CN101373333A - Planographic plate for laser digital scanning and manufacture method thereof - Google Patents
Planographic plate for laser digital scanning and manufacture method thereof Download PDFInfo
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- CN101373333A CN101373333A CNA2008101186854A CN200810118685A CN101373333A CN 101373333 A CN101373333 A CN 101373333A CN A2008101186854 A CNA2008101186854 A CN A2008101186854A CN 200810118685 A CN200810118685 A CN 200810118685A CN 101373333 A CN101373333 A CN 101373333A
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Abstract
The invention relates to printing lithography, in particular to a printing lithographic plate (UV-CTP) for laser digital scanning and the preparation method thereof. The preparation method of the printing lithographic plate (UV-CTP) comprises the following steps: firstly cleaning, neutralizing, electrolyzing and oxidizing aluminum plate strip materials and hole-sealing to obtain the plate base; then, spread-coating the prepared photosensitive coating liquid on the plate base through extruding; and obtaining the UV-CTP after drying. The UV-CTP plate, following the photosensitive CTP plate and the thermosensitive CTP plate, belongs to a novel plate which can be directly imaged through computer digital laser scanning without pretreatment. Compared with the conventional PS plate and CTP plate, the UV-CTP plate has the following characteristics and advantages that the aluminum plate rolling technique with low deformation rate and low surface defect ensures that the plate base of the plate has better physical properties, particularly, the UV-CTP plate is advantageous in manufacturing cost, preservation period and universality over other CTP plates; and the UV-CTP plate has the characteristics of high dot reducibility, high photosensitive speed, great operating latitude and wide application, etc., therefore, the UV-CTP plate is applicable to printing materials, such as metal, plastic, etc., by the UV ink.
Description
Technical field
The present invention relates to a kind of printing lithographic plate, particularly relate to a kind of laser digital scanning with printing lithographic plate (UV-CTP) and preparation method thereof.
Background technology
Chinese printing and equipment and material TIA propose 28 word policies of China's printing and equipment and material industrial development at the beginning of 21 century 10～15 years, that is: " numeral, networked before the seal; printing polychrome, high efficiency, seal various, the robotization in back, high-quality, the seriation of equipment ".For the technical development in Chinese printing future has indicated direction.Under the digitized development trend of printing industry, digitizing printing product quality, the printing efficiency of work play decisive role before the seals such as design, plate-making, become the core of whole printing-flow.Computer To Plate (CTP technology) more and more receives the concern of industry, and after the Drupa 2000, CTP technology and plate move to maturity gradually.CTP technology (Comptuer to Plate) is the direct plate-making technology of a kind of digitizing that occurs nineteen nineties, is one and by computing machine graph text information is copied to technology on the plate by laser platemaker.This technical equipment is made up of preceding system of seal and laser platemaker, is called the Computer To Plate 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 principle of work of CTP system is: the image information that edits on the computing machine 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 makes the plate making operation save film, has saved place, manpower, has reduced error rate, has improved work efficiency and print quality.Its appearance is the revolution of plate making industry.Entering 21st century CTP plate and technology popularizes rapidly in the whole world.The CTP plate of Cun Zaiing is divided into two kinds in the market.A kind of be thermal CTP plate material a kind of be purple laser c TP plate.They are capturing more than 90% of CTP plate market.But these two kinds of plates all have higher market price, will exceed more than one times than the price of traditional PS version.And the mask-making technology complexity, apparatus expensive, storage life is short, and this has caused many unfavorable factors for the popularization of CTP technology.Restricted of the popularization of this technology to a great extent in developing country.About 180,000 families of printing enterprise of China registration according to incompletely statistics, the CTP use amount is 7-8% only, well below developed country.Wanting to catch up with the paces of global printing technology progress, seek the CTP technology and the CTP plate that are fit to China's actual conditions, is the immediate objective of China's press.The present invention just at this situation, has invented the plate of a kind of UV-CTP of being called, and it is the plate of another brand-new available laser digital plate-making after photosensitive, thermal CTP plate material.With photosensitive, thermal CTP plate material the same it be to have characteristics such as reduce the site, film speed fast, seal rate height.Have characteristics such as cost is low, resolution is high, the operation tolerance is big, of many uses in addition.Can be used for of the printing of UV printing ink to metal, plastic or other material.
Summary of the invention
Purpose of the present invention is exactly the deficiency that overcomes existing CTP technology, provides a kind of laser digital scanning with printing lithographic plate (UV-CTP), makes it to promote the use of.
An object of the present invention is to provide a kind of laser digital scanning with printing lithographic plate.
Another object of the present invention provides the preparation method of described laser digital scanning with the printing lithographic plate.
