CN103170463A - Cleaning and handling method of screen printing plate - Google Patents
Cleaning and handling method of screen printing plate Download PDFInfo
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- CN103170463A CN103170463A CN201110434175XA CN201110434175A CN103170463A CN 103170463 A CN103170463 A CN 103170463A CN 201110434175X A CN201110434175X A CN 201110434175XA CN 201110434175 A CN201110434175 A CN 201110434175A CN 103170463 A CN103170463 A CN 103170463A
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Abstract
The invention discloses a cleaning and handling method of a screen printing plate. The cleaning and handling method comprises the following steps of respectively providing the screen printing plate, first dust-free cloth and second dust-free cloth; respectively adding terpilenol and ethanol on the first dust-free cloth and the second dust-free cloth to obtain first soaking dust-free cloth and second soaking dust-free cloth; and sequentially using the first soaking dust-free cloth and the second soaking dust-free cloth to wipe the screen printing plate. Compared with the prior art, the dust-free cloth dipped with the terpilenol is used for wiping the screen printing plate in the cleaning and handling method, the terpilenol can dilute size coated on meshes, and the size can permeate through the meshes to be printed on a silicon wafer when the screen printing plate is used for printing. Therefore, the cleaning and handling method of the screen printing plate can be used for well cleaning and handling the screen printing plate, and poor printing phenomena, such as gate breaking and virtual printing can be avoided.
Description
Technical field
The present invention relates to the screen printing technique field, more particularly, relate to a kind of cleaning method of half tone.
Background technology
Solar-photovoltaic technology (Photovoltaic) is the technology that converts solar energy into electric power, and its core is the semiconductor substance that can discharge electronics.Main application form as solar-photovoltaic technology, solar-energy photo-voltaic cell has anodal and the two-layer semiconductor of negative pole, solar radiation is on semiconductor the time, the intersection generation current of positive pole and negative pole, therefore, solar-energy photo-voltaic cell have advantages of fuel free, without noxious gas emission, but also have simultaneously the characteristics such as not fragile, easy care Fast Installation and noiseless.
Serigraphy is the important procedure of preparation solar-energy photo-voltaic cell.Since the 1950's, serigraphy is applied to electric capacity, resistance, printed circuit board (PCB) and thick film integrated circuit, not only improve the efficiency of producing, and replaced expensive vacuum evaporation electrode process, opened up new route for further reducing the solar-energy photo-voltaic cell cost.Technique and the flow process of screen printing electrode are: adopt silk-screen printing technique printing silicon solar cell upper/lower electrode and back of the body electric field, sintering under suitable temperature and atmosphere, metallic melting in slurry and silicon and silicon face form firmly microalloy, thereby form good Ohmic contact with silicon, and have adhesive force firmly and good solderability.
In order to improve constantly cell piece efficient, silicon solar battery electrode is gradually to close grid and thin grid development, the viscosity of the silver slurry of printing front gate line is increasing, empty seal, disconnected grid appear when easily causing the serigraphy front gate line, to such an extent as to the silicon solar cell after sintering occur disconnected grid or and the problem such as empty seal, grid line can not be collected photo-generated carrier well, the carrier of secondary grid collection can't be transferred on main grid, reduce short circuit current, affected the conversion efficiency of cell piece.When disconnected grid that stopping up because of mesh appears in serigraphy, the processing mode of prior art is, utilizes and wipes a version cloth wiping half tone, continues after wiping to produce; If still there are the problems such as disconnected grid after wiping, utilize perching knife that the slurry on half tone is rooted out after again with wiping a version cloth wiping half tone, a print production then.But the method for the direct wiping of wiping version cloth that prior art adopts can not realize the good cleaning of half tone, thereby causes half tone still to have the problem of disconnected grid and empty seal, affects output and the yields of production line.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of cleaning method of half tone, realizes the good cleaning of half tone, avoids disconnected grid and empty seal to wait the generation of printing bad phenomenon.
