CN105856883A - Digital colorful water-free offset printing technology for offset printing - Google Patents
Digital colorful water-free offset printing technology for offset printing Download PDFInfo
- Publication number
- CN105856883A CN105856883A CN201610268487.0A CN201610268487A CN105856883A CN 105856883 A CN105856883 A CN 105856883A CN 201610268487 A CN201610268487 A CN 201610268487A CN 105856883 A CN105856883 A CN 105856883A
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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
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
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- Manufacture Or Reproduction Of Printing Formes (AREA)
- Printing Methods (AREA)
Abstract
The invention discloses a digital colorful water-free offset printing technology for offset printing. The technology comprises the following steps that firstly, plate making is conducted before printing, film production is directly conducted through a computer, and plate burning is conducted on a film; secondly, printing plate exposure is conducted, a printing plate is installed on an imaging roller, the printing plate is scanned through a laser diode for imaging, and accordingly an electronic latent image is formed; thirdly, image developing is conducted, the imaged printing plate is subjected to inking through the potential difference between a recycling roller and the imaging roller and the characteristics of electronic printing ink, and an actual image is formed; fourthly, removing treatment is conducted, and residual liquid and printing ink on the surface of the imaged printing plate are removed; fifthly, first-time printing ink transferring is conducted, and an electrified printing ink layer on the surface of the printing plate is transferred to an electrified rubber roller; sixthly, cleaning work is done, all residual printing ink and static charges on the imaged printing plate are removed, and discharge reset is conducted on the imaged printing plate; seventhly, second-time printing ink transferring is conducted; eighthly, color ink jet is conducted, the printing ink is injected to a printing stock from a very small ink jet head with a certain speed; and ninthly, laser printing is conducted.
Description
Technical field
The present invention relates to safety glass preparing technical field, be specifically related to the preparation technology of a kind of automobile steel vacuum doubling glass.
Background technology
Every printing part does not all have difference between high and low other with non-printing part, that is be plane, water oil not phase mixing principle is utilized to make plating part keep one layer of oil film being rich in oils and fats, rather than the space of a whole page in plating part then can absorb suitable moisture, imagination is after space of a whole page curing ink, and plating part is just repelled moisture and absorbed ink, rather than plating part then absorbs moisture and forms anti-ink effect, the method utilizing this kind of method printing, is known as " lithographic printing ".
After lithographic printing is developed by early stage lithographic printing, because of its plate-making and be printed with the individual character of its uniqueness, simultaneously the most extremely simple and with low cost in work, therefore constantly studied by brainstrust in modern age and improve, and become that printing now is upper uses most methods.
Lithographic printing in early days is lithographic plate flat press, develop into lithographic plate circle die mould and circle version circle die mould two kinds finally, lithographic plate circle die mould machine major part uses in special printing, such as the machine etc. of working out a draft of proof, the most all improves circle version circle die mould as the machine at printing paper etc.Lithographic plate is justified die mould that is is that printing surface keeps flat, and pressure portion is the pressure cylinder of drum-type, and the lithographic plate circle press device in this kind of much like letterpress of mode of printing is the same.Circle version circle die mould is then that galley is wrapped on cylinder referred to as version cylinder, and on machine, another one cylinder is enclosed with the referred to as rubber tube of rubber, and pressure portion is both the pressure cylinder of drum-type, and this kind is referred to as " Ke's formula printer " with the machine of three kinds of basic roller structures.
Owing to the areas on lithographic printing plate and non-graphic part are nearly in approximately the same plane; when printing; in order to be able to make ink distinguish printing elements or non-graphic part; first supplied water to the non-graphic part of forme by the water supply installation of forme parts, thus the non-graphic part protecting forme is not soaked by ink.Then, by the ink-feeding device of printing unit to forme ink supply, owing to the non-graphic part of forme is protected by water, therefore, ink can only be fed to printing elements.It is finally by the ink transfer on forme to blanket, recycles the pressure between blanket cylinder and impression cylinder, by the ink transfer on blanket to stock, complete one-step print, so, lithographic printing is one indirectly mode of printing.
Lithographic printing repels each other principle based on profit, and its typography process is as follows:
First, lithographic plate is formed the image section of inking.Image can directly draw on lithographic plate with oiliness pencil, it is also possible to photographic means is formed.
Secondly, supply water to forme.Because profit repels each other, water is repelled by image, so water covers the non-graphic part of forme.
Again, covering one layer of ink to the whole space of a whole page, because profit repels each other, ink is repelled by water section, so ink is attached on oiliness image.
