CN102642416A - Method for increasing color gamut value of printing ink - Google Patents
Method for increasing color gamut value of printing ink Download PDFInfo
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- CN102642416A CN102642416A CN2012101151461A CN201210115146A CN102642416A CN 102642416 A CN102642416 A CN 102642416A CN 2012101151461 A CN2012101151461 A CN 2012101151461A CN 201210115146 A CN201210115146 A CN 201210115146A CN 102642416 A CN102642416 A CN 102642416A
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Abstract
The invention discloses a method for increasing the color gamut value of printing ink. The method comprises the following steps of: scanning and separating the colors of the manuscript, and storing the color plates of y, m, c and k in a computer after the color separation; printing a digital printing sample or four-color printing ink sample, wherein the color gamut space of the digital proofing is wider than that of printing; carefully comparing the printing samples with the manuscript, selecting the area with unsaturated sample color in printing; for the sample manuscript not meeting the requirement on the printing color density, performing secondary color separation according to the practical reduction of the color of the sample manuscript; reducing the area lacking yellow or increasing 20-30% of the y plate, and making another small yellow plate, a small magenta plate, a small cyan plate or a small black plate; and performing secondary printing by use of other three plates. The method disclosed by the invention can be applied to the condition with unsaturated layer and color in the printed matter. Through the invention, the printed matter obtains bright and vivid colors and rich layers.
Description
Technical field
The present invention relates to improve the method for printing quality, be specially a kind of method that improves printing-ink colour gamut value.
Background technology
In the colored printing process, because mostly the printing ink that printing is used is the Transparent color China ink.There is the problem of degree of purity mostly in the processing of various in the mill essential mineral materials and additive, and therefore, four looks transparent China ink in press can not be accomplished the reduction of the level and the color of complete faithful to original copy.The primary colors China ink of color is like y-yellow, M-magenta, C-cyan, k-black, hereinafter to be referred as y, m, c, k.The impure of primary colors China ink brings very big problem for the color reduction of printed matter.In the coloured image production process, the picture and text transmission all relates to the conversion of color space between equipment and the equipment.And the relationship between quality of printed matter is to the loyal degree of original copy, wherein topmostly comprises duplicating of printed matter color.
Summary of the invention
The technical problem that the present invention solved is to provide a kind of method that improves printing-ink colour gamut value, to solve the shortcoming in the above-mentioned background technology.
Technical problem solved by the invention adopts following technical scheme to realize:
A kind of method that improves printing-ink colour gamut value may further comprise the steps:
The first step: after the Manuscript scanner color separation, at first the good y of color separation, m, c, k four look versions are kept in the computer;
Second step: get digital printing appearance or four-color process China ink appearance; The color gamut space that the color gamut space of digital sample printing will be printed is wide; After carefully comparing original copy with various pulls; The secondary color separation to not reaching the sample manuscript of process color density requirements, can be carried out according to the actual reduction situation of the color of sample manuscript in the not full zone of appearance color in the selected printing;
The 3rd step: lack yellow zone in reduction and increase the 20%-30% of y version, make another piece Xiao Huang version, the red version of essay, little blue or green version or little black print, be used other three versions then and carry out the secondary printing.
Beneficial effect
The present invention can be used for all can using under printed matter is middle-level, color is the not full situation.The present invention can make the bright-colored true to nature of printed matter, levels are rich.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with specific embodiment, further set forth the present invention.
Embodiment 1
After the Manuscript scanner color separation, at first the good y of color separation, m, c, k four look versions are kept in the computer, get digital printing appearance or four-color process China ink appearance then; The color gamut space that the color gamut space of digital sample printing will be printed is wide; After carefully comparing original copy with various pulls; The not full zone of appearance color in the selected printing; To not reaching the sample manuscript of process color density requirements, can carry out the secondary color separation according to the actual reduction situation of the color of sample manuscript, increase the 20%-30% of y version as lack yellow zone in reduction, make another piece Xiao Huang version, be used the red version of essay, little blue or green version and little black print and carry out the secondary printing.
Embodiment 2
After the Manuscript scanner color separation, at first the good y of color separation, m, c, k four look versions are kept in the computer, get digital printing appearance or four-color process China ink appearance then.After carefully comparing original copy with specimen page, the not full zone of appearance color in the selected printing to not reaching the sample manuscript of process color density requirements, lacks color or full inadequately color is carried out the second impression based on the actual reduction situation of the color of sample manuscript.At first printed matter is carried out routine property one-step print, measure then the printing finished product printing density measure with Yin Mo.Squeegee pressure is regulated in reduction according to the color of one-step print article, re-uses that machine carries out the secondary printing on the identical forme, the corresponding 70%-80% that reduces former Yin Momo amount when printing.
Embodiment 3
After the Manuscript scanner color separation, at first the good y of color separation, m, c, k four look versions are kept in the computer, get digital printing appearance or four-color process China ink appearance then.After carefully comparing original copy with specimen page, to not reaching the sample manuscript of process color density requirements, print based on the actual reduction situation of the color of sample manuscript in the not full zone of appearance color in the selected printing.At first regulate squeegee pressure, on the basis of former squeegee pressure, increase by 20% squeegee pressure, next increases the seal China ink amount of 20%-30%, and reduces the 10%-20% of printing water (offset printing), accomplishes the reduction of printed matter color with the method for one-step print.
