CN103625146A - Plate-substrate graining process - Google Patents
Plate-substrate graining process Download PDFInfo
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- CN103625146A CN103625146A CN201210308975.1A CN201210308975A CN103625146A CN 103625146 A CN103625146 A CN 103625146A CN 201210308975 A CN201210308975 A CN 201210308975A CN 103625146 A CN103625146 A CN 103625146A
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Abstract
The invention relates to a plate-substrate graining process. The plate-substrate graining process comprises the step A of saponification, the step B of neutralization, the step C of high-pressure pure water spraying of ionized water, the step D of electrolytic treatment, the step E of albefaction, the step F of electrolytic oxidation, the step G of high-pressure pure water spraying of ionized water, the step H of dissolving assisting and hole sealing, the step I of high-pressure pure water spraying of ionized water, the step J of drying, and the step K of executing coating and other follow-up working procedures. According to the plate-substrate graining process, correlational research is conducted on plate-substrate preprocessing, applied in a production process, of the thermosensitive plate material, plate-substrate graining is conducted through a series of chemical and electrochemical methods, a compact oxide film of a multilayer composite grain structure is formed on the plate-substrate surface, and it is guaranteed that the plate substrate has accurate screen dot reduction and excellent abrasive resistance.
Description
Technical field
The present invention relates to a kind of edition base sand screen mesh treatment process.
Background technology
At present, thermosensitive CTP plate-making technology is the most ripe at present, the most stable, the plate-making technology that effect is best.Its use computer original copy character image through digitized processing and slot man, directly in the enterprising line scanning imaging of forme, then by postprocessing working procedures such as development, photographic fixing or exempt from post processing and make forme.Compare with traditional film printing down technique have operation simple, without advantages such as slice, printing down and plate-making cycle are short.
CTP system and technology, as a developing direction of Chinese printing publishing, have been put among the emphasis science and technology item of country " 12 " planning, are typical high-tech, high development, the technology-intensive industries of high repayment.In the last few years, the exploitation of plate and improvement speed were also very rapid.CTP equipment price significantly declined and has promoted rising and the exploitation in market in 5 years.
For this reason, correlative study has been carried out in the pretreatment that the inventor prepares base material for the temperature-sensitive plate that applies to production process, prepare base material, by a series of chemistry, electrochemical method, version base is carried out to sand screen mesh processing, make its surface form MULTILAYER COMPOSITE Grains structure and closely knit oxide-film, guarantee that plate has the reduction of accurate site and superior wearability.
Summary of the invention
For solving the problems of the technologies described above, the invention provides and a kind ofly can guarantee that plate has edition base sand screen mesh treatment process of the reduction of accurate site and excellent wear resistance.
An edition base sand screen mesh treatment process, comprises the steps:
A saponification is processed: get the NaOH of 2 parts (volume parts), 1 part of (volume parts) Na
3pO
4, 1 part of (volume parts) Na
2cO
3, 1 part of (volume parts) C
6h
11o
7na, above-mentioned medicine mixed dissolution in proportion, is diluted to 50-100g/L and makes working solution, is heated to 50-55 ℃, by anti-alkali pump circulation immersion formula, acts on the space of a whole page, and the protection oil on Main Ingredients and Appearance NaOH and aluminum substrate surface is removed protection oil; Aluminium oxide is removed in the aluminium oxide reaction that NaOH and aluminum substrate surface form; NaOH and aluminum substrate reaction, shift to an earlier date alligatoring to version base, for electrolytic graining provides the aluminum plate foundation of surface without oil, No oxided film and the certain alligatoring of process;
Na
3pO
4play emulsifying agent and detergent action;
Na
2cO
3play water softener effect;
C
6h
11o
7na plays slow corrosiveness, prevents NaOH to version base excessive corrosion and has certain scale effect.
