WO2023195534A1 - カラーパッチおよび印刷システム - Google Patents

カラーパッチおよび印刷システム Download PDF

Info

Publication number
WO2023195534A1
WO2023195534A1 PCT/JP2023/014344 JP2023014344W WO2023195534A1 WO 2023195534 A1 WO2023195534 A1 WO 2023195534A1 JP 2023014344 W JP2023014344 W JP 2023014344W WO 2023195534 A1 WO2023195534 A1 WO 2023195534A1
Authority
WO
WIPO (PCT)
Prior art keywords
color
color patch
patch
printing
printed matter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2023/014344
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
聡 江島
浩一 金綱
和久 真島
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Komori Corp
Original Assignee
Komori Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Komori Corp filed Critical Komori Corp
Priority to CN202380040288.2A priority Critical patent/CN119136987A/zh
Priority to JP2024514323A priority patent/JPWO2023195534A1/ja
Priority to CA3251310A priority patent/CA3251310A1/en
Priority to EP23784818.9A priority patent/EP4506169A4/en
Publication of WO2023195534A1 publication Critical patent/WO2023195534A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0036—Devices for scanning or checking the printed matter for quality control
    • B41F33/0045—Devices for scanning or checking the printed matter for quality control for automatically regulating the ink supply
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/603—Colour correction or control controlled by characteristics of the picture signal generator or the picture reproducer
    • H04N1/6033—Colour correction or control controlled by characteristics of the picture signal generator or the picture reproducer using test pattern analysis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2233/00—Arrangements for the operation of printing presses
    • B41P2233/50—Marks on printed material
    • B41P2233/51—Marks on printed material for colour quality control

