CN114987074A - Novel printing method for controlling color of film-coated product - Google Patents
Novel printing method for controlling color of film-coated product Download PDFInfo
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- CN114987074A CN114987074A CN202110853480.6A CN202110853480A CN114987074A CN 114987074 A CN114987074 A CN 114987074A CN 202110853480 A CN202110853480 A CN 202110853480A CN 114987074 A CN114987074 A CN 114987074A
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- 238000007639 printing Methods 0.000 title claims abstract description 121
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000007888 film coating Substances 0.000 claims abstract description 43
- 238000009501 film coating Methods 0.000 claims abstract description 43
- 239000003086 colorant Substances 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 239000010408 film Substances 0.000 claims description 59
- 238000012360 testing method Methods 0.000 claims description 29
- 238000010030 laminating Methods 0.000 claims description 14
- 230000007935 neutral effect Effects 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 238000003475 lamination Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- 239000012788 optical film Substances 0.000 claims description 7
- 238000012790 confirmation Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000007645 offset printing Methods 0.000 claims description 4
- 238000010923 batch production Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 238000012827 research and development Methods 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 239000002313 adhesive film Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Classifications
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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
- B41M1/06—Lithographic printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
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- Printing Methods (AREA)
Abstract
The invention discloses a new printing method for controlling the color of a film-coated product, which can lead the film-coated product to reach the delivery standard and establish the printing standard before film coating by mutually matching the processes of manufacturing target standard data before and after film coating, establishing standard color preview and digital proofing output standard before film coating, establishing color matching, establishing the printing color standard before film coating and controlling the film-coated color, and simultaneously establishing the printing standard before film coating so as to lead the mark to be consistent during printing; the printing method can quickly realize that the product meets the ISO12647-2 regulations, and the color change after film covering becomes predictable and controllable, and the color preview and digital proofing output of the colors of the printed matter before and after film covering can be realized through the printing data acquired by the printing method, so that the production efficiency is improved, and the information accuracy and delivery standard communicated with the product requirements of customers are improved.
Description
Technical Field
The invention relates to the technical field of printing industry, in particular to a novel printing method for controlling the color of a film-coated product.
Background
Offset printing mode products go deep into each detail of life, and as people improve the quality and grade of printed matters, film coating becomes common surface processing for improving the added value of the printed matters, and the color of the film coated products can be greatly changed, but the domestic printing method for quickly and effectively coating the film products is relatively lacked;
the data of Fogra56 and Fogra57 published by German Fogra organization deviate from ISO12647-2 standard for a long time, TVI is increased by 25% to the maximum extent compared with standard products, color gamut of dark tones is completely sacrificed, color of film-coated products is light, gray and contrast loss, color change from light screen to middle tone is also large, color change after film coating is unpredictable and uncontrollable, and the problems that factories and enterprises in the printing industry are very painful are always caused, a factory needs to sample for many times, manpower and material resources are wasted, and production efficiency is difficult to be obviously improved.