In order to solve above technical problem, the invention provides a kind of cleaning method of half tone, comprise the following steps:
Half tone, the first non-dust cloth and the second non-dust cloth are provided respectively;
Add terpinol and ethanol respectively on described the first non-dust cloth and the second non-dust cloth, obtain first and soak non-dust cloth and second and soak non-dust cloth;
Utilize successively described first to soak non-dust cloth and second and soak non-dust cloth described half tone is carried out wiping.
Preferably, described half tone surface is coated with slurry.
Preferably, describedly utilize successively first to soak non-dust cloth and second and soak non-dust cloth and described half tone is carried out wiping be specially:
Step a1) utilize described first to soak non-dust cloth described half tone is carried out wiping;
Step a2) utilize described second to soak non-dust cloth to described half tone wiping, dry 10～30 seconds.
Preferably, wiping number of times described step a1) is 2～5 times.
Preferably, wiping number of times described step a2) is 2～5 times.
Preferably, be 10～20 seconds described drying time.
Preferably, the volume of described terpinol is 20～100ml.
Preferably, described terpinol is prepared as follows:
Take AEO as emulsifying agent, be to carry out the homopinol reaction under the condition of catalyst at sulfuric acid with turpentine oil, obtain terpinol after dehydration.
Preferably, the preparation method of described terpinol also comprises:
Described terpinol is carried out fractionation to be processed.
Preferably, the temperature of described homopinol reaction is 15～30 ℃.
The invention provides a kind of cleaning method of half tone, comprise the following steps: half tone, the first non-dust cloth and the second non-dust cloth are provided respectively; Add terpinol and ethanol respectively on described the first non-dust cloth and the second non-dust cloth, obtain first and soak non-dust cloth and second and soak non-dust cloth; Utilize successively described first to soak non-dust cloth and second and soak non-dust cloth described half tone is carried out wiping.Compared with prior art, utilization of the present invention is moistened with the non-dust cloth wiping half tone of terpinol, and this terpinol can dilute the slurry that is coated on mesh, and when utilizing this half tone to print, slurry can permeate mesh and be printed onto on silicon chip.Therefore, the cleaning method of half tone provided by the invention has been realized the good cleaning of half tone, avoids resolving the generation of the printing such as grid and empty seal bad phenomenon.
The specific embodiment
The below is clearly and completely described the technical scheme in the embodiment of the present invention, and obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The invention discloses a kind of cleaning method of half tone, comprise the following steps:
Half tone, the first non-dust cloth and the second non-dust cloth are provided respectively;
Add terpinol and ethanol respectively on described the first non-dust cloth and the second non-dust cloth, obtain first and soak non-dust cloth and second and soak non-dust cloth;
Utilize successively described first to soak non-dust cloth and second and soak non-dust cloth described half tone is carried out wiping.
Serigraphy is the important procedure of preparation solar-energy photo-voltaic cell, and half tone is the important component part of serigraphy simultaneously.At present, electrode of solar battery is gradually to close grid and thin grid development, the viscosity of the silver slurry of printing front gate line is increasing, empty seal, disconnected grid appear when easily causing the serigraphy front gate line, to such an extent as to the solar battery sheet after sintering usually occur disconnected grid or and empty seal problem, grid line can not be collected photo-generated carrier well, the carrier that secondary grid are collected can't be transferred on main grid, reduce short circuit current, affected the conversion efficiency of cell piece.
Half tone provided by the invention is preferably through the half tone that uses or new half tone, and more preferably the surface is coated with the half tone of slurry.Be moistened with slurry due to described through the half tone surface of using, thereby when this half tone was utilized again, the slurry viscosity was large, can bring great inconvenience to serigraphy, was prone to disconnected grid and empty seal problem, therefore, need to carry out cleaning to this half tone.
