CN1864996A - Method for preparing planographic plate - Google Patents
Method for preparing planographic plate Download PDFInfo
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- CN1864996A CN1864996A CN 200510113287 CN200510113287A CN1864996A CN 1864996 A CN1864996 A CN 1864996A CN 200510113287 CN200510113287 CN 200510113287 CN 200510113287 A CN200510113287 A CN 200510113287A CN 1864996 A CN1864996 A CN 1864996A
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- lithographic plate
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Abstract
The invention relates to a method for preparing plane printed board, which comprises following steps that: selecting natural or composite polymer sheet to produce the base of printed board, while said base has the tensile strength as 400-3000Kgm/cm2 and the thickness as 75-250 micro meters; heating said base at 140-180Deg. C for 8-12mins to constrict the base while the contraction percentage is 0.2-2.0%; modifying said base to change the surface energy of base; reacting the hydrophilic adhesive with cross-linker, accelerator, at least one dye, at least one cation surface activator, and the silicon dioxide particles whose size is 1-5 micro meters and the porous volume is 0.2ml/gm-1.8ml/gm, to form the hydrophilic plane paint, wherein, the ratio between catalyst, accelerator, cross-linker, adhesive, dye, anion surface activator and silicon dioxide particle is 1 : 2 : 1 : 2: 2 : 1 : 20 : 25 : 60 : 80; and at least one layer of hydrophilic plane paint is processed on the modified base.
Description
The present invention relates to a kind of method of lithographic plate and lithographic plate of making by this method of preparing.
The also available following term of this product is described: the ink-jet lithographic plate of directly making a plate, CTP or CtP ink-jet lithographic plate, computer-polyethylene (Poly) or CtPoly ink-jet lithographic plate.For as the galley on the offset press, constitute at the bottom of the hydrophilic group of described version by flexibility, utilize inkjet printer/plotter imaging in described substrate.
Especially, the present invention relates to prepare the method for the lithographic plate that uses by ink-jet imaging in the substrate, particularly at the bottom of the flexible hydrophilic group.
According to a further aspect in the invention, it further relates to the method that prolongs the printing (print run length, promptly can by the duplicate of the galley printing that forms image or the number of printed matter) of described galley by photographic fixing (fixation) technology.
Traditional printing process comprises letterpress, intaglio printing, offset lithography and serigraphy.Recently, because graphic designs, photograph, the page are synthetic and the computerization and the digitlization of image transmission course, digital printed having obtained in developed country develops rapidly.
All typographies all are to utilize image-carrier to print image in the substrate such as paper, plastics, metal.In imprint lithography, the galley of using various flexible metals, plastics or papery is as image-carrier.
In the method that generates image on the galley is the target during the big quantity research between many decades.Its technology develops into application ultraviolet photograph-mechanical imaging from artificial etching and engraving, and then develops into the digital imaging technology that uses green, blue, red, infrared and Ultra-Violet Laser.
About the imaging region of galley, every kind of typography all has the typical requirement of self.For gravure printing technique, image-region is recessed; For letterpress technology, image-region be give prominence to or be higher than non-image areas or background area; For silk-screen printing technique, image-region is etched, thereby printing ink can be passed through; Lithographic printing is that unique image-region and non-image areas is in same level or surperficial technology.
Therefore, lithographic plate needs special manufacturing process and imaging process, so that the image-region that must print has the characteristic of oleophylic (happiness China ink), non-image areas or non-printing zone have hydrophilic (happiness water) characteristic.Be used to make the substrate of lithographic plate by metal (aluminium is the most frequently used) or plastics (polyester is a preferred material) formation.
Lithographic plate can be divided into following kind: first generation lithographic plate is made of the aluminium sheet through surface roughening and anodized.They need the long plate-making time and need carry out complicated processing step by the terminal use: the rotation photosensitive coated layer; By negative egative film or the exposure of positive egative film; Acid development; The solvent-borne type etching; Remove masterplate, passivation, gluing, last China ink or the like.Processing so total time that galley spent approximately is 90 minutes, and its print result is inconsistent and unintelligible.
Second generation lithographic plate is known as presensitized plate, by through surface roughening and anodized, precoating be the photosensitive diazonium of positivity or negativity or the aluminium sheet of photosensitive resin coating constitutes.Presensitized plate has short, every process-cycle that plate is about 5 to 10 minutes; it is made up of following step: carry out ultraviolet exposure by negative egative film or positive egative film; use suitable developer with automatic processor or manually remove coating in the non-image areas, use the protectiveness glued membrane artificial or use the automatic processor wipe surfaces.These galleys are by the form supply of producer with precoating, thus processing extremely carefully during the terminal use must and carry in transportation, storage, because they are very responsive to daylight, heat and moisture.
As mentioned above, positive egative film or negative egative film were made mask in the middle of presensitized plate need utilize when exposure.In the positivity plate, the positive egative film blocks ultraviolet ray, makes the coating of image-region not be subjected to UV-irradiation, makes that thus the coating of non-image areas can be by the light reaction solubilized that becomes, and dissolves during wet development treatment.In negative plates, the negative egative film makes light can shine image-region and makes it be insoluble to developer; Like this, after wet the development, image-region is retained on the galley, and original unexposed coating is removed from non-image areas.The main limitation place that preparation positive time that egative film/the negative egative film is spent and expense are presensitized plate.
Third generation lithographic plate is known as digital printed version, by being coated with through formulated so that dissimilar laser is reactive coating, constitutes through the aluminium sheet of surface roughening and anodized.Along with the appearance of digital technology, original picture and character is made into or changes into number format in computer now.These digital pictures are sent to the laser image forming apparatus that is known as forme logging machine or CtP (CTP) imaging device with required form and page layout by computer then.The digital then page directly is exposed in the forme logging machine on the digital printed version.Galley is developed in processor to remove non-image areas then, next uses the diaphragm of the glue of formulated.Every version is similar to presensitized plate total process time, but has saved positive time and expense that egative film/the negative egative film is spent in the middle of the preparation.
Three kinds of digital lithographic plates are arranged at present:
A. to thermo-responsive and use the heat version of iraser (830 or 1064 nanometer) imaging thereon.
B. use the silver-colored sensitization version of purple (410nm) or green (YAG532nm) or red (HeNe670nm) laser explosure.
C. use the photopolymer plate of purple (410nm) or blue (argon 488nm) or green (YAG532nm) or red (HeNe670nm) laser explosure.
Above-mentioned all digital version need very expensive and heavy laser forme logging machine, and need carry out chemical treatment, and wherein some chemicals need be observed strict disposal standard.And these versions are very expensive.Therefore, these extra-pays have been offset fast and the advantage of saving intermediate.Thereby digital version is not generally accepted, and their application at present to only limit to speed be in the high-grade newspaper and business printer of fundamental requirement.
In order to overcome some limitation of above-mentioned various digital version, the applicant provides a kind of price lower, simple and safe digital lithographic plate " NovaDom
*" polyester laser version (
*The applicant's trade mark).This version is formed by polyester (PETG is also referred to as PET) base, and the direct imaging thereon of available colouring agent laser printer.Do not need after the imaging to utilize any chemicals to handle, and can directly on offset press, utilize the about 20000 parts of duplicate of each side printing of version.Each side of version can also form lasting combining with the colouring agent that is deposited on by laser printer on the image-region all by special coating, hydrophilic surface composition.The image that should be formed by the laser printer colouring agent receives body as oleophylic, and the printing ink on the adhesion printing machine is printed onto on the paper or in other substrate of undertaking the printing of so that it is flowed to blanket cylinder then.