Definitions

  • the present invention relates to color patches and printing systems.
  • a color bar control strip
  • a solid patch a color patch with a halftone dot area ratio of 100%
  • Figure 7 shows the printed matter printed by the printing machine.
  • a band-shaped color bar 2-2 is printed on the printed matter 2 in the margin area excluding the picture area 2-1.
  • the color bar 2-2 is a solid patch 2a1 prepared to measure the solid density of these four colors. , 2a2, 2a3, and 2a4.
  • Areas S1 to Sn correspond to the number of ink fountain keys in each color printing unit of the printing press. Further, the width of each of the areas S1, S2, to Sn corresponds to the width of the ink fountain key. Therefore, the total width of the color bar is determined by the number and width of the ink fountain keys.
  • the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to enable color management using color patches even if the size of halftone dots on printed matter changes. purpose.
  • the color patch according to the present invention is a color patch for color adjustment printed in the margin of a printed matter printed by a printing machine, and is an area of the color patch made up of a specified color to be reproduced on the printed matter. It has a white part inside.
  • the printing system includes a printing machine that can print on a supplied sheet, a measuring device that measures data for toning color patches printed on the margins of printed matter printed by the printing machine, and
  • the color patch is equipped with a controller that adjusts the amount of ink supplied to the printing machine for printing printed matter based on the color matching data measured by the device, and the color patch attempts to reproduce colors on the printed matter.
  • a white portion is provided within the area of the color patch made up of the specified color.
  • the white portion is provided within the area of the color patch, color management can be performed using the color patch even if the size of the halftone dot on the printed matter changes.
  • FIG. 1 is a configuration diagram showing the configuration of a color patch according to an embodiment of the present invention.
  • FIG. 2 is a configuration diagram showing the configuration of another color patch according to the embodiment of the present invention.
  • FIG. 3 is a configuration diagram showing the configuration of another color patch according to the embodiment of the present invention.
  • FIG. 4 is a configuration diagram showing the configuration of another color patch according to the embodiment of the present invention.
  • FIG. 5 is a configuration diagram showing the configuration of another color patch according to the embodiment of the present invention.
  • FIG. 6 is a configuration diagram showing the configuration of a printing system according to an embodiment of the present invention.
  • FIG. 7 is a plan view schematically showing a printed matter printed by the printing machine.
  • This color patch is a color patch for color adjustment that is provided on a printing plate for printing a printed matter and is printed on the margin of the printed matter by a printing machine.
  • the above-mentioned printing press is equipped with a measuring device that measures data for toning the color patches, and based on the measurement results of the measuring device, the color patch data is used to adjust the colors reproduced on the printed material.
  • This color patch constitutes a color bar that is prepared on a lithographic plate and printed by the lithographic printing machine in order to manage the color tone of the printing press using four color inks of cyan, magenta, yellow, and black, for example.
  • This color patch includes a white portion 102 within a region 101 of the color patch that is composed of a designated color that is to be reproduced on a printed matter.
  • a plurality of white portions 102 are arranged within a color patch region 101.
  • a plurality of color portions 103 are arranged and provided.
  • a white part 102 is arranged between adjacent colored parts 103.
  • the plurality of white portions 102 have a stripe pattern parallel to the conveyance direction of the printed material, and are arranged in a direction perpendicular to the conveyance direction.
  • color patches can be provided for each of four designated colors: cyan, magenta, yellow, and black.
  • cyan cyan
  • magenta magenta
  • yellow yellow
  • black black.
  • color patches are provided for each of orange, green, and violet in addition to cyan, magenta, yellow, and black. be able to. Note that it is not necessary to provide white portions in color patches of all colors.
  • the white portion 102a within the region 101a can be shaped like a lattice.
  • a plurality of white portions 102a are arranged, and a plurality of color portions 103a are arranged and provided in a color patch region 101a including a plurality of white portions 102a.
  • Each of the plurality of color portions 103a is rectangular (square) and arranged in a square arrangement.
  • each of the white portions 102b of the color patch can be ring-shaped within the region 101b.
  • This example includes a plurality of white portions 102b, and the plurality of ring-shaped white portions 102b are arranged concentrically.
  • a colored portion 103b is between adjacent white portions 102b.
  • a plurality of colored portions 103b are provided within the region 101b.
  • the white portion 102c of the color patch within the region 101c can have a spiral shape.
  • one spiral white portion 102c can be formed continuously and integrally.
  • the area between the spiral white portions 102c and the four outer corner areas of the spiral white portions 102c become colored portions 103c.
  • one color portion 103c is integrally formed within the region 101c.
  • the white portion 102d within the region 101d can have a meandering meandering shape.
  • the meander-shaped white portion 102d can be formed continuously and integrally.
  • the area other than the meandered white portion 102d becomes a colored portion 103d.
  • one color portion 103d is integrally formed within the region 101d.
  • This printing system includes a printing machine 151 that can print on a supplied sheet (for example, paper), and a measuring device that measures data for toning color patches printed on the margins of printed matter printed by the printing machine 151. 152.
  • this printing system includes a controller 153 that adjusts the amount of ink supplied for each color to be supplied to the printing press 151 for printing printed matter based on the color matching data measured by the measuring device 152.
  • the color patch includes a white portion within the area of the color patch that is composed of a designated color that is to be reproduced on a printed matter.
  • a color patch can include a plurality of white areas arranged within the area of the color patch.
  • the controller 153 has, for example, a normal printing result of the color patch according to the above-described embodiment measured by the measuring device 152 as a reference. The controller 153 performs control by comparing a provided standard with a result measured by the measuring device 152 during an actual printing operation (see Patent Document 1).
  • the density is the same as the sample, and theoretically the printed matter should have the same color.
  • the color tone may change due to other factors. For example, if the halftone dots on a printed matter become thicker, the area to be colored increases. Furthermore, if the halftone dots on a printed matter appear thick, the colors of the image appear darker to the human eye.
  • a measuring device measures the L * a * b * values of striped patches on the printed matter.
  • the area of the white portion in the striped patch decreases and the area of the colored portion relatively increases, resulting in a change in the L * a * b * value in the measurement result.
  • the color difference can be determined, and the determined value can be fed back to automatically adjust the color tone (lower the density).
  • the L * a * b * value is a commonly used color system, where L * represents lightness and a * b * represents chromaticity. a * indicates the red direction, -a * indicates the green direction, b * indicates the yellow direction, and -b * indicates the blue direction.
  • the color difference is the difference between colors, and is the value of the distance when connecting the points of the reference color and the measurement color on the L * a * b * color space.
  • the width of each area of the color bar shown in FIG. 7 is determined by the width of the ink fountain key, so if a printing press equipped with a 35 mm wide ink fountain key is used, the width of one color bar area will be 35 mm. Become. Therefore, the width of the patch is a value obtained by dividing one color bar area (35 mm) into eight patches, which are a total of patches for seven colors and one patch without color.
  • the height of the patch described above can be a value determined by the performance of the color tone management function consisting of the measuring device 152 and the controller 153, and can be a value between 3.0 and 5.0 mm, for example. I can do it.
  • the white portion is provided within the color patch area, color management can be performed using the color patch even if the size of the halftone dot on the printed matter changes. become.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Spectrometry And Color Measurement (AREA)
PCT/JP2023/014344 2022-04-07 2023-04-07 カラーパッチおよび印刷システム Ceased WO2023195534A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN202380040288.2A CN119136987A (zh) 2022-04-07 2023-04-07 色块和印刷系统
JP2024514323A JPWO2023195534A1 (https=) 2022-04-07 2023-04-07
CA3251310A CA3251310A1 (en) 2022-04-07 2023-04-07 COLOUR STAMP AND PRINTING SYSTEM
EP23784818.9A EP4506169A4 (en) 2022-04-07 2023-04-07 COLOUR STAMP AND PRINTING SYSTEM

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022063738 2022-04-07
JP2022-063738 2022-04-07

Publications (1)

Publication Number Publication Date
WO2023195534A1 true WO2023195534A1 (ja) 2023-10-12

Family

ID=88243020

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/014344 Ceased WO2023195534A1 (ja) 2022-04-07 2023-04-07 カラーパッチおよび印刷システム

Country Status (5)

