WO2011072425A1 - 多原色印刷质量控制方法 - Google Patents

多原色印刷质量控制方法 Download PDF

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Publication number
WO2011072425A1
WO2011072425A1 PCT/CN2009/001490 CN2009001490W WO2011072425A1 WO 2011072425 A1 WO2011072425 A1 WO 2011072425A1 CN 2009001490 W CN2009001490 W CN 2009001490W WO 2011072425 A1 WO2011072425 A1 WO 2011072425A1
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WO
WIPO (PCT)
Prior art keywords
color
primary
primary colors
quality control
control method
Prior art date
Application number
PCT/CN2009/001490
Other languages
English (en)
French (fr)
Inventor
任德坚
Original Assignee
永经堂印刷有限公司
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
Priority to RU2012130233/12A priority Critical patent/RU2552503C2/ru
Priority to BR112012014440-5A priority patent/BR112012014440B1/pt
Application filed by 永经堂印刷有限公司 filed Critical 永经堂印刷有限公司
Priority to AU2009356942A priority patent/AU2009356942A1/en
Priority to MX2012007012A priority patent/MX2012007012A/es
Priority to SG2012043188A priority patent/SG181655A1/en
Priority to NZ601170A priority patent/NZ601170A/en
Priority to KR1020127018639A priority patent/KR101587891B1/ko
Priority to PCT/CN2009/001490 priority patent/WO2011072425A1/zh
Priority to JP2012543436A priority patent/JP5547299B2/ja
Priority to EP09852163.6A priority patent/EP2495105B1/en
Priority to CA2784206A priority patent/CA2784206C/en
Priority to CN201010285334XA priority patent/CN102120384B/zh
Publication of WO2011072425A1 publication Critical patent/WO2011072425A1/zh
Priority to US13/237,989 priority patent/US20120008170A1/en
Priority to IL220314A priority patent/IL220314A/en
Priority to ZA2012/05198A priority patent/ZA201205198B/en

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Classifications

    • 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
    • H04N1/6016Conversion to subtractive colour signals
    • H04N1/6022Generating a fourth subtractive colour signal, e.g. under colour removal, black masking
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F3/00Colour separation; Correction of tonal value
    • 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
    • H04N1/603Colour correction or control controlled by characteristics of the picture signal generator or the picture reproducer
    • H04N1/6033Colour correction or control controlled by characteristics of the picture signal generator or the picture reproducer using test pattern analysis

Definitions

  • the present invention relates to a printing quality control method, and more particularly to a multi-primary printing quality control method. Background technique
  • the color theory is explained in the general textbooks of the primary school level.
  • the color circle is a commonly used teaching tool to recognize color theory.
  • natural chromatography can be combined with six colors of magenta (M), red (R), yellow (Y), green (G), cyan (C), and blue (B).
  • M magenta
  • R red
  • Y yellow
  • G green
  • C cyan
  • B blue
  • the main colors of magenta, yellow and green are formed by subtractive color method, which are suitable for various colors of ink, paint and other products; red, green and blue secondary primary colors are formed by additive color method, suitable for electro-optics Used in TV, scanners and other products.
  • Multi-color separation and energy supply the birth of electronic filters, as long as the color frequency of the desired primary color can be accurately input.
  • the color selection can be beyond the range of the traditional CMY main color segment, so the digital printing device can use up to 1 2 primary colors and secondary colors to simulate the true color print image for visual viewing.
  • This multi-color color separation can also be used for "high fidelity" printing. Based on ''highfidelity' printing can compensate for the lack of CMY main primary colors, so add accurate secondary primary colors of red, green, blue; or three primary colors of green + red, yellow + green, magenta + blue, etc.
  • the result of the image will be more realistic than the color gamut composed of the main primary color area CMY, which can reach the full-color real-world image simulation effect, which is the same as what we see and watch every day.
  • the traditional secondary and tertiary primary colors are simulated, such as the use of spectral data to produce accurate secondary and tertiary primary color pigments, which can greatly improve the traditional printing simulation of secondary primary color defects to replicate the real scene effect, and can match multiple colors Printing production plan.
  • the birth of the three primary colors is to simulate the true color full color gamut image from the primary color of C M Y.
  • the secondary primary color RGB is generated each time two of the primary primary colors are combined with each other.
  • the three primary colors are recombined from the primary primary color and the secondary primary color; each primary color can be combined with each other to produce more four primary colors, five primary colors, and the like, and the intention is to simulate a true color image.
  • the source of the second, third, and fourth primary colors is the primary color from the artificially produced pigment, which is used to simulate the natural spectrum, so that the full color effect on the light source cannot be truly interpreted. Therefore, the printing industry has long been stored in a state of lack of color for production.
  • High-fidelity printing is a combination of multi-color printing process, expanding the color gamut space, achieving a closer effect of real-life color reproduction, and a more perfect state.
  • the 6-color production commonly used in the printing industry is CMYK+Orange And green; 7 color production is CMYK+RGB.
  • the present invention can provide a multi-primary printing quality control method:
  • the gray balance is based on the preset percentage of the primary color, and is printed by overprinting.
  • the combination of the three primary colors is cyan, magenta, and yellow; the secondary primary colors red, green, and blue can be added.
  • Main source Color three; primary color green + green, blue + blue, magenta + blue, magenta + red, yellow + red, yellow + green can be added to the two corresponding primary colors.
  • the gray balance state is then color cast.
  • the gray balance color change may be inclined to the super color side or vice versa to reveal the opposite color.
  • each secondary primary color is equivalent to two primary colors.
  • each R G B color block plus a relative primary color forms a neutral gray, that is, WKTone neutral gray scale (NGTs).
  • the neutral gray combinations (NGTs) are: red + green; green + magenta; blue + yellow.
  • the specific scheme of the WKTone (HiFi) of the present invention is to provide a multi-primary color printing quality control method, which is to set a color value area on a printing material, and to use the main primary colors cyan "C", magenta "M” and yellow “Y”.