Confirmed NovaDom polyester laser version be used for the single of small-format and the colored printing of interspersing, one of the most popular digital printed version in the world wide.The NovaDom version has obtained the most reputable awards in the world, is promptly encouraged by " the TheInterTech Technology " that GATF (image technique foundation) issues in the U.S. in nineteen ninety-five as " will influence printing industry unique technological innovation in future " (evaluation committee's term).(GATF is independent industrial management, the research organization the biggest in the world in printing and the associating industry.The awards of its annual product technology innovation are the equal of the Nobel Prize in the industry.The award-winner in past are the trans-sectoral business company in the whole world basically, the application then be from this award institution over 20 years outside North America, Britain, Northern Europe and Japan unique award-winner.)
The polyester laser version of NovaDom and following other brands is subjected to the restriction of laser printer own characteristic, and the version width of cloth of the maximum that promptly contemporary laser printer can hold is A3.The resolution ratio of image and alignment precision are also limit by the performance of laser instrument engine, and therefore such version is not suitable for high-quality four look technology printings.
The present invention has overcome the limitation of NovaDom and other polyester laser versions by a kind of plate-making and version imaging method are provided, and this method is suitable for using HP 51645A, the HP51640A such as Hewlett-Packard, and HP51629A; Epson T5431 photography is black, and Epson T480011 is black; Epson T5437 somber; Epson T5432 is bluish-green, and Epson T483011 is bluish-green; Epson T5434 Huang, Epson T481011 Huang; Epson T5435 bluish-green, Epson T485011 bluish-green; The shallow fuchsin of Epson T5436, the imaging on the big form ink-jet printer of standard of the standard ink of shallow fuchsin of Epson T484011 and so on.Noted earlier is exemplary the enumerating of ink, and does not mean that exhaustive.
The present invention also manages to provide at the bottom of the hydrophilic group of the present invention, can use the commercially available ink of standard, utilizes piezoelectricity, heat, bubble jet or the ink-jet printer imaging thereon of ink spraying technique continuously.
In recent years, ink-jet printer has replaced laser printer becomes the most popular output device of graphic printing.The appearance of these printers makes the output in the size range of printing from A8 to super wide format become possibility.Lower and their reliability of these printer costs has obtained remarkable improvement recently.Its resolution capability strengthens greatly, and for example, Epson 7600 can provide the resolution ratio that reaches 2400dpi.
About utilizing ink-jet system on the aluminum galley of passing through roughening and anodized and other hydrophilic lithographic plate surfaces, to generate image, had multiple open.All these methods and opinion all relate to use replaces standard as the specific lipophilic cpd of image forming medium ink-jet printing ink.This lipophilic cpd is present in the ink-cases of printers with liquid or with the form of semi-solid (wax).
In the open United States Patent (USP) of portion 5,501, No. 150 (not having identical indian patent), fluid ink and hydrophilic medium be set at comprise and can produce the material that silver be gone back original image by inkjet printing, be used to generate the argent image.Its major defect is the complexity of imaging fluid, and needs wet process silver image so that it has enough hydrophobicitys.
In the such open U.S. Patent number 4,833,486 (not having identical indian patent) of another part, having described ink is solid or inversion of phases ink, thus on the surface of lithographic plate the hot wax of deposition.The circularity of the drop that solidifies does not have the resolution ratio of liquid ink-jet printer.
United States Patent (USP) 5,511, No. 477 (not having identical indian patent) disclose the method that photopolymerization ink composition that a kind of use is suitable for forming negative-appearing image or erect image is made photopolymerization relief type galley.
United States Patent (USP) No. 5312654 (not having identical indian patent) also discloses a kind of method of using photopolymerization ink composition in the hydrophilic ink composition to make lithographic plate.Thereby image is solidified described image sensitization by being exposed to actinic light.
Research discloses 289118 (not having identical indian patent) and discloses and a kind ofly make the method for galley by ink-jet, and its ink inside is the hydrophobic polymer emulsion.
Above-mentioned open text and other the openly key of method are to use the compound of special preparation as the imaging ink.The commercially available ink-jet printing ink that the standard that provides with the ink-jet printer producer is not provided for they carries out work.Equally, they do not propose to produce this lithographic plate with original process: can use commercially available ink imaging satisfactorily in ink-jet printer, other non-impact type and mechanical type printer of standard.Lithographic plate of the present invention can use the imaging on standard inkjet of above-mentioned standard ink jet inks marking ink.In addition, described version also can be on other non-impact printer such as laser printer or the like and imaging on the impact type device such as duplicator, dot-matrix printer or the like.
Use the imaging fluid and the compound of the above-mentioned special preparation of mentioning in open, in the print cartridge that in ink-jet printer, needs to use refilling and and the compatibility of print cartridge aspect, produced noticeable technology and application in practice problem.Many ink-jet printers all have special-purpose print cartridge and special-purpose ink, also comprise special-purpose control ink level and respond the microchip of printhead.Whether these printers can also be discerned print cartridge is genuine piece.The imaging fluid that injects special preparation in these print cartridges is infeasible, and this is that the performance of printer just can't be guaranteed because if do not use the combination of original print cartridge and ink.The hidden danger that also has other is for example damaged printhead and ink pipeline.In addition, when printer did not have the microchip of this printer makers, special imaging fluid producer print cartridge supply, that be filled with its distinctive imaging fluid just can not use on this printer.Galley constructed in accordance does not need to use the imaging fluid of special preparation, but the print cartridge and the ink work of the available standard that provides by printer makers, this is very unique.
Different with galley constructed in accordance is, above the described open compatibility that not have to propose with non-impact type digital printing device (for example laser printer), not have to propose and the compatibility of impact printer (for example dot-matrix printer) and manual formation method (for example calligraphy) yet.
Some patent disclosure texts have been mentioned the prefabricated metal photographic plate (being the metallic plate of alligatoring, anodic oxidation and photosensitive coated layer) that uses the imaging on ink-jet printer of special ink or fluid.Be not easy in ink-jet printer, transmit owing to these editions are flexible not enough, particularly transmit route and just cause difficulty when straight, so these versions also are not accepted in commerce.Importantly, this method has equally also run into above mentioned problem, and promptly ink-jet printer does not use and is filled with the imaging fluid, amateurish ink cartridge.Equally, these patent disclosures are not mentioned and all types of inkjet-printing devices and other non-impact printers (for example laser printer) and impact printer (for example dot-matrix printer) and the manual compatibility of imaging (for example calligraphy).
Galley of the present invention and non-impact printer (ink-jet and laser printer), impact printer (comprising dot-matrix printer) and manual formation method (comprising calligraphy) compatibility.Galley of the present invention is made by flexible plastic material, and with the ink-jet ink and the print cartridge compatibility of standard.
Described invention also comprises the improvement of the substrate of accepting ink, wherein can reach 6 reversal printing most.
Therefore, the present invention has enlarged the border of present prior art and applicant's oneself polyester laser version.
Uniqueness of the present invention is the improvement of flexible polyester base version, this base version can be used the imaging on ink-jet printer standard, commercially available of that recommended, standard, commercially available ink-jet printing ink, and need be after imaging the described version of wet process, and have the ability of the high-resolution four-color process goods of printing.This polyester ink jet printing version also can be on such as other the non-impact types of laser printer, duplicator, dot-matrix printer and impact printer and is used imaging on the typewriter, thermal printer of oil base colour band.The quality of image will depend on the ability of imaging device.The printing capability of the galley on the offset press remains unchanged substantially; Wherein printing depends on imaging device and printing machine setting.The experiment of being carried out shows, 20000 parts of printing each sides when using the imaging of Epson ink-jet printer are to using 5000 parts of laser printer or duplicator not wait.
Another unique feature is that described galley also can be used the manual methods imaging such as writing on described version with writing pen and planographic ink.Hand-written additive comprises signature etc., also can use the special interpolation pen that the oleophylic ink is housed to add.
The uniqueness of described version also is to be coated with traditional diazonium coating of smearing thereon.Available hand is applied to these diazonium coatings on the surface of described version, and exposes with ultraviolet light source by the negative egative film.Thereafter, the lacquer developer of smearing of available standards is handled described version in the ordinary way.The printing quality of described version is similar to the printing quality of traditional printing version.