The present invention is to the material of described the first non-dust cloth and the second non-dust cloth and have no special requirements, can adopt the non-dust cloth that is formed by the two braidings of polyester fiber well known to those skilled in the art, it has soft surface, is easy to the wiping sensing surface, the characteristics such as the not defiber that rubs, good water imbibition and cleaning efficiency.
The terpinol that the present invention adopts can adopt commercial product, and there is no particular restriction for the manufacturer of described commercial terpinol and model, adopts the manufacturer of model well known to those skilled in the art to get final product.In addition, described terpinol can also be prepared as follows: take AEO as emulsifying agent, be to carry out the homopinol reaction under the condition of catalyst at sulfuric acid with turpentine oil, obtain terpinol after dehydration.Wherein, the temperature of described homopinol reaction is preferably 15～30 ℃, and more preferably 20～30 ℃, more preferably 25 ℃.In addition, utilizing the terpinol that said method prepares is thick terpinol, therefore, also preferably includes described terpinol is carried out the step that fractionation is processed, and the step by this fractionation is processed obtains smart terpinol.
In addition, there is no particular restriction for the terpinol that adds on the first non-dust cloth and the second non-dust cloth and the volume of ethanol in the present invention, thereby namely described the first non-dust cloth and the wetting purpose that half tone is carried out wiping that reaches of the second non-dust cloth can be got final product.The volume of described terpinol is preferably 20～100ml, more preferably 30～70ml, more preferably 50ml; The volume of described ethanol is preferably 20～100ml, more preferably 30～70ml, more preferably 50ml.
According to the present invention, describedly utilize successively described first to soak non-dust cloth and second and soak non-dust cloth and described half tone is carried out wiping be specially: step a1) to utilize described first to soak non-dust cloth described half tone is carried out wiping; Step a2) utilizing described second, to soak non-dust cloth dry after to described half tone wiping.Wherein, described step a1) wiping number of times is preferably 2～5 times, and more preferably 3～5 times, more preferably 3～4 times; Described step a2) wiping number of times is preferably 2～5 times, and more preferably 3～5 times, more preferably 3～4 times.At above-mentioned steps a1) in, can also place after wiping 20～40 minutes, the described placement purpose of 20～40 minutes is, half tone is soaked by terpinol, to block the slurry dilution of mesh with terpinol, and make slurry can see through mesh, therefore, the preferred placement 25～35 minutes, more preferably 30 minutes.In addition, due to the requirement of solar cell slice assembly line to the time, therefore, utilize first to soak non-dust cloth and can also need not after to described half tone wiping standingly, directly be for further processing after wiping, guaranteed the production time of solar battery sheet.Step a2) in, described drying preferably adopts air-dry form, and the time of described drying is preferably 10～30 seconds, and more preferably 10～20 seconds, more preferably 15 seconds.
In sum, utilization of the present invention is moistened with the non-dust cloth wiping half tone of terpinol, and this terpinol can dilute the slurry that is coated on mesh, and when again utilizing this half tone to print, slurry can permeate mesh and be printed onto on silicon chip.Therefore, the cleaning method of half tone provided by the invention has been realized the good cleaning of half tone, avoids resolving the generation of the printing such as grid and empty seal bad phenomenon.
Half tone through above-mentioned cleaning can carry out the secondary use, also can before being installed, new half tone carry out cleaning to new half tone, the generation of pre-anti-breaking grid and empty seal, extended the service life of half tone, reduced the supplies consumption in workshop, reduce the number of efficient cell piece on the low side, improve the whole efficiency of cell piece.Utilize the half tone of above-mentioned cleaning method cleaning can produce continuously 5 hours at least.
In order to further illustrate technical scheme of the present invention, below in conjunction with embodiment, the preferred embodiment of the invention is described, but should be appreciated that these describe just as further illustrating the features and advantages of the present invention, rather than limiting to the claimed invention.
Following examples all utilize production line to become product to 10000 solar battery sheets with comparative example, and the chemical reagent that the embodiment of the present invention and comparative example adopt is commercial.
