CN105269995A - Smooth mirror surface processing technology based on composite screen printing plate - Google Patents
Smooth mirror surface processing technology based on composite screen printing plate Download PDFInfo
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- CN105269995A CN105269995A CN201510581791.6A CN201510581791A CN105269995A CN 105269995 A CN105269995 A CN 105269995A CN 201510581791 A CN201510581791 A CN 201510581791A CN 105269995 A CN105269995 A CN 105269995A
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Abstract
The invention discloses a smooth mirror surface processing technology based on a composite screen printing plate. The smooth mirror surface processing technology comprises the steps of screen pulling, that is, the composite screen printing plate is manufactured from a screen plate, a silk screen and a hot melt adhesive film; pretreatment, that is, the composite screen printing plate is cleaned, and grease and impurities on the surface of the composite screen printing plate are removed; distribution and film attaching, that is, sensitive emulsion and a release attaching film are attached to the composite screen printing plate in sequence; plate burning, that is, a pattern is transferred to the composite screen printing plate from a film through ultraviolet irradiation; and developing, that is, non-cured sensitive emulsion on the composite screen printing plate is removed, and a finished product is obtained. By means of the smooth mirror surface processing technology based on the composite screen printing plate, the flatness of the printing surface of the composite screen printing plate is greatly improved, pulp can be effectively prevented from overflowing, the pulp is saved, lines can be printed thinner and straighter, and therefore a better printing silver line height-width ratio is obtained, the photoelectric conversion efficiency of products is improved, and the product competitiveness is improved.
Description
Technical field
The present invention relates to the printed element such as solar battery sheet, high-accuracy electronic devices and components field, particularly relate to a kind of level and smooth mirror process technique based on composite halftone.
Background technology
Along with advancing fast of economy, the consumption of the energy is also increasing, the non-renewable energy resources storage capacitys such as coal, oil, electric power reduce day by day, energy problem becomes the significant problem of restriction international community economic development day by day, this impels people constantly to explore new forms of energy, and wherein the research of solar energy occupies critical role.Solar cell have also been obtained in recent years as one of the core technology of solar energy research and develops fast, the transformation efficiency improving solar cell is the main study subject of current solar cell, except cell substrate Material selec-tion, the improvement of substrate manufacture craft etc. require, take suitable printed battery method also can improve the transformation efficiency of solar cell.Cell piece photoelectric conversion efficiency is relevant with the silver-colored line shading-area that silicon chip prints, however normal half tone technique due to the out-of-flatness of printing surface can cause slurry in printing process with the height of anastomose rise and fall produce excessive.Therefore how silver-colored line is printed thinner, reduce the excessive research direction being accurate half tone and making of unnecessary slurry.
In traditional screen painting processing procedure, Problems existing comprises:
1, when grenadine weaves, graticule is staggered anastomose, and during coating emulsion, emulsion is filled in mesh can become with anastomose shape the shape that just rises and falls; 2, printing surface out-of-flatness, slurry because emulsion is in the out-of-flatness of printing surface, can produces excessive along with the fluctuating shape of opening part, causes print lines burr or widen in printing process, waste slurry; 3, because printing is widened, cause printing lines to subside, affect printing height; 4, finally cell piece conversion efficiency is affected;
So traditional print production technique cannot meet the growing demand of user, be unfavorable for the extensive use of accurate plate-making.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of level and smooth mirror process technique based on composite halftone, have that unfailing performance is high, registration, photoelectric transformation efficiency advantages of higher, simultaneously the printed element such as solar battery sheet, high-accuracy electronic devices and components application and universal on have market prospects widely.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is:
There is provided a kind of level and smooth mirror process technique based on composite halftone, its step comprises:
(1) draw in the net: utilize half tone, silk screen and hot melt adhesive film to make composite halftone;
(2) pretreatment: composite halftone is cleaned, grease, the impurity on removing composite halftone surface;