  • the secondary primary colors produced by combining with each other are overprinted with a corresponding primary color by a predetermined percentage, forming a primary gray color (NGT) in combination with the primary primary colors, and black in the set color value region.
  • the K" halftone (MGT) compares the reference monochrome grayscale with the primary primary and secondary colors in combination with the neutral grayscale (NGT) to make color corrections to control color changes.
  • the secondary primary colors may be secondary primary colors: red (R), green (G), and blue (B), and the corresponding primary colors are secondary primary colors.
  • the main primary color corresponding to red is cyan
  • the primary primary color corresponding to green is magenta
  • the primary primary color corresponding to blue secondary color is yellow.
  • the secondary primary color is added to the corresponding primary primary color according to a certain color value percentage, and combined with each other. Form a neutral gray level (NGT:).
  • the secondary primary color may be three primary colors, [the three primary colors are a combination of primary colors, and a predetermined percentage of the primary primary color and the secondary primary color are combined with each other, IJ : Cyan + Green (C+G); Cyan + Blue (C+B); Magenta + Blue (M+B); Magenta + Red (M+R); Yellow + Red (Y+R); +Green (Y+G)], adding the three primary colors to a suitable number of primary colors according to a certain percentage of color values, and combining them to form a neutral gray level (NGT), then: green + green corresponds to the primary primary colors of yellow and magenta; The main primary colors of cyan + blue are magenta and yellow; the main primary colors of magenta + blue are cyan and yellow; the main primary colors of magenta + red are yellow and blue; the main primary colors of yellow + red are magenta and cyan; Green corresponds to the main primary colors of cyan and magenta.
  • the secondary primary colors may be four primary colors, five primary colors, and sequential primary colors are generated from the primary primary colors, and the primary primary colors corresponding to each other are sequentially pressed.
  • the predetermined percentages are overprinted and combined to form a neutral gray scale (NGT).
  • the black "K” halftone (MGT) and the printing operation can be set to use the number of secondary primary colors, and the NGT double grayscale shape can be formed by using the relative primary color method.
  • GCT black "K” halftone
  • the NGT double grayscale shape can be formed by using the relative primary color method.
  • the multi-primary color printing quality control method of the invention can integrate the color gradation structure into the printing product pattern, design the desired double gray scale (MGT) and (NGT) shape images, and place them in the suitable position for the printing work. Visual and instrument comparison.
  • the multi-primary printing quality control method of the present invention is to produce a neutral gray reference sample according to a combination of a primary gray color (NGT) and a black "K" halftone (MGT) of a primary primary color and a secondary primary color. , for production, for the entire printing job visual and instrumental comparison of color standards.
  • NTT primary gray color
  • MCT black "K" halftone
  • the multi-primary color printing quality control method of the invention can collect double gray scale color values by photoelectric method using an automatic scanning instrument, cyclically read by electronic color scanning instrument and calculate color color change value by using automatic computer software. The amount of unbalanced color value is automatically corrected, and a visual target is provided for the operator to visually confirm whether the automated correction result is acceptable.
  • the multi-primary color printing quality control method of the invention can be combined with suitable electronic and optical technologies to design a reference neutral gray scale sample and a visual screen RGB secondary primary color source color value combined, and adjust the color value to reveal neutrality. Gray, compared to the preset sample for visual and instrumental reference.
  • the multi-primary printing quality control method of the present invention can design a desired color gradation shape according to the color and pattern selected for use in the printing operation, and manufacture the halftone gradation into a reference standard sample.
  • the gradation shape is designed to be accurately overprinted, and a row of side-by-side covers the printed area.
  • the multi-primary color printing quality control method of the present invention can automatically read color amount by using an automatic color scanning instrument to cycle reading and for calculating the color color change value by the automated computer software, and provide a visual target for the operator to confirm the automatic correction result.
  • the multi-primary printing quality control method of the present invention can adopt a combination of a primary primary color and a secondary primary color, a neutral gray scale (NGT), a black "K" halftone (MGT), and a color and pattern design according to the design.
  • the halftone level is produced to produce an excellent sample reference sample, and the production process is combined in a single color, a partial color, and a full color, for comparison between the visual inspection of the entire printing operation and the color standard of the instrument.
  • the gray balance preset color value percentage of the present invention is in the optical principle, an equal amount of the primary primary color is overprinted to form black, and in the halftone, the process is gray. Based on the color value of each pigment raw material manufacturer, the primary color values are different and cannot be unified. Therefore, when using different suppliers' colors for production, it is necessary to independently adjust the percentage of each primary color value to achieve gray balance (NGT). , for visual comparison with black halftone (MGT).
  • the multi-primary color printing quality control method of the present invention can replace the primary color gradation and the secondary primary color gradation and the color used according to the design to make a 100% monochrome color block and a preset percentage monochrome.
  • WKTone ⁇ i-F The main function of WKTone ⁇ i-F is diversified, and it is also suitable for a variety of color production.
  • the color selection is not limited by the three primary colors, and the structure is neutral gray scale, and black is used as a reference.
  • This visual color control system can be used with a variety of printing applications. The printed results can be visually and quickly identified, corrected in real time, and the decision-making method is greatly reduced.
  • WKTonei F provides a visual target as an operator to verify the correction result whenever the automatic scanner cycles through and uses the automated computer software to calculate the color variation value for automatic correction of the color value. It has the operator and mechanical "silent" and '' Effective ''the best system for communication.' Once the scanner has collected data in error and made automatic correction, the WKTone (HiFi) NGT or MGT color value changes, and the positive interpretation of the double-gray results of bad prints is inconsistent, and the operator can detect the unbalanced double-gray tone in real time. A magnifying glass or other measuring instrument can also be used to identify bad results in real time.
  • WKTone ( ⁇ ) can take care of the production of multiple primary colors in a single color, partial color and all colors. Use a simple calculation method to set a variety of color NGTs, as long as the selected primary colors can use relative primary colors, secondary primary colors and three primary colors. Combine the neutral gray scale with the "K" MGT for visual reference correction.