The invention still further relates to ink and accept the improvement of substrate, wherein can effectively reproduce 2% site, but rapid draing simultaneously, inviolateness, no background scum silica frost, the site increase meets industrial standard, and printed resolution satisfies the commercial printing needs.
When being used for ink-jet printer, the uniqueness of described version is that it uses standard ink, can reduce cost, and be attached to the normal workflow that is used for office, printing shop and publishing house easily.
The uniqueness of described version is that also it is not subjected to the restriction of the size of polyester laser version, and this is because ink-jet printer is applicable to big format (60 " or bigger width) prints.
Described version can have very high resolution ratio especially, comprises the random mode screening (fm screening) that is used to reproduce high-quality chromophotograph photorealism.
Another unique and practical feature is that the identical ink-jet printer that is used for imaging on described version also can be used for the color digital correction of four-color process work.This has guaranteed color proof and very approaching by the resulting final print result of the galley of imaging on same printer.Big format ink-jet printer is widely used in correction in printing and newspaper mechanism.This polyester ink jet printing version is attached in their present workflows well.
The present invention also aims to provide the preparation of cheap and simple directly to print the method for galley.
The purpose of this invention is to provide a kind of method of using commercially available ink to make a plate, and improve at the bottom of the hydrophilic group, the HP 51645A of Hewlett-Packard for example, HP 51640A and HP51629A ink so that it is suitable for the commercially available ink that inkjet printing is used; Epson T5431 photography is black, Epson T480011 black ink; Epson T5437 somber ink; Epson T5432 is bluish-green, the bluish-green ink of Epson T483011; Epson T5434 Huang, the yellow ink of Epson T481011; Epson T5435 bluish-green, Epson T485011 bluish-green ink; The shallow fuchsin of Epson T5436, shallow magenta ink of Epson T484011 or the like.
Another object of the present invention is the image that is rendered as picture by any and all inks, and described ink is commercially available pigmented inks and upgrading products thereof.
Another purpose of the present invention is the improvement that ink receives substrate, and wherein 2% site can be reproduced effectively.
Further aim of the present invention is the improvement that ink receives substrate, has wherein realized being up to 6 reversal printing.
Further object of the present invention provides a kind of lithographic plate that can receive information thereon, be used for from comprising typewriter, transcribe reproduction with any output device of manifolding equipment, dot-matrix printer, ink-jet printer or laser printer, so the reproduction of being undertaken by the manual application of waiting to reproduce target.
Another object of the present invention is the improvement at the bottom of the hydrophilic group, also can be by the laser printer imaging with the preparation lithographic plate at the bottom of the described hydrophilic group.
The invention provides by reaching the compatibility that all inks reproduce images arbitrarily, described ink is commercially available pigmented inks and upgrading products thereof.When using ink-jet printer, described version provides the advantage of multiple uniqueness:
The invention provides by reaching the compatibility that all inks reproduce images arbitrarily, described ink is commercially available pigmented inks and upgrading products thereof.Can use standard ink.Therefore expense is lower, and the galley imaging process can be attached in the normal workflow of office, printing shop and publishing house.
An object of the present invention is to provide a kind of galley, itself and the purposes compatibility of using traditional diazonium, photoresist and heat version coating.Further aim of the present invention is according to the improvement at the bottom of the hydrophilic group of the present invention, and it can pass through to use the thermosol transfer printing process imaging of hot stamping silk ribbon with the preparation lithographic plate.Another purpose is the improvement at the bottom of the hydrophilic group, and it can use special ink to pass through the calligraphy imaging with the preparation lithographic plate, or passes through to use the typewriter imaging of oil base colour band with the preparation lithographic plate.
Typically, according to the present invention, can adopt photochemical method to use photosensitive coating to handle at the bottom of the described hydrophilic group.When the image masterplate that uses mask to use, the described substrate formation image that can under actinic light, expose, this can be used as lithographic plate.Described photosensitive coating can be positivity or negativity polymeric system.
Further, design has unique coating of ink receiving layer, can be the imaging substrate that general being used to prepares lithographic plate.
According to the present invention, a kind of method of the digital printed version of preparation of cheap and simple is provided, this galley can imaging on the digital printed device of standard.
Method of the present invention especially has following step:
Selection is used to make the suitable substrates of galley:
Described substrate can be preferably natural or synthetic polymeric sheet arbitrarily.Preferably, the hot strength of described substrate is 400 to 3000Kgm/cm
2, be preferably 1600 to 2400Kgm/cm
2
Preferably, described substrate has 0.2 to 2.0% shrinkage factor through suitable heat treatment when being heated with 150c/10min with box lunch, be preferably 0.4 to 0.8% shrinkage factor.The nominal thickness of described substrate is preferably 50mic to 250mic, and more preferably 75mic is to 175mic.
Do not have the restriction of size as the described version of lithographic plate, therefore aspect width and length without limits, described version can be made to such an extent that be used for any wide format printing that the width maximum can reach 4 meters.The size of the version of the method according to this invention manufacturing can be the virtually any size of A8 to A0.
For imaging on the big format printer of 100 meters of length up, described version can be a rolling.
In one aspect of the invention, the substrate of so selecting can be the coextrusion substrate of paper or paper laminate or polymer plastic.
According to another embodiment of the invention, described substrate can be selected from synthetic polymer membranes, is generally PVC/ polyethylene (Poly) laminated material.
The method of the described version of the preparation of relevant described embodiment comprises handles substrate to change the surface energy of substrate, makes it have wettability preferably, and improves the bonding of functional coating.
The bonding of described lithographic coatings is crucial for described version during printing in the validity aspect resistance to wearing.
According to an aspect of the present invention, a kind of pattern of the preparation substrate of relevant described embodiment is to use corona charging (corona charge) to improve surperficial energy.
In another embodiment that makes described substrate modification (subbing the substrate) of relevant described embodiment, adopt halogenated aliphatic acid to carry out acid treatment with the described surface of etching.Strengthen the surface by during handling, sneaking into fused silica with identical method.
The key that is used for the described technology on described surface is the used technological temperature and the time of staying.
In another modification (subbing) pattern of relevant described embodiment, use polymer resin to strengthen bonding characteristic, for example the copolymer of the acrylate of polyurethane, mylar, vinyl acetate polymer, acrylate and replacement (wherein substituted alkyl can be methyl, propyl group and butyl etc.), the acrylate of hydroxyl replacement and the copolymer of methacrylate etc.
Make in the embodiment of substrate modification at relevant of the present invention another, use the described surface of chlorinated phenols etching.
The principal character of technology of the present invention is that the bonding of described lithographic coatings is conclusive for the wear-resistant validity of described version during printing.
The lithographic coatings of relevant described embodiment is hydrophilic, and realizes by the suprabasil one deck at least of described modification, preferred two-layer coating.
Usually, particularly suitable crosslinked hydrophilic layer is by hydrophilic adhesive and suitable crosslinking agent, and for example formaldehyde, glyoxal, polyfunctional group aziridine, ammonium zirconium carbonate, melamine-type crosslinking agent carry out crosslinked and obtain.
Suitable accelerator makes crosslinked acceleration such as ammonium chloride, aluminum sulfate, aluminium chloride, carbonic acid ammonia, sulfonic acid, alkyl sulfonic acid, aromatic sulphonic acid by using.
This accelerator makes the described crosslinked network speed (web speed) that reaches 200 feet per minutes under 30 seconds the time of staying effectively.
Above be used for the cross-linked hydrophilic binding agent and also can comprise the inorganic pigment that increases this layer mechanical strength, for example metal oxide of silicon, titanium, zinc, aluminium, tin or transition metal.
These pigment can also comprise the natural silicate ore that gets, for example mica, china clay, alumina silicate, sodium metasilicate etc.
The preferred pigments of using is the oxide of silicon, titanium, zinc and aluminium, and the silicate that derives from inorganic ore deposit form.