Disclosure of Invention
The present invention is directed to a novel printing method for controlling the color of a film-covered product, so as to solve the problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a novel printing method for controlling the color of a film-covered product comprises the following steps:
s1, designing and manufacturing a test file, setting printing conditions and printing standards:
a: designing a test file;
b: setting of printing conditions: printing a color target test sample sheet, separately testing and collecting an optical film and a dummy film, and controlling neutral gray density; controlling ash balance; controlling the solid density of the four colors; controlling the printing sample sheet after the dot expansion and drying to meet the requirements of ISO 12647-2;
c: printing standard: the upper test plate is printed in a 210lpi screening mode, and the printing conditions ensure that the equipment and material states meet the Yachang test research and development standard;
s2, transferring a target icc after the incoming image is coated with a film:
collecting color target data (M1 mode) by an Ali 1isis instrument to generate a target icc after film coating;
s3, color matching and color separation preview adjustment, and color tracing standard after printing a digital sample for film coating:
A. the optical film and matte film target data in the step S1 are used for color conversion and image adjustment and color separation preview of printed files with different image adjustment standards; the color standard digital proofing output device is used for printing and outputting the color standard digital proofing after film covering;
B. the digital proofing is used for the confirmation and communication of the delivery standard of the customer and the confirmation of the color of the produced goods;
s4, acquiring change data of the coated net points, calculating a coating compensation curve and setting secondary printing conditions:
A. after the sample sheet obtained in the step S1 is coated with a matte film, acquiring dot expansion change data, calculating dot expansion required by printing before film coating by reverse pushing, and performing dot compensation correction of film coating product printing;
B. calculating a film covering compensation curve: acquiring dot expansion change data before and after film coating, and calculating a film coating printing plate compensation curve on the basis of a printing plate compensation curve obtained by printing standards in the step S1;
C. setting of secondary printing conditions: loading the standard test file in the step S1 on the compensation curve of the coated printing plate, performing machine test again, finely adjusting and correcting the compensation curve of the coated printing plate, and controlling neutral gray density; controlling ash balance; controlling the density of the four-color solid; controlling the dot expansion to meet the requirement of ISO12647-2 on the color target after the printed sample is dried and the film is coated;
s5, obtaining a printing standard before film laminating:
collecting color target data, collecting printing density and collecting a matte CTP publishing curve of the preperitoneal standard specimen obtained in the step of S4;
s6, printing to quickly reach the required color standard before laminating:
according to the standard printing density before film lamination, the film lamination publishing compensation curve and the color tracing digital sample before film lamination, which are collected by testing, the required color before film lamination is quickly realized;
s7, standardizing a film laminating process;
s8, laminating to confirm that the color reaches the standard: coating the film by using the color tracing standard after the digital sample printed in the step S3 as a standard, and determining that the film reaches the standard;
and S9, batch production and goods inspection delivery.
Preferably, the test file in step S1 includes 1512 color patch elements of the standard target color, a representative picture of each tone of highlight-to-dark tones, and pictures of CMYK and RGB representative colors.
Preferably, the publishing printing conditions in the step S1 include plate making conditions in which the rotation speed of the cylinder is 215rpm, developing conditions in which the temperature of the developer is 29 ℃, printing conditions in which the printing speed is 9000rph, the printing pressure is 0.1mm, the reduction amount is 0.01mm, the dampening roller pressure is 6mm, and the cross-inking time of the printing press is 340S.
Preferably, the shop temperature in the printing conditions is 25 ℃ and the shop humidity is 50% RH.
Preferably, the drying oven temperature of the film coating condition in the step S1 is 60-65 ℃, the temperature of the laminating roller is 75-85 ℃, and the pressure of the roller is 150kgf/cm 2 ～180kgf/cm 2 。
Preferably, in the step S2, the alice 1isis instrument collects color target data (M1 mode) to generate the target icc after coating, the icc software is ProfileMaker pro5.0.10, and the generating icc is set as follows: file specification: large; and (3) perceptual presentation: a neutral gray mode; color gamut description: marking color; color separation-predefined: offset printing; color separation-color separation: ash component replacement of 2 nd; black starting point: 15 percent; maximum black: 100 percent; black width: 50; total ink amount: 330.
compared with the prior art, the invention has the beneficial effects that: the novel printing method for controlling the color of the film-coated product can ensure that the product after film coating can reach the delivery standard and simultaneously establish the printing standard before film coating by mutually matching the processes of manufacturing target standard data before and after film coating, establishing standard color preview and digital proofing output standard before film coating, establishing color matching, establishing printing color standard before film coating and controlling the color of the film coating, and ensuring that the mark can be met during printing; the new method can quickly realize that the product meets the ISO12647-2 regulation by printing, and the color change after film coating becomes predictable and controllable, and the color preview and digital proofing output of the colors of the printed matter before and after film coating can be realized by the printing data collected by the printing method, so that the production efficiency is improved, and the information accuracy and delivery standard of the communication with the product requirements of customers are improved.
