KR101127224B1 - A preparing method for latent image printed matter and certificating method for counterfeit using the prepared printed matter together with filter - Google Patents

Abstract

The present invention relates to a filter-type latent image printing method and a method of checking forgery by a filter recognizer.
In the printed matter according to the present invention, the latent image pattern and the background pattern represented in the printed matter include an angle conversion of full lines, an angle conversion of dotted lines and dots, an angle conversion of dotted lines and lines, or an angle conversion of lines and dots. The latent image pattern and the background pattern are designed to have the same screen density during printing. The latent image pattern and the background pattern are arranged at an angle of, for example, 95 degrees in a clockwise direction with respect to the latent image pattern horizontally, and the filter recognizer is 90 to 120 lines (line / inch). Lenticular lattice having a right triangle, equilateral triangle, or semicircular cross section with The latent image pattern of the filter type according to the present invention is difficult to visually identify the latent image pattern, and when printed using a color output device, the latent image table does not appear. Since latent image marks appear, there is a characteristic that can be easily identified as counterfeit.

Description

A manufacturing method for latent image printed matter and certificating method for counterfeit using the prepared printed matter together with filter}

The present invention relates to a filter type latent printed matter manufacturing method and a method for checking forgery by a filter recognizer, and more particularly, to security products such as banknotes, securities, passports, cards, gift certificates, and various certificates for security purposes. Filter-type latent image is not visible in printed matter when filter latent image is applied, and latent image mark appears when checking by filter recognizer. Filter-type latent printed matter manufacturing method and counterfeit by filter recognizer can prevent counterfeiting in advance. It relates to how to check.

Recently, the forgery and alteration of security products such as banknotes, securities, passports, cards, gift certificates, and various certificates for security purposes has emerged as a new social problem. It becomes very precise by grafting.

In order to solve this problem, many anti-counterfeiting methods have been studied. Such anti-counterfeiting techniques include silver, silver wire, fluorescent color yarn, fluorescent ink, color conversion ink, fine text, flat latent images, intaglio printing, and the like. have.

The authenticity identification method of forgery and alteration prevention technology applied to banknotes and securities classifies the authenticity and the counterfeit right by emitting a unique color of fluorescence in the fluorescent ink when UV light is irradiated. Make sure your back is convex.

However, by copying forged elaborately using a color printer (copier, printer), and imitating forgery and falsification by using fluorescent materials, embossing devices, etc. It is difficult to identify authenticity.

In addition, the anti-counterfeiting prints developed after that prevent counterfeiting by displaying latent images when copying into lines and dots, large dots and small dots. For example, Japanese Patent Application No. 58-47708 prints a latent character such as "VOID" on a paper surface with a large dot, and prints a background other than the latent image with a small dot. Since the latent image can be visually identified and the latent pattern is inserted in order to prevent the latent image from being visually identified. However, in the above invention, there is a drawback in that the shade is to be adjusted one by one according to the printing plate during film production.

A method for compensating for this defect is described in Japanese Patent Application No. 62-61943 and Korean Patent Registration No. 0369111. However, this method has the drawback that the anti-counterfeiting effect is shown in the color copier, but the anti-counterfeiting effect is not shown in the color printer using a computer. This shortcoming was developed in Korean Patent No. 574871, but it is required to develop a function according to the diversification of the functions and output methods of the color printer.

Accordingly, the present inventors have studied and researched to solve the problems of the prior art, forming a latent image pattern and a background pattern for a filter using dotted lines and lines, lines and lines, dotted lines and dots or lines and dots and using computer graphics. It has been found that the above problem can be solved by designing a filter which makes the screen density uniform, and identifies the latent image pattern applied to the printed matter, and the present invention has been completed based on this.

Accordingly, an object of the present invention is to solve the above-described problems of the prior art, it is difficult to visually identify the latent image pattern, and the latent image marks are protruded or lost regardless of the direction of the original or the direction of the scanning line of the copier during copying, and a filter is used in the printed matter. It is easy to know that it is a copy by checking the latent image mark, and also a method for manufacturing a printed material that can prevent forgery due to a printer that can be easily applied to a narrow area, and a method for checking whether a forgery is made by a filter recognizer. To provide.

