JP2020534690A - Pvaブラシの洗浄方法及び装置 - Google Patents
Pvaブラシの洗浄方法及び装置 Download PDFInfo
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- JP2020534690A JP2020534690A JP2020515697A JP2020515697A JP2020534690A JP 2020534690 A JP2020534690 A JP 2020534690A JP 2020515697 A JP2020515697 A JP 2020515697A JP 2020515697 A JP2020515697 A JP 2020515697A JP 2020534690 A JP2020534690 A JP 2020534690A
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- pva brush
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- 238000004140 cleaning Methods 0.000 title claims abstract description 151
- 238000000034 method Methods 0.000 title claims abstract description 109
- 239000012535 impurity Substances 0.000 claims abstract description 117
- -1 siloxane compound Chemical class 0.000 claims abstract description 61
- 239000000126 substance Substances 0.000 claims abstract description 50
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 17
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 17
- 239000005416 organic matter Substances 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 15
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 238000004148 unit process Methods 0.000 claims description 4
- 238000002296 dynamic light scattering Methods 0.000 claims description 3
- 238000001745 non-dispersive infrared spectroscopy Methods 0.000 claims description 3
- 238000004611 spectroscopical analysis Methods 0.000 claims description 3
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims 2
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 claims 2
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 claims 2
- 239000000243 solution Substances 0.000 description 58
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 37
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 18
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 10
- 239000000758 substrate Substances 0.000 description 10
- 229910021642 ultra pure water Inorganic materials 0.000 description 10
- 239000012498 ultrapure water Substances 0.000 description 10
- RXCVUHMIWHRLDF-HXUWFJFHSA-N 5,8-dichloro-2-[(4-methoxy-6-methyl-2-oxo-1H-pyridin-3-yl)methyl]-7-[(R)-methoxy(oxetan-3-yl)methyl]-3,4-dihydroisoquinolin-1-one Chemical compound ClC1=C2CCN(C(C2=C(C(=C1)[C@@H](C1COC1)OC)Cl)=O)CC=1C(NC(=CC=1OC)C)=O RXCVUHMIWHRLDF-HXUWFJFHSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 238000005406 washing Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000004132 cross linking Methods 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 238000004895 liquid chromatography mass spectrometry Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229940081735 acetylcellulose Drugs 0.000 description 3
- 238000004380 ashing Methods 0.000 description 3
- 229920002301 cellulose acetate Polymers 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- 229920005591 polysilicon Polymers 0.000 description 3
- BPIUIOXAFBGMNB-UHFFFAOYSA-N 1-hexoxyhexane Chemical compound CCCCCCOCCCCCC BPIUIOXAFBGMNB-UHFFFAOYSA-N 0.000 description 2
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- 239000000020 Nitrocellulose Substances 0.000 description 2
- 239000004695 Polyether sulfone Substances 0.000 description 2
- KYQCOXFCLRTKLS-UHFFFAOYSA-N Pyrazine Chemical compound C1=CN=CC=N1 KYQCOXFCLRTKLS-UHFFFAOYSA-N 0.000 description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 2
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 description 2
