CN102101095A - Coating device and manufacturing method of coating film product with the same - Google Patents
Coating device and manufacturing method of coating film product with the same Download PDFInfo
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- CN102101095A CN102101095A CN2010105916957A CN201010591695A CN102101095A CN 102101095 A CN102101095 A CN 102101095A CN 2010105916957 A CN2010105916957 A CN 2010105916957A CN 201010591695 A CN201010591695 A CN 201010591695A CN 102101095 A CN102101095 A CN 102101095A
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- Prior art keywords
- coating
- cleaning fluid
- slit
- tablet
- ejiction opening
- Prior art date
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- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 82
- 239000011248 coating agent Substances 0.000 title claims abstract description 78
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 238000004140 cleaning Methods 0.000 claims abstract description 53
- 239000012530 fluid Substances 0.000 claims description 49
- 238000000034 method Methods 0.000 claims description 40
- 239000007864 aqueous solution Substances 0.000 claims description 38
- 230000003287 optical effect Effects 0.000 claims description 28
- 239000004973 liquid crystal related substance Substances 0.000 claims description 27
- 239000007788 liquid Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 125000006850 spacer group Chemical group 0.000 abstract 2
- 239000010408 film Substances 0.000 description 56
- 229920006254 polymer film Polymers 0.000 description 41
- 238000007127 saponification reaction Methods 0.000 description 21
- 229920000642 polymer Polymers 0.000 description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 238000001035 drying Methods 0.000 description 17
- 229920002451 polyvinyl alcohol Polymers 0.000 description 16
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 16
- 239000004372 Polyvinyl alcohol Substances 0.000 description 15
- 239000010410 layer Substances 0.000 description 14
- 150000001875 compounds Chemical class 0.000 description 11
- 239000003431 cross linking reagent Substances 0.000 description 11
- 239000003513 alkali Substances 0.000 description 10
- 239000007921 spray Substances 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 9
- 239000003960 organic solvent Substances 0.000 description 8
- -1 polyethylene Polymers 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Natural products OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 7
- 238000007756 gravure coating Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000007591 painting process Methods 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000009835 boiling Methods 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 108010010803 Gelatin Proteins 0.000 description 3
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229920006037 cross link polymer Polymers 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 229920000159 gelatin Polymers 0.000 description 3
- 239000008273 gelatin Substances 0.000 description 3
- 235000019322 gelatine Nutrition 0.000 description 3
- 235000011852 gelatine desserts Nutrition 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 229920003169 water-soluble polymer Polymers 0.000 description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 241000272162 Podargidae Species 0.000 description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 210000002858 crystal cell Anatomy 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 229940117958 vinyl acetate Drugs 0.000 description 2
- GQHTUMJGOHRCHB-UHFFFAOYSA-N 2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine Chemical compound C1CCCCN2CCCN=C21 GQHTUMJGOHRCHB-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-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
- 229940080296 2-naphthalenesulfonate Drugs 0.000 description 1
- FKCZBCAVNSXTFW-UHFFFAOYSA-N 6-chloro-1h-1,3,5-triazin-2-one Chemical class ClC1=NC=NC(=O)N1 FKCZBCAVNSXTFW-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 229920002126 Acrylic acid copolymer Polymers 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920002160 Celluloid Polymers 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229920002085 Dialdehyde starch Polymers 0.000 description 1
- 206010013786 Dry skin Diseases 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000004988 Nematic liquid crystal Substances 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- NEFJUHCFEYDYOZ-UHFFFAOYSA-N S(=O)(=O)=C.C=C Chemical compound S(=O)(=O)=C.C=C NEFJUHCFEYDYOZ-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 125000004414 alkyl thio group Chemical group 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- NWEKXBVHVALDOL-UHFFFAOYSA-N butylazanium;hydroxide Chemical compound [OH-].CCCC[NH3+] NWEKXBVHVALDOL-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 229940043237 diethanolamine Drugs 0.000 description 1
- 150000002012 dioxanes Chemical class 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229940015043 glyoxal Drugs 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 229920002681 hypalon Polymers 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- CTAPFRYPJLPFDF-UHFFFAOYSA-N isoxazole Chemical compound C=1C=NOC=1 CTAPFRYPJLPFDF-UHFFFAOYSA-N 0.000 description 1
- 125000005647 linker group Chemical group 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229920003145 methacrylic acid copolymer Polymers 0.000 description 1
- 229940117841 methacrylic acid copolymer Drugs 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- KVBGVZZKJNLNJU-UHFFFAOYSA-M naphthalene-2-sulfonate Chemical compound C1=CC=CC2=CC(S(=O)(=O)[O-])=CC=C21 KVBGVZZKJNLNJU-UHFFFAOYSA-M 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- KPADFPAILITQBG-UHFFFAOYSA-N non-4-ene Chemical compound CCCCC=CCCC KPADFPAILITQBG-UHFFFAOYSA-N 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- QUBQYFYWUJJAAK-UHFFFAOYSA-N oxymethurea Chemical compound OCNC(=O)NCO QUBQYFYWUJJAAK-UHFFFAOYSA-N 0.000 description 1
- 229950005308 oxymethurea Drugs 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000013047 polymeric layer Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- QLNJFJADRCOGBJ-UHFFFAOYSA-N propionamide Chemical compound CCC(N)=O QLNJFJADRCOGBJ-UHFFFAOYSA-N 0.000 description 1
- 229940080818 propionamide Drugs 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 150000003235 pyrrolidines Chemical class 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical compound [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- VDZOOKBUILJEDG-UHFFFAOYSA-M tetrabutylammonium hydroxide Chemical compound [OH-].CCCC[N+](CCCC)(CCCC)CCCC VDZOOKBUILJEDG-UHFFFAOYSA-M 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
- LPSKDVINWQNWFE-UHFFFAOYSA-M tetrapropylazanium;hydroxide Chemical compound [OH-].CCC[N+](CCC)(CCC)CCC LPSKDVINWQNWFE-UHFFFAOYSA-M 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Landscapes
- Liquid Crystal (AREA)
- Coating Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The present invention provides a coating device which can effectively restrain ejection speed and ejection angle unstability of the cleaning liquid that is ejected to a flange part of material sheets, and a manufacturing method of the coating film product with the coating device. Spacers (54) are provided on a split (32). Each spacer is provided with the following components: a part (54a) which is separated from a bag part (46) for a preset distance (X) and is parallel with a split ejection port (32A); and an inclined part (54b) which generates an ejection angle of the cleaning liquid at the split ejection port.
