CN107757166B - A kind of color management method and device maximizing uncoated paper printing colour gamut - Google Patents
A kind of color management method and device maximizing uncoated paper printing colour gamut Download PDFInfo
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- CN107757166B CN107757166B CN201710992972.7A CN201710992972A CN107757166B CN 107757166 B CN107757166 B CN 107757166B CN 201710992972 A CN201710992972 A CN 201710992972A CN 107757166 B CN107757166 B CN 107757166B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/14—Multicolour printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N6/00—Mounting boards; Sleeves Make-ready devices, e.g. underlays, overlays; Attaching by chemical means, e.g. vulcanising
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- Printing Methods (AREA)
Abstract
The present invention discloses the color management method and device of a kind of maximization uncoated paper printing colour gamut, method includes the following steps: (1) sets compound screening for dot shape by setting before print；(2) by publishing compensated curve setting before print: reducing the dot gain of CMYK to 13%-16%, Lai Zengjia image contrast level；(3) four color density values are improved to 0.95 K 1.25-1.30, Lai Zengjia color saturation of C 1.20-1.25 M 1.20-1.25 Y；(4) by adjusting printing machine setting: increasing blanket liner, to increase the pressure between printing machine blanket cylinder and impression cylinder, improve uncoated paper oil absorbency；(4) it by adjusting CMY ink viscosity, is added in primary colors ink and removes stick 2%-4%.The present invention increases inking amount by improving paper absorbency, and cooperation prepress treatment increases tint hierarchy to increase colour gamut, prints colour gamut compared with ISO and expands 30% or more, make to publish and production side is more happy to produce using uncoated paper, coating paper manufacturing process is reduced, cost, friendly environment are reduced.
Description
Technical field
The present invention relates to print field technologies, refer in particular to a kind of color management side of maximization uncoated paper printing colour gamut
Method and device.
Background technique
The production of coating paper is that water base property coating is coated on uncoated paper, improves paper surface properties and gloss
Degree, when printing, more preferably sprawl ink, and colour gamut is presented；In uncoated paper surface printing multicolour pattern, four color of standard is mainly used
Ink, the colour generation for influencing paper is mainly exactly the roughness (surface property) of paper, glossiness and ink absorption, paper it is white
Spending color domain, there are few influences.
As shown in Figure 1, be coating paper figure compared with uncoated paper colour gamut using ISO12647-2 as standard, it can from Fig. 1
Know, uncoated paper colour gamut is obviously less than normal, is all based on coating paper due to designing and making, and this gamut differences are away from causing to be unfavorable for
It shows coloury work of fine arts and reproduces design idea.
Summary of the invention
In view of this, maximizing non-painting in view of the deficiencies of the prior art, the present invention aims to provide a kind of
Cloth paper prints the color management method and device of colour gamut, prints gamut range by extension uncoated paper, uncoated to be promoted
The color expressive ability of paper, improve print quality helps to extend the application range of the stationery simultaneously, reduces answering for coating paper
With conducive to environmental protection.
To achieve the above object, the present invention is using following technical solution:
A kind of color management method maximizing uncoated paper printing colour gamut, includes following steps:
(1) by setting before print, set compound screening for dot shape: 30% or less and 70% the above are 20u modulating nets；
30%-70% is circumference net form；
(2) by publishing compensated curve setting before print: reducing the dot gain of CMYK to 13%-16%, Lai Zengjia image rank
Adjust level；
(3) four color density values for printing ink are improved to 0.95 K 1.25- of C 1.20-1.25 M 1.20-1.25 Y
1.30；
(4) by adjusting printing machine setting: increasing blanket liner, to increase between printing machine blanket cylinder and impression cylinder
Pressure；
(5) it by adjusting CMY ink viscosity, is added in primary colors ink and removes stick 2%-4%.
(6) the new test space of a whole page is printed in printing and publishing again, checks the P2P data of test printed sheet, and verifying reaches G7 and wants
It asks；
(7) after printed sheet data grey balance meets G7 requirement, IT8 table is measured, establishes new ICC chromatic characteristic shelves, and lead
New gamut map contrasts two colour gamut charts out, it is known that gamut range grows beyond 30%.
