CN101678389B - Application head cleaning method, paste application method, and plasma display production method - Google Patents
Application head cleaning method, paste application method, and plasma display production method Download PDFInfo
- Publication number
- CN101678389B CN101678389B CN2008800175780A CN200880017578A CN101678389B CN 101678389 B CN101678389 B CN 101678389B CN 2008800175780 A CN2008800175780 A CN 2008800175780A CN 200880017578 A CN200880017578 A CN 200880017578A CN 101678389 B CN101678389 B CN 101678389B
- Authority
- CN
- China
- Prior art keywords
- application head
- outlet
- adhesive tape
- slurry
- coating liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000000034 method Methods 0.000 title claims abstract description 82
- 238000004140 cleaning Methods 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 239000002390 adhesive tape Substances 0.000 claims abstract description 79
- 239000007788 liquid Substances 0.000 claims abstract description 63
- 238000003825 pressing Methods 0.000 claims abstract description 15
- 239000002002 slurry Substances 0.000 claims description 120
- 238000000576 coating method Methods 0.000 claims description 84
- 239000011248 coating agent Substances 0.000 claims description 83
- 238000007599 discharging Methods 0.000 claims description 58
- 229920001971 elastomer Polymers 0.000 claims description 34
- 238000010422 painting Methods 0.000 claims description 10
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 9
- 239000000806 elastomer Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 abstract description 17
- 239000005060 rubber Substances 0.000 description 27
- 238000010023 transfer printing Methods 0.000 description 25
- 239000002904 solvent Substances 0.000 description 22
- 230000014759 maintenance of location Effects 0.000 description 12
- 238000010521 absorption reaction Methods 0.000 description 11
- 239000000178 monomer Substances 0.000 description 11
- 239000000758 substrate Substances 0.000 description 11
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- 238000005516 engineering process Methods 0.000 description 8
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- 238000004513 sizing Methods 0.000 description 7
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- 239000004925 Acrylic resin Substances 0.000 description 2
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- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical class CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- QZPSOSOOLFHYRR-UHFFFAOYSA-N 3-hydroxypropyl prop-2-enoate Chemical compound OCCCOC(=O)C=C QZPSOSOOLFHYRR-UHFFFAOYSA-N 0.000 description 1
- DXPPIEDUBFUSEZ-UHFFFAOYSA-N 6-methylheptyl prop-2-enoate Chemical group CC(C)CCCCCOC(=O)C=C DXPPIEDUBFUSEZ-UHFFFAOYSA-N 0.000 description 1
- LJSJTXAZFHYHMM-UHFFFAOYSA-N 7-methyloctyl acetate Chemical compound CC(C)CCCCCCOC(C)=O LJSJTXAZFHYHMM-UHFFFAOYSA-N 0.000 description 1
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 1
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
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- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
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- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N ethyl acetate Substances CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- 230000005021 gait Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229920003049 isoprene rubber Polymers 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical class O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- APWFFUVXHHQZBH-UHFFFAOYSA-N octan-2-yl nitrite prop-2-enoic acid Chemical class N(=O)OC(C)CCCCCC.C(C=C)(=O)O APWFFUVXHHQZBH-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
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- 239000011241 protective layer Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
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- 150000003505 terpenes Chemical class 0.000 description 1
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- 230000008719 thickening Effects 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
- H01J9/22—Applying luminescent coatings
- H01J9/227—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
- B05B15/52—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools, brushes, or analogous members
-
- B08B1/30—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0028—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by adhesive surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Preventing or detecting of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/16535—Cleaning of print head nozzles using wiping constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Preventing or detecting of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/16552—Cleaning of print head nozzles using cleaning fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Preventing or detecting of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/16535—Cleaning of print head nozzles using wiping constructions
- B41J2002/1655—Cleaning of print head nozzles using wiping constructions with wiping surface parallel with nozzle plate and mounted on reels, e.g. cleaning ribbon cassettes
Abstract
An application head cleaning method for cleaning application liquid adhering to a discharge opening surface near a discharge opening of an application head. In the method, one or more times of pressing operations in each of which an adhesive tape is made to be in substantially vertical contact with the discharge opening surface near the discharge opening and then substantially vertically peeled off are performed, a minute-amount discharge operation in which a minute amount of the application liquid is discharged from the discharge opening is performed, and then one or more times of pressing operations in each of which an adhesive tape is made to be in substantially vertical contact with the discharge opening surface near the discharge opening and then substantially vertically peeled off are performed. Paste adhering to the discharge opening of the application head and the discharge opening surface can be efficiently removed by using the adhesive tape material without damaging the application head.
Description
Technical field
The present invention relates to the clean method of application head, the method is that adhesive tape is pressed near the coating liquid that touches application head is removed the outlet that is attached to application head or applied slurry.
Background technology
In recent years, the exploitation of once-through type and AC plasma displaying devices is constantly strengthened, and entered into market, large market is in continuous formation.In plasma scope, form and have the structure of separating all functions such as pixel.AC plasma displaying devices for example, between the inherent opposed anode of the discharge space that has between substrate and the back substrate in front and the negative electrode plasma discharge occurs, the very short ultraviolet ray irradiation of wavelength of the 147nm, the 172nm that are sent by the discharge gas such as Xe-Ne mist that are enclosed in the discharge space is shown to the fluorophor that is arranged in the discharge space.
The said structure body is called next door (being also referred to as barrier, rib), and it is for discharge range being controlled at certain area, when showing, guaranteeing that uniform discharge space arranges in the unit of regulation.Generally speaking the shape in next door is that general width is 20～120 μ m, highly is the striated of 50～250 μ m or clathrate etc.And fluorophor is that the fluorophor paste take fluorophor powder, organic binder bond and organic solvent as main component (paste) is coated between the set next door, carries out as required drying, burns till, and forms luminescent coating.As the method that fluorophor paste is coated between the set next door, stencil printing, glue sizing method (dispenser method) (sometimes being also referred to as nozzle process) are arranged, the glue sizing method that wherein material unaccounted-for (MUF) is few is noticeable.
Fig. 3 represents to utilize the ideograph of the fluorophor paste painting method of glue sizing method.So-called glue sizing method, that the space (menifold) that stockpiles fluorophor paste 2 is arranged in the inside of application head 1, opposed and when relatively moving with substrate 3, import the compressed air of having controlled pressure by the press fit pipe 4 that adds that is connected in this space, thus from outlet 5 to discharging the painting method that fluorophor paste applies between the next door.Because the batch (-type) that is each substrate applies, thus each when applying beginning repeatability well and stably to discharge slurry from application head very important.