The objective of the invention is to be achieved through the following technical solutions:
A kind of laser digital scanning is characterized in that it being to be prepared from by the following method with printing lithographic plate:
The preparation of A, version base;
With the aluminium plate band with 5～10% sodium hydroxide solutions, under 50～70 ℃ of conditions, clean, 30～120 seconds time, make PH=5-6 through hydrochloric acid or sulfuric acid neutralization again, the electrolysis loop is formed with graphite electrode in the washing back under the alternating current effect, adopt 1～10% nitric acid or hydrochloric acid, the space of a whole page is carried out electrochemical treatment; This electrochemical treatment is divided 3 stages, be electrolysis one, electrolysis two, electrolysis three, in each processing section, adopt different electric currents to be respectively: 3000～2000A, 1500～1000A, 2000～1500A, voltage: 10～30V, pole span: 1～10cm, temperature: 20～40 ℃, time: 120～240 seconds, the acquisition surface roughness Ra was 0.35～0.85 porosity surface.The space of a whole page after the alligatoring is again after 5～10% sodium hydroxide solutions clean ash disposal, washing, under the direct current of 10～30V voltage, 1500～8000A, adopt the aqueous sulfuric acid of 20-40%, in temperature: 10～30 ℃, time: 120～240 seconds, carry out oxidation processes, generate the hydrophilic layer of alundum (Al, use hole sealing agent after the washing again, temperature: 10～70 ℃, time: carry out sealing of hole under 6～20 seconds conditions and handle, the washing oven dry has just obtained being used for the version base that the UV-CTP plate is produced.
Described hole sealing agent is mixed by the raw material of following parts by weight:
Water soluble acid 0.05-0.1 potassium fluoride 0.05-0.8 potassium fluosilicate 0.05-0.5
Pure water 98-99
Wherein water soluble acid is: a kind of in citric acid, the tartrate, or its two potpourri;
The preparation of B, sensitization coating fluid;
(1) preparation of grafting matrix resin
1 weight portion pyrogallic acid and 10～20 weight portion acetone, after mixing stirring and dissolving, be heated to 60～70 ℃, drip 0.1～1.5 weight portion phosphorus oxychloride or hydrochloric acid solution dropwised in 1～2 hour under 60～70 ℃ of conditions, the control temperature is at 60～70 ℃, continue to stir 10～16 hours, reactant is poured in the water of 100 weight portions after the cooling, separated out solid, repeatedly wet concentration, filtration, 40～80 ℃ of oven dry promptly obtain the grafting matrix resin;
(2) manufacturing of photosensitive resin (method one)
1 weight portion 2.1.5-sulfonic acid chloride, grafting matrix resin with the acquisition of 2～3 weight portion steps (), mixed dissolution in 5～8 weight portion dioxane solvents, stir fast under 20～50 ℃ of conditions, drip triethylamine or pyridine or triethanolamine or their liquid organic basic compounds such as derivant, between reaction solution PH=6.5～8.5, react after 4～8 hours reactant poured into and separate out solid under stirring in 80～100% water/ethanolic solution, after cleaning with 1～5% aqueous hydrochloric acid solution again after the filtration, filter, wash, dry and make faint yellow photosensitive resin.Whole process needs lucifuge to carry out.
The manufacturing of photosensitive resin (method two)
1 weight portion 2.1.5-sulfonic acid chloride, mix dropping triethylamine or pyridine or triethanolamine or their liquid organic basic compounds such as derivant under the stirring with 1～4 weight portion trihydroxybenzophenone in 5～8 weight portion dioxane solvents, all the other method steps are with " method one ".
(3) the above-mentioned photosensitive resin of making is prepared by following prescription, makes the sensitization coating fluid.
Photosensitive resin 10～40% weight
Linear phenol-aldehyde resin 50～80% weight
Polyvinyl butyral 0.5～5% weight
Compound in triazine class 1～5% weight
Dyestuff 1～2% weight
Described compound in triazine class is triazine A, triazine B or triazine C; (can buy on the market, Beijing white partridge new technology development company is on sale) dyestuff is the blue BO of alkali, oil molten 603 or Victoria orchid; Linear phenol-aldehyde resin is known, and its composition is the potpourri of metacresol, orthoresol, tert-butyl phenol, and its weight ratio is: 0～1:1～3:0.5～2;
Above-mentioned hybrid solid is dissolved in
Solvent 50～70% weight
Short flat agent 20～30% weight
Levelling agent 10～30% weight
Mixed solvent in, normal temperature stirred 8-10 hour down, filter, solids content be 10～40% weight, viscosity is at the sensitization coating fluid of 4.8-75cp (25 ± 1 ℃).
Described solvent is: glycol monoethyl ether or ethylene glycol monoethyl ether, and short flat agent is: ethylene glycol ether acetate or 1-Methoxy-2-propyl acetate, levelling agent is: dimethyl formamide or methyl ethyl ketone, methyl pyrrolidone;
C, sensitization coating fluid that the B step is obtained by once or the secondary extrusion formula be applied on the version base that the A step obtains, 50～120 ℃ of oven dry down, promptly obtain the UV-CTP plate again.
Laser digital scanning of the present invention is with printing lithographic plate, and its purity of the Aluminum Plate and Strip of wherein mentioning is 99.5%, and other amount of metal is: Zn≤0.03%, Mn≤0.05%, Fe≤0.2%, Mg≤0.04%, Cu≤0.03%, Si≤0.15%; Its intensity, toughness and heat resistance etc. are met the requirements.