  • RGB secondary primary colors are applied to electronic screens, using optical operating principles, plus suitable for electricity
  • the sub-and optical filters are designed with reference to the neutral grayscale samples combined with the color values of the RGB secondary primary color source of the video screen, and the color values are adjusted to be neutral gray, which is compared with the preset samples by visual inspection and instrument reference.
  • the linear graphics device contains neutral grayscale information for visual comparison. It can simplify the chromatic aberration study time and shorten the gradation reference of the color adjustment time.
  • the quality control device can be widely used between proofing and mass production.
  • quality control devices can be widely used in different printing processes, especially lithography, digital printing, digital and traditional proofing and color electromagnetic printing. It can be used in all kinds of machinery, digital electronics, digital electromagnetic printing industry, and can be used for video screen adjustment.
  • Some jobs may require different gray balance values as the target reference. As long as the entire job is in the matching state, it does not limit the standard gray balance value.
  • Some jobs may require a custom color gradation for the target reference as long as the entire job is in a matching state.
  • the preset grayscale can be integrated anywhere as part of the print job.
  • Simple design can reduce the visual confusion when the operator makes ink adjustments. Avoid information overload and visual confusion.
  • a uniform color scale environmental strip can be provided to enable the manufacturer of the color density reading device to accurately collect the grayscale tonal variation value by photoelectric means, covering the job width by 100%, in order to use the automatic scanning and automatic correction device. By collecting color concentration data, operators can take action faster and more accurately.
  • a neutral tonal change means that the balance of the selected patch values is incorrect.
  • the source of ink adjustment is based on the CMY overprint effect.
  • Conventional methods use only individual color standard concentrations to read, and do not overlap each other, reflecting the fact that the actual printing needs to be overprinted. As a result, an unbalanced ink state occurs, but there is no indication.
  • This system also provides the operator and reader with visual quality control target results for the operator to confirm that the automated correction results are qualified as "silent" and 'effective' communication methods.
  • the color selected for the job, the desired color gradation shape is designed, and the halftone gradation is made into a reference standard sample.
  • the gradation shape design is available for mass production.
  • the device is in software form and can be provided through the digital download channel or through the traditional film mode.
  • control unit 25 As long as it is readable, the size of the control unit can be as small as possible. There are no restrictions on height and width.
  • Any type of halftone screen pattern such as AM I FM, can be used.
  • the screen angle uses a standard angle. It is not necessary to set a specific screen angle for each color.
  • the invention WKTone (H1F1) combined with the corresponding primary color and WKTone neutral gray balance theory, is designed as a neutral gray balance multicolor control system, and is made into an electronic or film pattern for various printing schemes and operations.
  • Figure 1 to Figure 10 are the design drawings of the primary primaries plus the secondary primary colors:
  • Figure 3 Green, magenta, yellow, red, green, blue and black overlay design
  • Figure 11 to Figure 20 are the design drawings of the primary color plus three primary colors:
  • Figure 13 cyan, magenta, yellow, yellow + red, cyan + green, magenta + blue and black overlay design;
  • Figure 14 cyan overlay design;
  • Figure 2.1 is a schematic diagram of the combination of primary and secondary colors:
  • the main primary colors are: cyan, magenta, yellow
  • the two primary colors are: red, green, blue
  • the three primary colors are: cyan + green, cyan + blue, magenta + blue, magenta + red, yellow + red, yellow + green
  • the present invention is designed with CMYKRGB halftone percentage dots, according to WKTone theory, according to a preset pattern, a series of alternating, close-fitting, with positioning sequences to provide grayscale vision. Compare references.
  • the "K” gray scale is the main inspection reference as a starting point, acting as a target of "(: ⁇ , ⁇ «, 3 ⁇ 4" mixed into a neutral gray. This reference tool has no length limit, it can cover the entire print width, There is no need to interrupt any color messages and make effective corrections.
  • CMYRGBK 100% monochrome and preset percentage monochrome dots CMYRGBK can also be integrated to replace a little 'T' grayscale to provide additional information on operator dot gain.
  • WKTone HiF has a unique color balance function, no overload information, design patterns as needed, and a wide range of main functions for users to use. This device can use multiple primary color elements to create multiple primary color controls for each form through different combinations. The method, then tightly overprint each other, is constructed as WKTone (Hi Fi;).
  • Figure 1 is a monochrome effect version of a secondary primary color WKTone (tHFi) multi-primary color control system.
  • Figure 2 shows the exact overprinting results for CMYRGBK colors.
  • Figure 3 is a mechanical design composite diagram.
  • Fig. 4 cyan, Fig. 5 magenta, Fig. 6 yellow, Fig. 7 red, Fig. 8 green, Fig. 9 blue and Fig. 10 black clearly illustrate the version of each color mechanical drawing.
  • Each individual color design is equipped with preset monochrome halftones 41, 51, 61, 71, 81, 91 and 101 for NGT neutral grayscale integration.
  • Figure 1 1 is a monochrome effect version of the three primary color WKTone (HiFi) multi-primary color control system.
  • Figure 12 shows the exact overprinting results for CMYYrCgMbK color.
  • Figure 13 is a mechanical design composite diagram.
  • Figure 14 cyan, Fig. 15 magenta, Fig. 16 yellow, Fig. 17 yellow + red, Fig. 18 cyan + green, Fig. 19 magenta + blue and Fig. 20 black can clearly explain the version of the mechanical map.
  • Each individual color design is equipped with preset monochrome halftones 41, 51, 61, 171, 181, 191 and 101 for NGT neutral grayscale integration.