Then, paper is stamped at lithographic plate surface, and the image of inking has also been transferred on paper.
Because of the impact of glue during printing, tone rendering power lowers, and vividness lacks.Space of a whole page ink thin (70% ability can only be showed, so the lamp box poster of Ke Shiyin has to pass through printed on both sides and just can strengthen its color and luster).Special printing application is limited, and in printing process, paper rubs mutually with image, and image will soon be worn, especially true when forme is on the printer run up.
Summary of the invention
For problem above, the invention provides the color digital driography technique of a kind of offset printing, can effectively solve the problem in background technology.
To achieve these goals, the technical solution used in the present invention is as follows: the color digital driography technique of a kind of offset printing, comprises the steps:
(1) making sheet before print: use the direct film-making of computer, it would be desirable to the graph text information of printing, inputs laser photocomposing machine after information processing and grating image process, directly exports film, film is carried out printing down；
(2) plate exposure: be arranged on by forme on imaging roller, uses laser diode scanning forme imaging, thus forms latent electronic image；
(2) image developing: utilize the potential difference and e-inks characteristic reclaimed between cylinder and imaging cylinders, on imaged printing form, inking forms the image of reality；
(3) removing processes: be cleared into the unnecessary liquid of picture plate surface and ink, forme image-text area and non-graphic region are cleaned and compression processes, by means of the mechanical pressure between forme drum and other associated drum and electrostatic force, the liquid that the non-graphic region of plate surface is used as ink particle carrier is disposed, the unnecessary liquid of areas is disposed, so that the ink particle transferring to plate surface is closely adhered to together；
(4) ink transfer for the first time: under the effect of electrostatic force, the charged ink layer of plate surface is transferred on charged rubber roller；(5) cleaning work: remove all residual inks and electrostatic charge on imaged printing form, and to its discharge reduction；
(6) ink transfer for the second time: allow rubber roller continue to rotate and it is heated, therefore the e-inks on its surface is heated, ink particle part is caused to melt and mix, composition heat and the aqueous colloid of band stickiness, when ink contacts with printable fabric surface, due to the fusion temperature of printable fabric temperature ink particle to be significantly lower than, ink particle fast setting also adheres to stock surface, and ink layer is completely stripped of the primary former from blanket；
(7) color jet-ink: be ejected into stock from fine ink gun with certain speed by ink, realizes the reproduction of inked image finally by the interaction of ink Yu stock；
(8) laser printing: the forme after ink-jet is printed by color laser printing equipment.
According to technique scheme, described step (1) uses CTP, it would be desirable to the graph text information of printing, after information processing and grating image process, carry out LCD soft proof technique, go out color proof by digital printer, approved by client, more directly make a plate.
According to technique scheme, the ink removed from plate surface in described step (4) is reclaimed by take-up reel, delivers to separator and filters out fluid for reusing.
According to technique scheme, in described step (6), color ink gun uses hot bubble type ink jet head or piezoelectric ink-jet head.
According to technique scheme, after described step (6) color jet-ink technique completes, stoving process need to be carried out.
Beneficial effects of the present invention:
" information source " required for leaflet of the present invention arises directly from digital information, the mode processing information source is also digital form, between information source and final leaflet, i.e. there is not tradition prepress treatment process, during this, do not have printing materials such as such as printing liquid medicine required for film, film setter and film plate development；Use the indirect printing of blanket cylinder, i.e. utilize middle roller to transfer on final printable fabric from plate cylinder by the ink being loaded with graph text information, it is possible to achieve 800dpi image output resolution ratio, it is possible to resolve the printing of 6 colors even more multicolour product；This technique is not related to the techniques such as water yield setting, ink-water balance regulation, can effectively prevent from causing the excessive wear of forme due to forme and the friction of stock during printing, utilize indirect printing technique can make up the irregularity degree on stock surface, ink can be fully contacted with stock, to ensure that transfer pressure uniformly acts on stock surface so that ink smoothly can be transferred on printable fabric from blanket.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Embodiment
The color digital driography technique of a kind of offset printing, comprises the steps:
(1) making sheet before print: use the direct film-making of computer, it would be desirable to the graph text information of printing, inputs laser photocomposing machine after information processing and grating image process, directly exports film, film is carried out printing down；
Or employing CTP, it would be desirable to the graph text information of printing, after information processing and grating image process, is carried out LCD soft proof technique, goes out color proof by digital printer, approved by client, more directly make a plate.