Principle:
3NaOH+ROCOH
2C-CHOCOR-CH
2OCOR→3R-COONa+HOH
2C-CHOH-CH
2OH
2NaOH+Al
2O
3→2NaAlO
2+H
2O
2NaOH+2Al+2H
2O→2NaAlO
2+3H
2↑
B neutralization: industrial HCl is added to the water to the solution of making 10-15g/L, with the mode of acid-proof pump circulated sprinkling, is applied to the space of a whole page at normal temperatures, in and the oil removing alkali that edition primary surface is not rinsed well later, and further shift to an earlier date alligatoring version base;
Object be in and residual alkaline matter in previous step process, be that next step electrolysis creates one without the version base of alkaline matter;
Principle: NaOH+HCl → NaCl+H
2o
2Al+6HCl→2AlCl
3+3H
2↑
C ionized water High Pressure Pure Water spray:
Under normal temperature, adopt deionized water (reverse osmosis equipment is produced), utilize water pump circulation high-pressure spraying mode to clean thoroughly the space of a whole page, for next step electrolysis version a base clean for the last time, guarantee that clean layout is without chemical substance, thereby make electrolytic process not be subject to the interference of other chemical substances, reach best electrolytic environments and effect;
D electrolytic treatments: get 4 parts of (volume parts) HCl, 2 parts of (volume parts) H
3pO
4, 3 parts of (volume parts) HAc, equipment adopts low voltage and high current not wait the AC adapter of waveform output, HCl, H
3pO
4, HAc is dissolved in the water in proportion and makes electrolyte, total acidity is controlled at 25-30g/L (controlling its concentration by acid base neutralization titration), temperature is 25-30 ℃ (controlling by heat exchanger and temperature control system), the alternating current that adds the waveform such as not grade of low voltage and high current, electric current and voltage swing are according to space of a whole page width and speed of production adjustment, utilize alternating current can continuously change the feature of polarity, make aluminium plate that electrolytic etching constantly occur in mixed acid solution and produce fine and close and uniform Grains, this process adopts and repeats electrolysis process, equal to allow aluminum plate foundation pass through electrolysis process twice, on the Grains producing for the first time, do again one deck Grains, make fine and close multilayer Grains uniformly.
Principle: Al-3e → Al
3+
2H
++2e→H
2↑
Auxiliary material H
3pO
4, HAc oxyacid can suppress overelectrolysis, increase aluminum substrate play erosion point, thereby make Grains finer and close, even;
By above processing, make aluminum plate foundation surface produce the fine and close multilayer Grains uniformly of one deck.Thereby make ultimogenitary product have higher site reducing property and higher ink-water balance performance, improve press quality and the applicability of plate;
E. albefaction is processed: get: 2 parts of (volume parts) NaOH, 1 part of (volume parts) Na
3pO
4, 1 part of (volume parts) Na
2cO
3, 1 part of (volume parts) C
6h
11o
7na, above-mentioned medicine mixed dissolution in proportion, is diluted to 50-100g/L and makes working solution, is heated to 30-35 ℃, by anti-alkali pump circulated sprinkling mode, acts on the space of a whole page, removes the electrolysis grey matter producing after electrolysis, makes the space of a whole page bright, clean in vain;
Object: Grains is carried out to certain finishing, removes in Grains more irregular sharp parts and make Grains more smooth evenly, remove electrolysis ash make product in printing process, be difficult for falling version and on dirty;
F. electrolytic oxidation is processed: sulfuric acid is dissolved in and in water, makes the working solution that concentration is 180-220g/L (acid base neutralization titration control), temperature 20-25 ℃ (heat exchanger and temperature control system are controlled), the direct current that adds low voltage and high current by acid-proof pump circulation immersion mode, current/voltage size is determined according to space of a whole page width and speed of production, makes it on Grains surface, form that one deck is fine and close, oxide-film uniformly;
Anode A l-3e → Al
3+
Negative electrode 2H
++ 2e → H
2↑
That is:
Softer because of the Grains quality that aluminium is made, be easily worn, and in its Surface Creation layer oxide film hard wear resistant comparatively, thereby protection Grains is difficult for being worn, make plate good anti-wear performance again, improve its resistance to seal ability, extend the service time of product, for user cost-saving;
G. ionized water High Pressure Pure Water sprays:
Adopt at normal temperatures deionized water (reverse osmosis equipment is produced), utilize water pump circulation high-pressure spraying mode to clean thoroughly the space of a whole page.For the version base of next step sealing of hole once cleans thoroughly, guarantee that clean layout is without chemical substance, thereby make sealing of hole process not be subject to the interference of other chemical substances, reach best sealing of hole environment and effect;
H. hydrotropy sealing of hole:
NaH
2pO
4in the ratio of 65-75g/L, NaF, in the ratio of 550-650mg/L, dissolve in and in water, make working solution and be heated to 40-50 ℃, by the mode of corrosion protection pump circulation immersion, the space of a whole page is processed, the irregular aperture in oxide-film top layer that Grains surface is produced in oxidizing process carries out airtight, thereby improve the ink-receptive performance of picture and text part, improve the hydrophilic ability of non-graphic part, it is dirty to be that non-graphic part not go up, the pressrun of raising plate;