Description
Technical field
The present invention relates generally to a kind of apparatus for coating, and it makes the rinse water of the bag portion that supplies to sealing spray mould (slot die) be ejected on the tablet that moves that is coated with alkaline aqueous solution from the slit ejiction opening via slit, thereby this tablet is cleaned.
Background technology
In recent years, as flat type image display device (FPD, flat-panel monitor), liquid crystal indicator is used in various fields.Liquid crystal indicator is made of the sheet material (optical thin film) that liquid crystal cells, polarizer and optical compensating gage (polarizer) etc. have optical function.
Polarizer is made of polarizing coating and two transparent protective films that are arranged on its both sides usually.Polarizing coating normally makes polyvinyl alcohol contain in the aqueous solution that is immersed in iodine or dichroic dye and it is carried out uniaxial tension and obtains.Optical compensating gage is painted by removal of images, the expansion visual angle, has the function of the display quality that improves liquid crystal indicator, therefore is used in various liquid crystal indicators.
As the transparent supporting body of polarizer, optical compensating gage, what employing had excellent light transmission, optics non orientation, excellent physical characteristics, mechanical property, humiture characteristic with low uncertainty is the cellulose ester film of representative with the cellulose acetate film.
As optical compensating gage, replace employed in the past stretching birefringent film, proposed to use the optical compensating gage that on transparent supporting body, has the optical anisotropic layer that forms by liquid crystal molecule (particularly discotic liquid-crystalline molecules).This optical anisotropic layer forms by making the liquid crystal liquid crystal property molecularly oriented and fixing this state of orientation.By using the liquid crystal liquid crystal property molecule, particularly use the discotic mesogenic molecule, can make the optical compensating gage that has with the corresponding various optical characteristics of various display modes of liquid crystal cells.
Via adhesive linkage or alignment films (being generally polyvinyl alcohol) polarizing coating or optical anisotropic layer are arranged on the cellulose ester film as transparent supporting body, but, proposed cellulose ester film is carried out impregnation process in alkaline aqueous solution and made its surperficial saponification and the method (for example patent documentation 1) of hydrophiling as being used to have one of means with the adaptation of these adhesive linkages or alignment films.
In addition, also proposed optionally the single side surface of this film to be carried out the method (for example patent documentation 2) that saponification is handled by alkaline aqueous solution being coated on the cellulose ester film.
In addition, proposed to handle, thereby boosted productivity, made the method (patent documentation 3) of the optical compensating gage that does not have display defect simultaneously by on whole, carrying out saponification equably.And, patent documentation 3 discloses the saponification treatment process (heating, coating, saponification, reaction stop, cleaning) of being undertaken by alkaline aqueous solution, show the saponification treatment process by wetting, remove electricity/dedusting operation, heating process, painting process, saponification operation, reaction stops operation, matting constitutes.
About the method that the tablet that is coated with alkaline aqueous solution is cleaned, adopt via the slit that is communicated with bag portion the sealing spray mould that the cleaning fluid that supplies to the bag portion of coating in the shower nozzle is expressed into the outside, the tablet in mobile is coated with more.
But, under the situation of the alkaline aqueous solution of tablet being cleaned by sealing spray mould, existence can't suppress by cleaning the not shortcoming of the fault of the good lip portions that causes, and this cleanings is not good to be by the spouting velocity that is ejected into the cleaning fluid on the tablet lip portions or to spray the unstable caused of angle.
Patent documentation 1: Japanese kokai publication hei 7-151914 communique
Patent documentation 2: TOHKEMY 2002-82226 communique
Patent documentation 3: TOHKEMY 2003-313326 communique
Summary of the invention
The present invention In view of the foregoing finishes, therefore when its purpose is to be provided at alkaline aqueous solution to tablet (web) and cleans, can suppress to be ejected into the unsettled apparatus for coating of the spouting velocity of cleaning fluid of tablet lip portions (edge) or ejection angle effectively and use the manufacture method of the coated film product of this apparatus for coating.