(3) pad pasting is coated with: be coated with in order on composite halftone and paste emulsion and release cling film;
(4) printing down: utilize Ultraviolet radiation to make figure be transferred to composite halftone from the film;
(5) develop: remove emulsion uncured on composite halftone, complete finished product;
Wherein, the step of described coating pad pasting comprises:
(3.1) emulsion is coated uniformly on pretreated composite halftone, according to the temperature and time of the type set baking oven of emulsion; After emulsion coats, composite halftone is put into baking oven and toasts; When carrying out second time coating operations after emulsion drying, repeat coating action;
(3.2) when being coated with the last time, select surfacing to be coated with by demand, and before surfacing dry solidification, pull out through dedusting and the release cling film after destaticing from mirror process machine, be positioned over the front of composite halftone printing surface; Utilize mirror process machine that release cling film is impressed on the printing surface of composite halftone, and nip drum make the emulsion of release cling film and printing surface fully sturdy repeatedly; Composite halftone is put in the baking oven presetting temperature and time and toasts; Take out composite halftone, the corner along release cling film is opened, and judges whether the surface of surfacing completes drying; If take off the quick silent of UF membrane in membrane process, show that surfacing is fully dry; If take off in membrane process and have adhesion or abnormal sound between release cling film and surfacing, then surfacing is thoroughly not dry, needs to re-start baking; When surfacing drying is thorough, the composite halftone separating release cling film is put into baking oven again and toasts, its baking condition is identical with the baking condition of dry sensation X-ray emulsion X, obtains the minute surface half tone that printing surface is straight after having toasted.
In a preferred embodiment of the present invention, described surfacing comprise in emulsion, resin or half tone surface peening liquid one or more.
In a preferred embodiment of the present invention, described release cling film comprises mould release membrance, release liners and separation cloth.
In a preferred embodiment of the present invention, described in the concrete steps of drawing in the net comprise:
(1.1) on the first half tone, be stained with the first silk screen, the hot melt adhesive film returning font structure of hollow be put on the first silk screen, catch be placed on the centre position of the first silk screen, then the second silk screen is put on hot melt adhesive film; According to the material character of hot melt adhesive film, fuse machine sets time and the temperature of heating, then the first half tone is put into fuse machine heat, the first silk screen and the second silk screen are combined with each other;
(1.2) the first half tone is taken out, cut off the part with the second silk screen compound in the first silk screen, be put in by the second screen frame in the frame machine of top, the first half tone is put in the second screen frame top, second screen frame drives up top to make the first silk screen obtain tension force by top frame machine, and by the second screen frame and the bonding of the first silk screen;
(1.3) take off the first half tone, the second screen frame and the first half tone are separated, obtain composite halftone.
In a preferred embodiment of the present invention, described pretreated concrete steps comprise: the cleaning fluid being alkalescence pH value is poured on composite halftone surface, and cleans frictioning face and the printing surface of composite halftone in the mode of drawing a circle with sponge; With giant, dirty, the grease on composite halftone surface and residual solvent are cleaned up; By uniform for water sprinkle on the surface of composite halftone, if when the moisture film on the printing surface of composite halftone is the plane of smooth even, then composite halftone cleans up, if the moisture film on the printing surface of composite halftone uneven or have dirty protruding time, then again clean; After cleaning up, according to the material character of composite halftone, the temperature and time of setting baking box, and composite halftone is put into baking oven toast, until the dry tack free of composite halftone.
In a preferred embodiment of the present invention, the concrete steps of described printing down comprise: a slice is preset the printing surface that figuratum film egative film is put in minute surface half tone, printer injects ultraviolet light source from the printing surface direction of minute surface half tone; Black part on film egative film blocks ultraviolet, and making minute surface half tone does not have the emulsion in the region of Ultraviolet radiation cannot solidify; Ultraviolet is irradiated to emulsion from the hyalomere office of film egative film, makes emulsion produce solidification, by the Graphic transitions on film egative film on minute surface half tone.
