CN101441414A - Production process of flexible photosensitive resin plate - Google Patents
Production process of flexible photosensitive resin plate Download PDFInfo
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- CN101441414A CN101441414A CNA2007101805188A CN200710180518A CN101441414A CN 101441414 A CN101441414 A CN 101441414A CN A2007101805188 A CNA2007101805188 A CN A2007101805188A CN 200710180518 A CN200710180518 A CN 200710180518A CN 101441414 A CN101441414 A CN 101441414A
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- photosensitive resin
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Abstract
The invention discloses a production process for a flexible photoactive resin plate. The process comprises the following steps: (1) charging and milling, (2) lower film covering, (3) cooling and reheating, (4) upper film covering, and (5) cooling and shaping. Firstly photoactive liquor, filling oil and a thermoplastic elastomer are intensively mixed in an extracting machine to form an even plate hot fused mass; the lower film of the flexible photoactive resin plate is coated on a lower roller; with the rotation of a three-roller plating machine, the hot fused mass is pressed into a plate shape which is glued to the surface of a middle roller and is stripped off the middle roller through the rotation of the upper roller, thereby obtaining the plate which is covered by the lower film and is not covered by the upper film; and after cooling and reheating, the plate is covered by the upper film and is shaped through cooling. The flexible plate produced by the process has good transparency and elasticity, flatness and high printing resistance.
Description
Technical field
The present invention relates to a kind of production technology of galley, relate in particular to a kind of production technology that is used for the resin plate of flexographic printing.
Background technology
In recent years, along with the raising to environmental requirement of the continuous development of Packaging Box industry and press, flexographic printing develops rapidly with the mode of printing of its unique high-efficiency low-pollution.Flexible photosensitive resin plate utilizes the photosensitive elastomer body to ultraviolet light or laser sensitive characteristic, exposes on the flexible photosensitive resin plate platemaking machine, makes master copy image imaging on the photosensitive elastomer body, through obtaining the forme for printing usefulness after developing.Flexible photosensitive resin plate comprises the hand engraving flexographic, the casting flexographic, and photopolymer plates etc. are dissimilar.Photopolymer plate is compared with flexographic, and amount of contraction is little, the time can not produce dilatation in plate-making, can the accurate forme of manufactured size, and dimensional stability is good, and more taller than the thin version of rubber on the plate-making precision.Flexible photosensitive resin plate is specially adapted to packages printing, and the speciality and advantage of himself arranged in this field: abundant, mass colour is consistent, in packages printing, offset printing is difficult for reaching the level of flexo; Adopt nontoxic water color ink printing, so be widely used in food and drug packaging; The medium of printability is extensive; Production cost is lower; The offset printing or the gravure equipment of the equal scale of equipment investment are few.
Flexible photosensitive resin plate divides two kinds: a kind of is the liquid version, and a kind of is the solid version, compares with the liquid version, and the solid photopolymer plate dimensional stability is good, and the space of a whole page is flexible to be subjected to temperature, humidity effect less, and range of application is wider.The flexible photosensitive resin plate of mentioning among the present invention refers to the solid flexible photosensitive resin plate.
The flexible photosensitive resin plate printing is to be the fastest a kind of mode of printing of growth rate in the typography in the whole world at present, has been widely used in all kinds of packages printings.In the U.S., the ratio that flexo in 2005 accounts for packages printing market has reached 76%, but has only 7% in China's ratio.One of its chief reason is that the flexible photosensitive resin plate plate that the printshop is used needs import, the price height, thus seriously limited the development of flexo.
Chinese patent 98117822.7 has been announced and has been passed through repeatedly the method that coating technique is produced flexible photosensitive resin plate, several years ago domestic have some producers to adopt this method production, but because product quality is lower, production run is seriously polluted, the fast development of flexo cause be can't satisfy, stopping production, half end-of-life state have been in now.