Drawings
FIG. 1is a flow chart of a method of the present invention;
fig. 2 is a schematic diagram of dot gain contrast according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The novel printing method for controlling the color of the film-covered product comprises the following steps as shown in the attached figure 1:
s1, designing and manufacturing a test file, setting printing conditions and printing standards:
a: designing a test file;
b: setting of printing conditions: printing a color target test sample sheet, separately testing and collecting an optical film and a dummy film, and controlling neutral gray density; controlling ash balance; controlling the solid density of the four colors; controlling the printing sample sheet after the dot expansion and drying to meet the requirements of ISO 12647-2;
c: printing standard: the upper test plate is printed in a 210lpi screening mode, the equipment and material states are ensured to accord with the Yachang test research and development standard, and the printing conditions are as shown in the attached table I;
a first attached table: printing and publishing conditions
S2, transferring the image to a target icc after film covering by a visitor:
collecting color target data (M1 mode) by an Ali 1isis instrument to generate a target icc after film coating;
s3, color matching and color separation preview adjustment, and color tracing standard after printing a digital sample for film coating:
A. the optical film and matte film target data in the step S1 are used for color conversion and image adjustment and color separation preview of printed files with different image adjustment standards; the color standard digital proofing output is used for printing the color standard digital proofing output after the film is covered;
B. the digital proofing is used for the customer to deliver standard confirmation and communication and the color confirmation of the produced large goods;
s4, collecting the change data of the dots after film covering, calculating a film covering compensation curve and setting secondary printing conditions:
A. s1, after the sample sheet is coated with a matte film, collecting the dot gain change data, calculating the dot gain required by printing before film coating by reverse pushing, and performing dot compensation correction of the film coating product printing;
B. calculating a film covering compensation curve: acquiring dot expansion change data before and after film coating, and calculating a film coating printing plate compensation curve on the basis of a printing plate compensation curve obtained by printing standards in the step S1;
C. setting of secondary printing conditions: loading the standard test file in the step S1 on the compensation curve of the coated printing plate, performing machine test again, finely adjusting and correcting the compensation curve of the coated printing plate, and controlling neutral gray density; controlling ash balance; controlling the density of the four-color solid; controlling the dot expansion to meet the requirement of ISO12647-2 on the color target after the film is coated after the printed sample is dried;
and B, attaching a table II: coated printing plate compensation curve
S5, a method for obtaining a printing standard before film laminating:
collecting color target data, collecting printing density and collecting a smooth matte CTP publishing curve of the preperitoneal standard specimen obtained in the step of S4;
collected color target data; and (3) standard printing icc before film coating is manufactured and used for digital proofing as target output, and the printed digital proofing is used for color matching reference of printing film coating products in the printing process.
Collecting a CTP publishing curve of a matte film: the printing plate output device is used for outputting printing plates corresponding to the types of the coating films.
Collecting the printing density: the color matching control method is used for color matching control in the printing process and can quickly reach the color standard before film coating.
Attaching a third table: density adjustment of matte film
| Printed wet Density | K | C | M | Y |
| Normal product | 1.8±0.05 | 1.5±0.05 | 1.45±0.05 | 1.5±0.05 |
| Optical film product | 1.75±0.05 | 1.5±0.05 | 1.45±0.05 | 1.0±0.05 |
| Touch film with matte film | 1.9±0.05 | 1.62±0.05 | 1.65±0.05 | 1.03±0.05 |
S6, printing to quickly reach the required color standard before film laminating:
according to the collected pre-film-coating standard printing density, the film-coating publishing compensation curve and the pre-film-coating tracing digital sample, the required pre-film-coating color is quickly realized;
s7, standardizing the film covering process, standardizing the operation of the film covering process and keeping stability;
and (4) the attached table is four: control of film coating conditions
| Type of adhesive film | Speed of operation | Temperature of drying oven | Temperature of the laminating roller | Pressure of the cylinder |
| Optical cement | 15-35m/min | 60℃—65℃ | 75℃—85℃ | 150kgf/cm 2 —180kgf/cm 2 |
| Mat glue | 10-25m/min | 60℃—65℃ | 75℃—85℃ | 150kgf/cm 2 —180kgf/cm 2 |
S8, laminating to confirm that the color reaches the standard: coating the film by using the color tracing standard after the digital sample is printed in the step S3 as a standard, and determining that the film reaches the standard;
and S9, batch production and inspection delivery.