Utilize this glue sizing method to apply fluorophor paste is to apply a sheet by a sheetly, after a substrate having been carried out coating, stop to discharge fluorophor pastes 2 by outlet 5, but near the discharge actinal surface 6 the outlet 5 (face that comprises the outlet of application head), adhere to easily residual slurry this moment.If before carrying out applying next time, be attached with residual slurry or foreign matter or near the discharge actinal surface 6 outlet 5 near the discharge actinal surface 6 outlet 5 scar, pit equivalent damage are arranged, the coatings such as discharge behavior confusion inhomogeneous, slurry of generation discharge rate when applying the again unsettled problem that becomes is easily then arranged.The result has a strong impact on the coating quality, produces in a large number substandard products, so not preferred.
For this reason, making the discharge actinal surface 6 that comprises outlet 5 before coating is important for the state of clean enough.That is, applying front cleaning application head is absolutely necessary.As this type of the clean method of application head, now known having will be wiped parts and be pressed the method (referring to patent documentation 1) that makes its slip when discharging actinal surface and wipe residual slurry or foreign matter of touching.The method will be pressed when touching to discharging actinal surface 6 by the parts 9 of wiping that braid consists of with press touching parts 10 as shown in Figure 4, make it decide shortly to slide on the direction 11, wipe the residual slurry 8 of adhering on outlet 5 and the discharge actinal surface 6 by friction.Particularly knownly wipe the method for deleting that effect is used with the braid limit of the moistening superfine fibers of cleaning solvent such as acetone such as the limit in order to improve.
But, not only there is the high problem of the cost of the braid of wiping effective superfine fiber in the method, also exists by wiping the inorganic powder such as fluorophor powder contained in the fluorophor paste that parts wipe and the moving problem that causes in application head surface generation scratch 12 shown in Figure 5 of sliding in state of discharging actinal surface and contact.If at application head such scar occurs, then the discharge behavior of coating liquid becomes unstable easily in the coating beginning, has a strong impact on the coating quality, therefore becomes and can not use, and has to replace with the application head that does not have scar.
Further, generally speaking, on the application head 1 in glue sizing method, be processed with accurately about 1000～4000, diameter is the small outlet 5 about 50～200 μ m, thereby very expensive, because the replacing of this class application head that scratch causes has increased the manufacturing cost of plasma scope significantly, so not preferred.
Known a kind of clean method also is not the method for using braid to wipe in addition, but will be attached to the clean method (referring to patent documentation 2) that near the fluorophor paste of the discharge actinal surface the outlet strikes off with scraper plate.Yet complicated with the adjustment that scraper plate strikes off, the dust that the scraper plate wearing and tearing produce throws into question easily.In addition, near the discharge actinal surface that exists the outlet that the inorganic powders such as fluorophor powder that contain in the fluorophor paste that scraper plate or scraper plate strike off cause application head produces abrasive danger, thereby still undesirable.
In addition, in order to solve the damage problem that strikes off the outlet that causes, known have a following technology, this technology is discharged a small amount of ink-jet with the coating liquid of low viscosity low concentration to the discharge actinal surface of inkjet nozzle, and the lubrication by coating liquid prevents the wearing and tearing of scraper plate and the scar (referring to patent documentation 3) of discharging actinal surface.Yet, containing on high concentration such as fluorophor paste ground in the situation of highly viscous slurry of solia particle, the lubrication of coating liquid is abundant not, and the scar that makes on the contrary the wearing and tearing of scraper plate and discharge actinal surface worsens.
On the other hand, in order to prevent the scar of the discharge actinal surface that this class is caused by slip, known have a following technology, and the cleaning material that this technology will be made of porous adsorbing material generally perpendicularly be pressed and touch to the discharge actinal surface of inkjet nozzle separately (referring to patent documentation 4) by the isobaric parts that touch of rubber.Yet, in that such high concentration ground contains in the situation of the highly viscous slurry of solia particle such as fluorophor paste, porous adsorbent is pressed touches can not fully absorb, transfer printing, thereby it is bad that cleaning occurs.
Further, known have a following technology, this technology makes the adhesive tape butt of the ability with lyosoption be attached with the discharge actinal surface of the application head of fluorophor paste, thereby the lyosoption composition solidifies residual slurry from residual slurry, and then the slurry that will solidify is peeled off transfer printing (referring to patent documentation 5) by cohesive force from cleaned material surface.
So such adhesive tape is installed on the identical application head cleaning device of the device put down in writing with patent documentation 4, carry out actual coating by the identical phosphor coated device of device of putting down in writing with patent documentation 1, the result does not have to remove fluorophor paste fully, has significantly damaged the coating quality.Touch the time, repeatedly repeat to press tactile number of times even prolong the pressure of adhesive tape, not only do not have to solve fully and remove badly, sometimes make on the contrary its deterioration.Phenomenon is carried out the result of labor, found following situation.
Fig. 6 is the ideograph that near the attachment state of the residual slurry the outlet when only carrying out pressing the clean method that touches work 1 time is adopted in expression.At first, shown in Fig. 6 (a), after the use existing type application head cleaning device identical with the device that patent documentation 1 is put down in writing cleans near the outlet, fluorophor paste normally is coated on the substrate that has formed the next door.The application head of observing after applying is discharged actinal surface 6, finds that residual slurry 8a～8c adheres on it as the coating liquid stain that shape, amount all change brokenly shown in Fig. 6 (b).After having carried out for several times coating, the attachment state of residual slurry is at every turn not identical.
Then, for the nozzle outlet face 6 that is attached with above-mentioned irregular coating liquid stain, pressed by the same smooth rubber of the device of putting down in writing with patent documentation 4 and to touch parts and adhesive tape is pressed touch to discharging after actinal surface implements transfer printing, observe the nozzle outlet face after cleaning, the result has confirmed following situation shown in Fig. 6 (c).
The part that is attached with a small amount of residual slurry 8a is pressed at adhesive tape and is absorbed near the thinly discharge actinal surface of firm attachment outlet of the slurry that solidifies, the residual attachment 13a that tacky state is arranged by adhesive tape because of solvent in touching.On the other hand, the part that is attached with a large amount of residual slurry 8b is pressed at adhesive tape and is utilized the curing of solvent absorption fully not carry out in touching, and also residual thinly have aqueous slurry, thus residual the attachment 13b of moisture state.That is, 2 kinds of generations that transfer printing is bad that state is different have been found.Be attached with the part of the residual slurry 8c of moderate amount, it is bad that transfer printing does not occur, and becomes the good part 13c of transfer printing.
If again implementing adhesive tape for the attachment of further removing moisture state presses tactile, although then can remove the attachment of moisture state, but become the part of tacky state attachment, the slurry that solidifies is attached to the nozzle outlet face more securely, even after this attempt removing with adhesive tape, also fail to remove.