Summary of the invention
The objective of the invention is to promote the development of the flexographic printing of China, a kind of production technology of flexible photosensitive resin plate sheet material is provided in order to alleviate the in short supply of domestic flexible photosensitive resin plate sheet material.
The present invention seeks to be achieved through the following technical solutions:
The production technology of flexible photosensitive resin plate of the present invention may further comprise the steps:
(1) reinforced, mixing: that the sensitization liquid of 0.5～2 weight portion, the extending oil of 0.5～2 weight portion and the thermoplastic elastomer of 2.5～10 weight portions are added extruder barrel respectively, three kinds of materials uniform dull and stereotyped hot melt of abundant mixing formation in extruder, melting temperature is controlled at 90-170 ℃;
(2) cover film down: film under the flexible photosensitive resin plate is served as a contrast on lower roll, rotation along with three-roller calendar, hot melt is pressed into the shape of plate, be bonded in the central roll surface, by the rotation of top roll plate is come from the central roll sur-face peeling then, had been covered following film and do not cover the plate of film, when covering down film on roll temperature be 25-50 ℃, middle roll temperature is 25-50 ℃, and following roll temperature is 45-75 ℃;
(3) cooling, heating again: plate moves forward on carrying roller, is cooled to room temperature gradually, heats by heating cabinet so that eliminate the plate internal stress then again, and heating-up temperature is 100-120 ℃ again;
(4) be covered with film: by a pair of overlay film roller, will go up film and overlay on above the plate, the temperature on plate surface is controlled at 70-80 ℃ when being covered with film.
(5) cooling and shaping: plate is cooled to room temperature.
Wherein in described mixing step, die head temperature is 160-170 ℃.Before covering down film in advance under flexible photosensitive resin plate the one side of film scribble tack coat, make the surface that was not coated with tack coat be close to the surface of lower roll.
Sheet material behind the cooling and shaping is sent into warehouse for finished product after operations such as side cut, traction, cut-out, conveying and receipts version.
Sensitization liquid extending oil and thermoplastic elastomer used in the technology of the present invention all can adopt different product of the prior art.
The flexographic plate that adopts explained hereafter of the present invention to go out is transparent, good springiness, plate is smooth, press resistance rate is high.
Embodiment
Below by embodiment the present invention is done nearly step explanation, but therefore do not limit the present invention within the described scope of embodiments.
Embodiment 1
(1) reinforced, mixing
The sensitization liquid of 0.5 weight portion, the extending oil of 0.5 weight portion and the thermoplastic elastomer of 2.5 weight portions are added in the extruder by hopper respectively.By the rotation of extruder screw, the material heating, fully mixing of extruder will be sent into.Extruder is an engaging double-screw rod extruder in the same way, and totally 11 sections of the barrels of extruder, charge door are opened at first section, the 5th section and the 7th section, annotate respectively hot shortness's elastic body, extending oil and emulsion.Each section of barrel temperature can be controlled separately, and first section to the 4th section temperature is set at 140 ℃, and the 5th section to the 6th section temperature value is 100 ℃, and the temperature value of the 7th section to the 11 section and melt metering pump is 90 ℃, and die head temperature is set at 160 ℃.Three kinds of materials are fully mixing in extruder, form uniform hot melt.Hot melt outputs to dull and stereotyped die head by melt metering pump, makes load stable, forms the uniform tabular hot melt of discharging original depth.
(2) cover down film: the following film of flexible photosensitive resin plate is the PET film, has been coated with layer of substance in advance in the wherein one side of film, plays cohesive action, is called tack coat, and the PET film that has been coated with tack coat is called film under the flexible photosensitive resin plate.On lower roll, make the following film lining that coats tack coat in advance the surface that was not coated with tack coat be close to the surface of lower roll.The hot melt that comes out from die head is deposited between the central roll and lower roll of three-roller calendar, can regulate the plate that roll gap adapts to different-thickness, rotation along with three-roller calendar, hot melt is pressed into the shape of plate, be bonded in the central roll surface, by the rotation of top roll plate is come from the central roll sur-face peeling then, the plate that comes out from three-roller calendar is to have covered film down and the plate that do not cover film.After three-roller calendar, added a pair of help roll,, made plate be easy to peel off from the central roll surface by the clamping and the traction of help roll.Last roll temperature is 25 ℃, and middle roll temperature is 25 ℃, and following roll temperature is 45 ℃.
