WO2022255320A1 - Color matching method in prepress process of printing - Google Patents

Color matching method in prepress process of printing Download PDF

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Publication number
WO2022255320A1
WO2022255320A1 PCT/JP2022/022010 JP2022022010W WO2022255320A1 WO 2022255320 A1 WO2022255320 A1 WO 2022255320A1 JP 2022022010 W JP2022022010 W JP 2022022010W WO 2022255320 A1 WO2022255320 A1 WO 2022255320A1
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color
orderer
printing
colorimetric data
procedure
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PCT/JP2022/022010
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French (fr)
Japanese (ja)
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良延 金岡
智章 早田
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株式会社カナオカホールディングス
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Publication of WO2022255320A1 publication Critical patent/WO2022255320A1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01Ink jet
    • B41J2/21Ink jet for multi-colour printing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/38Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
    • B41J29/393Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46Measurement of colour; Colour measuring devices, e.g. colorimeters
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/52Measurement of colour; Colour measuring devices, e.g. colorimeters using colour charts
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00General purpose image data processing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46Colour picture communication systems
    • H04N1/54Conversion of colour picture signals to a plurality of signals some of which represent particular mixed colours, e.g. for textile printing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46Colour picture communication systems
    • H04N1/56Processing of colour picture signals
    • H04N1/60Colour correction or control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46Colour picture communication systems
    • H04N1/56Processing of colour picture signals
    • H04N1/60Colour correction or control
    • H04N1/62Retouching, i.e. modification of isolated colours only or in isolated picture areas only

Definitions

  • the present invention relates to a color matching method in the prepress process of printing.
  • prepress In printing, a process called prepress is necessary to perform the pre-processing necessary to start printing on the printing device.
  • the client side processes the image of the print design manuscript provided by the orderer to create the print manuscript for the printing press.
  • color matching in solid portions of printed matter is important. This work is carried out by comparing the colors in the test print with the color sample given by the client as part of the print design manuscript.
  • FIG. 2 shows the procedure for coloring in the above case, Procedures for receiving color samples from the ordering party, A procedure for a worker to visually check a color sample and mix a plurality of color inks to create a special color ink, a procedure for an operator to determine the color of the spot color ink; A procedure for setting the special color ink on the printing machine that performs printing and performing color development, A procedure for the operator to judge the printing color, Finish coloring, - consisted of procedures.
  • FIG. 3 shows the procedure for color proofing after coloring in the above case.
  • Procedure for coloring multiple times The procedure for the orderer to perform color calibration and judge the color, The procedure for recreating the ink that has passed the color proofreading, setting it on the printing press to execute the printing, and then performing the final coloring, The procedure for the orderer to perform color calibration again and judge the color, Finish color proofreading, measure the finished product with a color difference meter, and manage ⁇ E. - consisted of procedures.
  • FIG. 4 shows the procedure for coloring in the above case.
  • Procedures for receiving color samples from the orderer for solid areas A procedure in which the worker visually checks the color chart printed by the worker's printing machine and selects multiple colors that match the color sample, Procedure for setting image data with multiple color schemes, Procedure for coloring multiple colors, A procedure for the operator to judge the printing color, The procedure for setting the image data to the reselected color scheme, The procedure for coloring the reselected multiple colors, It consisted of a procedure that the operator judges the printing color.
  • FIG. 5 shows the procedure for color proofing after coloring in the above case.
  • Procedure for coloring multiple times The procedure for printing the specified design (coloring in multiple colors on one side) on the printing machine that executes printing, The procedure for the orderer to perform color proofreading and determine the color for solid areas, The procedure for setting the color scheme that has passed color proofing to the entire image data, The procedure for coloring with the final color, The procedure for the orderer to perform color calibration again and judge the color, Finish color proofreading, measure the finished product with a color difference meter, and manage ⁇ E. - consisted of procedures.
  • the worker on the side of the contractor visually inspects the color chart printed by the printing machine on the side of the contractor and selects the color that matches the color sample of the ordering party, but this work is very complicated and requires time and effort. there were.
  • the selection of color schemes may differ depending on factors such as differences in color perception and physical condition of each worker. Therefore, it is not possible to present a specified design printed material that is almost color-matched to the color sample, and as a result, a specified design printed material that displays a plurality of similar colors is presented, which is extremely inefficient.
  • Inkjet printing is ideal for rapid on-demand printing of small lots, but the above-mentioned problems impair it, and there was a problem that the advantages of the angle could not be utilized.
  • the same picture is printed on multiple pages, so the prepress work is one picture for one order, whereas in the case of digital printing, there are many cases where several different pictures are printed on multiple pages. Be careful. There is a high possibility that it will not be profitable to receive orders for digital printing prepress work in the same way as conventional gravure printing.
  • the orderer creates color samples using a digital printing machine, so if the orderer uses the print data, it seems that the problem of color matching will be resolved.
  • the printing machine used by the orderer and the printing machine used by the contractor are different, the colors of the printed results do not match exactly even if they are based on the same data.
  • the present invention was created for the purpose of providing a color matching method for inkjet printing that solves the above problems.
  • the color matching method in the prepress process of printing according to the present invention is a color matching method in which the color presented by the orderer in the prepress process of the ordered printing is matched with the color of the printing result by the printing machine of the orderer.
  • a procedure for measuring the color presented by the color sample of the ordering party with a colorimeter and converting it into colorimetric data On the contractor side, a procedure for printing a color chart with the contractor's printing machine, measuring each color on the color chart with a colorimeter, and saving the colorimetric data in a color chart colorimetric data file;
  • a procedure for coloring the searched multiple approximate colors with the contractor's printing machine On the contractor side, a procedure for making the color selected by the ordering party from among the multiple similar colors that the ordering party should print,
  • the color chart prepared by the ordering party using a printing machine for printing color samples is measured by a calorimeter on the order receiving party side, and a procedure for producing colorimetric data.
