CN101734034B - High sensitivity positive thermosensitive CTP plate and preparation method thereof - Google Patents
High sensitivity positive thermosensitive CTP plate and preparation method thereof Download PDFInfo
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- CN101734034B CN101734034B CN200910242466A CN200910242466A CN101734034B CN 101734034 B CN101734034 B CN 101734034B CN 200910242466 A CN200910242466 A CN 200910242466A CN 200910242466 A CN200910242466 A CN 200910242466A CN 101734034 B CN101734034 B CN 101734034B
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Abstract
The invention discloses a high sensitivity positive thermosensitive CTP plate adopting active etherate in condensation resin of pyrogallol and acetone and a preparation method thereof, belonging to the technical field of graphic arts. The plate is composed of a base and an imaging layer. The base is obtained after carrying out cleaning, neutralizing, electrolyzing, oxidizing and hole sealing on the aluminium strips. The imaging layer is an imaging film which is prepared by the steps of dissolving 70-90 parts of film-forming resins, 2-10 parts of inhibitational resins, 2-5 parts of infrared dyes, 2-5 parts of color background dyes, 2-5 parts of photoacid generator and 2-5 parts of additives by weight into 800-900 parts of organic solvent by weight to form coating liquid, coating the coating liquid on the base and drying the coating liquid at 90-140 DEG C for 5-10min. The imaging film is 1.5-1.9g/m2 in thickness. The plate prepared in the invention has the characteristics of high sensitivity, good mesh point restoration, high resolution, high rate of printing resistance, low cost, high operation tolerance, wide application and the like.
Description
Technical field
The invention belongs to the plate making technical field, positive-printing heat-sensitive CTP plate material of particularly a kind of high sensitivity condensation resin of pyrogallol acetone resin active etherate and preparation method thereof.
Background technology
CTP (Computer to Plate) technology is the direct plate-making technology of a kind of digitlization that occurs nineteen nineties, is by computer graph text information to be copied to the technology on the plate through laser platemaker.This technical equipment is made up of preceding system of seal and laser platemaker, is referred to as the CTP system, i.e. the CTP system.This system does not need operations such as laser photocomposing machine output film, layout, copy and printing down.The CTP technology is introduced China and has been had significant progress over several years, turns to maturation gradually from popularizing now.Say that from the angle of technology CTP comprises photosensitive CTP and thermosensitive CTP, wherein the fastest with developing into of thermosensitive CTP, this is that high-quality by good characteristic of himself and product determines.The heat-sensitive CTP plate biggest advantage is can brightroom operation, and resolving power is high, environmental protection, the site that can under 300 line/inches, reproduce 1%-99%; Image taking speed is fast, can satisfy the high request of commercial printing to print quality.In a word, from the various factors integrated surveys such as superpower laser of plate-making speed, resolving power and use, the temperature-sensitive plate more adapts to the needs of high-quality commercial printing.
The operation principle of CTP system is: the image information that edits on the computer through the laser platemaker outgoing laser beam, is focused on directly scanning forme surface, back, on forme, form the latent image of image.After developing, the image information on the computer screen just is produced on the forme, and directly printing promptly is available on the machine.Because the use of this new technology for printing enterprise has saved a large amount of costs, has improved operating efficiency and print quality.Its appearance is the revolution of plate making industry.In China, use the printing enterprise of CTP technology to be merely 7-8%, well below developed country.This is because the CTP plate is a kind of product of high technology content, costs an arm and a leg, and has influenced it and has promoted on a large scale at home and use.Therefore the CTP plate of developing function admirable becomes the focus that the printing plate manufacturing industry is paid close attention to.
Summary of the invention
In order to solve the manufacturing predicament of present printing plate, my company develops a kind of positive-printing heat-sensitive CTP plate material of high sensitivity condensation resin of pyrogallol acetone resin active etherate of suitable national conditions.This plate is made up of version base and imaging layer; Version base is cleaned, is obtained after the neutralization, electrolysis, oxidation, sealing of hole by the aluminium plate band; It is 1.5-1.9g/m at the thickness that the version primary surface forms that imaging layer is the imaging coating fluid
2The imaging film.
The positive-printing heat-sensitive CTP plate material of a kind of high sensitivity condensation resin of pyrogallol acetone resin active etherate provided by the invention, its concrete preparation method is following:
A. the preparation of version base: under 60-70 ℃ of condition, the aluminium plate band is cleaned 40-100 second, use sulfuric acid or hydrochloric acid to be neutralized to PH and be 5-6, wash with deionized water again with the 4-8% sodium hydroxide solution; Then the space of a whole page is carried out electrochemical treatments, promptly under the alternating current effect, form the electrolysis loop with graphite electrode, obtaining surface roughness Ra is the porous surface of 0.40-0.65; The space of a whole page after the alligatoring is washed laggard capable oxidation processes through 4-8% sodium hydroxide solution cleaning ash disposal, deionization again, generates the hydrophilic layer of alundum (Al; The washing back is carried out sealing of hole with hole sealing agent and is handled 10-18 second under 20-60 ℃, washing, oven dry obtain being used for the version base that positive-printing heat-sensitive CTP plate material is produced;
B. the coating fluid that will form images is applied on edition base through roller or squash type, and it is 1.5-1.9g/m that 90-140 ℃ of oven dry formed thickness in 5-10 minute
2The imaging film, promptly obtain the high sensitivity positive-printing heat-sensitive CTP plate material.
Described aluminium plate band is that model is 1050 fine aluminium.
The hole sealing agent that described sealing of hole adopts is a 1-5% polyethylene phosphate aqueous solution, 1-5%NaF/NaH
2PO
4The aqueous solution or 1-5%K
2SrF
6The aqueous solution.
Described imaging coating fluid is dissolved coloring background dye, the 2-5 weight portion of IR dyes, the 2-5 weight portion of resin, 2-5 weight portion by the resistance of the film-forming resin of 70-90 weight portion, 2-10 weight portion the additive of acid agent and 2-5 weight portion dissolves in the organic solvent of 800-900 weight portion and forms.