I. ionized water High Pressure Pure Water sprays: adopt at normal temperatures deionized water (reverse osmosis equipment is produced), utilize water pump circulation high-pressure spraying mode to clean thoroughly the space of a whole page.The version base of processing is cleaned for the last time thoroughly, guarantee that clean layout, without chemical substance, does not affect the quality of product;
J. dry: adopt infrared heating drying type baking oven and temperature control system, temperature general control is thoroughly dried the residual moisture of last one high-pressure spraying at 110-120 ℃, makes an edition base dried and clean, so that coating process;
K enters the raw materials of operation: K1. coating later such as coating: raw material choose import thermosensitive CTP coating fluid, equipment adopts extrusion type coating head, high-precision measuring pump and frequency converter, with Frequency Converter Control high-precision measuring pump, coating fluid is got in dispense tip, by dispense tip, by coating fluid, be coated onto uniformly on the treated Grains layer of the space of a whole page, thereby the rotating speed that utilizes Frequency Converter Control pump is controlled the thickness of coating, object is on Grains layer, to form the uniform heat-sensitive layer of one deck, thereby makes plate can make various picture and text in follow-up printing process; K2. coating is dried: equipment adopts infrared heating type baking oven and temperature control system, utilize temperature control system to control infrared heating pipe, make baking oven remain on 114-116 ℃, to being coated with the space of a whole page of heat-sensitive glue, carried out constant temperature drying, allow heat-sensitive layer and Grains layer combine closely, make finished product.
The present invention is directed to the temperature-sensitive plate that applies to production process prepares the pretreatment of base material and has carried out correlative study, prepare base material, by a series of chemistry, electrochemical method, version base is carried out to sand screen mesh processing, make its surface form MULTILAYER COMPOSITE Grains structure and closely knit oxide-film, guarantee that plate has the reduction of accurate site and superior wearability.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention.
The specific embodiment
Below the specific embodiment of the present invention is described in further detail.
Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
Referring to Fig. 1, version base sand screen mesh treatment process of the present invention, it comprises the steps:
A saponification is processed: get the NaOH of 2 parts (volume parts), 1 part of (volume parts) Na
3pO
4, 1 part of (volume parts) Na
2cO
3, 1 part of (volume parts) C
6h
11o
7na, above-mentioned medicine mixed dissolution in proportion, is diluted to 50-100g/L and makes working solution, is heated to 50-55 ℃, by anti-alkali pump circulation immersion formula, acts on the space of a whole page, and the protection oil on Main Ingredients and Appearance NaOH and aluminum substrate surface is removed protection oil; Aluminium oxide is removed in the aluminium oxide reaction that NaOH and aluminum substrate surface form; NaOH and aluminum substrate reaction, shift to an earlier date alligatoring to version base, for electrolytic graining provides the aluminum plate foundation of surface without oil, No oxided film and the certain alligatoring of process;
Na
3pO
4play emulsifying agent and detergent action;
Na
2cO
3play water softener effect;
C
6h
11o
7na plays slow corrosiveness, prevents NaOH to version base excessive corrosion and has certain scale effect.
Principle:
3NaOH+ROCOH
2C-CHOCOR-CH
2OCOR→3R-COONa+HOH
2C-CHOH-CH
2OH
2NaOH+Al
2O
3→2NaAlO
2+H
2O
2NaOH+2Al+2H
2O→2NaAlO
2+3H
2↑
B neutralization: industrial HCl is added to the water to the solution of making 10-15g/L, with the mode of acid-proof pump circulated sprinkling, is applied to the space of a whole page at normal temperatures, in and the oil removing alkali that edition primary surface is not rinsed well later, and further shift to an earlier date alligatoring version base;
Object be in and residual alkaline matter in previous step process, be that next step electrolysis creates one without the version base of alkaline matter;
Principle: NaOH+HCl → NaCl+H
2o
2Al+6HCl→2AlCl
3+3H
2↑
C ionized water High Pressure Pure Water spray:
Under normal temperature, adopt deionized water (reverse osmosis equipment is produced), utilize water pump circulation high-pressure spraying mode to clean thoroughly the space of a whole page, for next step electrolysis version a base clean for the last time, guarantee that clean layout is without chemical substance, thereby make electrolytic process not be subject to the interference of other chemical substances, reach best electrolytic environments and effect;
D electrolytic treatments: get 4 parts of (volume parts) HCl, 2 parts of (volume parts) H
3pO
4, 3 parts of (volume parts) HAc, equipment adopts low voltage and high current not wait the AC adapter of waveform output, HCl, H
3pO
4, HAc is dissolved in the water in proportion and makes electrolyte, total acidity is controlled at 25-30g/L (controlling its concentration by acid base neutralization titration), temperature is 25-30 ℃ (controlling by heat exchanger and temperature control system), the alternating current that adds the waveform such as not grade of low voltage and high current, electric current and voltage swing are according to space of a whole page width and speed of production adjustment, utilize alternating current can continuously change the feature of polarity, make aluminium plate that electrolytic etching constantly occur in mixed acid solution and produce fine and close and uniform Grains, this process adopts and repeats electrolysis process, equal to allow aluminum plate foundation pass through electrolysis process twice, on the Grains producing for the first time, do again one deck Grains, make fine and close multilayer Grains uniformly.