  • the above colorimetric data is compared with the colorimetric data of the colors presented by the orderer's color sample, and the orderer's color sample finds out which color of the orderer's color chart the color scheme was decided on.
  • the orderer side stores the colorimetric data of the color chart created by the printing machine that prints the color sample on the side of the orderer and the printing machine used by the orderer. It is characterized in that it is saved as a profile on the contractor side.
  • the colorimeter uses three spectral sensitivities (S1( ⁇ ), S2( ⁇ ), linearly transformed equivalent to color functions such as CIE XYZ color matching functions). It is characterized by being a camera-type two-dimensional colorimeter with an optical filter having S3( ⁇ )).
  • the colorimetric data of the color presented by the color sample and the colorimetric data of the color selected by the orderer from among a plurality of approximate colors that have been color-coordinated are used.
  • the color matching method in the prepress process of printing according to the present invention does not generate the colors to be printed by the orderer by diverting the print data when the orderer creates a color sample with a digital printing machine on the orderer side.
  • the first feature is that the hard copy output by the ordering party's printing machine is specified as a color sample presented by the ordering party, and the color is measured with a colorimeter and converted into colorimetric data.
  • the second feature is that the hard copy output by the printing machine that executes printing at the contractor is specified as a color chart, and the color is measured with a colorimeter and converted into colorimetric data.
  • the approximate color is searched from the color chart colorimetry data file on the side of the contractor, and the colors are displayed on the printer of the contractor. Therefore, it is possible to solve the problem of the difference in color due to the difference in the printing machines of the contractor and the orderer.
  • a color chart prepared by the orderer using a printing machine that prints color samples is measured by a colorimeter on the side of the orderer to convert it into colorimetric data, and the side of the orderer receives the above
  • the orderer side uses the color measurement data of the color chart created by the printing machine that prints the color sample as a profile for each orderer and the printing machine used by the orderer side.
  • 4 is a flow chart showing the procedure of a color matching method in the prepress process of printing according to the invention of the present application.
  • 4 is a flow chart showing a procedure for coloring in gravure printing.
  • 4 is a flow chart showing a procedure for color calibration in gravure printing.
  • 4 is a flow chart showing a conventional example of a procedure for coloring in inkjet printing.
  • 4 is a flow chart showing the procedure of a conventional example of color proofing in inkjet printing.
  • Procedure S1 In the ordered printing, a color sample (solid portion here) is received from the orderer. This color sample is printed by the ordering party's printing machine.
  • Procedure S2 The color presented by the color sample at the contractor is measured with a colorimeter and quantified as colorimetric data.
  • a colorimeter manufactured by PaPaLab Co., Ltd., which is also known in Japanese Patent Application Laid-Open No. 2018-004423, is used as the colorimeter.
  • This colorimeter is a camera type with an optical filter having three spectral sensitivities (S1( ⁇ ), S2( ⁇ ), S3( ⁇ )) that are linearly transformed into equivalent color functions such as the CIE XYZ color matching functions. , and the sensitivity of the human eye can be quantified.
  • Procedure S3 Next, a standard color chart is printed by a printing machine that executes printing at the contractor.
  • an inkjet printer that is a DDCP is assumed as the printing machine.
  • Procedure S1-1 Receive the color chart created by the ordering party. This color chart was printed by the printing machine used by the orderer to print the color samples.
  • Procedure S2-3 The colorimetry data is stored in a profile data file as a profile associated with the orderer and the printing machine used by the orderer.
  • Procedures S6-S7 Regarding the color presented by the digitized color sample, we search for an approximate color by specifying the color difference from each color displayed on the digitized color chart from the color chart colorimetry data file, to colorize. At this time, referring to the profile data file of the ordering party and the printing press used by the ordering party, the above colorimetric data is compared with the colorimetric data of the color presented by the ordering party's color sample, and the ordering party's color The sample will be used as a reference for color matching by finding out which color in the color chart of the client has decided on the color scheme.
  • Procedure S8 It is determined whether or not the orderer is new. If the orderer is new, the process proceeds to step S10.If the order has been received before, the process proceeds to step S10 via step S9. In this case, even if it is the same corporation, it is judged whether it is new for each person in charge of ordering.
  • Procedure S10 A plurality of colors selected in step S7 are presented to the orderer.
  • Procedure S9 By referring to an orderer database that records the orderer's preference for color difference, the color matching the orderer's preference is preferentially presented at the time of presentation in step S10.
  • priority includes not only the case of ranking the colors to be presented, but also the presentation of only one kind of color.
  • Procedures S11-S12 The color selected by the orderer is used as the color to be printed, and the data is saved.

Abstract

In a prepress process of printing, in color matching that matches a color presented from a color sample of an orderer with a color of a printed result, the color presented by the orderer through the color sample is measured by means of a colorimeter and the measured color is digitized as colorimetric data, each color saddened to a color chart printed by a printer of an order receiver is also measured by means of the colorimeter in advance and the measured color is digitized as colorimetric data, a color similar to the presented color is searched by comparing the digits, and rapid and accurate color matching is enabled by allowing the orderer to make a selection.

Description

印刷のプリプレス工程における色合わせ方法Color matching method in the pre-press process of printing
 本願発明は、印刷のプリプレス工程における色合わせ方法に関する。 The present invention relates to a color matching method in the prepress process of printing.
