Title:
【発明の名称】酢酸セルロースフィルムの製造装置
Document Type and Number:
Japanese Patent JPH05501089
Kind Code:
A
Abstract:
Apparatus for casting cellulose acetate film from a hot solution is described. The apparatus includes a casting wheel (12), means (13, 14) for passing heated liquid through the wheel to heat the wheel, means (15) for extruding a band of solution onto the wheel, a take-off roller (16) for taking the band, in the form of a film, off the wheel and further rollers (18, 20, 22) for leading the film (26) to a drier (24) after which, when the solvent has been largely removed from the film, the film is wound up into a roll. The take-off roller (16) and the further rollers (18, 20, 22) are concave whereby a defect in the form of surface imperfections is avoided. The imperfections take the form of short sinuous lines oriented generally parallel to the length of the film.
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Inventors:
Tagria Latera, Mar A
Stuart, Arthur M
Stuart, Arthur M
Application Number:
JP50789791A
Publication Date:
March 04, 1993
Filing Date:
April 16, 1991
Export Citation:
Assignee:
Eastman Kodak Company
International Classes:
B29C37/00; B29C41/26; B29C55/08; B29D7/01; B29C41/12; B29K1/00; B29L7/00; (IPC1-7): B29C41/26; B29K1/00; B29L7/00
Attorney, Agent or Firm:
Kyozo Yuasa (6 people outside)