So the pressure of having studied the amount of residual slurry and being suitable for removing the residual slurry of this amount is most touched the relation between the retention time, both are proportional as can be known for the result.That is the pressure that is fit to weak point in the situation that, the residual slurry amount is few is touched the retention time, the tactile retention time of suitable long pressure in the residual slurry amount situation how.Therefore, touch the retention time if shorten pressure corresponding to the part that is attached with a small amount of residual slurry, the transfer printing that then can improve this part that is attached with a small amount of residual slurry is bad, but on the contrary at the part of the residual slurry that is attached with moderate amount and the residual attachment that moisture state is arranged of part that is attached with a large amount of residual slurry, particularly be attached with the bad aggravation of transfer printing of the part of a large amount of residual slurry.Need to prove that the tactile retention time of so-called pressure referred to behind near the discharge actinal surface the adhesive tape butt outlet until the time of peeling off.
Then, touch the time if prolong pressure corresponding to the part that is attached with a large amount of residual slurry, the transfer printing that then can improve this part that is attached with a large amount of residual slurry is bad, but on the contrary, at the part of the residual slurry that is attached with moderate amount and the residual attachment that tacky state is arranged of part that is attached with a small amount of residual slurry, particularly be attached with the bad aggravation of transfer printing of the part of a small amount of residual slurry.
Either party during inventor etc. are just bad to above-mentioned 2 kinds of transfer printings resultful clean conditions has carried out various researchs, the result draws to draw a conclusion, namely, for the residual slurry of adhering to brokenly that residues in the coater nozzle surface, by a clean conditions or repeat this condition and can not remove above-mentioned residual slurry of adhering to brokenly fully.Therefore, further study, finally invented present technique.
Patent documentation 1: JP 2002-126599 communique
Patent documentation 2: JP 2004-014393 communique
Patent documentation 3: JP 2006-247956 communique
Patent documentation 4: JP 2004-330027 communique
Patent documentation 5: JP 2001-353856 communique
Summary of the invention
The object of the present invention is to provide a kind of clean method of application head, the method use adhesive tape can effectively, not removed the outlet that is attached to application head and the coating liquid of discharging actinal surface with damaging application head, and a kind of slurry painting method of this application head clean method and manufacture method of plasma scope used is provided.
The means that solve above-mentioned problem are a kind of application head clean methods, near the coating liquid of the discharge actinal surface that the outlet that described application head clean method cleaning is attached to application head is, it is characterized in that, the pressure of carrying out more than 1 time is touched work, this pressure touch make adhesive tape in the approximate vertical direction near near the discharge actinal surface this outlet and behind butt, peel off in the approximate vertical direction, after this carry out discharging from this outlet trace the micro-discharging operation of coating liquid, the pressure of further carrying out more than 1 time touch to be done, this pressures shake-up make adhesive tape in the approximate vertical direction near near the discharge actinal surface this outlet and behind butt, peel off in the approximate vertical direction.
According to the present invention, even at the nozzle outlet face that is attached with by the inexpungible irregular coating liquid stain of existing clean technologies, also can press shake-up to do or its repetition by using 1 time of adhesive tape, comprise that the whole transfer printings of inexpungible residual coating liquid remove, not only can clean clean, so and owing to do not slide and can not damage.
According to the present invention, do by touching in the pressure more than 1 time of carrying out before the micro-discharging operation, at the residual thin attachment that moisture state is arranged of the part that is attached with a large amount of residual coating liquids, part at the residual coating liquid that is attached with moderate amount is wiped free of totally, at the residual thin attachment that tacky state is arranged of the part that is attached with a small amount of residual coating liquid.By the micro-discharging operation that next carries out, big or small unification and very little coating liquid stain have been formed.After this touch work by the pressure of carrying out more than 1 time, remove the coating liquid stain that is formed by micro-discharging operation.At this moment, the pressure before micro-discharging operation is touched the attachment of making residual very thin moistening shape, touches by the pressure of after this carrying out simultaneously with the coating liquid stain to be removed.In addition, the part of good bond also became moisture state owing to contacting with the coating liquid stain during the pressure before micro-discharging operation was touched and done, and touched by the pressure of after this carrying out and did to remove.The part that pressure before micro-discharging operation can be removed in touching and doing although again adhere to the coating liquid stain, can be touched by the pressure of after this carrying out and do to remove.
According to the present invention, even at the nozzle outlet face that is attached with by the residual coating liquid of the existing bonding inexpungible irregular large tracts of land of transfer technique, also can residual slurry is clean from removing near the outlet.
In addition, the means that solve above-mentioned problem are clean methods of a kind of application head, and the method is pressed and touched in the work at each, press in the face of application head discharge actinal surface ground across above-mentioned adhesive tape and touch the tactile parts of the pressure that is made of elastomer.
In addition, above-mentioned coating liquid is fluorophor paste in the above-mentioned application head clean method.
In addition, also relate to a kind of application head clean method, above-mentioned application head is the phosphor coated nozzle for the manufacture of plasma scope in the method.
In addition, also relate to a kind of slurry painting method, it is characterized in that, use above-mentioned application head clean method cleaning application head after, discharge coating liquid from application head and apply.
Further, also relate to a kind of manufacture method of plasma scope, it is characterized in that, use above-mentioned slurry painting method to form luminescent coating.
If use application head clean method of the present invention, though be yet that a kind of easy method can positively be removed residual coating liquid from application head discharge actinal surface, thereby a kind of low cost and easy application head clean method can be provided.In addition, because cleaning material does not slide at the discharge actinal surface of application head, so can not damage the discharge actinal surface of application head, has the effect in the application head life-span of the significant prolongation costliness of expecting.
Description of drawings
Fig. 1 is the ideograph of the embodiment of expression application head clean method of the present invention.
Fig. 2 is near the ideograph of the attachment state of the residual slurry the outlet in the expression clean method of the present invention.
Fig. 3 utilizes the ideograph of the fluorophor paste painting method of glue sizing method for expression.
Fig. 4 is the ideograph of the existing application head clean method of expression.
Fig. 5 is near the ideograph of the scratch state expression outlet.
Fig. 6 is near the ideograph of the attachment state of the residual slurry the outlet that only carries out pressing in the clean method that touches work for 1 time.
Symbol description
1 application head
2 fluorophor pastes
3 substrates
4 add press fit pipe
5 outlets
6 discharge actinal surface
7 slurries of discharging
8 residual slurry
The residual slurry that 8a is a small amount of
The residual slurry that 8b is a large amount of
The residual slurry of the moderate amount of 8c
9 wipe parts by what braid consisted of
10 press tactile parts
11 glide directions
12 scratches
The attachment of 13a tacky state
The attachment of 13b moisture state
The good part of 13c transfer printing
14 adhesive tapes
15 folds are unfolded guide rail
The slurry of 16 transfer printings
17 coating liquids stain
The specific embodiment
The present invention relates to a kind of application head clean method, thereby the method has the step touch subsequently this adhesive tape is peeled off the coating liquid of removing near the discharge actinal surface the outlet that is attached to application head on this application head from this application head by adhesive tape is pressed.
