CN112026386A - Ultraviolet curing offset printing process capable of printing plane low relief effect - Google Patents
Ultraviolet curing offset printing process capable of printing plane low relief effect Download PDFInfo
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- CN112026386A CN112026386A CN201910474269.6A CN201910474269A CN112026386A CN 112026386 A CN112026386 A CN 112026386A CN 201910474269 A CN201910474269 A CN 201910474269A CN 112026386 A CN112026386 A CN 112026386A
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- 238000007639 printing Methods 0.000 title claims abstract description 237
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000007645 offset printing Methods 0.000 title claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 37
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 239000002199 base oil Substances 0.000 claims description 82
- 239000003921 oil Substances 0.000 claims description 82
- 238000007774 anilox coating Methods 0.000 claims description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 238000012772 sequence design Methods 0.000 claims description 2
- 238000001723 curing Methods 0.000 claims 7
- 238000003848 UV Light-Curing Methods 0.000 claims 3
- 239000000123 paper Substances 0.000 description 17
- 230000008602 contraction Effects 0.000 description 5
- 238000004049 embossing Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
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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
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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
- B41M1/18—Printing one ink over another
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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
- B41M1/26—Printing on other surfaces than ordinary paper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/008—Sequential or multiple printing, e.g. on previously printed background; Mirror printing; Recto-verso printing; using a combination of different printing techniques; Printing of patterns visible in reflection and by transparency; by superposing printed artifacts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/06—Veined printings; Fluorescent printings; Stereoscopic images; Imitated patterns, e.g. tissues, textiles
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- 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
- B41M7/0081—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using electromagnetic radiation or waves, e.g. ultraviolet radiation, electron beams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M2205/00—Printing methods or features related to printing methods; Location or type of the layers
- B41M2205/42—Multiple imaging layers
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Vascular Medicine (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Toxicology (AREA)
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Printing Methods (AREA)
Abstract
The invention discloses an ultraviolet curing offset printing process capable of printing a plane low relief effect, which comprises the following process steps: A. designing a low relief pattern and making a draft: designing a low relief pattern through design software of a computer and manufacturing a draft with the low relief pattern, wherein the low relief pattern comprises a relief part and a contour line part which is more convex than the relief part; B. selecting a proper offset press and designing a color sequence; B. manufacturing a printing plate: inputting the picture draft into a plate making machine, and making a printing plate by a CTP plate; C. selecting a printing material: selecting a printing material with a proper dyne value according to requirements; D. starting up and printing: and D, placing the printing material obtained in the step C into a paper feeding mechanism of an offset press, starting up the offset press for printing, and collecting the printing material which is a printing finished product after the printing process is finished by a paper collecting mechanism.
Description
Technical Field
The invention relates to the technical field of ultraviolet curing offset printing processes, in particular to an ultraviolet curing offset printing process capable of printing a plane low relief effect.
Background
At present, the printing relief effect of the packaging and printing industry mainly comprises two processes: firstly, stamping is carried out on paper or a film, and the embossing effect is shown through a concave-convex arc shape in the process of manufacturing an embossing stamping plate; secondly, high-precision full-automatic silk-screen printing equipment is used for printing a plurality of layers of gloss oil on the paperboard or film in an overlapping manner, and the process has the defects of low printing speed, low printing efficiency, high equipment requirement and extremely high printing cost. The conventional ultraviolet curing offset printing process cannot print the effect of the bas-relief, mainly because of the following reasons: the printing thickness of the ink is difficult to achieve the concave-convex effect of the bas-relief.
Therefore, how to realize an ultraviolet curing offset printing process which can print out a bas-relief effect with strong stereoscopic impression, has novel and simple process design, high printing efficiency and lower printing cost and can quickly print in batch is a technical problem to be solved in the industry.
Disclosure of Invention
The invention mainly aims to provide an ultraviolet curing offset printing process capable of printing a plane bas-relief effect, and aims to realize an ultraviolet curing offset printing process capable of printing a plane bas-relief effect, which has the advantages of strong stereoscopic impression, novel and simple process design, scientific and reasonable design principle, full-automatic printing, high printing efficiency, lower printing cost and capability of being quickly printed in batch.