In order to achieve the above object, the present invention is a kind of apparatus for coating, and it has: bag (pocket) portion, and it is used for the width expansion of cleaning fluid along the tablet that moves that is coated with alkaline aqueous solution; Supply opening, it is used for supplying with cleaning fluid to described bag portion; The slit ejiction opening, it is used for from described bag portion described cleaning fluid being ejected into described tablet; And slit, it is used to make described cleaning fluid to pass through from described bag portion to described slit ejiction opening, described apparatus for coating is characterised in that, is provided with sept at the two ends of described slit, is formed with on this sept: the distance back and the parallel part of described slit ejiction opening of the described bag of distance portion regulation; Make the sloping portion of cleaning fluid with producing to the ejection angle of tablet central portion inclination at described slit ejiction opening.
According to the present invention, when cleaning fluid flow into slit from bag portion, utilize the sept part parallel, the spouting velocity of slit end is risen with the slit ejiction opening, utilize the sloping portion of sept, can not set the ejection angle so that rinse water does not enter the mode of the rear side of tablet.Thereby can suppress to clean the not fault of the good lip portions that causes, this cleaning is not good to be unstable caused by the spouting velocity of the cleaning fluid that is ejected into the tablet lip portions or ejection angle.
Preferred afore mentioned rules distance is more than the 3mm.By making the afore mentioned rules distance, the spouting velocity of the cleaning fluid that sprays to the tablet end is risen for more than the 3mm.
In sept of the present invention, preferably between above-mentioned parallel part and above-mentioned sloping portion, be formed with and the vertical part of above-mentioned slit ejiction opening.By being formed with the part with this slit ejiction opening approximate vertical, spouting velocity is further risen, therefore, can further suppress by cleaning the not fault of the good lip portions that causes.In addition, in this manual, so-called parallel or vertically be not limited only to proper parallel or vertical, also span proper parallel or vertical ± 20 ° in.
In the present invention, the ejection angle θ of preferred above-mentioned cleaning fluid (°) and cleaning fluid be made as from the relation between the spouting velocity v (m/s) of slit ejiction opening ejection and satisfy θ＜5.87v
2The scope of-16.0v+27.2 more preferably is made as and satisfies θ≤(scope of 41.7 * Ln (v))-25.8.By being made as this scope, can suppress by cleaning the not fault of the good lip portions that causes.
Form the coated film product by making employing apparatus for coating of the present invention clean the tablet that obtains, the fault of tablet end is less, and is therefore preferred.In addition, this coated film product preferably is used for the optical compensating film of liquid crystal indicator.
As described above, according to apparatus for coating of the present invention, when the alkaline aqueous solution to tablet cleans, can suppress to be ejected into the spouting velocity of cleaning fluid of tablet lip portions or the instability of ejection angle effectively.Thereby the coated film product that uses apparatus for coating of the present invention to make can be provided at the also less coated film product of tablet end fault.
Description of drawings
Fig. 1 is the key diagram of the production line of explanation optical compensating film.
Fig. 2 is the side sectional view of apparatus for coating of the present invention.
Fig. 3 is the key diagram of explanation apparatus for coating of the present invention.
Fig. 4 is the key diagram of the another way of explanation apparatus for coating of the present invention.
Fig. 5 is the result of expression when having carried out the experiment of a sept of the present invention table.
Fig. 6 is the curve map of expression result of experiment.
Symbol description:
10 production lines, 12 gravure roll, 13 backer rolls, 14 liquid-bearing pans, 16 thin polymer films (tablet), 20 painting process, 22 coating machines, 24 mattings, 25 apparatus for coating, 26 apparatus for coating, 28 drying devices, 32 slits, 46 bags of portions, 48 bags of bolts, 54 septs, 68 deflector rolls, 70 friction treatment devices, 72 friction rollers, 74 dust removal machines, 75 apparatus for coating, 76 drying devices, 77 back segment drying devices, 78 heaters, 80 ultraviolet lamps, 82 up-coilers
The specific embodiment
According to the following drawings the situation that the preferred implementation of apparatus for coating of the present invention is used for the production line of optical compensating film is elaborated.
Fig. 1 is the figure of the production line of expression optical compensating film, illustrates successively up to each operation of making optical compensating film.
[manufacturing of alkali soap fluidized polymer film]
As shown in Figure 1, the manufacture method of alkali soap fluidized polymer film mainly is made of following operation: alkaline aqueous solution is coated on from sending the thin polymer film 16 that machine 66 sends comes film surface is carried out the painting process 20 of saponification; From on the thin polymer film of alkali soap processing alkaline aqueous solution being washed and is carried out the matting 24 of drying.And, in the present invention, in painting process 20, recycling the lip-deep alkaline aqueous solution that is coated on thin polymer film, the alkaline aqueous solution pipeloop that is used to recycle illustrates subsequently.
In painting process 20, utilize coating machine 22 that alkaline aqueous solution is coated on the thin polymer film 16.About coating method, can adopt variety of way, but consider and be used to wash the liquid waste processing of removing subsequently, preferably suppress the coating weight of alkaline aqueous solution as far as possible, this coating weight is preferably 1～100cc/m
2, 1～50cc/m more preferably
2, therefore, even especially preferably metering bar coater, intaglio plate coating machine, knife type coater, the mould that also can stably be coated with in the zone of less coating weight is coated with machine.In addition, the alkaline aqueous solution and thin polymer film carried out in order easily alkaline aqueous solution to be washed from thin polymer film, preferably alkaline aqueous solution being coated on the lower surface of thin polymer film after saponification handles.