Among the present invention, application head refers to consist of the parts such as the coater nozzle of coating unit or tube head, and these parts have for the outlet of discharging coating liquid.In addition, outlet refers to and will supply with the opening of the coating liquid of application head to coated thing discharge.Further, discharge the surface that actinal surface refers to comprise in the application head outer surface outlet peripheral part, namely have the surface of outlet.In addition, refer near the zone the outlet outer rim near the outlet, if under the residual state that coating liquid arranged in this zone, apply, then have a strong impact on the coating quality.
It also can be a plurality of that outlet can be one, it can be the groove shape, circular, the arbitrary shape such as ellipse or polygon, but be that the coating of following fluorophor for plasma scope is with in the situation of application head at application head, be preferably length direction at application head and be arranged with application head corresponding to the circular row outlet (about diameter 50～200 μ m) of the number (about 1000～4000) more than the quantity of the pixel count of scanning direction, thereby so that in plasma scope minimum every kind of color carry out discharging for 1 time ground and apply 1 luminescent coating that picture is required.
Pressure of the present invention is touched and is referred to above-mentioned adhesive tape is discharged actinal surface at approximate vertical direction butt, thereby when keeping certain hour with the cured coated liquid in the binding agent of adhesive tape of the solvent absorption in the coating liquid, by peeling off the coating liquid that will solidify in the approximate vertical direction from discharging actinal surface and be transferred on the adhesive tape and removing.By relatively discharging actinal surface approximate vertical direction butt, do not keep slidably, then peel off in the approximate vertical direction, can not damage application head and remove efficiently being attached to the coating liquid of discharging actinal surface.
Application head clean method of the present invention preferably uses plasma scope manufacturing phosphor coated nozzle as application head, uses fluorophor paste as coating liquid.Below, the example of the application head clean method when manufacturing applies fluorophor paste with the phosphor coated nozzle for the use plasma scope is illustrated, but the present invention is not limited thereto.
Fig. 1 is the ideograph of the embodiment of the clean method of expression application head of the present invention.
The expression of Fig. 1 (a) pattern ground is used and is pressed tactile parts 10 that adhesive tape 14 is pressed the action of touching to residual slurry 8, and this residual slurry 8 is attached to the discharge actinal surface 6 of application head 1.Fig. 1 (b) is the cross section perpendicular to the length direction of Fig. 1 (a), and fold is unfolded guide rail 15 and is illustrated in the front and back of press touching parts 10 and prevents adhesive tape generation wrinkle, lax appearance.
Fig. 1 (c), (d) represent the state of butt state through behind the certain hour adhesive tape 14 being peeled off from discharging actinal surface 6 from Fig. 1 (a), (b), and pattern ground expression residual slurry 8 is transferred to the state of adhesive tape 14.As the pressure touch article spare of in press to touch doing, controlling, the touch pressure of pressure, the amount of being pressed into are arranged, press and touch the retention time, press and touch parts elastic modelling quantity etc., but of paramount importance be to press to touch the retention time.
As mentioned above, experimental result shows, residual slurry amount and press to touch between the retention time proportional relationship is arranged is fit to short pressure in the few situation of residual slurry amount and touches the retention time, is fit to long pressure in the many situation of residual slurry amount and touches the retention time.
Application head clean method of the present invention, for near the chaotic residual slurry brokenly outlet that cleans application head behind the coated substrate, at first, as shown in Figure 1, carry out the 1st time pressure and touch work, this pressure is touched and is done adhesive tape is connected to the discharge actinal surface in the approximate vertical direction, peels off in the approximate vertical direction after coating liquid roughly solidifies.Touch used pressure touch article spare in the work the 1st time pressure, can suitably set corresponding to the situation of residual slurry.Touch work by the 1st time pressure, be attached with the residual very thin attachment that moisture state is arranged of part of a large amount of residual slurry, the part that is attached with the residual slurry of moderate amount is wiped free of totally, is attached with the residual very thin attachment that tacky state is arranged of part of a small amount of residual slurry.The pressure of carrying out before the micro-discharging operation of next explanation is touched and is preferably 1 time, also can carry out more than 2 times as required.
Fig. 2 is near the ideograph of the attachment state of the residual slurry of the outlet in the expression clean method of the present invention.Fig. 2 (a) is illustrated in the attachment state that micro-discharging operation carries out the residual slurry of discharge actinal surface before.Touch to do by the pressure more than 1 time of before carrying out micro-discharging operation, carrying out, exist the part of the attachment 13b of the part that residual slurry is eliminated the attachment 13a of the good part 13c of clean transfer printing, residual tacky state, residual moisture state.
Next carry out discharging from the outlet trace the micro-discharging operation of coating liquid.The attachment state of the residual slurry of the discharge actinal surface after the micro-discharging operation of Fig. 2 (b) expression carries out.By micro-discharging operation, be formed with correctly and controlled equably the small coating liquid stain 17 of size at the peripheral position of the outlet 5 of discharging actinal surface 6.Because originally application head just has usually with slurry high accuracy and the function of discharging equably, thus need not special equipment be set in addition for micro-discharging operation, as long as set micro-discharging operation.As imposing a condition that trace is discharged, can suitably set corresponding to the flow resistance of slurry viscosity and outlet.For example, preferred use to discharge press 300～1000kPa, pressing time 0.01～1s etc.Trace is discharged and to be preferably formed with the coating liquid stain that covers outlet, but is not limited to this, as long as slurry has covered outlet when touching pressing at least.
Then, touch work by the pressure of carrying out after the micro-discharging operation, the attachment 13b of the very thin moisture state that micro-discharging operation is before residual removes with coating liquid stain 17.The attachment 13a of residual tacky state becomes moisture state by contacting with the coating liquid stain before the trace discharging operation, touches by the pressure of carrying out after the micro-discharging operation and does easily to be removed.Again be formed with coating liquid stain 17 although be eliminated the good part 13c of clean transfer printing by the pressure shake-up of carrying out before the micro-discharging operation, but to touch the retention time be to set corresponding to the amount of the residual slurry of the formed coating liquid stain 17 of micro-discharging operation owing to the pressure of carrying out after the micro-discharging operation is touched the pressure of doing, thereby can positively be removed.
So, even be attached with nozzle outlet face by the irregular residual slurry of the inexpungible size of existing bonding transfer technique, also can residual slurry is clean from removing near the outlet.In addition, the pressure of carrying out after the micro-discharging operation is touched and is preferably 1 time, also can carry out more than 2 times as required.
; because in the attachment of tacky state; touched near the attachment the just outlet of doing to remove by the pressure of carrying out after the micro-discharging operation; this attachment becomes moisture state because of the formed coating liquid of micro-discharging operation stain, so sometimes residual in a part of former state of the attachment of the locational tacky state that breaks away from outlet.Even yet in this case, thereby also make it not affect coating owing to can suitably adjust the size of coating liquid stain 17 near fully cleaning outlet, thus no problem.
