JP2007044889A - Measuring method of printing register, register mark and forming device of register mark - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for enabling easy visual measurement of the relative position of a register mark for registering in multicolor printing, the register mark and a forming device of the register mark. <P>SOLUTION: Equipment for adding the printing register mark has a storage means which stores register mark data 180 wherein the shape data on a main scale register mark 185a and a vernier scale register mark 185b constituting the register mark 185 are recorded and platemaking data wherein a color plate object is recorded, a register mark specifying means which generates position coordinates of the main scale register mark or the vernier scale register mark from the position coordinates of the register mark contained in register mark position specification and prepares the color plate object containing the generated position coordinates of the main scale register mark and the shape data thereon or the position coordinates of the vernier scale register mark and the shape data thereon, and a means which generates the platemaking data with the register mark by adding the prepared color plate object to the platemaking data. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a method for measuring a displacement of a printing position when performing registration in multicolor printing.

Conventionally, in order to perform registration in multi-color printing, a registration mark typified by a registration mark is printed around the print area, and the relative position of each color registration mark is measured to determine the degree of misalignment. The registration is adjusted by multi-color printing.

For example, Patent Document 1 discloses a technique for visually determining the degree of positional deviation from the difference in print shape that occurs in accordance with the degree of overlap of register marks for each color. (Prior art 1)
Japanese Examined Patent Publication No. 7-47310 (pages 2 to 3, FIGS. 1 to 5) Patent Document 2 discloses a technique for measuring the amount of misregistration by measuring the position of each printed registration mark of each color. ing. (Prior art 2) JP 2002-192702 (pages 4-7, FIGS. 1-4)

However, although the prior art 1 can see the degree of positional deviation, there is a drawback that the positional deviation amount cannot be quantified. Further, in the prior art 2, the printed registration marks for each color must be magnified using a scaled magnifying glass or a tool such as a microscope, which takes time for measurement and reduces workability. was there. In particular, in the case of microscopic observation, it is necessary to cut off the register mark portion from the printed matter, which has the disadvantage of making the measurement operation more complicated.

The present invention has been made in consideration of such a conventional technique, and the object of the present invention is to provide a method for easily measuring the relative position of a registration mark for registration in multicolor printing, A register mark and a register mark generating device are provided.

The present invention solves the above problems by the following means. That is, according to the first aspect of the present invention, register mark position designation information for recording the position coordinates of a register mark, plate making data for recording a color plate object, and a register mark including a color plate object designating a register mark From the plate making data, the register means data for registering the main scale register mark constituting the register mark and the register mark data for recording the shape data of the vernier register mark, and the position coordinates of the register mark included in the register mark position designation, Generate the position coordinates of the ruler register mark or vernier register mark, and generate the position coordinates of the main register mark and the main register mark shape data, or the position coordinates of the ruler register mark and the vernier register mark shape data. Register mark designating means for creating the included color plate object and the generated color plate object are added to the plate making data, and the plate making data with the register mark is added. A plate making data generating means with register marks for generating data, a printing register mark additional apparatus equipped with.

Therefore, it is possible to easily generate the plate making data to which the register mark is added.

The invention according to claim 2 is a method for measuring registration misalignment in multi-color printing, and is a plurality of registration marks in which a predetermined number of line segments are arranged at equal intervals, and at least one registration mark is provided. The line segment interval is a print register mark that is different from the line segment interval of other register marks. The register mark is formed when the first color is printed, and is formed when the first color is printed in the second and subsequent colors. Two registration marks that are adjacent to the printed registration mark and that are different from the line spacing of the first color printing registration mark are formed so that the first color registration mark scale and the second and subsequent color printing registration marks match. A misregistration amount characterized by calculating a misalignment amount between two line segments to be matched by measuring a distance between two line segments actually matching the line segment and multiplying by a predetermined value This is a calculation method.

Therefore, by printing the registration mark, it is possible to calculate the amount of printing deviation from a predetermined position.