Another object of the present invention is to provide a printed matter produced by the manufacturing method according to the present invention.

According to the present invention, a method of manufacturing a filter latent printed matter according to the present invention includes a film manufacturing step and a printing step, wherein the manufacturing step of the film includes a latent image pattern and a background pattern. Selecting from a combination of dotted lines and lines, lines and lines, dotted lines and dots, and identifying elements of lines and dots; And inserting the selected latent image pattern at an angle of 85 to 110 degrees in a clockwise direction with respect to a horizontal direction of the selected background pattern.

In addition, the filter-like latent image printed material for achieving another object of the present invention is selected from the combination of the latent image pattern and the background pattern, the dotted line and full line, the full line and full line, the dotted line and dot, and the identification element of the line and half line, for example The dotted line or full line is arranged to form an angle of 85 to 110 degrees with respect to the corresponding identification element, and the latent image pattern and the background pattern are distinguished from each other.

In accordance with another aspect of the present invention, there is provided a method of checking forgery by a filter recognizer according to the present invention, in which a lenticular filter grid 90 to 120 lines used for a filter recognizer are set in a clockwise direction by horizontally setting a background pattern of the printed matter. It is characterized in that it is arranged repeatedly at an angle of 105 to 105 degrees.

The latent latent image of the filter-type latent printed matter according to the present invention is difficult to visually identify, and the latent latent image does not appear when the printed image is output using a color output device. It appears that there is a feature that can be easily identified as a counterfeit.

1 is a schematic diagram showing an enlarged state in which a dashed line and a line, an angle transformation of a line and a line are arranged according to the present invention.
2 is an enlarged schematic view showing a state in which a dazzle pattern is arranged in FIG. 1 according to the present invention.
Figure 3 (A) is a schematic diagram showing an enlarged state in which the latent image ratio table does not appear in the printed matter according to the present invention, Figure 3 (B) is an enlarged state of the dazzle pattern without appearing the latent image ratio table in the printed matter according to the present invention It is a schematic diagram shown.
4 is an enlarged schematic view of a lenticular grating according to an exemplary embodiment of the present invention.
Figure 5 is a schematic diagram showing an enlarged state of the latent image ratio shown as the "original" through the lenticular filter of the printed matter according to the present invention.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

The filter-like latent image printed according to the present invention is formed of a latent image pattern disposed to have a predetermined angle with respect to the background pattern as described above. By the interference pattern of the latent image pattern can be confirmed.

1 is an enlarged schematic view showing a state in which a dashed line and a line, an angle transformation of a line and a line are arranged according to the present invention, and FIG. 2 shows a dazzle pattern in FIG. 1 according to the present invention. Figure 3 (A) is a schematic diagram showing an enlarged state, Figure 3 (A) is a schematic diagram showing an enlarged state that does not appear in the printed matter according to the invention, Figure 3 (B) is a latent proportion table in the printed matter according to the present invention It is a schematic diagram showing an enlarged state of the dazzle pattern without appearing, and according to each embodiment of the present invention of FIG. 4, a lenticular lattice 45 composed of right triangles, a lattice 45-1 composed of equilateral triangles, and a lenticular lattice composed of semicircles ( 45-2) is a schematic diagram showing an enlarged state of the arrangement, and FIG. 5 is a schematic diagram showing an enlarged state in which the latent image ratio table is represented as “original” through the lenticular filter of the printed matter according to the present invention.

As described above, the printed matter according to the present invention is inserted into the latent image or the angle conversion of dotted lines and lines in the background. For example, 104 lines of horizontal lines are horizontally inserted into the background pattern and 175 lines of the latent image pattern are made horizontally. Insert the dashed line 95 degrees clockwise. The angle conversion of the full line and the full line, the angle conversion of the dotted and dotted lines, and the angle conversion technique of the half-dot and the full line can be manufactured in the same way as the angle conversion method of the dotted line and the full line.