  • FIG. 3 to FIG. 10 and FIG. 14 to FIG. 20 each of which designs the primary color printing pattern, a series of positioning sequences, according to the secondary primary color diagram 7, FIG. 8, FIG. 9; three primary color diagrams 17, FIG. Figure 19 and the relative primary color of Figure 4, Figure 5, Figure 6, Figure 14, Figure 15, Figure 16 preset color value percentage combined with each other, forming a primary gray color (NGT) combined with the primary color and the secondary color, then
  • the secondary primary neutral gray scale (NGT) combined version is: Figure 4 + Figure 7 (green + red); Figure 5 + Figure 8 (magenta + green); Figure 6 + Figure 9 (yellow + blue), another three times
  • the primary color neutral gray scale (NGT) combined version is: Figure 14 + Figure 15 + Figure 17 (green + magenta + yellow red); Figure 15 + Figure 16 + Figure 18 (magenta + yellow + green); Figure 14+ Figure 16 + Figure 19 (green + yellow + magenta blue).
  • the black ' ' ⁇ ' halftone (MGT) Fig. 10 and Fig. 20 are used to compare the neutral gray scale with the primary primary color and the secondary primary color combined with the neutral gray scale (NGT).
  • 2 and Figure 12 are the results of the overprinting of the above primary colors. The visual and instrument reference readings are compared, the color values are corrected to control the color change, and the visual target is provided for the operator to confirm whether the automatic correction is qualified.
  • Figure 21 is the main The principle diagram of the combination of primary colors and secondary colors.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color Image Communication Systems (AREA)
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  • Color, Gradation (AREA)

Description

多原色印刷质量控制方法
技术领域
本发明涉及一种印刷质量控制方法, 特别是一种多原色印刷质量控制方 法。 背景技术
色彩理论乃一般小学程度的教学课本内都一一解说清楚。颜色圆环是常用 的教学工具来认识色彩理论。具体而言,天然色谱可由品红 (M)、红 (R)、黄 (Y)、 绿 (G)、 青 (C)、 蓝 (B)六色结合。 品红、 黄、 青主原色乃是用减色法而形成, 适用于各类颜色墨、油漆等产品之用;红、绿、蓝二次原色是用加色法而形成, 适用于电子光学应用在电视、 扫瞄器等产品上。
根据以上的颜色理论,科学家根据减色法利用滤光镜片,分析出主原色品 红、黄、青三色,然后加上黑色为图像加强剂作为日后四色印刷技术制作基础, 直至今天。
传统人工图像分色需要高度专业技术。利用己设定颜色光学镜片作为滤光 片, 将全色图像, 分析成品红、 黄及青之三主原色。 而传统印刷工业就利用三 主原色之颜料另加上黑结合成印刷品,仿真全色图像,只可在细色域空间运作。
随着计算机技术及持续发展, 印刷业应用了高速计算机计算工能,数据蓄 存快捷及应用光学电子数码化分色, 毋需人手制作。 多颜色分色供能, 电子滤 镜之诞生, 只要准确输入所需原色之色频便可。 颜色选择可超出传统 CMY主原 色段之范围,所以数码打印设备可选用多达 1 2原色及次原色来摸拟真色打印 图像供目视观赏。这多颜色分色供能也可给"高保真 "印刷之用。基于' '高保真" 印刷可补偿 C M Y主原色缺, 所以在印刷中加入准确二次原色之红、 绿、 蓝; 或三次原色之青 +红、 黄 +绿、 品红 +蓝等或选择其中 2组、 3组等, 图像之 结果会比单采用主原色区 C M Y所组成的色域更为真实,可达至全色真境像模 拟效果, 与我们每天看得到及观赏到一样, "高保真'' 印刷技术就是当今真色 演译的最高境界。 为了印刷生产中, 能真正演译光源上之全色效果,可采用真色二次及三次 原色生产, 基于 RGB是二次原色而来自两个主原色之结合, 例如: 红 =黄+ 品红(R = Y+M) 、 绿 =青+黄(G二 C + Y)与及蓝 =品红+青(B=M + C)。传统二次及三次原色乃是模拟式产生, 如利用光谱数据而制作出准确 二次及三次原色颜料,那可大大改善传统印刷模拟次原色色缺状态来复制真景 物效果, 并可配合多颜色印刷生产方案。
