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1. 发明专利

JP2004098573A Method for film depositing solution, polymer film, polarizing plate, optical compensation film, liquid crystal display device and photographic photosensitive material 有权
公开(公告)号：JP2004098573A
公开(公告)日：2004-04-02
申请号：JP2002265897
申请日：2002-09-11
申请人： Fuji Photo Film Co Ltd , 富士写真フイルム株式会社
发明人： KATO MORITAKA , SUZUKI YUJI , NAKAMURA TOSHIKAZU
IPC分类号： G03C1/795 , B29C41/26 , B29C41/48 , B29K1/00 , B29L7/00 , G02B5/30 , G02F1/1335
摘要： PROBLEM TO BE SOLVED: To prevent a brush of a tenter introduction and a film from being adhered in a method for making a film from a solution.
SOLUTION: A cellulose triacetate is doped with a methylene chloride solvent or a methyl acetate solvent and is film deposited. The film 14 before it is introduced into the tenter 30 is dried. A wind is fed by first and second chambers 20, 21 on above and below the film 14. The chamber 20 is disposed within 200mm above a releasing surface side from a drum 13 of the film 14, and a dry wind having a wind speed of 1-15m/s and a temperature of -10 to 50°C is fed to both side ends of the film 14. The film 14 is stably introduced into the tenter without adhering to the brush 33. The obtained film 14 is proper without surface fault. A polarizing plate which uses this, an optical compensation film, a liquid crystal display device and a photographic photosensitive material all have high quality.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JPH09225953A PRODUCTION OF SUPPORT FOR PHOTOGRAPH 失效
公开(公告)号：JPH09225953A
公开(公告)日：1997-09-02
申请号：JP6192396
申请日：1996-02-23
申请人： FUJI PHOTO FILM CO LTD
发明人： SUZUKI YUJI , ISHIKAWA TOKUO , SAKAMAKI SATOSHI
IPC分类号： G03C1/795 , B05D1/26 , B05D5/00 , B29C41/12 , C08J7/04
摘要： PROBLEM TO BE SOLVED: To obtain a production method for a cellulose triacetate film having a good planarity and avoiding a face failure damaging the transparency by a high speed film forming in a high temperature drying. SOLUTION: This device has a dry part 20 for drying a cellulose triacetate film stripped from a band or a drum formed by casting a dope for a cellulose triacetate film and a plane improvement part 50 to flatten the cellulose triacetate film. The planarity improvement part have a heating roller 54 and a cooling roller 56 for heating and cooling the cellulose triacetate film. Then, in forming a film consecutively on a coating part 60 on the upstream side of the plane improvement part, a cation polymer or an anion polymer is imparted to a top layer or a neighbourhood thereof of the film formed on the cellulose triacetate film.

3. 发明专利

JPH06155494A METHOD FOR LIQUID FILM FORMATION 失效
公开(公告)号：JPH06155494A
公开(公告)日：1994-06-03
申请号：JP33386192
申请日：1992-11-20
申请人： FUJI PHOTO FILM CO LTD
发明人： SUZUKI YUJI , YAMAZAKI HIDEKAZU , KENMOCHI RYUTARO
IPC分类号： B29C41/12 , B29C41/50 , B29C48/305 , B29L7/00 , B29C47/14
摘要： PURPOSE:To furnish a method for liquid film formation which prevents wavy nonuniformity due to air flowing into an end part of a pressure reducing chamber. CONSTITUTION:Openings 11 of suction pipings 10 for pressure reduction are provided at positions located in a range of 0 to 0.3 times as large as the whole width from the opposite ends in the width direction of a pressure reducing chamber 9, and a polymer solution is extruded while/the pressure of air in the vicinity of the back of an extruding part of an extruder die is reduced. In another way, partition plates dividing an area including the openings 11 of the suction pipings 10 in the pressure reducing chamber 9 at the back of the extruder die and an area not including the openings 11 are provided, a gap between the partition plates and a support running continuously is made 0.5 to 20mm, and by using equipment constructed in this way, the polymer solution is extruded while the pressure of the air in the vicinity of the back of the extruding part of the extruder die is reduced. In still another way, a plurality of labyrinth type seal plates are disposed in the vicinity of the opposite end parts in the width direction of the pressure reducing chamber 9, and the polymer solution is extruded while the air in the vicinity of the back of the extruding part of the extruder die is sucked from the openings 11 of the suction pipings for pressure reduction.