As a preferred embodiment, it is described by increase blanket liner with a thickness of 0.05-0.08mm, to increase printing
Pressure between machine blanket cylinder and impression cylinder.
As a preferred embodiment, color of the new ICC chromatic characteristic shelves for the same category uncoated paper from now on
Management process includes color separation processing, digital original text outputting standard and the printing control standard for file.
A kind of color management device maximizing uncoated paper printing colour gamut includes to publish before setup module, print before printing
Compensated curve setup module, adjustment ink saturation degree module, adjustment printing machine setup module, adjustment CMYK ink viscosity module,
Check authentication module and newly-built export module；
Setup module before the print, for setting compound screening for dot shape: 30% or less and 70% the above are 20u frequency modulation
Net；30%-70% is circumference net form, Lai Zengjia paper ink light reflection surface product；
Compensated curve setup module is published before the print, for reducing CMYK dot gain to 13%-16%, Lai Zengjia image
Tint hierarchy；
The adjustment ink saturation degree module is by improving four color density value of ink for being printed on paper to C 1.20-1.25
0.95 K 1.25-1.30, Lai Zengjia color saturation of M 1.20-1.25 Y；
The adjustment printing machine setup module is rolled for increasing blanket liner with increasing printing machine blanket cylinder and coining
Cylinder between pressure, Lai Gaishan uncoated paper performance of ink；
Adjustment CMYK ink viscosity module removes stick 2%-4%, Lai Gaishan ink pellet surface for being added in primary colors ink
Smoothness, extension light reflection surface product；
The inspection authentication module prints the new test space of a whole page for printing and publishing again, checks the P2P number of test printed sheet
According to, and verify and reach G7 requirement；
The newly-built export module establishes new ICC chromatic characteristic shelves, and export new gamut map ratio for measuring IT8 table
According to two colour gamut charts.
As a preferred embodiment, it is described by increase blanket liner with a thickness of 0.05-0.08mm, to increase printing
Pressure between machine blanket cylinder and impression cylinder.
As a preferred embodiment, color of the new ICC chromatic characteristic shelves for the same category uncoated paper from now on
Management process includes color separation processing, digital original text outputting standard and the printing control standard for file.
The present invention has obvious advantages and beneficial effects compared with the existing technology, specifically, by above-mentioned technical proposal
Known to:
The method of the present invention and device are increased under paper, ink main material fixing situation by improving paper absorbency
Inking amount, cooperation prepress treatment increases tint hierarchy to increase colour gamut, and new ICC chromatic characteristic shelves are established with this data.With
Digital original text outputting standard and printing standard under new gamut standards, printing colour gamut expand compared with the initial gamut on the basis of ISO
30% or more, closer to coated paper printing effect, press quality is promoted, makes to publish and production side is more happy to use uncoated paper
Production reduces coating paper manufacturing process, reduces cost, friendly environment.
In order to explain the structural features and functions of the invention more clearly, come with reference to the accompanying drawing with specific embodiment to this hair
It is bright to be described in detail.
Detailed description of the invention
Fig. 1 is coating paper figure compared with uncoated paper colour gamut in the prior art using ISO12647-2 as standard；
Fig. 2 is coating paper figure compared with uncoated paper colour gamut in the preferred embodiments of the invention.
Specific embodiment
Present invention discloses a kind of color management methods of maximization uncoated paper printing colour gamut, include following steps:
(1) by setting before print, set compound screening for dot shape: 30% or less and 70% the above are 20u modulating net,
30%-70% is circumference net form, increases site sprawling in different secondments with this, expands ink reflectance area, improves vision to color
Color perception.Contrast uses FM net below 30%, can increase ink sprawling in paper, expands ink reflectance face；70%
The above contrast uses FM net, can reduce ink in the accumulation of paper in the case where improving ink density.
(2) by publishing compensated curve setting before print: reducing the dot gain of CMYK to 13-16%, Lai Zengjia image rank
Adjust level.
(3) four color density values for printing ink are improved to 0.95 K 1.25- of C 1.20-1.25 M 1.20-1.25 Y
1.30, saturation layer of ink helps to expand gamut range.