It is condensation resin of pyrogallol acetone resin active etherate that resin is dissolved in described resistance.
Described film-forming resin is a linear phenol-aldehyde resin, comprises in metacresol-paracresol-formaldehyde resin, metacresol-tert-butyl phenol-phenol-formaldehyde resin, metacresol-urea formaldehyde, orthoresol-formaldehyde resin, phenol-metacresol-formaldehyde resin, phenol one metacresol-paracresol-formaldehyde resin, metacresol-paracresol-formaldehyde resin, phenol-orthoresol one formaldehyde resin, phenol-paracresol-formaldehyde resin or the phenol-tert-butyl group resinox one or more.
Described IR dyes is that benzindole is cyanine dyes, step cyanine dye or λ in imaging system
MvThe infrared absorbing dye of=810-825nm.
Described coloring background dye is that the background dye or the traditional PS version of thermal CTP plate material used dyestuff, comprises in alkaline bright blue, Victoria's ethereal blue, indigo, crystal violet, crystal violet, malachite green or the solvent blue one or more.Add complementary dyestuff in the coloring background dye, comprise in eosin, dimethyl yellow, sudan black, methyl orange or the fluorescein one or more, addition is the 1-3% of coloring background dye.
Described acid agent is: trisbromomethyl phenyl sulfone or 1-be to methoxy-naphthyl-3, the two trichloromethyl triazines of 5-.
Described additive is: luminol, different luminol, (E)-6-(2,3,4-trihydroxy benzene methylene amine)-2; 3-dihydro phthalazines-1,4-diketone, (E)-5-(2,3; 4-trihydroxy benzene methylene amine)-2,3-dihydro phthalazines-1,4-diketone, barbiturates, 1; 3-dimethyl barbituric acid, 5-methylol barbiturates, 5-methylbarbituric acid, 5,5-diethyl barbituric acid or 2-thiobarbituricacid.
Described solvent uses for the CTP version or the traditional PS version is used solvent, comprises in ethylene glycol monoethyl ether, dihydroxypropane single-ether, MEK, butyl acetate, dioxane or the oxolane one or more.
Described imaging coating fluid process for preparation is: IR dyes, coloring background dye are dissolved in the solvent; After treating thoroughly dissolving; Add film-forming resin, resistance molten resin, acid agent and additive again; Filter core with 8-12 μ m, 4-6 μ m and 0.2-1 μ m aperture carries out three-stage filtration then, makes the imaging coating fluid.
The positive-printing heat-sensitive CTP plate material of the high sensitivity condensation resin of pyrogallol acetone resin active etherate that the present invention makes has that sensitivity height, site reduce, resolution ratio is high, press resistance rate is high, cost is low,, characteristics such as the operation tolerance is big, of many uses.
Below in conjunction with embodiment, the present invention is done further description, rather than limit scope of the present invention.
The specific embodiment
Embodiment 1:
A. the preparation of version base: under 60 ℃ of conditions, using 5% sodium hydroxide solution is that 1050 fine aluminium cleaned 40 seconds with model, and using sulfuric acid to be neutralized to PH is 5, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly under the alternating current effect, form the electrolysis loop with graphite electrode, the acquisition surface roughness Ra is 0.50 porous surface; The space of a whole page after the alligatoring is washed laggard capable oxidation processes through 4% sodium hydroxide solution cleaning ash disposal, deionization again, generates the hydrophilic layer of alundum (Al; Washing back is carried out sealing of hole with the polyethylene phosphate aqueous solution of concentration 1% as hole sealing agent down at 40 ℃ and was handled 10 seconds, washing, oven dry, and it is basic to obtain being used for the version that positive-printing heat-sensitive CTP plate material produces;
B. the preparation of coating fluid forms images: peak forest chemical plant, Beijing infrared absorbing dye 2g, alkaline bright blue 2.5g are dissolved in the mixed solvent of 300g MEK and 550g ethylene glycol monoethyl ether; After treating thoroughly dissolving, add the BX-20 phenolic resins 81g that the RuiShiDa Chemical Engineering Co., Ltd., Benxi City produces again, condensation resin of pyrogallol acetone resin active etherate 5.5g; Acid agent is that 1-is to methoxy-naphthyl-3; The two trichloromethyl triazine 2.0g of 5-, luminol 3.5g; Filter core with 10 μ m, 5 μ m and 0.5 μ m aperture after treating thoroughly to dissolve carries out three-stage filtration, makes the imaging coating fluid;
C. the imaging coating fluid with step B preparation is applied on the version base of steps A preparation through a roller, and it is 1.6g/m that 90 ℃ of oven dry formed thickness in 5 minutes
2The imaging film, promptly obtain high sensitivity positive-printing heat-sensitive CTP plate material CTP-P1.
Embodiment 2:
A. the preparation of version base: under 65 ℃ of conditions, using 5% sodium hydroxide solution is that 1050 fine aluminium cleaned 50 seconds with model, and using hydrochloric acid to be neutralized to PH is 5.5, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly under the alternating current effect, form the electrolysis loop with graphite electrode, the acquisition surface roughness Ra is 0.40 porous surface; The space of a whole page after the alligatoring is washed laggard capable oxidation processes through 4% sodium hydroxide solution cleaning ash disposal, deionization again, generates the hydrophilic layer of alundum (Al; Washing back is carried out sealing of hole with the polyethylene phosphate aqueous solution of concentration 2% as hole sealing agent down at 60 ℃ and was handled 12 seconds, washing, oven dry, and it is basic to obtain being used for the version that positive-printing heat-sensitive CTP plate material produces;
B. the preparation of coating fluid forms images: will go on foot cyanine dye 3g, alkaline bright blue 0.3g and crystal violet 0.2g and be dissolved in the 800g dioxane, treat thoroughly dissolving after, add sky, economic and technological development zone, Weihai, Shandong again and become the BTB-225 of chemical company phenolic resins 65g; BTB-15 phenolic resins 20g, condensation resin of pyrogallol acetone resin active etherate 5.0g, acid agent are trisbromomethyl phenyl sulfone 3.0g; (E)-6-(2,3,4-trihydroxy benzene methylene amine)-2; 3-dihydro phthalazines-1; 4-diketone 4.5g, the filter core with 10 μ m, 5 μ m and 0.6 μ m aperture after treating thoroughly to dissolve carries out three-stage filtration, makes the imaging coating fluid;
C. the imaging coating fluid with step B preparation is applied on the version base of steps A preparation through a roller, and it is 1.6g/m that 110 ℃ of oven dry formed thickness in 6 minutes
2The imaging film, promptly obtain high sensitivity positive-printing heat-sensitive CTP plate material CTP-P2.