模拟真色二次原色; 三次原色等的诞生是从 C M Y之主原色来模拟真色 全色域图像。每当其中两个主原色互相结合后继而产生二次原色 RGB。三次 原色乃是从主原色与二次原色互相再结合而成;各原色再互相结合可诞生更多 四次原色、 五次原色等等, 用意是仿真真色图像。 可是该二、 三、 四等次原色 之来源都是从人工制作颜料而成的主原色,用作模拟天然光谱,顾此不能真正 演译光源上之全色效果。 所以印刷工业长期储在缺色状态中进行生产。
何谓' '高保真"印刷?高保真印刷是结合多种色印刷工艺, 扩大颜色色域空 间, 可达到真实景物颜色复制更接近的效果, 更完美境界。 印刷业常用的 6色 制作是 CMYK+橙及绿; 7色制作是 CMYK+RGB。
谓何印刷业需要' '高保真' '印刷?基于传统 CMYK印刷制作技术, 只好无 奈的接受三主原色混色后而产生狭窄全色域的印刷界限。"高保真' '印刷是采用 天然颜料,直接调教至天然色谱中之所需次原色来代替模拟次原色, 这可改善 CMY主原色色缺问题, 演译真色真境像模拟的最好印刷方法, 供各类印刷生产 方案使用。
虽然多色数分色技术己存在,可是印刷业并没有一个有效在高速生产中使 用的色控管理方法,操作员极具困难目视观察各色量不平衡状态, 以实时作出 快速有效及准确地调控色量。 传统的 CMYK电子量度仪器也不能有效的分 辨次原色色量不平衡的生产。 发明内容
为了解决印刷业一直欠缺一个有效全面准确真色多数色生产质控系统问 题, 本发明能提供一种多原色印刷质量控制方法:
首先从灰平衡理论来看,灰平衡是采用原色预设百分比,作叠印印刷而成, 如:三主原色之结合为青、 品红、 黄; 二次原色红、 绿、 蓝可加入相对应主原 色而成; 三次原色青 +绿、 青 +蓝、 品红 +蓝、 品红 +红、 黄 +红、 黄 +绿可加入两 个相对应主原色而成。每当其中一种或两种原色改变其色值, 该灰平衡状态继 而偏色。 灰平衡色变可倾向超色一方或反之色缺时可显露相对原色那一方。
再从蒙素颜色平衡理论原理来看, 天然色谱中之二次原色 R G B颜色红、 绿、 蓝具备准确独特色值, 各二次原色载有相等于两个主原色。如每 R G B色 块加上相对的主原色便形成中性灰色, 即 WKTone中性灰阶 (NGTs ) 。 而各中性 灰组合 (NGTs )为 : 红 +青; 绿 +品红; 蓝 +黄。每当任何一中性灰组合 (NGTs )内 之单元 CMYRGB色彩产生变化,灰平衡色变可倾向超色一方或反之色缺时显露相 对色的那一方。 所以,, 利用 WKTone之设计, 填上(NGTs ) CMYRGB颜色单元预设 半色调百分比的中性灰平衡质控目视目标, 在设定的色值区中把黑色" K"半色 调 (MGT)为参照单色灰阶, 所有 MGT和 NGT可提供灰阶视觉比较参照, 进行标准 油墨浓度调整来达到精密准确多色中性灰平衡效果。 此供七色印刷之用。
在六色彩色中性灰平衡质控系统, 与七色质控系统同一原理。举例, 如选 用之橙色 (品红 +黄) 三次原色之元素, 其中具备两份黄及一份品红主原色 (2Y -r 1Μ 利用蒙素颜色平衡理论, 加入合适相对主原色作出灰平衡修正。 在橙色上加入一份品红及两份青主原色(1M + 2C) , 产生中性灰平衡结果 (2Y + 1M) + ( 1M -÷■ 2C) = ( 2Y + 2M + 2C) 二 2(Y + Μ + C), 简化结果为 NGT (C + M + Y:) , 这是印刷质量控制管理方法之理论。 设定其它三次原颜色的 NGT也是同 一方程式。
本发明 WKTone (HiFi)的具体方案是, 提供一种多原色印刷质量控制方法, 是在印刷物料上设置色值区, 把由主原色青色" C" 、 品红色 "M"及黄色 "Y"互 相结合而产生的次原色,与相对应的主原色按预先确定的百分比进行套印, 形 成主原色与次原色结合之中性灰色阶 (NGT), 在设定的色值区内, 以黑色 "K" 半色调 (MGT) 为参照单色灰阶与主原色和次原色结合之中性灰色阶 (NGT) 进行比较, 以作出色值修正, 来控制颜色的变化。
本发明的这一种多原色印刷质量控制方法, 所述的次原色可以是二次原 色: 红 (R)、 绿 (G)、 蓝 (B), 所述的对应的原色是, 二次原色红色对应的主原色 为青色、二次原色绿色对应的主原色为品红色、二次原色蓝色对应的主原色为 黄色,.将二次原色按一定色值百分比加入相对应主原色, 互相结合形成中性灰 色阶 (NGT:)。 本发明的这一种多原色印刷质量控制方法, 所述的次原色可以是三次原 色, [三次原色是来自原色之结合, 由预定主原色及二次原色按一定百分比, 互相结合而成, 贝 IJ : 青 +绿 (C+G); 青 +蓝 (C+B); 品红 +蓝 (M+B); 品红 +红 (M+R); 黄 +红 (Y+R); 黄 +绿 (Y+G)], 将三次原色按一定 色值百分比加入适合数量相对应主原色, 互相结合形成中性灰色阶 (NGT), 则: 青 +绿对应主原色为黄、 品红; 青 +蓝对应主原色为品红、 黄; 品红 +蓝 对应主原色为青、 黄; 品红 +红对应主原色为黄、 青; 黄 +红对应主原色为品 红、 青; 黄 +绿对应主原色为青、 品红。