The invention according to claim 3 is a plurality of multi-color printing register marks in which a plurality of line segments of a certain length are arranged at equal intervals, and the line segment interval of at least one print register mark is different from that of other prints. A register mark for multicolor printing that is different from the line interval of the register mark, and between the two line segments that actually match the two line segments that the print register mark of two different line segment intervals should match. The misregistration mark for multi-color printing is characterized in that the amount of misalignment between two line segments to be matched can be calculated by measuring the number of line segments and multiplying by a predetermined value.

Therefore, it is possible to determine the amount of deviation from a predetermined position quantitatively by visually measuring the number of line segments of the printing register mark.

According to a fourth aspect of the present invention, there is provided a printing registration mark measuring system comprising a printing registration mark adding device, a plate making device, and a printing machine, wherein the printing registration mark adding device Register mark position designation information for recording the position coordinates, plate making data for recording the color plate object, plate making data with a register mark including the color plate object for which the register mark is designated, and a full scale register mark constituting the register mark The position coordinates of the main scale register mark or the vernier register mark are generated from the storage means for storing the register mark data for recording the shape data of the vernier register mark and the position coordinates of the register mark included in the register mark position designation. Position coordinates and main scale register mark shape data, or vernier register mark position coordinates and vernier register mark shape data. A register mark specifying means for creating a color plate object, and a plate making data generation apparatus with a register mark for adding the generated color plate object to the plate making data and generating plate making data with a register mark. The printing plate creating apparatus includes a printing plate creating means for receiving plate making data with a register mark and creating a printing plate with a register mark, and the printing press includes a printing plate with a register mark. A printing misregistration amount measuring system comprising a printing unit that performs multi-color printing using a printer to create a printed material with a registration mark.

The invention according to claim 5 is a computer program that causes a computer to operate as the printing register mark generation device according to claim 1 or 4 by being incorporated in the computer.

A sixth aspect of the present invention is a computer program medium according to the fifth aspect.

According to the present invention, it is possible to quantitatively measure the color misregistration amount visually without using a tool in the measurement of the color misregistration amount in multicolor printing, and the work efficiency is greatly improved. In addition, it is possible to measure the color misregistration amount without processing the printed matter, and the measurement work amount is greatly reduced.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings. FIG. 1 is an explanatory diagram of processing of the printing registration amount measurement system 1 using registration marks. The registration mark adding device 100 receives the plate-making data 160 that has been edited (FIG. 1A). The registration mark data 180 is added to the plate making data 160 to generate the plate making data 170 with a registration mark ((i)). The printing plate creation apparatus 300 creates a printing plate 350 using (F) the plate making data 170 with a registration mark (same (F). The printing machine 500 performs multicolor printing using the printing plate 350 ( The printing press operator visually observes the registration mark 185 of the printed material 550 and measures the amount of misalignment of the registration mark 185 (same (B)). The adjustment information of the printing press is calculated from the amount of misalignment, and the printing press 500 is adjusted (same as (S)) until the misalignment amount of the registration mark 185 of the printed matter 550 satisfies a predetermined condition from (S) to ( (Same).

FIG. 2 is a detailed configuration diagram of the register mark adding apparatus according to the present invention. The registration mark adding device 100 includes a registration mark designation unit 110, a registration mark-added plate making data generation unit 130, and a storage unit 190. The storage unit 190 stores register mark position designation 150, plate making data 160, plate making data 170 with a register mark, and register mark data 180.

The registration mark position designation information 150 records the position coordinates of the registration mark. The plate making data 160 records a color plate object. The plate making data 170 with a registration mark is plate making data including a color plate object in which a registration mark is designated. The register mark data 180 records the shape data of the main scale register mark and the vernier register mark constituting the register mark.

The register mark designating unit 110 generates the position coordinates of the main scale register mark or the vernier register mark from the position coordinates of the register mark included in the register mark position designation 150, and the position coordinates of the generated main scale register mark and the book A color plate object including the rule register mark shape data or the position coordinates of the vernier register mark and the vernier register mark shape data is created. The registration mark-added plate making data generation unit 130 adds the generated color plate object to the plate making data 160 to generate the registration mark-added plate making data 170.