A kind of laser digital scanning of the present invention preparation method of printing lithographic plate, it may further comprise the steps;
The preparation of A, version base;
With the aluminium plate band with 5～10% sodium hydroxide solutions, under 50～70 ℃ of conditions, clean, 30～120 seconds time, again after the neutralization of hydrochloric acid or sulfuric acid makes PH=5-6, washing, under the alternating current effect, form the electrolysis loop with graphite electrode, adopt 1～10% nitric acid or hydrochloric acid, the space of a whole page is carried out electrochemical treatment; This electrochemical treatment is divided 3 stages, be electrolysis one, electrolysis two, electrolysis three, in each processing section, adopt different electric currents to be respectively: 3000～2000A, 1500～1000A, 2000～1500A, voltage: 10～30V, pole span: 1～10cm, temperature: 20～40 ℃, time: 120～240 seconds, the acquisition surface roughness Ra was 0.35～0.85 porosity surface.The space of a whole page after the alligatoring is again after 5～10% sodium hydroxide solutions clean ash disposal, washing, under the direct current of 10～30V voltage, 1500～8000A, adopt the aqueous sulfuric acid of 20-40%, in temperature: 10～30 ℃, time: 120～240 seconds, carry out oxidation processes, generate the hydrophilic layer of alundum (Al, use hole sealing agent after the washing again, temperature: 10～70 ℃, time: carry out sealing of hole under 6～20 seconds conditions and handle, the washing oven dry has just obtained being used for the version base that the UV-CTP plate is produced.
Described hole sealing agent is mixed by the raw material of following parts by weight:
Water soluble acid 0.05-0.1 potassium fluoride 0.05-0.8 potassium fluosilicate 0.05-0.5
Pure water 98-99
Wherein water soluble acid is: a kind of in citric acid, the tartrate, or its two potpourri;
The preparation of B, sensitization coating fluid;
(1) preparation of grafting matrix resin
1 weight portion pyrogallic acid and 10～20 weight portion acetone, after mixing stirring and dissolving, be heated to 60～70 ℃, drip 0.1～1.5 weight portion phosphorus oxychloride or hydrochloric acid solution dropwised in 1～2 hour under 60～70 ℃ of conditions, the control temperature is at 60～70 ℃, continue to stir 10～16 hours, reactant is poured in the water of 100 weight portions after the cooling, separated out solid, repeatedly wet concentration, filtration, 40～80 ℃ of oven dry promptly obtain the grafting matrix resin;
(2) manufacturing of photosensitive resin (method one)
1 weight portion 2.1.5-sulfonic acid chloride, grafting matrix resin with the acquisition of 2～3 weight portion steps (), mixed dissolution in 5～8 weight portion dioxane solvents, stir fast under 20～50 ℃ of conditions, drip triethylamine or pyridine or triethanolamine or their liquid organic basic compounds such as derivant, between reaction solution PH=6.5～8.5, react after 4～8 hours reactant poured into and separate out solid under stirring in 80～100% water/ethanolic solution, after cleaning with 1～5% aqueous hydrochloric acid solution again after the filtration, filter, washing, faint yellow photosensitive resin is made in oven dry, and whole process needs lucifuge to carry out.
The manufacturing of photosensitive resin (method two)
1 weight portion 2.1.5-sulfonic acid chloride, mix dropping triethylamine or pyridine or triethanolamine or their liquid organic basic compounds such as derivant under the stirring with 1～4 weight portion trihydroxybenzophenone in 5～8 weight portion dioxane solvents, all the other method steps are with " method one ".
(3) the above-mentioned photosensitive resin of making is prepared by following prescription, makes the sensitization coating fluid.
Photosensitive resin 10～40% weight
Linear phenol-aldehyde resin 50～80% weight
Polyvinyl butyral 0.5～5% weight
Compound in triazine class 1～5% weight
Dyestuff 1～2% weight
Described compound in triazine class is triazine A, triazine B or triazine C (can buy on the market, Beijing white partridge new technology development company is on sale); Dyestuff is the blue BO of alkali, oil molten 603 or Victoria orchid; Linear phenol-aldehyde resin is known, and its composition is the potpourri of metacresol, orthoresol, tert-butyl phenol, and its weight ratio is: 0～1:1～3:0.5～2;
Above-mentioned hybrid solid is dissolved in
Solvent 50～70% weight
Short flat agent 20～30% weight
Levelling agent 10～30% weight
Mixed solvent in, normal temperature stirred 8-10 hour down, filter, solids content be 10～40% weight, viscosity is at the sensitization coating fluid of 4.8-75cp (25 ± 1 ℃).
Described solvent is: glycol monoethyl ether or ethylene glycol monoethyl ether, and short flat agent is: ethylene glycol ether acetate or 1-Methoxy-2-propyl acetate, levelling agent is: dimethyl formamide or methyl ethyl ketone, methyl pyrrolidone;
C, sensitization coating fluid that the B step is obtained by once or the secondary extrusion formula be applied on the version base that the A step obtains, 50～120 ℃ of oven dry down, promptly obtain the UV-CTP plate again.