4. 发明专利

JPH05185445A METHOD FOR MAKING LIQUID FILM 失效
公开(公告)号：JPH05185445A
公开(公告)日：1993-07-27
申请号：JP1938992
申请日：1992-01-09
申请人： FUJI PHOTO FILM CO LTD
发明人： SUZUKI YUJI , YAMADA RYOSUKE
IPC分类号： B29C41/26 , B29K1/00 , B29L7/00 , C08J5/18 , C08L1/00 , G03C1/795
摘要： PURPOSE:To prevent a film from slackening and flapping by setting the temp. of air for drying for a specified conveying time from the peeling-off point when a cellulose triacetate film used for a photographic photosensitive material etc., is prepd. by casting a soln. on a substrate. CONSTITUTION:A cellulose triacetate film 3 cast on a rotating drum 6 from a casting die 1 is dried and cooled for solidification on the drum a and is then peeled off at a peeling-off point 4 on the drum 6 as a film 5, which is conveyed by conveying rollers 7(71, 72,...) and is introduced into a tenter conveying zone 11 and is dried from both faces. In such a film-making method as this, when the wt. ratio of an org. solvent in the film peeled off from the drum 5 is 68wt.% or more, the temp. of air for drying is set at 30-80 deg.C during the conveying time from the peeling-off point is at least 20 sec. Drying of the film 5 is performed rapidly thereby to solidify the film 5 and to attempt to stabilize conveying.

5. 发明专利

JPH03193316A METHOD FOR FORMING FILM OUT OF SOLUTION 失效
公开(公告)号：JPH03193316A
公开(公告)日：1991-08-23
申请号：JP33255189
申请日：1989-12-25
申请人： FUJI PHOTO FILM CO LTD
发明人： SUZUKI YUJI , ONO KAZUHIRO , SAITO HIROKI
IPC分类号： B29C41/12 , B29C41/24 , B29C41/46 , B29C41/50 , B29L7/00
摘要： PURPOSE:To eliminate the condensation of solvent vapor in a vacuum chamber and consequently prevent trouble of falling drops from occurring and make the increase of casting speed possible by a method wherein polymer solution dissolved in organic solvent is cast from a die on a backing and the inner wall temperature of the vacuum chamber, which evacuate the casting part from the rear of the die, is held higher than the condensation point of the organic solvent to be sucked. CONSTITUTION:Polymer solution, which is prepared by dissolving cellulose triacetate or cellulose diacetate with organic solvent such as methylene chloride, methanol or the like is cast on the surface of backing such as endless belt 5 or drum so as to form the film concerned. Further, the inner wall temperature of a vacuum chamber 9, which evacuates the rear face of the casting part 2 from the rear of a die 1, is held higher than the condensation point of the organic solvent to be sucked. In order to keep the inner wall higher than said temperature, any heat transferring means such as transmission, convection and radiation may well be employed. The preferable heat source is the heating by means of steam or not water. By the above-mentioned method, no condensation of the solvent vapor occurs in the vacuum chamber and consequently no dripping of condensate from the inner wall onto the backing occurs, resulting in eliminating the development of 'trouble of falling drops'.

