KR101470619B1 - Print media Applied to the security element and method. - Google Patents

Abstract

The present invention relates to a method of manufacturing a latent image source for anti-forgery features. More particularly, the present invention relates to a method of manufacturing a latent image source for anti-forgery features which easily distinguishes a printout from a copy with eyes by providing an anti-forgery pattern for preventing forgery and a latent image source and by applying a figure disappearing in a duplication process and a figure reproduced by a duplication process.

Description

Technical Field [0001] The present invention relates to a method for manufacturing a copying counterfeit prevention apparatus,

[0001] The present invention relates to a method of manufacturing a hypodermic face for preventing copy-forgery, and more particularly, to provide a copy-forgery-inhibited pattern and a latent-image-specific pattern to prevent copy-forgery, The present invention relates to a method of manufacturing a hypodermic material for preventing copying and forgery, which makes it possible to easily distinguish a printed matter and a copy from the naked eye.

Conventionally, there has been proposed a copying-forgery-inhibiting paper which develops a latent image when copying a large dot, a small dot, a bold line and a halftone dot in accordance with an increase in the copy resolution of the copying machine.

For example, Japanese Patent Application Laid-Open No. 58-47708 discloses a technique in which a character latent image such as "VOID" is printed on a paper surface with a large halftone dot and a background surface other than a character latent image is printed with a small halftone dot, The character latent image, which is a large halftone dot, is reproduced and developed, but since the background surface, which is a small halftone dot, is not reproduced, a difference in hue between the colors is generated, and the character latent image can be visually confirmed.

As the resolution of the high resolution photocopier has been increasing, the current main / sub scanning line has been changed from 600 dpi to 1,200 dpi and the image output method has been developed from the line conversion method to the dot conversion method, Since the number of cases of tampering is increasing, it is necessary to develop a new anti-counterfeiting technology that can cope with this.

Japanese Patent Application Laid-Open No. 58-47708 (Feb. 10, 2009) Korean Patent Publication No. 10-2003-0070439 (Aug. 30, 2003)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior arts, and it is an object of the present invention to provide a high resolution copying machine capable of improving the resolving power of a high resolution copying machine and developing an image output method from a line conversion method to a halftone conversion method, A copy-forgery-inhibiting pattern and a latent-image non-marking method are provided so as to be able to apply the figure disappearing during copying and the figure reproduced in copying.

In order to achieve the object of the present invention,

According to an embodiment of the present invention,

The annular halftone dots 35b-1 are arranged in the background pattern represented by the printed matter, the density of the screen tone is inserted into the 15% posi type,

After inserting the screen line 175 (35a-1) of the halftone dot and the screen tone concentration into the 14% posi type, the screen line 200-210 line (35c-1) And the halftone dots are arranged at an angle of 105 degrees with respect to the latent-image reference mark, and the background patterns are arranged at an angle of 75 degrees. Thus, the object of the present invention is solved.

According to another aspect of the present invention, there is provided a method of manufacturing a hypodermic face for preventing copying and forgery,

As the resolving power of the high resolution copying machine is improved and the image output method is developed from the line conversion method to the halftone conversion method, the copy forgery prevention pattern and the latent image specific method are provided to prevent the copy forgery, The reproduced figure can be applied.

Therefore, it can contribute to enhancement of national competitiveness by blocking illegal copy such as security documents and various identification cards, and contributing greatly to the fostering of local industry by increasing the employment creation effect due to the production of paper to which the present invention is applied, It is possible to secure a safe transaction through the effect and provide a sense of trust to the user who uses the paper of the present invention.