UV-CTP plate of the present invention is after photosensitive CTP version, heat-sensitive CTP plate, a kind of novel plate that need not pre-service just can be by the direct scanning imagery of computer digit laser.It is different from the PS version and the CTP version of traditional concept, has following characteristics and advantage: low deformation rate, the aluminium sheet rolling technique of low surface defect have guaranteed that the version base of plate has better physical property.The manufacturing technology of novel photosensitive material has guaranteed that the light sensitivity of plate substantially exceeds traditional PS version (50～60:120mj/cm
2) and have higher press resistance rate (8:5 ten thousand seals), storage life (18 months) and resolution (2400dpi:1%～99%).The new electrolysis tech and the employing of hole sealing technology have guaranteed that plate reaches and surpasses other CTP products aspect printability.Particularly manufacturing cost, storage life, versatility all are better than other CTP plates, and have characteristics such as reduce the site, film speed fast, the operation tolerance is big, of many uses.Can be used for of the printing of UV printing ink to metal, plastic or other material.
Embodiment
Following examples are in order further to describe the present invention for example, rather than limit the present invention by any way.
Embodiment 1
The preparation of A, version base;
With its purity is 99.5%, other amount of metal is: the aluminium plate band of Zn≤0.03%, Mn≤0.05%, Fe≤0.2%, Mg≤0.04%, Cu≤0.03%, Si≤0.15% purity 10% sodium hydroxide solution, under 50 ℃ of conditions, clean, 60 seconds time, make PH=6 through the hydrochloric acid neutralization again, the electrolysis loop is formed with graphite electrode in the washing back under the alternating current effect, adopt purity 1.5% hydrochloric acid, and the space of a whole page is carried out electrochemical treatment; This electrochemical treatment is divided 3 stages, 1 stage electric current 2800A, 2 stage electric current 1300A, 3 stage electric current 1800A, and voltage 14V, pole span 1cm, 30 ℃ of temperature, 180 seconds time, the acquisition surface roughness Ra is 0.55 porosity surface.The space of a whole page after the alligatoring is again after purity 5% sodium hydroxide solution cleans ash disposal, washing, under the direct current of 25V voltage, 5500A, adopt the aqueous sulfuric acid of purity 20%, in 20 ℃ of temperature, 240 seconds time, carry out oxidation processes, generate the hydrophilic layer of alundum (Al, use hole sealing agent after the washing again, carry out sealing of hole under 60 ℃ of temperature, the 20 seconds time condition and handle, the washing oven dry has just obtained being used for the version base that the UV-CTP plate is produced.
Described hole sealing agent is mixed by the raw material of following weight:
Citric acid 0.08kg potassium fluoride 0.06kg potassium fluosilicate 0.3kg
Pure water 99kg
The preparation of B, sensitization coating fluid;
(1) preparation of grafting matrix resin
1kg pyrogallic acid and 15kg acetone, after mixing stirring and dissolving, be heated to 70 ℃, under 70 ℃ of conditions, drip the 0.5kg phosphorus oxychloride, 1.5 hour dropwise, the control temperature continues to stir 15 hours at 70 ℃, after the cooling reactant is poured in the water of 100kg, separate out solid, repeatedly wet concentration, filtration, 70 ℃ of oven dry promptly obtain the grafting matrix resin;
(2) manufacturing of photosensitive resin
1kg 2.1.5-sulfonic acid chloride, grafting matrix resin with 2kg step () acquisition, mixed dissolution in 7kg dioxane solvent, stir fast under 40 ℃ of conditions, drip triethylamine, to reaction solution PH=8, react after 6 hours reactant poured into and separate out solid under stirring in 90% water/ethanolic solution, after cleaning with purity 5% aqueous hydrochloric acid solution after the filtration again, filter, wash, dry and make faint yellow photosensitive resin, whole process needs lucifuge to carry out;
(3) the above-mentioned photosensitive resin of making is prepared by following prescription, makes the sensitization coating fluid.
Photosensitive resin 2.5kg
Linear phenol-aldehyde resin 7.5kg
Polyvinyl butyral 0.1kg
Triazine A 0.25kg
The blue BO 0.15kg of alkali
Above-mentioned hybrid solid is dissolved in
Glycol monoethyl ether 34kg
Ethylene glycol ether acetate 12kg
Methyl ethyl ketone 6kg
Mixed solvent in, normal temperature stirred 10 hours down, filter, solids content be 16.8%, viscosity is the sensitization coating fluid of 7.5cp (25 ± 1 ℃).
C, sensitization coating fluid that the B step is obtained are applied on the version base that the A step obtains by the secondary extrusion formula, 100 ℃ of oven dry down, promptly obtain the UV-CTP plate again.
Embodiment 2
The preparation of A, version base;
With its purity is 99.5%, other amount of metal is: the aluminium plate band of Zn≤0.03%, Mn≤0.05%, Fe≤0.2%, Mg≤0.04%, Cu≤0.03%, Si≤0.15% purity 5% sodium hydroxide solution, under 60 ℃ of conditions, clean, 120 seconds time, make PH=5.5 through the hydrochloric acid neutralization again, the electrolysis loop is formed with graphite electrode in the washing back under the alternating current effect, adopt purity 1.8% hydrochloric acid, and the space of a whole page is carried out electrochemical treatment; This electrochemical treatment is divided 3 stages, 1 stage electric current 3000A, 2 stage electric current 1500A, 3 stage electric current 2000A, and voltage 20V, pole span 3cm, 25 ℃ of temperature, 240 seconds time, the acquisition surface roughness Ra is 0.65 porosity surface.The space of a whole page after the alligatoring is again after purity 5% sodium hydroxide solution cleans ash disposal, washing, under the direct current of 20V voltage, 6000A, adopt the aqueous sulfuric acid of purity 30%, in 25 ℃ of temperature, 180 seconds time, carry out oxidation processes, generate the hydrophilic layer of alundum (Al, use hole sealing agent after the washing again, carry out sealing of hole under 55 ℃ of temperature, the 15 seconds time condition and handle, the washing oven dry has just obtained being used for the version base that the UV-CTP plate is produced.
