CN101734034A - High sensitivity positive thermosensitive CTP plate adopting active etherate in condensation resin of pyrogallol and acetone and preparation method thereof - Google Patents
High sensitivity positive thermosensitive CTP plate adopting active etherate in condensation resin of pyrogallol and acetone and preparation method thereof Download PDFInfo
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- CN101734034A CN101734034A CN200910242466A CN200910242466A CN101734034A CN 101734034 A CN101734034 A CN 101734034A CN 200910242466 A CN200910242466 A CN 200910242466A CN 200910242466 A CN200910242466 A CN 200910242466A CN 101734034 A CN101734034 A CN 101734034A
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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 technology on the plate by 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.From the angle of technology, CTP comprises photosensitive CTP and thermosensitive CTP, and is wherein the fastest with developing into of thermosensitive CTP, and this is that high-quality by good characteristic of himself and product is determined.The heat-sensitive CTP plate biggest advantage is can brightroom operation, resolving power height, environmental protection, the site that can reproduce 1%-99% under 300 line/inches; 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, the latent image of formation image on forme.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 only to be 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 as follows:
A. the preparation of version base: under 60-70 ℃ of condition, with the 4-8% sodium hydroxide solution aluminium plate band is cleaned 40-100 second, being neutralized to PH with sulfuric acid or hydrochloric acid is 5-6, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly form the electrolysis loop with graphite electrode under the alternating current effect, 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 imaging coating fluid is applied on edition base by roller or squash type, 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 in the organic solvent of 800-900 weight portion by the additive of the acid agent of the coloring background dye of the IR dyes of the molten resin of resistance of the film-forming resin of 70-90 weight portion, 2-10 weight portion, 2-5 weight portion, 2-5 weight portion, 2-5 weight portion and 2-5 weight portion and forms.
The molten resin of described resistance is a condensation resin of pyrogallol acetone resin active etherate.
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 the background dye or the traditional PS version dyestuff of thermal CTP plate material, 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 is used or traditional PS version solvent for the CTP version, 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 again, hinder molten resin, acid agent and additive, 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 height, press resistance rate height, cost are low,, characteristics such as the operation tolerance is big, of many uses.
Below in conjunction with embodiment, the invention will be further described, rather than limit the scope of the invention.
The specific embodiment
Embodiment 1:
A. the preparation of version base: under 60 ℃ of conditions, be 1050 fine aluminium cleaning 40 seconds with 5% sodium hydroxide solution with model, being neutralized to PH with sulfuric acid is 5, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly form the electrolysis loop with graphite electrode under the alternating current effect, 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 imaging coating fluid: 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 by 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, be 1050 fine aluminium cleaning 50 seconds with 5% sodium hydroxide solution with model, being neutralized to PH with hydrochloric acid is 5.5, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly form the electrolysis loop with graphite electrode under the alternating current effect, 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 imaging coating fluid: will go on foot cyanine dye 3g, alkaline bright blue 0.3g and crystal violet 0.2g are dissolved in the 800g dioxane, after treating thoroughly dissolving, 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 is trisbromomethyl phenyl sulfone 3.0g, (E)-6-(2,3,4-trihydroxy benzene methylene amine)-2,3-dihydro phthalazines-1,4-diketone 4.5g, treat that thoroughly dissolving is back with 10 μ m, 5 μ m, carry out three-stage filtration with the filter core in 0.6 μ m aperture, make the imaging coating fluid;
C. the imaging coating fluid with step B preparation is applied on the version base of steps A preparation by 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, be 1050 fine aluminium cleaning 60 seconds with 4% sodium hydroxide solution with model, being neutralized to PH with sulfuric acid is 6, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly form the electrolysis loop with graphite electrode under the alternating current effect, 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 imaging coating fluid: 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 by 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, be 1050 fine aluminium cleaning 70 seconds with 4% sodium hydroxide solution with model, being neutralized to PH with hydrochloric acid is 5, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly form the electrolysis loop with graphite electrode under the alternating current effect, 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 imaging coating fluid: peak forest chemical plant, Beijing infrared absorbing dye 5g, crystal violet 3g are dissolved in the 900g MEK, after treating thoroughly dissolving, add again from U.S.'s import 140 resin 85g, condensation resin of pyrogallol acetone resin active etherate 2.5g, 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 by 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, be 1050 fine aluminium cleaning 80 seconds with 6% sodium hydroxide solution with model, being neutralized to PH with sulfuric acid is 5, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly form the electrolysis loop with graphite electrode under the alternating current effect, 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 imaging coating fluid: with peak forest chemical plant, Beijing infrared absorbing dye 4.5g, Victoria's ethereal blue 3g, eosin 0.05g is dissolved in the 860g dihydroxypropane single-ether, after treating thoroughly dissolving, 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 is 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 treats that thoroughly dissolving is back with 10 μ m, 4 μ m, carry out three-stage filtration with the filter core in 0.5 μ m aperture, make the imaging coating fluid;