The coating of the two layer form of described layer can make this structure have particular shape, and has the nanochannel that ink is passed through.
About the coating of the two layer form of described embodiment can make the solubility of crosslinking hydrophilic coating and hydrophily have distinctive balance.
Uniqueness of the present invention is to select the silicon dioxide microparticle of suitable grade, and the scope of its mesopore volume is 0.2ml/gm to 1.8ml/gm.
Uniqueness of the present invention is to select the silicon dioxide microparticle of suitable grade, and wherein micron-scale (mircon size) changes to being up in 10 microns the scope at 2 microns.
The selection of described silica has determined rate of drying and the application's image resolution ratio.
Spendable hydrophilic adhesive is a copolymer, the for example polymer and the copolymer of vinyl alcohol, acrylamide, NMA, methacrylic acid, Hydroxyethyl Acrylate and methacrylic acid hydroxyl methyl esters, the maleic anhydride copolymers that replaces, maleic anhydride, with vinyl methyl ether copolymer or its combination, PVP.
Can use cationic surfactant with the receptivity of lithographic coatings modification aptly with the increase image.
According to the present embodiment, the thickness of described coating in individual layer changes between 10 to 30 microns.It is that 5 to 15 microns, the second layer are 10 to 25 microns and obtain that the final thickness of described coating can also make the ground floor thickness of coating.
In another embodiment, the bilateral with described substrate is coated with so that all printable from the two sides.
In described embodiment, described coating can be processed under daylight and can carry out manufacturing operation under daylight.The processing of described version also can be carried out under daylight.
Feature of the present invention is that the uniqueness of used coating makes can form image by the ink-jet printer with above-mentioned standard print cartridge, so that receive ink during lithographic printing.
Depend on the covering of ink, unique prescription makes the ink can be dry within 5 minutes.
As disclosed in embodiments, in the present invention, can pass through traditional screening reproduced image.
As disclosed in embodiments, in the present invention, can also on ink-jet printer, pass through random mode screening reproduced image.The present performance of printer is to be up to 2400dpi.
In the present invention, the uniqueness of described version can make the non-image areas of cleaning not have scum silica frost, and guarantees to start quickly.The site increases in the industrial standard scope.
Can provide four look disposal abilities, the newspaper application that it is suitable for the application in packing, printing and is used for significantly printing.
According to a further aspect in the invention, the uniqueness of described technology further comprises the image fixing (fixing) that will be formed on the described version, to increase printing.
Adopt suitable photographic fixing, realized the most nearly printing of 10000 impressions.
In the present invention above, the heat back imaging of solidifying image is studied.
If described version is solidified 60 seconds to 180 seconds the time of staying in 150 ℃ to 200 ℃ temperature range, can realize photographic fixing.Printing increases.
Can also use chemical fixing agent to realize photographic fixing, when it is dry, increase printing.
Chemical fixing agent is the emulsion of hydrophobic resin in suitable sensitization medium normally.
Described resin can be hydrocarbon resins or acrylate, the copolymer of acrylate.The sensitization medium that uses can be a natural gum, cellulose, carboxy methyl cellulose, starch or the like.
Now with reference to subsidiary embodiment the present invention is described.
Embodiment:
Following non-limiting embodiment is used for that the present invention is described in detail.
Embodiment 1:
Use Agfa laser to connect the routine techniques of version
Use the laser that can buy on the market, make to connect version by M/s Agfa, black by Epson 7600 printers, Epson 480011 is deceived and Epson T5437 somber ink prints image thereon with Epson T5431 photography.Measure the drying time of printing image.
All surpass 4 hours drying time in all cases, and ink can be wiped still when with the finger wiping.
When resolution ratio was 100lpi (line/inch) netting twine number, the point more than 30% oozed out and is loose.
Reversal printing oozes out and is unintelligible.
Embodiment 2
Use the routine techniques of Omega EZ
Use the Omega EZ that can buy on the market, make to connect version by the M/s automatic type, by Epson 7600 printers with Epson T5431 photography deceive, Epson T5437 somber and Epson 480011 black inks print image thereon.Measure the drying time of printing image, and surpass 4 hours drying time, and ink still can be wiped when with the finger wiping.When resolution ratio is 120lpi netting twine number, find in being higher than 70% point that the site increases and loose.
Reversal printing oozes out and is unintelligible.
Embodiment 3
Use the routine techniques of Nova Dom
" Nova Dom " laser printing version that use is made by the applicant, black with Epson T5431 photography by Epson 7600 printers, Epson T5437 somber and Epson 480011 black inks print image thereon.Measure the drying time of printing image, it surpasses 2 hours, and ink still can be wiped when with the finger wiping.When resolution ratio is 120lpi netting twine number, find in being higher than 70% point that the site increases and loose.
Reversal printing oozes out and is unintelligible.
Embodiment 4
According to embodiments of the invention
Prepare lithographic plate of the present invention in the following manner:
The substrate that selection is used to make galley from polyester sheet, described polyester sheet has 2200Kgm/cm
2Hot strength and 100 microns thickness, the width of 297mm and the length of 420mm.Described sheet material temperature with 180 ℃ in drying tunnel is added thermostabilization, and the time of staying is 2 minutes.The sheet material modification that to shrink with the acid treatment of following composition.
Improved composition 1
Water 97%
Trichloroacetic acid 5%
Surfactant 0.05%
With 140 ℃ temperature heat treated 30 seconds, make described acid be melted in described polyester on the surface of described element of modification like this.
Lithographic plate composition 1
Form hydrophilic lithographic printing coating separately by the polyvinyl alcohol reaction that makes 240 gram partial hydrolysis, in reactor, under 80 ℃ temperature, mixed 2 hours with 60 gram polyacrylamide solutions.
This mixture is used for 770 gram TiO
2With 260 gram pore volumes be the dispersion of the silicon dioxide microparticle of 1.2ml/gm, dynamically disperseing 2 hours in the disperser.
To the nonyl phenol that wherein adds 15 gram crosslinking agent imidazoles, 8 gram accelerator ammonium sulfate, 8 gram catalyst p-methyl benzenesulfonic acid and 5 gram ethoxylations.With the homogenize 6 hours in pearl mill of described coating composition.
Above-mentioned Aquo-composition is coated with to two-layer on the element of described modification with sampling rod (draw down bar).
Be coated with, produce ground floor and be 10 microns, the second layer and be 15 microns layer.
The version that has described coating on it was solidified 1 minute in the aerofoil profile drier, and wherein for each layer, temperature remains on 150 ℃.
Prepare the several piece version and be used for printing image thereon, this is, Epson T5437 somber black with Epson T5431 photography by Epson 7600 and 9600 printers and Epson 480011 black inks, with by HP DeskJet series printer, as HP850, HP880, HP690, with HP DesignJet series printer, as HP2500, HP3500, HP430, HP755, HP5000, HP5500, use HP51645A, HP51640A and HP51629A ink carry out respectively.
About each image, ink is dry on each edition within 5 minutes, and has formed distinct image on this version.
In all cases, made image fixing on version in 3 minutes by in baking oven, under 140 ℃, solidifying.
Measure the printing of the result that obtains on the version, and printing is up to 100 impressions.For 100 printings, the wear resistant hardness of coating is gratifying.
Determine resolution ratio by increasing in the site of 2 to 100% scopes under 100lpi, wherein the increase of the institute site of obtaining is in the margin of tolerance of industrial permission.
The definition of the reversal printing by being up to 6 sizes is determined resolution ratio, wherein is up to 6 reversal printing cleaning and clear.
Embodiment 5
According to embodiments of the invention
Prepare lithographic plate of the present invention in the following manner:
The substrate that selection is used to make galley from polyester sheet, described polyester sheet has 2200Kgm/cm
2Hot strength and 100 microns thickness, the width of 297mm and the length of 420mm.Described sheet material temperature with 180 ℃ in drying tunnel is added thermostabilization, and the time of staying is 2 minutes.The sheet material modification that to shrink with the acid treatment of following composition.
