CN1800976A - Method for manufacturing thermal sensitive CTP plate - Google Patents
Method for manufacturing thermal sensitive CTP plate Download PDFInfo
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- CN1800976A CN1800976A CN 200510022603 CN200510022603A CN1800976A CN 1800976 A CN1800976 A CN 1800976A CN 200510022603 CN200510022603 CN 200510022603 CN 200510022603 A CN200510022603 A CN 200510022603A CN 1800976 A CN1800976 A CN 1800976A
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- base version
- heat
- ctp plate
- sensitive ctp
- oxide film
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Abstract
The invention discloses a making method and printing method of temperature-sensitive CTP plate to adapt aluminum plate as base plate, which comprises the following steps: surface disposal, three-phase electrolytic roughening treatment, ash disposal, depolarizing disposal, base plate oxidizing disposal, base plate hole-packing disposal, hydrophilic layer coating, photosensitive layer coating, drying, shearing and packing. The method reaches the ink-and-wash balance of print plate as soon as possible and overcomes dirty phenomenon, which guarantees the high quality and long print time.
Description
Technical field
The present invention relates to a kind of manufacture method of heat-sensitive CTP plate.
Background technology
Domestic lithography generally adopts positive PS printing plate, positive PS printing plate adopts aluminium sheet as substrate, at first substrate surface is handled during manufacturing and is removed the degreasing foul, carries out roughening treatment by single-phase electrolysis then, generate oxide film through the scale removal rear oxidation again, be coated with photosensitive resin layer at last.To generate egative film through group version, phototypesetting, development, photographic fixing during printing, could go up the machine printing through layout, printing down again.This method adopts single-phase electrolysis, and generating Grains is single reticulate structure, and it is with the degree of depth of the thickness change pit of Grains, and Grains is thick excessively, makes the moisture-holding capacity deficiency, easily scumming; And Grains is meticulous, makes in the micropore that light-sensitive surface is difficult to develop totally, and the version base easily pollutes easy scumming during printing.Generally be to adopt copper roller conduction to make the polarization of base version before the oxidation of base version, the copper roller easily generates heat, and the oxide film that the polarizability official post generates is loose, and the water wettability of non-graphic part is poor, has reduced the pressrun of PS version.Directly be coated with photoresists on oxide film, dirty point partly still can appear in non-graphic.In sum, positive PS printing plate is the ink-water balance ability in printing process, is prone to flower version, scumming, occurs falling version and scumming then, and pressrun is poor.
Summary of the invention
The invention provides a kind of manufacture method and Plate making printing method thereof of heat-sensitive CTP plate, the CTP version that adopts this method to make can make forme reach ink-water balance as early as possible, and dirty phenomenon is gone up in the printing that overcomes, for high-quality, the printing of long seal journey provide assurance.
Technical scheme of the present invention is as follows: a kind of manufacture method of heat-sensitive CTP plate, and it is the base version with the aluminium sheet, it comprises the steps:
First: surface treatment, remove the greasy dirt foul on base version surface;
Second: be electrolytic solution with hydrochloric acid, three electrodes feed in the electrolytic tank of alternating current, and the base version of process is carried out the three-phase electrolysis, and roughening treatment is carried out on base version surface, form the Grains of small rut shape;
The the 3rd: the base version after the roughening treatment is carried out ash disposal handle, the dirt that produces on base version surface when removing the three-phase electrolysis;
The 4th: base version is through the processing that polarizes of a charged acid solution;
The 5th: base version oxidation processes, under high electric current, low-voltage condition, make the base version carry out oxidation processes through acid solution, form the oxide film of water-retaining property on substrate small rut surface;
The 6th: base version sealing of hole, carry out sealing of hole to the micropore on base version oxide film surface and handle;
The 7th: hydrophilic layer is coated with, and contains the resin bed of hydrophilic compounds in base version surface coated;
The 8th: photographic layer is coated with, and contains the record resin bed of light-thermal cross over material in base version surface coated;
The 9th: oven dry shear pack finished product.
Surface treatment is achieved in that washs in aqueous slkali earlier, washes then, washs in acid solution again, and washing at last obtains linen base version.Carry out electrolytic treatments through a plurality of three-phase electrolytic tanks during roughening treatment, form compound Grains with multiple small rut on base version surface.
Through repeatedly oxidation, form non-porous oxide film during oxidation processes on base version surface.After the photographic layer coating, spray the air guide resin particle at base version surface electrostatic.