(2) plate exposure: be arranged on by forme on imaging roller, uses laser diode scanning forme imaging, thus forms latent electronic image；Spectrum assignment machine controls the opening and closing of laser beam according to being modulated the graph text information processed, part corresponding with page image-text area on forme is exposed, the electrostatic charge making these regions neutralizes, thus generates invisible electrostatic latent image at plate surface.
(3) image developing: utilize the potential difference and e-inks characteristic reclaimed between cylinder and imaging cylinders, on imaged printing form, inking forms the image of reality；
Its principle: owing to development roller and forme are all with different voltage, then between the forme drum being rotating and development roller, powerful electrostatic force is created, forme image-text area after exposure-processed is charged less (former electric charge has been partially neutralized), rather than image-text area is charged more, owing to ink is charged, by means of the electrostatic force between forme drum and development roller, charged particle in ink attracted to image-text area, the a lot of electric charge of non-graphic region clustering, therefore charged ink particle is repelled, ink droplet is made to migrate towards development roller, deliver to ink reservoir by take-up reel after being received reuse.
(3) removing processes: be cleared into the unnecessary liquid of picture plate surface and ink, forme image-text area and non-graphic region are cleaned and compression processes, by means of the mechanical pressure between forme drum and other associated drum and electrostatic force, the liquid that the non-graphic region of plate surface is used as ink particle carrier is disposed, the unnecessary liquid of areas is disposed, so that the ink particle transferring to plate surface is closely adhered to together；The ink removed from plate surface is reclaimed by take-up reel, delivers to separator and filters out fluid for reusing.
(4) ink transfer for the first time: under the effect of electrostatic force, the charged ink layer of plate surface is transferred on charged rubber roller；
(5) cleaning work: remove all residual inks and electrostatic charge on imaged printing form, and to its discharge reduction；So far, plate surface experienced by a complete swing circle, waits and charging next time, gets ready for the next print cycle.
(6) ink transfer for the second time: allow rubber roller continue to rotate and it is heated, therefore the e-inks on its surface is heated, ink particle part is caused to melt and mix, composition heat and the aqueous colloid of band stickiness, when ink contacts with printable fabric surface, due to the fusion temperature of printable fabric temperature ink particle to be significantly lower than, ink particle fast setting also adheres to stock surface, and ink layer is completely stripped of the primary former from blanket；
(7) color jet-ink: be ejected into stock from fine ink gun with certain speed by ink, realizes the reproduction of inked image finally by the interaction of ink Yu stock；Use hot bubble type ink jet head and piezoelectric ink-jet head；
Hot bubble type ink jet head is the shower nozzle that profit is heated by resistive ink-jet printer, makes ink vaporisation produce bubble, and air bubble expansion is by ink ejection nozzles, it is imprinted on paper, the top of piezoelectric ink-jet head is print cartridge, and in print cartridge, ink flows to cartridge by the effect of gravity, but will not spray from nozzle.
Print data applies micro voltage through decoding and drive circuit on micro-piezoelectric patches, makes drops out from nozzles spray, and the droplet size of ejection is little, without any starlike scatterplot, the most do not produce vaporific diffusion, it is possible to achieve high-resolution, it addition, the service life of printhead is long.
(8) laser printing: the forme after ink-jet is printed by color laser printing equipment.
Based on above-mentioned, it is an advantage of the current invention that, " information source " required for leaflet of the present invention arises directly from digital information, the mode processing information source is also digital form, between information source and final leaflet, i.e. there is not tradition prepress treatment process, during this, do not have printing materials such as such as printing liquid medicine required for film, film setter and film plate development；Use the indirect printing of blanket cylinder, i.e. utilize middle roller to transfer on final printable fabric from plate cylinder by the ink being loaded with graph text information, it is possible to achieve 800dpi image output resolution ratio, it is possible to resolve the printing of 6 colors even more multicolour product；This technique is not related to the techniques such as water yield setting, ink-water balance regulation, can effectively prevent from causing the excessive wear of forme due to forme and the friction of stock during printing, utilize indirect printing technique can make up the irregularity degree on stock surface, ink can be fully contacted with stock, to ensure that transfer pressure uniformly acts on stock surface so that ink smoothly can be transferred on printable fabric from blanket.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.