The size of coating liquid stain is as long as be that the outlet spacing is suitably set according to the outlet diameter of application head, distance between outlet, for example for the PDP fluorophor during with nozzle preferred outlet diameter be that 50～200 μ, outlet spacing are 100～1000 μ m, as the size of such coating liquid stain 17, below the above 1000 μ m of preferred distance outlet outer rim 10 μ m.If less than 10 μ m, then near the cleaning the outlet is insufficient, and the easy turmoil of shape, the coating of the slurry of when beginning to discharge again the discharge rate inequality occurs easily, discharging easily become unstable.If greater than 1000 μ m, then touched by the pressure of carrying out after the micro-discharging operation and do to be difficult to remove equably.The size of coating liquid stain 17 is more below the above 500 μ m of preferred distance outlet outer rim 50 μ m.
Further, the size variation of coating liquid stain is hour comparatively desirable, and advantageous variant is below 100 μ m more than the 1 μ m.In order to obtain the variation less than 1 μ m, need very complicated and expensive discharge rate control device, so not preferred.If change greater than 100 μ m, then touch by the pressure of carrying out after the micro-discharging operation and do to be difficult to remove equably.
Below, press each key element of the setting that touches the pressure touch article spare that adopts in the work to describe for impact, but press the setting of touch article spare to be not limited to this, also can suitably set to press and touch number of times.
Touch the retention time as pressing, be preferably 0.1 second～10 seconds.If be shorter than 0.1 second, then fail fully to solidify because of slurry, so it is bad that moistening transfer printing occurs easily.If be longer than 10 seconds, then because slurry too solidifies, so it is bad that adhesive transfer occurs easily.More preferably stablized 0.5 second～5 seconds.
To touch in order further positively pressing, preferably will to press tactile parts to press in the approximate vertical direction in the face of the discharge actinal surface of application head from the back side of adhesive tape and touch, the butt adhesive tape, if at the bearing surface of pressing tactile parts elastomer is set, then more preferred.
Use and press in the situation of touching parts, for example, as shown in Figure 1, make to press and touch parts 10 across adhesive tape 14, move with respect to discharging the direction of actinal surface 6 in approximate vertical, the adhesive layer of adhesive tape is pressed to the discharge actinal surface 6 of application head 1 touch, press thus tactile, make the residual slurry 8 near the discharge actinal surface 6 that is attached to the outlet 5 be attached to adhesive layer, then adhesive tape 14 is peeled off from discharging actinal surface 6, can remove thus and be attached to the residual slurry 8 of discharging on the actinal surface 6.When adhesive tape 14 is peeled off from discharging actinal surface 6, will press and touch parts 10 and peel off, make its with respect to discharge actinal surface 6 approximate vertical directions away from.Give slightly high tension force etc. to adhesive tape 14, when being pulled away from fast, successful.
Preferred pressure touch pressure (contact) is 0.01～1MPa.If contact is less than 0.01MPa, then the even transfer printing of slurry becomes insufficient.In addition, if greater than 1MPa, then to press the load of mechanism large in docking, thus not preferred, and also application head also is damaged easily, so not preferred.0.05～0.3MPa more preferably.The mensuration of contact such as the pressure sensitive sheets (trade name PRESCALE) that can use Fuji Photo Film Co Ltd. to make etc.In addition, contact pressure sensor can be combined in press to touch in the parts and arrange, the controller of action is being pressed in metering result feedback to the contact of contact, obtain thus uniform contact.
Above-mentioned contact is being pressed particularly and elastomer to be pressed the amount of being pressed into of touching parts at application head is can realize aptly in the situation of 0mm～5mm.If be pressed into quantity not sufficient 0, then easily cause not coming in contact the state of pressing.During greater than 5mm, because application head easily is damaged, so not preferred.
Elastomer as consist of to press touching parts can use various materials, but rubber most preferably.Can use various rubber, even the preferred butt that repeats does not have residual deformation etc. yet and damages, recovers fast rubber.As an example of this class rubber such as enumerating silicon rubber or natural rubber etc.
In addition, even preferably being attached with slurry also is difficult to occur deteriorated quality of rubber materials.In the situation of the above-mentioned preferred compositions that can not select slurry and quality of rubber materials, can protective layer etc. be set at rubber surface.
As the hardness of rubber, be preferably A20～A60 degree (JIS K 6253 (2006)).Contact becomes a bit not enough when spending less than A20, and it is bad that moistening transfer printing easily occurs.In addition, elasticity is impaired when spending greater than A60, not only can not get uniform contact, and application head is damaged easily, so not preferred.A30～A40 degree more preferably.
Press to touch the firmness change of rubber of bearing surface of parts and can not get uniform contact when large, thereby the little material of firmness change is better, is preferably below 20 degree.If be that 10 degree are with next more preferred.
Tap is in the situation that the row shape arranges in application head, and the linearity of pressing the bearing surface that touches parts is the 1mm uniform contact that is easy to get when following, thereby preferably.0.5mm with next more preferred.In addition, surface roughness that press to touch the bearing surface of parts is the 0.5mm uniform contact that is easy to get when following, thereby preferably.0.1mm with next more preferred.
In addition, be preferably 1～30mm as the thickness of rubber, more preferably 5～15mm.Impaired less than elasticity in the situation of 1mm, can not get suitable contact.In the situation greater than 30mm, it is many that unwanted material becomes, and it is large that device becomes, thereby uneconomical.
When the shape of cross section of pressing the bearing surface that touches parts is convex, can positively form the contact of the discharge oral area of particular importance, thereby preferred.If it is not plane or matrix then come in contact the inadequate part of pressure easily, so preferred.The more preferably part that is shaped as cylinder of bearing surface particularly.In this case, begin to produce contact near the outlet that is a row arrangement, the peripheral position to outlet increases then, so the expansion of slurry is even, thereby preferred.In addition, bearing surface be shaped as cylinder a part of the time, the processing of bearing surface becomes easily, linearity improves as a result, and is therefore preferred.
The diameter of preferred cylinder is 10～1000mm.If less than 10mm, then the position of outlet is departed from the summit of cylinder easily, can not apply suitable pressure to outlet, so not preferred.The effect of convex weakens during greater than 1000mm, comes in contact easily the part of insufficient pressure, so not preferred.The diameter of cylinder is 20～100mm more preferably.If make the cylinder summit aim at the outlet position, then contact is even easily, thereby more preferably.Deviation between the summit of cylinder and outlet position is little more satisfactory, and preferred deviation is below the 5mm, below the more preferred 2mm.
Touch the responsiveness of doing for pressure of the present invention, when butt speed is 1～100mm/s, most effectively transfer printing when peeling rate is 10～1000mm/s.
Applicable to the surface tension of preferred its face that contacts with slurry of adhesive tape of the present invention surface tension greater than slurry or slurry solvent.If the surface tension of adhesive tape then can not be with stably transfer printing of slurry less than the surface tension of slurry.