(4) by adjusting printing machine setting: increasing blanket liner, to increase between printing machine blanket cylinder and impression cylinder
Pressure；In the present embodiment, 0.05-0.08mm, Lai Zengjia printing machine blanket cylinder and coining are padded by increasing blanket
Pressure between roller, that comes the surface of assistant reinforcement uncoated paper holds black basis, increases flatness, facilitates more preferable reflectance ink
Color；Promote ink to paper fibre osmotic absorption simultaneously, increases covering of the ink to paper.
(5) it by adjusting CMYK ink viscosity, is added in primary colors ink and removes stick 2%-4%, to reduce ink in adhesive plaster
Peeling force guarantees the smoothness of ink pellet surface, it is ensured that ink pellet surface product can reflect (mirror-reflection) to greatest extent, improve gloss
Degree increases L value.Meanwhile also increasing ink trapping, enrich colour gamut.
(6) the new test space of a whole page is printed in printing and publishing again, checks the P2P data of test printed sheet, and verifying reaches G7 and wants
It asks.
(7) after printed sheet data grey balance meets G7 requirement, IT8 table is measured, establishes new ICC chromatic characteristic shelves, and lead
New gamut map contrasts two colour gamut charts out, it is known that gamut range grows beyond 30%.The new ICC chromatic characteristic shelves are used for
The color management process of the same category uncoated paper from now on includes color separation processing, digital original text outputting standard and the print for file
Brush control standard.
The invention also discloses a kind of color management devices of maximization uncoated paper printing colour gamut, include setting before print
Compensated curve setup module, adjustment ink saturation degree module, adjustment printing machine setup module, adjustment CMY oil are published before module, print
Black viscosity module checks authentication module and newly-built export module.
Setup module before the print, for setting compound screening for dot shape: 30% or less and 70% the above are 20u frequency modulation
Net；30%-70% is circumference net form, Lai Zengjia paper ink light reflection surface product.
Compensated curve setup module is published before the print, for reducing CMYK dot gain to 13%-16%, Lai Zengjia image
Tint hierarchy；
The adjustment ink saturation degree module is by improving four color density value of ink for being printed on paper to C 1.20-1.25
0.95 K 1.25-1.30, Lai Zengjia color saturation of M 1.20-1.25 Y.
The adjustment printing machine setup module is rolled for increasing blanket liner with increasing printing machine blanket cylinder and coining
Cylinder between pressure, Lai Gaishan uncoated paper performance of ink.
Adjustment CMYK ink viscosity module removes stick 2%-4%, Lai Gaishan ink pellet surface for being added in primary colors ink
Smoothness, extension light reflection surface product；
The inspection authentication module prints the new test space of a whole page for printing and publishing again, checks the P2P number of test printed sheet
According to, and verify and reach G7 requirement.
The newly-built export module establishes new ICC chromatic characteristic shelves, and export new gamut map ratio for measuring IT8 table
According to two colour gamut charts.
With specific embodiment, the present invention will be further described below:
The method (by taking offset paper as an example) of implementation:
Paper:
Type: 120g/m2 offset paper.
Ink:
Four color inks meet the standard of ISO2846-1.
Measuring condition:
Test the printing plate space of a whole page:
Color table containing IT8, P2P is to measurement data.
Measure environment:
Temperature 22-25 is spent；Humidity 55-60.
Main standard and control point before print:
The reduction of site is 2%-98% on printing plate, and the site error of site reduction and original copy on printing plate is ± 1%.
The position that color control bar is placed must be vertical with print direction.
The major control point of printing:
All kinds of ink roller pressures of equipment are looked after and guided in 4-5mm of shop instructions range.
The printing pressure of printing machine is set as the 0.10mm on the basis of paper sheet thickness.
Each mechanical part running of printing machine is smooth, and printed matter is without ghost image and chromatography bad phenomenon.
The technological parameter of printing machine presses standard setting, and fountain solution conductivity is 680-1500.
It is (color according to form and aspect of ISO 12647-2:2004 Amd.1:2007, the CMYK four primaries on standard uncoated paper
Difference is no more than Δ E2000 3.5)
Cyan L*60.00 a* -26.00 b* -43.00
Magenta L*56.00 a* 61.00 b* -1.00
Yellow L*89.00 a* -4.00 b* 78.00
Black L* 31.00 a* 1.00 b* 1.00
By test, certain the brand ink corresponding density for meeting form and aspect requirement is
C 0.98 M 0.96 Y 0.86 K 1.13
Simultaneously according to ISO12647-2:2004 Amd.1:2007 (ISO Curve C), CMYK four primaries are controlled in standard
Dot gain standard on uncoated paper is 19%-20%
After printed sheet data grey balance meets G7 requirement, metric data table is recorded as initial gamut.