Embodiment 3:
A. the preparation of version base: under 70 ℃ of conditions, using 4% sodium hydroxide solution is that 1050 fine aluminium cleaned 60 seconds with model, and using sulfuric acid to be neutralized to PH is 6, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly under the alternating current effect, form the electrolysis loop with graphite electrode, the acquisition surface roughness Ra is 0.50 porous surface; The space of a whole page after the alligatoring is washed laggard capable oxidation processes through 5% sodium hydroxide solution cleaning ash disposal, deionization again, generates the hydrophilic layer of alundum (Al; Washing back is carried out sealing of hole with the polyethylene phosphate aqueous solution of concentration 3% as hole sealing agent down at 55 ℃ and was handled 14 seconds, washing, oven dry, and it is basic to obtain being used for the version that positive-printing heat-sensitive CTP plate material produces;
B. the preparation of coating fluid forms images: with benzindole is that cyanine dyes 4g, alkaline bright blue 2g are dissolved in the 850g oxolane; After treating thoroughly dissolving, add sky, economic and technological development zone, Weihai, Shandong again and become the BTB-26 of chemical company phenolic resins 83g, condensation resin of pyrogallol acetone resin active etherate 8.0g; Acid agent is that 1-is to methoxy-naphthyl-3; The two trichloromethyl triazine 4.0g of 5-, 1,3-dimethyl barbituric acid 4.5g; Filter core with 10 μ m, 5 μ m and 0.2 μ m aperture after treating thoroughly to dissolve carries out three-stage filtration, makes the imaging coating fluid;
C. the imaging coating fluid with step B preparation is applied on the version base of steps A preparation through a roller, and it is 1.8g/m that 130 ℃ of oven dry formed thickness in 7 minutes
2The imaging film, promptly obtain high sensitivity positive-printing heat-sensitive CTP plate material CTP-P3.
Embodiment 4:
A. the preparation of version base: under 65 ℃ of conditions, using 4% sodium hydroxide solution is that 1050 fine aluminium cleaned 70 seconds with model, and using hydrochloric acid to be neutralized to PH is 5, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly under the alternating current effect, form the electrolysis loop with graphite electrode, the acquisition surface roughness Ra is 0.60 porous surface; The space of a whole page after the alligatoring is washed laggard capable oxidation processes through 5% sodium hydroxide solution cleaning ash disposal, deionization again, generates the hydrophilic layer of alundum (Al; Washing back is carried out sealing of hole with the polyethylene phosphate aqueous solution of concentration 4% as hole sealing agent down at 45 ℃ and was handled 16 seconds, washing, oven dry, and it is basic to obtain being used for the version that positive-printing heat-sensitive CTP plate material produces;
B. the preparation of coating fluid forms images: peak forest chemical plant, Beijing infrared absorbing dye 5g, crystal violet 3g are dissolved in the 900g MEK; After treating thoroughly dissolving, add from U.S.'s import 140 resin 85g condensation resin of pyrogallol acetone resin active etherate 2.5g again; Acid agent is trisbromomethyl phenyl sulfone 5.0g; 2-thiobarbituricacid 2.5g, the filter core with 10 μ m, 5 μ m and 0.5 μ m aperture after treating thoroughly to dissolve carries out three-stage filtration, makes the imaging coating fluid;
C. the imaging coating fluid with step B preparation is applied to through squash type on the version base of steps A preparation, and it is 1.8g/m that 100 ℃ of oven dry formed thickness in 8 minutes
2The imaging film, promptly obtain high sensitivity positive-printing heat-sensitive CTP plate material CTP-P4.
Embodiment 5:
A. the preparation of version base: under 60 ℃ of conditions, using 6% sodium hydroxide solution is that 1050 fine aluminium cleaned 80 seconds with model, and using sulfuric acid to be neutralized to PH is 5, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly under the alternating current effect, form the electrolysis loop with graphite electrode, the acquisition surface roughness Ra is 0.65 porous surface; The space of a whole page after the alligatoring is washed laggard capable oxidation processes through 5% sodium hydroxide solution cleaning ash disposal, deionization again, generates the hydrophilic layer of alundum (Al; Washing back is carried out sealing of hole with the polyethylene phosphate aqueous solution of concentration 5% as hole sealing agent down at 35 ℃ and was handled 18 seconds, washing, oven dry, and it is basic to obtain being used for the version that positive-printing heat-sensitive CTP plate material produces;
B. the preparation of coating fluid forms images: peak forest chemical plant, Beijing infrared absorbing dye 4.5g, Victoria's ethereal blue 3g, eosin 0.05g are dissolved in the 860g dihydroxypropane single-ether, treat thoroughly dissolving after, add RuiShiDa Chemical Engineering Co., Ltd., Benxi City BX-20 phenolic resins 45g again; BX-20 phenolic resins 30g, condensation resin of pyrogallol acetone resin active etherate 6.5g, acid agent are that 1-is to methoxy-naphthyl-3; The two trichloromethyl triazine 3.5g of 5-, (E)-5-(2,3; 4-trihydroxy benzene methylene amine)-2,3-dihydro phthalazines-1,4-diketone 3.0g; Filter core with 10 μ m, 4 μ m and 0.5 μ m aperture after treating thoroughly to dissolve carries out three-stage filtration, makes the imaging coating fluid;
C. the imaging coating fluid with step B preparation is applied to through squash type on the version base of steps A preparation, and it is 1.7g/m that 120 ℃ of oven dry formed thickness in 9 minutes
2The imaging film, promptly obtain high sensitivity positive-printing heat-sensitive CTP plate material CTP-P5.