In the method for producing a latent printed image of a filter type according to the present invention, the method for manufacturing a latent image of a filter type may include four types (dotted line and full line, full line and full line, dotted line and half dot or angled line and half line). One of the four latent image patterns and the background pattern is formed by a dotted line, a line, a dotted line, and the corresponding latent image pattern or the background pattern is formed by a line, a dot, a dotted line, and the dotted line and a line, a line and a line, and a dotted line And dot, dot and dot are placed at different angles, where the dotted line is a screen tone of 175 to 200 lines (inch / inch) with a thickness of 0.15 to 0.030 mm, an interval of 0.05 to 0.07 mm, and a length of 0.10 to 0.25 mm. And a screen concentration of 12 to 14%, wherein the line has a screen lead of 100 to 120 lines having a thickness of 0.05 to 0.10 mm and an interval of 0.15 to 0.25 mm, and a screen concentration of 15 to 16%. In addition, in the case of the dot, it is preferable to have a screen line of 175 to 220 lines and a screen concentration of 12 to 14%.

Specifically, the size of the dotted line is the filter-like latent image effect is most excellent when it is within the range, there is a problem that the latent image on the paper is confirmed even with the naked eye. In addition, in the case of the dotted line interval, if the screen density is exceeded, the screen density decreases so that the size of the dotted line must be largely adjusted. If the size of the dotted line is increased, the latent image on the paper is visually identified. Similarly, when the size of the full line is within the above range, the latent flaw effect is most excellent, and when the excess line exceeds the above range, there is a problem that the latent image on the paper is visually identified. In addition, in the case of full line, the screen density decreases when the range is exceeded, and the size of the full line must be largely adjusted. When the size of the full line is increased, the latent image on the paper is visually identified.

Screen concentration during the production of the latent filter type is different depending on the production method. The screen density difference of dotted line is 1 to 4% when the angle of dotted line and line is converted, and the screen density difference is identical when the angle of line and line is converted. It is set. The reason for this determination is that when the film is printed, the dotted line generates a dot gain phenomenon larger than full line. If the difference in screen density between the dotted line and full line is less than 1%, the ink density of the dotted line on the paper becomes higher than the ink density of the full line, and the pattern composed of the dotted lines is visually identified on the paper. When the difference exceeds 4%, the ink of the dotted line on the paper becomes lower than the ink density of the full line, so that the pattern composed of the dotted lines is visually identified on the paper.

Therefore, in order to prevent latent image from being identified by the naked eye, the dotted line concentration on the film is 1 to 4 times the concentration of the total line in order to prevent the latent image from being observed by the dotted lines and lines, the lines and lines, the lines and lines, and the angles of the lines and lines. % Should be weak.

division Film (Screen) Concentration Printed Ink Concentration Remarks Dotted and full line
Angle conversion Dotted line: 12-14%
Full: 14-16% Dotted line: 15-16%
Full: 15? 16% The ink density is the same, so the latent image ratio cannot be seen Full and full of
Angle conversion Full: 13 ~ 15%
Full: 13 ~ 15% Full: 15? 16%
Full: 15? 16% ” Dotted and dotted
Angle conversion Dotted line: 12-14%
-Dots: 12-14% Dotted line: 15-16%
-Dots: 15-16% ” Full of lines and dots
Angle conversion Full: 13 ~ 15%
-Dots: 12-14% Full: 15? 16%
-Dots: 15-16% ”

In general, the dotted line, line, and dot area of the printed film by computer graphics do not match the dotted line, line, and dot area of the printed product, and after printing by film or printing plate exposure, pressure, etc. There was a problem that the dots of printed matter were enlarged. For example, a latent pattern of fine dotted lines with 200 lines of screen tone and 13% of screen density in the film production state by computer graphics is printed at 200 lines of screen tone and 16% of screen density at the time of printing, In the background pattern of the film pattern produced by the thick full line computer graphics, 104 lines of the screen tone liner and 13% of the screen density are printed with 104 lines of the screen liner and 16% of the screen tone density. This phenomenon is conventionally referred to as dot gain.