(3) cooling, heating again
Plate moves forward on carrying roller, is cooled to room temperature gradually, heats by heating cabinet so that eliminate the plate internal stress then again, and heating-up temperature is 100 ℃ again.
(4) be covered with film:, will go up film and overlay on above the plate by a pair of overlay film roller.The temperature on plate surface should be between 70 ℃ during overlay film.
(5) cooling and shaping:, need one section cooling distance to make plate be cooled to normal temperature because of plate has certain thickness.
Sheet material behind the cooling and shaping is successively through following operation:
Cut edge: cut two limits of plate, reach the width requirement of product.
Traction: traction engine is a pair of pair roller, by carry-over pinch rolls, whole version road is at the uniform velocity travelled forward under certain tension force.
Cut off: according to the plate length dimension that configures, adopt the online plate that cuts, form individual, the plate of requirement up to specification.
Carry: by conveying belt plate is transported to and receives the version place.
Receive version: certified products flexible photosensitive resin plate material is carried out hand-filling, install lining between every edition additional, paste conformity certification, after the dated relevant information, send into warehouse for finished product.
Fill 50mm thickness insulation material in the heating cabinet among the present invention, casing, the inner liner stainless steel plate.Upper box can pneumaticly lift when wearing sheet, and upper and lower casing closes during ordinary production, the junction sealing.Heating rod is installed in the casing, and the heating rod general power should reach and plate can be heated thorough level.It is high that accuracy of temperature control is wanted.
Used laminating machine among the present invention is a pair of pair roller, and roller diameter is littler than three-roller calendar roller diameter.Polish after adopting the weldless steel tube chrome-faced.The design of roller inside spin runner, the control surface temperature.Come the dancer rools distance by screw mandrel up-down adjustment top roll, can be motor-driven also can be manual.The lower roll drive, frequency control.Last film is placed on passive unreeling on the unreeling shaft with magnetic powder brake, overlays on the plate by last overlay film roller.
Used traction engine is a pair of pair roller, and roller diameter is identical with the overlay film roller, and top roll polishes after adopting the weldless steel tube chrome-faced, and lower roll is a rubber rollers.The effect of traction engine is that plate is travelled forward, and makes edition road produce tension force, is beneficial to overlay film.
Said cut-out is to realize by transverse cutting machine, in the Cutting Length scope, by being provided with, can cut random length, and can guarantee goods length precision.Cutting mode is the rotating blade cutting, and the blade incision is installed the blowing valve, so that blow away the dust that produces when cutting.Upper stage can be with the same moved further of production line during cutting.
Production line requirement three-roller calendar, laminating machine, traction engine, transverse cutting machine linear velocity in the permissible velocity scope keep synchronously; In ascending, descending speed process, can guarantee too synchronously; In the process of synchronous operation, do not need to withdraw from synchronous regime, still can be to every independent speed governing of equipment.
Embodiment 2
Repeat the process of embodiment 1, following difference arranged:
(1) in the addition step, gets sensitization liquid 2 weight portions, extending oil 1.5 weight portions, thermoplastic elastic 8 weight portions; In the mixing step, first section to the 4th section temperature of barrel is set at 170 ℃, and the 5th section to the 6th section temperature value is 120 ℃, and the temperature value of the 7th section to the 11 section and melt metering pump is 110 ℃, and die head temperature is set at 170 ℃.
(2) roll temperature is 50 ℃ on covering in the following film step, and middle roll temperature is 50 ℃, and following roll temperature is 75 ℃.
(3) cooling, again in the heating steps again heating-up temperature be 120 ℃.