Embodiment 1
The first non-dust cloth and the second non-dust cloth are provided respectively;
Add 50ml terpinol and 50ml ethanol respectively on described the first non-dust cloth and the second non-dust cloth, obtain first and soak non-dust cloth and second and soak non-dust cloth;
Utilize production line to carry out the production of solar battery sheet, when volume production to 6834 slice, disconnected grid phenomenon occurs, utilize described first to soak non-dust cloth described half tone is carried out wiping; Then utilize described second to soak non-dust cloth to described half tone wiping, air-dry 15 seconds, 30 seconds consuming time, until disconnected grid phenomenon does not appear in 10000 all production end, be 30 seconds the downtime that the wiping half tone causes;
In the solar battery sheet production process, due to broken 39 of external force factor, obtain 9961 solar battery sheets.
9961 solar battery sheets to the present embodiment preparation carry out the outward appearance observation, and because disconnected grid are 5 with the defective work that empty seal causes, shared disqualification rate is 0.050%.
9961 solar battery sheets to the present embodiment preparation sort testing efficiency, and average efficiency is 16.54%, and efficient is 35 lower than 15% sheet number, and proportion is 0.0.351%.
Embodiment 2
New half tone, the first non-dust cloth and the second non-dust cloth are provided respectively;
Add 50ml terpinol and 50ml ethanol respectively on described the first non-dust cloth and the second non-dust cloth, obtain first and soak non-dust cloth and second and soak non-dust cloth;
Utilize first to soak non-dust cloth to new half tone wiping 10 seconds, placed 5 minutes, the equipment that is loaded on uses, and after using 5.9 hours on production line, empty seal occurs once, after wiping to the production of completing 10000 solar battery sheets.
Comparative example 1
Utilize production line to carry out the production of solar battery sheet, when volume production to 6852 slice, disconnected grid phenomenon occurs, utilize dried non-dust cloth wiping half tone, 5 seconds consuming time;
Production line disconnected grid phenomenon occurs again when volume production to 7879 slice, again utilize dried non-dust cloth wiping half tone, 5 seconds consuming time;
Production line empty seal phenomenon occurs, wiping half tone, 15 seconds consuming time when volume production to 7905 slice;
Production line disconnected grid phenomenon occurs when volume production to 8664 slice, utilize dried non-dust cloth wiping half tone, 5 seconds consuming time;
Production line disconnected grid phenomenon occurs when volume production to 9149 slice, utilize dried non-dust cloth wiping half tone, 5 seconds consuming time;
Production line disconnected grid phenomenon occurs when volume production to 9187 slice, utilize dried non-dust cloth wiping half tone, 15 seconds consuming time; Be 50 seconds the downtime that the wiping half tone causes;
In the solar battery sheet production process, due to broken 48 of external force factor, obtain 9952 solar battery sheets.
9952 solar battery sheets to the preparation of this comparative example carry out the outward appearance observation, and because disconnected grid are 36 with the defective work that empty seal causes, shared disqualification rate is 0.583%.
9952 solar battery sheets to the preparation of this comparative example sort testing efficiency, and average efficiency is 16.51%, and efficient is 58 lower than 15% sheet number, and proportion is 0.583%.
Comparative example 2
New half tone is provided;
New half tone is directly installed on equipment uses, after using 4.2 hours on production line, disconnected grid and empty seal phenomenon occur one by one, when print 10000, during 5 disconnected grid appear, 3 empty printing.
Can find out from above-described embodiment and comparative example, this utilization is moistened with the non-dust cloth wiping half tone of terpinol, has realized the good cleaning of half tone, avoids resolving the generation of the printing such as grid and empty seal bad phenomenon.Experimental result shows, the half tone after the cleaning method of half tone provided by the invention is processed can be produced 5 hours at least continuously.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, realization in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. the cleaning method of a half tone comprises the following steps:
Half tone, the first non-dust cloth and the second non-dust cloth are provided respectively;
Add terpinol and ethanol respectively on described the first non-dust cloth and the second non-dust cloth, obtain first and soak non-dust cloth and second and soak non-dust cloth;
Utilize successively described first to soak non-dust cloth and second and soak non-dust cloth described half tone is carried out wiping.
