and "Bank" is green, and the colors are alternately arranged. It is an example in which the character size is gradually reduced. By increasing the reproducibility of one pattern by changing the color of the pattern, the reproducibility of the other pattern is sacrificed, making it more difficult to reproduce both patterns.

[Embodiment 4] FIG. 4 shows an example in which two types of pattern "BANK" are red in the left and right directions, and "Bank" is in the green up and down directions, and the character size is gradually reduced in the same manner as in the first embodiment. is there. Changing the color is to obtain the same effect as in the third embodiment.

[Embodiment 5] FIG. 5 shows an example in which a micropattern 13 is printed at the center and a large-sized pattern 12 is printed toward the outside. If you copy this printed material with a copier, it will be blurred or blurred, and the part that is not reproduced will be large, even for people who do not know the real thing, those who see it for the first time, and those who do not know where the micro pattern is printed. This makes it very easy to identify.

The present invention is not limited to the above embodiment. The printed pattern is not limited to letters, but logos and marks.
The size of the pattern is not limited to about the fifth grade to the first grade. It may be from a larger size to a smaller size. It is natural that the size of the micro pattern varies depending on the thickness of the image lines forming the pattern, the density of the image lines, etc., and may be changed at any time in consideration of the reproduction performance of the copying machine. Further, not only the size but also the thickness may be changed. The size and thickness may be changed at the same time. Further, the patterns are not limited to one kind and two kinds, and more kinds may be combined. Also, the color of the pattern is not limited to one color or two colors. For example, B is red, A is yellow, N is green, and K is blue. You may print with. The pattern may be arranged linearly, in a square shape, in a rectangular shape, in a circular shape, in an elliptical shape, or in accordance with the design of the printed matter, and a micro pattern may be freely used. Further, in the above-mentioned embodiment, a copying machine has been described as an example of the optical duplication method, but it is also effective means for photolithography, electronic platemaking, and duplication prevention by camera photographing.

[0018]

When the printed matter of the present invention is duplicated by a copying machine, it is easy for a person who does not know the genuine article, a person who sees it for the first time, and a person who does not know in which part the micro pattern is printed, to make a duplicate. You can see through. Further, since the forgery prevention method is based on the printing of the micro pattern, the forgery prevention cost can be reduced.

[Brief description of drawings]

FIG. 1A is a schematic external view illustrating a first embodiment of the present invention. FIG. 3B is a schematic external view illustrating a printed matter obtained by copying FIG.

FIG. 2 is a schematic external view illustrating a second embodiment in which two types of patterns according to the present invention are combined.

FIG. 3 is a schematic external view illustrating a third embodiment in which two types of patterns and two types of colors of the present invention are combined.

FIG. 4 is a schematic external view illustrating Example 4 in which two types of patterns of the present invention and two types of colors are combined to design a cross shape.

FIG. 5 is a schematic external view for explaining an embodiment 5 in which the peripheral portion of the present invention is a large size and the central portion is a micro pattern.

FIG. 6 is a schematic external view when visually observing a printed matter on which a conventional micropattern of the same size is printed.

[Explanation of symbols]

1 ... Printed matter 2, 12 ... Large size pattern part 3, 13
... micro pattern part 2a ... copied large size pattern part 3b ... copied micro pattern part 4, 8 ... large size pattern part printed in red 5, 1
0 ... Large size pattern part printed in green 6,9 ... Micro pattern part printed in red 7,11 ... Micro pattern part printed in green 14 ... Underline composed of a set of micro patterns 15 ... Micro Ruled line composed of a set of patterns 16 ... Wavy ruled line composed of a set of micro patterns

Claims (3)

[Claims] 1. A visually or visually recognizable size is changed continuously or stepwise from a size readable as an image to a small size which cannot be reproduced by optical duplication so that the size change can be visually recognized. Difficult-to-reproduce printed materials with patterns such as letters, logos, marks, and figures printed 2. The printed matter which is difficult to copy according to claim 1, wherein two or more kinds of images of the characters, logos, marks, figures and the like are printed in combination. 3. The image of the character, logo, mark, figure or the like is printed by combining one or more colors.
Alternatively, the printed matter that is difficult to copy according to claim 2.