The invention provides an ultraviolet curing offset printing process capable of printing a plane low relief effect, which comprises the following process steps:
A. designing a low relief pattern and making a draft: designing a low relief pattern through design software of a computer and manufacturing a draft with the low relief pattern, wherein the low relief pattern comprises a relief part and a contour line part which is more convex than the relief part;
B. selecting a proper offset press and designing a color sequence: the offset press comprises a paper feeding mechanism, a paper collecting mechanism, a base with a transmission mechanism and arranged between the paper feeding mechanism and the paper collecting mechanism, and a plurality of printing seats arranged on the base, wherein the printing seats sequentially comprise a first color printing seat, a second color printing seat, a third color printing seat, a fourth color printing seat, a fifth color printing seat, a first base oil printing seat capable of printing first base oil, a first face oil printing seat capable of printing first face oil, a second base oil printing seat capable of printing second base oil, a second face oil printing seat capable of printing second face oil, a first ultraviolet light curing lamp is arranged at the rear end of the fourth color printing seat, a second ultraviolet light curing lamp is arranged at the rear end of the first face oil printing seat, a third ultraviolet light curing lamp is arranged at the rear end of the second face oil printing seat, after a proper offset press is selected, color sequence design is carried out according to colors required by a low relief pattern, and the color arrangement sequence in the color sequence corresponds to the printing flow sequence, adding corresponding printing ink into the ink grooves of the printing bases according to a printing process sequence, wherein the dyne value of the first surface oil is larger than the dyne value of the first bottom oil and the dyne value of the second bottom oil, and the dyne value of the second surface oil is larger than the dyne value of the first bottom oil and the dyne value of the second bottom oil;
B. manufacturing a printing plate: inputting the draft into a plate making machine, manufacturing printing plates by a CTP plate, and respectively installing one printing plate on each printing seat, wherein the embossment part of the bas-relief pattern of the first base oil printing plate on the first base oil printing seat is hollowed out;
C. selecting a printing material: selecting a printing material with a proper dyne value according to requirements;
D. starting up and printing: placing the printing material in the step C into a paper feeding mechanism of an offset press, starting up the offset press for printing, printing a plane pattern after the printing material sequentially passes through a first color printing seat, a second color printing seat, a third color printing seat, a fourth color printing seat and a fifth color printing seat in the printing process, then feeding the printing material into a first base oil printing seat, printing first base oil on the plane pattern by the first base oil printing seat, feeding the printing material into a first base oil printing seat, covering the first base oil on the first base oil by the first base oil printing seat, then drying and curing the first base oil and the first base oil by a second ultraviolet curing lamp, wherein the plane pattern shows a bas-relief effect and forms a relief part of the bas-relief pattern, feeding the printing material into a second base oil printing seat, and printing the second base oil on the contour part of the bas-relief pattern by the second base oil printing seat to enable the contour part of the bas-relief pattern to be protruded than the relief part, then the printing material enters a second face oil printing seat, the second face oil printing seat prints second face oil on second base oil so as to obviously increase the height of a contour line part and enhance the stereoscopic impression, the relief part and the contour line part present a bas-relief effect with the stereoscopic impression, then the second base oil and the second face oil are dried and solidified through a third ultraviolet light curing lamp, and the printing material is formed into a printing finished product after the printing process is finished and is collected by a paper collecting mechanism.
Preferably, the dyne value of the first base oil is less than or equal to 22, the dyne value of the second base oil is 28, the dyne values of the first surface oil and the second surface oil are both greater than or equal to 38, and the first surface oil and the second surface oil are both printed in two layers during printing.
Preferably, the printing material is PEE film or PP film with a dyne value of 38, or the printing material is gold and silver card paper or white board paper with a dyne value of more than or equal to 38.
Preferably, the power of the first ultraviolet curing lamp, the power of the second ultraviolet curing lamp and the power of the third ultraviolet curing lamp are all 16.5 kw.