Embodiment 6:
A. the preparation of version base: under 65 ℃ of conditions, using 6% sodium hydroxide solution is that 1050 fine aluminium cleaned 90 seconds with model, and using sulfuric acid to be neutralized to PH is 5, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly under the alternating current effect, form the electrolysis loop with graphite electrode, the acquisition surface roughness Ra is 0.65 porous surface; The space of a whole page after the alligatoring is washed laggard capable oxidation processes through 6% sodium hydroxide solution cleaning ash disposal, deionization again, generates the hydrophilic layer of alundum (Al; The washing back is used concentration 1%NaF/NaH down at 25 ℃
2PO
4The aqueous solution carries out sealing of hole as hole sealing agent to be handled 11 seconds, and washing, oven dry obtain being used for the version base that positive-printing heat-sensitive CTP plate material is produced;
B. the preparation of coating fluid forms images: peak forest chemical plant, Beijing infrared absorbing dye 3g, alkaline bright blue 4g are dissolved in 480g MEK, the 400g ethylene glycol monoethyl ether mixed solvent; After treating thoroughly dissolving, add sky, economic and technological development zone, Weihai, Shandong again and become the BTB-225 of chemical company phenolic resins 45g, BTB-15 phenolic resins 40g; Condensation resin of pyrogallol acetone resin active etherate 9.5g; Acid agent be 1-to methoxy-naphthyl-3, the two trichloromethyl triazine 2.5g of 5-, 5-methylbarbituric acid 2.0g; Filter core with 12 μ m, 5 μ m and 0.5 μ m aperture after treating thoroughly to dissolve carries out three-stage filtration, makes the imaging coating fluid;
C. the imaging coating fluid with step B preparation is applied on the version base of steps A preparation through a roller, and it is 1.8g/m that 90 ℃ of oven dry formed thickness in 6 minutes
2The imaging film, promptly obtain high sensitivity positive-printing heat-sensitive CTP plate material CTP-P6.
Embodiment 7:
A. the preparation of version base: under 65 ℃ of conditions, using 7% sodium hydroxide solution is that 1050 fine aluminium cleaned 100 seconds with model, and using sulfuric acid to be neutralized to PH is 5.5, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly under the alternating current effect, form the electrolysis loop with graphite electrode, the acquisition surface roughness Ra is 0.60 porous surface; The space of a whole page after the alligatoring is washed laggard capable oxidation processes through 6% sodium hydroxide solution cleaning ash disposal, deionization again, generates the hydrophilic layer of alundum (Al; The washing back is used concentration 2%NaF/NaH down at 60 ℃
2PO
4The aqueous solution carries out sealing of hole as hole sealing agent to be handled 13 seconds, and washing, oven dry obtain being used for the version base that positive-printing heat-sensitive CTP plate material is produced;
B. the preparation of coating fluid forms images: will go on foot cyanine dye 2.5g, Victoria's ethereal blue 4.5g is dissolved in the 880g dihydroxypropane single-ether; After treating thoroughly dissolving, add phenol-tert-butyl group resinox 70g again, condensation resin of pyrogallol acetone resin active etherate 8.5g; Acid agent is trisbromomethyl phenyl sulfone 3.5g; 5-methylbarbituric acid 4.0g, the filter core with 11 μ m, 5 μ m and 0.5 μ m aperture after treating thoroughly to dissolve carries out three-stage filtration, makes the imaging coating fluid;
C. the imaging coating fluid with step B preparation is applied on the version base of steps A preparation through a roller, and it is 1.7g/m that 120 ℃ of oven dry formed thickness in 7 minutes
2The imaging film, promptly obtain high sensitivity positive-printing heat-sensitive CTP plate material CTP-P7.
Embodiment 8:
A. the preparation of version base: under 65 ℃ of conditions, using 7% sodium hydroxide solution is that 1050 fine aluminium cleaned 95 seconds with model, and using hydrochloric acid to be neutralized to PH is 5.5, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly under the alternating current effect, form the electrolysis loop with graphite electrode, the acquisition surface roughness Ra is 0.60 porous surface; The space of a whole page after the alligatoring is washed laggard capable oxidation processes through 7% sodium hydroxide solution cleaning ash disposal, deionization again, generates the hydrophilic layer of alundum (Al; The washing back is used concentration 3%NaF/NaH down at 60 ℃
2PO
4The aqueous solution carries out sealing of hole as hole sealing agent to be handled 15 seconds, and washing, oven dry obtain being used for the version base that positive-printing heat-sensitive CTP plate material is produced;
B. the preparation of coating fluid forms images: with benzindole is that cyanine dyes 3.5g, indigo 5g are dissolved in the 900g ethylene glycol monoethyl ether; After treating thoroughly dissolving, add phenol-paracresol-formaldehyde resin 75g again, condensation resin of pyrogallol acetone resin active etherate 7.5g; Acid agent is trisbromomethyl phenyl sulfone 4.5g; Different luminol 5.0g, the filter core with 11 μ m, 6 μ m and 0.8 μ m aperture after treating thoroughly to dissolve carries out three-stage filtration, makes the imaging coating fluid;
C. the imaging coating fluid with step B preparation is applied on the version base of steps A preparation through a roller, and it is 1.7g/m that 130 ℃ of oven dry formed thickness in 8 minutes
2Sensible heat light film, promptly obtain high sensitivity positive-printing heat-sensitive CTP plate material CTP-P8.