FIG. 1 is a diagram schematically illustrating a phenomenon appearing during output according to a gradation representation method of the radiating apparatus according to the present invention.
2 is a schematic view showing 1,200 dpi resolution main scanning line and sub scanning line of a high resolution copying machine according to the present invention.
FIG. 3 is a schematic diagram showing a figure of 100 annular halftone dots applied to a latent image mark in the production of a circle according to the present invention, and a reproduced state in a printed matter.
FIG. 4 is a diagram schematically showing a figure of 100 lines of a rectangular figure applied to a latent-image reference and a state of being reproduced in a printed matter according to another embodiment of the present invention.
FIG. 5 is a state diagram schematically showing a halftone dot 210 used in manufacturing a background pattern according to the present invention and a state reproduced in a printed matter.
Fig. 6 is a schematic diagram showing an enlarged view of a state in which a single-stage latent-image non-mark "VOID" is arranged in a computer graphic according to an embodiment of the present invention.
FIG. 7 is a schematic diagram showing an enlarged view of a state in which a two-stage latent image special table called " VOID " is arranged in a computer graphic according to an embodiment of the present invention.
FIG. 8 is a schematic view showing an example in which an irregular rectangle of FIG. 4 is inserted into the latent image using the one-stage latent-image special table of FIG. 6 and a dot of FIG. 5 is inserted into the background.
FIG. 9 shows another embodiment according to the present invention in which the annular figure (100 line) and the halftone dot (175 line) of FIG. 3 are inserted into the latent image using the two-stage latent image special table of FIG. 7, As shown in Fig.
Fig. 10 shows another embodiment according to the present invention in which the halftone dots in Fig. 5 used in the background are inserted in such a manner that the angle of the "VOID" latent image table is maintained at 105 deg. Type latent image is inserted.
FIG. 11 is a state diagram showing a case of copying FIG. 8 as a printed matter according to the present invention.
12 is a schematic view schematically showing a portable counterfeit bill detection tool.
FIG. 13 is a state diagram in which latent-phase special marks are displayed when the portable counterfeit-money detecting tool of FIG. 12 is placed on the printed matter portion of FIG. 10 according to the present invention, and not shown in the copy.
FIG. 14 is a graph showing the results of manufacturing and testing the curves reproduced at the time of copying and the prime and density at the time of copying, respectively.
15 is a configuration diagram of an annular halftone dot figure according to an embodiment of the present invention.
16 is a configuration diagram of a rectangular figure according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a state diagram schematically showing a phenomenon appearing in output according to a gray scale representation method of a radiating apparatus according to the present invention.

As shown in Fig. 1, when copying the original figure of the printed characters 5a onto the base sheet 5, it appears different depending on the image output method of the copying machine model. In the case of the image output fatting method, it is output in the same form as the print character of the reference numeral 5b. In the case of the image output line conversion method, it is output in the same form as the print character of 5c. And is outputted in the same form as the print character of 5d.

That is, the phenomenon appearing in the output of the type of the copying machine is different.

2 is a schematic view showing 1,200 dpi resolution main scanning line and sub scanning line of a high resolution copying machine according to the present invention.

A high resolution copying machine is divided into an optical system and a developing process system by converting the reflected light of the original into an electric signal by a CCD sensor and then performing various image processing and forming an image by irradiating the photosensitive body with a laser.

In order to develop a latent image for copy-forgery prevention, an electric signal converted from an image conversion device to a laser scanning signal in an optical system drives a laser. The resolution of a conventional copying machine is 600 dpi in a main scanning direction with a CCD array, Direction is scanned with a radiation density of 1200 dpi.

However, in the recently developed high resolution copying machine, the main and sub scanning lines are improved to 1,200 dpi as shown in 7c-1, 7c-2, 7d-1 and 7d-2 in FIG.

As shown in FIG. 2, since pixels of 7a-1 and 7a-2 are apart from each other, 600dpi, 7b-1 and 7b-2 are densely attached to pixels of 1,200dpi 2, 7d-1 and 7d-2 in FIG. 2, the pixels of the main and sub scanning lines are closely attached to each other, Is reproduced in the same manner as the original.

FIG. 3 is a schematic diagram showing a figure of 100 annular halftone dots applied to a latent image mark in the production of a circle according to the present invention, and a reproduced state in a printed matter.

1, 10b-1, 10c-1, 10a-1, 10b-1, and 10c-1 are formed on the base sheet 5 when the original sheet is manufactured according to the present invention. The annular halftone dot is filled with the ring by the dot gain phenomenon, and the area is printed in a wide regular pattern.

FIG. 4 is a diagram schematically showing a figure of a 100-line rectangular figure applied to a latent-image reference and a state of being reproduced in a printed matter according to another embodiment of the present invention.

In the production of the circular sheet according to the present invention, the base sheets 5 are formed with the 100-line shapes 15a, 15b and 15c of the rectangular shape, and when they are reproduced as the printed material, the rectangular shapes 15a-1, 15b-1 and 15c- The figure is printed in a regular pattern with a large area by the dot gain phenomenon.

FIG. 5 is a state diagram schematically showing a halftone dot 210 used in manufacturing a background pattern according to the present invention and a state reproduced in a printed matter.

That is, when the background pattern 210 is formed in the base sheet 5 at the time of manufacturing the background pattern, and the dot pattern 30a is reproduced as a printed matter, the area is broadened by the dot gain phenomenon like the dot pattern 30a- It is printed in a pattern.