Described hole sealing agent is mixed by the raw material of following weight:
Tartrate 0.06kg potassium fluoride 0.3kg potassium fluosilicate 0.1kg
Pure water 98kg
The preparation of B, sensitization coating fluid;
(1) preparation of grafting matrix resin
1kg pyrogallic acid and 19kg acetone, after mixing stirring and dissolving, be heated to 65 ℃, under 65 ℃ of conditions, drip the 1.0kg phosphorus oxychloride, dropwised in 2 hours, the control temperature continues to stir 13 hours at 65 ℃, after the cooling reactant is poured in the water of 100kg, separate out solid, repeatedly wet concentration, filtration, 80 ℃ of oven dry promptly obtain the grafting matrix resin;
(2) manufacturing of photosensitive resin
1kg 2.1.5-sulfonic acid chloride mixes to drip pyridine under stirring in 7kg dioxane solvent with the 3kg trihydroxybenzophenone, all the other method steps promptly obtain photosensitive resin with " embodiment 1 "; (3) the above-mentioned photosensitive resin of making is prepared by following prescription, makes the sensitization coating fluid.
Photosensitive resin 2kg
Linear phenol-aldehyde resin 8kg
Polyvinyl butyral 0.5kg
Triazine A 0.35kg
The blue 0.15kg of Victoria
Above-mentioned hybrid solid is dissolved in
Ethylene glycol monoethyl ether 16kg
1-Methoxy-2-propyl acetate 6kg
Dimethyl formamide 4kg
Mixed solvent in, normal temperature stirred 10 hours down, filter, solids content be 29.73% weight, viscosity is at the sensitization coating fluid of 60cp (25 ± 1 ℃);
C, sensitization coating fluid that the B step is obtained are applied on the version base that the A step obtains by squash type, 90 ℃ of oven dry down, promptly obtain the UV-CTP plate again.
Embodiment 3
The preparation of A, version base;
With its purity is 99.5%, other amount of metal is: the aluminium plate band of Zn≤0.03%, Mn≤0.05%, Fe≤0.2%, Mg≤0.04%, Cu≤0.03%, Si≤0.15% purity 6% sodium hydroxide solution, under 55 ℃ of conditions, clean, 90 seconds time, again after the hydrochloric acid neutralization makes PH=5, washing, under the alternating current effect, form the electrolysis loop, adopt purity 2% hydrochloric acid, the space of a whole page is carried out electrochemical treatment with graphite electrode; This electrochemical treatment is divided 3 stages, 1 stage electric current 2500A, 2 stage electric current 1250A, 3 stage electric current 1750A, and voltage 15V, pole span 5cm, 35 ℃ of temperature, 240 seconds time, the acquisition surface roughness Ra is 0.60 porosity surface.The space of a whole page after the alligatoring is again after purity 7% sodium hydroxide solution cleans ash disposal, washing, under the direct current of 18V voltage, 5500A, adopt the aqueous sulfuric acid of purity 25%, in 20 ℃ of temperature, 240 seconds time, carry out oxidation processes, generate the hydrophilic layer of alundum (Al, use hole sealing agent after the washing again, carry out sealing of hole under 30 ℃ of temperature, the 10 seconds time condition and handle, the washing oven dry has just obtained being used for the version base that the UV-CTP plate is produced.
Described hole sealing agent is mixed by the raw material of following weight:
Citric acid and tartaric potpourri 0.09kg potassium fluoride 0.6kg potassium fluosilicate 0.2kg
Pure water 98kg
The preparation of B, sensitization coating fluid;
(1) preparation of grafting matrix resin
1kg pyrogallic acid and 13kg acetone, after mixing stirring and dissolving, be heated to 65 ℃, under 65 ℃ of conditions, drip the 0.5kg hydrochloric acid solution, dropwised in 1 hour, the control temperature continues to stir 12 hours at 65 ℃, after the cooling reactant is poured in the water of 100kg, separate out solid, repeatedly wet concentration, filtration, 60 ℃ of oven dry promptly obtain the grafting matrix resin;
(2) manufacturing of photosensitive resin
1kg 2.1.5-sulfonic acid chloride, grafting matrix resin with 2.5kg step () acquisition, mixed dissolution in 8kg dioxane solvent, stir fast under 30 ℃ of conditions, drip triethylamine, to reaction solution PH=7, react after 7 hours reactant poured into and separate out solid under stirring in 85% water/ethanolic solution, after cleaning with purity 4% aqueous hydrochloric acid solution after the filtration again, filter, wash, dry and make faint yellow photosensitive resin, whole process needs lucifuge to carry out;
(3) the above-mentioned photosensitive resin of making is prepared by following prescription, makes the sensitization coating fluid.
