CN105739271A - Plateless printing digital printing technology - Google Patents
Plateless printing digital printing technology Download PDFInfo
- Publication number
- CN105739271A CN105739271A CN201610270846.6A CN201610270846A CN105739271A CN 105739271 A CN105739271 A CN 105739271A CN 201610270846 A CN201610270846 A CN 201610270846A CN 105739271 A CN105739271 A CN 105739271A
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- China
- Prior art keywords
- toner
- printing
- charge
- photosensitive drums
- electrostatic latent
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- 238000005516 engineering process Methods 0.000 title abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000004744 fabric Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 230000005684 electric field Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 239000002156 adsorbate Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 239000012943 hotmelt Substances 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 238000010297 mechanical methods and process Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000001994 activation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 125000001475 halogen functional group Chemical group 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
- G03G15/221—Machines other than electrographic copiers, e.g. electrophotographic cameras, electrostatic typewriters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Combination Of More Than One Step In Electrophotography (AREA)
Abstract
The invention discloses a plateless printing digital printing technology. The plateless printing digital printing technology is characterized by the following steps: (1) charging, evenly covering the surface of a photosensitive drum of a digital printing machine with an electrostatic charge layer with certain polarity and quantity; (2) exposing, namely coating the surface of the photosensitive drum with a coating with photoconductivity; (3) developing, namely visualizing an electrostatic latent image on the photosensitive drum with opposite charges; (4) transferring, making a printing medium close to the photosensitive drum and applying charges which are opposite to a toner image in polarity to the back surface of the printing medium to transfer a toner which is formed by the photosensitive drum and represents image information to the printing medium; (5) fixation, fixing unstable and delible toner image on a printing material on the printing material to form final presswork; and (6) cleaning, namely cleaning the toner which is left on the surface of the photosensitive drum after being transferred, and achieving plateless printing.
Description
Technical field
The present invention relates to digital printing process field, be specifically related to a kind of digital printing process without version printing.
Background technology
Printing (Printing, GraphicArts, also with using GraphicCommunications and figure propagation) it is through operations such as plate-making, Shi Mo, pressurizations by word, picture, photo, the original copy such as false proof, make ink transfer to material surfaces such as paper, fabric, plastic products, leathers, the technology of batch duplicating original copy content.
Along with people's raising to personalized product cognition degree, digital printing technologies is more and more extensive at daily life and the application in producing.In printing industry, being replaced traditional analog information by digital information, directly by digital image information, the printing technology transferred on stock is called digital printed.Digital printed by flexibly, customization is strong and the cycle is short etc., and advantage dominates the market rapidly, and presents irresistible growth.But it is no matter traditional printing or digital printed, it is necessary to by prepress treatment and mask-making technology.
Summary of the invention
For problem above, the invention provides a kind of digital printing process without version printing, by adopting charging, exposure, development, transfer, fixing and and clean step, and coat photoconductive coating in the photosensitive drums of printer, the electrostatic latent image in photosensitive drums is made to visualize with the toner of oppositely charged, it is adjacent to photosensitive drums with printing medium, the electric charge with toner image opposite polarity is applied thus transferring on printing medium by the toner of established for photosensitive drums expression image information at the back side of printing medium, delible for instability on printable fabric toner image is fixed on printable fabric, to form final leaflet, realize without version printing, can effectively solve the problem in background technology.
To achieve these goals, the technical solution used in the present invention is as follows: a kind of digital printing process without version printing, comprises the steps:
(1) charging: make the photosensitive drum surface of digital printer cover last layer equably and there is the electrostatic charge of certain polarity and quantity；
(2) exposure: the surface of photosensitive drums is coated with the coating with photoconductivity, it sees that the resistance in light region is little, show the characteristic of conductor, non-see that the resistance in light region is big, show the characteristic of insulator, charge generating layers in the photoconductor coatings of exposure area absorbs light and produces and coating surface charge polarity opposite charge, transfer in coating surface and surface charge through charge transfer layer, the surface charge of non-exposed areas still keeps, thus form the electrostatic latent image that surface potential rises and falls with the change of image light and shade on the surface of photosensitive drums；
(3) development: make the electrostatic latent image in photosensitive drums visualize with the toner of oppositely charged；
(4) transfer: be adjacent to photosensitive drums with printing medium, applies the electric charge with toner image opposite polarity thus being transferred on printing medium by the toner of established for photosensitive drums expression image information at the back side of printing medium；
(5) fixing: delible for the instability on printable fabric toner image to be fixed on printable fabric, to form final leaflet；
(6) clean: remove and also remain in photosensitive drum surface toner after transfer；
According to such scheme, in described step (1), photosensitive drums is to be coated with organic photoconductor or the formation of unformed silicon on aluminium base cylinder or flexographic plate material roller.