The heat-sensitive CTP plate that adopts the such scheme manufacturing is removed the photographic layer on hydrophilic oxide film surface again through development behind laser explosure, finish printing at last in printing machine.
After adopting as above technical scheme, adopt the three-phase electrolysis to form compound Grains, the compound reticulate structure that compound Grains is made up of macrorelief-mesorelief-small rut makes the water retention property of base edition good; Adopt charged solution to make the polarization of base version; it is closely knit to handle the oxide film that forms through subsequent oxidation; reach perfect water wettability; guarantee that forme reaches ink-water balance as early as possible; overcoming the forme machine shuts down upward dirty upward dirty with printing; the record resin bed of light-thermal cross over material combines firmly with the base version, makes forme have excellent abrasive and accurate site reductibility, for high-quality, the printing of long seal journey provide assurance.Used the light-thermal cross over material to infrared laser sensitive in the record resin bed, it can directly accept computer-controlled laser scanning light beam, with corresponding light source coupling, realizes the scanning of plate in plate-making.Since the threshold effect of light-thermal cross over material, edge, the site taxes and profits that form during scanning, and reductibility is better than positive PS printing plate.The photo-thermal cross-linked resin makes the forme of final formation have stable three-dimensional three-dimensional-structure efficiently, has improved the wearing quality of forme.The offset printing of using heat-sensitive CTP plate not only can save in the positive PS plate-making is made, and has reduced the probability of makeing mistakes, and has guaranteed that image accurately reduces, and has improved work efficiency and print quality.
Embodiment
A kind of manufacture method of heat-sensitive CTP plate, it is the base version with the aluminium sheet, comprise the aluminum or aluminum alloy plate, except pure aluminum plate, can use with aluminium as Main Ingredients and Appearance and contain the alloy of a small amount of other element, the element that can join in the aluminium alloy can be silicon, iron, manganese, copper, magnesium, chromium, zinc, molybdenum, nickel, titanium etc.
The manufacture method of heat-sensitive CTP plate comprises the steps:
First: surface treatment, remove the greasy dirt foul on base version surface, at first (Main Ingredients and Appearance is NaOH, gluconic acid sodium salt) washing in aqueous slkali, wash then, washing in acid solution (nitric acid, sulfuric acid) again, washing at last obtains linen base version.
Second: be electrolytic solution with hydrochloric acid, three graphite electrodes feed in the electrolytic tank of three-phase alternating current, and the base version of process is carried out the three-phase electrolysis, and roughening treatment is carried out on base version surface, form the Grains of small rut shape, and current density can be at 50-400C/dm
2Between; The base version can be carried out electrolytic treatments through three three-phase electrolytic tanks continuously, and the current density difference during three electrolytic tank electrolysis forms the compound Grains with different fluctuating frequency on base version surface, as the compound reticulate structure of being made up of macrorelief-mesorelief-small rut.This structure can increase the area on base version surface, and the oxide film that produced is afterwards combined firmly with the base version, has improved the hydrophilicity of non-graphic part.
The the 3rd: the base version after the roughening treatment is carried out ash disposal handle, the dirt that produces on base version surface when removing the three-phase electrolysis.At first be washing, adopt aqueous slkali (aqueous slkali is a NaOH) washing then, washing again continues washing in acid solution (acid solution is nitric acid, sulfuric acid etc.), is washing at last.
The 4th: base version is through processings that polarize of a charged acid solution, and acid solution is nitric acid, sulfuric acid, feeds direct current in acid solution, makes the base version generation polarization phenomena of process.
The 5th: base version oxidation processes generates the water-retaining property oxide film, and method for oxidation is not particularly limited, and can adopt anodizing, vapour deposition method, collosol and gel transformation approach, splash method, ion plating method or diffusion method or the like.The preferred anodizing that adopts, it is in the independent or two or more aqueous solution or non-aqueous solution that are made into such as sulfuric acid, oxalic acid, makes aluminium sheet pass through direct current or alternating current, generates the water-retaining property oxide film in surface of aluminum plate.Through repeatedly oxidation, form non-porous oxide film during oxidation processes on base version surface.The present invention is under big electric current, low-voltage condition, makes the base version carry out oxidation processes through acid solution, and current density is between 2000A-5000A, and voltage is between 20V-35V.
The 6th: base version sealing of hole, carry out sealing of hole with base version dip treating in acid solution of oxidation processes to the oxide film surface micropore and handle.Remove solution impregnation and handle, can also adopt electrodeposition process, inject process, coating processing, splash processing, ion plating etc.