Photosensitive resin 2.5kg
Linear phenol-aldehyde resin 5.9kg
Polyvinyl butyral 0.1kg
Triazine B 0.1kg
Molten 603 0.15kg of oil
Above-mentioned hybrid solid is dissolved in
Glycol monoethyl ether 16.5kg
Ethylene glycol ether acetate 7.5kg
Methyl pyrrolidone 3.6kg
Mixed solvent in, normal temperature stirred 10 hours down, filter, solids content be 24.1% weight, viscosity is at the sensitization coating fluid of 45cp (25 ± 1 ℃);
C, sensitization coating fluid that the B step is obtained are applied on the version base that the A step obtains by the secondary extrusion formula, 120 ℃ of oven dry down, promptly obtain the UV-CTP plate again.
Below by the performance of 1 one kinds of laser digital scannings of the comparison and detection explanation embodiment of the invention with the printing lithographic plate;
| Performance | The UV-CTP version of the embodiment of the invention 1 | Heat-sensitive CTP plate | Purple laser c TP version |
| Film speed | 50～60mj/cm 2 | 120～200mj/cm 2 | 50～60uj/cm 2 |
| Resolution (2400dpi) | 1％～99％ | 1％～99％ | 1％～99％ |
| Grains roughness (Ra) | 0.5～0.65 | 0.35～0.5 | 0.4～0.55 |
| Oxide film (g/m 2) | 2.5～3.0 | 2.0～2.8 | 2.0～3.0 |
| Coating (g/m 2) | 1.9～2.0 | 1.0～1.8 | 2.0～2.3 |
| Press resistance rate (ten thousand seals) | ≥10 | ≥15 | ≥10 |
| Ctp request | Do not have | Part needs baking, needs specific developer | Need specific developer |
| Storage life | 18 months | 12 months | 12 months |
| The production specific (special) requirements | Do not have | Most of need thermalization the processing | Need add stopping off |
Claims (4)
1. a laser digital scanning is characterized in that it being to be prepared from by the following method: the preparation of A, version base with the printing lithographic plate
With the aluminium plate band with 5～10% sodium hydroxide solutions, under 50～70 ℃ of conditions, clean, 30～120 seconds time, again after the neutralization of hydrochloric acid or sulfuric acid makes PH=5-6, washing, under the alternating current effect, form the electrolysis loop with graphite electrode, adopt 1～10% nitric acid or hydrochloric acid, the space of a whole page is carried out electrochemical treatment; This electrochemical treatment is divided 3 stages, be electrolysis one, electrolysis two, electrolysis three, in each processing section, adopt different electric currents to be respectively: 3000～2000A, 1500～1000A, 2000～1500A, voltage: 10～30V, pole span: 1～10cm, temperature: 20～40 ℃, time: 120～240 seconds, the acquisition surface roughness Ra was 0.35～0.85 porosity surface.The space of a whole page after the alligatoring is again after 5～10% sodium hydroxide solutions clean ash disposal, washing, under the direct current of 10～30V voltage, 1500～8000A, adopt the aqueous sulfuric acid of 20-40%, in temperature: 10～30 ℃, time: 120～240 seconds, carry out oxidation processes, generate the hydrophilic layer of alundum (Al, use hole sealing agent after the washing again, temperature: 10～70 ℃, time: carry out sealing of hole under 6～20 seconds conditions and handle, the washing oven dry has just obtained being used for the version base that the UV-CTP plate is produced;
Described hole sealing agent is mixed by the raw material of following parts by weight:
Water soluble acid 0.05-0.1 potassium fluoride 0.05-0.8 potassium fluosilicate 0.05-0.5
Pure water 98-99
Wherein water soluble acid is: a kind of in citric acid, the tartrate, or its two potpourri;
The preparation of B, sensitization coating fluid;
One, the preparation of grafting matrix resin
1 weight portion pyrogallic acid and 10～20 weight portion acetone, after mixing stirring and dissolving, be heated to 60～70 ℃, drip 0.1～1.5 weight portion phosphorus oxychloride or hydrochloric acid solution dropwised in 1～2 hour under 60～70 ℃ of conditions, the control temperature is at 60～70 ℃, continue to stir 10～16 hours, reactant is poured in the water of 100 weight portions after the cooling, separated out solid, repeatedly wet concentration, filtration, 40～80 ℃ of oven dry promptly obtain the grafting matrix resin;
Two, the manufacturing of photosensitive resin (method one)
1 weight portion 2.1.5-sulfonic acid chloride, grafting matrix resin with the acquisition of 2～3 weight portion steps 1, mixed dissolution in 5～8 weight portion dioxane solvents, stir fast under 20～50 ℃ of conditions, drip triethylamine or pyridine or triethanolamine or their liquid organic basic compounds such as derivant, between reaction solution PH=6.5～8.5, react after 4～8 hours reactant poured into and separate out solid under stirring in 80～100% water/ethanolic solution, after cleaning with 1～5% aqueous hydrochloric acid solution again after the filtration, filter, wash, dry and make faint yellow photosensitive resin.Whole process needs lucifuge to carry out;
The manufacturing of photosensitive resin (method two)
1 weight portion 2.1.5-sulfonic acid chloride, mix dropping triethylamine or pyridine or triethanolamine or their liquid organic basic compounds such as derivant under the stirring with 1～4 weight portion trihydroxybenzophenone in 5～8 weight portion dioxane solvents, all the other method steps are with " method one ";
Three, the above-mentioned photosensitive resin of making is prepared by following prescription, makes the sensitization coating fluid
Photosensitive resin 10～40% weight
Linear phenol-aldehyde resin 50～80% weight
Polyvinyl butyral 0.5～5% weight
Compound in triazine class 1～5% weight
Dyestuff 1～2% weight
Above-mentioned hybrid solid is dissolved in
Solvent 50～70% weight
Short flat agent 20～30% weight
Levelling agent 10～30% weight
Mixed solvent in, normal temperature stirred 8-10 hour down, filter, solids content be 10～40% weight, viscosity is at the sensitization coating fluid of 4.8-75cp (25 ± 1 ℃);
Described solvent is: glycol monoethyl ether or ethylene glycol monoethyl ether, and short flat agent is: ethylene glycol ether acetate or 1-Methoxy-2-propyl acetate, levelling agent is: dimethyl formamide or methyl ethyl ketone, methyl pyrrolidone;
C, sensitization coating fluid that the B step is obtained by once or the secondary extrusion formula be applied on the version base that the A step obtains, 50～120 ℃ of oven dry down, promptly obtain the UV-CTP plate again.