Further, the test file in step S1 includes 1512 color patch elements of the standard target color, representative pictures of each tone of highlight to dark, and pictures of representative colors of CMYK and RGB.
Further, the publishing printing conditions in the step S1 include plate making conditions in which the rotation speed of the cylinder is 215rpm, developing conditions in which the temperature of the developer is 29 ℃, printing conditions in which the printing speed is 9000rph, printing pressure of 0.1mm, the amount of reduction of diameter of 0.01mm, dampening roller pressure of 6mm, and press inking time of 340S.
Further, the shop temperature in the printing conditions was 25 ℃ and the shop humidity was 50% RH.
Further, the drying oven temperature of the film covering condition in the step S1 is 60-65 ℃, the temperature of the laminating roller is 75-85 ℃, and the pressure of the roller is 150kgf/cm 2 ～180kgf/cm 2 。
Further, in the step S2, an alice 1isis instrument collects color target data (M1 mode) to generate a target icc after film coating, wherein the icc manufacturing software is ProfileMaker pro5.0.10, and the generation of the icc is set as follows: file specification: large; and (3) perceptual presentation: a neutral gray mode; color gamut description: marking color; color separation-predefined: offset printing; color separation-color separation: ash component replacement of 2 nd; black starting point: 15 percent; maximum black: 100 percent; black width: 50; total ink amount: 330.
it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. A novel printing method for controlling the color of a film-covered product is characterized by comprising the following steps:
s1, designing and manufacturing a test file, setting printing conditions and printing standards:
a: designing a test file;
b: setting of printing conditions: printing a color target test sample sheet, separately testing and collecting an optical film and a dummy film, and controlling neutral gray density; controlling ash balance; controlling the solid density of the four colors; controlling the printing sample after the dot expansion and drying to meet the ISO12647-2 requirement;
c: printing standard: the upper test plate is printed in a 210lpi screening mode to ensure that the equipment and material states meet the Yachang test research and development standard;
s2, transferring a target icc after the incoming image is coated with a film:
collecting color target data (M1 mode) by an Ali 1isis instrument to generate a target icc after film coating;
s3, color matching and color separation preview adjustment, and color tracing standard after printing a digital sample for film coating:
A. the optical film and matte film target data in the step S1 are used for color conversion and image adjustment and color separation preview of printed files with different image adjustment standards; the color standard digital proofing output is used for printing the color standard digital proofing output after the film is covered;
B. the digital proofing is used for the confirmation and communication of the delivery standard of the customer and the confirmation of the color of the produced goods;
s4, acquiring change data of the coated net points, calculating a coating compensation curve and setting secondary printing conditions:
A. after the sample sheet obtained in the step S1 is coated with a matte film, collecting dot gain change data, calculating dot gain required by printing before film coating by reverse pushing, and performing dot compensation correction on the printing of a film coated product;
B. calculating a film covering compensation curve: acquiring dot expansion change data before and after film coating, and calculating a film coating printing plate compensation curve on the basis of a printing plate compensation curve obtained by printing standards in the step S1;
C. setting of secondary printing conditions: loading the standard test file in the step S1 on the compensation curve of the coated printing plate, performing machine test again, finely adjusting and correcting the compensation curve of the coated printing plate, and controlling neutral gray density; controlling ash balance; controlling the density of the four-color solid; controlling the dot expansion to meet the requirement of ISO12647-2 on the color target after the film is coated after the printed sample is dried;
s5, a method for obtaining a printing standard before film laminating:
collecting color target data, collecting printing density and collecting a matte CTP publishing curve of the preperitoneal standard specimen obtained in the step of S4;
s6, printing to quickly reach the required color standard before laminating:
according to the standard printing density before film lamination, the film lamination publishing compensation curve and the color tracing digital sample before film lamination, which are collected by testing, the required color before film lamination is quickly realized;
s7, standardizing a film laminating process;
s8, laminating to confirm that the color reaches the standard: coating the film by using the color tracing standard after the digital sample printed in the step S3 as a standard, and determining that the film reaches the standard;
and S9, batch production and inspection delivery.