C. the imaging coating fluid with step B preparation is applied to by 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, be 1050 fine aluminium cleaning 90 seconds with 6% sodium hydroxide solution with model, being neutralized to PH with sulfuric acid is 5, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly form the electrolysis loop with graphite electrode under the alternating current effect, 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 imaging coating fluid: with peak forest chemical plant, Beijing infrared absorbing dye 3g, alkaline bright blue 4g is dissolved in the 480g MEK, in 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 is that 1-is to methoxy-naphthyl-3, the two trichloromethyl triazine 2.5g of 5-, 5-methylbarbituric acid 2.0g, treat that thoroughly dissolving is back with 12 μ m, 5 μ m, carry out three-stage filtration with the filter core in 0.5 μ m aperture, make the imaging coating fluid;
C. the imaging coating fluid with step B preparation is applied on the version base of steps A preparation by 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, be 1050 fine aluminium cleaning 100 seconds with 7% sodium hydroxide solution with model, being neutralized to PH with sulfuric acid is 5.5, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly form the electrolysis loop with graphite electrode under the alternating current effect, 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 imaging coating fluid: 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 by 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, be 1050 fine aluminium cleaning 95 seconds with 7% sodium hydroxide solution with model, being neutralized to PH with hydrochloric acid is 5.5, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly form the electrolysis loop with graphite electrode under the alternating current effect, 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 imaging coating fluid: 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 by 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, be 1050 fine aluminium cleaning 85 seconds with 8% sodium hydroxide solution with model, being neutralized to PH with hydrochloric acid is 5.5, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly form the electrolysis loop with graphite electrode under the alternating current effect, 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 imaging coating fluid: peak forest chemical plant, Beijing infrared absorbing dye 4.5g, crystal violet 3.5g are dissolved in the 880g MEK, after treating thoroughly dissolving, 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 by 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, be 1050 fine aluminium cleaning 75 seconds with 8% sodium hydroxide solution with model, being neutralized to PH with hydrochloric acid is 5.5, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly form the electrolysis loop with graphite electrode under the alternating current effect, 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 imaging coating fluid: peak forest chemical plant, Beijing infrared absorbing dye 3g, solvent blue 3g are dissolved in the 860g butyl acetate, after treating thoroughly dissolving, 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 by 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, be 1050 fine aluminium cleaning 65 seconds with 4% sodium hydroxide solution with model, being neutralized to PH with hydrochloric acid is 6, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly form the electrolysis loop with graphite electrode under the alternating current effect, 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 imaging coating fluid: will go on foot cyanine dye 2g, alkaline bright blue 2g, methyl orange 0.04g are 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 by 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, be 1050 fine aluminium cleaning 55 seconds with 5% sodium hydroxide solution with model, being neutralized to PH with sulfuric acid is 6, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly form the electrolysis loop with graphite electrode under the alternating current effect, 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 imaging coating fluid: peak forest chemical plant, Beijing infrared absorbing dye 3g, malachite green 3g are dissolved in the 810g dioxane, after treating thoroughly dissolving, 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 by 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, be 1050 fine aluminium cleaning 45 seconds with 6% sodium hydroxide solution with model, being neutralized to PH with sulfuric acid is 6, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly form the electrolysis loop with graphite electrode under the alternating current effect, 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 imaging coating fluid: peak forest chemical plant, Beijing infrared absorbing dye 4g, crystal violet 3.5g are dissolved in the 800g butyl acetate, after treating thoroughly dissolving, 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 by 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, be 1050 fine aluminium cleaning 60 seconds with 7% sodium hydroxide solution with model, being neutralized to PH with sulfuric acid is 6, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly form the electrolysis loop with graphite electrode under the alternating current effect, 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 imaging coating fluid: 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 by 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, be 1050 fine aluminium cleaning 80 seconds with 8% sodium hydroxide solution with model, being neutralized to PH with hydrochloric acid is 6, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly form the electrolysis loop with graphite electrode under the alternating current effect, 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 imaging coating fluid: peak forest chemical plant, Beijing infrared absorbing dye 4.5g, alkaline bright blue 3.5g are dissolved in the 850g dihydroxypropane single-ether, after treating thoroughly dissolving, 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 by 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, be 1050 fine aluminium cleaning 100 seconds with 6% sodium hydroxide solution with model, being neutralized to PH with sulfuric acid is 5, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly form the electrolysis loop with graphite electrode under the alternating current effect, 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 imaging coating fluid: 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 by 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 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 is density reflectometer ICPlate 2 mensuration with X-rite.Developer solution is Taixing City Orient Industrial Company's commerce positive thermosensitive CTP version developer solution.