(4) temperature that is covered with plate surface in the film step should be between 80 ℃.
Embodiment 3
Repeat the process of embodiment 1, following difference arranged:
(1) in the addition step, gets sensitization liquid 0.5 weight portion, extending oil 1 weight portion, thermoplastic elastic 3.5 weight portions; In the mixing step, first section to the 4th section temperature of barrel is set at 150 ℃, and the 5th section to the 6th section temperature value is 105 ℃, and the temperature value of the 7th section to the 11 section and melt metering pump is 95 ℃, and die head temperature is set at 163 ℃.
(2) roll temperature is 30 ℃ on covering in the following film step, and middle roll temperature is 30 ℃, and following roll temperature is 50 ℃.
(3) cooling, again in the heating steps again heating-up temperature be 105 ℃.
(4) temperature that is covered with plate surface in the film step should be between 72 ℃.
Embodiment 4
Repeat the process of embodiment 1, following difference arranged:
(1) in the addition step, gets sensitization liquid 1 weight portion, extending oil 0.5 weight portion, thermoplastic elastic 4.0 weight portions; In the mixing step, first section to the 4th section temperature of barrel is set at 160 ℃, and the 5th section to the 6th section temperature value is 110 ℃, and the temperature value of the 7th section to the 11 section and melt metering pump is 100 ℃, and die head temperature is set at 165 ℃.
(2) roll temperature is 35 ℃ on covering in the following film step, and middle roll temperature is 40 ℃, and following roll temperature is 55 ℃.
(3) cooling, again in the heating steps again heating-up temperature be 110 ℃.
(4) temperature that is covered with plate surface in the film step should be between 75 ℃.
Embodiment 5
Repeat the process of embodiment 1, following difference arranged:
(1) in the addition step, gets sensitization liquid 1 weight portion, extending oil 1.2 weight portions, thermoplastic elastic 6 weight portions; In the mixing step, first section to the 4th section temperature of barrel is set at 165 ℃, and the 5th section to the 6th section temperature value is 115 ℃, and the temperature value of the 7th section to the 11 section and melt metering pump is 105 ℃, and die head temperature is set at 168 ℃.
(2) roll temperature is 40 ℃ on covering in the following film step, and middle roll temperature is 35 ℃, and following roll temperature is 60 ℃.
(3) cooling, again in the heating steps again heating-up temperature be 115 ℃.
(4) temperature that is covered with plate surface in the film step should be between 78 ℃.
Embodiment 6
Repeat the process of embodiment 1, following difference arranged:
(1) in the addition step, gets sensitization liquid 1.5 weight portions, extending oil 2 weight portions, thermoplastic elastic 10 weight portions; In the mixing step, first section to the 4th section temperature of barrel is set at 168 ℃, and the 5th section to the 6th section temperature value is 113 ℃, and the temperature value of the 7th section to the 11 section and melt metering pump is 108 ℃, and die head temperature is set at 166 ℃.
(2) roll temperature is 45 ℃ on covering in the following film step, and middle roll temperature is 45 ℃, and following roll temperature is 70 ℃.
(3) cooling, again in the heating steps again heating-up temperature be 117 ℃.
(4) temperature that is covered with plate surface in the film step should be between 77 ℃.
Claims (3)
1. the production technology of a flexible photosensitive resin plate, it is characterized in that: this technology may further comprise the steps:
(1) reinforced, mixing: that the sensitization liquid of 0.5～2 weight portion, the extending oil of 0.5～2 weight portion and the thermoplastic elastomer of 2.5～10 weight portions are added extruder barrel respectively, three kinds of materials uniform dull and stereotyped hot melt of abundant mixing formation in extruder, melting temperature is controlled at 90-170 ℃;
(2) cover film down: film under the flexible photosensitive resin plate is served as a contrast on lower roll, rotation along with three-roller calendar, hot melt is pressed into the shape of plate, be bonded in the central roll surface, by the rotation of top roll plate is come from the central roll sur-face peeling then, had been covered following film and do not cover the plate of film, when covering down film on roll temperature be 25-50 ℃, middle roll temperature is 25-50 ℃, and following roll temperature is 45-75 ℃;
(3) cooling, heating again: plate moves forward on carrying roller, is cooled to room temperature gradually, heats by heating cabinet so that eliminate the plate internal stress then again, and heating-up temperature is 100-120 ℃ again;
(4) be covered with film: by a pair of overlay film roller, will go up film and overlay on above the plate, the temperature on plate surface is controlled at 70-80 ℃ when being covered with film.