The registration mark designation unit 110 and the registration mark-added plate making data generation unit 130 are computer programs. The storage unit 150 is a nonvolatile storage memory. Registration mark position designation information 150, plate making data 160, and knockout plate making data 170 are computer-readable data.

FIG. 3 is an explanatory diagram of plate making data. The plate making data 160 includes a color plate object 161 and a management object 162.

The color plate object 161 includes “color plate ID” 161a, “position coordinates” 161b, “color plate position object data” 161c, and the like. Note that “color plate ID” is an identification symbol indicating the ink color when this object is printed, and “position coordinates” is a coordinate value when “color plate position object data” 161c is printed. The “color plate position object data” 161c is image data, character data, or shape data to be printed.

Here, for example, if “color plate ID = black ID”, it indicates that the color plate object 161 is a black plate object 163 for printing with a black plate, and similarly, “color plate ID = If it is “Indigo ID”, it indicates that the color plate object 161 is the indigo plate object 164 for printing with the indigo plate. If “color plate ID = red ID”, it indicates that the color plate object 161 is a red plate object 165 for printing in the red plate. If “color plate ID = yellow ID”, it is indicated that the color plate object 161 is a yellow plate object 166 for printing with a yellow plate.

Therefore, for example, the black object 163 includes “black ID”, “position coordinates”, “black data”, and the like. Note that “black ID” is an identification symbol indicating that this object is the black object 163, and “position coordinates” of the black object 163 are values of the “black data” coordinates. “Black data” is image data, character data, and shape data to be printed with a black plate.

The configuration of the other color plate objects is the same.

Here, the main scale mark shape data 180a and the vernier mark shape data 180b of the register mark data 180 are recorded in the “color plate position object data” 161c.

The management object 162 includes “management ID”, “plate making size”, “finished size”, “origin coordinates”, “register mark position”, and the like.

FIG. 4 is an explanatory diagram of the register mark data 180. The register mark data 180 includes main scale register mark shape data 180a and vernier register mark shape data 180b. The full-scale register mark shape data 180a is incorporated into the plate-making data 160 to generate plate-making data 170 with a register mark (details will be described later), thereby printing the full-scale register mark 185a. The vernier register mark shape data 180b is incorporated into the plate making data 160 to generate the plate making data 170 with a register mark (details will be described later), thereby printing the vernier register mark 185b.

FIG. 5 shows an example of plate making data 170 with a register mark. For example, the main scale register mark 185a printed in the black plate has the main scale register mark shape data 180a recorded in the color plate object data 163c of the black plate object 163, and the main scale register mark coordinates are set in the coordinates 161c. To be recorded. The vernier registration mark 185b printed on the indigo plate has the vernier registration mark data 180b recorded in the color plate object data 164c of the indigo plate object 164, and the vernier registration mark coordinates are recorded in the coordinates 164c. The

FIG. 6 is an explanatory diagram of a printing plate 350 on which register marks are arranged. A main scale register mark 185a and a sub-scale register mark 185b are arranged at predetermined positions on the printing plate 350 created from the plate making data 170 with a register mark described in FIG. That is, the full scale register mark 185a is formed and arranged on the black color printing plate 350a based on the full scale register mark shape data 180a of the black plate object 163 included in the prescription data 170 with the register mark. Similarly, the vernier registration mark data 185b is formed and arranged on the indigo plate 350b based on the vernier registration mark shape data 180b of the indigo plate object 164 included in the plate making data 170 with a registration mark. .

Here, the origins of the two registration marks (the main scale registration mark 185a of the black color printing plate 350a and the minor scale registration mark 185b of the indigo color printing plate 350b) are arranged to coincide with each other.

In the case where the registration deviation in the printing progress direction and the registration deviation in the perpendicular direction are measured at the same time, the registration mark may be set at two locations, the printing progress direction and the perpendicular direction.

FIG. 7 is an example of a registered register mark. The printed matter 550 printed with the black plate 350a and the indigo plate 350b described with reference to FIG. 6 forms a register mark 185. According to this register mark 185, it can be visually confirmed that the origins of the main scale register mark 185a and the vernier register mark 185b are misaligned.