 印刷においては、印刷装置における印刷を開始するにあたり必要となる前処理を行うプリプレスという工程が必要である。プリプレスにおいては発注者から提供された印刷デザインの原稿を受注者側において画像処理して印刷機用の印刷原稿を作成するが、その過程で試し印刷を行なって発注者を交えて印刷結果の校正を行なうことが不可欠でとなり、特に印刷物のベタ箇所における色合わせは重要であった。この作業は印刷デザインの原稿の一環として発注者から渡された色見本と試し印刷における色を比較することにより行なわれる。 In printing, a process called prepress is necessary to perform the pre-processing necessary to start printing on the printing device. In prepress, the client side processes the image of the print design manuscript provided by the orderer to create the print manuscript for the printing press. In particular, color matching in solid portions of printed matter is important. This work is carried out by comparing the colors in the test print with the color sample given by the client as part of the print design manuscript.
 グラビア印刷を例にとれば、印刷物のベタ箇所に関しては特色インキ( 色見本に近づけるべく複数の色インキを混合させたもの-特許文献1-) を使用し、微妙な色調整も含め受注者の目視で色彩を判断して色合せをし、印刷物は最終的に色差計の色差△E で数値管理している。 Taking gravure printing as an example, special color ink (a mixture of multiple color inks to approximate the color sample - Patent Document 1 -) is used for solid parts of the printed matter, and the contractor, including subtle color adjustments, is used. Colors are visually judged and matched, and the printed matter is numerically managed with the final color difference △E of a color difference meter.
 図2は前記の場合の色出しの手順を示すものであり、
 色見本を発注者から受け取る手順、
 色見本を作業者が目視し、複数の色インキを混合して特色インキを作成する手順、
 作業者が特色インキの色を判定する手順、
 印刷を実行する印刷機に前記特色インキをセットして色出しを行う手順、
 作業者が刷色を判定する手順、
 色出し終了、
  ~手順からなった。
FIG. 2 shows the procedure for coloring in the above case,
Procedures for receiving color samples from the ordering party,
A procedure for a worker to visually check a color sample and mix a plurality of color inks to create a special color ink,
a procedure for an operator to determine the color of the spot color ink;
A procedure for setting the special color ink on the printing machine that performs printing and performing color development,
A procedure for the operator to judge the printing color,
Finish coloring,
- consisted of procedures.
 図3は前記の場合の色出し後の色校正の手順を示すものであり、
 複数回色出しを行う手順、
 発注者が色校正を行い、色を判定する手順、
 色校正に合格したインキを作り直し、印刷を実行する印刷機にセットし、これにより最終色出しを行う手順、
 発注者が再度色校正を行い、色を判定する手順、
 色校正を終了し、終了品を色差計で測色し△E管理する、
 ~手順からなった。
FIG. 3 shows the procedure for color proofing after coloring in the above case.
Procedure for coloring multiple times,
The procedure for the orderer to perform color calibration and judge the color,
The procedure for recreating the ink that has passed the color proofreading, setting it on the printing press to execute the printing, and then performing the final coloring,
The procedure for the orderer to perform color calibration again and judge the color,
Finish color proofreading, measure the finished product with a color difference meter, and manage △E.
- consisted of procedures.
 一方、発注者から指示された色見本( 画像データになったデザイン) のカラー調子部分では、グラビア印刷もインクジェット印刷もカラーマネージメントさせた最適プロファイルから色校正作業が可能であるが、ベタ箇所に関しては、プロセス色KCMYの網点で色を再現させるインクジェット印刷においては、機械の構造上の色合わせに使用する特色インキのようなものは使用できなかった。 On the other hand, for the color tone part of the color sample (design made into image data) instructed by the client, it is possible to perform color proofing work from the optimum profile with color management for gravure printing and inkjet printing, but for solid parts , Inkjet printing, which reproduces colors with halftone dots of process colors KCMY, cannot use special color inks used for color matching due to the structure of the machine.
 その結果、インクジェット印刷においては予め用意したプロセス色KCMYの配色から作られたカラーチャートで見本に近い配色をいくつか選び色校正サンプルとして発注者に提出していた。 As a result, in the case of inkjet printing, several color schemes close to the sample were selected from the color chart created from the KCMY process color scheme prepared in advance, and submitted to the client as color proof samples.
 図4は前記の場合の色出しの手順を示すものであり、
 ベタ箇所に関し色見本を発注者から受け取る手順、
 作業者の印刷機で印刷したカラーチャートを作業者が目視し、色見本に合致した色を複数選ぶ手順、
 画像データを複数配色で設定する手順、
 複数色の色出しを行う手順、
 作業者が刷色を判定する手順、
 画像データを再選定した配色に設定する手順、
 再選定した複数色の色出しを行う手順、
 作業者が刷色を判定する
 ~手順からなった。
FIG. 4 shows the procedure for coloring in the above case.
Procedures for receiving color samples from the orderer for solid areas,
A procedure in which the worker visually checks the color chart printed by the worker's printing machine and selects multiple colors that match the color sample,
Procedure for setting image data with multiple color schemes,
Procedure for coloring multiple colors,
A procedure for the operator to judge the printing color,
The procedure for setting the image data to the reselected color scheme,
The procedure for coloring the reselected multiple colors,
It consisted of a procedure that the operator judges the printing color.
 図5は前記の場合の色出し後の色校正の手順を示すものであり、
 複数回色出しを行う手順、
 印刷を実行する印刷機で指定デザイン(1面に複数色で色出しする)を印刷する手順、
 ベタ箇所に関し発注者が色校正を行い、色を判定する手順、
 色校正に合格した配色を画像データ全面に設定する手順、
 最終色で色出しする手順、
 発注者が再度色校正を行い、色を判定する手順、
 色校正を終了し、終了品を色差計で測色し△E管理する、
 ~手順からなった。
FIG. 5 shows the procedure for color proofing after coloring in the above case.
