US3805402A - Process for preparing a plastic film - Google Patents

Process for preparing a plastic film Download PDF

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Publication number
US3805402A
US3805402A US00175248A US17524871A US3805402A US 3805402 A US3805402 A US 3805402A US 00175248 A US00175248 A US 00175248A US 17524871 A US17524871 A US 17524871A US 3805402 A US3805402 A US 3805402A
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US
United States
Prior art keywords
film
humidity
temperature
plastic film
curl
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 - Lifetime
Application number
US00175248A
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English (en)
Inventor
M Aono
G Uehara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Application granted granted Critical
Publication of US3805402A publication Critical patent/US3805402A/en
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/81—Photosensitive materials characterised by the base or auxiliary layers characterised by anticoiling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets

Definitions

  • some processes have been hitherto employed such as a process to balance the curl of the emulsion layer with a curl of a gelatin layer applied on the other side of the film; a process to apply some layers of certain substances other than gelatin in order to achieve the curling balance corresponding to the swelling or shrinking of the emulsion layer during the developing step; and a process to apply a layer which balances the curl corresponding to the swelling or shrinking of the emulsion layer during development and may be removed during that step.
  • FIG. 3 is a graph which shows the relation of the curling value, humidity and times in Example 1.
  • FIG. 3 shows that a higher temperature, a higher humidity and a longer blowing time yield a greater effect.
  • EXAMPLE 3 Cellulose triacetate was dissolved in a mixture of so]- vents consisting chiefly of methylene chloride. A plasticizer was added to the resulting solution to obtain a dope. The dope, having a concentration of 20.0 wt. was flowed onto the surface of a support. The prepared film was stripped from the surface of the support when 25 wt.% of the solvent remained in the film, and was introduced into a drying chamber.
  • EXAMPLE 4 Cellulose triacetatefilm. having a thickness of 140 microns was processed under two conditions,"( 1) 70C and 0.2 Kg steam/Kg dry air, and (2) 150C and 2 Kg steam/Kg dry air, with the time being varied, in the same way shown in Example 1.
  • the curling values of the processed films were measured at 23C, and 25,55 and 85% RH (these values being denoted by K K K respectively).
  • plastic film is a cellulose ester, polyvinyl chloride, polystyrene or polyethylene terephthalate film.
  • cellulose ester is cellulose nitrate, cellulose acetate, cellulose propionate, cellulose butyrate or a mixture theseof.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Moulding By Coating Moulds (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
US00175248A 1970-08-26 1971-08-26 Process for preparing a plastic film Expired - Lifetime US3805402A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7473970A JPS5426582B1 (nl) 1970-08-26 1970-08-26

Publications (1)

Publication Number Publication Date
US3805402A true US3805402A (en) 1974-04-23

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ID=13555893

Family Applications (1)

Application Number Title Priority Date Filing Date
US00175248A Expired - Lifetime US3805402A (en) 1970-08-26 1971-08-26 Process for preparing a plastic film

Country Status (4)

Country Link
US (1) US3805402A (nl)
JP (1) JPS5426582B1 (nl)
BE (1) BE771763A (nl)
FR (1) FR2106071A5 (nl)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4141735A (en) * 1975-03-31 1979-02-27 Eastman Kodak Company Process for reducing core-set curling tendency and core-set curl of polymeric film elements
US5708904A (en) * 1996-06-14 1998-01-13 Eastman Kodak Company Photographic emulsion surface reforming method
US6113288A (en) * 1996-06-14 2000-09-05 Eastman Kodak Company Water deposition apparatus and method
US20030096093A1 (en) * 2001-11-16 2003-05-22 Fuji Photo Film Co., Ltd. Cellulose acylate film and polarizing plate using the same
US20080138541A1 (en) * 2005-01-31 2008-06-12 Fujifilm Corporation Optical Film, Method for Producing Optical Film, Optically-Compensatory Film, Polarizing Plate and Liquid-Crystal Display Device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1008233A3 (nl) * 1994-01-26 1996-02-20 Agfa Gevaert Nv Methode om in homo- of copolymere polyethyleentereftalaat filmen dwarskrul in te bouwen.
CN106575008B (zh) * 2014-08-04 2019-12-24 住友化学株式会社 偏振膜的制造方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2044136A (en) * 1931-11-07 1936-06-16 Celanese Corp Treatment and manufacture of artificial yarns, threads, filaments, and the like
US3470625A (en) * 1967-02-07 1969-10-07 Fuji Photo Film Co Ltd Humidity control of photographic printing paper
US3632726A (en) * 1969-04-14 1972-01-04 Du Pont Apparatus for and method of making dimensionally stable flat plastic film and the film made thereby
US3665070A (en) * 1969-05-26 1972-05-23 Teijin Ltd Method of air-conditioning undrawn yarn package in drawing machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2044136A (en) * 1931-11-07 1936-06-16 Celanese Corp Treatment and manufacture of artificial yarns, threads, filaments, and the like
US3470625A (en) * 1967-02-07 1969-10-07 Fuji Photo Film Co Ltd Humidity control of photographic printing paper
US3632726A (en) * 1969-04-14 1972-01-04 Du Pont Apparatus for and method of making dimensionally stable flat plastic film and the film made thereby
US3665070A (en) * 1969-05-26 1972-05-23 Teijin Ltd Method of air-conditioning undrawn yarn package in drawing machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4141735A (en) * 1975-03-31 1979-02-27 Eastman Kodak Company Process for reducing core-set curling tendency and core-set curl of polymeric film elements
US5708904A (en) * 1996-06-14 1998-01-13 Eastman Kodak Company Photographic emulsion surface reforming method
US6113288A (en) * 1996-06-14 2000-09-05 Eastman Kodak Company Water deposition apparatus and method
US20030096093A1 (en) * 2001-11-16 2003-05-22 Fuji Photo Film Co., Ltd. Cellulose acylate film and polarizing plate using the same
US20050040556A1 (en) * 2001-11-16 2005-02-24 Fuji Photo Film Co., Ltd. Cellulose acylate film and polarizing plate using the same
US20080138541A1 (en) * 2005-01-31 2008-06-12 Fujifilm Corporation Optical Film, Method for Producing Optical Film, Optically-Compensatory Film, Polarizing Plate and Liquid-Crystal Display Device
US8377344B2 (en) * 2005-01-31 2013-02-19 Fujifilm Corporation Optical film, method for producing optical film, optically-compensatory film, polarizing plate and liquid-crystal display device

Also Published As

Publication number Publication date
BE771763A (fr) 1971-12-31
JPS5426582B1 (nl) 1979-09-05
DE2142857A1 (de) 1972-03-16
DE2142857B2 (de) 1976-11-04
FR2106071A5 (nl) 1972-04-28

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