According to such scheme, in described step (2), exposure light source adopts the light beam that scanning laser beam or LED matrix send, and the wavelength of light source is set to 680-720mm.
According to such scheme, in described step (3), under the effect of photosensitive drum surface electrostatic latent image electric field force, toner is attracted in photosensitive drums, the ability of the partial adsorbates toner that electrostatic latent image current potential is more high is more strong, the part that electrostatic latent image current potential is more low, the ability of absorption toner is also relatively weak, the difference of corresponding electrostatic latent image current potential, its absorption toner amount is also just different, and the sightless electrostatic latent image of photosensitive drum surface has reformed into the toner image of visible consistent different gray-levels deep or light from original copy.
According to such scheme, described step (5) adopts the mode that heating combines with pressurization, carries out fixing to hot melt toner.
According to such scheme, described step (6) adopts Mechanical Method to clean, and is by adopting brush or air pump to wash toner remaining on cylinder, and cylinder surface is carried out blanket exposure and obtains unified electric charge by the residual charge employing for cylinder surface.
Beneficial effects of the present invention:
The present invention by adopt charging, exposure, development, transfer, fixing and and clean step, and coat photoconductive coating in the photosensitive drums of printer, the electrostatic latent image in photosensitive drums is made to visualize with the toner of oppositely charged, it is adjacent to photosensitive drums with printing medium, the electric charge with toner image opposite polarity is applied thus transferring on printing medium by the toner of established for photosensitive drums expression image information at the back side of printing medium, delible for instability on printable fabric toner image is fixed on printable fabric, to form final leaflet, it is achieved without version printing.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
Embodiment
A kind of digital printing process without version printing, comprises the steps:
(1) charging: make the photosensitive drum surface of digital printer cover last layer equably and there is the electrostatic charge of certain polarity and quantity；It is actually the activation process of photosensitive drums, light drum has good photonasty, charging process is to form premise and the basis of electrostatic latent image at photosensitive drum surface, prepare for photosensitive drums accepts image information, making originally do not possess photosensitive sense, photosensitive drums is to be coated with organic photoconductor or the formation of unformed silicon on aluminium base cylinder or flexographic plate material roller；Unformed silicon coating surface is filled with positive charge, and anti-wear performance is more better.
(2) exposure: the surface of photosensitive drums is coated with the coating with photoconductivity, and (organic photoconductor is a kind of multilayer materials, its surface is filled with unified negative charge), it sees that the resistance in light region is little, show the characteristic of conductor, non-see that the resistance in light region is big, show the characteristic of insulator, charge generating layers in the photoconductor coatings of exposure area absorbs light and produces and coating surface charge polarity opposite charge, transfer in coating surface and surface charge through charge transfer layer, the surface charge of non-exposed areas still keeps, thus form the electrostatic latent image that surface potential rises and falls with the change of image light and shade on the surface of photosensitive drums；Exposure light source adopts the light beam that scanning laser beam or LED matrix send, and the wavelength of light source is set to 680-720mm.
(3) development: make the electrostatic latent image in photosensitive drums visualize with the toner of oppositely charged；Under the effect of photosensitive drum surface electrostatic latent image electric field force, toner is attracted in photosensitive drums, the ability of the partial adsorbates toner that electrostatic latent image current potential is more high is more strong, the part that electrostatic latent image current potential is more low, the ability of absorption toner is also relatively weak, the difference of corresponding electrostatic latent image current potential (namely electric charge is how many), its absorption toner amount is also just different, and the sightless electrostatic latent image of photosensitive drum surface has reformed into the toner image of visible consistent different gray-levels deep or light from original copy.
(4) transfer: be adjacent to photosensitive drums with printing medium, applies the electric charge with toner image opposite polarity thus being transferred on printing medium by the toner of established for photosensitive drums expression image information at the back side of printing medium；When printing medium contacts with developed photosensitive drum surface, use corona unit to its electric discharge at back side of paper, the polarity of this corona is same with charged electrical halo phase, and with the charged opposite polarity of toner, owing to the electric field force of transfer corona is more much better than than the electric field force that photosensitive drums adsorbs toner, therefore under the effect of electrostatic attraction, the toner image in photosensitive drums is adsorbed on printing paper, thus completing the transfer of image.
(5) fixing: delible for the instability on printable fabric toner image to be fixed on printable fabric, to form final leaflet；The mode adopting heating to combine with pressurization, carries out fixing to hot melt toner；The pressure size of the temperature of heating, time and applying, the adhesion firmness of toner image is had a certain impact, wherein the control of heating-up temperature is the key of image fixing quality quality, if heat is too much, coloured image will deform on paper surface, eventually causes paper problem of transmission
(6) clean: remove and also remain in photosensitive drum surface toner after transfer；Employing Mechanical Method is cleaned, and is by adopting brush or air pump to wash toner remaining on cylinder, and cylinder surface is carried out blanket exposure and obtains unified electric charge by the residual charge employing for cylinder surface.