For example, the line segment of the main scale register mark 185a is formed to have a thickness of about 0.05 mm and a length of about 10 to 20 mm, a scale interval of 1 mm, and a range of −10 mm to 50 mm with the origin in between. On the other hand, the line segment of the vernier registration mark 185b has a thickness of about 0.05 mm and a length of about 8 to 12 mm, and a predetermined scale interval is provided.

Note that when the number of types of printing ink is increased as in three-color printing or four-color printing, the number of printing plates on which the vernier registration mark 185b is printed may be increased. In general, the main scale register mark 185a is printed with a dark black ink plate, and the vernier register mark 185b is printed with indigo, red, and yellow plates. At this time, the main scale register marks 185a of the black plate are arranged at three positions with appropriate intervals (for example, 20 mm or more), and the vernier of each color is positioned at the origin (0 mm) of each main scale. If they are arranged together, the same effect can be obtained.

FIG. 8 is a diagram for explaining a mechanism for measuring the shift amount of the registration mark. The register mark 185 includes a main scale register mark 185a and a vernier register mark 185b. The vernier register mark scale 185z is a reduction scale of the main scale register mark scale 185y. For example, the scale is scaled so that the scale of the main scale register mark 185 y is “1” and the scale of the sub scale register mark 185 z is “9/10”. That is, the scale 185z “10” of the major scale register mark is assigned to the scale 185y “9” of the main scale register mark.

FIG. 9 is an explanatory diagram of a method of calculating the amount of misregistration between the main scale register mark and the vernier register mark.
When the origin 185g of the main scale register mark and the origin 185h of the vernier register mark do not coincide with each other, the scale 185y of the main scale register mark and the scale 185z of the vernier register mark are searched for. . For example, when the corresponding scale is “7” 185 m, the distance between the origin 185 h of the minor scale register mark and the scale “7” is 7 × 9/10, and therefore the origin 185 g of the major scale register mark and the minor scale register The displacement 185n of the mark origin 185h can be calculated by subtracting the distance between the origin of the vernier register mark and the scale “7” from the distance between the origin of the main scale register mark and the scale “7”. . That is, 7−7 × 9/10 = 7/10 is calculated.

FIG. 10 is a flowchart of the register mark generation process.
(1) The platemaker creates register mark position designation information 150 including the position coordinates of the register mark 185. (Step S110)
(2) The register mark specifying means 110 generates position coordinates of the main register mark 185a from the position coordinates of the register mark 185 included in the register mark position specifying information 150, and includes main register register mark shape data 180a. A black plate object 163 is created. (Step S120)
(3) The register mark designating unit 110 generates the position coordinates of the vernier register mark 185b from the register mark position designation information 150 included in the register mark designation information, and the indigo plate object including the vernier register mark data 180b. 164 is created. Returning to the top of this step, a red plate object 165 and a yellow plate object 166 are created in the same manner. (Step S130)
(4) The registration mark-added plate making data generation unit 130 adds the generated color plate object to the plate making data 160 to generate the registration mark-added plate making data 170. (Step S140)
(5) If there is a register mark to be added, return to step (2). If not, exit. (Step S150)

In the description of the embodiment, the case where the line segment areas of the main scale register mark and the vernier register mark are in contact with each other is described. However, the line segment areas of the main scale register mark and the vernier register mark are arranged so as to overlap each other. You may do it. This makes it easier to visually confirm the overlapping state of the register mark line segments. In addition, even if a print misalignment occurs in a direction in which the line segment area is far away, the line segment areas are not separated from each other, thereby enabling measurement. Incidentally, if the line segments of the main scale and the vernier are arranged so as to overlap each other by about 5 mm, there is no practical problem.

As described above in detail, according to the present invention, it is possible to quantitatively measure the amount of color misregistration visually without using a tool in measuring the amount of color misregistration in multicolor printing, and the work efficiency is improved. Greatly improved. In addition, the amount of color misregistration can be measured without processing the printed matter, and the amount of measurement work is greatly reduced.