2. The new color-controlled printing method for film-covered products according to claim 1, characterized in that: the test file in step S1 includes 1512 color patch elements of the standard target color, representative pictures of high to dark tone gradations, and pictures of CMYK and RGB representative colors.
3. The new color-controlled printing method for film-covered products according to claim 1, characterized in that: the publishing printing conditions in the step S1 include plate making conditions in which the rotation speed of the roller is 215rpm, developing conditions in which the temperature of the developer is 29 ℃, printing conditions in which the printing speed is 9000rph, the printing pressure is 0.1mm, the reduction amount is 0.01mm, the dampening roller pressure is 6mm, and the inking time of the printing press is 340S.
4. A novel method of color-controlled printing of film-covered products according to claim 3, characterized by: the shop temperature in the printing conditions was 25 ℃ and the shop humidity was 50% RH.
5. The new color-controlled printing method for film-covered products according to claim 1, characterized in that: the drying box temperature of the film covering condition in the step S1 is 60-65 ℃, the temperature of the attaching roller is 75-85 ℃, and the pressure of the roller is 150kgf/cm 2-180 kgf/cm 2.
6. The new color-controlled printing method for film-covered products according to claim 1, characterized in that: in the step S2, an alici 1isis instrument collects color target data (M1 mode) to generate an icc target after film coating, wherein the icc making software is ProfileMaker pro5.0.10, and the generation of the icc is set as follows: file specification: large; and (3) perceptual presentation: a neutral gray mode; color gamut description: marking color; color separation-predefined: offset printing; color separation-color separation: ash component replacement of 2 nd; black starting point: 15 percent; maximum black: 100 percent; black width: 50; total ink amount: 330.
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| CN202110853480.6A CN114987074A (en) | 2021-07-28 | 2021-07-28 | Novel printing method for controlling color of film-coated product |
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| CN202110853480.6A CN114987074A (en) | 2021-07-28 | 2021-07-28 | Novel printing method for controlling color of film-coated product |
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| CN110481154A (en) * | 2019-08-15 | 2019-11-22 | 北京雅昌艺术印刷有限公司 | A kind of control method and control system of the misalignment of overlay film printed matter |
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| CN111761955A (en) * | 2020-07-02 | 2020-10-13 | 深圳当纳利印刷有限公司 | Standardized color management method and device for packaging printing paper |
| CN112232456A (en) * | 2020-09-25 | 2021-01-15 | 广东中成卫星微电子发展有限公司 | Brand-new anti-counterfeiting realization method for color photos |
| CN112537148A (en) * | 2020-09-30 | 2021-03-23 | 湖北合信智能包装科技有限公司 | Method for matching colors of digital printing and flexography |
-
2021
- 2021-07-28 CN CN202110853480.6A patent/CN114987074A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004351733A (en) * | 2003-05-29 | 2004-12-16 | Nippon Photo Chemical Kk | Color management method |
| US20100067783A1 (en) * | 2008-09-16 | 2010-03-18 | Fujifilm Corporation | Method of and system for predicting print colors |
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Inventor after: Zhang Huanyou Inventor after: Zhang Yaokang Inventor after: Wei Xingli Inventor after: Ke Shuxiao Inventor before: Zhang Yaokang Inventor before: Wei Xingli Inventor before: Ke Shuxiao |
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Application publication date: 20220902 |
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