For the required alkali coating weight of saponification, with saponification point (site) number of the per unit area of thin polymer film multiply by for embody and alignment films between the required saponification degree of depth of driving fit and total saponification of obtaining count (=theoretical alkali coating weight) be target.Along with the carrying out of saponification, alkali is consumed, and reaction speed reduces, and therefore preferably in fact is coated with several times of above-mentioned theory alkali coating weight.Particularly, 2～20 times of preferably theoretical alkali coating weight are more preferably 2～5 times.
The temperature of alkaline aqueous solution preferably equates with reaction temperature (temperature of=thin polymer film).According to the difference of the kind of employed organic solvent, reaction temperature surpasses the boiling point of alkaline aqueous solution sometimes.In order to carry out stable coating, preferably than the low-boiling temperature of alkaline aqueous solution, more preferably hang down 5 ℃ temperature than the boiling point of alkaline aqueous solution, most preferably hang down 10 ℃ temperature than the boiling point of alkaline aqueous solution.
After the alkaline aqueous solution, finish up to saponification, preferably the temperature with thin polymer film remains more than the room temperature.The temperature of thin polymer film both can be identical with the temperature that before the alkaline aqueous solution, heats also can be different.In addition, also can in the saponification process, temperature be changed continuous or interimly.The temperature of film is 15～150 ℃, is preferably 25～100 ℃, more preferably 30～80 ℃.
The alkaline aqueous solution but preferably kept for 1 second～300 second before cleaning and keep the time of said temperature scope to depend on transporting velocity, more preferably kept for 2～100 seconds, especially preferably kept for 3～50 seconds.
Be coated on the film surface and resulting thin polymer film is cleaned in next matting 24 by saponification at the painting process 22 neutral and alkali aqueous solution.
Cleaning in the matting 24 can adopt the coating rinse water method, blow the method for rinse water or the method that is impregnated in the container that rinse water is housed together with thin polymer film is implemented.
The method that blows of water adopts the method for using dispense tip (for example spray formula spreader, frog mouth formula spreader (frogmouth coater)) usually or uses the method for the spray nozzle that utilizes in the automatic cleaning of the humidification of air or application, container to implement.
At this, in the present invention, adopt to make the rinse water that supplies to bag portion be ejected into the thin polymer film (tablet) that moves that is coated with alkaline aqueous solution thereby the apparatus for coating (sealing spray mould) that upward this tablet is cleaned from the slit ejiction opening via slit.
Fig. 2 is in the apparatus for coating 25 in matting 24 of the present invention, the upstream side of apparatus for coating and downstream dispose with tablet 16 be pressed against the dispense tip side by the side sectional view under the situation of pressure roller 38,38.In addition, as another way, also can dispose applicator roll relative with the top of apparatus for coating 10 and engaging support tablet 16.In addition, Fig. 3 is the key diagram of explanation major part of the present invention.
The matting 24 of Fig. 2 is mainly by making cleaning fluid approaching a pair of of the tablet 16 that moves continuously along the direction of arrow and the top ends of apparatus for coating 25 constitute by pressure roller 38,38 from the dispense tip of slit ejiction opening 32A ejection with pressed state via slit 32.
Apparatus for coating 25 is made of these two assemblies that comprise the 2nd edge part 42 and the 1st edge part 40, the 2nd edge part 42 is the downstream that the boundary is positioned at the tablet moving direction with slit 32, the 1st edge part 40 is positioned at the upstream side of tablet moving direction, and the 2nd edge part 42 and the 1st edge part 40 are with state relative dispose approaching with the tablet that moves continuously 16.
In the inside of apparatus for coating 25, be formed with the bag portion 46 of tubular along the width of tablet 16, bag portion 46 is communicated with above-mentioned slit 32.And, the cleaning fluid that supplies to bag portion 46 expanded stream become with the corresponding width of coating width after, slit 32 is risen and, tablet 16 is cleaned (with reference to Fig. 3) from slit ejiction opening 32A ejection.
Shown in Fig. 3 (A), be provided with bag bolt 48 at the peristome of the perforation of bag portion 46.The opposing party at bag bolt 48 is provided with the supply opening 49 that is used for side supply cleaning fluid, is connected with feed pipe 50 by making this supply opening 49, and cleaning solution supplying is arrived bag portion 46.In addition, if the liquor charging pipeline that coating fluid is transported to feed pipe 50 can make cleaning fluid continuously and with constant liquid measure liquor charging to bag portion 46.
In the apparatus for coating 25 that forms like this, existence can not suppress to clean the not such shortcoming of fault of the good lip portions that causes, and this cleanings is not good to be to be caused by spouting velocity that is ejected into the cleaning fluid on the tablet lip portions or the instability that sprays angle.
Therefore, in the present invention, shown in Fig. 3 (A), on slit 32, be provided with sept 54, be formed with on this sept: after the distance X of stipulating apart from bag portion 46 with the parallel part 54a of slit ejiction opening 32A; Produce the sloping portion 54b of the ejection angle of cleaning fluid at the slit ejiction opening.In addition, Fig. 3 (B) is the cutaway view of major part of the apparatus for coating 25 of Fig. 3 (A).