2. cleaning method according to claim 1, is characterized in that, described half tone surface is coated with slurry.
3. cleaning method according to claim 1, is characterized in that, describedly utilizes successively first to soak non-dust cloth and second and soak non-dust cloth and described half tone is carried out wiping be specially:
Step a1) utilize described first to soak non-dust cloth described half tone is carried out wiping;
Step a2) utilize described second to soak non-dust cloth to described half tone wiping, dry 10～30 seconds.
4. cleaning method according to claim 3, is characterized in that, described step a1) the wiping number of times be 2～5 times.
5. cleaning method according to claim 3, is characterized in that, described step a2) the wiping number of times be 2～5 times.
6. cleaning method according to claim 3, is characterized in that, be 10～20 seconds described drying time.
7. cleaning method according to claim 1, is characterized in that, the volume of described terpinol is 20～100ml.
8. cleaning method according to claim 1, is characterized in that, described terpinol is prepared as follows:
Take AEO as emulsifying agent, be to carry out the homopinol reaction under the condition of catalyst at sulfuric acid with turpentine oil, obtain terpinol after dehydration.
9. cleaning method according to claim 8, is characterized in that, the preparation method of described terpinol also comprises:
Described terpinol is carried out fractionation to be processed.
10. cleaning method according to claim 8, is characterized in that, the temperature of described homopinol reaction is 15～30 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110434175.XA CN103170463B (en) | 2011-12-21 | 2011-12-21 | A kind of cleaning method of half tone |
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| CN201110434175.XA CN103170463B (en) | 2011-12-21 | 2011-12-21 | A kind of cleaning method of half tone |
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| CN103170463B CN103170463B (en) | 2015-09-30 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104624566A (en) * | 2013-11-15 | 2015-05-20 | 浙江鸿禧能源股份有限公司 | Method for wiping screen printing plate in silk-screen printing |
| CN110126459A (en) * | 2019-05-24 | 2019-08-16 | 江苏润阳悦达光伏科技有限公司 | Silkscreen process halftone wiping method |
| CN113458048A (en) * | 2021-07-05 | 2021-10-01 | 合肥江丰电子材料有限公司 | Cleaning method for surface of LCD target material |
| CN114312005A (en) * | 2021-12-16 | 2022-04-12 | 中节能太阳能科技（镇江）有限公司 | Accurate automatic screen printing plate wiping device |
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| CN110126459A (en) * | 2019-05-24 | 2019-08-16 | 江苏润阳悦达光伏科技有限公司 | Silkscreen process halftone wiping method |
| CN113458048A (en) * | 2021-07-05 | 2021-10-01 | 合肥江丰电子材料有限公司 | Cleaning method for surface of LCD target material |
| CN114312005A (en) * | 2021-12-16 | 2022-04-12 | 中节能太阳能科技（镇江）有限公司 | Accurate automatic screen printing plate wiping device |
| CN114312005B (en) * | 2021-12-16 | 2024-05-14 | 中节能太阳能科技（镇江）有限公司 | Accurate automatic screen printing plate device of wiping |
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| CN103170463B (en) | 2015-09-30 |
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Address after: 214443 No. 1011 Chengcheng Road, Shengang Town, Jiangyin City, Wuxi City, Jiangsu Province Patentee after: In building materials jetion science and Technology Co Ltd Address before: 214443 No. 1011 Chengcheng Road, Shengang Town, Jiangyin City, Wuxi City, Jiangsu Province Patentee before: China National Building Materials Group Corporation Jetion Solar (China) Co., Ltd. |