In a preferred embodiment of the present invention, described film egative film comprises the PET egative film that is coated with silver halide or is coated with the glass negative of silver halide and is coated with the glass negative of chromium.
In a preferred embodiment of the present invention, the concrete steps of described development comprise: spray with the surface of clear water to minute surface half tone, are dissolved by uncured emulsion and rinse out; With high pressure water washing minute surface half tone, on minute surface half tone, form multiple opening while clean, complete finished product.
The invention has the beneficial effects as follows: the flatness of the printing surface of half tone is greatly improved, can effectively prevent the excessive of slurry, save slurry, and lines can print more carefully, more straight, thus obtain better printing silver line depth-width ratio, improve product photoelectric transformation efficiency, improving product competitiveness.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of described composite halftone of the present invention.
Detailed description of the invention
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the embodiment of the present invention comprises:
Based on a level and smooth mirror process technique for composite halftone, its step comprises:
(1) draw in the net: utilize half tone, silk screen and hot melt adhesive film to make composite halftone, concrete steps comprise:
(1.1) first half tones 1 are stained with the first silk screen 2, the length of described first half tone is 55 centimetres, width is 55 centimetres, hot melt adhesive film is put on the first silk screen 2, described hot melt adhesive film is time font structure of hollow, catch 3 is placed on the centre position of the first silk screen 2, again the second silk screen 4 is put on described hot melt adhesive film, the length of described second silk screen 4 is 20-30 centimetre, width is 20-30 centimetre, described first half tone 1 is put into fuse machine heat, the heating-up temperature of fuse machine setting is 175 ° of C, heat time is 100 seconds, described first silk screen 2 and described second silk screen 4 are combined with each other,
(1.2) described first half tone 1 is taken out; with blade cut off in described first silk screen 2 with the part of described second silk screen 4 compound within the first silk screen 4; complete the recombination process of silk screen; make the second silk screen 4 be compound on described first silk screen 2, wherein baffle plate 3 protects described second silk screen 4 to make it does not cut bad by blade;
(1.3) the second screen frame 5 is put between two parties in the frame machine of top; described first half tone 1 is put in frame machine top, described top; guarantee that described second screen frame 5 is positioned at described first half tone 1 bottom and puts between two parties; described top frame machine drives described second screen frame 5 up to move; after touching described first half tone 1, apply pressure to described first half tone 1, drive described first silk screen 2 up to move; until described first silk screen 2 obtains required tension force, and described second screen frame 5 and described first silk screen 2 are bonded;
(1.4) take off described first half tone 1, cut and described second screen frame 5 is separated with described first half tone 1, obtain composite halftone.
(2) pretreatment: clean composite halftone, grease, the impurity on removing composite halftone surface, specifically comprise: stainless steel special cleaning is poured on half tone surface, and cleaning fluid pH value is alkalescence.Use sponge to clean half tone frictioning face and each 1 minute of printing surface in the mode of drawing a circle, then use giant that dirty for half tone surface, grease and residual solvent are cleaned up.Then mild current sprinkle half tone surface is used, observation printing surface moisture film situation.If become moisture film to be homogeneous plane; represent half tone and clean up; If become moisture film uneven or have dirty projection, then return and again clean.The half tone cleaned up is put in 38-42 ° of C baking oven and toasts 20 minutes, treat that half tone surface is fully dry.
(3) pad pasting is coated with: be coated with in order on composite halftone and paste emulsion and release cling film, concrete steps comprise:
(3.1) emulsion is coated uniformly on pretreated composite halftone, according to the temperature and time of the type set baking oven of emulsion; After emulsion coats, composite halftone is put into baking oven and toasts; When carrying out second time coating operations after emulsion drying, repeat coating action.Such as: use a slot scraping that emulsion is coated on half tone, each painting process thickens 1-2um, after often completing one painting process, half tone is put into 35-40 ° of C baking oven baking 8 minutes, after the abundant drying of emulsion, carry out second time coating operations again, repeat above-mentioned action until emulsion thickness reaches customer requirement.