Improved composition 1
Water 95%
Trichloroacetic acid 4%
Surfactant (phenol in the ninth of the ten Heavenly Stems of ethoxylation) 0.05%
Silica 3%
With 140 ℃ temperature heat treated 30 seconds, make described acid be melted in described polyester on the surface of described element of modification like this.
Add silica and increased surface area, and provide and be used for by the incompatible silanol base of hydrogen bond in conjunction with succeeding layer.
Lithographic plate composition 1
Form hydrophilic lithographic printing coating separately by the polyvinyl alcohol reaction that makes 240 gram partial hydrolysis, in reactor, under 80 ℃ temperature, mixed 2 hours with 60 gram polyacrylamide solutions.
This mixture is used for 770 gram TiO
2With 260 gram pore volumes be the dispersion of the silicon dioxide microparticle of 1.2ml/gm, dynamically disperseing 2 hours in the disperser.
To the nonyl phenol that wherein adds 15 gram crosslinking agent imidazoles, 8 gram accelerator ammonium sulfate, 8 gram catalyst such as p-methyl benzenesulfonic acid and 5 gram ethoxylations.With the homogenize 6 hours in pearl mill of described coating composition.
Above-mentioned Aquo-composition is coated with to two-layer on the element of described modification with sampling rod.
Be coated with, produce ground floor and be 10 microns, the second layer and be 15 microns layer.
The version that has described coating on it was solidified 1 minute in the aerofoil profile drier, and wherein for each layer, temperature remains on 150 ℃.
Prepare the several piece version and be used for printing image thereon, this is, Epson T5437 somber black with Epson T5431 photography by Epson 7600 and 9600 printers and Epson 480011 black inks, with by HP DeskJet series printer, as HP850, HP880, HP690, with HP DesignJet series printer, as HP2500, HP3500, HP430, HP755, HP5000, HP5500, use HP51645A, HP51640A and HP51629A ink carry out respectively.
In all cases, ink is dry on version within 5 minutes, and has formed distinct image on this version.
Made image fixing on version in 3 minutes by in baking oven, under 140 ℃, solidifying.
Measure the printing of the result's that obtains 10000 impressions on it.Coating and image still remain intact.
The wear resistant hardness of coating has been born 10000 printing.
The printing of the described identical lithographic plate of test in above-mentioned experiment under the situation that version is solidified, and find the printing that is up to 2000 impressions can be provided.Coating remains intact.
Determine resolution ratio by increasing in the site of 2 to 100% scopes under 100lpi, wherein the increase of the institute site of obtaining is in the margin of tolerance of industrial permission.
The definition of the reversal printing by being up to 6 sizes is determined resolution ratio, wherein is up to 6 reversal printing cleaning and clear.
The interpolation and the fusion of fused silica have appreciable impact to printing.
Embodiment 6
Prepare lithographic plate of the present invention in the following manner:
The composition that preparation is identical with embodiment 4, different is to be used for being made by following composition in conjunction with the modified layer of lithographic plate composition:
The copolymer 1 5% of alkyd resin
The PvOH 10% of 99% hydrolysis
The acrylic emulsions 10% of ethyl acrylate, butyl acrylate
Water 50%
The modified solution that so forms is coated on through on the sheet surface of corona discharge, thereby obtains the surperficial dyne level of 45dynes/cm.
Lithographic plate composition described in the embodiment 4 is administered on this sheet material with two-layer, and makes lithographic plate in an identical manner.
Prepare the several piece version and be used for printing image thereon, this is, Epson T5437 somber black with Epson T5431 photography by Epson 7600 and 9600 printers and Epson 480011 black inks, with by HP DeskJet series printer, as HP850, HP880, HP690, with HP DesignJet series printer, as HP2500, HP3500, HP430, HP755, HP5000, HP5500, use HP51645A, HP51640A and HP51629A ink carry out respectively.
In all cases, ink is dry on version within 5 minutes, and has formed distinct image on this version.
Made image fixing on version in 3 minutes by in baking oven, under 140 ℃, solidifying.
Measure the printing of the result that obtains on it, even described image remains intact also after 10000 impressions.
The wear resistant hardness of coating has been born 10000 printing, and described coating remains intact.
The printing of the described identical lithographic plate of test in above-mentioned experiment under the situation that version is solidified, and find the printing that is up to 2000 impressions can be provided.Coating remains intact.
Determine resolution ratio by increasing in the site of 2 to 100% scopes under 100lpi, wherein the increase of the institute site of obtaining is in the margin of tolerance of industrial permission.
The definition of the reversal printing by being up to 6 sizes is determined resolution ratio, wherein is up to 6 reversal printing cleaning and clear.
Embodiment 7
Prepare lithographic plate of the present invention in the following manner:
The composition that preparation is identical with embodiment 6, different is, and silicon dioxide microparticle used in the lithographic plate composition is less, and pore volume is 0.2mm/gm.
Prepare the several piece version and be used for printing image thereon, this is, Epson T5437 somber black with Epson T5431 photography by Epson 7600 and 9600 printers and Epson 480011 black inks, with by HP DeskJet series printer, as HP850, HP880, HP690, with HP DesignJet series printer, as HP2500, HP3500, HP430, HP755, HP5000, HP5500, use HP51645A, HP51640A and HP51629A ink carry out respectively.
Ink is dry on version after 30 minutes, and image has the site increase and stain is arranged.
Made image fixing on version in 3 minutes by in baking oven, under 140 ℃, solidifying.
Measure the printing of the result that obtains on it, even described image remains intact also after 10000 impressions.
The wear resistant hardness of coating has been born 10000 printing, and described coating remains intact.
Unacceptable by the resolution ratio that 2 to the 100% sites increase of 100lpi is determined.
The preparation that this shows for the lithographic plate that uses with ink-jet apparatus, the pore volume that is used for the silica of lithographic plate composition has remarkable influence to the resolution ratio of printing.
Embodiment 8
Prepare lithographic plate of the present invention in the following manner:
The composition that preparation is identical with embodiment 6, different is lithographic plate composition is administered on the described modified support of embodiment 6 with individual layer.
Prepare the several piece version and be used for printing image thereon, this is, Epson T5437 somber black with Epson T5431 photography by Epson 7600 and 9600 printers and Epson 480011 black inks, with by HP DeskJet series printer, as HP850, HP880, HP690, with HP DesignJet series printer, as HP2500, HP3500, HP430, HP755, HP5000, HP5500, use HP51645A, HP51640A and HP51629A ink carry out respectively.
In all cases, ink is dry on version within 5 minutes, and has formed distinct image on this version.
Made image fixing on version in 3 minutes by in baking oven, under 140 ℃, solidifying.
Measure the printing of the result that obtains on it, even described image remains intact also after 10000 impressions.
The wear resistant hardness of coating has been born 10000 printing, and described coating remains intact.
By increase definite resolution ratio in the site of 2 to 100% scopes under 100lpi, wherein the increase of gained site exceeds resulting site increase 5% in the experiment 6 in the site that is higher than 70%.
But the resolution ratio of the reversal printing of 6 sizes is ambiguous.
This shows the preparation for the lithographic plate that uses with ink-jet apparatus, and using composition with individual layer has remarkable influence to the resolution ratio of printing.
Embodiment 9
Prepare lithographic plate of the present invention in the following manner:
The modified layer that is used for modification and method are identical with embodiment's 6.
Form hydrophilic lithographic printing coating separately by the polyvinyl alcohol reaction that makes the whole hydrolysis of 240 grams, in reactor, under 80 ℃ temperature, mixed 2 hours with 60 gram polyacrylamide solutions.
This mixture is used for 770 gram TiO
2With 260 gram pore volumes be the dispersion of the silicon dioxide microparticle of 1.2ml/gm, dynamically disperseing 2 hours in the disperser.