6, in the case where the state where the one-stage latent-image not-shown with the word "VOID" is enlarged in the computer graphic, the one-stage latent-image notation 35a is present. In Fig. 7, Quot; VOID "is arranged, the first-stage latent-image non-standard table 35a exists and the second-stage latent-image non-standard table 35b exists.

8, for example, the irregular rectangle 35a-1 of FIG. 4 is inserted into the latent image using the one-stage latent image special table of FIG. 6, and the halftone dot 35c-1 of FIG. 5 is inserted into the background .

At this time, when the printed matter of FIG. 8 is copied, it is as shown in FIG.

9 shows another embodiment of the present invention. In the first embodiment of the latent image, the 100-line annular pattern 35b-1 shown in FIG. 3 is used and the 175th line 35a-1 is used for the latent image second stage And the dot 210 line 35c-1 in FIG. 5 was inserted in the background.

Fig. 10 shows another embodiment according to the present invention in which the halftone dots in Fig. 5 used in the background are inserted in such a manner that the angle of the "VOID" latent image table is maintained at 105 deg. Type latent image is inserted.

That is, the latent image non-marks 50a and 50b are angularly transformed into the halftone dot 210, thereby inserting the filter-type latent image.

12 is a schematic view schematically showing a portable counterfeit paper money detection tool developed by the inventor of the present invention (Patent Registration No. 10-0651245), FIG. 13 is a schematic view A filter type latent non-mark appears when a portable counterfeit detection tool is placed, and it is not displayed in a copy.

That is, the filter type latent image reference mark 40a is displayed on the portion of the portable counterfeit paper money detecting tool 50a and 50b.

Commercial prints of prints should be color-coded using a screen of 65 to 75 lines for newspapers, 100 to 133 lines for magazines, and 175 to 200 lines for paintings.

Therefore, the resolving power limit of the printed matter by the naked eye can usually distinguish a halftone dot of 0.25 mm.

The 65 lines of the newspaper can be identified by the naked eye, but it is difficult to visually identify more than 133 lines such as magazines.

In order to investigate the radiation characteristics according to the size of the halftone dots, a black test pattern consisting of 65, 85, 133, 175, and 200 line halftone screens and having tone areas of 5, 10, 15 and 20% The reproducibility was measured by reflection densitometer. The result showed that the fringing effect was more than 133 lines, the film density was less than 13% and the reproducibility was better than 120 lines.

In addition, by applying the effect of copying the halftone dots in a high resolution copying machine, it is possible to reproduce and reproduce the aisle and the density of the circularity reproduced in the copying by using the annular halftone dot, rectangle, square, Result As shown in Fig. 14, the copy reproduction effect of the figure was obtained.

In recent years, printing technology has been developed with the development of computer peripheral technology, and printing plates are manufactured by directly exposing the printing plate to the printing plate without manufacturing the original plate.

Therefore, although the latent-image pattern manufacturing technique for preventing copy-forgery is printed in a monolithic manner, the latent image pattern and the background pattern can not be visually recognized in the printed matter, but when the image is copied by the copying machine, the latent image pattern can be visually recognized .

When the latent image pattern for preventing copy forgery is formed with a dot pattern of the same area and a background pattern as a button shape with a screen density of 2 to 3% difference, the pattern of the latent image pattern and the background pattern are different, There is a difference in the degree of freedom.

In addition, it is also possible to dispose a uniform dot pattern of either the latent image pattern or the background pattern in a dense state, and select one of a ring shape, a rectangle, a square and an equilateral triangle, The density of the latent image pattern and the background pattern become the same by the dot gain phenomenon during printing and the latent image non-mark is not seen in the printed matter.
The posi type described in the present invention generally refers to a screen tone of an image in which an annular halftone dot, a halftone dot, and a rectangular figure are displayed when a computer graphic operation is performed.
On the other hand, the screen player described in the present invention is generally the number of lines or points within a width of 1 inch or 1 of the screen, and 150 lines (dot) / inch when there are 150 lines or dots within 1 inch It is also referred to as the 150 line.

Example 1

In the first step, as shown in FIG. 15, a ring-shaped halftone dot is produced with an outer diameter of 0.12 mm, an inner diameter of 0.05 mm, and an outer diameter and an inner diameter of 0.07 mm, as shown in FIG. 15, The intervals between the halftone dots and the annular halftone dots are arranged at intervals of 0.25 mm in the horizontal and vertical directions, and the screen tonal density is made to be 15 to 16% of the positive type and inserted into the area range as shown in FIG.