 In the method of manufacturing a latent printed image of a filter type and a method of checking forgery by a filter recognizer, the background pattern is regularly arranged with a film density of dotted lines, lines, and dots of about 14%, and then the latent image pattern is removed. When placed on the screen (screen player), the background pattern and the latent image pattern on the film (screen player) have different shapes depending on angles of dotted lines and full lines, full lines and full lines, dotted lines and dots, and full lines and dots. do.

When the filter-type latent image printed according to the present invention has a horizontal background pattern, the background pattern and the latent image pattern are distinguished from each other by an angle formed by the latent image pattern. Preferably, the background pattern is a zen line or a dotted dot, the latent image pattern. Is selected from a dotted line or a line, wherein the angle conversion of the dotted line and the line, the angle conversion of the line and the line, the angle conversion of the dotted line and the dot, and the angle conversion of the line and the dot are made as shown in FIG. In the printed matter according to the present invention, a latent image or a dotted line is inserted into the latent image or the background by angular conversion. Insert the dashed line of ～ 200 lines clockwise to 85 to 110 degrees. In addition, when a printed matter is produced by inserting 100-120 lines of horizontal lines as a background pattern horizontally, and inserting 100-120 lines of horizontal lines as a latent image pattern in a clockwise direction from 85 degrees to 110 degrees, a latent image ratio is displayed on the printed material. Similarly, the latent image ratio does not appear in the printed product even when a halftone having a screen player of 175 to 220 lines is used as a background pattern and a latent pattern or a dotted line is inserted at 85 to 110 degrees as a latent image pattern. Will not. When the dot is a background pattern, when the dot is equally spaced, the extension line connecting the plurality of dots may be horizontally referred to, and in the case of a random dot, it may be based on the horizontal axis of the target film or printed material. It may be. Since the insertion angle of the latent image pattern is based on a specific or imaginary horizontal line on the background pattern, it is not a problem in the application of the present invention even if the horizontal reference line of the background pattern does not exactly coincide with the horizontal direction of the printed matter once the reference is established.

In addition, during the production of the printed matter according to the present invention, by additionally inserting a dazzle pattern, it is possible to further reduce the possibility of confirming the latent image ratio by the naked eye.

As described above, in the angle conversion using the dotted line or full line as the latent image pattern, and the latent image pattern as the background pattern, when the latent image pattern is made to be less than 85 degrees clockwise when the background pattern is horizontal, optical interference It is difficult to visually identify the latent image pattern due to less occurrence of the phenomenon, and even when the angle of the latent image pattern exceeds 110 degrees, the optical interference phenomenon is less generated, making it difficult to visually identify the latent image pattern. Therefore, the angle conversion of the latent image pattern and the background pattern is preferably 85 to 110 degrees with respect to the horizontal reference of the background pattern, and more preferably, the conversion angle is 90 degrees to 105 degrees.

In the case of such printed matter, if it is desired to check forgery by the filter recognizer, the lenticular filter lattice of 90 to 120 lines used for the filter recognizer is preferably clockwise with respect to the horizontal direction (?) Of the background pattern of the printed matter. By closely contacting the printed matter at an angle of 90 degrees to 110 degrees, more preferably 95 degrees to 105 degrees, an optical interference phenomenon occurs in the latent image pattern, thereby identifying the latent image pattern. If the angle of the lenticular filter is less than 90 degrees, more than 110 degrees, the phase difference is not enough, so the optical interference cannot be confirmed.

As shown in FIG. 4, the lenticular filter used for the filter recognizer may be a lenticular lattice 45 each having a right triangle, a lattice 45-1 having an equilateral triangle, or a lenticular lattice 45-2 having a semicircular shape. Can be.

In the case of the printed matter thus produced, the screen player is adjusted according to the size of the dotted line and the full line, so that the latent ratio mark does not appear in the printed matter, the latent ratio mark of “original” appears in the filter recognizer, and the latent ratio mark does not appear in the copy. In addition, as in the present invention, the fingerprints of banknotes and securities can be naturally patterned and inserted as non-disclosure elements, thereby preventing counterfeiting by copying.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the scope of the present invention is not limited thereto.