Procedure for coloring multiple times,
The procedure for printing the specified design (coloring in multiple colors on one side) on the printing machine that executes printing,
The procedure for the orderer to perform color proofreading and determine the color for solid areas,
The procedure for setting the color scheme that has passed color proofing to the entire image data,
The procedure for coloring with the final color,
The procedure for the orderer to perform color calibration again and judge the color,
Finish color proofreading, measure the finished product with a color difference meter, and manage △E.
- consisted of procedures.
日本国特許公開公報平成11- 296664Japanese Patent Publication No. 1999- 296664
 前記の場合、受注者側の印刷機で印刷したカラーチャートを受注者側の作業者が目視し、発注者の色見本に合致した色を選ぶが、この作業は大変煩雑で手間を要するものであった。一方、作業者ごとの色彩感覚の違いや、体調などの要因により配色の選定が異なることもある。そのため色見本に対し色彩的にほぼ合致した指定デザイン印刷物を提示することができず、その結果、複数の近似色を表示した指定デザイン印刷物を提示することになり、極めて非効率的であった。 In the above case, the worker on the side of the contractor visually inspects the color chart printed by the printing machine on the side of the contractor and selects the color that matches the color sample of the ordering party, but this work is very complicated and requires time and effort. there were. On the other hand, the selection of color schemes may differ depending on factors such as differences in color perception and physical condition of each worker. Therefore, it is not possible to present a specified design printed material that is almost color-matched to the color sample, and as a result, a specified design printed material that displays a plurality of similar colors is presented, which is extremely inefficient.
 ところで、印刷業界では印刷の発注に際して、印刷立会い( 発注者が受注者側の印刷工場に赴き、印刷する印刷物で最終判断) をするのが通例となっている。インクジェットで印刷する場合は、事前に複数の配色パターンを印刷しておいて発注者が立合いをして最終の判断をする必要がある。しかし昨今のコロナ禍では直接発注者が印刷工場に来られなくなっているので、印刷した刷物を郵便などで発注者に送付し判断してもらう必要が生ずる。特にベタ箇所において前記の問題があるインクジェット印刷の場合は色校正回数が多くなり従来よりも郵送回数も増えてかなり日数がかかり発注者の短納期の要求に応えられない問題があった。 By the way, in the printing industry, when ordering printing, it is customary for the orderer to attend the printing (the ordering party goes to the printing factory on the orderer's side and makes the final decision based on the printed material). In the case of inkjet printing, it is necessary to print multiple color scheme patterns in advance and to make the final decision in the presence of the orderer. However, due to the recent corona disaster, the orderer cannot come directly to the printing factory, so it is necessary to send the printed matter to the orderer by mail or other means and have them make a decision. Especially in the case of inkjet printing, which has the above-mentioned problem in solid portions, the number of times of color proofreading increases and the number of times of mailing also increases, which takes a considerable number of days, and there is a problem that it is not possible to meet the customer's request for a short delivery date.
 インクジェット印刷は小ロットのオンデマンド印刷を迅速に行うのに最適であるが、前記の問題によりそれが損なわれることとなり、折角の利点が生かされない問題があった。特にグラビア印刷の場合は同一の絵柄が多面付になるのでプリプレス作業が受注1点につき絵柄1点であるのに対し、デジタル印刷の場合は数種類の異なる絵柄を多面付するケースが多くなることに注意しておかなければならない。従来のグラビア印刷の感覚でデジタル印刷のプリプレス作業を受注すると採算が取れない可能性が高くなる。 Inkjet printing is ideal for rapid on-demand printing of small lots, but the above-mentioned problems impair it, and there was a problem that the advantages of the angle could not be utilized. In particular, in the case of gravure printing, the same picture is printed on multiple pages, so the prepress work is one picture for one order, whereas in the case of digital printing, there are many cases where several different pictures are printed on multiple pages. Be careful. There is a high possibility that it will not be profitable to receive orders for digital printing prepress work in the same way as conventional gravure printing.
 前記の場合、発注者はデジタル印刷機で色見本を作成しているのであるから、その印刷データを受注者が使用すれば色合わせの問題は解消するように思われる。しかしながら、発注者が使用している印刷機と受注者が使用している印刷機は異なるので、同じデータに基づくものであっても出力される印刷結果の色が正確に一致することはない。 In the above case, the orderer creates color samples using a digital printing machine, so if the orderer uses the print data, it seems that the problem of color matching will be resolved. However, since the printing machine used by the orderer and the printing machine used by the contractor are different, the colors of the printed results do not match exactly even if they are based on the same data.
 本願発明は前記の問題を解消したインクジェット印刷の色合わせ方法を提供することを目的として創作されたものである。 The present invention was created for the purpose of providing a color matching method for inkjet printing that solves the above problems.