Based on above-mentioned, it is an advantage of the current invention that, the present invention is by adopting charging, exposure, development, transfer, fixing and and clean step, and coat photoconductive coating in the photosensitive drums of printer, the electrostatic latent image in photosensitive drums is made to visualize with the toner of oppositely charged, it is adjacent to photosensitive drums with printing medium, the electric charge with toner image opposite polarity is applied thus transferring on printing medium by the toner of established for photosensitive drums expression image information at the back side of printing medium, delible for instability on printable fabric toner image is fixed on printable fabric, to form final leaflet, realize without version printing.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention.
Claims (6)
1. the digital printing process without version printing, it is characterised in that comprise the steps:
(1) charging: make the photosensitive drum surface of digital printer cover last layer equably and there is the electrostatic charge of certain polarity and quantity；
(2) exposure: the surface of photosensitive drums is coated with the coating with photoconductivity, it sees that the resistance in light region is little, show the characteristic of conductor, non-see that the resistance in light region is big, show the characteristic of insulator, charge generating layers in the photoconductor coatings of exposure area absorbs light and produces and coating surface charge polarity opposite charge, transfer in coating surface and surface charge through charge transfer layer, the surface charge of non-exposed areas still keeps, thus form the electrostatic latent image that surface potential rises and falls with the change of image light and shade on the surface of photosensitive drums；
(3) development: make the electrostatic latent image in photosensitive drums visualize with the toner of oppositely charged；
(4) transfer: be adjacent to photosensitive drums with printing medium, applies the electric charge with toner image opposite polarity thus being transferred on printing medium by the toner of established for photosensitive drums expression image information at the back side of printing medium；
(5) fixing: delible for the instability on printable fabric toner image to be fixed on printable fabric, to form final leaflet；
(6) clean: remove and also remain in photosensitive drum surface toner after transfer.
2. a kind of digital printing process without version printing according to claim 1, it is characterised in that in described step (1), photosensitive drums is to be coated with organic photoconductor or the formation of unformed silicon on aluminium base cylinder or flexographic plate material roller.
3. a kind of digital printing process without version printing according to claim 1, it is characterised in that in described step (2), exposure light source adopts the light beam that scanning laser beam or LED matrix send, and the wavelength of light source is set to 680-720mm.
4. a kind of digital printing process without version printing according to claim 1, it is characterized in that, in described step (3), under the effect of photosensitive drum surface electrostatic latent image electric field force, toner is attracted in photosensitive drums, the ability of the partial adsorbates toner that electrostatic latent image current potential is more high is more strong, the part that electrostatic latent image current potential is more low, the ability of absorption toner is also relatively weak, the difference of corresponding electrostatic latent image current potential, its absorption toner amount is also just different, the sightless electrostatic latent image of photosensitive drum surface has reformed into the toner image of visible consistent different gray-levels deep or light from original copy.
5. a kind of digital printing process without version printing according to claim 1, it is characterised in that described step (5) adopts the mode that heating combines with pressurization, carries out fixing to hot melt toner.
6. a kind of digital printing process without version printing according to claim 1, it is characterized in that, described step (6) adopts Mechanical Method to clean, being by adopting brush or air pump to wash toner remaining on cylinder, cylinder surface is carried out blanket exposure and obtains unified electric charge by the residual charge employing for cylinder surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270846.6A CN105739271A (en) | 2016-04-26 | 2016-04-26 | Plateless printing digital printing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270846.6A CN105739271A (en) | 2016-04-26 | 2016-04-26 | Plateless printing digital printing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105739271A true CN105739271A (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610270846.6A Pending CN105739271A (en) | 2016-04-26 | 2016-04-26 | Plateless printing digital printing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105739271A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110275404A (en) * | 2019-07-12 | 2019-09-24 | 无锡市天彩包装印刷有限公司 | A kind of POD digital printing process based on technology of Internet of things |
| CN115616882A (en) * | 2022-10-18 | 2023-01-17 | 东莞市铁石文档科技有限公司 | File copying device with flexible working mode and copying method |
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2016
- 2016-04-26 CN CN201610270846.6A patent/CN105739271A/en active Pending
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Effective date of registration: 20181128 Address after: 523710 No. 105-1 Lingnan Avenue, Shigucun, Tangxia Town, Dongguan City, Guangdong Province Applicant after: Dongguan City Hui Chi Paper Co., Ltd 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: 20160706 |
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