Claims (5)
1. the color digital driography technique of an offset printing, it is characterised in that comprise the steps:
(1) making sheet before print: use the direct film-making of computer, it would be desirable to the graph text information of printing, at information processing and grating image
Input laser photocomposing machine after reason, directly export film, film is carried out printing down；
(2) plate exposure: be arranged on by forme on imaging roller, uses laser diode scanning forme imaging, thus forms electronics and dive
Picture；
(3) image developing: utilize the potential difference and e-inks characteristic, inking shape on imaged printing form reclaimed between cylinder and imaging cylinders
Become actual image；
(4) removing processes: is cleared into the unnecessary liquid of picture plate surface and ink, carries out forme image-text area and non-graphic region clearly
Clean and compression processes, by means of the mechanical pressure between forme drum and other associated drum and electrostatic force, and non-plate surface
The liquid that image-text area uses as ink particle carrier is disposed, and the unnecessary liquid of areas is disposed, so that transferring to
The ink particle of plate surface is closely adhered to together；
(5) ink transfer for the first time: under the effect of electrostatic force, the charged ink layer of plate surface is transferred on charged rubber roller；
(6) cleaning work: remove all residual inks and electrostatic charge on imaged printing form, and to its discharge reduction；
(7) ink transfer for the second time: allowing rubber roller continue to rotate and heat it, therefore the e-inks on its surface is heated,
Causing ink particle part melt and mix, composition heat and the aqueous colloid of band stickiness, when ink and printable fabric surface
During contact, due to the fusion temperature of printable fabric temperature ink particle to be significantly lower than, ink particle fast setting also adheres to hold
Print thing surface, ink layer is completely stripped of the primary former from blanket；
(8) color jet-ink: be ejected into stock from fine ink gun with certain speed by ink, finally by ink and printing
The interaction of thing realizes the reproduction of inked image；
(9) laser printing: the forme after ink-jet is printed by color laser printing equipment.
The color digital driography technique of a kind of offset printing the most according to claim 1, it is characterised in that described step (1)
Use CTP, it would be desirable to the graph text information of printing, after information processing and grating image process, carry out screen
Soft proofing technique, goes out color proof by digital printer, is approved by client, more directly makes a plate.
The color digital driography technique of a kind of offset printing the most according to claim 1, it is characterised in that described step (4)
In the ink removed from plate surface reclaimed by take-up reel, deliver to separator and filter out fluid for reusing.
The color digital driography technique of a kind of offset printing the most according to claim 1, it is characterised in that described step (8)
Middle color ink gun uses hot bubble type ink jet head or piezoelectric ink-jet head.
The color digital driography technique of a kind of offset printing the most according to claim 1, it is characterised in that described step (8)
After color jet-ink technique completes, stoving process need to be carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610268487.0A CN105856883A (en) | 2016-04-26 | 2016-04-26 | Digital colorful water-free offset printing technology for offset printing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610268487.0A CN105856883A (en) | 2016-04-26 | 2016-04-26 | Digital colorful water-free offset printing technology for offset printing |
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| CN105856883A true CN105856883A (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610268487.0A Pending CN105856883A (en) | 2016-04-26 | 2016-04-26 | Digital colorful water-free offset printing technology for offset printing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108394186A (en) * | 2018-05-25 | 2018-08-14 | 江西双林彩印包装有限公司 | A kind of printing equipment convenient for flash baking based on environmentally protective printing technology |
| CN113561625A (en) * | 2021-07-22 | 2021-10-29 | 佛山市顺德区容桂意达电子薄膜器件有限公司 | High-speed printing device and method for realizing personalized patterns based on electrostatic printing technology |
| CN117944377A (en) * | 2024-03-27 | 2024-04-30 | 淮安市康诺克彩印有限公司 | Printing equipment capable of scraping dry ink for wine box printing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108394186A (en) * | 2018-05-25 | 2018-08-14 | 江西双林彩印包装有限公司 | A kind of printing equipment convenient for flash baking based on environmentally protective printing technology |
| CN113561625A (en) * | 2021-07-22 | 2021-10-29 | 佛山市顺德区容桂意达电子薄膜器件有限公司 | High-speed printing device and method for realizing personalized patterns based on electrostatic printing technology |
| CN117944377A (en) * | 2024-03-27 | 2024-04-30 | 淮安市康诺克彩印有限公司 | Printing equipment capable of scraping dry ink for wine box printing |
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Effective date of registration: 20181130 Address after: 523710 Shigu Village, Tangxia Town, Dongguan City, Guangdong Province Applicant after: Dongguan Huacheng environmental protection packaging Polytron Technologies Inc Address before: 523112 Dongcheng District main mountain village, Dongguan City, Guangdong Applicant before: Dongguan Shanghe Voion Printing Co., Ltd. |
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Application publication date: 20160817 |