By be provided with such sept 54 at both ends, in rinse water when bag portion 46 flow into slit 32, utilize the part 54a parallel of sept 54 with the slit ejiction opening, the spouting velocity of the cleaning fluid of the slit end among the slit ejiction opening 32A is risen, utilize the part 54b of the inclination of sept 54, can set the ejection angle of cleaning fluid in the mode that does not enter the tablet rear side, therefore, can suppress to clean the not fault of the good lip portions that causes, this cleaning is not good be by the spouting velocity that is ejected into the cleaning fluid on the tablet lip portions or the ejection angle instability cause.
The distance X of preferred regulation is more than the 3mm.By making the afore mentioned rules distance, the spouting velocity of the cleaning fluid that sprays to the tablet end is risen for more than the 3mm.
In addition, at this, the part 54a parallel with slit ejiction opening 32A of sept 54 can be not parallel fully with slit ejiction opening 32A, and to form with the mode of slit ejiction opening 32A angulation less than 30 °.
At this, preferably between the parallel part 54a and sloping portion 54b of the sept 54 of Fig. 3 of the present invention (A), be formed with part 54c as shown in Figure 4 with slit ejiction opening 32A approximate vertical.
By being formed with the part 54c with this slit ejiction opening approximate vertical, spouting velocity is risen, therefore, can further suppress by cleaning the not fault of the good lip portions that causes.The table of result when the value that Fig. 5 is expression by L1, the L2 of the sept 54 of the apparatus for coating 25 that changes Fig. 4, θ 1 experimentizes.In addition, in this experiment, the predetermined distance X shown in Fig. 3 (A) is 3mm.
The spouting velocity v of the rinse water in this experiment and ejection angle θ also are illustrated in the table of Fig. 5.
With spouting velocity v is that transverse axis, ejection angle θ are the longitudinal axis and be Fig. 6 with the curve map that the result of this Fig. 5 forms.In addition, at this, " LL printing " is meant the state of the bright spot that size is big, and " leak white (Bai order け) fault " is meant the low state of brightness of bright spot.In addition,, seen that improving effect is designated as zero, improved the less △ of being designated as of effect about estimating, do not improve effect to be designated as *.
In the present invention, the ejection angle θ of preferred above-mentioned cleaning fluid (°) and cleaning fluid be made as from the relation between the spouting velocity v (m/s) of slit ejiction opening ejection and satisfy θ＜5.87v
2The scope of-16.0v+27.2.More preferably be made as and satisfy θ≤(scope of 41.7 * Ln (v))-25.8.By being made as this scope, can suppress by cleaning the not fault of the good lip portions that causes.In addition, above-mentioned formula is to represent the formula of the point that marked approx with least square method.
For rinse water, preferably use pure water.For the used pure water of the present invention, be at least more than the 0.1M Ω than resistance, metal ions such as preferred especially sodium, potassium, magnesium, calcium are less than 1ppm, and the anion of chlorine, nitric acid etc. is less than 0.1ppm.
The temperature height of rinse water, then cleansing power is strong.But, in Jiang Shui was blown into method on the thin polymer film of being carried, the area of the water that contacts with air was bigger, and temperature is high more, evaporated significantly more, and therefore the humidity around increases, and the danger of dewfall increases.Therefore, the temperature of rinse water is set in 5～90 ℃ scope usually, preferably sets the scope at 25～80 ℃, more preferably is set in 25～60 ℃ scope.
The composition of alkaline aqueous solution or the product of saponification are not easy under the water-soluble situation, also can be before or after matting, and the additional solvent clean operation that is used to remove water-fast composition.The solvent clean operation can be utilized above-mentioned method for washing, remove the moisture means.
Also and then matting 24 is provided with drying process (not shown).Usually many employing air knives etc. are removed the moisture means and are removed moisture film fully, do not need drying process sometimes, but also can carry out heat drying in order to be adjusted to preferred moisture content before thin polymer film is wound into web-like.On the contrary, also can adopt wind to carry out damping with the humidity that sets.The temperature of dry wind is preferably 30～200 ℃, more preferably 40～150 ℃, is preferably 50～120 ℃ especially.
In the present invention, the alkaline aqueous solution that is used for alkali soapization preferably pH be alkaline aqueous solution more than 11.Being more preferably pH is 12～14.
Example as the alkaline agent that is used for alkaline aqueous solution, also can adopt inorganic alkaline agents such as NaOH, potassium hydroxide, lithium hydroxide, perhaps diethanol amine, triethanolamine, DBU (1,8-diazabicyclo [5,4,0]-the 7-endecatylene), DBN (1,5-diazabicyclo [4,3,0]-the 5-nonene), organic alkaline agent such as TMAH, tetraethyl ammonium hydroxide, TPAOH, TBAH, triethyl group butyl ammonium hydroxide.These alkaline agents can use or make up two or more the use separately, also can add a part with the form of the salt of for example halogenization.
The concentration of the alkaline agent in the alkaline aqueous solution decided according to kind, reaction temperature and the reaction time of employed alkaline agent.For the content of alkaline agent, the concentration of the hydroxide ion in the alkaline aqueous solution is preferably 0.1～5mol/kg, more preferably 0.3～3mol/kg.