本发明的这一种多原色印刷质量控制方法,所述的次原色依次可以是四次 原色、五次原色及依次顺序次原色都是从主原色产生而来, 与依次相对应的主 原色按预先确定的百分比进行套印, 互相结合形成中性灰色阶 (NGT)。
本发明的这一种多原色印刷质量控制方法, 可以将所述的黑色 "K"半色调 (MGT) 及印刷作业设定使用次原色数量, 利用相对原色方法, 制成 NGT双 灰阶形状, 准确紧密套印, 一列并排涵盖全印刷面积, 供操作员进行目测分析 比较双灰阶值是否相近, 判断色值变化。
本发明的这一种多原色印刷质量控制方法,可以将颜色色阶结构融入印制 品图案, 设计出所需双灰阶 (MGT) 及 (NGT) 形状图像, 放置入印制品作 业适合位置, 供目视和仪器比较。
本发明的这一种多原色印刷质量控制方法,是依据设计所需主原色与次原 色组合之中性灰色阶 (NGT)及黑色 "K"半色调(MGT),制造出中性灰参照样本, 进行生产, 供整印刷作业目视和仪器对颜色标准参照比较。
本发明的这一种多原色印刷质量控制方法,该方法可以利用自动扫描仪器 通过光电方式技术收集双灰阶色值,采用电子颜色扫描仪器循环式阅读及利用 自动化计算机软件计算颜色色变值作自动修正不平衡状态色值量,并同时提供 视觉目标供操作员目测确认自动化修正结果是否合格。
本发明的这一种多原色印刷质量控制方法,可以利用和适合电子及光学技 术,设计参照中性灰阶样本与视像屏幕 RGB二次原色光源色值结合, 调教色值 而显露成中性灰色, 与预设样本成目视和仪器参照比较。
本发明的这一种多原色印刷质量控制方法,可以依据印刷作业涉及所选定 使用之颜色和图案,设计所需色阶形状,制造成半色调色阶成为参照标准样本。 该色阶形状设计准确紧密套印, 一列并排涵盖印刷面积。
本发明的这一种多原色印刷质量控制方法,可以采用自动颜色扫描仪器循 环阅读及供自动化计算机软件计算颜色色变值进行自动修正色值量,并提供视 觉目标供操作员确认自动化修正结果。
本发明的这一种多原色印刷质量控制方法,可以采用主原色与次原色组合 之中性灰色阶 (NGT)、 黑色" K"半色调 (MGT) 和依据设计所需使用之颜色和 图案设计出的半色调色阶, 制造出色样参照样本, 以单色、部分颜色及全部颜 色组合生产流程, 供整印刷作业目视和仪器对颜色标准参照比较。
本发明所述灰平衡预设色值百分比乃是光学原理中,相等份量的主原色叠 印而形成黑色,在半色调时则程现灰色。基于每种颜料原材料生产商所制作出 的原色色值有所不同,未能统一,所以选用不同供货商的颜色作生产时是需要 独立调整各原色色值百分比来达致灰平衡 (NGT), 以用作与黑色半色调 (MGT) 作视觉比较。
本发明的这一种多原色印刷质量控制方法, 可将参照色调色阶, 替换上主 原色与次原色阶和依据设计所需使用之颜色,作出 100%单色色块及预设百分比 单色网点, 以提供操作员网点扩大值附加信息。
WKTone^i -F 之主体功能是多元化, 也适合多种颜色生产之用, 颜色选 择不被三原色的限制, 结构成中性灰阶, 采用黑色作为参照。 该目视色控系统 可配合各类印刷之用。 印刷结果可直观而快速鉴定, 实时修正, 大大减少采用 试错法之决点。
每当自动扫描仪循环阅读及采用自动化计算机软件计算颜色色变值作自 动纠正色值量后, WKTonei F 能提供视觉目标作为操作员核实修正结果,具 有操作员与机械之"无声"并''有效' '沟通的最好系统。一旦扫描仪发生错误收集 数据而作出自动修正, 令 WKTone(HiFi ) NGT或 MGT色值变化, 正面的演译出不 良印刷品双灰阶结果不一致,操作员便可实时察觉不平衡双灰调,毋需使用放 大镜或其它量度仪器也可实时辨认不良结果。
WKTone (ΗίΡΊ )可照顾多原色已单色、部分颜色及全部颜色组合生产制作, 使用简单计算方法设定多种色 NGTs,祇要所选原色可以利用相对主原色、二次 原色及三次原色等来结合出中性灰阶与 "K" MGT作目视参照修正之用。
基于 RGB二次原色是应用在电子屏幕上, 利用光学运作原理, 加上适合电 子及光学滤光片,设计参照中性灰阶样本与视像屏幕 RGB二次原色光源色值结 合, 调教色值而显露成中性灰色, 与预设样本成目视和仪器参照比较。
本发明还有如下的优点和用途:
1、 线性图形装置包含用于视觉比较的中性灰阶信息。 可以简化色差研究 时间和缩短颜色调整时间的色阶参照。
2、 持续监控印刷机机械状态是否有缺陷, 即印刷重影、 齿轮运转不良、 机械磨损、 油墨浮渣在印刷版面之上、 油墨供应系统供墨不均、 自动颜色扫瞄 系统失灵等。
3、 颜色参照并排放射式放置, 无需匹配色阶视觉记忆, 操作员可迅速正 确地比较和调整色差实现实时颜色调整。
4、 质控装置可在校样和大批生产之间广泛使用。 ,
5、质控装置可广泛应用于不同的印刷工艺, 特别是平版印刷、数码印刷、 数码和传统打样及彩色电磁印刷。供各类机械、数码电子、数码电磁印刷工业 制作之用, 以及可作视像屏幕调教用途。
6、 某些作业可能需要不同的灰色平衡值作为目标参照, 只要整个作业处 于匹配状态, 它不会限制标准灰平衡值。
7、 某些作业可能需要而自选颜色色阶作目标参照, 只要整个作业处于匹 配状态。
8、 预设灰阶可以在任何地方整合为印刷作业内容的一部分。
9、采用目视方法, 多色灰平衡质控, 可有效的控制中性灰色采样形象化, 以改善油墨范围的不平衡。
10、简单的设计可以减少操作员进行油墨调整时的视觉混乱。避免信息超 载和视觉混乱。
11、可提供统一的色阶环境条, 让颜色浓度读取设备生产商通过光电方式 精确地收集灰阶色调变化值, 百分之一百地涵盖作业宽度, 以便使用自动扫描 和自动纠正装置, 收集颜色浓度数据, 操作员可以更快和更准确地采取行动。
12、 在印刷中使用所选的半色调参照,而不是 100%单色颜色色标作参照, 进行质控, 可节省推测不平衡颜色套印效果的读取时间。