To wherein adding 15 gram crosslinking agent imidazoles and 5 gram cationic surfactants.With the homogenize 6 hours in pearl mill of described coating composition.
And have guiding coating machine that direct arc roll-type covers glassware with above-mentioned Aquo-composition with on the two-layer sheet material that is coated on modification.The version that has described coating on it was solidified 1 minute in the aerofoil profile drier, and simultaneous temperature remains on 150 ℃.
Prepare the several piece version and be used for printing image thereon, this is, Epson T5437 somber black with Epson T5431 photography by Epson 7600 and 9600 printers and Epson 480011 black inks, with by HP DeskJet series printer, as HP850, HP880, HP690, with HP DesignJet series printer, as HP2500, HP3500, HP430, HP755, HP5000, HP5500, use HP51645A, HP51640A and HP51629A ink carry out respectively.
In all cases, ink is dry on version within 5 minutes, and has formed distinct image on this version.
Made image fixing on version in 3 minutes by in baking oven, under 140 ℃, solidifying.
Measure the printing of the result that obtains on it, obtained 1000 printing.
The wear resistant hardness of coating can not be born and be surpassed 1000 printing, and after this coating is weakened.
Determine resolution ratio by increasing in the site of 2 to 100% scopes under 100lpi, wherein the increase of the institute site of obtaining is in the margin of tolerance of industrial permission (qualified).
The definition of the reversal printing by being up to 6 sizes is determined resolution ratio, wherein is up to 6 reversal printing cleaning and clear.
Therefore as seen, adding accelerator and catalyst is crucial for making coating have wear resistant hardness, and influential to printing.
Embodiment 10
Prepare lithographic plate of the present invention in the following manner:
The composition that preparation is identical with embodiment 6, different is to be used for being made by following composition in conjunction with the modified layer of lithographic plate composition:
The copolymer 1 2-20% of alkyd resin
The PvOH 6-12% of 99% hydrolysis
The acrylic emulsions 15-35% of ethyl acrylate, butyl acrylate
Water 67-33%
The modified solution that so forms is coated on through on the sheet surface of corona discharge, thereby obtains the surperficial dyne level of 45dynes/em.
The lithographic plate component
Form hydrophilic lithographic printing coating separately by the polyvinyl alcohol reaction that makes 240 gram partial hydrolysis, in reactor, under 80 ℃ temperature, mixed 2 hours with 60 gram polyacrylamide solutions.
This mixture is used for 770 gram TiO
2With 260 gram pore volumes be the dispersion of the silicon dioxide microparticle of 1.2ml/gm, dynamically disperseing 2 hours in the disperser.
To wherein adding 15 gram crosslinking agent imidazoles, 8 gram accelerator ammonium sulfate, 8 gram catalyst p-methyl benzenesulfonic acid and 5 gram cationic surfactants.With the homogenize 6 hours in pearl mill of described coating composition.Above-mentioned Aquo-composition is coated with to two-layer on the element of described modification with sampling rod.The version that has described coating on it was solidified 1 minute in the aerofoil profile drier, and simultaneous temperature remains on 150 ℃.
Above-mentioned lithographic plate composition is administered on this sheet material with two-layer, and makes lithographic plate in an identical manner.
Prepare the several piece version and be used for printing image thereon, this is, Epson T5437 somber black with Epson T5431 photography by Epson 7600 and 9600 printers and Epson 480011 black inks, with by HP DeskJet series printer, as HP850, HP880, HP690, with HP DesignJet series printer, as HP2500, HP3500, HP430, HP755, HP5000, HP5500, use HP51645A, HP51640A and HP51629A ink carry out respectively.
Ink is dry on version within 5 minutes, but the image resolution rate variance that on this edition, forms.
Made image fixing on version in 3 minutes by in baking oven, under 140 ℃, solidifying.
Measure the printing of the result that obtains on it, printing is up to 10000 impressions, and image remains intact.
The wear resistant hardness of coating has been born 10000 printing, and coating remains intact.
By increase definite resolution ratio in the site of 2 to 100% scopes under 100lpi, wherein the increase of gained site is very high at dash area, not in the margin of tolerance of industrial permission.
The resolution ratio of determining by the definition of reversal printing is up to 6 sizes, and the reversal printing that wherein is up at 6 is unclear and stain is arranged.
Therefore as seen, the ratio of used silica is crucial to the final resolution ratio of the image of formation, and print resolution is influential.
Embodiment 11
Prepare lithographic plate of the present invention in the following manner:
The composition that preparation is identical with embodiment 6, different is to be used for being made by following composition in conjunction with the modified layer of lithographic plate composition:
The copolymer 1 2-20% of alkyd resin
The PvOH 6-12% of 99% hydrolysis
The acrylic emulsions 15-35% of ethyl acrylate, butyl acrylate
Water 67-33%
The modified solution that so forms is coated on through on the sheet surface of corona discharge, thereby obtains the surperficial dyne level of 45dynes/cm.
The lithographic plate component
Form hydrophilic lithographic printing coating separately by the polyvinyl alcohol reaction that makes 240 gram partial hydrolysis, in reactor, under 80 ℃ temperature, mixed 2 hours with 60 gram polyacrylamide solutions.
This mixture is used for 680 gram china clay and 260 gram pore volumes are the dispersion of the silicon dioxide microparticle of 1.2ml/gm, is dynamically disperseing 8 hours in the disperser.
To wherein adding 15 gram crosslinking agent imidazoles, 8 gram accelerator ammonium sulfate, 8 gram catalyst p-methyl benzenesulfonic acid and 5 gram cationic surfactants.With the homogenize 6 hours in pearl mill of described coating composition.Above-mentioned Aquo-composition is coated with to two-layer on the element of described modification with sampling rod.The version that has described coating on it was solidified 1 minute in the aerofoil profile drier, and simultaneous temperature remains on 150 ℃.
Above-mentioned lithographic plate composition is administered on this sheet material with two-layer, and makes lithographic plate in an identical manner.
Prepare the several piece version and be used for printing image thereon, this is, Epson T5437 somber black with Epson T5431 photography by Epson 7600 and 9600 printers and Epson 480011 black inks, with by HP DeskJet series printer, as HP850, HP880, HP690, with HP DesignJet series printer, as HP2500, HP3500, HP430, HP755, HP5000, HP5500, use HP51645A, HP51640A and HP51629A ink carry out respectively.
Ink is dry on version within 5 minutes, but the image resolution rate variance that on this edition, forms.
Made image fixing on version in 3 minutes by in baking oven, under 140 ℃, solidifying.
Measure the printing of the result that obtains on it, printing is up to 10000 impressions, and image remains intact.
The wear resistant hardness of coating has been born 10000 printing, and coating remains intact.
Determine resolution ratio by increasing in the site of 2 to 100% scopes under 100lpi, wherein the increase of the institute site of obtaining is in the margin of tolerance of industrial permission.
The resolution ratio of determining by the definition of reversal printing is up to 6 sizes, and the reversal printing that wherein is up at 6 is clearly.
Therefore as seen, also can enough micronized china clay as pigment, obtain similar printing performance.
Embodiment 12
Identical composition among preparation and the embodiment 6, the lithographic plate composition of coating that different is comprises 8 and restrains methanesulfonic acids.
With sampling rod with above-mentioned Aquo-composition with on the two-layer sheet material that is applied to modification.
Be coated with, obtain ground floor and be 10 microns, the second layer and be 15 microns layer.
Each layer that has the version of described coating on it was solidified 1 minute in the aerofoil profile drier, and the while, each layer all remained under 150 ℃ the temperature.
Prepare the several piece version and be used for printing image thereon, this is, Epson T5437 somber black with Epson T5431 photography by Epson 7600 and 9600 printers and Epson 480011 black inks, with by HP DeskJet series printer, as HP850, HP880, HP690, with HP DesignJet series printer, as HP2500, HP3500, HP430, HP755, HP5000, HP5500, use HP51645A, HP51640A and HP51629A ink carry out respectively.