Principle: Al-3e → Al
3+
2H
++2e→H
2↑
Auxiliary material H
3pO
4, HAc oxyacid can suppress overelectrolysis, increase aluminum substrate play erosion point, thereby make Grains finer and close, even;
By above processing, make aluminum plate foundation surface produce the fine and close multilayer Grains uniformly of one deck.Thereby make ultimogenitary product have higher site reducing property and higher ink-water balance performance, improve press quality and the applicability of plate;
E. albefaction is processed: get: 2 parts of (volume parts) NaOH, 1 part of (volume parts) Na
3pO
4, 1 part of (volume parts) Na
2cO
3, 1 part of (volume parts) C
6h
11o
7na, above-mentioned medicine mixed dissolution in proportion, is diluted to 50-100g/L and makes working solution, is heated to 30-35 ℃, by anti-alkali pump circulated sprinkling mode, acts on the space of a whole page, removes the electrolysis grey matter producing after electrolysis, makes the space of a whole page bright, clean in vain;
Object: Grains is carried out to certain finishing, removes in Grains more irregular sharp parts and make Grains more smooth evenly, remove electrolysis ash make product in printing process, be difficult for falling version and on dirty;
F. electrolytic oxidation is processed: sulfuric acid is dissolved in and in water, makes the working solution that concentration is 180-220g/L (acid base neutralization titration control), temperature 20-25 ℃ (heat exchanger and temperature control system are controlled), the direct current that adds low voltage and high current by acid-proof pump circulation immersion mode, current/voltage size is determined according to space of a whole page width and speed of production, makes it on Grains surface, form that one deck is fine and close, oxide-film uniformly;
Anode A l-3e → Al
3+
Negative electrode 2H
++ 2e → H
2↑
That is:
Softer because of the Grains quality that aluminium is made, be easily worn, and in its Surface Creation layer oxide film hard wear resistant comparatively, thereby protection Grains is difficult for being worn, make plate good anti-wear performance again, improve its resistance to seal ability, extend the service time of product, for user cost-saving;
G. ionized water High Pressure Pure Water sprays:
Adopt at normal temperatures deionized water (reverse osmosis equipment is produced), utilize water pump circulation high-pressure spraying mode to clean thoroughly the space of a whole page.For the version base of next step sealing of hole once cleans thoroughly, guarantee that clean layout is without chemical substance, thereby make sealing of hole process not be subject to the interference of other chemical substances, reach best sealing of hole environment and effect;
H. hydrotropy sealing of hole:
NaH
2pO
4in the ratio of 65-75g/L, NaF, in the ratio of 550-650mg/L, dissolve in and in water, make working solution and be heated to 40-50 ℃, by the mode of corrosion protection pump circulation immersion, the space of a whole page is processed, the irregular aperture in oxide-film top layer that Grains surface is produced in oxidizing process carries out airtight, thereby improve the ink-receptive performance of picture and text part, improve the hydrophilic ability of non-graphic part, it is dirty to be that non-graphic part not go up, the pressrun of raising plate;
I. ionized water High Pressure Pure Water sprays: adopt at normal temperatures deionized water (reverse osmosis equipment is produced), utilize water pump circulation high-pressure spraying mode to clean thoroughly the space of a whole page.The version base of processing is cleaned for the last time thoroughly, guarantee that clean layout, without chemical substance, does not affect the quality of product;
J. dry: adopt infrared heating drying type baking oven and temperature control system, temperature general control is thoroughly dried the residual moisture of last one high-pressure spraying at 110-120 ℃, makes an edition base dried and clean, so that coating process;