The solvent of alkaline aqueous solution is water and as the mixed solution of the alcohol of water-miscible organic solvent preferably.As organic solvent, preferred boiling point is below 120 ℃, more preferably 60～120 ℃, is preferably 60～100 ℃ especially.
[formation of alignment films]
As shown in Figure 1, the above-mentioned thin polymer film of being handled by saponification like that forms coating fluid with resin, utilizes drying device 28 to make the coating fluid drying form transparent resin layer by utilizing apparatus for coating 26 coatings to contain alignment films.
Alignment films is more preferably and is made of two kinds of crosslinked polymer.Side in two kinds of polymer is polymer that himself can be crosslinked or is crosslinked the crosslinked polymer of agent.Alignment films can be utilized light, heat or pH to change to make polymer with functional group or functional group be imported in the polymer and the material that forms reacts between polymer and forms, and the linking group that perhaps uses crosslinking agent as the high compound of reactivity will derive from crosslinking agent imports between the polymer, form carrying out crosslinked between the polymer.
Polymer crosslinked can be after the coating fluid that will contain the mixture of polymer or polymer and crosslinking agent is coated on the thin polymer film, implement by heating.Can alignment films is coated be located on the thin polymer film after, carrying out crosslinking Treatment up to the arbitrary stage that obtains optical thin film.When considering the orientation of the compound with disc-shaped structure (optical anisotropic layer) that is formed on the alignment films, also preferably after making compound orientation, carry out final crosslinked with disc-shaped structure.Be about to contain under the situation that can be coated on the coating fluid that polymer and polymer carry out crosslinked crosslinking agent on the thin polymer film, after the heat drying, carry out friction treatment, form alignment films, then, the coating fluid that will contain the compound with disc-shaped structure unit is coated on this alignment films, be heated to plate-like nematic phase formation temperature above after, cool off and form optical anisotropic layer.
The employed polymer of alignment films can use polymer that himself can be crosslinked or be crosslinked in the crosslinked polymer of agent any, also can use a plurality of their combinations.As the example of polymer, can list polymethyl methacrylate, acrylic acid/methacrylic acid copolymer, styrene/maleimide copolymer, polyvinyl alcohol and modified polyvinylalcohol, poly-(N hydroxymethyl acrylamide), styrene/ethylene base toluene copolymer, chlorosulfonated polyethylene, celluloid, polyvinyl chloride, chloridized polyolefin, polyester, polyimides, vinylacetate/vinyl chloride copolymer, ethylene/vinyl acetate copolymer, carboxymethyl cellulose, gelatin, polyethylene, compounds such as polymer such as polypropylene and Merlon and silane coupler.Preferred example as polymer, be water-soluble polymers such as poly-(N hydroxymethyl acrylamide), carboxymethyl cellulose, gelatin, polyvinyl alcohol and modified polyvinylalcohol, more preferably gelatin, polyvinyl alcohol and modified polyvinylalcohol, the special pure and mild modified polyvinylalcohol of preferably polyethylene, preferred especially also with two kinds of polyvinyl alcohol or modified polyvinylalcohols that the degree of polymerization is different.
The saponification degree of preferably polyethylene alcohol is 70～100%, more preferably 80～100%, most preferably be 85～95%.The degree of polymerization of preferably polyethylene alcohol is 100～3000.The modification group of modified polyvinylalcohol can utilize modification by copolymerization, chain to shift modification or the block polymerization modification imports.
Wherein, most preferably saponification degree is 85～95% unmodified polyethylene alcohol or alkylthio group modified polyvinylalcohol.
As polymer (preferred water soluble polymer; more preferably polyvinyl alcohol or modified polyvinylalcohol) the example of crosslinking agent; comprise: aldehyde (formaldehyde for example; glyoxal; glutaraldehyde); N-methylol compound (dimethylol urea for example; methylol dimethyl hydantion appropriate because of) dioxane derivatives (for example 2; 3-Er Qiang Ji diox); compound by activated carboxylic is worked (carbonium ion for example; the 2-naphthalene sulfonate; 1; the two pyrrolidines of 1--1-chloro-pyridine; 1-morpholino carbonyl-3-(sulfonic acid amino methyl ester); active vinyl compound (for example 1; 3; 5-triacryl-six hydrogen-s-triazine; two (ethene sulfuryl) methane; N '-di-2-ethylhexylphosphine oxide-[β-(ethene sulfuryl) propionamide]); active halogen compound (for example 2,4-two chloro-6-hydroxyl-s-triazines); isoxazole and dialdehyde starch.Also can use two or more crosslinking agents simultaneously.The active high aldehyde of preferred reaction, preferred especially glutaraldehyde.
For the addition of crosslinking agent, be preferably 0.1～20 quality % with respect to polymer, more preferably 0.5～15 quality %.The amount that preferably remains in the unreacted crosslinking agent of alignment films is below the 1.0 quality %, more preferably below the 0.5 quality %.When in alignment films, crosslinking agent being arranged, can't obtain sufficient durability so that the amount that surpasses 1.0 quality % is remaining.When such alignment films is used in liquid crystal indicator, under the situation under the environment that uses or be placed on for a long time high temperature, high humidity for a long time, produce reticulate pattern sometimes.