Country Link
EP (1) EP4506169A4 (https=)
JP (1) JPWO2023195534A1 (https=)
CN (1) CN119136987A (https=)
CA (1) CA3251310A1 (https=)
WO (1) WO2023195534A1 (https=)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6178254B1 (en) * 1998-05-29 2001-01-23 Quad/Graphics, Inc. Method for elimination of effects of imperfections on color measurements
JP2002086689A (ja) * 2000-09-13 2002-03-26 Komori Corp 印刷機の色管理方法および装置
JP2003311917A (ja) * 2002-04-25 2003-11-06 Dainippon Screen Mfg Co Ltd 湿し水供給方法
JP5022682B2 (ja) 2006-11-30 2012-09-12 リョービ株式会社 カラー印刷機の印刷画像品質管理方法及び印刷画像品質管理装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3830121A1 (de) * 1988-09-05 1990-03-15 Felix Brunner Verfahren und vorrichtung zur einstellung eines vorgegebenen, durch ein wertepaar volltondichte/rasterpunktaenderung definierten druckstandards bei einem autotypischen druckvorgang
ATE281935T1 (de) * 1999-09-06 2004-11-15 Komori Printing Mach Color-management-verfahren und -vorrichtung für eine druckmaschine
JP4794173B2 (ja) * 2005-01-26 2011-10-19 大日本スクリーン製造株式会社 湿し水制御方法および印刷装置
JP2007104277A (ja) * 2005-10-04 2007-04-19 Fujifilm Corp 画像処理方法および画像形成装置
DE102007029211A1 (de) * 2007-06-25 2009-01-08 Heidelberger Druckmaschinen Ag Verbesserter Druckkontrollstreifen zur Farbmessung auf Bedruckstoffen
DE102008041429B4 (de) * 2008-08-21 2013-09-12 Koenig & Bauer Aktiengesellschaft Verfahren zur Prüfung zumindest eines in einem laufenden Druckprozess einer Druckmaschine ermittelten Messwertes auf seine Plausibilität
JP5978679B2 (ja) * 2012-03-16 2016-08-24 株式会社リコー 画像形成装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6178254B1 (en) * 1998-05-29 2001-01-23 Quad/Graphics, Inc. Method for elimination of effects of imperfections on color measurements
JP2002086689A (ja) * 2000-09-13 2002-03-26 Komori Corp 印刷機の色管理方法および装置
JP2003311917A (ja) * 2002-04-25 2003-11-06 Dainippon Screen Mfg Co Ltd 湿し水供給方法
JP5022682B2 (ja) 2006-11-30 2012-09-12 リョービ株式会社 カラー印刷機の印刷画像品質管理方法及び印刷画像品質管理装置

Also Published As

Publication number Publication date
EP4506169A1 (en) 2025-02-12
CA3251310A1 (en) 2025-07-10
CN119136987A (zh) 2024-12-13
EP4506169A4 (en) 2026-03-25
JPWO2023195534A1 (https=) 2023-10-12

Similar Documents

Publication Publication Date Title
Viggiano Modeling the color of multi-colored halftones
CN102729611B (zh) 用于印刷工艺的灰平衡修正的方法
EP2008818B1 (de) Verbesserter Druckkontrollstreifen zur Farbmessung auf Bedruckstoffen
US10659660B2 (en) Determination of tone value increase from a printed image
JP6058127B2 (ja) カラー印刷機又はカラー複写機の制御方法
JPH0522581B2 (https=)
EP1464493B1 (en) A printing press
JP2004229295A (ja) 色彩測定された参照枚葉紙を用いて、マッチングしていない印刷データを修正する方法
US6109183A (en) Measuring field block for detecting quality data in the multicolor printing of single editions
US5761327A (en) Group of measured fields for determining color data of a printed product
JPS61248748A (ja) オートタイプ式作動型の多色オフセツト印刷機により均等な印刷結果を達成する方法および単色ストリツプセツト
US7407242B2 (en) Derivation of multicolor text colorant limits from single color text colorant limit
WO2023195534A1 (ja) カラーパッチおよび印刷システム
JP2543320B2 (ja) 印刷コントロ―ルパッチ
US5730470A (en) Quality data collection in rotary offset printing of single editions
CN117203059B (zh) 用于在印刷机中进行颜色调节的方法
US7481165B2 (en) Method for controlling inking in an offset press
JP3586573B2 (ja) 印刷色調制御方法
JPS6091357A (ja) ハーフトーン制御領域を用いるカラー印刷の制御方法
JP3392745B2 (ja) 色調管理システム
JP4281172B2 (ja) 印刷方法
GB2251580A (en) Process for the control of printing ink application in the manufacture of multicolour print products.
US8561537B2 (en) Apparatus for the automatic determination of presetting values for inking zone setting elements of an inking unit of a press
SU1161414A1 (ru) Тест-объект дл контрол процесса офсетной печати
JP3038909B2 (ja) 面積率算出方法およびその装置ならびに印刷機

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23784818

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 18854439

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 2024514323

Country of ref document: JP

WWE Wipo information: entry into national phase

Ref document number: 202417084154

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 2023784818

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 202380040288.2

Country of ref document: CN

ENP Entry into the national phase

Ref document number: 2023784818

Country of ref document: EP

Effective date: 20241107