K enters the raw materials of operation: K1. coating later such as coating: raw material choose import thermosensitive CTP coating fluid, equipment adopts extrusion type coating head, high-precision measuring pump and frequency converter, with Frequency Converter Control high-precision measuring pump, coating fluid is got in dispense tip, by dispense tip, by coating fluid, be coated onto uniformly on the treated Grains layer of the space of a whole page, thereby the rotating speed that utilizes Frequency Converter Control pump is controlled the thickness of coating, object is on Grains layer, to form the uniform heat-sensitive layer of one deck, thereby makes plate can make various picture and text in follow-up printing process; K2. coating is dried: equipment adopts infrared heating type baking oven and temperature control system, utilize temperature control system to control infrared heating pipe, make baking oven remain on 114-116 ℃, to being coated with the space of a whole page of heat-sensitive glue, carried out constant temperature drying, allow heat-sensitive layer and Grains layer combine closely, make finished product.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (1)
1. a version base sand screen mesh treatment process, is characterized in that, comprises the steps:
A saponification is processed: get the NaOH of 2 parts (volume parts), 1 part of (volume parts) Na
3pO
4, 1 part of (volume parts) Na
2cO
3, 1 part of (volume parts) C
6h
11o
7na, above-mentioned medicine mixed dissolution in proportion, is diluted to 50-100g/L and makes working solution, is heated to 50-55 ℃, by anti-alkali pump circulation immersion formula, acts on the space of a whole page, and the protection oil on Main Ingredients and Appearance NaOH and aluminum substrate surface is removed protection oil; Aluminium oxide is removed in the aluminium oxide reaction that NaOH and aluminum substrate surface form; NaOH and aluminum substrate reaction, shift to an earlier date alligatoring to version base, for electrolytic graining provides the aluminum plate foundation of surface without oil, No oxided film and the certain alligatoring of process;
B neutralization: industrial HCl is added to the water to the solution of making 10-15g/L, with the mode of acid-proof pump circulated sprinkling, is applied to the space of a whole page at normal temperatures, in and the oil removing alkali that edition primary surface is not rinsed well later, and further shift to an earlier date alligatoring version base;
C ionized water High Pressure Pure Water spray: adopt deionized water under normal temperature, utilize water pump circulation high-pressure spraying mode to clean thoroughly the space of a whole page, for next step electrolysis version a base clean for the last time, guarantee that clean layout is without chemical substance, thereby make electrolytic process not be subject to the interference of other chemical substances, reach best electrolytic environments and effect;
D electrolytic treatments: get 4 parts of (volume parts) HCl, 2 parts of (volume parts) H
3pO
4, 3 parts of (volume parts) HAc, equipment adopts low voltage and high current not wait the AC adapter of waveform output, HCl, H
3pO
4, HAc is dissolved in the water in proportion and makes electrolyte, total acidity is controlled at 25-30g/L, temperature is at 25-30 ℃, the alternating current that adds the waveform such as not grade of low voltage and high current, electric current and voltage swing are according to space of a whole page width and speed of production adjustment, utilize alternating current can continuously change the feature of polarity, make aluminium plate that electrolytic etching constantly occur in mixed acid solution and produce fine and close and uniform Grains, this process adopts and repeats electrolysis process, equal to allow aluminum plate foundation pass through electrolysis process twice, on the Grains producing for the first time, do again one deck Grains, make fine and close multilayer Grains uniformly,
By above processing, make aluminum plate foundation surface produce the fine and close multilayer Grains uniformly of one deck, thereby make ultimogenitary product have higher site reducing property and higher ink-water balance performance, improve press quality and the applicability of plate;
E. albefaction is processed: get 2 parts of (volume parts) NaOH, 1 part of (volume parts) Na
3pO
4, 1 part of (volume parts) Na
2cO
3, 1 part of (volume parts) C
6h
11o
7na, above-mentioned medicine mixed dissolution in proportion, is diluted to 50-100g/L and makes working solution, is heated to 30-35 ℃, by anti-alkali pump circulated sprinkling mode, acts on the space of a whole page, removes the electrolysis grey matter producing after electrolysis, makes the space of a whole page bright, clean in vain;