The 7th: hydrophilic layer coating, contain the resin bed of hydrophilic compounds in base version surface coated, hydrophilic compounds has: contain polyvinyl phosphonic acids, sulfonic compound, saccharide compound, silicate compound.
The 8th: photographic layer is coated with, and contains the record resin bed of light-thermal cross over material in base version surface coated.As long as light-thermal transition material has sensible heat reaction function base, it produces heat after absorbing infrared laser, makes the Acidifier at coexistence one place produce acid by the thermal decomposition effect.The base version heats after about 30 seconds under the temperature of 130-140 degree Celsius, cross-linking reaction just takes place in the laser explosure position, resol resin is with the sour acting in conjunction that produces, the place of exposure forms picture and text printing position, unexposed position is developed agent and rinses out, expose aluminum substrate, form the non-graphic part.
The the 9th: after the photographic layer coating, spray the air guide resin particle at base version surface electrostatic.There is the air guide particle in during printing down because master surface, and suction is better, is difficult for producing empty net, further strengthens the reductibility of image.
The tenth: oven dry shear pack finished product.
A kind of Plate making printing method of heat-sensitive CTP plate behind laser explosure, is removed the photographic layer on hydrophilic oxide film surface according to the heat-sensitive CTP plate of said method manufacturing again through development, finish printing at last in printing machine.
Claims (6)
1, a kind of manufacture method of heat-sensitive CTP plate, it is the base version with the aluminium sheet, it is characterized in that it comprises the steps:
First: surface treatment, remove the greasy dirt foul on base version surface;
Second: be electrolytic solution with hydrochloric acid, three electrodes feed in the electrolytic tank of alternating current, and the base version of process is carried out the three-phase electrolysis, and roughening treatment is carried out on base version surface, form the Grains of small rut shape;
The the 3rd: the base version after the roughening treatment is carried out ash disposal handle, the dirt that produces on base version surface when removing the three-phase electrolysis;
The 4th: base version is through the processing that polarizes of a charged acid solution;
The 5th: base version oxidation processes, under high electric current, low-voltage condition, make the base version carry out oxidation processes through acid solution, form the oxide film of water-retaining property on substrate small rut surface;
The 6th: base version sealing of hole, carry out sealing of hole to the micropore on base version oxide film surface and handle;
The 7th: hydrophilic layer is coated with, and contains the resin bed of hydrophilic compounds in base version surface coated;
The 8th: photographic layer is coated with, and contains the record resin bed of light-thermal cross over material in base version surface coated;
The 9th: oven dry shear pack finished product.
2, the manufacture method of heat-sensitive CTP plate according to claim 1 is characterized in that surface treatment is achieved in that to wash in aqueous slkali earlier, washes then, washs in acid solution again, and washing at last obtains linen base version.
3, the manufacture method of heat-sensitive CTP plate according to claim 1 is carried out electrolytic treatments through a plurality of three-phase electrolytic tanks when it is characterized in that roughening treatment, forms the compound Grains with multiple small rut on base version surface.
4, the manufacture method of heat-sensitive CTP plate according to claim 1 through repeatedly oxidation, forms non-porous oxide film on base version surface when it is characterized in that oxidation processes.
5, the manufacture method of heat-sensitive CTP plate according to claim 1, it is characterized in that photographic layer coating after, spray the air guide resin particle at base version surface electrostatic.