Preferably, the first side oil printing seat of the offset printing machine is provided with an oiling anilox roller with the screen line number of 100, and the second side oil printing seat is provided with an oiling anilox roller with the screen line number of 60.
The invention provides an ultraviolet curing offset printing process capable of printing a plane low relief effect, wherein after a printing material is printed, a better relief radian effect is displayed through repulsive contraction of base oil and surface oil, a first base oil is printed on a set first base oil printing plate, a first surface oil is printed on the first base oil, a second base oil is overprinted on the contour line part of the first base oil, and then the surface oil with a high dyne value is printed. The process fully utilizes the contraction principle that the dyne value of the base oil is low and the dyne value of the face oil is high, two layers of face oil form a three-dimensional radian edge through tension repulsion, so that the concave-convex effect is generated, the bas-relief effect is presented and controllable. The invention realizes the ultraviolet curing offset printing process which can present the bas-relief effect with strong stereoscopic impression, has novel and simple process design, scientific and reasonable design principle, full-automatic printing, high printing efficiency and lower printing cost, and can print the plane bas-relief effect quickly in batch.
Drawings
Fig. 1 is a diagram illustrating the effects of a bas-relief pattern printed by an embodiment of the uv-curing offset printing process for printing a flat bas-relief effect according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, an embodiment of the uv-curing offset printing process for printing a flat bas-relief effect according to the present invention is provided, which comprises the following steps:
A. designing a low relief pattern and making a draft: designing a low relief pattern through design software of a computer and manufacturing a draft with the low relief pattern, wherein the low relief pattern comprises a relief part 101 and a contour line part 102 which is more convex than the relief part 101;
B. selecting a proper offset press and designing a color sequence: the offset press comprises a paper feeding mechanism, a paper receiving mechanism, a base with a transmission mechanism and a plurality of printing seats, wherein the base is arranged between the paper feeding mechanism and the paper receiving mechanism, the printing seats comprise a first color printing seat capable of printing black, a second color printing seat capable of printing blue, a third color printing seat capable of printing red, a fourth color printing seat capable of printing yellow, a fifth color printing seat capable of printing spot color, a first base oil printing seat capable of printing first base oil, a first face oil printing seat capable of printing first face oil, a second base oil printing seat capable of printing second base oil and a second face oil printing seat capable of printing second face oil in sequence, a first ultraviolet curing lamp is arranged at the rear end of the fourth color printing seat, a second ultraviolet curing lamp is arranged at the rear end of the first face oil printing seat, a third ultraviolet curing lamp is arranged at the rear end of the second face oil printing seat, and a proper offset press is selected, designing a color sequence according to colors required by the bas-relief pattern, wherein the color sequence in the color sequence corresponds to the printing process sequence, and the corresponding ink is added into the ink grooves of the printing bases according to the printing process sequence, in the embodiment, the color sequence is as follows: black, blue, red, yellow, spot color. The dyne value of the first surface oil is greater than the dyne value of the first bottom oil and the dyne value of the second bottom oil, the dyne value of the second surface oil is greater than the dyne value of the first bottom oil and the dyne value of the second bottom oil, and the dyne value of the surface oil is greater than the dyne value of the bottom oil, so that the surface tension of the surface oil is greater than the surface tension of the bottom oil.