- 239000003929 acidic solution Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000003637 basic solution Substances 0.000 description 2
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 2
- 238000000635 electron micrograph Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000006082 mold release agent Substances 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 229920001220 nitrocellulos Polymers 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229920006393 polyether sulfone Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- CPRMKOQKXYSDML-UHFFFAOYSA-M rubidium hydroxide Chemical compound [OH-].[Rb+] CPRMKOQKXYSDML-UHFFFAOYSA-M 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000010897 surface acoustic wave method Methods 0.000 description 2
- VDZOOKBUILJEDG-UHFFFAOYSA-M tetrabutylammonium hydroxide Chemical compound [OH-].CCCC[N+](CCCC)(CCCC)CCCC VDZOOKBUILJEDG-UHFFFAOYSA-M 0.000 description 2
- HIQIXEFWDLTDED-UHFFFAOYSA-N 4-hydroxy-1-piperidin-4-ylpyrrolidin-2-one Chemical compound O=C1CC(O)CN1C1CCNCC1 HIQIXEFWDLTDED-UHFFFAOYSA-N 0.000 description 1
- XYGKGASSKJWLTN-UHFFFAOYSA-N CCCCCCC.CCCCCCC Chemical compound CCCCCCC.CCCCCCC XYGKGASSKJWLTN-UHFFFAOYSA-N 0.000 description 1
- 229920002261 Corn starch Polymers 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- 229920001410 Microfiber Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- PCNDJXKNXGMECE-UHFFFAOYSA-N Phenazine Natural products C1=CC=CC2=NC3=CC=CC=C3N=C21 PCNDJXKNXGMECE-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- SMEGJBVQLJJKKX-HOTMZDKISA-N [(2R,3S,4S,5R,6R)-5-acetyloxy-3,4,6-trihydroxyoxan-2-yl]methyl acetate Chemical compound CC(=O)OC[C@@H]1[C@H]([C@@H]([C@H]([C@@H](O1)O)OC(=O)C)O)O SMEGJBVQLJJKKX-HOTMZDKISA-N 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 150000001241 acetals Chemical class 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- HTRXGEPDTFSKLI-UHFFFAOYSA-N butanoic acid;ethyl acetate Chemical compound CCCC(O)=O.CCOC(C)=O HTRXGEPDTFSKLI-UHFFFAOYSA-N 0.000 description 1
- BRDOFYPYQFDHOQ-UHFFFAOYSA-N butyl acetate;hexanoic acid Chemical compound CCCCCC(O)=O.CCCCOC(C)=O BRDOFYPYQFDHOQ-UHFFFAOYSA-N 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000005499 laser crystallization Methods 0.000 description 1
- 238000007561 laser diffraction method Methods 0.000 description 1
- 230000005381 magnetic domain Effects 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000003658 microfiber Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001592 potato starch Polymers 0.000 description 1
- WBQFIXOSYQAPHV-UHFFFAOYSA-N propan-2-yl dodecanoate 2-propan-2-yldodecanoic acid Chemical compound CCCCCCCCCCCC(=O)OC(C)C.CCCCCCCCCCC(C(C)C)C(O)=O WBQFIXOSYQAPHV-UHFFFAOYSA-N 0.000 description 1
- JMFWAAWQNCWELL-UHFFFAOYSA-N propan-2-yl hexadecanoate;2-propan-2-ylhexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(=O)OC(C)C.CCCCCCCCCCCCCCC(C(C)C)C(O)=O JMFWAAWQNCWELL-UHFFFAOYSA-N 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229940073455 tetraethylammonium hydroxide Drugs 0.000 description 1
- LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 description 1
- QEMXHQIAXOOASZ-UHFFFAOYSA-N tetramethylammonium Chemical compound C[N+](C)(C)C QEMXHQIAXOOASZ-UHFFFAOYSA-N 0.000 description 1
- LPSKDVINWQNWFE-UHFFFAOYSA-M tetrapropylazanium;hydroxide Chemical compound [OH-].CCC[N+](CCC)(CCC)CCC LPSKDVINWQNWFE-UHFFFAOYSA-M 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D9/00—Machines for finishing brushes