Embodiment 9:
A. the preparation of version base: under 65 ℃ of conditions, using 8% sodium hydroxide solution is that 1050 fine aluminium cleaned 85 seconds with model, and using hydrochloric acid to be neutralized to PH is 5.5, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly under the alternating current effect, form the electrolysis loop with graphite electrode, the acquisition surface roughness Ra is 0.55 porous surface; The space of a whole page after the alligatoring is washed laggard capable oxidation processes through 7% sodium hydroxide solution cleaning ash disposal, deionization again, generates the hydrophilic layer of alundum (Al; The washing back is used concentration 4%NaF/NaH down at 50 ℃
2PO
4The aqueous solution carries out sealing of hole as hole sealing agent to be handled 17 seconds, and washing, oven dry obtain being used for the version base that positive-printing heat-sensitive CTP plate material is produced;
B. the preparation of coating fluid forms images: peak forest chemical plant, Beijing infrared absorbing dye 4.5g, crystal violet 3.5g are dissolved in the 880g MEK, treat thoroughly dissolving after, add phenol-orthoresol one formaldehyde resin 80g again; Condensation resin of pyrogallol acetone resin active etherate 3.5g; Acid agent be 1-to methoxy-naphthyl-3, the two trichloromethyl triazine 3.5g of 5-, 2-thiobarbituricacid 4.5g; Filter core with 8 μ m, 5 μ m and 0.4 μ m aperture after treating thoroughly to dissolve carries out three-stage filtration, makes the imaging coating fluid;
C. the imaging coating fluid with step B preparation is applied to through squash type on the version base of steps A preparation, and it is 1.6g/m that 110 ℃ of oven dry formed thickness in 9 minutes
2The imaging film, promptly obtain high sensitivity positive-printing heat-sensitive CTP plate material CTP-P9.
Embodiment 10:
A. the preparation of version base: under 65 ℃ of conditions, using 8% sodium hydroxide solution is that 1050 fine aluminium cleaned 75 seconds with model, and using hydrochloric acid to be neutralized to PH is 5.5, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly under the alternating current effect, form the electrolysis loop with graphite electrode, the acquisition surface roughness Ra is 0.55 porous surface; The space of a whole page after the alligatoring is washed laggard capable oxidation processes through 8% sodium hydroxide solution cleaning ash disposal, deionization again, generates the hydrophilic layer of alundum (Al; The washing back is used concentration 5%NaF/NaH down at 50 ℃
2PO
4The aqueous solution carries out sealing of hole as hole sealing agent to be handled 15 seconds, and washing, oven dry obtain being used for the version base that positive-printing heat-sensitive CTP plate material is produced;
B. the preparation of coating fluid forms images: peak forest chemical plant, Beijing infrared absorbing dye 3g, solvent blue 3g are dissolved in the 860g butyl acetate, treat thoroughly dissolving after, add metacresol-paracresol-formaldehyde resin 85g again; Condensation resin of pyrogallol acetone resin active etherate 4.5g; Acid agent is trisbromomethyl phenyl sulfone 3.0g, 5, and 5-diethyl barbituric acid 4.0g; Filter core with 9 μ m, 4 μ m and 0.6 μ m aperture after treating thoroughly to dissolve carries out three-stage filtration, makes the imaging coating fluid;
C. the imaging coating fluid with step B preparation is applied to through squash type on the version base of steps A preparation, and it is 1.6g/m that 130 ℃ of oven dry formed thickness in 10 minutes
2The imaging film, promptly obtain high sensitivity positive-printing heat-sensitive CTP plate material CTP-P10.
Embodiment 11:
A. the preparation of version base: under 70 ℃ of conditions, using 4% sodium hydroxide solution is that 1050 fine aluminium cleaned 65 seconds with model, and using hydrochloric acid to be neutralized to PH is 6, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly under the alternating current effect, form the electrolysis loop with graphite electrode, the acquisition surface roughness Ra is 0.50 porous surface; The space of a whole page after the alligatoring is washed laggard capable oxidation processes through 8% sodium hydroxide solution cleaning ash disposal, deionization again, generates the hydrophilic layer of alundum (Al; The washing back is used concentration 1%K down at 40 ℃
2SrF
6The aqueous solution carries out sealing of hole as hole sealing agent to be handled 10 seconds, and washing, oven dry obtain being used for the version base that positive-printing heat-sensitive CTP plate material is produced;
B. the preparation of coating fluid forms images: will go on foot cyanine dye 2g, alkaline bright blue 2g, methyl orange 0.04g and be dissolved in the 830g oxolane; After treating thoroughly dissolving, add phenol one metacresol-paracresol-formaldehyde resin 90g again, condensation resin of pyrogallol acetone resin active etherate 2.0g; Acid agent is trisbromomethyl phenyl sulfone 2.0g; 5-methylbarbituric acid 3.5g, the filter core with 9 μ m, 4 μ m and 0.9 μ m aperture after treating thoroughly to dissolve carries out three-stage filtration, makes the imaging coating fluid;
C. the imaging coating fluid with step B preparation is applied on the version base of steps A preparation through a roller, and it is 1.6g/m that 95 ℃ of oven dry formed thickness in 5 minutes
2The imaging film, promptly obtain high sensitivity positive-printing heat-sensitive CTP plate material CTP-P11.