The second process uses a computer graphic to produce a screen tone 175 line 35a-1 of the halftone dot and a screen tone of 14% of the saturation type, and is inserted within the area range designated as in FIG.

The third step uses the computer graphics to insert the screen players 200 to 210 lines 35c-1 of the halftone dot and the screen tone density into 12 to 13% Posi type and insert them within the area range designated as in Fig.

In the fourth step, halftone dots are arranged at an angle of 105 deg. To a latent image notation " VOID " like the reference numerals 50a and 50b of Fig. 10 in a background (35c-1) A filter type latent image is applied as shown in FIG.

As described above, by applying the computer graphics to the two-step latent image and the background pattern shown in FIG. 7 in the order of the first step-the second step-the third step-the fourth step, .

When a printing plate is manufactured using the original plan as shown in FIGS. 9 and 10 and then printed, the difference in density between the latent image pattern and the background pattern does not appear due to the dot gain phenomenon as shown in 10a-1 in FIG. 3 , The latent mark does not appear visually.

Copying the copy density with high density copying machine (1,200 dpi resolution) and facsimile machines by adjusting the copying machine density (+4 ~ -4) step by step,

In the filter-type latent image produced in the fourth step, when the portable counterfeit paper money detecting tool as shown in FIG. 12 is placed on the printed matter, the latent image special table appears as shown in FIG. 13 and 40a. In the printed matter, There is a feature that does not appear in the.

Example 2

As shown in FIG. 16, the first step uses a computer graphic to form a rectangular figure. The rectangle 35a-1 has a width of 0.68 mm, a length of 0.04 mm, a horizontal spacing of a rectangle of 0.3 mm, The interval is 0.25 mm, and the screen tone density is made to be 15 to 16% Posi-type and inserted in the range defined as shown in Fig.

The second process uses computer graphics to produce screen tones 200 to 210 lines of the halftone dot 35c-1 and a screen tone of 13 to 14% of the screen tone type, and is inserted in a range specified as shown in Fig.

In the third step, halftone dots are arranged at an angle of 105 deg. To a latent-image mark "VOID" as indicated by reference numerals 50a, 50b in FIG. 10 in a background 35c-1 portion of FIG. 8, A filter type latent image was applied as shown in FIG.

By using computer graphics as described above, the first step latent image and the background pattern of FIG. 6 are applied in the order of the first step, the second step, and the third step in this order, whereby a hypothetical figure for preventing copy-forgery is produced as shown in FIGS.

When a printing plate is produced by using the original plan as shown in FIGS. 8 and 10 and then printed, a difference in density between the latent image pattern and the background pattern is increased by a dot gain phenomenon such as 15a-1 in FIG. 4 And no visible latent mark is visible.

Copying the copy density with high density copying machine (1,200 dpi resolution) and facsimile machines by adjusting the copying machine density (+4 ~ -4) step by step,

In the filter-type latent image produced in the fourth step, when the portable counterfeit paper money detecting tool as shown in FIG. 12 is placed on the printed matter, the latent image special table appears as shown in FIG. 13 and 40a. In the printed matter, There is a feature that does not appear in the.

It will be appreciated by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is to be understood, therefore, that the embodiments described above are to be considered in all respects as illustrative and not restrictive.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

35a-1: 175 screen players of the halftone dot
35b-1: Ring-shaped halftone screen player 95 ~ 110 lines
35c-1: screen player 200 ~ 210 of the halftone dot

Claims (12)