More than show and described basic principle of the present invention and principal character and advantage of the present invention; The technical staff of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention, and under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications; These variations and improvement all fall in the scope of the invention that requires protection, and the present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (1)
1. a method that improves printing-ink colour gamut value is characterized in that, may further comprise the steps:
The first step: after the Manuscript scanner color separation, at first the good y of color separation, m, c, k four look versions are kept in the computer;
Second step: get digital printing appearance or four-color process China ink appearance; The color gamut space that the color gamut space of digital sample printing will be printed is wide; After carefully comparing original copy with various pulls; The secondary color separation to not reaching the sample manuscript of process color density requirements, can be carried out according to the actual reduction situation of the color of sample manuscript in the not full zone of appearance color in the selected printing;
The 3rd step: lack yellow zone in reduction and increase the 20%-30% of y version, make another piece Xiao Huang version, the red version of essay, little blue or green version or little black print, be used other three versions then and carry out the secondary printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101151461A CN102642416A (en) | 2012-04-19 | 2012-04-19 | Method for increasing color gamut value of printing ink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101151461A CN102642416A (en) | 2012-04-19 | 2012-04-19 | Method for increasing color gamut value of printing ink |
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| Publication Number | Publication Date |
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| CN102642416A true CN102642416A (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101151461A Pending CN102642416A (en) | 2012-04-19 | 2012-04-19 | Method for increasing color gamut value of printing ink |
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| CN (1) | CN102642416A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107618280A (en) * | 2017-10-10 | 2018-01-23 | 重庆东盟包装有限公司 | Food pack bag-making method |
| CN109605966A (en) * | 2018-12-29 | 2019-04-12 | 星光印刷（苏州）有限公司 | A kind of printing technology based on XCMYK expanded color gamut |
| CN114393922A (en) * | 2021-12-27 | 2022-04-26 | 杭州电子科技大学温州研究院有限公司 | Newspaper printing color management method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4011085A (en) * | 1974-10-02 | 1977-03-08 | Rapoport Printing Corporation | Lithographic printing process |
| US4037533A (en) * | 1974-12-05 | 1977-07-26 | Rapoport Printing Corporation | Color lithography using a random pattern screen |
| JPH02262657A (en) * | 1989-03-13 | 1990-10-25 | Daiwa Can Co Ltd | Method for printing on outside surface of cylindrical container in continuous gradation |
| US20080278735A1 (en) * | 2007-05-09 | 2008-11-13 | Xerox Corporation | Registration method using sensed image marks and digital realignment |
| CN101961964A (en) * | 2010-08-20 | 2011-02-02 | 苏州工业园区美柯乐制版印务有限责任公司 | Method for making high-definition high-fidelity color picture of TPW 10 mu m on surface of paper |
| KR20120024670A (en) * | 2009-04-28 | 2012-03-14 | 썬 케미칼 코포레이션 | Methods and systems for multicolor process printing employing both process colors and spot colors in the process ink set |
-
2012
- 2012-04-19 CN CN2012101151461A patent/CN102642416A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4011085A (en) * | 1974-10-02 | 1977-03-08 | Rapoport Printing Corporation | Lithographic printing process |
| US4037533A (en) * | 1974-12-05 | 1977-07-26 | Rapoport Printing Corporation | Color lithography using a random pattern screen |
| JPH02262657A (en) * | 1989-03-13 | 1990-10-25 | Daiwa Can Co Ltd | Method for printing on outside surface of cylindrical container in continuous gradation |
| US20080278735A1 (en) * | 2007-05-09 | 2008-11-13 | Xerox Corporation | Registration method using sensed image marks and digital realignment |
| KR20120024670A (en) * | 2009-04-28 | 2012-03-14 | 썬 케미칼 코포레이션 | Methods and systems for multicolor process printing employing both process colors and spot colors in the process ink set |
| CN101961964A (en) * | 2010-08-20 | 2011-02-02 | 苏州工业园区美柯乐制版印务有限责任公司 | Method for making high-definition high-fidelity color picture of TPW 10 mu m on surface of paper |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107618280A (en) * | 2017-10-10 | 2018-01-23 | 重庆东盟包装有限公司 | Food pack bag-making method |
| CN107618280B (en) * | 2017-10-10 | 2020-09-15 | 重庆东盟包装有限公司 | Method for making food packaging bag |
| CN109605966A (en) * | 2018-12-29 | 2019-04-12 | 星光印刷（苏州）有限公司 | A kind of printing technology based on XCMYK expanded color gamut |
| CN114393922A (en) * | 2021-12-27 | 2022-04-26 | 杭州电子科技大学温州研究院有限公司 | Newspaper printing color management method |
| CN114393922B (en) * | 2021-12-27 | 2023-09-29 | 杭州电子科技大学温州研究院有限公司 | Color management method for newspaper printing |
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Application publication date: 20120822 |