Alignment films basically can by will contain crosslinking agent above-mentioned polymer-coated as the orientation film formation material on thin polymer film after, carry out heat drying (making crosslinked), friction treatment forms.As mentioned above, cross-linking reaction is carried out any period after also can be on being coated on thin polymer film.Under the situation of the water-soluble polymer that polyvinyl alcohol is such as the orientation film formation material, preferred coating fluid is the organic solvent (for example methyl alcohol) with froth breaking effect and the mixed solvent of water.Preferred its ratio is water by quality ratio: methyl alcohol is 0: 100～99: 1, more preferably 0: 100～91: 9.Thus, can suppress to produce bubble, the defective on the surface of alignment films, especially optical anisotropic layer significantly reduces.
As the coating process of alignment films, be preferably spin-coating method, dip coated method, curtain formula rubbing method, extrusion coated method, rod and be coated with method or rolling method.Preferred especially rod is coated with method.In addition, preferred dried film thickness is 0.1～10 μ m.Can under 20 ℃～110 ℃, carry out heat drying.Crosslinked fully in order to form, preferably under 60 ℃～100 ℃, carry out, under 80 ℃～100 ℃, carry out.Can carry out drying time at 1 minute～36 hours, but be preferably 1 minute～30 minutes.PH also preferably sets with the optimal value of employed crosslinking agent, and under the situation of using glutaraldehyde, pH is 4.5～5.5, is preferably 5 especially.
Alignment films is arranged on the thin polymer film.Oriented web also can by as mentioned above like that to polymeric layer carry out crosslinked after, utilize 70 pairs of surfaces of friction treatment device to carry out friction treatment to obtain.Thus, on transparent resin layer, form alignment films.Alignment films is in order to stipulate to be provided with to the differently-oriented directivity of establishing liquid crystal liquid crystal property discotic compound thereon.
Friction treatment goes for the processing method that is widely adopted as the liquid crystal aligning treatment process of LCD.Promptly can adopt method by using paper, tulle, felt, rubber or nylon, polyester fiber etc. to obtain to be orientated along the surface of constant direction friction orientation film.Usually, by using the friction about the cloth of planting hair fifty-fifty etc. carries out for several times to length and true fibre to implement.
In friction treatment device 70, preferably friction roller 72,72 is configured between two conveying rollers of the continuous conveying in-process that is in thin polymer film 16, make thin polymer film 16 be involved in this friction roller 72,72 of rotation on one side, carry this thin polymer film 16 on one side, thereby continuously friction treatment is implemented on the surface of thin polymer film 16.In this case, also can make rotating shaft dispose friction roller 72,72 obliquely with respect to the throughput direction of thin polymer film 16.Circularity, cylindricity, the deviation of preferred friction roller 72 self all are below the 30 μ m.In the device of the rubbing method that adopts above-mentioned record, preferably in device, possesses the friction roller of the preparation more than 1 cover.Utilize dust removal machine 74 can remove lip-deep dust attached to thin polymer film 16.
[formation of optical anisotropic layer]
The optical anisotropic layer of optical compensating film is formed on the alignment films.
Utilize the coating fluid (liquid-crystal compounds solution) that gravure coating apparatus 75 will contain the liquid crystal liquid crystal property discotic compound to be coated on the orientation rete of thin polymer film 16.As the liquid crystal liquid crystal property discotic compound, adopt liquid crystal liquid crystal property discotic compound with bridging property functional group.
Gravure coating apparatus 75 is provided with liquid-bearing pan 14 below gravure roll 12, be full of coating fluid in this liquid-bearing pan 14.And about the latter half of gravure roll 12 is immersed in the coating fluid.Utilize this structure, coating fluid is fed in the unit on gravure roll 12 surfaces.Upstream deflector roll 17 and downstream deflector roll 18 are supported with the state parallel with gravure roll 12.And, can rotate the two end portions that supports upstream deflector roll 17 and downstream deflector roll 18 freely by bearing components (ball bearing etc.), the preferred not structure of tape drive mechanism.Gravure coating apparatus 75 preferably is arranged in the atmosphere of cleanings such as clean room.At this moment, cleannes are preferably grade below 1000, and more preferably grade is below 100, and more preferably grade is below 10.
In addition, as apparatus for coating, be that example is represented with gravure coating apparatus 75, but be not limited to this.For example, can suitably use methods such as dip coated method, airblade coating method, curtain formula rubbing method, rolling method, coiling rod rubbing method, nick version rubbing method, extrusion coated method.
Then, device 76 dryings of utilizing the coating of coating fluid and the thin polymer film 16 that is formed with coated film is dried.In this case, preferably thin polymer film 16 by back 3 seconds of gravure coating apparatus 75 (more precisely gravure roll 12) in, or this organic solvent of being contained during with respect to the coating of coating fluid up to the containing ratio of this organic solvent by gravure coating apparatus 75 beginnings of thin polymer film 16 imported in the drying device 76 with interior less than arbitrary short time of 50% (being more preferably less than 70%).
Then, preferably in drying device 76,50% below of concentration (half below) of the organic solvent composition the when concentration of carrying out dry organic solvent composition in coated film reduces to coating or the viscosity of coated film reach the arbitrary moment than morning more than the 10mPas.