6. 发明专利

JP2006281772A Solution casting method of film 有权
标题翻译：电影铸造方法
公开(公告)号：JP2006281772A
公开(公告)日：2006-10-19
申请号：JP2006056557
申请日：2006-03-02
申请人： Fuji Photo Film Co Ltd , 富士写真フイルム株式会社
发明人： HIGUCHI JIRO , KATO MORITAKA , SUZUKI YUJI
IPC分类号： B29C41/50 , B29C41/24 , B29L7/00
CPC分类号： B29C41/26 , B29C47/0021 , B29C47/8865 , B29K2001/00
摘要： PROBLEM TO BE SOLVED: To provide a polymer film of controlled fluctuation in thickness. SOLUTION: A dope containing a polymer and a solvent is discharged from a casting die 30. The dope touches down to a casting drum 31 while forming a casting bead 38, and is cast along with traveling of the casting drum 31. Backside 38a of the casting bead is decompressed to (atmospheric pressure -300) Pa by a decompression chamber 36. Air shielding plates 70 and 71, to block an associated wind from the casting drum 31, are provided inside the decompression chamber 36. Openings 90 for air passage are formed in upper half portions of the shielding plates 70 and 71. The associated wind is blocked by setting the distance L (mm), between the contact position A of the casting bead and the shielding plate 70, in the range of 20 mm to 100 mm. The associated wind is prevented from hitting the casting bead 38. A cast film 39 is peeled from the casting drum 31, and dried to make the polymer film. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供控制的厚度波动的聚合物膜。解决方案：含有聚合物和溶剂的涂料从铸模30中排出。涂料在形成铸造珠38的同时接触流延鼓31，并与流延鼓31的行进一起铸造。背面 38a通过减压室36减压至（大气压-300）Pa。在减压室36的内部设置有用于阻挡来自流延鼓31的风的空气屏蔽板70和71，用于空气通道形成在屏蔽板70和71的上半部分中。通过将铸造凸缘的接触位置A和屏蔽板70之间的距离L（mm）设定在20°的范围内来阻止相关联的风 mm至100 mm。防止相关的风撞击铸造珠38.流延膜39从流延鼓31上剥离，并干燥以制成聚合物膜。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JPH06192779A ALUMINUM ALLOY FOR PLANOGRAPHIC PRINTING PLATE AND ITS PRODUCTION 失效
公开(公告)号：JPH06192779A
公开(公告)日：1994-07-12
申请号：JP11291192
申请日：1992-05-01
申请人： SUMITOMO LIGHT METAL IND , FUJI PHOTO FILM CO LTD
发明人： YAMAUCHI SHIGENORI , SUZUKI YUJI , TSUCHIDA MAKOTO , KIDO HIRAKI , HOTTA YOSHINORI , SAKAKI HIROKAZU
IPC分类号： B41N1/08 , C22C21/00 , C22F1/00 , C22F1/04
摘要： PURPOSE:To provide an aluminum alloy material for a planographic printing plate free from the generation of an ink stain and to provide its producing method. CONSTITUTION:This is an alloy having a compsn. constituted of, by weight, 0.1 to 1.0% Fe, 0.03 to 0.30% Si, 0.002 to =(Si%)...(1) and T>=-300A+460...(2); where T: process annealing temp. ( deg.C) and A=10{2(Mg%)+(Mn%)}(Si%).

8. 发明专利

JPH05185443A METHOD FOR MAKING FILM FROM SOLUTION 失效
公开(公告)号：JPH05185443A
公开(公告)日：1993-07-27
申请号：JP1939092
申请日：1992-01-09
申请人： FUJI PHOTO FILM CO LTD
发明人： SUZUKI YUJI , KATAI KOSUKE , YAMAZAKI TAKESHI
IPC分类号： B29C41/24 , B29K1/00 , B29L7/00 , C08J5/18 , C08L1/00 , G03C1/795
摘要： PURPOSE:To suppress growing of foreign substances on a conveying roller by lowering the surface temp. of the conveying roller by cooling from the end part to a specified region at a specified value or lower when a cellulose triacetate film used for a photographic photosensitive material, etc., is cast on a substrate and the film is prepd. CONSTITUTION:A cellulose triacetate film 3 cast onto a rotating drum 5 from a casting die 1 is dried and cooled for solidification on the drum 5, which is cooled below 20 deg.C. The film is peeled off from the drum 5 as a film 4, which is conveyed by means of conveying rollers 7 (71, 72,...) and is dried from both sides. In such a method for making a film as this, when the wt. ratio of a solvent in the film peeled off from the drum 5 is 40wt.% or more, the surface temp. in a region being at least 30mm inside from the end part of the film on the conveying roller 7 is cooled at 20 deg.C or lower. This cooling is performed by blowing a cooling wind from a cooling wind blowing nozzle 8.