Embodiment 12:
A. the preparation of version base: under 70 ℃ of conditions, using 5% sodium hydroxide solution is that 1050 fine aluminium cleaned 55 seconds with model, and using sulfuric acid to be neutralized to PH is 6, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly under the alternating current effect, form the electrolysis loop with graphite electrode, the acquisition surface roughness Ra is 0.50 porous surface; The space of a whole page after the alligatoring is washed laggard capable oxidation processes through 5% sodium hydroxide solution cleaning ash disposal, deionization again, generates the hydrophilic layer of alundum (Al; The washing back is used concentration 2%K down at 40 ℃
2SrF
6The aqueous solution carries out sealing of hole as hole sealing agent to be handled 12 seconds, and washing, oven dry obtain being used for the version base that positive-printing heat-sensitive CTP plate material is produced;
B. the preparation of coating fluid forms images: peak forest chemical plant, Beijing infrared absorbing dye 3g, malachite green 3g are dissolved in the 810g dioxane, treat thoroughly dissolving after, add metacresol-paracresol-formaldehyde resin 80g again; Condensation resin of pyrogallol acetone resin active etherate 4.0g; Acid agent be 1-to methoxy-naphthyl-3, the two trichloromethyl triazine 3.0g of 5-, 5-methylol barbiturates 2.0g; Filter core with 10 μ m, 5 μ m and 0.4 μ m aperture after treating thoroughly to dissolve carries out three-stage filtration, makes the imaging coating fluid;
C. the imaging coating fluid with step B preparation is applied to through squash type on the version base of steps A preparation, and it is 1.7g/m that 105 ℃ of oven dry formed thickness in 6 minutes
2The imaging film, promptly obtain high sensitivity positive-printing heat-sensitive CTP plate material CTP-P12.
Embodiment 13:
A. the preparation of version base: under 70 ℃ of conditions, using 6% sodium hydroxide solution is that 1050 fine aluminium cleaned 45 seconds with model, and using sulfuric acid to be neutralized to PH is 6, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly under the alternating current effect, form the electrolysis loop with graphite electrode, the acquisition surface roughness Ra is 0.45 porous surface; The space of a whole page after the alligatoring is washed laggard capable oxidation processes through 5% sodium hydroxide solution cleaning ash disposal, deionization again, generates the hydrophilic layer of alundum (Al; The washing back is used concentration 3%K down at 30 ℃
2SrF
6The aqueous solution carries out sealing of hole as hole sealing agent to be handled 14 seconds, and washing, oven dry obtain being used for the version base that positive-printing heat-sensitive CTP plate material is produced;
B. the preparation of coating fluid forms images: peak forest chemical plant, Beijing infrared absorbing dye 4g, crystal violet 3.5g are dissolved in the 800g butyl acetate, treat thoroughly dissolving after, add metacresol-tert-butyl phenol-phenol-formaldehyde resin 90g again; Condensation resin of pyrogallol acetone resin active etherate 6.0g; Acid agent is trisbromomethyl phenyl sulfone 4.0g, 1, and 3-dimethyl barbituric acid 3.0g; Filter core with 10 μ m, 6 μ m and 0.3 μ m aperture after treating thoroughly to dissolve carries out three-stage filtration, makes the imaging coating fluid;
C. the imaging coating fluid with step B preparation is applied on the version base of steps A preparation through a roller, and it is 1.7g/m that 115 ℃ of oven dry formed thickness in 7 minutes
2The imaging film, promptly obtain high sensitivity positive-printing heat-sensitive CTP plate material CTP-P13.
Embodiment 14:
A. the preparation of version base: under 60 ℃ of conditions, using 7% sodium hydroxide solution is that 1050 fine aluminium cleaned 60 seconds with model, and using sulfuric acid to be neutralized to PH is 6, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly under the alternating current effect, form the electrolysis loop with graphite electrode, the acquisition surface roughness Ra is 0.45 porous surface; The space of a whole page after the alligatoring is washed laggard capable oxidation processes through 6% sodium hydroxide solution cleaning ash disposal, deionization again, generates the hydrophilic layer of alundum (Al; The washing back is used concentration 4%K down at 30 ℃
2SrF
6The aqueous solution carries out sealing of hole as hole sealing agent to be handled 16 seconds, and washing, oven dry obtain being used for the version base that positive-printing heat-sensitive CTP plate material is produced;
B. the preparation of coating fluid forms images: peak forest chemical plant, Beijing infrared absorbing dye 5g, indigo 4g are dissolved in the 840g MEK; After treating thoroughly dissolving, add metacresol-urea formaldehyde, orthoresol-formaldehyde resin 70g again, condensation resin of pyrogallol acetone resin active etherate 8.0g; Acid agent is trisbromomethyl phenyl sulfone 5.0g; Barbiturates 4.5g, the filter core with 11 μ m, 5 μ m and 0.7 μ m aperture after treating thoroughly to dissolve carries out three-stage filtration, makes the imaging coating fluid;
C. the imaging coating fluid with step B preparation is applied on the version base of steps A preparation through a roller, and it is 1.7g/m that 125 ℃ of oven dry formed thickness in 8 minutes
2The imaging film, promptly obtain high sensitivity positive-printing heat-sensitive CTP plate material CTP-P14.
Embodiment 15:
A. the preparation of version base: under 60 ℃ of conditions, using 8% sodium hydroxide solution is that 1050 fine aluminium cleaned 80 seconds with model, and using hydrochloric acid to be neutralized to PH is 6, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly under the alternating current effect, form the electrolysis loop with graphite electrode, the acquisition surface roughness Ra is 0.40 porous surface; The space of a whole page after the alligatoring is washed laggard capable oxidation processes through 6% sodium hydroxide solution cleaning ash disposal, deionization again, generates the hydrophilic layer of alundum (Al; The washing back is used concentration 5%K down at 20 ℃
2SrF
6The aqueous solution carries out sealing of hole as hole sealing agent to be handled 18 seconds, and washing, oven dry obtain being used for the version base that positive-printing heat-sensitive CTP plate material is produced;
B. the preparation of coating fluid forms images: peak forest chemical plant, Beijing infrared absorbing dye 4.5g, alkaline bright blue 3.5g are dissolved in the 850g dihydroxypropane single-ether, treat thoroughly dissolving after, add phenol-metacresol-formaldehyde resin 75g again; Condensation resin of pyrogallol acetone resin active etherate 9.0g; Acid agent be 1-to methoxy-naphthyl-3, the two trichloromethyl triazine 4.5g of 5-, luminol 5.0g; Filter core with 12 μ m, 6 μ m and 0.8 μ m aperture after treating thoroughly to dissolve carries out three-stage filtration, makes the imaging coating fluid;
C. the imaging coating fluid with step B preparation is applied to through squash type on the version base of steps A preparation, and it is 1.5g/m that 135 ℃ of oven dry formed thickness in 9 minutes
2The imaging film, promptly obtain high sensitivity positive-printing heat-sensitive CTP plate material CTP-P15.