6, a kind of Plate making printing method of heat-sensitive CTP plate, it is characterized in that will be according to the heat-sensitive CTP plate of each method manufacturing in the claim 1 to 5 behind laser explosure, remove the photographic layer on hydrophilic oxide film surface again through development, in printing machine, finish printing at last.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510022603 CN1800976A (en) | 2005-12-26 | 2005-12-26 | Method for manufacturing thermal sensitive CTP plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510022603 CN1800976A (en) | 2005-12-26 | 2005-12-26 | Method for manufacturing thermal sensitive CTP plate |
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|---|---|
| CN1800976A true CN1800976A (en) | 2006-07-12 |
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| CN 200510022603 Pending CN1800976A (en) | 2005-12-26 | 2005-12-26 | Method for manufacturing thermal sensitive CTP plate |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101293441B (en) * | 2008-06-23 | 2010-04-14 | 石深泉 | Environment-friendly ink-jet CTP offset master and production method thereof |
| CN102241181A (en) * | 2010-04-30 | 2011-11-16 | 富士胶片株式会社 | Lithographic printing plate support and presensitized plate |
| CN102937775A (en) * | 2012-12-04 | 2013-02-20 | 泰州市开发区瑞华印刷版材有限公司 | Structure of thermo-sensitive CTcP (Computer to Conventional Plate) plate |
| CN102935770A (en) * | 2012-12-04 | 2013-02-20 | 泰州市开发区瑞华印刷版材有限公司 | Manufacturing method of thermosensitive CTcP (Computer To conventional Plate) |
| CN102991176A (en) * | 2012-12-01 | 2013-03-27 | 刘华礼 | Method for fabricating coated light-sensitive thermosensitive CTP plate |
| CN103290453A (en) * | 2013-05-10 | 2013-09-11 | 黄山金瑞泰科技有限公司 | Hole sealing agent for hole sealing processing of computer-to-plate (CTP) printing plate material |
| CN103331989A (en) * | 2013-06-28 | 2013-10-02 | 王晓军 | New method of box-type coating drying production technology for preparing offset printing PS (pre-sensitized) plate |
| CN103625146A (en) * | 2012-08-28 | 2014-03-12 | 温州市华彩印刷器材有限公司 | Plate-substrate graining process |
| CN107561148A (en) * | 2017-10-09 | 2018-01-09 | 中铝瑞闽股份有限公司 | A kind of method of checking CTP aluminum substrate surface defects |
| CN109839803A (en) * | 2019-01-25 | 2019-06-04 | 安徽强邦印刷材料有限公司 | A kind of heat susceptible coating for exempting from processing CTP editions suitable for water development |
| CN109835081A (en) * | 2019-01-25 | 2019-06-04 | 安徽强邦印刷材料有限公司 | A kind of double coating water developments exempt from processing CTP editions |
| CN113183653A (en) * | 2021-04-08 | 2021-07-30 | 江苏韵燕印刷版材有限公司 | Processing technology of thermosensitive CTP plate |
-
2005
- 2005-12-26 CN CN 200510022603 patent/CN1800976A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101293441B (en) * | 2008-06-23 | 2010-04-14 | 石深泉 | Environment-friendly ink-jet CTP offset master and production method thereof |
| CN102241181B (en) * | 2010-04-30 | 2014-07-23 | 富士胶片株式会社 | Lithographic printing plate support and presensitized plate |
| CN102241181A (en) * | 2010-04-30 | 2011-11-16 | 富士胶片株式会社 | Lithographic printing plate support and presensitized plate |
| CN103625146A (en) * | 2012-08-28 | 2014-03-12 | 温州市华彩印刷器材有限公司 | Plate-substrate graining process |
| CN102991176A (en) * | 2012-12-01 | 2013-03-27 | 刘华礼 | Method for fabricating coated light-sensitive thermosensitive CTP plate |
| CN102937775A (en) * | 2012-12-04 | 2013-02-20 | 泰州市开发区瑞华印刷版材有限公司 | Structure of thermo-sensitive CTcP (Computer to Conventional Plate) plate |
| CN102935770A (en) * | 2012-12-04 | 2013-02-20 | 泰州市开发区瑞华印刷版材有限公司 | Manufacturing method of thermosensitive CTcP (Computer To conventional Plate) |
| CN103290453A (en) * | 2013-05-10 | 2013-09-11 | 黄山金瑞泰科技有限公司 | Hole sealing agent for hole sealing processing of computer-to-plate (CTP) printing plate material |
| CN103331989A (en) * | 2013-06-28 | 2013-10-02 | 王晓军 | New method of box-type coating drying production technology for preparing offset printing PS (pre-sensitized) plate |
| CN107561148A (en) * | 2017-10-09 | 2018-01-09 | 中铝瑞闽股份有限公司 | A kind of method of checking CTP aluminum substrate surface defects |
| CN109839803A (en) * | 2019-01-25 | 2019-06-04 | 安徽强邦印刷材料有限公司 | A kind of heat susceptible coating for exempting from processing CTP editions suitable for water development |
| CN109835081A (en) * | 2019-01-25 | 2019-06-04 | 安徽强邦印刷材料有限公司 | A kind of double coating water developments exempt from processing CTP editions |
| CN113183653A (en) * | 2021-04-08 | 2021-07-30 | 江苏韵燕印刷版材有限公司 | Processing technology of thermosensitive CTP plate |
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