CN102529479A - Post-treatment method for improving printing evenness of electronic material - Google Patents
Post-treatment method for improving printing evenness of electronic material Download PDFInfo
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- CN102529479A CN102529479A CN2011104362807A CN201110436280A CN102529479A CN 102529479 A CN102529479 A CN 102529479A CN 2011104362807 A CN2011104362807 A CN 2011104362807A CN 201110436280 A CN201110436280 A CN 201110436280A CN 102529479 A CN102529479 A CN 102529479A
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- 238000007639 printing Methods 0.000 title claims abstract description 40
- 239000012776 electronic material Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title abstract description 23
- 238000007641 inkjet printing Methods 0.000 claims abstract description 29
- 238000001035 drying Methods 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 239000002904 solvent Substances 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000005516 engineering process Methods 0.000 claims description 17
- 238000013459 approach Methods 0.000 claims description 16
- 238000012805 post-processing Methods 0.000 claims description 16
- 239000011810 insulating material Substances 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 239000004065 semiconductor Substances 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000443 aerosol Substances 0.000 claims description 3
- 239000002322 conducting polymer Substances 0.000 claims description 3
- 229920001940 conductive polymer Polymers 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000007787 solid Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 239000000976 ink Substances 0.000 description 29
- 239000000463 material Substances 0.000 description 8
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- 239000004744 fabric Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000004587 chromatography analysis Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000002508 contact lithography Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004108 freeze drying Methods 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- AEDZKIACDBYJLQ-UHFFFAOYSA-N ethane-1,2-diol;hydrate Chemical compound O.OCCO AEDZKIACDBYJLQ-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The invention relates to a post-treatment method for improving printing evenness of an electronic material, which generally means a solvent part removing process of inhibiting the ink liquidity through cooling measures, wherein low temperature drying treatment is performed for the electronic material on a substrate by ink-jet printing to reduce or remove the solvent part in a liquid film, the temperature range of low temperature drying treatment is below -5 DEG C and the solvent part during treatment is solid or liquid. The low temperature drying treatment only removes part of the solvent in the liquid film and the proportion of the removed part of the solvent meets the standard film forming quality requirement. The post-treatment process of the invention has remarkable effect. In brief, through the low temperature drying treatment, unevenness of electronic films prepared by ink-jet printing can be effectively eliminated or reduced based on current electronic ink and printing process so that the post-treatment method of improving the printing evenness of the electronic material is beneficial to improving the quality of printed electronic products.
Description
Technical field
The present invention relates to a kind of liquid film printing shaping technology, relate in particular to a kind ofly increase electronic material ink jet printing flatness, to eliminate the seal post-processing approach of the uneven phenomenon of electronic material liquid film.
Background technology
Inkjet printing is meant under computer control ink jet to substrate and constitute the typography of pattern.Because inkjet printing need not to make a plate in advance, and shower nozzle itself does not directly contact with printable fabric in print procedure, so this method has obtained to pay close attention to widely at the printing electronic applications.Compare with the typography of other contact, inkjet printing has the advantage of following several respects in the printing electron production.
1, inkjet printing need not to come in contact the printing that just can accomplish printing ink with printable fabric.Significantly reduced of the restriction of traditional contact printing technology so on the one hand to the aspects such as bendable curvature, roughness and intensity of the substrate of undertaking the printing of; That has also avoided on the other hand possibly existing between shower nozzle and the printable fabric contacts injury or cross pollution, is more suitable for being used for the device preparation on the printable fabric of fragile or easy pollution.
2, inkjet printing need not to make a plate in advance, allows the user to utilize electronic computer that designed pattern is put into printing immediately, and can accomplish the instant design of revising.Therefore this method has been practiced thrift plate-making and has been waited required fund and the time cost of technology before the seal, and advantage is especially obvious on small lot, personalized print solution.
3, inkjet printing can be printed the very low watery printing ink of viscosity.The used performance function printing ink of printing electronic device is generally highly purified liquid phase dispersion at present; Viscosity is generally less than 40cP; The viscosity of some solution even only have about 1cP is well below the minimum requirements of most of contact printing technology to the printing ink viscosity.And inkjet printing just in time is applicable to this type low-viscosity printing ink, thereby has filled up the blank of traditional printing method in ultra-low viscosity oil China ink field.
4, with respect to the ink supply mode that edition typography is arranged, inkjet printing ink consumption amount in process of production still less helps saving material and reducing cost.Simultaneously ultralow gauging China ink consumes the minimizing that also means solvent evaporates, and toxicity is littler for the operating personnel of factory, and environment is more friendly.