It is similar to Example 6 that institute obtains the result.
Embodiment 13
Identical composition among preparation and the embodiment 6, the lithographic plate composition of coating that different is also comprises 5 and restrains UV absorbent Uvitex OB.
With sampling rod with above-mentioned Aquo-composition with on the two-layer sheet material that is applied to modification.
Be coated with, obtain ground floor and be 10 microns, the second layer and be 15 microns layer.
The version that has described coating on it was solidified in the aerofoil profile drier 1 minute, and each layer all remains under 150 ℃ the temperature simultaneously.
When as during above embodiment testing of printed image, find that its contrast is better than not comprising the version of UV absorbent.Therefore the aesthetic property of image is improved.
Embodiment 14
Identical composition among preparation and the embodiment 5, it is the silica of the precipitation of 0.2ml/gm through acid-treated aluminium oxide and 200 gram hole values that the lithographic plate composition of coating that different is also comprises 60 grams respectively.
With sampling rod with above-mentioned Aquo-composition with on the two-layer sheet material that is applied to modification.
As described in embodiment 5, be coated with.
The version that has described coating on it was solidified in the aerofoil profile drier 1 minute, and each layer all remains under 150 ℃ the temperature simultaneously.
When as during above embodiment test pattern, printing is lower than 2000, and the resolution ratio that is higher than 70% site has 8% site and increases.This shows that the silica that uses aluminium oxide or do not have the precipitation of the hole value of finding can not obtain the desired result of the present invention.
Embodiment 15
Identical composition among preparation and the embodiment 5, the hydrophilic binder agent composition that different is is used for the lithographic plate composition comprises the copolymer of the methyl methacrylate of 60 gram hydroxyls replacements.
With sampling rod with above-mentioned Aquo-composition with on the two-layer sheet material that is applied to modification.
Be coated with and drying as above embodiment.
Prepare the several piece version and be used for printing image thereon, this is, Epson T5437 somber black with Epson T5431 photography by Epson 7600 and 9600 printers and Epson 480011 black inks, with by HP DeskJet series printer, as HP850, HP880, HP690, with HP DesignJet series printer, as HP2500, HP3500, HP430, HP755, HP5000, HP5500, use HP51645A, HP51640A and HP51629A ink carry out respectively.
It is similar to Example 6 that institute obtains the result.
Embodiment 16
Identical composition among preparation and the embodiment 5, the lithographic plate composition of coating that different is comprises the methylated urea of 15 grams, and the replacement imidazoles is as crosslinking agent.
Be coated with in an identical manner and drying.
Prepare the several piece version and be used for printing image thereon, this is, Epson T5437 somber black with Epson T5431 photography by Epson 7600 and 9600 printers and Epson 480011 black inks, with by HP DeskJet series printer, as HP850, HP880, HP690, with HP DesignJet series printer, as HP2500, HP3500, HP430, HP755, HP5000, HP5500, use HP51645A, HP51640A and HP51629A ink carry out respectively.
It is similar to Example 6 that institute obtains the result.
Embodiment 17
Identical composition among preparation and the embodiment 5, the lithographic plate composition of coating that different is comprise 240 polyvinyl alcohol that restrain partial hydrolysis, and the polyvinyl alcohol that replaces whole hydrolysis is as hydrophilic adhesive.
With sampling rod with above-mentioned Aquo-composition with on the two-layer sheet material that is applied to modification.
Be coated with and drying as above embodiment.
Prepare the several piece version and be used for printing image thereon, this is, Epson T5437 somber black with Epson T5431 photography by Epson 7600 and 9600 printers and Epson 480011 black inks, with by HP DeskJet series printer, as HP850, HP880, HP690, with HP DesignJet series printer, as HP2500, HP3500, HP430, HP755, HP5000, HP5500, use HP51645A, HP51640A and HP51629A ink carry out respectively.
It is similar to Example 6 that institute obtains the result.
Embodiment 18
Prepare lithographic plate of the present invention in the following manner:
The composition that preparation is identical with embodiment 6, different is to be used for being made by PvOH, the PvAc of 12-20%, the copolymer of PvCl (trade name VMCH) in conjunction with the modified layer of lithographic plate composition.
The modified solution that so forms is coated on through on the sheet surface of corona discharge, thus the surperficial dyne level of acquisition 45dynes/cm.
As the moisture lithographic plate composition coating that will be similar to embodiment 6 as described in the embodiment 6 and dry.
Prepare the several piece version and be used for printing image thereon, this is, Epson T5437 somber black with Epson T5431 photography by Epson 7600 and 9600 printers and Epson 480011 black inks, with by HP DeskJet series printer, as HP850, HP880, HP690, with HP DesignJet series printer, as HP2500, HP3500, HP430, HP755, HP5000, HP5500, use HP51645A, HP51640A and HP51629A ink carry out respectively.
Ink is dry on version within 5 minutes, but the image resolution rate variance that on this edition, forms.
Made image fixing on version in 3 minutes by in baking oven, under 140 ℃, solidifying.
Measure the printing of the result that obtains on it, printing is up to 10000 impressions, and image remains intact.
The wear resistant hardness of coating has been born 10000 printing, and coating remains intact.
Determine resolution ratio by increasing in the site of 2 to 100% scopes under 100lpi, wherein the increase of the institute site of obtaining is in the margin of tolerance of industrial permission.
The resolution ratio of determining by the definition of reversal printing is up to 6 sizes, and the reversal printing that wherein is up at 6 is clearly.
Embodiment 19
As preparation lithographic plate as described in the embodiment 6, the sheet material that different is is used to be coated with is that the cob value is the high wet strength paper of 20 120gsm.
Copolymer with polystyrene is coated with this paper to improve wet strength.As described in the embodiment 6 thereon with two-layer coating such as embodiment 6 described lithographic plate compositions and dry.
Prepare the several piece version and be used for printing image thereon, this is, Epson T5437 somber black with Epson T5431 photography by Epson 7600 and 9600 printers and Epson 480011 black inks, with by HP DeskJet series printer, as HP850, HP880, HP690, with HP DesignJet series printer, as HP2500, HP3500, HP430, HP755, HP5000, HP5500, use HP51645A, HP51640A and HP51629A ink carry out respectively.
Ink is dry on version within 5 minutes, but the image resolution rate variance that on this edition, forms.
Made image fixing on version in 3 minutes by in baking oven, under 140 ℃, solidifying.
Measure the printing of the result that obtains on it, printing is up to 10000 impressions, and image remains intact.
The wear resistant hardness of coating has been born 10000 printing, and coating remains intact.
Determine resolution ratio by increasing in the site of 2 to 100% scopes under 100lpi, wherein the increase of the institute site of obtaining is in the margin of tolerance of industrial permission.
The resolution ratio of determining by the definition of reversal printing is up to 6 sizes, and the reversal printing that wherein is up at 6 is clearly.
The hydrophilic coating of preparation can be coated with on coating machine with arbitrary coating process, these coating processes are selected from:
Meir rod line coating (Meir bar wire coatings)
Arc scraper (comma doctor)
Three reverse rolls (three roll reverse)
Indirect arc scraper
The intaglio plate coating
Have the indirect intaglio plate coating of chambered doctor blade
It is crucial that the drying of described composition and curing obtain even unstressed layer to uniform coating.
Above-mentioned example is used for ink-jet imaging, thereby utilize that Epson 7600 printers are black with Epson T5431 photography, Epson is 480011 black, Epson T5437 somber, Epson T5432 is bluish-green, Epson T483011 is bluish-green, Epson T5435 bluish-green, Epson T5436 fuchsin, Epson 484011 shallow fuchsins, Epson T481011 Huang, Epson T5434 Huang etc., the Hewlett Packard ink of HP51645A, HP51640A and HP51629A obtains lithographic plate to utilize big format printer of Hewlett-Packard and commercial graphic module for example to use.