B. Manufacturing a printing plate: inputting the picture draft into a plate making machine, manufacturing printing plates by a CTP plate, and respectively installing one printing plate on each printing seat, wherein the relief part 101 of the bas-relief pattern of the first base oil printing plate on the first base oil printing seat is hollowed out;
C. selecting a printing material: selecting a printing material with a proper dyne value according to requirements;
D. starting up and printing: putting the printing material in the step C into a paper feeding mechanism of an offset press, starting up the press for printing, printing a plane pattern after the printing material sequentially passes through a first color printing seat, a second color printing seat, a third color printing seat, a fourth color printing seat and a fifth color printing seat in the printing process, then enabling the printing material to enter a first base oil printing seat, printing first base oil on the plane pattern by the first base oil printing seat, enabling the printing material to enter the first base oil printing seat, covering the first base oil on the first base oil by the first base oil printing seat, then drying and curing the first base oil and the first base oil through a second ultraviolet light curing lamp, enabling the plane pattern to show a bas-relief effect and form a relief part 101 of the bas-relief pattern, enabling the printing material to enter the second base oil printing seat, printing second base oil on a contour line part 102 of the bas-relief pattern by the second base oil printing seat to enable the contour part 102 to be more protruded than the relief part 101, then the printing material enters a second face oil printing seat, the second face oil printing seat prints second face oil on second base oil so as to obviously increase the height of the contour line part 102 to enhance the stereoscopic impression, the embossment part 101 and the contour line part 102 present a bas-relief effect with the stereoscopic impression, then the second base oil and the second face oil are dried and solidified through a third ultraviolet light curing lamp, and the printing material is a printing finished product after the printing process is finished and is collected by a paper collecting mechanism.
The dyne value of the first base oil is less than or equal to 22, the dyne value of the second base oil is 28, the dyne values of the first surface oil and the second surface oil are both greater than or equal to 38, and the first surface oil and the second surface oil are both printed in two layers during printing.
The invention provides an ultraviolet curing offset printing process capable of printing a plane low relief effect, after a printing material is printed, a better relief radian effect is shown through repulsive contraction of base oil and surface oil, a first base oil is printed on a set first base oil printing plate, a first surface oil is printed on the first base oil, a second base oil is overprinted on a contour line part 102 of the first base oil, and then the surface oil with a high dyne value is printed, so that three types of oil with different tensions are matched, the tension contraction repulsion of the base oil and the surface oil can be realized, the height of the contour line part 102 can be obviously increased through combining multilayer printing of the base oil and the surface oil, the stereoscopic impression is enhanced, the high stereoscopic impression low relief effect is realized, and the low relief effect is printed by adopting the ultraviolet curing offset printing process. The process fully utilizes the contraction principle that the dyne value of the base oil is low and the dyne value of the face oil is high, two layers of face oil form a three-dimensional radian edge through tension repulsion, so that the concave-convex effect is generated, the bas-relief effect is presented and controllable.
The printing material is PEE film or PP film with a dyne value of 38, or gold and silver card paper or white board paper with a dyne value of more than or equal to 38.
The power of the first ultraviolet curing lamp, the power of the second ultraviolet curing lamp and the power of the third ultraviolet curing lamp are all 16.5 kw.
An oiling anilox roller with the screen line number of 100 is installed on a first surface oil printing seat of the offset printing machine, and an oiling anilox roller with the screen line number of 60 is installed on a second surface oil printing seat of the offset printing machine.
The speed of the offset press is 8000-8500 rpm.
The invention realizes the ultraviolet curing offset printing process which can present the bas-relief effect with strong stereoscopic impression, has novel and simple process design, scientific and reasonable design principle, full-automatic printing, high printing efficiency and lower printing cost, and can print the plane bas-relief effect quickly in batch.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, are included in the scope of the present invention.