9. 发明专利

JPS61158414A MANUFACTURE OF CELLULOSE TRIACETATE FILM 失效
公开(公告)号：JPS61158414A
公开(公告)日：1986-07-18
申请号：JP28070484
申请日：1984-12-30
申请人： FUJI PHOTO FILM CO LTD
发明人： SUZUKI YUJI , SAITO HIROKI , ONO KAZUHIRO
IPC分类号： C08J5/18 , B29C41/12 , B29C41/28 , B29K1/00 , B29L7/00 , G03C1/795
摘要： PURPOSE:To enable shortening of a peeling period of time, by a method wherein the temperatures of a dope, film and support during a period of time from casting of the dope(A) and dope(B) on the support till peeling off of them are set in a specific range. CONSTITUTION:The temperature of a dope of a casting part and that of a support of the first half part of transfer and said part of a cast film on the support is made higher than the gelatinization temperature of the dope, whose maximum temperature is made lower by 30 deg.C than the foam forming temperature and the temperature of the film and support on a peeling part of the film is made lower than 20 deg.C. The dope(A) and dope(B) are cast respectively from a first casting port 1 and second casting port 2 to a band which is at positions of drums 4, 5, hot air 7 is blown against the upper part of the band 6 in the vicinity of a casting part of the dope(A) and broken away from the band when the same arrives at a position of about three quarters of a length of the band 6. Cool air 8 is blown against the surface of the band 6 in the vicinity of the lower part of the drum 4 and broken away from the band 6 when the same arrives at a position of about a quater of the length of the band 6. The drum 4 is cooled by cold water 9, the drum 5 is heated by hot water 10 and the film cast is peeled off from a peeling part 11.

10. 发明专利

JPS61158413A MANUFACTURE OF CELLULOSE TRIACETATE FILM 失效
公开(公告)号：JPS61158413A
公开(公告)日：1986-07-18
申请号：JP28070384
申请日：1984-12-30
申请人： FUJI PHOTO FILM CO LTD
发明人： ONO KAZUHIRO , SAITO HIROKI , ICHINO SHUICHI , SUZUKI YUJI
IPC分类号： C08J5/18 , B29C41/12 , B29C41/28 , B29K1/00 , B29L7/00 , G03C1/795
摘要： PURPOSE:To reduce a solidification rate and peeling rate from a supporting member of a film, by making a dope(A) co-cast on both sides of a dope(B). CONSTITUTION:A dope(B) 1d and dope(A) 6d are fed respectively from liquid preparation tanks 1, 6 to a slit die 3 in a liquid state by passing through a confluent pipe 8 and the confluent pipe 8 supplies the dope(A) 6d to a chamber 81 provided on the external circumference of the pipe. The dope(A) 6d met with the dope(B) 1d forms layers concentrically by surrounding the dope(B) 1d, extruded through the die 3 and cast into a band 10. A film cast is peeled off from a peeling part 16. A thickness of the dope(A) layer in an undried state is made into 5-15mum and the temperature of the dope of a casting part and that of a supporting member of the first half part of transfer and said part of a cast film on the supporting member is made higher than the gelatinization temperature of the dope, whose maximum temperature is made lower by 30 deg.C than the foam forming temperature. The temperature of the film and supporting member on the peeling part of the film is made lower than 20 deg.C.

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