(5) cooling and shaping: plate is cooled to room temperature.
2. the production technology of flexible photosensitive resin plate according to claim 1, it is characterized in that: in described mixing step, die head temperature is 160-170 ℃.
3. the production technology of flexible photosensitive resin plate according to claim 1 and 2 is characterized in that: in covering down the film step, the one side of film scribbles tack coat under flexible photosensitive resin plate in advance, makes the surface that was not coated with tack coat be close to the surface of lower roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101805188A CN101441414B (en) | 2007-11-22 | 2007-11-22 | Production process of flexible photosensitive resin plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101805188A CN101441414B (en) | 2007-11-22 | 2007-11-22 | Production process of flexible photosensitive resin plate |
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| Publication Number | Publication Date |
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| CN101441414A true CN101441414A (en) | 2009-05-27 |
| CN101441414B CN101441414B (en) | 2011-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101805188A Active CN101441414B (en) | 2007-11-22 | 2007-11-22 | Production process of flexible photosensitive resin plate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494324A (en) * | 2014-12-04 | 2015-04-08 | 管叶明 | Flexible printing resin plate and preparation method thereof |
| CN109426081A (en) * | 2017-09-05 | 2019-03-05 | 乐凯华光印刷科技有限公司 | A kind of Metal Substrate photopolymer plate production technology |
| CN109910260A (en) * | 2019-04-02 | 2019-06-21 | 湖北爱博制造有限公司 | A kind of overlay film PVC board process units |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4460675A (en) * | 1982-01-21 | 1984-07-17 | E. I. Du Pont De Nemours And Company | Process for preparing an overcoated photopolymer printing plate |
| US6773859B2 (en) * | 2001-03-06 | 2004-08-10 | E. I. Du Pont De Nemours And Company | Process for making a flexographic printing plate and a photosensitive element for use in the process |
| CN101037016A (en) * | 2006-03-14 | 2007-09-19 | 铜陵三佳科技股份有限公司 | Method and device for correcting the bending of the plastic section in the extruding forming process |
-
2007
- 2007-11-22 CN CN2007101805188A patent/CN101441414B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494324A (en) * | 2014-12-04 | 2015-04-08 | 管叶明 | Flexible printing resin plate and preparation method thereof |
| CN109426081A (en) * | 2017-09-05 | 2019-03-05 | 乐凯华光印刷科技有限公司 | A kind of Metal Substrate photopolymer plate production technology |
| CN109426081B (en) * | 2017-09-05 | 2023-03-21 | 乐凯华光印刷科技有限公司 | Production process of metal-based photosensitive resin plate |
| CN109910260A (en) * | 2019-04-02 | 2019-06-21 | 湖北爱博制造有限公司 | A kind of overlay film PVC board process units |
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| Publication number | Publication date |
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| CN101441414B (en) | 2011-11-30 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: LUCKY HUAGUANG GRAPHICS CO., LTD. Free format text: FORMER NAME: THE SECOND FILM FACTORY OF LUCKY GROUP |
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| CP01 | Change in the name or title of a patent holder |
Address after: 473003 Nanyang Station Road, Henan, No. 718 Patentee after: Lucky Huaguang Graphics Co., Ltd. Address before: 473003 Nanyang Station Road, Henan, No. 718 Patentee before: The Second Film Factory of Lucky Group |