13、 可轻易 别缺色元素, 而无需使用昂贵和复杂的油墨浓度读取设备。 14、 万能, 可与许多颜色管理控制系统整合, 作为快速参照点工具。
15、 中性色调变化意味着所选色块值的平衡不正确。
16、中性色调在印刷纸张之间迅速变化意味着印刷机有机械缺陷,或许可 能是印刷材料特变所至。
17、 油墨调整的来源基于 CMY套印效果。 传统方法只使用个别颜色标准浓 度读取, 没有互相迭印, 反映实质印刷需要迭印的状况, 结果是发生不平衡油 墨状态, 但没有任何迹象。
18、此系统亦能提供操作员与阅读器建立了目视质控目标结果供操作员确 认自动化修正结果是否合格 "无声''并''有效"沟通方法。
19、 作业所选定使用之颜色, 设计所需色阶形状, 制造成半色调色阶成参 照标准样本。 该色阶形状设计可供大批生产。
20、 提供电子屏幕色值调控功能。 利用适合电子或光学技术, 调教 RGB二 次原色色值而显露成灰色, 与预设黑色中性灰色成参照比较。 此乃该屏幕 RGB 色值平衡调节结果。
21、 能将各原色和所选定之颜色制造出色样参照样本, 以单色、 部分颜色 及全部颜色组合生产流程进行生产,供整印刷作业目视和仪器对颜色标准参照 比较。
22、装置采用软件形式, 可通过数码下载通道提供, 也可通过传统菲林方 式输出。
23、 在印刷过程中提供准确的各颜色油墨区 /墨键调整控制。 这些预设图 案中性灰阶装置可提供最大的覆盖范围, 即整个印刷宽度的所有油墨信息,而 无需中断数据。
24、对墨种的使用没有限制。只有平衡条件受控, 任何墨水都可以提供中 性灰阶。
25、 只要可读, 控制装置的大小可以尽可能小。 对高度和宽度没有限制。
26、 对网版的每英寸行数没有限制。
27、 可以采用任何类型的半色调网版式样, 如 AM I FM。
28、 网版角度采用标准角度, 没有必要为每个颜色设置特定的网版角度。
29、对于预设装置, 中性灰阶的形状和尺寸没有限制; 只要在设备可读和 可测量比较结果, 则将半色调和单色区放置在 "K"灰阶色条上方。
30、 本质控方法, 双灰调 (MGT)及(NGT) 图像应互相紧密套印一起作目 视比较。 每当双灰调 (MGT)及(NGT) 图像未对规、 未套印成功情况下, 双灰 调图像之间没有加印而形成裂缝,显露作业物料成像白线;反之,双灰调(MGT) 及 (NGT) 也可能互相超越套印规范形成重迭成黑线情况, 这可以提供未套正 之讯息。 附图说明
本发明 WKTone (H1F1 ) , 结合相对应主原色及 WKTone中性灰平衡理论, 设 计成中性灰平衡多色控制系统,制成电子或菲林图案供各类印刷方案及作业之 用。
图 1至图 10是主原色加二次原色的设计图:
图 1 单色效果版本;
图 2 彩色效果版本;
图 3 青、 品红、 黄、 红、 绿、 蓝及黑色迭印设计图;
图 4 青色迭印设计图;
图 5 品红色迭印设计图;
图 6 黄色迭印设计图;
图 7 红色迭印设计图;
图 8 绿色迭印设计图;
图 9 蓝色迭印设计图;
图 10 黑色设计图。
图 11至图 20是主原色加三次原色的设计图:
图 11 单色效果版本;
图 12 彩色效果版本;
图 13 青、 品红、 黄、 黄 +红、 青 +绿、 品红 +蓝及黑色迭印设计图; 图 14 青色迭印设计图;
图 15 品红色迭印设计图;
图 16 黄色迭印设计图; 图 17 黄 +红色迭印设计图;
图 18 青 +绿色迭印设计图;
图 19 品红 +蓝色迭印设计图;
图 20 黑色设计图。
图 2.1是主原色与次原色的结合原理图:
主原色为:青、 品红、 黄
二原色为:红、 绿、 蓝
三原色为:青 +绿、 青 +蓝、 品红 +蓝、 品红 +红、 黄 +红、 黄 +绿 具体实施方式
下面结合附图说明对本发明作进一详细的描述: 本发明设计有 CMYKRGB半 色调百分比网点, 参照 WKTone理论, 按照预设图案, 一系列交替、 紧贴套印, 具有定位序列, 以提供灰阶视觉比较参照。 "K"灰阶是作为起点的主要检査参 照, 充当"(:^,丫 ^^«,¾"混合成中性灰色的目标。这个参照工具没有长度限 制,它可以涵盖整个印件宽度,而毋需中断任何颜色讯息,作出有效修正功能。
100%单色和预设百分比单色网点 CMYRGBK也可以整合,代替少许' T'灰阶, 以提 供操作员网点扩大值附加信息。
WKTone (HiF 具有独特的颜色平衡功能, 没有超载信息, 按需要而设计 图案, 主体功能多元化供用户使用。此装置可用多个原色元素, 通过不同的组 合, 为每种形式建立多个原色控制方法, 然后紧密地彼此套印, 构造成 WKTone (Hi Fi;)。
图 1是二次原色 WKTone (tHFi )多原色颜色色控系统之单色效果版本。 图 2 是 CMYRGBK颜色准确套印结果。图 3乃是机械设计合成图。图 4青色、图 5品红色、 图 6黄色、 图 7红色、 图 8绿色、 图 9蓝色及图 10黑色可清楚说明各析色机械图版 本。 各独立色设计备有预设单色半色调 41, 51 , 61 , 71 , 81 , 91及 101作 NGT中性 灰阶整合之用。 全色 100"¾色阶 42 , 52 , 62 ,72 , 82 ,92及 102与及预设百分比 单色网点 43, 53 , 63 , 73 , 83 , 93及 103, 有效地提供持续监控单色浓度及研 究网点扩大值。 要获得最佳的平衡印刷效果, "K"灰阶色标和中性灰阶彼此靠 近, 色调相似, 没有被任何过量的' 'C"、 "Μ"、 'Ύ"、 "R"、 "G"、 "B"混色而导致 中性灰阶改变色调, 保持灰平衡良好状态。