Embodiment 16:
A. the preparation of version base: under 60 ℃ of conditions, using 6% sodium hydroxide solution is that 1050 fine aluminium cleaned 100 seconds with model, and using sulfuric acid to be neutralized to PH is 5, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly under the alternating current effect, form the electrolysis loop with graphite electrode, the acquisition surface roughness Ra is 0.40 porous surface; The space of a whole page after the alligatoring is washed laggard capable oxidation processes through 6% sodium hydroxide solution cleaning ash disposal, deionization again, generates the hydrophilic layer of alundum (Al; The washing back is used concentration 5%K down at 20 ℃
2SrF
6The aqueous solution carries out sealing of hole as hole sealing agent to be handled 16 seconds, and washing, oven dry obtain being used for the version base that positive-printing heat-sensitive CTP plate material is produced;
B. the preparation of coating fluid forms images: with benzindole is that cyanine dyes 3.5g, alkaline bright blue 2.7g and crystal violet 0.3g are dissolved in the 820g ethylene glycol monoethyl ether; After treating thoroughly dissolving, add phenol one metacresol-paracresol-formaldehyde resin 85g again, condensation resin of pyrogallol acetone resin active etherate 9.5g; Acid agent is trisbromomethyl phenyl sulfone 3.5g; Different luminol 3.5g, the filter core with 10 μ m, 5 μ m and 0.5 μ m aperture after treating thoroughly to dissolve carries out three-stage filtration, makes the imaging coating fluid;
C. the imaging coating fluid with step B preparation is applied to through squash type on the version base of steps A preparation, and it is 1.9g/m that 120 ℃ of oven dry formed thickness in 10 minutes
2The imaging film, promptly obtain high sensitivity positive-printing heat-sensitive CTP plate material CTP-P16.
The prepared high sensitivity positive-printing heat-sensitive CTP plate material of embodiment 1-16 is carried out the mensuration of temperature-sensitive sensitivity, resolution ratio, dot reproduction property and press resistance rate, and the result is as shown in table 1.The thermosensitive CTP plate-making that the temperature-sensitive sensitometry adopts screen company to provide is measured; Resolving power determination adopts on the all-victorious 800 heat-sensitive plate-making machines and directly measures with designated software; Dot reproduction property is density reflectometer ICPlate 2 mensuration with X-rite.Developer solution is used positive thermosensitive CTP version developer solution for Taixing City Orient Industrial Company's commerce.
The evaluation and the comparing result of table 1 positive without preheating heat-sensitive CTP plate
| The plate sequence number | Coating thickness (g/m 2) | Dissolvent residual rate (%) | Temperature-sensitive sensitivity (mJ/cm 2) | Resolution ratio (dpi) | Dot reproduction property (%) | Press resistance rate (ten thousand seals) |
| CTP-1 | 1.60 | ≤3 | 120 | 250 | 1-99 | ＞5 |
| CTP-2 | 1.59 | ≤3 | 130 | 250 | 1-99 | ＞5 |
| CTP-3 | 1.61 | ≤3 | 110 | 250 | 1-99 | ＞5 |
| CTP-4 | 1.70 | ≤3 | 120 | 250 | 1-99 | ＞5 |
| CTP-5 | 1.72 | ≤3 | 120 | 250 | 1-99 | ＞5 |
| CTP-6 | 1.62 | ≤3 | 135 | 250 | 1-99 | ＞5 |
| CTP-7 | 1.70 | ≤3 | 125 | 250 | 1-99 | ＞5 |
| CTP-8 | 1.72 | ≤3 | 115 | 250 | 1-99 | ＞5 |
| CTP-9 | 1.61 | ≤3 | 130 | 250 | 1-99 | ＞5 |
| CTP-10 | 1.60 | ≤3 | 125 | 250 | 1-99 | ＞5 |
| CTP-11 | 1.62 | ≤3 | 110 | 250 | 1-99 | ＞5 |
| CTP-12 | 1.71 | ≤3 | 130 | 250 | 1-99 | ＞5 |
| CTP-13 | 1.69 | ≤3 | 125 | 250 | 1-99 | ＞5 |
| CTP-14 | 1.70 | ≤3 | 135 | 250 | 1-99 | ＞5 |
| CTP-15 | 1.52 | ≤3 | 120 | 250 | 1-99 | ＞5 |
| CTP-16 | 1.70 | ≤3 | 130 | 250 | 1-99 | ＞5 |
Claims (5)
1. the positive-printing heat-sensitive CTP plate material of a condensation resin of pyrogallol acetone resin active etherate is characterized in that, it is made up of version base and imaging layer; Version base is cleaned, is obtained after the neutralization, electrolysis, oxidation, hole sealing agent sealing of hole by the aluminium plate band; It is 1.5-1.9g/m at the thickness that the version primary surface forms that imaging layer is the imaging coating fluid
2The imaging film;
Described imaging coating fluid is dissolved coloring background dye, the 2-5 weight portion of IR dyes, the 2-5 weight portion of resin, 2-5 weight portion by the resistance of the film-forming resin of 70-90 weight portion, 2-10 weight portion the additive of acid agent and 2-5 weight portion dissolves in the organic solvent of 800-900 weight portion and forms;
It is condensation resin of pyrogallol acetone resin active etherate that resin is dissolved in described resistance; Described acid agent is: trisbromomethyl phenyl sulfone or 1-be to methoxy-naphthyl-3, the two trichloromethyl triazines of 5-; Described additive is: luminol, different luminol, (E)-6-(2,3,4-trihydroxy benzene methylene amine)-2; 3-dihydro phthalazines-1,4-diketone, (E)-5-(2,3; 4-trihydroxy benzene methylene amine)-2,3-dihydro phthalazines-1,4-diketone, barbiturates, 1; 3-dimethyl barbituric acid, 5-methylol barbiturates, 5-methylbarbituric acid, 5,5-diethyl barbituric acid or 2-thiobarbituricacid.