Example  One

The dotted line is placed in a screen line of 175 lines of 0.02 mm in thickness, 0.06 mm in thickness, and 0.2 mm in length, and after producing a latent image pattern of 12% Posi type, the line is 0.10 mm in line thickness. A background pattern of Posi type was produced with a screen line of 104 lines with a line spacing of 0.20 mm and a screen density of 15%. The angle of the dotted line prepared in the latent image pattern was converted to an angle of 95 degrees, it was prepared as shown in FIG.

When the printing plate is manufactured and printed using the printed film thus produced, the final printed matter is dazzled by dotted lines and full lines, so there is no difference in color shade between the latent image pattern and the background pattern, and the latent image ratio is not visually identified.

In addition, when the filter recognizer checks the printed matter with the lenticular lattice 45 composed of the right triangle of FIG. 4, the “original” character, which is the latent image ratio, is clearly shown as shown in FIG. 5 by the interference phenomenon. Copies made using a color copier (Fuji Xerox DC3535, Konica Minolta Bizhub C352) do not show latent proportions in the copy, so the public can easily check the authenticity.

Example  2

The full line was prepared as shown in FIG. 1 by converting the angle of the latent image pattern and the background pattern to 95 degrees clockwise using a screen having a screen thickness of 110 lines with a line thickness of 0.10 mm, a line spacing of 0.15 mm, and a screen density of 14%. . Also, as shown in FIG. 2, a dazzle pattern may be inserted.

When the printing plate is made and printed with the printing film thus produced, the final printed matter has the dazzle effect of the dazzling pattern and the angle conversion of the dazzling line, so there is no difference in the color tone between the latent image pattern and the background pattern. Not identified.

In addition, when the filter recognizer checks the printed matter with the lenticular grid 45-1 composed of the equilateral triangle of FIG. 4, the "original" character, which is the latent image ratio, is clearly shown in FIG. 5 due to the interference phenomenon. As a result of copying with a color copier (Fuji Xerox DC3535, Konica Minolta Bighub C352), the copy does not show a latent proportion table so that the public can easily check the authenticity.

Example  3

The dotted line is placed in a screen line of 200 lines having a thickness of 0.02 mm, a thickness of 0.05 mm, and a length of 0.25 mm, and after producing a latent image pattern having a screen line concentration of 12% Posi type, the dots are screen lines of 220 lines and A background pattern of Posi type was produced at a screen concentration of 14%. The angle of the dotted line manufactured with the latent image pattern was prepared as shown in FIG. 1 in a clockwise direction based on the background pattern.

When the printing plate is manufactured and printed using the printed film thus produced, the final printed matter is dazzled by dotted lines and full lines, so there is no difference in color shade between the latent image pattern and the background pattern, and the latent image ratio is not visually identified.

In addition, when the filter recognizer checks the printed matter by the lenticular grid 45-2 having the semicircular shape of FIG. 4, the “original” character, which is a latent image ratio, is clearly shown as shown in FIG. 5 by the interference phenomenon. Copies made using a color copier (Fuji Xerox DC3535, Konica Minolta Bizhub C352) do not show latent proportions in the copy, so the public can easily check the authenticity.

10, 50: base sheet 20: full
30: dotted line 35: dazzle pattern
40: angle of full line 45: lenticular lattice (rectangular)
45-1: lenticular lattice (equilateral triangle), 45-2: lenticular lattice (semicircular)
55: Non-marking in Filter Recognizer