 すなわち、本願発明の印刷のプリプレス工程における色合わせ方法は、受注した印刷のプリプレス工程における、発注者から色見本により提示された色と受注者の印刷機による印刷結果の色を合致させる色合わせにおいて、
 受注者側において、発注者の色見本により提示された色を色彩計で測色して測色データ化する手順、
 受注者側において、受注者の印刷機でカラーチャートを印刷し、カラーチャートに色出しされた各色を色彩計で測色し、測色データをカラーチャート測色データファイルに保存する手順、
 受注者側において、発注者の色見本により提示された色の測色データを用いて、近似色をカラーチャート測色データファイルから検索する手順、
 受注者側において、検索した複数の近似色を受注者の印刷機で色出しする手順、
 受注者側において、色出しされた複数の近似色中から発注者が選択した色をもって受注者が印刷すべき色とする手順、
  を有することを特徴とする。
That is, the color matching method in the prepress process of printing according to the present invention is a color matching method in which the color presented by the orderer in the prepress process of the ordered printing is matched with the color of the printing result by the printing machine of the orderer. ,
On the side of the contractor, a procedure for measuring the color presented by the color sample of the ordering party with a colorimeter and converting it into colorimetric data;
On the contractor side, a procedure for printing a color chart with the contractor's printing machine, measuring each color on the color chart with a colorimeter, and saving the colorimetric data in a color chart colorimetric data file;
A procedure for searching for an approximate color from the color chart colorimetric data file using the colorimetric data of the color presented by the color sample of the orderer on the side of the orderer,
On the contractor's side, a procedure for coloring the searched multiple approximate colors with the contractor's printing machine,
On the contractor side, a procedure for making the color selected by the ordering party from among the multiple similar colors that the ordering party should print,
characterized by having
 また、請求項2記載の発明は前記の色合わせ方法において、色見本を印刷する印刷機により発注者が作成したカラーチャートを、受注者側において色彩計で測色して測色データ化する手順、
 受注者側において、上記の測色データを発注者の色見本により提示された色の測色データと比較し、発注者の色見本は発注者のカラーチャートのどの色から配色を決めたかを探し出す手順、
 を有することを特徴とする。
Further, in the color matching method described above, the color chart prepared by the ordering party using a printing machine for printing color samples is measured by a calorimeter on the order receiving party side, and a procedure for producing colorimetric data. ,
On the orderer side, the above colorimetric data is compared with the colorimetric data of the colors presented by the orderer's color sample, and the orderer's color sample finds out which color of the orderer's color chart the color scheme was decided on. procedure,
characterized by having
 また、請求項3記載の発明は前記の色合わせ方法において、発注者側において、色見本を印刷する印刷機により作成したカラーチャートの測色データを発注者および発注者が使用した印刷機別のプロファイルとして受注者側において保存することを特徴とする。 Further, in the color matching method described above, the orderer side stores the colorimetric data of the color chart created by the printing machine that prints the color sample on the side of the orderer and the printing machine used by the orderer. It is characterized in that it is saved as a profile on the contractor side.
 また、請求項4記載の発明は前記の色合わせ方法において、色彩計はCIEのXYZ等色関数など色関数と等価に線形変換された三つの分光感度(S1( λ) 、S2( λ) 、S3( λ) )を有する光学フィルターを持つカメラ式2次元色彩計であることを特徴とする。 In the color matching method according to claim 4, the colorimeter uses three spectral sensitivities (S1(λ), S2(λ), linearly transformed equivalent to color functions such as CIE XYZ color matching functions). It is characterized by being a camera-type two-dimensional colorimeter with an optical filter having S3(λ)).
 また、請求項5、6記載の発明は前記の色合わせ方法において、色見本により提示された色の測色データ、色出しされた複数の近似色から発注者が選択した色の測色データを、発注者と関連付けて発注者データベースに記録するとともに、色差に関する発注者の嗜好傾向を分析し、色出しされた複数の近似色を発注者に提示するに際し、前記データベースに記録された色差に関する発注者の嗜好傾向を参照して発注者の嗜好傾向に合致した色を優先して提示することを特徴とする。 In the above-described color matching method, the colorimetric data of the color presented by the color sample and the colorimetric data of the color selected by the orderer from among a plurality of approximate colors that have been color-coordinated are used. , is recorded in the orderer database in association with the orderer, and when the orderer's preference trends regarding color difference are analyzed and a plurality of approximate colors that have been colored are presented to the orderer, the order regarding the color difference recorded in the database It is characterized by referring to the preference tendency of the orderer and preferentially presenting a color matching the preference tendency of the orderer.
 本願発明の印刷のプリプレス工程における色合わせ方法は、発注者がデジタル印刷機で色見本を作成した際の印刷データを受注者側において流用して受注者が印刷すべき色を生成するのではなく、発注者が発注者側の印刷機で出力したハードコピーを発注者から提示された色見本として特定した上で、それを色彩計で測色して測色データ化したことを第一の特徴とする。 The color matching method in the prepress process of printing according to the present invention does not generate the colors to be printed by the orderer by diverting the print data when the orderer creates a color sample with a digital printing machine on the orderer side. The first feature is that the hard copy output by the ordering party's printing machine is specified as a color sample presented by the ordering party, and the color is measured with a colorimeter and converted into colorimetric data. and
 次に、受注者において印刷を実行する印刷機で出力したハードコピーをカラーチャートとして特定した上で、それを色彩計で測色して測色データ化したことを第二の特徴とする。 Next, the second feature is that the hard copy output by the printing machine that executes printing at the contractor is specified as a color chart, and the color is measured with a colorimeter and converted into colorimetric data.
 そして、受注者側において、発注者の色見本により提示された色の測色データを用いて、近似色を受注者側のカラーチャート測色データファイルから検索して、受注者の印刷機で色出しするので、受注者と発注者の印刷機の違いによる双方の色彩の違いの問題を解消することができる。 Then, on the contractor side, using the colorimetry data of the color presented by the color sample of the orderer, the approximate color is searched from the color chart colorimetry data file on the side of the contractor, and the colors are displayed on the printer of the contractor. Therefore, it is possible to solve the problem of the difference in color due to the difference in the printing machines of the contractor and the orderer.
 一方、以上の手順は人手を介さずにITを活用した機械化できるので人手が介在しないことにより、作業速度が飛躍的に向上するだけではなく、作業者個人の色彩感覚などの不確定要素を排除し、正確な色合わせを行なうことが可能となる。 On the other hand, since the above procedures can be mechanized using IT without human intervention, not only is the work speed dramatically improved, but also the individual worker's sense of color and other uncertain factors are eliminated. This makes it possible to perform accurate color matching.