5, have for the version printing for traditional, a forme can only print a kind of material usually, and the chromatography of multiple material can only realize through the chromatography of many formes, production line is compelled elongate and also forme between need accurate alignment.Inkjet printing then can need the production process of multiple working procedure chromatography to be reduced to many shower nozzles this and print simultaneously, significantly reduced technology difficulty under the unified control of computer.Particularly when the small size pattern of the fragmentary distribution of printing, the advantage of inkjet printing technology is more obvious.
Because above-mentioned advantage, inkjet printing technology had obtained significant progress at electronic manufacturing field in the more than ten years in past.Characteristics such as what be worth to stress especially is, the use that the ink jet type printing process had is simple, consume material is few, need not plate-making, the printable fabric scope is wide have determined this method to be particluarly suitable for using in the laboratory.Therefore this method becomes the most popular printing process of academia's research printing electronic device, has also obtained paying close attention to widely in industrial circle.
Yet, being stopped up by printing ink for preventing tiny nozzle, inkjet printing has harsh requirement to the character of used e-inks, must adopt low-viscosity, low surface tension and the relatively poor relatively liquid phase printing ink of volatility.Form uniform liquid film even this electron-like printing ink has been printed, in dry run, also can become uneven because of complicated physical process, the final quality of forming film of institute's printed material has been proposed stern challenge.Wherein academia's research is " coffee toroidal effect " the most widely, and promptly liquid film is forming low special appearance between senior middle school all around after the drying uniformly.For suppressing this effect; The countries in the world scientist has launched academic research widely from viscosity, surface tension, volatility, substrate surface ability, underlayer temperature, the solute microscopic pattern equal angles of printing ink; But the present application of result scope that obtains is all narrow, is difficult to tackle the problem at its root.In addition, other factors such as solvent evaporates are inhomogeneous etc. also can cause the uneven of end product, has had a strong impact on the application of film aspect electronic device.
For obtaining more smooth inkjet printing film, present modal way is in printing ink, to add a series of auxiliary elements, like surfactant, inserts, ultraviolet-curable materials etc.But these add material itself and do not possess good electrical properties usually, might further reduce the electrical property of the prepared device of inkjet printing.Though and the method for Fast Heating can improve the flatness of film in theory, might in electronic material, introduce a large amount of defectives, influence the performance of device.
Summary of the invention
To the deficiency of conventional art ink-jet printing process on the film flatness, the object of the invention is intended to propose a kind of post-processing approach, with the remarkable increase of realization liquid film viscosity, and then in dry run, keeps the smooth of film.
In order to solve above technical problem; A kind of post-processing approach that improves electronic material printing flatness of the present invention; It is characterized in that: the electronic material liquid film of inkjet printing on substrate carried out low temperature drying handle; Solvent part in minimizing or the removal liquid film, wherein low temperature drying treatment temperature scope is subzero below 5 ℃.
Further, the removal solvent part technology of general reference through cooling measure inhibition ink flow property is handled in said low temperature drying, and through reducing the ambient pressure speed up processing, said solvent part is solid-state or liquid during the processing.
Further, the partial solvent of removing in the liquid film is handled in said low temperature drying, and the partial solvent ratio of removing satisfies the standard quality of forming film.
In addition, said post-processing approach comprises that also electronic material liquid film after low temperature drying handled carries out normal temperature or heat drying is handled.
Further, said electronic material is at least one or more in metallic conductor, conducting polymer, inorganic semiconductor, organic/polymer semiconductor, insulating material of polymer and the inorganic insulating material; Said inkjet printing general reference is directly with the technology on ink jet to the substrate of electronic material, and the inkjet printing principle is at least a kind of in hot ink-jet, electrostatic inkjet, piezoelectric ink jet, electrohydrodynamics ink-jet or the aerosol ink-jet; Said substrate is at least pottery, glass, silicon chip, plastic sheeting or metal.
The beneficial effect of embodiment of the present invention is: handle through low temperature drying; Can on existing e-inks and the basis of printing technology, effectively eliminate or reduce the uneven phenomenon in the prepared electric thin of inkjet printing, help printing the raising of electronic product quality.
The specific embodiment
Below in conjunction with the specific embodiment the present invention is further described, is convenient to understand, but these relevant embodiment explanations do not constitute the restriction to the scope of application of the present invention so that the present invention innovates essence.
The present invention breaks through the deficiency of traditional inkjet technology on the film flatness, and innovation has proposed a kind of post-processing approach, with the remarkable increase of realization liquid film viscosity, and then in dry run, keeps the smooth of film.
The technical solution that realizes above-mentioned purpose is: the electronic material liquid film of inkjet printing on substrate carried out low temperature drying handles, and the solvent part in minimizing or the removal liquid film, wherein low temperature drying treatment temperature scope is subzero below 5 ℃.