Applicable to adhesive tape of the present invention corresponding to widely coating liquid kind or adhesion amount, so can suitably select to use.Adhesive tape is preferably the structure that is made of matrix material and adhesive layer, is the adhesive tape that adhesive layer is made of the solvent absorbing binding agent.This be because, the flowability of slurry reduces (curings) if binding agent can absorb slurry or slurry solvent, is easy to peel off transfer printing, thereby preferably.For this reason, the solubility parameter of binding material is preferably the value close to the solubility parameter of slurry or slurry solvent.The preferred every 1m of the solvent absorption ability of above-mentioned adhesive tape
2Area is more than the 10mL, more preferably more than the 20mL.When the solvent absorption ability is lower than every 1m
2During area 10mL, exist the residual tendency of solvent absorption occurs easily.In addition, the measured value of the amount that increases because of absorption for dipping in consisting of the solvent of coating liquid 1 minute of the solvent absorption ability of adhesive tape.
The preferred every 1m of the solvent absorption speed of above-mentioned adhesive tape
2Area is 1mL/ more than second, and more preferably 3mL/ is more than second.If solvent absorption speed is lower than every 1m
2Area 1mL/ second, then slurry solvent absorb too time-consuming, the tendency that has the productive temp of device to elongate.Need to prove that the solvent absorption speed of adhesive tape is for being immersed in adhesive tape in the solvent that consists of coating liquid, lyosoption in 5 seconds and the part weight that increases is scaled the measured value of per unit area, time per unit.
Further, the every 20mm width of the cohesive force of above-mentioned adhesive tape is preferably 0.5～4.0N, more preferably 2.0～3.0N.If the not enough 0.5N of the cohesive force of every 20mm width, the tendency of residual solidfied material after then having the solvent that thoroughly to remove in discharging the residual slurry of actinal surface to be absorbed, if and above 4.0N, then tape stripping is time-consuming, and the tendency that has adhesive layer to peel off from the matrix material of adhesive tape.In addition, the cohesive force of this adhesive tape is the value of following mensuration: by take JIS Z 0237 (2000) method as foundation, with thickness be that the PET film of 25 μ m is fitted, under 23 ℃, peel off to 180 ° of directions with the draw speed of 300mm/min and measure.Even if behind lyosoption, also there is the cohesive force this point very important.
In addition, the thickness of the adhesive layer of above-mentioned adhesive tape is preferably 0.005～0.3mm, more preferably 0.01～0.15mm.If the not enough 0.005mm of the thickness of adhesive layer then has the tendency that can not absorb the solvent in the slurry fully, the thickness thickening of adhesive tape when surpassing 0.3mm, coiling length shortens, and exists exchange to become frequently tendency.
As adhesive tape used in the present invention, press to touch in order not damage application head ground, preferably have elasticity, adhesive tape that the binding agent face is level and smooth.As this class adhesive tape, preferably has the adhesive tape of the adhesive layer that is consisted of by foaming adhesive.So-called foaming adhesive refers to that adhesive layer has the binding agent of bubble (unit) or fine emptying aperture, and it has elasticity.For example, can use disclosed material in the JP 2000-169803 communique.
This binding agent uses acrylic resin or rubber resin etc. as principal component.Described acrylic resin is take the copolymer of acrylate as the principal monomer composition, more specifically, in giving the low main monomer of close-burning vitrification point, add to be used for giving the comonomer of caking property, cohesiveness, so be used for improving bridging property, the close-burning monomer that contains functional group carries out polymerization and generates.
As main monomer, for example, can enumerate ethyl acrylate, butyl acrylate, acrylic acid 2 Octyl Nitrites, Isooctyl acrylate monomer, isononyl acetate etc.As comonomer, such as enumerating vinyl-acetic ester, acrylonitrile, acrylamide, styrene, methyl methacrylate, methyl acrylate etc.As the monomer that contains functional group, can enumerate the monomer that methacrylic acid, acrylic acid, itaconic acid etc. contain carboxyl; Hydroxyethyl methacrylate, hydroxypropyl acrylate etc. contain the monomer of hydroxyl; Dimethylaminoethyl methacrylates etc. contain amino monomer; Acrylamide, NMA etc. contain the monomer of amide groups; GMAs etc. contain the monomer of epoxy radicals; Maleic anhydrides etc. contain the monomer of anhydride group etc.
As above-mentioned rubber resin, can list take elastomer as main component, to the material that wherein adds the gained such as caking property imparting agent resin, softening agent, age resister, filler.As this elastomer, for vitrification point low until the polymer that super heated rubber shape flat site is wide, for example, can enumerate synthetic rubber or the thermoplastic elastomer (TPE)s such as natural rubber, isoprene rubber, butadiene-styrene rubber, styrene butadiene block copolymer, styrene isoprene block copolymer, buttress rubber, polyisobutene, poly-IVE, chloroprene rubber, acrylonitrile-butadiene rubber, graft rubber, but be not limited to this.
Be not particularly limited as caking property imparting agent resin, softening agent, age resister, filler, can use known material commonly used.For example, as caking property imparting agent resin, can enumerate rosin based resin, terpenoid resin, Petropols (aliphatic category Petropols, fragrant same clan Petropols, hydrogenated petroleum resin), coumarone indeneresin, styrene resin etc.Wherein, as rubber resin, particularly preferably take styrene isoprene block copolymer or natural rubber class elastomer as main component.
The device that is used for application head clean method of the present invention preferably has following equipment: the unwinding device of adhesive tape being supplied with this adhesive tape by the uncoiling of roller shape, batch (-type) ground; Winding apparatus with the tape roll coiled roller shape after the cleaning; Control the equipment of this conveyor belt tension; Control the equipment of the amount of feeding of this adhesive tape; Detect the equipment of adhesive tape residual volume.
There is no particular limitation as the tension force of adhesive tape, but be preferably 10～1000N/m.If less than 10N/m, then the conveying of rubber belt material becomes unstable, easily produces gauffer, presses to touch easily to become inhomogeneous.If greater than 1000N/m, then be used for applying the driving arrangement maximization of high-tension, the device load increases, and is perishable, so not preferred.30～200N/m more preferably.
Known various gauffer also preferably is set unfolds equipment, anti-charging equipment.If particularly carried charge is below the 1000kV, then becoming easily prevents discharge, also prevents easily dust absorption, thereby preferred.More preferably below the 100kV.
In addition, occur to apply in the situation such as bad, existing because of slurry and discharge the chaotic situation of adhering in a large number slurry discharging actinal surface of causing.In this case, be necessary repeatedly to carry out several cleaning with adhesive tape, also exist simultaneously for a long time with adhesive tape in the needs cost and press slurry wide spread when touching and the danger of too polluting application head.For this slurry that adheres in a large number, consider preferably to have the filament number that adopts prior art from the production efficiency aspect and be the discharge actinal surface of the braid of the superfine fiber below the 0.1dtex and wipe cleaning mechanism.
By using filament number to be the braid of the superfine fiber below the 0.1dtex, even in slurry, contain in the situation of the small inorganic powder about several μ m, also can clean without wiping residually.In this case, preferably further discharge clean solution to braid, slurry easily is removed.