2. laser digital scanning according to claim 1 is with printing lithographic plate, its purity of the Aluminum Plate and Strip of wherein mentioning is 99.5%, and other amount of metal is: Zn≤0.03%, Mn≤0.05%, Fe≤0.2%, Mg≤0.04%, Cu≤0.03%, Si≤0.15%.
3. laser digital scanning according to claim 2 is with printing lithographic plate, and wherein said compound in triazine class is triazine A or triazine B or triazine C; Dyestuff is the blue BO of alkali or oil molten 603 or Victoria orchid.
4. a laser digital scanning is with the preparation method of printing lithographic plate, and it may further comprise the steps;
The preparation of A, version base;
With the aluminium plate band with 5～10% sodium hydroxide solutions, under 50～70 ℃ of conditions, clean, 30～120 seconds time, again after the neutralization of hydrochloric acid or sulfuric acid makes PH=5-6, washing, under the alternating current effect, form the electrolysis loop with graphite electrode, adopt 1～10% nitric acid or hydrochloric acid, the space of a whole page is carried out electrochemical treatment; This electrochemical treatment is divided 3 stages, be electrolysis one, electrolysis two, electrolysis three, in each processing section, adopt different electric currents to be respectively: 3000～2000A, 1500～1000A, 2000～1500A, voltage: 10～30V, pole span: 1～10cm, temperature: 20～40 ℃, time: 120～240 seconds, the acquisition surface roughness Ra was 0.35～0.85 porosity surface.The space of a whole page after the alligatoring is again after 5～10% sodium hydroxide solutions clean ash disposal, washing, under the direct current of 10～30V voltage, 1500～8000A, adopt the aqueous sulfuric acid of 20-40%, in temperature: 10～30 ℃, time: 120～240 seconds, carry out oxidation processes, generate the hydrophilic layer of alundum (Al, use hole sealing agent after the washing again, temperature: 10～70 ℃, time: carry out sealing of hole under 6～20 seconds conditions and handle, the washing oven dry has just obtained being used for the version base that the UV-CTP plate is produced;
Described hole sealing agent is mixed by the raw material of following parts by weight:
Water soluble acid 0.05-0.1 potassium fluoride 0.05-0.8 potassium fluosilicate 0.05-0.5
Pure water 98-99
Wherein water soluble acid is: a kind of in citric acid, the tartrate, or its two potpourri;
The preparation of B, sensitization coating fluid;
One, the preparation of grafting matrix resin
1 weight portion pyrogallic acid and 10～20 weight portion acetone, after mixing stirring and dissolving, be heated to 60～70 ℃, drip 0.1～1.5 weight portion phosphorus oxychloride or hydrochloric acid solution dropwised in 1～2 hour under 60～70 ℃ of conditions, the control temperature is at 60～70 ℃, continue to stir 10～16 hours, reactant is poured in the water of 100 weight portions after the cooling, separated out solid, repeatedly wet concentration, filtration, 40～80 ℃ of oven dry promptly obtain the grafting matrix resin;
Two, the manufacturing of photosensitive resin (method one)
1 weight portion 2.1.5-sulfonic acid chloride, grafting matrix resin with the acquisition of 2～3 weight portion steps (), mixed dissolution in 5～8 weight portion dioxane solvents, stir fast under 20～50 ℃ of conditions, drip triethylamine or pyridine or triethanolamine or their liquid organic basic compounds such as derivant, between reaction solution PH=6.5～8.5, react after 4～8 hours reactant poured into and separate out solid under stirring in 80～100% water/ethanolic solution, after cleaning with 1～5% aqueous hydrochloric acid solution again after the filtration, filter, washing, faint yellow photosensitive resin is made in oven dry, and whole process needs lucifuge to carry out;
The manufacturing of photosensitive resin (method two)
1 weight portion 2.1.5-sulfonic acid chloride, in 5～8 weight portion dioxane solvents, mix under the stirring with 1～4 weight portion trihydroxybenzophenone, drip triethylamine or pyridine or triethanolamine or their liquid organic basic compounds such as derivant, all the other method steps are with " method one ";
Three, the above-mentioned photosensitive resin of making is prepared by following prescription, makes the sensitization coating fluid.