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 (%) | 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 |
| The plate sequence number | Coating thickness (g/m 2) | Dissolvent residual rate (%) | Temperature-sensitive sensitivity (mJ/cm 2) | Resolution ratio (dpi) | Dot reproduction (%) | Press resistance rate (ten thousand seals) |
| ??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 (9)
1. the positive-printing heat-sensitive CTP plate material of a high sensitivity 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.
2. the preparation method of the positive-printing heat-sensitive CTP plate material of a high sensitivity condensation resin of pyrogallol acetone resin active etherate is characterized in that, its concrete preparation process is as follows:
A. the preparation of version base: under 60-70 ℃ of condition, with the 4-8% sodium hydroxide solution aluminium plate band is cleaned 40-100 second, being neutralized to PH with sulfuric acid or hydrochloric acid is 5-6, washes with deionized water again; Then the space of a whole page is carried out electrochemical treatments, promptly form the electrolysis loop with graphite electrode under the alternating current effect, 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 imaging coating fluid is applied on edition base by roller or squash type, 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.
3. the positive-printing heat-sensitive CTP plate material of a kind of high sensitivity 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/NaH
2PO
4The aqueous solution or 1-5%K
2SrF
6The aqueous solution.
4. the preparation method of the positive-printing heat-sensitive CTP plate material of a kind of high sensitivity condensation resin of pyrogallol acetone resin active etherate according to claim 2 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/NaH
2PO
4The aqueous solution or 1-5%K
2SrF
6The aqueous solution.
5. the positive-printing heat-sensitive CTP plate material of a kind of high sensitivity condensation resin of pyrogallol acetone resin active etherate according to claim 1, it is characterized in that described imaging coating fluid is dissolved in the organic solvent of 800-900 weight portion by the additive of the acid agent of the coloring background dye of the IR dyes of the molten resin of resistance of the film-forming resin of 70-90 weight portion, 2-10 weight portion, 2-5 weight portion, 2-5 weight portion, 2-5 weight portion and 2-5 weight portion and forms.
6. the preparation method of the positive-printing heat-sensitive CTP plate material of a kind of high sensitivity condensation resin of pyrogallol acetone resin active etherate according to claim 2, it is characterized in that described imaging coating fluid is dissolved in the organic solvent of 800-900 weight portion by the additive of the acid agent of the coloring background dye of the IR dyes of the molten resin of resistance of the film-forming resin of 70-90 weight portion, 2-10 weight portion, 2-5 weight portion, 2-5 weight portion, 2-5 weight portion and 2-5 weight portion and forms.
7. the positive-printing heat-sensitive CTP plate material of a kind of high sensitivity condensation resin of pyrogallol acetone resin active etherate according to claim 5 is characterized in that, the molten resin of described resistance is a condensation resin of pyrogallol acetone resin active etherate; 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.
8. the preparation method of the positive-printing heat-sensitive CTP plate material of a kind of high sensitivity condensation resin of pyrogallol acetone resin active etherate according to claim 6 is characterized in that, the molten resin of described resistance is a condensation resin of pyrogallol acetone resin active etherate; 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.
9. according to the preparation method of the positive-printing heat-sensitive CTP plate material of claim 2,6 or 8 described a kind of high sensitivity 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 dissolving, add film-forming resin again, hinder molten resin, acid agent and additive, 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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