 また、請求項2記載の発明のように色見本を印刷する印刷機により発注者が作成したカラーチャートを、受注者側において色彩計で測色して測色データ化し、受注者側において、上記の測色データを発注者の色見本により提示された色の測色データと比較し、発注者の色見本は発注者のカラーチャートのどの色から配色を決めたかを探し出す場合は、周辺の色も把握できることからより正確な色合わせを行なうことが可能となる。 In addition, as in the second aspect of the invention, a color chart prepared by the orderer using a printing machine that prints color samples is measured by a colorimeter on the side of the orderer to convert it into colorimetric data, and the side of the orderer receives the above When comparing the colorimetric data of the color with the colorimetric data of the color presented by the color sample of the orderer, and finding out which color of the color chart of the orderer decided the color scheme from the color sample of the orderer, the surrounding colors can also be grasped, it becomes possible to perform more accurate color matching.
 さらに、請求項3記載の発明のように発注者側において、色見本を印刷する印刷機により作成したカラーチャートの測色データを発注者および発注者が使用した印刷機別のプロファイルとして受注者側において保存する場合は前記の作業をより迅速に行なうことが可能となる。 Furthermore, as in the third aspect of the invention, the orderer side uses the color measurement data of the color chart created by the printing machine that prints the color sample as a profile for each orderer and the printing machine used by the orderer side. When saving in , it is possible to perform the above operations more quickly.
 また、請求項4記載の発明のように、CIEのXYZ等色関数など色関数と等価に線形変換された三つの分光感度(S1( λ) 、S2( λ) 、S3( λ) )を有する光学フィルターを持つカメラ式2次元色彩計で測色する場合は、人間の眼の感度を数値化することができ発注者の要求に合った色を提示することが可能となる。 In addition, as in the invention of claim 4, it has three spectral sensitivities (S1(λ), S2(λ), S3(λ)) linearly transformed equivalently to color functions such as the CIE XYZ color matching function. When colorimetry is performed with a camera-type two-dimensional colorimeter having an optical filter, it is possible to quantify the sensitivity of the human eye and present a color that meets the request of the orderer.
 一方、最終的に色判断する発注者は人間である以上、色の選定に関し嗜好や癖がある。これは受注者と発注者の印刷機の違いとは異なる問題である。これに関し、請求項5、6記載の発明のように、色見本により提示された色の測色データ、色出しされた複数の近似色から発注者が選択した色の測色データを、発注者と関連付けて発注者データベースに記録するとともに、色差に関する発注者の嗜好傾向を分析し、色出しされた複数の近似色を発注者に提示するに際し、前記データベースに記録された色差に関する発注者の嗜好傾向を参照すれば、発注者の嗜好傾向に合致した色を知ることができ、その色を優先して提示することによりやり直しの少ない色合わせを迅速に行なうことが可能となる。 On the other hand, as long as the person ordering the final color is a human being, they have preferences and habits regarding the selection of colors. This is a different issue from the difference between the printing machines of the contractor and the ordering party. In this regard, as in claims 5 and 6, the colorimetric data of the colors presented by the color sample and the colorimetric data of the colors selected by the orderer from a plurality of approximate colors that have been color-coordinated are sent to the orderer are recorded in the orderer database in association with the color difference, and the orderer's preference regarding the color difference is analyzed, and when presenting the plurality of approximate colors that have been colored to the orderer, the orderer's preference regarding the color difference recorded in the database By referring to the trend, it is possible to know the color that matches the preference of the orderer.
本願発明の印刷のプリプレス工程における色合わせ方法の手順を示すフローチャート。4 is a flow chart showing the procedure of a color matching method in the prepress process of printing according to the invention of the present application. グラビア印刷における色出しの手順を示すフローチャート。4 is a flow chart showing a procedure for coloring in gravure printing. グラビア印刷における色校正の手順を示すフローチャート。4 is a flow chart showing a procedure for color calibration in gravure printing. インクジェット印刷における色出しの従来例の手順を示すフローチャート。4 is a flow chart showing a conventional example of a procedure for coloring in inkjet printing. インクジェット印刷における色校正の従来例の手順を示すフローチャート。4 is a flow chart showing the procedure of a conventional example of color proofing in inkjet printing.
 以下、本願発明の具体的実施例を請求項5記載の発明を例にとって、図1のフローチャートに沿って説明する。 Hereinafter, a specific embodiment of the present invention will be described by taking the invention described in claim 5 as an example and following the flowchart in FIG.
 手順S1
 受注した印刷において、発注者から色見本(ここではベタ部分)、を受領する。この色見本は発注者の印刷機で印刷したものである。
Procedure S1
In the ordered printing, a color sample (solid portion here) is received from the orderer. This color sample is printed by the ordering party's printing machine.
 手順S2
 受注者において色見本により提示された色を色彩計で測色して測色データとして数値化する。この実施例では色彩計として特開2018-004423などでも公知の有限会社パパラボ製の2次元色彩計を用いる。この色彩計はCIEのXYZ等色関数など色関数と等価に線形変換された三つの分光感度(S1( λ) 、S2( λ) 、S3( λ) )を有する光学フィルターを持つカメラ式のものであり、人間の眼の感度を数値化できる。
Procedure S2
The color presented by the color sample at the contractor is measured with a colorimeter and quantified as colorimetric data. In this embodiment, a two-dimensional colorimeter manufactured by PaPaLab Co., Ltd., which is also known in Japanese Patent Application Laid-Open No. 2018-004423, is used as the colorimeter. This colorimeter is a camera type with an optical filter having three spectral sensitivities (S1(λ), S2(λ), S3(λ)) that are linearly transformed into equivalent color functions such as the CIE XYZ color matching functions. , and the sensitivity of the human eye can be quantified.