Claims (9)

delete In the method for producing a latent printed image of a filter type including a film manufacturing step and a printing step, the manufacturing step of the film may include a latent image pattern and a background pattern, including dotted lines and lines, lines and lines, dotted lines and dots, and lines and dots. Selecting from a combination of identification elements; And inserting the selected latent image pattern at an angle of 85 to 110 degrees in a clockwise direction with respect to a horizontal direction of the selected background pattern.
Here, the latent image pattern is a dotted line, the background pattern is a full line, wherein the dotted line is a screen tone player of 175 to 200 lines having a line thickness of 0.015 to 0.030 mm, an interval of 0.05 to 0.07 mm, and a length of 0.10 to 0.25 mm, and 12 A screen-like latent printed matter characterized by having a screen density of ˜14%, wherein the line has a screen density of 100 to 120 lines with a thickness of 0.05 to 0.10 mm, an interval of 0.15 to 0.25 mm, and a screen concentration of 14 to 16%. Manufacturing method. In the method for producing a latent printed image of a filter type including a film manufacturing step and a printing step, the manufacturing step of the film may include a latent image pattern and a background pattern, including dotted lines and lines, lines and lines, dotted lines and dots, and lines and dots. Selecting from a combination of identification elements; And inserting the selected latent image pattern at an angle of 85 to 110 degrees in a clockwise direction with respect to a horizontal direction of the selected background pattern.
Here, the latent image pattern and the background pattern are made up of full lines and full lines, wherein the full lines are arranged in a screen line of 100 lines to 120 lines having a line thickness of 0.05 to 0.10 mm and a line spacing of 0.15 to 0.25 mm. A method for producing a latent printed filter type image comprising a latent image pattern and a background pattern having a concentration of 13 to 15% of Posi type. In the method for producing a latent printed image of a filter type including a film manufacturing step and a printing step, the manufacturing step of the film may include a latent image pattern and a background pattern, including dotted lines and lines, lines and lines, dotted lines and dots, and lines and dots. Selecting from a combination of identification elements; And inserting the selected latent image pattern at an angle of 85 to 110 degrees in a clockwise direction with respect to a horizontal direction of the selected background pattern.
Here, the latent image pattern is a dotted line, the background pattern is made of dots, wherein the dotted line is a screen line of 175 lines to 200 lines having a thickness of 0.015 to 0.030 mm, an interval of 0.05 to 0.07 mm, and a length of 0.10 to 0.25 mm. Posi-type latent image patterns with 12-14% screen line density, and dots are screen lines with 175-220 lines and Posi-type background patterns with 12-14% screen density. Method for producing a latent printed filter type, characterized in that the forming. In the method for producing a latent printed image of a filter type including a film manufacturing step and a printing step, the manufacturing step of the film may include a latent image pattern and a background pattern, including dotted lines and lines, lines and lines, dotted lines and dots, and lines and dots. Selecting from a combination of identification elements; And inserting the selected latent image pattern at an angle of 85 to 110 degrees in a clockwise direction with respect to a horizontal direction of the selected background pattern.
Here, the latent image pattern is full line, and the background pattern is made of halftone dots, wherein the full line is arranged with screen lines of 100 to 130 lines having a line thickness of 0.04 to 0.10 mm and a line spacing of 0.15 to 0.25 mm, The latent image pattern forms a latent image pattern of 13-15% Posi type, and the dot dots form a background pattern of Posi type with a screen line of 175-220 lines and a screen density of 12-14%. Method for producing a filter latent printed matter. The method according to any one of claims 2 to 5, wherein the manufacturing of the film further comprises inserting a dazzle pattern. A latent image and a background pattern are selected according to any one of claims 2 to 5, wherein the latent image pattern and the background pattern are selected from a combination of dotted lines and lines, lines and lines, dotted lines and dots, and identifying elements of lines and dots. And the pattern and the background pattern are arranged to form an angle of 85 to 110 degrees with respect to a corresponding identification element, wherein the latent image pattern and the background pattern are distinguished.  A lenticular filter lattice of 90 to 120 lines used for the filter recognizer is arranged so as to have an angle of 95 to 105 degrees in the clockwise direction with the background pattern of the filter latent image print according to claim 7 horizontally. How to identify latent image patterns on printed matter. The method of claim 8, wherein the lenticular filter has a cross section of a unit grid having a right triangle, an equilateral triangle, or a semicircle.

Images