Claims (5)
1. An ultraviolet curing offset printing process capable of printing a plane low relief effect is characterized by comprising the following process steps:
A. designing a low relief pattern and making a draft: designing a low relief pattern through design software of a computer and manufacturing a draft with the low relief pattern, wherein the low relief pattern comprises a relief part and a contour line part which is more convex than the relief part;
B. selecting a proper offset press and designing a color sequence: the offset press comprises a paper feeding mechanism, a paper collecting mechanism, a base with a transmission mechanism and arranged between the paper feeding mechanism and the paper collecting mechanism, and a plurality of printing seats arranged on the base, wherein the printing seats sequentially comprise a first color printing seat, a second color printing seat, a third color printing seat, a fourth color printing seat, a fifth color printing seat, a first base oil printing seat capable of printing first base oil, a first face oil printing seat capable of printing first face oil, a second base oil printing seat capable of printing second base oil, a second face oil printing seat capable of printing second face oil, a first ultraviolet light curing lamp is arranged at the rear end of the fourth color printing seat, a second ultraviolet light curing lamp is arranged at the rear end of the first face oil printing seat, a third ultraviolet light curing lamp is arranged at the rear end of the second face oil printing seat, after a proper offset press is selected, color sequence design is carried out according to colors required by a low relief pattern, and the color arrangement sequence in the color sequence corresponds to the printing flow sequence, adding corresponding printing ink into the ink grooves of the printing bases according to a printing process sequence, wherein the dyne value of the first surface oil is larger than the dyne value of the first bottom oil and the dyne value of the second bottom oil, and the dyne value of the second surface oil is larger than the dyne value of the first bottom oil and the dyne value of the second bottom oil;
B. manufacturing a printing plate: inputting the draft into a plate making machine, manufacturing printing plates by a CTP plate, and respectively installing one printing plate on each printing seat, wherein the embossment part of the bas-relief pattern of the first base oil printing plate on the first base oil printing seat is hollowed out;
C. selecting a printing material: selecting a printing material with a proper dyne value according to requirements;
D. starting up and printing: placing the printing material in the step C into a paper feeding mechanism of an offset press, starting up the offset press for printing, printing a plane pattern after the printing material sequentially passes through a first color printing seat, a second color printing seat, a third color printing seat, a fourth color printing seat and a fifth color printing seat in the printing process, then feeding the printing material into a first base oil printing seat, printing first base oil on the plane pattern by the first base oil printing seat, feeding the printing material into a first base oil printing seat, covering the first base oil on the first base oil by the first base oil printing seat, then drying and curing the first base oil and the first base oil by a second ultraviolet curing lamp, wherein the plane pattern shows a bas-relief effect and forms a relief part of the bas-relief pattern, feeding the printing material into a second base oil printing seat, and printing the second base oil on the contour part of the bas-relief pattern by the second base oil printing seat to enable the contour part of the bas-relief pattern to be protruded than the relief part, then the printing material enters a second face oil printing seat, the second face oil printing seat prints second face oil on second base oil so as to obviously increase the height of a contour line part and enhance the stereoscopic impression, the relief part and the contour line part present a bas-relief effect with the stereoscopic impression, then the second base oil and the second face oil are dried and solidified through a third ultraviolet light curing lamp, and the printing material is formed into a printing finished product after the printing process is finished and is collected by a paper collecting mechanism.
2. The UV-curable offset printing process capable of printing flat low relief effects according to claim 1, wherein the dyne value of the first base oil is 22 or less, the dyne value of the second base oil is 28, the dyne values of the first top oil and the second top oil are 38 or more, and both the first top oil and the second top oil are printed in two layers.
3. The UV-curable offset printing process capable of printing flat low-relief effects according to claim 1 or 2, wherein the printing material is PEE film or PP film with a dyne value of 38, or gold and silver card paper or white board paper with a dyne value of 38 or more.
4. The UV-curable offset printing process capable of printing flat low relief effects according to claim 3, wherein the first UV-curing lamp, the second UV-curing lamp and the third UV-curing lamp are all at a power of 16.5 kw.
5. The UV-curable offset printing process capable of printing flat bas-relief effects according to claim 4, wherein the first squeegee base of the offset printing press is equipped with an oiling anilox roller having a screen line number of 100, and the second squeegee base is equipped with an oiling anilox roller having a screen line number of 60.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910474269.6A CN112026386A (en) | 2019-06-03 | 2019-06-03 | Ultraviolet curing offset printing process capable of printing plane low relief effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910474269.6A CN112026386A (en) | 2019-06-03 | 2019-06-03 | Ultraviolet curing offset printing process capable of printing plane low relief effect |
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| CN112026386A true CN112026386A (en) | 2020-12-04 |
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| CN201910474269.6A Pending CN112026386A (en) | 2019-06-03 | 2019-06-03 | Ultraviolet curing offset printing process capable of printing plane low relief effect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114179534A (en) * | 2021-12-10 | 2022-03-15 | 重庆宏劲印务有限责任公司 | Printing method for increasing concave-convex texture and printing method for packaging box |
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Application publication date: 20201204 |