 手順S3
 次に、受注者において印刷を実行する印刷機で標準カラーチャートを印刷する。ここでは、上記印刷機としてDDCPであるインクジェップリンターを想定している。
Procedure S3
Next, a standard color chart is printed by a printing machine that executes printing at the contractor. Here, an inkjet printer that is a DDCP is assumed as the printing machine.
 手順S4~S5
 標準カラーチャートに色出しされた各色を色彩計で測色して測色データとして数値化し、測色データをカラーチャート測色データファイルに保存する。
Procedures S4-S5
Each color developed on the standard color chart is measured by a colorimeter, quantified as colorimetric data, and the colorimetric data is saved in a color chart colorimetric data file.
 手順S1-1
 発注者が作成したカラーチャートを受領する。このカラーチャートは発注者が色見本を印刷するのに使用した印刷機で印刷したものである。
Procedure S1-1
Receive the color chart created by the ordering party. This color chart was printed by the printing machine used by the orderer to print the color samples.
 手順S2-2
 発注者が作成したカラーチャートに色出しされた各色を測色して測色データとして数値化する。ここでは受注者が使用しているDDCPのスキャナーで読み込んだ後、測色データとして数値化している。
Procedure S2-2
Each color is measured on the color chart prepared by the orderer and quantified as colorimetric data. In this case, after being read by the DDCP scanner used by the contractor, it is quantified as colorimetric data.
 手順S2-3
 前記測色データを発注者および発注者が使用した印刷機と紐付けたプロファイルとしてプロファイルデータファイルに保存する。
Procedure S2-3
The colorimetry data is stored in a profile data file as a profile associated with the orderer and the printing machine used by the orderer.
 手順S6~S7
 数値化された色見本により提示された色に関し、カラーチャート測色データファイルから数値化されたカラーチャートに色出しされた各色中から色差を指定して近似色を検索し、受注者の印刷機で色出しをする。この際に発注者および発注者が使用した印刷機のプロファイルデータファイルを参照して、上記の測色データを発注者の色見本により提示された色の測色データと比較し、発注者の色見本は発注者のカラーチャートのどの色から配色を決めたかを探し出し色出しの参考にする。
Procedures S6-S7
Regarding the color presented by the digitized color sample, we search for an approximate color by specifying the color difference from each color displayed on the digitized color chart from the color chart colorimetry data file, to colorize. At this time, referring to the profile data file of the ordering party and the printing press used by the ordering party, the above colorimetric data is compared with the colorimetric data of the color presented by the ordering party's color sample, and the ordering party's color The sample will be used as a reference for color matching by finding out which color in the color chart of the client has decided on the color scheme.
 手順S8
 発注者が新規かどうかを判断し、新規の場合は手順S10に、以前にも受注している場合は手順S9を介して手順S10に進む。この場合、同一の法人であっても発注の担当者別に新規であるか否かを判断する。
Procedure S8
It is determined whether or not the orderer is new.If the orderer is new, the process proceeds to step S10.If the order has been received before, the process proceeds to step S10 via step S9. In this case, even if it is the same corporation, it is judged whether it is new for each person in charge of ordering.
 手順S10
 手順S7で色出しした複数の色を発注者に提示する。
Procedure S10
A plurality of colors selected in step S7 are presented to the orderer.
 手順S9
 色差に関する発注者の嗜好傾向を記録してある発注者データベースを参照し、手順S10の提示に際して、発注者の嗜好傾向に合致した色を優先して提示する。ここに優先とは提示する色に順位を付ける場合の他、ただ一種の色のみを提示することを含む。
Procedure S9
By referring to an orderer database that records the orderer's preference for color difference, the color matching the orderer's preference is preferentially presented at the time of presentation in step S10. Here, priority includes not only the case of ranking the colors to be presented, but also the presentation of only one kind of color.
 手順S11~S12
 発注者が選択した色をもって印刷すべき色とし、データを保存する。
Procedures S11-S12
The color selected by the orderer is used as the color to be printed, and the data is saved.
 手順S12~S13
 色見本により提示された色の測色データ、色出しされた複数の近似色から発注者が選択した色の測色データを、色差に関する発注者の嗜好傾向を分析して、発注者と関連付けて発注者データベースに記録する。
Procedures S12-S13
Colorimetric data of colors presented by color samples and colorimetric data of colors selected by the orderer from multiple approximate colors that have been color-matched are analyzed for the orderer's preference trends regarding color difference, and are associated with the orderer. Record in the ordering party database.
  S1~S13 フローチャートにおける手順   S1 to S13 Procedures in the flowchart

Claims (6)

  1. 受注した印刷のプリプレス工程における、発注者から色見本により提示された色と受注者の印刷機による印刷結果の色を合致させる色合わせにおいて、
     受注者側において、発注者の色見本により提示された色を色彩計で測色して測色データ化する手順、
     受注者側において、受注者の印刷機でカラーチャートを印刷し、カラーチャートに色出しされた各色を色彩計で測色し、測色データをカラーチャート測色データファイルに保存する手順、
     受注者側において、発注者の色見本により提示された色の測色データを用いて、近似色をカラーチャート測色データファイルから検索する手順、
     受注者側において、検索した複数の近似色を受注者の印刷機で色出しする手順、
     受注者側において、色出しされた複数の近似色中から発注者が選択した色をもって受注者が印刷すべき色とする手順、
      を有することを特徴とする印刷のプリプレス工程における色合わせ方法。
    In the pre-press process of ordered printing, color matching to match the colors presented by the orderer in the color sample with the colors printed by the client's printing machine,
    On the side of the contractor, a procedure for measuring the color presented by the color sample of the ordering party with a colorimeter and converting it into colorimetric data;
    A procedure for the contractor to print a color chart on the contractor's printing machine, measure each color printed on the color chart with a colorimeter, and save the colorimetric data in a color chart colorimetric data file.