Photosensitive resin 10～40% weight
Linear phenol-aldehyde resin 50～80% weight
Polyvinyl butyral 0.5～5% weight
Compound in triazine class 1～5% weight
Dyestuff 1～2% weight
Described compound in triazine class is triazine A, triazine B or triazine C; Dyestuff is the blue BO of alkali, oil molten 603 or Victoria orchid;
Above-mentioned hybrid solid is dissolved in
Solvent 50～70% weight
Short flat agent 20～30% weight
Levelling agent 10～30% weight
Mixed solvent in, normal temperature stirred 8-10 hour down, filter, solids content be 10～40% weight, viscosity is at the sensitization coating fluid of 4.8-75cp (25 ± 1 ℃);
Described solvent is: glycol monoethyl ether or ethylene glycol monoethyl ether, and short flat agent is: ethylene glycol ether acetate or 1-Methoxy-2-propyl acetate, levelling agent is: dimethyl formamide or methyl ethyl ketone, methyl pyrrolidone;
C, sensitization coating fluid that the B step is obtained by once or the secondary extrusion formula be applied on the version base that the A step obtains, 50～120 ℃ of oven dry down, promptly obtain the UV-CTP plate again.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876792B (en) * | 2009-09-28 | 2012-01-18 | 上海强邦印刷器材有限公司 | Normal-temperature hole sealing technology of CTP base |
| CN102575356A (en) * | 2009-10-16 | 2012-07-11 | 汉高股份有限及两合公司 | Multi-step method for producing alkali-resistant anodized aluminum surfaces |
| CN103140357A (en) * | 2010-09-29 | 2013-06-05 | 富士胶片株式会社 | Lithographic printing plate master and plate making method using the same |
| CN103290453A (en) * | 2013-05-10 | 2013-09-11 | 黄山金瑞泰科技有限公司 | Hole sealing agent for hole sealing processing of computer-to-plate (CTP) printing plate material |
| 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 |
| CN105774286A (en) * | 2016-03-07 | 2016-07-20 | 湖州太德汇印刷器材有限公司 | Environment-friendly ink-jet computer-to-plate material |
| CN107330482A (en) * | 2017-07-19 | 2017-11-07 | 上海美声服饰辅料有限公司 | The printing and recognition methods of a kind of identification code |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876792B (en) * | 2009-09-28 | 2012-01-18 | 上海强邦印刷器材有限公司 | Normal-temperature hole sealing technology of CTP base |
| CN102575356A (en) * | 2009-10-16 | 2012-07-11 | 汉高股份有限及两合公司 | Multi-step method for producing alkali-resistant anodized aluminum surfaces |
| CN103140357A (en) * | 2010-09-29 | 2013-06-05 | 富士胶片株式会社 | Lithographic printing plate master and plate making method using the same |
| CN103140357B (en) * | 2010-09-29 | 2016-06-01 | 富士胶片株式会社 | Original edition of lithographic printing plate and the method for platemaking using it |
| 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 |
| CN103290453A (en) * | 2013-05-10 | 2013-09-11 | 黄山金瑞泰科技有限公司 | Hole sealing agent for hole sealing processing of computer-to-plate (CTP) printing plate material |
| CN105774286A (en) * | 2016-03-07 | 2016-07-20 | 湖州太德汇印刷器材有限公司 | Environment-friendly ink-jet computer-to-plate material |
| CN107330482A (en) * | 2017-07-19 | 2017-11-07 | 上海美声服饰辅料有限公司 | The printing and recognition methods of a kind of identification code |
| CN107330482B (en) * | 2017-07-19 | 2020-03-10 | 浙江美声智能系统有限公司 | Printing and identifying method for identification code |
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| CN100585494C (en) | 2010-01-27 |
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Assignee: Longma Aluminum Group Co.,Ltd. Assignor: BEIJING YINYUE REFINED ALUMINIUM TECHNOLOGY Co.,Ltd. Contract record no.: 2011130000127 Denomination of invention: Planographic plate for laser digital scanning and manufacture method thereof Granted publication date: 20100127 License type: Exclusive License Open date: 20090225 Record date: 20110830 |
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Effective date of registration: 20190131 Address after: 072750 No. 2 Longma Road, Zhuozhou City, Hebei Province Patentee after: Longma Aluminum Group Co.,Ltd. Address before: 100039 Room 203, block A1, 100 Lang Park, 36 Fuxing Road, Haidian District, Beijing. Patentee before: BEIJING YINYUE REFINED ALUMINIUM TECHNOLOGY Co.,Ltd. |
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Denomination of invention: Printing plate for laser digital scanning and its preparation method Effective date of registration: 20221116 Granted publication date: 20100127 Pledgee: Bank of China Limited Baoding Branch Pledgor: Longma Aluminum Group Co.,Ltd. Registration number: Y2022130000111 |