Then, will be in the drying device 76 dry thin polymer film of having finished 16 is by back segment dry section 77, the thermal treatment zone 78 and the ultraviolet lamp 80 of Fig. 1.Thus, the coating layer of the thin polymer film 16 that has been dried is heated and forms the nematic liquid crystal layer of plate-like, penetrates this liquid crystal layer by making illumination continuously, and discotic mesogenic is solidified.In this case, preferably apply hot blast or far infrared or make it contact the heating of carrying out the thermal treatment zone 78 with warm-up mill by a side that does not have liquid crystal layer to thin polymer film 16.Perhaps, preferably apply hot blast or far infrared carries out by two surfaces to thin polymer film 16.Then, the thin polymer film that will be formed with alignment films and liquid crystal layer is reeled with up-coiler 82.
More than the preferred implementation with apparatus for coating of the present invention is used for the production line of optical compensating film situation be illustrated, but apparatus for coating of the present invention also can preferably using when the tablet that is coated with alkaline aqueous solution is cleaned beyond the manufacturing of optical compensating film.
Claims (7)
1. apparatus for coating, it has: bag portion, it is used for the width expansion of cleaning fluid along the tablet that moves that is coated with alkaline aqueous solution; Supply opening, it is used for supplying with cleaning fluid to described bag portion; The slit ejiction opening, it is used for from described bag portion described cleaning fluid being ejected into described tablet; And slit, it is used to make described cleaning fluid to pass through from described bag portion to described slit ejiction opening, and described apparatus for coating is characterised in that,
Two ends at described slit are provided with sept,
Be formed with on this sept: the distance back and the parallel part of described slit ejiction opening of the described bag of distance portion regulation; Make the sloping portion of cleaning fluid with producing to the ejection angle of tablet central portion inclination at described slit ejiction opening.
2. apparatus for coating according to claim 1 is characterized in that, the distance of described regulation is more than the 3mm.
3. apparatus for coating according to claim 1 and 2 is characterized in that, between described parallel part and described sloping portion, is formed with and the vertical part of described slit ejiction opening.
4. apparatus for coating according to claim 1 and 2 is characterized in that, the ejection angle θ of described cleaning fluid and cleaning fluid are made as from the relation between the spouting velocity v of slit ejiction opening ejection and satisfy θ＜5.87v
2The scope of-16. θ v+27.2, the unit of described ejection angle is ° that the unit of described spouting velocity is m/s.
5. apparatus for coating according to claim 4, it is characterized in that, the ejection angle θ of described cleaning fluid and cleaning fluid are made as from the relation between the spouting velocity v of slit ejiction opening ejection and satisfy θ≤(scope of 41.7 * Ln (v))-25.8, the unit of described ejection angle is ° that the unit of described spouting velocity is m/s.
6. the manufacture method of a coated film product is characterized in that, the tablet that uses claim 1 or 2 described apparatus for coating to clean and obtain is formed the coated film product.
7. the manufacture method of coated film product according to claim 6 is characterized in that, described coated film product is the optical compensating film that is used for liquid crystal indicator.
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| JP2009285227A JP5409322B2 (en) | 2009-12-16 | 2009-12-16 | Coating apparatus and manufacturing method of coating film product using the coating apparatus |
| JP285227/2009 | 2009-12-16 |
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| CN102101095A true CN102101095A (en) | 2011-06-22 |
| CN102101095B CN102101095B (en) | 2015-03-18 |
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|---|---|---|---|---|
| CN106733411A (en) * | 2017-01-09 | 2017-05-31 | 云南中烟工业有限责任公司 | A kind of application of hot rollers machine with ullrasonic spraying |
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| JPH07256185A (en) * | 1994-03-18 | 1995-10-09 | Tdk Corp | Coating applicator and coating applying and washing method using the same |
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| JP3583101B2 (en) * | 2001-12-21 | 2004-10-27 | 松下電器産業株式会社 | Method for producing electrode plate for battery and coating apparatus |
| JP2003313326A (en) * | 2002-02-20 | 2003-11-06 | Fuji Photo Film Co Ltd | Method for alkali saponification of polymer film, surface saponified cellulose ester film, and optical film using the same |
| JP2009202141A (en) * | 2008-02-29 | 2009-09-10 | Toray Eng Co Ltd | Slit die and slit die coater |
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| US5389150A (en) * | 1993-03-26 | 1995-02-14 | Eastman Kodak Company | Coating hopper inserts |
| JPH08182955A (en) * | 1994-12-28 | 1996-07-16 | Tdk Corp | Coating applicator of extrusion type |
| JPH11179260A (en) * | 1997-12-19 | 1999-07-06 | Fuji Photo Film Co Ltd | Coating width changing device |
| JP2002254006A (en) * | 2001-02-28 | 2002-09-10 | Mitsubishi Paper Mills Ltd | Coating device |
| JP2004283779A (en) * | 2003-03-25 | 2004-10-14 | Hirata Corp | Liquid coating device and liquid coating method |
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| CN106733411A (en) * | 2017-01-09 | 2017-05-31 | 云南中烟工业有限责任公司 | A kind of application of hot rollers machine with ullrasonic spraying |
| CN106733411B (en) * | 2017-01-09 | 2022-11-18 | 云南中烟工业有限责任公司 | Hot roller coating machine with ultrasonic spraying function |
Also Published As
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| JP2011125777A (en) | 2011-06-30 |
| CN102101095B (en) | 2015-03-18 |
| JP5409322B2 (en) | 2014-02-05 |
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