    A procedure for searching for an approximate color from the color chart colorimetric data file using the colorimetric data of the color presented by the color sample of the orderer on the side of the orderer,
    On the contractor's side, a procedure for coloring the searched multiple approximate colors with the contractor's printing machine,
    On the contractor side, a procedure for making the color selected by the ordering party from among the multiple similar colors that the ordering party should print,
    A color matching method in a prepress process of printing, characterized by comprising:
  2. 色見本を印刷する印刷機により発注者が作成したカラーチャートを、受注者側において色彩計で測色して測色データ化する手順、
     受注者側において、上記の測色データを発注者の色見本により提示された色の測色データと比較し、発注者の色見本は発注者のカラーチャートのどの色から配色を決めたかを探し出す手順、
     を有する請求項1記載の印刷のプリプレス工程における色合わせ方法。
    A procedure for measuring the color chart created by the orderer with a printing machine that prints color samples with a colorimeter on the orderer side and converting it into colorimetric data.
    On the orderer side, the above colorimetric data is compared with the colorimetric data of the colors presented by the orderer's color sample, and the orderer's color sample finds out which color of the orderer's color chart the color scheme was decided on. procedure,
    2. The color matching method in the prepress process of printing according to claim 1, comprising:
  3. 発注者側において、色見本を印刷する印刷機により作成したカラーチャートの測色データを発注者および発注者が使用した印刷機別のプロファイルとして受注者側において保存する請求項2記載の印刷のプリプレス工程における色合わせ方法。 3. The printing prepress according to claim 2, wherein the orderer saves the colorimetric data of the color chart created by the printing machine that prints the color sample as a profile for each orderer and the printing machine used by the orderer. Color matching method in the process.
  4. 色彩計はCIEのXYZ等色関数など色関数と等価に線形変換された三つの分光感度(S1( λ) 、S2( λ) 、S3( λ) )を有する光学フィルターを持つカメラ式2次元色彩計である請求項1から3のいずれかに記載の印刷のプリプレス工程における色合わせ方法。 The colorimeter is a camera-type two-dimensional colorimeter with an optical filter having three spectral sensitivities (S1(λ), S2(λ), S3(λ)) linearly transformed into equivalent color functions such as the CIE XYZ color matching functions. 4. The color matching method in the prepress process of printing according to any one of claims 1 to 3, which is a total.
  5. 色見本により提示された色の測色データ、色出しされた複数の近似色から発注者が選択した色の測色データを、発注者と関連付けて発注者データベースに記録するとともに、色差に関する発注者の嗜好傾向を分析し、色出しされた複数の近似色を発注者に提示するに際し、前記データベースに記録された色差に関する発注者の嗜好傾向を参照して発注者の嗜好傾向に合致した色を優先して提示する請求項1から3のいずれかに記載の印刷のプリプレス工程における色合わせ方法。                  The colorimetric data of the color presented by the color sample and the colorimetric data of the color selected by the orderer from multiple approximate colors that have been colored are recorded in the orderer database in association with the orderer, and the orderer regarding color difference When presenting a plurality of similar colors to the orderer by analyzing the preference tendency of the color, the orderer's preference tendency regarding the color difference recorded in the database is referred to and the color that matches the orderer's preference tendency is selected. 4. The color matching method in the prepress process of printing according to any one of claims 1 to 3, which is preferentially presented.                 
  6. 色見本により提示された色の測色データ、色出しされた複数の近似色から発注者が選択した色の測色データを、発注者と関連付けて発注者データベースに記録するとともに、色差に関する発注者の嗜好傾向を分析し、色出しされた複数の近似色を発注者に提示するに際し、前記データベースに記録された色差に関する発注者の嗜好傾向を参照して発注者の嗜好傾向に合致した色を優先して提示する請求項4記載の印刷のプリプレス工程における色合わせ方法。
     
    The colorimetric data of the color presented by the color sample and the colorimetric data of the color selected by the orderer from multiple approximate colors that have been colored are recorded in the orderer database in association with the orderer, and the orderer regarding color difference When presenting a plurality of similar colors to the orderer by analyzing the preference tendency of the color, the orderer's preference tendency regarding the color difference recorded in the database is referred to and the color that matches the orderer's preference tendency is selected. 5. The color matching method in the prepress process of printing according to claim 4, which is preferentially presented.
PCT/JP2022/022010 2021-05-31 2022-05-30 Color matching method in prepress process of printing WO2022255320A1 (en)

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JP2007042228A (en) * 2005-08-04 2007-02-15 Noritsu Koki Co Ltd Software for image appreciation
WO2018004005A1 (en) * 2016-06-30 2018-01-04 株式会社プロスパークリエイティブ Color conversion system, color conversion device, and color conversion method
JP2018004423A (en) * 2016-06-30 2018-01-11 有限会社パパラボ Color determination device and color determination method
JP2020101895A (en) * 2018-12-20 2020-07-02 キヤノン株式会社 Information processing apparatus, controlling method for information processing apparatus, and program

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060098217A1 (en) * 2004-11-10 2006-05-11 Printing Technology Research Institute Simulation of profile gives prediction of specific colors
JP2007042228A (en) * 2005-08-04 2007-02-15 Noritsu Koki Co Ltd Software for image appreciation
WO2018004005A1 (en) * 2016-06-30 2018-01-04 株式会社プロスパークリエイティブ Color conversion system, color conversion device, and color conversion method
JP2018004423A (en) * 2016-06-30 2018-01-11 有限会社パパラボ Color determination device and color determination method
JP2020101895A (en) * 2018-12-20 2020-07-02 キヤノン株式会社 Information processing apparatus, controlling method for information processing apparatus, and program

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