Explanatory drawing of processing of printing misregistration measurement system using register mark Detailed configuration diagram of register mark adding device according to the present invention Illustration of the structure of plate making data Illustration of register mark data Example of plate making data with register mark Illustration of printing plate with register mark Example of printed register mark Illustration of the register mark mechanism Illustration of how to calculate the amount of misregistration between the main scale register mark and the vernier register mark Flow chart of register mark adding device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Printing registration amount measuring system using registration mark 100 Registration mark addition apparatus 110 Registration mark designation | designated means 130 Registration-mark-attached plate-making data generation means 150 Registration mark position designation information 160 Plate-making data 161 Color plate object 162 Management object 161a Color plate ID
161b Position coordinates 161c Color plate position object data 163 Black plate object 164 Indigo plate object 165 Red plate object 166 Yellow plate object 170 Plate-making data with register mark 180 Register mark data 180a Main scale mark shape data 180b Verticule mark shape data 185y Main scale Register mark scale 185z Sub-scale register mark scale 185g Main-scale register mark origin 185h Sub-scale register mark origin 185n Deviation amount 190 Storage means 300 Plate making apparatus 350 Plate 350a Black plate 350b Indigo plate 350b Plate 500 Printer 550 Printed matter

Claims (6)

Register mark position designation information for recording the position coordinates of the register mark, plate making data for recording the color plate object, plate making data with the register mark including the color plate object for which the register mark is designated, and the main scale constituting the register mark Storage means for storing register mark data and register mark data for recording shape data of a vernier register mark;
From the position coordinates of the register mark included in the register mark position specification, the position coordinates of the main scale register mark or the vernier register mark are generated, and the position coordinates of the generated main scale register mark and the main scale register mark shape data, or Register mark designating means for creating a color plate object including the position coordinates of the vernier register mark and the vernier register mark shape data;
Adding the generated color plate object to the plate making data and generating plate making data with a register mark;
Printing register mark adding device equipped with. A method for measuring misregistration in multicolor printing,
A plurality of register marks in which a plurality of line segments of a certain length are arranged at equal intervals,
The line spacing of at least one registration mark is a printed registration mark different from the line spacing of other registration marks,
A register mark is formed when printing the first color,
In printing after the second color, adjacent to the printing register mark formed at the time of printing the first color, a register mark different from the line segment interval of the first color printing register mark is formed,
By measuring the distance between the two line segments that actually match the two line segments that the scale of the first color register mark and the print register marks of the second and subsequent colors match, and multiplying by a predetermined value, A method for calculating a misregistration amount, comprising: calculating a misalignment amount between two line segments to be matched. A plurality of register marks for multicolor printing in which a plurality of line segments of a certain length are arranged at equal intervals,
The line spacing of at least one printing registration mark is a multicolor printing registration mark different from the line spacing of other printing registration marks,
Measure the number of line segments between the two line segments that actually match the two line segments that you want to match the print registration marks at two different line segment intervals, and then match them by multiplying them by a predetermined value. A register mark for multi-color printing, which can calculate the amount of misalignment between two line segments desired to be made. A printing misregistration amount measuring system comprising a printing register mark adding device, a plate making device, and a printing machine,
The printing register mark adding device is
Register mark position designation information for recording the position coordinates of the register mark, plate making data for recording the color plate object, plate making data with the register mark including the color plate object for which the register mark is designated, and the main scale constituting the register mark Storage means for storing register mark data and register mark data for recording shape data of a vernier register mark;
From the position coordinates of the register mark included in the register mark position specification, the position coordinates of the main scale register mark or the vernier register mark are generated, and the position coordinates of the generated main scale register mark and the main scale register mark shape data, or Register mark designating means for creating a color plate object including the position coordinates of the vernier register mark and the vernier register mark shape data;
Adding the generated color plate object to the plate making data and generating plate making data with a register mark;
An additional device comprising:
The plate making apparatus comprises:
A creation device having plate making means for receiving plate making data with a registration mark and creating a printing plate with a registration mark,
The printing press
A printing misregistration amount measuring system comprising a printing unit that performs multicolor printing using a printing plate with a register mark to create a printed material with a register mark. A computer program for causing a computer to operate as the printing register mark generating device according to claim 1 or 4 by being incorporated in the computer. 5. A computer program medium.

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