Though this paper focuses on the correlation of the structure of part of preferred embodiment and structure, but be understandable that, in the case without departing from the gist of the present invention, multiple embodiments can be formulated, and many changes can be made in preferred embodiments.According to content disclosed herein, it is apparent to those skilled in the art to make these and other variations in the preferred embodiments of the invention and other enforcement case, obviously be understandable that thus, previously described content only is to the illustrative explanation of the present invention, rather than limitation of the present invention.
Claims (25)
1, a kind of method for preparing lithographic plate comprises the steps:
The substrate that selection is used to make galley from natural or synthetic polymeric sheet, described substrate has 400 to 3000Kgm/cm
2Hot strength and 75 microns to 250 microns thickness;
By described substrate is heated in 140 ℃ to 180 ℃ temperature range described substrate is shunk, so that it has 0.2% to 2.0% shrinkage factor;
Can with described substrate modification with the surface that changes described substrate;
By make hydrophilic adhesive and crosslinking agent, accelerator, at least a pigment, at least a cationic surfactant and micron-scale between 1 to 5 micron and pore volume react to the silicon dioxide microparticle between the 1.8ml/gm at 0.2ml/gm and form hydrophilic lithographic plate coating, wherein the ratio between catalyst and accelerator and crosslinking agent and binding agent and pigment and anion surfactant and the silicon dioxide microparticle is 1: 2 to 1: 2 to 2: 1 to 20: 25 to 60: 80; With
At least the hydrophilic lithographic plate coating of one deck is administered in the substrate of described modification.
2, the method for preparing lithographic plate as claimed in claim 1, the hot strength of the sheet material of wherein said substrate is 1600 to 2400Kgm/cm
2Scope in.
3, the method for preparing lithographic plate as claimed in claim 1 or 2, the size of wherein said substrate is the size from A8 to A0.
4, as the described method for preparing lithographic plate of each claim of front, wherein selected substrate is a paper.
5, as claim 1 and the 2 described methods that prepare lithographic plate, wherein said substrate is a paper laminate.
6, as claim 1 and the 2 described methods that prepare lithographic plate, wherein said substrate is a polymer plastic.
7, the method for preparing lithographic plate as claimed in claim 6, wherein said substrate are selected from PVC or polyethylene lamination material.
8, as the described method for preparing lithographic plate of each claim of front, the modification of wherein said substrate is undertaken by corona charging.
9, as the described method for preparing lithographic plate of claim 1 to 7, the modification of wherein said substrate is to be undertaken by the acid treatment with halogenated aliphatic acid.
10, as the described method for preparing lithographic plate of claim 1 to 7, the modification of wherein said substrate is undertaken by chlorinated phenols.
11, as the described method for preparing lithographic plate of claim 1 to 7, the modification of wherein said substrate is undertaken by sneak into fused silica in described substrate.
12, as the described method for preparing lithographic plate of claim 1 to 7, the modification of wherein said substrate is undertaken by use polymer resin in substrate, and described polymer resin is selected from the polymer, acrylate of polyurethane, mylar, vinyl acetate and the alkyl that wherein replaces can be the copolymer of acrylate of replacement of methyl, propyl group and butyl or the copolymer of hydroxyl substituted acrylate and methacrylate.
13, as the described method for preparing lithographic plate of claim 1 to 7, wherein said hydrophilic adhesive is selected from least a of the binding agent group be made up of the copolymer of the polymer of the polymer of the polyvinyl alcohol of the polyvinyl alcohol of whole hydrolysis, partial hydrolysis, acrylamide, NMA, Hydroxyethyl Acrylate and methyl methacrylate, methacrylic acid hydroxyl methyl esters and acrylic acid copolymer, vinyl methyl ether and maleic anhydride adduct, polyvinylpyrrolidone etc.
14, as the described method for preparing lithographic plate of claim 1 to 7, wherein said crosslinking agent is selected from least a of the crosslinking agent group be made up of dialdehyde, methylolurea, polyfunctional aziridine, ammonium zirconium carbonate, melamine-type crosslinking agent.
15, as the described method for preparing lithographic plate of claim 1 to 7, wherein said accelerator is selected from least a of the accelerator group be made up of ammonium chloride, ammonium sulfate, aluminium, aluminium chloride, aluminum sulfate etc.
16, as the described method for preparing lithographic plate of claim 1 to 7, wherein said pigment is selected from least a of the pigment group be made up of the ore of the silicate of the oxide of the oxide of zinc, titanium, selenium and other transition metal, for example mica, china clay, alumina silicate, sodium metasilicate.
17, as the described method for preparing lithographic plate of claim 1 to 7, wherein cationic surfactant is selected from non-ionic surface active agent group at least a of the nonyl phenol of for example ethoxylation.
18, as the described method for preparing lithographic plate of claim 1 to 7, wherein said catalyst is selected from least a of the aromatic series be made up of p-methyl benzenesulfonic acid, Loprazolam etc. or aliphatic sulfonic group.
19, as the described method for preparing lithographic plate of claim 1 to 7, wherein said coating is to be applied to suprabasil with the intaglio plate rubbing method.
20, as the described method for preparing lithographic plate of claim 1 to 7, wherein said coating is to be applied to suprabasil with Meir rod line rubbing method.
21, as the described method for preparing lithographic plate of claim 1 to 7, wherein said coating is to be applied to suprabasil with the arc scraper.
22, as the described method for preparing lithographic plate of claim 1 to 7, wherein said coating is to be applied to suprabasil with three reverse roll methods.
23, as the described method for preparing lithographic plate of claim 1 to 7, wherein said coating is to be applied to suprabasil with indirect arc scraper.
24, as the described method for preparing lithographic plate of claim 1 to 7, wherein said coating is to be applied to suprabasil with the indirect intaglio plate rubbing method that has chambered doctor blade.
25,, wherein the substrate of having used described coating is solidified by heat as the described method for preparing lithographic plate of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510113287 CN1864996A (en) | 2005-05-16 | 2005-05-16 | Method for preparing planographic plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510113287 CN1864996A (en) | 2005-05-16 | 2005-05-16 | Method for preparing planographic plate |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101348048B (en) * | 2007-07-18 | 2010-05-26 | 广州慧谷化学有限公司 | Method for manufacturing lithographic printing plate base |
| CN101636694B (en) * | 2007-03-23 | 2012-03-07 | 三菱制纸株式会社 | Photosensitive lithographic printing plate material developable with water |
| CN101970585B (en) * | 2008-01-15 | 2014-02-19 | 惠普开发有限公司 | High performance porous ink-jet media with superior image quality |
| WO2015062404A1 (en) * | 2013-11-04 | 2015-05-07 | 北京中科纳新印刷技术有限公司 | Photosensitive grain-free printing plate |
| CN107073924A (en) * | 2014-11-06 | 2017-08-18 | 爱克发印艺公司 | Ink-jet CTP method for preparing one group of planographic printing plate |
-
2005
- 2005-05-16 CN CN 200510113287 patent/CN1864996A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101636694B (en) * | 2007-03-23 | 2012-03-07 | 三菱制纸株式会社 | Photosensitive lithographic printing plate material developable with water |
| CN101348048B (en) * | 2007-07-18 | 2010-05-26 | 广州慧谷化学有限公司 | Method for manufacturing lithographic printing plate base |
| CN101970585B (en) * | 2008-01-15 | 2014-02-19 | 惠普开发有限公司 | High performance porous ink-jet media with superior image quality |
| WO2015062404A1 (en) * | 2013-11-04 | 2015-05-07 | 北京中科纳新印刷技术有限公司 | Photosensitive grain-free printing plate |
| CN107073924A (en) * | 2014-11-06 | 2017-08-18 | 爱克发印艺公司 | Ink-jet CTP method for preparing one group of planographic printing plate |
| CN107073924B (en) * | 2014-11-06 | 2019-03-29 | 爱克发有限公司 | It is used to prepare the ink-jet CTP method of one group of planographic printing plate |
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