(3.2) when being coated with the last time, surfacing is selected to be coated with by demand, and before surfacing dry solidification, pull out through dedusting and the release cling film after destaticing from mirror process machine, be positioned over the front of composite halftone printing surface, wherein, described surfacing comprise in emulsion, resin or half tone surface peening liquid one or more, to meet the different needs, described release cling film comprises mould release membrance, release liners and separation cloth; Utilize mirror process machine that release cling film is impressed on the printing surface of composite halftone, and nip drum make the surfacing of release cling film and printing surface fully sturdy repeatedly; Composite halftone is put in the baking oven presetting temperature and time and toasts; Take out composite halftone, the corner along release cling film is opened, and judges whether the surface of surfacing completes drying; If take off the quick silent of UF membrane in membrane process, show that surfacing is fully dry; If take off in membrane process and have adhesion or abnormal sound between release cling film and surfacing, then surfacing is thoroughly not dry, needs to re-start baking; When surfacing is thoroughly dry, immediately the composite halftone separating release cling film is put into baking oven again and toast, its baking condition is identical with the baking condition of dry sensation X-ray emulsion X, obtains the minute surface half tone that printing surface is straight after having toasted; Such as: after completing the coating of last emulsion, before the non-dry solidification of emulsion, mould release membrance is pulled out from mirror process machine, mould release membrance thickness is 75-150um.Mould release membrance through equipment dedusting, destatic process, be positioned over side in face of screen painting, use slot scraping or roller that mould release membrance is impressed in screen painting face and nip drum 3-6 time repeatedly, make mould release membrance and printing surface emulsion fully sturdy, then be put in 35-40 ° of C baking oven and toast 10 minutes, after the abundant drying of emulsion, take out half tone, open gently along mould release membrance corner, observe emulsion surface and whether complete drying.If take off the quick silent of UF membrane in membrane process, show that emulsion is fully dry; If take off UF membrane difficulty in membrane process and have abnormal sound, show that emulsion is thoroughly not dry, need to carry out repeating baking.After emulsion finish-drying, mould release membrance is separated from half tone surface, obtains the minute surface half tone that printing surface surface is straight.
(4) printing down: utilize Ultraviolet radiation to make figure be transferred to composite halftone from the film, specifically comprise: the film egative film by with predetermined pattern is put in screen painting face, this film can be PET and sprays silver halide, or glass-coating silver halide, or glass-coating crome metal generated.Printer injects ultraviolet light source from direction, screen painting face, and via the stop of film egative film, on film egative film, black part blocks light source irradiation, and in this region, emulsion cannot solidify; On film egative film, transparent part is produced solidification by after Ultraviolet radiation, complete figure is transferred to half tone process from the film, form half tone by this, described film egative film comprises the PET egative film that is coated with silver halide or is coated with the glass negative of silver halide and is coated with the glass negative of chromium.
(5) develop: remove uncured emulsion and impurity on composite halftone, complete finished product, concrete steps comprise: use clear water fully to spray half tone surface, after uncured emulsion is sufficiently solubilized, half tone is rinsed with the water with pressure, guarantee half tone does not leave uncured emulsion, on half tone, form multiple opening simultaneously.Half tone washing time is 3 minutes, and water source distance is 10-15cm, and flushing pressure is 2.5-4kg/cm2.
Print result contrasts:
Use identical parameters to make a normal process half tone and a mirror process technique half tone respectively, contrast print result, show that mirror process technique half tone track bar is widened less, silver-colored line printing height is higher, can obtain better printing depth-width ratio.