- A46D9/04—Cleaning
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B17/00—Accessories for brushes
- A46B17/06—Devices for cleaning brushes after use
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
- A46D1/04—Preparing bristles
- A46D1/045—Cleaning, e.g. washing, drying
-
- 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
- B08B1/50—Cleaning by methods involving the use of tools involving cleaning of the cleaning members
-
- 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
- B08B1/50—Cleaning by methods involving the use of tools involving cleaning of the cleaning members
- B08B1/52—Cleaning by methods involving the use of tools involving cleaning of the cleaning members using fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- 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
- B08B7/02—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Brushes (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
Abstract
Description
RA 2=4(δD1- δD2)2 + (δP1- δp2)2 + (δH1- δH2)2
(RA: 分子間距離(Distance between molecules)、1:溶媒(solvent)、2: 溶質(solute))
RED = RA / R0
(RA: 分子間距離(Distance between molecules)、R0: 溶解球の半径(radius of solubility sphere))
ポロシティ(Porosity)(%)= WB − WA/(WB − WA)− (WA/DPVA)
( WA:乾燥されたブラシの重さ、WB:水に濡れているブラシの重さ、DPVA:PVAブラシの密度(1.3g/cm3)
Claims (17)
- PVAブラシを用意する段階;
有機物を含む洗浄溶液で、前記PVAブラシ内のシロキサン(siloxane)化合物を除去する段階;及び
前記PVAブラシに振動を加えて、前記PVAブラシ内の不純物を除去する段階を含む、PVAブラシの洗浄方法。 - 前記洗浄溶液は、10wt%以上50wt%未満の濃度を有する前記有機物を含む、請求項1に記載のPVAブラシの洗浄方法。
- 前記PVAブラシに振動を加えて、前記PVAブラシ内の前記不純物を除去する段階は、前記PVAブラシに10分間、振動を加えた場合、前記PVAブラシから除去された前記不純物の量が最大値を有することを含む、請求項1に記載のPVAブラシの洗浄方法。
- 前記PVAブラシ内の前記シロキサン化合物及び前記不純物は、同時に除去されることを含む、請求項1に記載のPVAブラシの洗浄方法。
- 前記PVAブラシ内の前記シロキサン化合物及び前記不純物は、前記シロキサン化合物が除去された後、前記不純物が除去されるか、又は前記不純物が除去された後、前記シロキサン化合物が除去されることを含む、請求項1に記載のPVAブラシの洗浄方法。
- 前記有機物は、THF又はTMAHであることを含む、請求項1に記載のPVAブラシの洗浄方法。
- 前記シロキサン化合物は、PDMSであることを含む、請求項1に記載のPVAブラシの洗浄方法。
- 前記PVAブラシ内のシロキサン(siloxane)化合物を除去する段階;及び
前記PVAブラシに振動を加えて、前記PVAブラシ内の前記不純物を除去する段階をユニット工程(unitprocess)と定義し、
さらに、前記シロキサン化合物及び前記不純物が除去された前記PVAブラシの摩擦特性及び弾性特性を測定する段階を含み、
測定された前記PVAブラシの摩擦特性及び弾性特性が、基準範囲以下である場合、前記ユニット工程が、繰り返し行われることを含む、請求項1に記載のPVAブラシの洗浄方法。 - 前記PVAブラシに振動を加えて、前記PVAブラシ内の前記不純物を除去する段階は、前記振動が伝達されたPVAブラシの粒子状の不純物を粒子測定器を用いて測定する過程を含む、請求項1に記載のPVAブラシの洗浄方法。
- 前記粒子測定器は、単一粒子光学測定法(SPOS、singleparticleopticalsizing)、レーザー回折法(laserdiffraction)、動的光散乱法(dynamiclightscattering)、及び音響減衰分光学法(acousticattenuationspectroscopy)のうち少なくとも何れか1つを含む、請求項9に記載のPVAブラシの洗浄方法。
- 前記PVAブラシに振動を加えて、前記PVAブラシ内の前記不純物を除去する段階は、前記振動が伝達されたPVAブラシの有機性の不純物を、有機物測定器を用いて測定する過程を含む、請求項1に記載のPVAブラシの洗浄方法。
- 前記有機物測定器は、紫外線検出器(ultraviolet detector)、伝導度検出器(conductivity analyzer)、電流充電検出器(current charge detector)、NDIR検出器(nondispersive infrared gas analyzer)及び総有機炭素分析器(total organic carbon analyzer)のうち少なくとも何れか1つを含む、請求項11に記載の洗浄用PVAブラシの洗浄方法。
- 前記洗浄溶液は、前記PVAブラシとのREDが1未満の範囲を有する前記有機物を含む、請求項1に記載のPVAブラシの洗浄方法。
- PVAブラシ内のシロキサン化合物を除去する、有機物を含む洗浄溶液が配置される洗浄容器;
前記PVAブラシ内の不純物を除去する振動を、前記PVAブラシに提供し、前記洗浄容器内に配置される振動装置;
前記シロキサン化合物及び前記不純物が除去された前記PVAブラシの摩擦特性を測定する摩擦測定装置;及び
前記シロキサン化合物及び前記不純物が除去された前記PVAブラシの弾性特性を測定する弾性測定装置を含む、PVAブラシ洗浄装置。 - 前記有機物は、THF又はTMAHであり、
前記洗浄溶液は、10wt%以上50wt%未満の濃度を有する前記有機物を含む、請求項14に記載のPVAブラシ洗浄装置。 - 前記振動装置が10分間前記PVAブラシに振動を提供する場合、前記PVAブラシから除去された前記不純物の量が最大値を有することを含む、請求項14に記載のPVAブラシ洗浄装置。
- 前記シロキサン化合物は、PDMSであることを含む、請求項14に記載のPVAブラシ洗浄装置。
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