The removal solvent part technology of general reference through cooling measure inhibition ink flow property is handled in this low temperature drying, and through reducing the ambient pressure speed up processing, said solvent part is solid-state or liquid during the processing.This low temperature drying is handled and is only removed the partial solvent in the liquid film, and the partial solvent ratio of removing satisfies, and to increase the material viscosity and do not influence final quality of forming film be standard.
In addition, this post-processing approach can also comprise that electronic material liquid film after low temperature drying handled carries out normal temperature or heat drying is handled.
Above-mentioned electronic material is at least one or more in metallic conductor, conducting polymer, inorganic semiconductor, organic/polymer semiconductor, insulating material of polymer and the inorganic insulating material; Above-mentioned inkjet printing general reference is directly with the technology on ink jet to the substrate of electronic material, and the inkjet printing principle is at least a kind of in hot ink-jet, electrostatic inkjet, piezoelectric ink jet, electrohydrodynamics ink-jet or the aerosol ink-jet; Above-mentioned substrate is at least pottery, glass, silicon chip, plastic sheeting or metal.
Through post-processing approach of the present invention; Especially low temperature drying is handled and can on the basis of existing e-inks and printing technology, effectively be eliminated or reduce the uneven phenomenon in the prepared electric thin of inkjet printing; Help printing the raising of electronic product quality, it is following specifically to handle embodiment.
Embodiment 1
Kapton successively is immersed in ethanol, isopropyl alcohol and the water each ultrasonic 10-30 minute, takes out the back and dries up with high pure nitrogen.With this film is flexible substrate, and printing solid content through the piezoelectric ink jet method is about 1.3% the PEDOT-PSS aqueous solution, to obtain the electrode pattern that length, width, thickness are respectively 1200 μ m, 500 μ m and 10 μ m.The temperature remains within the normal range for operating temperature in the print procedure, and movement velocity slows down as far as possible, to guarantee the quality of fluid film.
The product of accomplishing above-mentioned steps is put into freeze-dryer, under the 50-100Pa vacuum condition, sample is carried out freeze drying, the temperature of shelf is controlled between-15 ℃ to-20 ℃ in the equipment, and the reaction time is controlled in 0.5-5 minute scope.The concentration of PEDOT-PSS significantly increased after sample thawed, and solid content reaches about 35% to 50%, the then corresponding reduction of flowability.Sample is placed 120 ℃ baking oven heat drying, and it is smooth smooth until thorough oven dry that film can keep.
Embodiment 2
Cut into 3cm is long, 5cm is wide sheet glass and successively be immersed in ethanol, isopropyl alcohol and the water each ultrasonic 10-30 minute, take out the back and dries up with high pure nitrogen.With this sheet glass is substrate, adopts that solid content is about 5%, the Nano Silver ink of water-ethylene glycol mixed solvent, prints through the aerosol-type ink-jet method and obtains the electrode pattern that length, width, thickness are respectively 2000 microns, 400 microns and 12 microns.The temperature remains within the normal range for operating temperature in the print procedure, and movement velocity maintains 0.5-2 millimeter per second, to guarantee the quality of fluid film.
The product of accomplishing above-mentioned steps is put into freeze-dryer, under the 20-50Pa vacuum condition, sample is carried out freeze drying, the temperature of shelf is controlled between-20 ℃ to-30 ℃ in the equipment, and the reaction time is controlled in 2-10 minute scope.The concentration of silver-colored ink significantly increased after sample thawed, and solid content reaches about 60% to 80%, the also corresponding reduction of the flowability of ink.Sample is placed 150 ℃ baking oven heat drying, and it is smooth until thorough oven dry that film can keep.
Except that the foregoing description, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (7)
1. one kind is improved the post-processing approach that electronic material prints flatness; It is characterized in that: the electronic material liquid film of inkjet printing on substrate carried out low temperature drying handle; Solvent part in minimizing or the removal liquid film, wherein low temperature drying treatment temperature scope is subzero below 5 ℃.
2. a kind of post-processing approach that improves electronic material printing flatness according to claim 1; It is characterized in that: general reference suppresses ink flow property through cooling measure removal solvent part technology is handled in said low temperature drying; Through reducing the ambient pressure speed up processing, said solvent partly is solid-state or liquid during the processing.
3. a kind of post-processing approach that improves electronic material printing flatness according to claim 1, it is characterized in that: the partial solvent of removing in the liquid film is handled in said low temperature drying, and the partial solvent ratio of removing satisfies the standard quality of forming film.
4. a kind of post-processing approach that improves electronic material printing flatness according to claim 1 is characterized in that: said post-processing approach comprises that also the electronic material liquid film after low temperature drying handled carries out normal temperature or heat drying is handled.