Experiment one:
Grenadine: 325 order 16um wire diameters;
Thickness: 14um;
Live width: 33um;
Tension force: 25N;
Experiment two:
Grenadine: 360 order 16um wire diameters;
Thickness: 15um;
Live width: 35um;
Tension force: 25N;
The beneficial effect of a kind of level and smooth mirror process technique based on composite halftone of the present invention is:
1, comparatively traditional handicraft, the invention enables the flatness of printing surface to promote 1-5um; 2, slurry printing excessive little, widen little, save slurry; 3, print lines glacing flatness higher, image restoring is more clear; 4, lines height is printed higher; 5, print product electricity conversion is promoted, improving product competitiveness.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (8)
1., based on a level and smooth mirror process technique for composite halftone, it is characterized in that, step comprises:
(1) draw in the net: utilize half tone, silk screen and hot melt adhesive film to make composite halftone;
(2) pretreatment: composite halftone is cleaned, grease, the impurity on removing composite halftone surface;
(3) pad pasting is coated with: be coated with in order on composite halftone and paste emulsion and release cling film;
(4) printing down: utilize Ultraviolet radiation to make figure be transferred to composite halftone from the film;
(5) develop: remove emulsion uncured on composite halftone, complete finished product;
Wherein, the step of described coating pad pasting comprises:
(3.1) emulsion is coated uniformly on pretreated composite halftone, according to the temperature and time of the type set baking oven of emulsion; After emulsion coats, composite halftone is put into baking oven and toasts; When carrying out second time coating operations after emulsion drying, repeat coating action;
(3.2) when being coated with the last time, select surfacing to be coated with by demand, and before surfacing dry solidification, pull out through dedusting and the release cling film after destaticing from mirror process machine, be positioned over the front of composite halftone printing surface; Utilize mirror process machine that release cling film is impressed on the printing surface of composite halftone, and nip drum make the emulsion of release cling film and printing surface fully sturdy repeatedly; Composite halftone is put in the baking oven presetting temperature and time and toasts; Take out composite halftone, the corner along release cling film is opened, and judges whether the surface of surfacing completes drying; If take off the quick silent of UF membrane in membrane process, show that surfacing is fully dry; If take off in membrane process and have adhesion or abnormal sound between release cling film and surfacing, then surfacing is thoroughly not dry, needs to re-start baking; When surfacing drying is thorough, the composite halftone separating release cling film is put into baking oven again and toasts, its baking condition is identical with the baking condition of dry sensation X-ray emulsion X, obtains the minute surface half tone that printing surface is straight after having toasted.
2. a kind of level and smooth mirror process technique based on composite halftone according to claim 1, is characterized in that, described surfacing comprise in emulsion, resin or half tone surface peening liquid one or more.
3. a kind of level and smooth mirror process technique based on composite halftone according to claim 1, it is characterized in that, described release cling film comprises mould release membrance, release liners and separation cloth.
4. a kind of level and smooth mirror process technique based on composite halftone according to claim 1, is characterized in that, described in the concrete steps of drawing in the net comprise:
(1.1) on the first half tone, be stained with the first silk screen, the hot melt adhesive film returning font structure of hollow be put on the first silk screen, catch be placed on the centre position of the first silk screen, then the second silk screen is put on hot melt adhesive film; According to the material character of hot melt adhesive film, fuse machine sets time and the temperature of heating, then the first half tone is put into fuse machine heat, the first silk screen and the second silk screen are combined with each other;
(1.2) the first half tone is taken out, cut off the part with the second silk screen compound in the first silk screen, be put in by the second screen frame in the frame machine of top, the first half tone is put in the second screen frame top, second screen frame drives up top to make the first silk screen obtain tension force by top frame machine, and by the second screen frame and the bonding of the first silk screen;
(1.3) take off the first half tone, the second screen frame and the first half tone are separated, obtain composite halftone.