As shown in Fig. 2, carrying out printing test according to above-mentioned setting and standard for the colour gamut comparison diagram after improvement, print
Technique includes: that the color target of such as IT8.7/3 or ECI2002 etc professional standard a target is printed on uncoated paper.By
Carry out being printed on international color federation (ICC) color profile that ink is generated on uncoated paper according to known methods.
By measuring the color data of the known tone values of target, and the ink for generating the tone value of one group of ink and being printed
The associated configuration file of colourimetric number printing image so as to adjust image according to the characteristic of specific ink group
When it is more true to nature.Before printing image on the printer, the profileapplied of ink group will be used in color-dividing process.Based on this
The ink group of gamut extension, which obtains a configuration file, can make printing machine farthest utilize the colour gamut extended.
Design focal point of the invention is: the method for the present invention and device lead under paper, ink main material fixing situation
It crosses improvement paper absorbency and increases inking amount, cooperation prepress treatment increases tint hierarchy to increase colour gamut, and with the foundation of this data
New ICC chromatic characteristic shelves.For the digital original text outputting standard and printing standard under new gamut standards, colour gamut is printed compared with ISO
On the basis of initial gamut expand 30% or more, closer to coated paper printing effect, promote press quality, make to publish and make
Side is more happy to produce using uncoated paper, reduces coating paper manufacturing process, reduces cost, friendly environment.
The above described is only a preferred embodiment of the present invention, be not intended to limit the scope of the present invention,
Therefore any subtle modifications, equivalent variations and modifications to the above embodiments according to the technical essence of the invention, still
Belong in the range of technical solution of the present invention.
Claims (6)
1. a kind of color management method for maximizing uncoated paper printing colour gamut, it is characterised in that: include following steps:
(1) by setting before print, set compound screening for dot shape: 30% or less and 70% the above are 20u modulating nets；30%-
70% is circumference net form；
(2) by publishing compensated curve setting before print: reducing the dot gain of CMYK to 13%-16%, Lai Zengjia image contrast layer
It is secondary；
(3) four color density values for printing ink are improved to 0.95 K 1.25- of C 1.20-1.25 M 1.20-1.25 Y
1.30；
(4) by adjusting printing machine setting: increasing blanket liner, to increase the pressure between printing machine blanket cylinder and impression cylinder
Power；
(5) it by adjusting CMY ink viscosity, is added in primary colors ink and removes stick 2%-4%；
(6) the new test space of a whole page is printed in printing and publishing again, checks the P2P data of test printed sheet, and verifies and reach G7 requirement；
(7) after printed sheet data grey balance meets G7 requirement, IT8 table is measured, establishes new ICC chromatic characteristic shelves, and is exported new
Gamut map contrast two colour gamut charts, it is known that gamut range grows beyond 30%.
2. a kind of color management method for maximizing uncoated paper printing colour gamut according to claim 1, it is characterised in that:
By the pressure with a thickness of 0.05-0.08mm, between Lai Zengjia printing machine blanket cylinder and impression cylinder for increasing blanket liner.
3. a kind of color management method for maximizing uncoated paper printing colour gamut according to claim 1, it is characterised in that:
Color management process of the new ICC chromatic characteristic shelves for the same category uncoated paper from now on includes point for file
Color processing, digital original text outputting standard and printing control standard.