图 1 1是三次原色 WKTone (HiFi )多原色颜色色控系统之单色效果版本。 图 12是 CMYYrCgMbK颜色准确套印结果。 图 13乃是机械设计合成图。 图 14青色、 图 15品红色、 图 16黄色、 图 17黄 +红色、 图 18青 +绿色、 图 19品红 +蓝色及图 20黑 色可清楚说明各析色机械图版本。 各独立色设计备有预设单色半色调 41, 51, 61 , 171 , 181, 191及 101作 NGT中性灰阶整合之用。 全色 100%色阶 42 , 52 , 62, 172 , 182, 192及 102与及预设百分比单色网点 43, 53 , 63 , 173 , 183 , 193及 103 , 有效地提供持续监控单色浓度及研究网点扩大值。 要获得最佳的平衡印 刷效果, 灰阶色标和中性灰阶彼此靠近,色调相似,没有被任何过量的" C"、 "Μ"、 'Τ'、 "Yr"、 "Cg"、 "Mb' '混色而导致中性灰阶改变色调, 保持灰平衡良好 状态。
具体而言, 图 3至图 10及图 14至图 20, 各图设计了该原色印刷图案, 一系 列定位序列, 按二次原色图 7、 图 8、 图 9 ; 三次原色图 17、 图 18、 图 19与相对 主原色图 4、 图 5、 图 6、 图 14、 图 15、 图 16预设色值百分比互相结合', 形成主 原色与次原色组合之中性灰色阶 (NGT),则二次原色中性灰色阶 (NGT)结合版本 为: 图 4+图 7(青 +红); 图 5+图 8(品红 +绿); 图 6+图 9(黄 +蓝), 另三次原色中性 灰色阶 (NGT)结合版本为: 图 14+图 15+图 17(青 +品红 +黄红); 图 15+图 16+图 18(品红 +黄 +青绿);图 14+图 16+图 19(青 +黄 +品红蓝)。 在设定的色值区内, 以 黑色' 'Κ"半色调(MGT)图 10及图 20为参照单色灰阶与主原色及次原色组合之中 性灰色阶 (NGT)互相比较。图 2及图 12乃是以上各原色叠印完成结果。作视觉及 仪器参照阅读进行比较, 修正色值, 来控制颜色的变化, 并提供视觉目标供操 作员确认自动化修正后是否合格。 图 21是主原色与次原色的结合原理图。

Claims

权 利 要 求 书
1 , 一种多原色印刷质量控制方法, 是在印刷物料上设置色值区, 其特征是 把由主原色青色" C〃 、 品红色 及黄色 互相结合而产生的次原色, 与相对 应的主原色按预先确定的百分比进行套印, 形成主原色与次原色结合之中性灰 色阶 (NGT), 在设定的色值区内, 以黑色 半色调 (MGT) 为参照单色灰阶与主 原色与次原色组合之中性灰色阶 (NGT)进行比较, 以作出色值修正, 来控制颜色 的变化。
2, 根据权利要求 1所述的一种多原色印刷质量控制方法, 其特征是所述的 次原色是二次原色, 将二次原色按一定色值百分比加入相对应主原色, 互相结 合形成中性灰色阶 (NGT)。
, 根据权利要求 1所述的一种多原色印刷质量控制方法, 其特征是所述的 次原色是三次原色, 将三次原色按一定色值百分比加入适合数量相对应主原色, 互相结合形成中性灰色阶 (NGT)。
4- . 根据权利要求 1所述的一种多原色印刷质量控制方法, 其特征是次原色 依次可以是四次原色、 五次原色、 及依次顺序的次原色, 都是从主原色产生而 来, 与依次相对应的主原色按预先确定的百分比进行套印, 互相结合形成中性 灰色阶 ( GT )o
5- . 根据权利要求 1所述一种多原色印刷质量控制方法, 其特征是所述的黑 色' ΊΓ半色调 (MGT) 及印刷作业设定使用次原色数量, 利用相对原色方法, 制 成 NGT双灰阶形状, 准确紧密套印, 一列并排涵盖印刷面积, 供操作员进行目 测分析比较双灰阶值是否相近, 判断色值变化。
6, 稂据权利要求 1所述的一种多原色印刷质量控制方法, 其特征是颜色色 阶结构融入印制品图案, 设计出所需双灰阶 (MGT ) 及 (NGT) 形状图像, 放置 入印制品适合位置, 供目视和仪器比较。
7-. 根据权利要求 1所述的一种多原色印刷质量控制方法, 其特征是依据设 计所需主原色与次原色组合之中性灰色阶 (NGT)及黑色 半色调 (MGT ) , 制造 出中性灰参照样本, 进行生产, 供印刷作业目视和仪器对颜色标准参照比较。 8, 根据权利要求 1所述的一种多原色印刷质量控制方法', 其特征是该方法 能利用自动扫描仪器通过光电方式技术收集双灰阶色值, 采用电子颜色扫描仪 器循环式阅读及利用自动化计算机软件计算颜色色变值作自动修正不平衡状态 色值量, 并同时提供视觉目标供操作员目测确认自动化修正结果是否合格。
9-. 根据权利要求 1 所述的一种多原色印刷质量控制方法, 其特征是利用 电子及光学技术, 设计参照中性灰阶样本与视像屏幕 RGB二次原色光源色值结 合, 调教色值而显露成中性灰色, 与预设样本成目视和仪器参照比较。
10、 根据权利要求 1 所述的一种多原色印刷质量控制方法, 其特征是依据 印刷作业涉及所选定使用之颜色和图案, 设计所需色阶形状, 制造成半色调色 阶成为参照标准样本, 该色阶形状设计准确紧密套印, 一列并排涵盖印刷面积。
Π、 根据权利要求 10所述的一种多原色印刷质量控制方法, 其特征是采用 自动颜色扫描仪器循环阅读及供自动化计算机软件计算颜色色变值进行自动修 正色值量, 并提供视觉目标供操作员确认自动化修正结果。
12, 根据权利要求 1、 10所述的一种多原色印刷质量控制方法, 其特征是 采用主原色与次原色组合之中性灰色阶 (NGT)、 黑色 K"半色调 (MGT) 和依据设 计所需使用之颜色和图案设计出的半色调色阶, 制造出色样参照样本, 以单色、 部分颜色及全部颜色组合生产流程, 供整印刷作业目视和仪器对颜色标准参照 比较。
- ΪΙ 根据权利要求 1、 10所述的一种多原色印刷质量控制方法, 其特征在 于所述参照色调色阶, 替换为主原色与次原色阶和依据设计所需使用之颜色, 作出 100%单色色块及预设百分比单色网点,以提供操作员网点扩大值附加信息。
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