5. a kind of level and smooth mirror process technique based on composite halftone according to claim 1, it is characterized in that, described pretreated concrete steps comprise: the cleaning fluid being alkalescence pH value is poured on composite halftone surface, and cleans frictioning face and the printing surface of composite halftone in the mode of drawing a circle with sponge; With giant, dirty, the grease on composite halftone surface and residual solvent are cleaned up; By uniform for water sprinkle on the surface of composite halftone, if when the moisture film on the printing surface of composite halftone is the plane of smooth even, then composite halftone cleans up, if the moisture film on the printing surface of composite halftone uneven or have dirty protruding time, then again clean; After cleaning up, according to the material character of composite halftone, the temperature and time of setting baking box, and composite halftone is put into baking oven toast, until the dry tack free of composite halftone.
6. a kind of level and smooth mirror process technique based on composite halftone according to claim 1, it is characterized in that, the concrete steps of described printing down comprise: a slice is preset the printing surface that figuratum film egative film is put in minute surface half tone, printer injects ultraviolet light source from the printing surface direction of minute surface half tone; Black part on film egative film blocks ultraviolet, and making minute surface half tone does not have the emulsion in the region of Ultraviolet radiation cannot solidify; Ultraviolet is irradiated to emulsion from the hyalomere office of film egative film, makes emulsion produce solidification, by the Graphic transitions on film egative film on minute surface half tone.
7. a kind of level and smooth mirror process technique based on composite halftone according to claim 6, is characterized in that, described film egative film comprises the PET egative film that is coated with silver halide or is coated with the glass negative of silver halide and is coated with the glass negative of chromium.
8. a kind of level and smooth mirror process technique based on composite halftone according to claim 1, it is characterized in that, the concrete steps of described development comprise: spray with the surface of clear water to minute surface half tone, are dissolved by uncured emulsion and rinse out; With high pressure water washing minute surface half tone, on minute surface half tone, form multiple opening while clean, complete finished product.
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| CN106079861A (en) * | 2016-08-22 | 2016-11-09 | 昆山良品丝印器材有限公司 | Crystalline silicon printing cover side half tone and aligning structure thereof |
| CN106494074A (en) * | 2016-09-30 | 2017-03-15 | 卫巍 | A kind of preparation method of screen printing plate |
| CN107584858A (en) * | 2017-09-19 | 2018-01-16 | 村上精密制版（昆山）有限公司 | A kind of half tone manufacturing process being exposed using collotype |
| CN108407433A (en) * | 2018-04-24 | 2018-08-17 | 昆山赛阳电子材料有限公司 | A kind of compound technique of throwing the net of halftone no-station pole canopy |
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| CN109203638A (en) * | 2018-08-06 | 2019-01-15 | 田菱精密制版（深圳）有限公司 | A kind of technological process for coating significantly improving silk-screen halftone film surface planarization |
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| CN106494074B (en) * | 2016-09-30 | 2021-12-10 | 卫巍 | Preparation method of screen printing plate |
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| CN108615791A (en) * | 2018-04-20 | 2018-10-02 | 昆山乐邦印刷器材设备有限公司 | A kind of ladder film thickness halftone and preparation method thereof |
| CN108615791B (en) * | 2018-04-20 | 2020-01-03 | 昆山乐邦印刷器材设备有限公司 | Step film thickness screen printing plate and preparation method thereof |
| CN108407433A (en) * | 2018-04-24 | 2018-08-17 | 昆山赛阳电子材料有限公司 | A kind of compound technique of throwing the net of halftone no-station pole canopy |
| CN109203638A (en) * | 2018-08-06 | 2019-01-15 | 田菱精密制版（深圳）有限公司 | A kind of technological process for coating significantly improving silk-screen halftone film surface planarization |
| CN110757941A (en) * | 2019-10-25 | 2020-02-07 | 杭州友成电子有限公司 | Lean screen printing plate manufacturing process |
| CN111572170A (en) * | 2020-05-22 | 2020-08-25 | 常州亚龙电子科技有限公司 | Plate making process of silk screen printing plate and screen printing plate thereof |
| CN111766763A (en) * | 2020-06-19 | 2020-10-13 | 沃苏特电子科技（苏州）有限公司 | Film preparation process |
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Application publication date: 20160127 |