Even make up as mentioned above in the situation of prior art, compare with the application head clean method of just wiping by braid, owing to the amount of friction that can significantly reduce when wiping, so can suppress significantly the damage of application head.
The present invention particularly preferably is applicable to the situation that slurry viscosity is 10～100PaS.If less than 10PaS, even the tendency that slurry also easily dropped down from application head when existence was uncoated, according to adhesion amount, it is residual that transfer printing occurs easily, so not preferred.In addition, during greater than 100PaS, it is too high that discharge pressure becomes, the tendency that not only exists coating speed to be difficult to improve, and also according to adhesion amount, it is residual that transfer printing also occurs easily, so not preferred.20～70PaS more preferably.Need to prove that the viscosity of slurry is to adopt Brookfield type viscosimeter, is 2.4s in 25 ℃ of temperature of mensuration, shear rate
-1Measured value under the condition.
In addition, as coating liquid, can select with coating materials such as slurry, dielectric slurry, electrode slurrys corresponding to fluorophor paste, reflecting layer for the manufacture of plasma scope.As an example, so-called fluorophor paste is the material that contains fluorophor powder, bond, additive, solvent etc.
More effective when the present invention and known charged coating combination.So-called charged coating is to make the either party in application head or slurry or the substrate charged, by electrostatic force slurry is drawn onto painting method on the substrate.In charged coating owing to exist to apply finish disposed slurry nozzle is discharged the tendency of adhering to minimizing of face, so if with the present invention's combination then can shorten transfer printing time of slurry, on production efficiency very preferably.
Application head of the present invention is if plasma scope manufacturing phosphor coated nozzle then can clean better.If application head clean method of the present invention is applicable to apply in every one side piece leaf formula coating of beginning and end, even if then will pollute the discharge actinal surface by prior art, wipe in the situation of damaging and can not evenly applying, also can not damage and discharge actinal surface, noresidue slurry ground cleans, thereby can obtain very uniform high-quality coated side, thereby preferred.If particularly be used for the plasma scope manufacturing with the coating of fluorophor paste, successful then, thereby preferred.
Embodiment
Below describe for being suitable for the cleaning embodiment of plasma scope of the present invention with the phosphor coated head, but the present invention is not limited to described embodiment.
Employed fluorophor paste is made by following methods.Take the weight ratio of inorganic phosphor powder as 19, be dispersed in weight ratio and be in 16 % by weight terpineol/phenmethylol (3/1) solution of 20 ethyl cellulose, be mixed to get fluorophor paste.Employed fluorophor powder, emitting red light be (Y, Gd) BO
3: Eu, green emitting be ZnSiO
4: Mn, blue-light-emitting be BaMgAl
10O
17: Eu.Cumulative mean particle diameter and the maximum particle diameter of these fluorophor powders of all kinds, the R fluorophor is: 2.7 μ m, 27 μ m; The B fluorophor is: 3.7 μ m, 27 μ m; The G fluorophor is: 3.6 μ m, 25 μ m.In addition, viscosity separately, the R fluorophor is: 52Pas; The B fluorophor is: 39Pas; The G fluorophor is: 40Pas.
The application head that applies this fluorophor uses following application head, described application head is at the length direction of this application head outlet that to be arranged with 1920 apertures be 100 μ m, its inside applies the pressure of 200～700kPa by air, its gait of march with respect to substrate is changed in the scope of 20～200mm/s, discharge fluorophor, thus fluorophor paste is filled between the set next door.
Be used for cleaning and be attached to the outlet of this application head and the adhesive tape of discharging the fluorophor paste of actinal surface, as follows.
Adhesive tape: Nitto Denko Corp's system, ELEP-CLEANER (registration mark)
In addition, fibrous braid is as follows.
Superfine fiber braid: Dongli Ltd.'s system, TORAYSEE (registration mark)
Cleaning solvent as moistening braid uses acetone.
Estimate following carrying out.If residual slurry appears at the edge of tap shown in Fig. 6 c, then have to hinder the normal tendency that applies.So observe the tap face after a series of cleaning action, the discharge hole count that a part of calculating residual slurry is adhered to the form that appears at its edge is with respect to the ratio of total outlet, more than 10% be *, be to be below zero, 1% below 10%.
In above-mentioned application head, fill the fluorophor paste of making as mentioned above, use this application head that fluorophor paste is coated between the set next door., use the adhesive tape of making roller shape, be attached with the application head of fluorophor paste according to method cleaning shown in Figure 1 at outlet and discharge actinal surface thereafter.Tactile parts are pressed in the rubber rollers that the outlet face of use and application head arranges opposed to each other (diameter 60mm, Shore A rubber hardness are 30 degree, and rubber thickness is 10mm) conduct, implement the 1st pressure and touch work.Make outlet and the discharge actinal surface of the adhesive layer contact application head of adhesive tape, with the pressure of 0.2MPa with adhesive tape press touch application head and keep 4 seconds after, when the tactile parts of pressure were moved from outlet towards the direction that deviates from 50mm/s, the gravitation that applies 1kg/m to adhesive tape was peeled off adhesive surface from discharging actinal surface.Very thin slurry film arranged in that about 50% part of outlet is residual.
Implement to press for the 2nd time touch before, implement micro-discharging operation, this action is discharged coating liquid by the outlet trace, adheres to the coating liquid stain that diameter is about 300 μ m near each outlet.
Then carry the 20mm adhesive tape, new adhesive surface is moved to transfer position, implement to press for the 2nd time and touch.Touch on the application head and after keeping 2 seconds by pressing tactile parts with the pressure of 0.2MPa adhesive tape to be pressed once again, when the tactile parts of pressure were moved from outlet towards the direction that deviates from 50mm/s, the gravitation that applies 1kg/m to adhesive tape was peeled off adhesive surface from discharging actinal surface.The outlet that is attached with residual slurry reduces to about 0.5%.Implemented continuously after 2000 cleaning action scar not to occur.
Press tactile parts to use diameter to be the rubber rollers of 200mm.In addition, under the condition identical with embodiment 1, implement.The outlet that is attached with residual slurry reduces to about 5%.Do not abrade after implementing continuously to wipe for 2000 times.
Pressing and touching parts use Shore A rubber hardness is the rubber rollers of 60 degree.In addition, under the condition identical with embodiment 1, implement.The outlet that is attached with residual slurry reduces to about 8%.Do not abrade after implementing continuously to wipe for 2000 times.
Comparative example 1
Wipe parts as band shape and use fibrous braid, the slip that enforcement patent documentation 1 is put down in writing is wiped.Be about 0.2% although be attached with the outlet of residual slurry, implement continuously to wipe for 2000 times the rear serious scratch that occured, become and to use.
Comparative example 2
Pressed after touch at 4 seconds, do not discharge coating liquid from the outlet trace, implement to press in 2 seconds and touch.In addition, under the condition identical with embodiment 1, implement.It is about 20% that the outlet that is attached with residual slurry has reached, and can not use.