5. a kind of post-processing approach that improves electronic material printing flatness according to claim 1 is characterized in that: said electronic material is at least one or more in metallic conductor, conducting polymer, inorganic semiconductor, organic/polymer semiconductor, insulating material of polymer and the inorganic insulating material.
6. a kind of post-processing approach that improves electronic material printing flatness according to claim 1; It is characterized in that: said inkjet printing general reference is directly with the technology on ink jet to the substrate of electronic material, and the inkjet printing principle is at least a kind of in hot ink-jet, electrostatic inkjet, piezoelectric ink jet, electrohydrodynamics ink-jet or the aerosol ink-jet.
7. a kind of post-processing approach that improves electronic material printing flatness according to claim 1, it is characterized in that: said substrate is at least pottery, glass, silicon chip, plastic sheeting or metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110436280.7A CN102529479B (en) | 2011-12-23 | 2011-12-23 | Post-treatment method for improving printing evenness of electronic material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110436280.7A CN102529479B (en) | 2011-12-23 | 2011-12-23 | Post-treatment method for improving printing evenness of electronic material |
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| Publication Number | Publication Date |
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| CN102529479A true CN102529479A (en) | 2012-07-04 |
| CN102529479B CN102529479B (en) | 2014-10-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104919405A (en) * | 2013-06-18 | 2015-09-16 | Lg化学株式会社 | Method of forming insulation layer and touch screen manufactured using same |
| CN106585156A (en) * | 2016-11-16 | 2017-04-26 | 华南理工大学 | Ultraviolet light curing post-processing method for printing electrode |
| CN108231277A (en) * | 2017-12-13 | 2018-06-29 | 华南理工大学 | A kind of method for reducing MOD type silver ink water film defects by adjusting ink droplet spacing |
| CN114475037A (en) * | 2021-11-22 | 2022-05-13 | 上达电子（深圳）股份有限公司 | Processing technology of freezing and solidifying printing ink product |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400106A (en) * | 2001-08-03 | 2003-03-05 | 中国科学院金属研究所 | Ink jet printing method for preparing metal film |
| US6588892B1 (en) * | 2002-01-31 | 2003-07-08 | Hewlett-Packard Development Company, L.P. | Recording ink onto print media |
| CN1573368A (en) * | 2003-06-02 | 2005-02-02 | 精工爱普生株式会社 | Method of manufacturing color filter substrate, method of manufacturing electroluminescent substrate, electro-optical device |
| JP2006281189A (en) * | 2005-04-04 | 2006-10-19 | Mikuni Denshi Kk | Ink jet coating solution and drying method |
-
2011
- 2011-12-23 CN CN201110436280.7A patent/CN102529479B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400106A (en) * | 2001-08-03 | 2003-03-05 | 中国科学院金属研究所 | Ink jet printing method for preparing metal film |
| US6588892B1 (en) * | 2002-01-31 | 2003-07-08 | Hewlett-Packard Development Company, L.P. | Recording ink onto print media |
| CN1573368A (en) * | 2003-06-02 | 2005-02-02 | 精工爱普生株式会社 | Method of manufacturing color filter substrate, method of manufacturing electroluminescent substrate, electro-optical device |
| JP2006281189A (en) * | 2005-04-04 | 2006-10-19 | Mikuni Denshi Kk | Ink jet coating solution and drying method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104919405A (en) * | 2013-06-18 | 2015-09-16 | Lg化学株式会社 | Method of forming insulation layer and touch screen manufactured using same |
| CN104919405B (en) * | 2013-06-18 | 2018-07-06 | Lg化学株式会社 | The touch screen for forming the method for insulating layer and being prepared using this method |
| CN106585156A (en) * | 2016-11-16 | 2017-04-26 | 华南理工大学 | Ultraviolet light curing post-processing method for printing electrode |
| CN106585156B (en) * | 2016-11-16 | 2019-08-20 | 华南理工大学 | A kind of ultraviolet light solidification post-processing approach to print electrode |
| CN108231277A (en) * | 2017-12-13 | 2018-06-29 | 华南理工大学 | A kind of method for reducing MOD type silver ink water film defects by adjusting ink droplet spacing |
| CN114475037A (en) * | 2021-11-22 | 2022-05-13 | 上达电子（深圳）股份有限公司 | Processing technology of freezing and solidifying printing ink product |
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| CN102529479B (en) | 2014-10-08 |
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Effective date of registration: 20211119 Address after: 215000 Jiangsu City Industrial Park, Suzhou, 398 Patentee after: SUZHOU NAFANG TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 398 Ruoshui Road, Suzhou Industrial Park, Jiangsu Province, 215125 Patentee before: SUZHOU INSTITUTE OF NANO-TECH AND NANO-BIONICS (SINANO), CHINESE ACADEMY OF SCIENCES |