2. the positive-printing heat-sensitive CTP plate material of a kind of condensation resin of pyrogallol acetone resin active etherate according to claim 1 is characterized in that, described aluminium plate band is that model is 1050 fine aluminium; Described hole sealing agent is a 1-5% polyethylene phosphate aqueous solution, 1-5%NaF and NaH
2PO
4The aqueous solution or 1-5%K
2SrF
6The aqueous solution.
3. the preparation method of the positive-printing heat-sensitive CTP plate material of a condensation resin of pyrogallol acetone resin active etherate is characterized in that, its concrete preparation process is following:
A. the preparation of version base: under 60-70 ℃ of condition, the aluminium plate band is cleaned 40-100 second, use sulfuric acid or hydrochloric acid to be neutralized to PH and be 5-6, wash with deionized water again with the 4-8% sodium hydroxide solution; Then the space of a whole page is carried out electrochemical treatments, promptly under the alternating current effect, form the electrolysis loop, obtain porous surface with graphite electrode; The space of a whole page after the alligatoring is washed laggard capable oxidation processes through 4-8% sodium hydroxide solution cleaning ash disposal, deionization again, generates the hydrophilic layer of alundum (Al; The washing back is carried out sealing of hole with hole sealing agent and is handled 10-18 second under 20-60 ℃, washing, oven dry obtain being used for the version base that positive-printing heat-sensitive CTP plate material is produced;
B. the coating fluid that will form images is applied on edition base through roller or squash type, and it is 1.5-1.9g/m that 90-140 ℃ of oven dry formed thickness in 5-10 minute
2The imaging film, promptly obtain positive-printing heat-sensitive CTP plate material;
Described imaging coating fluid is dissolved coloring background dye, the 2-5 weight portion of IR dyes, the 2-5 weight portion of resin, 2-5 weight portion by the resistance of the film-forming resin of 70-90 weight portion, 2-10 weight portion the additive of acid agent and 2-5 weight portion dissolves in the organic solvent of 800-900 weight portion and forms;
It is condensation resin of pyrogallol acetone resin active etherate that resin is dissolved in described resistance; Described acid agent is: trisbromomethyl phenyl sulfone or 1-be to methoxy-naphthyl-3, the two trichloromethyl triazines of 5-; Described additive is: luminol, different luminol, (E)-6-(2,3,4-trihydroxy benzene methylene amine)-2; 3-dihydro phthalazines-1,4-diketone, (E)-5-(2,3; 4-trihydroxy benzene methylene amine)-2,3-dihydro phthalazines-1,4-diketone, barbiturates, 1; 3-dimethyl barbituric acid, 5-methylol barbiturates, 5-methylbarbituric acid, 5,5-diethyl barbituric acid or 2-thiobarbituricacid.
4. the preparation method of the positive-printing heat-sensitive CTP plate material of a kind of condensation resin of pyrogallol acetone resin active etherate according to claim 3 is characterized in that, described aluminium plate band is that model is 1050 fine aluminium; Described hole sealing agent is a 1-5% polyethylene phosphate aqueous solution, 1-5%NaF and NaH
2PO
4The aqueous solution or 1-5%K
2SrF
6The aqueous solution.
5. according to the preparation method of the positive-printing heat-sensitive CTP plate material of claim 3 or 4 described a kind of condensation resin of pyrogallol acetone resin active etherates; It is characterized in that; Described imaging coating fluid process for preparation is: IR dyes, coloring background dye are dissolved in the solvent, after treating thoroughly to dissolve, add film-forming resin, resistance molten resin, acid agent and additive again; Filter core with 8-12 μ m, 4-6 μ m and 0.2-1 μ m aperture carries out three-stage filtration then, makes the imaging coating fluid.
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| CN102081306A (en) * | 2010-12-06 | 2011-06-01 | 北京师范大学 | Thermosensitive waterless offset plate containing diazophotographic resin and preparation method thereof |
| CN102096323A (en) * | 2011-01-24 | 2011-06-15 | 北京师范大学 | Positive light-sensitive waterless offset printing plate containing heavy-nitrogen resin and manufacturing method thereof |
| CN102173181A (en) * | 2011-01-24 | 2011-09-07 | 北京师范大学 | Negative image photosensitive dry offset plate containing diazo resin and preparation method thereof |
| CN103625145A (en) * | 2012-08-23 | 2014-03-12 | 温州市华彩印刷器材有限公司 | Treatment technology for thermosensitive positive CTP plate manufacturing substrate |
| CN103660665A (en) * | 2013-12-05 | 2014-03-26 | 泰州市东方印刷版材有限公司 | Hole sealing technology for printing plate making |
| CN104831329A (en) * | 2015-05-28 | 2015-08-12 | 西南交通大学 | Sealing treatment method for aluminum alloy anode oxide film |
| CN106957583A (en) * | 2017-02-16 | 2017-07-18 | 蚁术新材料科技（上海）有限公司 | A kind of preparation method of aluminum substrate sealing pores liquid and high hydrophilic aluminum substrate |
| CN110983404A (en) * | 2019-12-30 | 2020-04-10 | 江苏乐彩印刷材料有限公司 | Environment-friendly energy-saving CTP (computer to plate) lithographic printing material |
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