A method for manufacturing a hypodermic face for preventing copy-forgery,
An annular halftone dot 35b-1 formed in a latent image pattern to be displayed on a printed matter, in which screen lines 95 to 110 lines / inch are arranged, and a screen tone density is inserted in a POSI type of 15 to 17%
A halftone dot 35a-1 formed at an outer portion of the latent image pattern, in which screen lines 165-180 lines / inch are arranged, and a screen tone density is inserted in a 14-15%
A halftone dot 35c-1 is formed in the background pattern for inserting the screen player 200 to 210 lines / inch and the screen tone density of 12 to 13% in Posi type,
Wherein the latent image is formed by arranging the angle of the halftone dot in the background pattern at an angle of 75 DEG and the angle of the halftone dot in the latent image pattern at an angle of 105 DEG. Sang Sen is also a manufacturing method.
A method for manufacturing a hypodermic face for preventing copy-forgery,
A rectangle (35a-1) is placed on a latent image pattern represented on a printed matter, and the density of the screen tone is inserted into a posiotype of 15 to 17%
The halftone dots 35c-1 formed on the background pattern represented on the printed matter are inserted into the screen type of 200 to 210 lines / inch and the screen tone density of 12 to 14% The latent-image reference mark 35c-1 is inserted in a Posi type having a screen player of 200 to 210 lines / inch and a screen tone concentration of 12 to 14%
Wherein the angle of the halftone dot in the background pattern is formed by an angle of 75 DEG and the angle of the halftone dot in the latent image pattern is arranged by an angle of 105 DEG.
The method according to claim 1,
The screen line 165-180 line / inch of the screen dot of the annular dot 35b-1 formed on the latent image pattern and the screen dot 35a-1 formed on the outer edge of the latent image pattern,
Wherein the shape and size of the latent image pattern are differently applied.
The method according to claim 1,
When copying by a copying machine,
The screen player 200 line 210 (35c-1) of the halftone dot disappears, the screen player 175 line (35a-1) of the halftone dot is blurred and the annular halftone dot 35b-1 is reproduced in black, Wherein the copying machine is capable of distinguishing a copy from a copying machine.
The method according to claim 1,
The outer diameter of the annular halftone dot 35b-
0.12mm, inner diameter: 0.05mm, outer diameter and inner diameter: 0.07mm, and the distance between the annular dot and the annular dot is 0.25mm. 110 lines, and screen tones of 15 to 17% in a positive type.
3. The method of claim 2,
The rectangle (35a-1)
The horizontal screen spacing is set to 0.25 mm, the horizontal screen spacing is set to 95 to 110, and the screen tone density is set to 15 to 17%. Wherein said method comprises the steps of:
A method for manufacturing a hypodermic face for preventing copy-forgery,
The circular dot (35b-1), which is a latent image pattern reproduced at the time of copying, has an outer diameter of 0.12 mm, an inner diameter of 0.05 mm, and an outer diameter and an inner diameter of 0.07 mm. The distance between the annular dot and the annular dot is A first step of arranging the screen with a pitch of 0.25 mm and a screen having a screen type of 95 to 110 lines and a screen tone concentration of 15 to 17%;
A second step of fabricating the halftone dots applied to the outer periphery of the latent image pattern so as to prevent the latent image pattern from being visually observed, the screen tone 165-180 lines 35a-1 and the screen tone density of 14% ;
A third step of fabricating the halftone dot as a background pattern to be lost upon copying, the screen player 200 to 210 line 35c-1 and the screen tone density of 12 to 13%;
And a fourth step of arranging the latent image pattern angles of the halftone dots at an angle of 105 degrees and arranging the background pattern angles at an angle of 75 degrees so as to apply the hidden elements to a part of the background pattern, Wherein said method further comprises the step of:
8. The method of claim 7,
When a printing plate is produced using the prepared original sheet and then printed,
Wherein a difference in density between the latent image pattern and the background pattern is not caused by the dot gain phenomenon and the latent image non-visible is not visually observed.
8. The method of claim 7,
In the filter-type latent image produced in the fourth step,
Wherein the latent image mark is displayed when the portable counterfeit bill detecting tool is placed on the print, the latent mark is not visible visually in the printed matter, and is not displayed in the copy.
A method for manufacturing a hypodermic face for preventing copy-forgery,
The rectangles (35a-1) of the latent image pattern to be reproduced at the time of copying were made to be 0.68 mm in width and 0.04 mm in width, 0.3 mm in the rectangular spacing and 0.25 mm in the vertical spacing, A first step of preparing a mixture;
The background pattern disappearing during the copying includes a second step of producing screen lines 200 to 210 of the halftone dot 35c-1 and a screen tone density of 13 to 14% in the Posi type;
And a third step of arranging the latent image pattern angles of the halftone dots at an angle of 105 degrees and arranging the background pattern angles at an angle of 75 degrees in order to apply the hidden elements in the background pattern. (JP) METHOD FOR MANUFACTURING SINGLE CHEMICAL FORMATION FOR PREVENTING COPPER FALSE
11. The method of claim 10,
When a printing plate is manufactured using the prepared original sheet and then printed, a difference in density between the latent image pattern and the background pattern is not observed due to the dot gain phenomenon in the printed matter, and the latent image non- (JP) METHOD FOR MANUFACTURING REFLECTIVE.
11. The method of claim 10,
The filter-
Wherein the latent image mark is displayed when the portable counterfeit bill detecting tool is placed on the print, the latent mark is not visible visually in the printed matter, and is not displayed in the copy.

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