F. electrolytic oxidation is processed: sulfuric acid is dissolved in and in water, makes the working solution that concentration is 180-220g/L (acid base neutralization titration control), temperature 20-25 ℃ (heat exchanger and temperature control system are controlled), the direct current that adds low voltage and high current by acid-proof pump circulation immersion mode, current/voltage size is determined according to space of a whole page width and speed of production, makes it on Grains surface, form that one deck is fine and close, oxide-film uniformly;
G. ionized water High Pressure Pure Water sprays: adopt at normal temperatures deionized water to utilize water pump circulation high-pressure spraying mode to clean thoroughly the space of a whole page, for next step sealing of hole version a base once clean thoroughly, guarantee that clean layout is without chemical substance, thereby make sealing of hole process not be subject to the interference of other chemical substances, reach best sealing of hole environment and effect;
H. hydrotropy sealing of hole: NaH
2pO
4in the ratio of 65-75g/L, NaF, in the ratio of 550-650mg/L, dissolve in and in water, make working solution and be heated to 40-50 ℃, by the mode of corrosion protection pump circulation immersion, the space of a whole page is processed, the irregular aperture in oxide-film top layer that Grains surface is produced in oxidizing process carries out airtight, thereby improve the ink-receptive performance of picture and text part, improve the hydrophilic ability of non-graphic part, it is dirty to be that non-graphic part not go up, the pressrun of raising plate;
I. ionized water High Pressure Pure Water sprays: adopt at normal temperatures deionized water to utilize water pump circulation high-pressure spraying mode to clean thoroughly the space of a whole page, the version base of processing is cleaned for the last time thoroughly, guarantee that clean layout, without chemical substance, does not affect the quality of product;
J. dry: adopt infrared heating drying type baking oven and temperature control system, temperature general control is thoroughly dried the residual moisture of last one high-pressure spraying at 110-120 ℃, makes an edition base dried and clean, so that coating process;
K enters the later operations such as coating:
K1. be coated with raw material:
Raw material choose import thermosensitive CTP coating fluid, equipment adopts extrusion type coating head, high-precision measuring pump and frequency converter, with Frequency Converter Control high-precision measuring pump, coating fluid is got in dispense tip, by dispense tip, by coating fluid, be coated onto uniformly on the treated Grains layer of the space of a whole page, thereby the rotating speed that utilizes Frequency Converter Control pump is controlled the thickness of coating, object is on Grains layer, to form the uniform heat-sensitive layer of one deck, thereby makes plate can make various picture and text in follow-up printing process;
K2. coating is dried:
Equipment adopts infrared heating type baking oven and temperature control system, utilizes temperature control system to control infrared heating pipe, makes baking oven remain on 114-116 ℃, to being coated with the space of a whole page of heat-sensitive glue, carries out constant temperature drying, allows heat-sensitive layer and Grains layer combine closely, and makes finished product.
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|---|---|---|---|---|
| CN106364208A (en) * | 2016-08-30 | 2017-02-01 | 中国乐凯集团有限公司 | Grain-free metal printing plate base and preparation method thereof |
| CN108374190A (en) * | 2018-01-25 | 2018-08-07 | 上海宝士嘉印刷器材有限公司 | A kind of thermosensitive type CTP editions production technologies |
| CN112048748A (en) * | 2020-09-08 | 2020-12-08 | 重庆华丰迪杰特印刷材料有限公司 | Preparation process of treatment-free printing plate for printing |
| CN112080776A (en) * | 2020-09-08 | 2020-12-15 | 重庆华丰迪杰特印刷材料有限公司 | Preparation facilities of printing with exempting from to handle version |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106364208A (en) * | 2016-08-30 | 2017-02-01 | 中国乐凯集团有限公司 | Grain-free metal printing plate base and preparation method thereof |
| CN106364208B (en) * | 2016-08-30 | 2019-12-27 | 中国乐凯集团有限公司 | Metal printing plate base without sand meshes and preparation method thereof |
| CN108374190A (en) * | 2018-01-25 | 2018-08-07 | 上海宝士嘉印刷器材有限公司 | A kind of thermosensitive type CTP editions production technologies |
| CN112048748A (en) * | 2020-09-08 | 2020-12-08 | 重庆华丰迪杰特印刷材料有限公司 | Preparation process of treatment-free printing plate for printing |
| CN112080776A (en) * | 2020-09-08 | 2020-12-15 | 重庆华丰迪杰特印刷材料有限公司 | Preparation facilities of printing with exempting from to handle version |
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