[table 1]
| Wipe parts | Action | Small discharge | Roller diameter | Rubber hardness | Wiping | Scar | |
| Embodiment | |||||||
| 1 | Adhesive tape | Press for 2 times and touch 4s, 2s | Have | φ60 | 30 degree | ◎ | ○ |
| |
Adhesive tape | Press for 2 times and touch 4s, 2s | Have | φ200 | 30 degree | ○ | ○ |
| |
Adhesive tape | Press for 2 times and touch 4s, 2s | Have | φ60 | 60 degree | ○ | ○ |
| Compare 1 | Fibrous braid | Slide | - | - | - | ◎ | × |
| Compare 2 | Adhesive tape | Press for 2 times and touch 4s, 2s | Nothing | φ60 | 30 degree | × | ○ |
Utilizability on the industry
Be applicable to the manufacture method of the thin displays such as plasma scope or liquid crystal display.
The present invention is suitable for high concentration ground and contains the highly viscous slurry of solids, discharges liquid but also go for the low viscosity such as ink-jet.
Claims (7)
1. application head clean method is the application head clean method that cleaning is attached near the coating liquid of the discharge actinal surface the outlet of application head, it is characterized in that,
Carry out pressing more than 1 time to touch doing, described pressure touch do be make adhesive tape in the approximate vertical direction near near the discharge actinal surface the described outlet and behind butt, peel off in the approximate vertical direction, carry out afterwards so that the size of coating liquid stain is the micro-discharging operation of discharging coating liquid apart from the mode below the 1000 μ m more than the outlet outer rim 10 μ m from described outlet trace, further implement to press more than 1 time to touch and do, described pressure touch make adhesive tape in the approximate vertical direction near near the discharge actinal surface the described outlet and behind butt, peel off in the approximate vertical direction.
2. application head clean method according to claim 1 is pressed in the shake-up work at each, discharges actinal surface ground across described adhesive tape in the face of application head and presses the tactile tactile parts of pressure that are made of elastomer.
3. application head clean method according to claim 1 and 2, wherein, described coating liquid is fluorophor paste.
4. application head clean method according to claim 1 and 2, wherein, described application head is the phosphor coated nozzle for the manufacture of plasma scope.
5. application head clean method according to claim 3, wherein, described application head is the phosphor coated nozzle for the manufacture of plasma scope.
6. a slurry painting method is characterized in that, right to use is discharged coating liquid from application head and applied after requiring each the described application head clean method in 1 to 5 to clean application head.
7. the manufacture method of a plasma scope is characterized in that, right to use requires 6 described slurry painting methods to form luminescent coating.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007144609 | 2007-05-31 | ||
| JP144609/2007 | 2007-05-31 | ||
| PCT/JP2008/059865 WO2008149758A1 (en) | 2007-05-31 | 2008-05-29 | Application head cleaning method, paste application method, and plasma display production method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101678389A CN101678389A (en) | 2010-03-24 |
| CN101678389B true CN101678389B (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008800175780A Expired - Fee Related CN101678389B (en) | 2007-05-31 | 2008-05-29 | Application head cleaning method, paste application method, and plasma display production method |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5581589B2 (en) |
| KR (1) | KR101525632B1 (en) |
| CN (1) | CN101678389B (en) |
| TW (1) | TWI468230B (en) |
| WO (1) | WO2008149758A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5396912B2 (en) * | 2009-02-26 | 2014-01-22 | 東レ株式会社 | Coating liquid coating apparatus, coating method, method for manufacturing plasma display panel member, and plasma display panel |
| KR101197590B1 (en) * | 2009-07-14 | 2012-11-08 | 세메스 주식회사 | Cleaning unit, treatment solution coating apparatus having the same and cleaning method using the same |
| CN101937818B (en) * | 2010-08-09 | 2012-08-29 | 安徽鑫昊等离子显示器件有限公司 | Multi-face plasma display screen fluorescent powder spraying method and spraying adhesive tape |
| JP5573751B2 (en) * | 2011-03-29 | 2014-08-20 | 東レ株式会社 | Coating head cleaning device and cleaning method |
| JP5802347B1 (en) * | 2014-05-20 | 2015-10-28 | エンジニアリングシステム株式会社 | Trace liquid dropping method and trace liquid dispenser |
| KR20170006653A (en) | 2015-07-09 | 2017-01-18 | 이정현 | Travel carrier |
| US20190025524A1 (en) * | 2016-02-01 | 2019-01-24 | Tomoegawa Co., Ltd | Cleaner |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1445028A (en) * | 2002-03-15 | 2003-10-01 | 精工爱普生株式会社 | Film forming equipment and spray nozzle cleaning method and equipment manufacturing system and equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11320900A (en) * | 1993-01-26 | 1999-11-24 | Matsushita Electric Ind Co Ltd | Ink jet recording apparatus |
| JPH11239750A (en) * | 1998-02-25 | 1999-09-07 | Toray Ind Inc | Method and apparatus for applying coating liquid on uneven substrate, method and apparatus for producing plasma display |
| JP3573065B2 (en) * | 2000-06-06 | 2004-10-06 | 日東電工株式会社 | Adhesive sheet for removing solvent-containing substances |
| JP4320635B2 (en) * | 2005-01-17 | 2009-08-26 | セイコーエプソン株式会社 | Droplet ejection apparatus and electro-optic device manufacturing method |
| JP2006247956A (en) * | 2005-03-09 | 2006-09-21 | Fuji Xerox Co Ltd | Liquid droplet ejection device and wiping method |
-
2008
- 2008-05-29 WO PCT/JP2008/059865 patent/WO2008149758A1/en active Application Filing
- 2008-05-29 JP JP2008530263A patent/JP5581589B2/en not_active Expired - Fee Related
- 2008-05-29 CN CN2008800175780A patent/CN101678389B/en not_active Expired - Fee Related
- 2008-05-29 TW TW97119803A patent/TWI468230B/en not_active IP Right Cessation
- 2008-05-29 KR KR1020097024759A patent/KR101525632B1/en not_active IP Right Cessation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1445028A (en) * | 2002-03-15 | 2003-10-01 | 精工爱普生株式会社 | Film forming equipment and spray nozzle cleaning method and equipment manufacturing system and equipment |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2006-247956A 2006.09.21 |
| JP特开平11-239750A 1999.09.07 |
| JP特开平11-320900A 1999.11.24 |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI468230B (en) | 2015-01-11 |
| KR20100024394A (en) | 2010-03-05 |
| JPWO2008149758A1 (en) | 2010-08-26 |
| WO2008149758A1 (en) | 2008-12-11 |
| JP5581589B2 (en) | 2014-09-03 |
| KR101525632B1 (en) | 2015-06-03 |
| TW200911390A (en) | 2009-03-16 |
| CN101678389A (en) | 2010-03-24 |
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