4. it is a kind of maximize uncoated paper printing colour gamut color management device, it is characterised in that: include print before setup module,
It is viscous that compensated curve setup module, adjustment ink saturation degree module, adjustment printing machine setup module, adjustment CMYK ink are published before print
Property module, check authentication module and newly-built export module；
Setup module before the print, for setting compound screening for dot shape: 30% or less and 70% the above are 20u modulating nets；
30%-70% is circumference net form, Lai Zengjia paper ink light reflection surface product；
Compensated curve setup module is published before the print, for reducing CMYK dot gain to 13%-16%, Lai Zengjia image contrast
Level；
The adjustment ink saturation degree module is by improving four color density value of ink for being printed on paper to C 1.20-1.25 M
1.20-1.25 0.95 K 1.25-1.30, Lai Zengjia color saturation of Y；
The adjustment printing machine setup module, for increasing blanket liner, to increase between printing machine blanket cylinder and impression cylinder
Pressure, Lai Gaishan uncoated paper performance of ink；
Adjustment CMYK ink viscosity module removes stick 2%-4% for being added in primary colors ink, and Lai Gaishan ink pellet surface is put down
Slippery, extension light reflection surface product；
The inspection authentication module prints the new test space of a whole page for printing and publishing again, checks the P2P data of test printed sheet, and
Verifying reaches G7 requirement；
The newly-built export module establishes new ICC chromatic characteristic shelves, and export new gamut map according to two for measuring IT8 table
Colour gamut chart.
5. a kind of color management device for maximizing uncoated paper printing colour gamut according to claim 4, it is characterised in that:
By the pressure with a thickness of 0.05-0.08mm, between Lai Zengjia printing machine blanket cylinder and impression cylinder for increasing blanket liner.
6. a kind of color management device for maximizing uncoated paper printing colour gamut according to claim 4, it is characterised in that:
Color management process of the new ICC chromatic characteristic shelves for the same category uncoated paper from now on includes point for file
Color processing, digital original text outputting standard and printing control standard.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109605969A (en) * | 2018-12-29 | 2019-04-12 | 星光印刷（苏州）有限公司 | A kind of fine Dot Color control 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 |
| CN110450556B (en) * | 2019-09-06 | 2021-05-04 | 北京雅昌艺术印刷有限公司 | Printing method for improving color gamut and quality of non-coated paper |
| CN110722889A (en) * | 2019-11-19 | 2020-01-24 | 东莞市美盈森环保科技有限公司 | Color control method for ultrahigh fine printing of image |
| CN111016473B (en) * | 2019-12-20 | 2021-04-27 | 苏州美盈森环保科技有限公司 | High-stability color printing method based on color density |
| CN111761955B (en) * | 2020-07-02 | 2022-06-24 | 深圳当纳利印刷有限公司 | Standardized color management method and device for packaging printing paper |
| CN112297667A (en) * | 2020-09-29 | 2021-02-02 | 星光印刷（苏州）有限公司 | Color gamut frequency modulation screen printing process based on XCMYK expansion |
| 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 |
| CN116843770B (en) * | 2023-07-19 | 2024-01-09 | 广东兴艺数字印刷股份有限公司 | Color detection method, device and equipment for printed image and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007125880A (en) * | 2005-10-03 | 2007-05-24 | Toyo Ink Mfg Co Ltd | Lithographic ink printing method excellent in reproducibility of purple phase |
| CN102023475B (en) * | 2010-10-13 | 2012-07-04 | 北京方嘉彩色印刷有限责任公司 | High-precision frequency-modulated screen dot printing process |
| JP5341940B2 (en) * | 2011-03-31 | 2013-11-13 | 富士フイルム株式会社 | Print color management apparatus, print color management method, and program |
| CN103144448B (en) * | 2013-03-27 | 2015-02-18 | 武汉大学 | Ink-quantity limiting method for realizing maximization of ink-jet printing color gamut |
| CN103895377B (en) * | 2014-04-23 | 2016-05-18 | 深圳市国际彩印有限公司 | Various dimensions image prints skill |
| CN104139607B (en) * | 2014-08-04 | 2016-05-11 | 星光印刷（苏州）有限公司 | A kind of color management and printing machine bearing calibration |
| CN104943354B (en) * | 2015-07-13 | 2017-06-13 | 东莞当纳利印刷有限公司 | A kind of color management method and device of overlay film printed matter |
| CN107042689B (en) * | 2017-04-24 | 2019-05-03 | 北京奇良海德印刷股份有限公司 | A kind of printing color quality detecting method |
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Effective date of registration: 20190820 Address after: 523000 old and new Walled Village, Liaobu Town, Dongguan, Guangdong Patentee after: Dongguan Donnelley Printing Co., Ltd. Address before: 518000 Bantian Wuhe Building, Longgang District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Donnelley Printing Company Limited |