Title: Biax stretched laminated polyester film used in photographic material and its production method and silver halide photographic material
Application Number: 200410045917 Application Date: 2004.05.24
Publication Number: 1573535 Publication Date: 2005.02.02
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G03C1/76,G03C1/795,G03C1/81
Applicant(s) Name: Konica Minolta Photo Imaging I. Address:
Inventor(s) Name: Kawakami Akira
Attorney & Agent: zhang bengyuan zhao renlin
Abstract:
     Provided is a polyester laminated base having good transparency and manufacturability and a silver halide photographic sensitive material using the same. In the method for manufacturing a biaxially stretched laminated polyester film for a photographic sensitive material, a biaxially stretched laminated polyester film having a thickness of 100-130 [mu]m, including a surface layer comprising a polyester containing, as a main component, a poly-1,4-cyclohexylenedimethylene terephthalate and a core layer comprising a polyester containing, as a main component, a polyethylene-2,6-naphthalate, and containing 0.01-0.4 mass% of inert fine particles having an average particle diameter of 0.05-1.2 [mu]m is annealed in a rolled state at (Tg of the polyethylene-2,6-naphthalate)-30[deg.]C to the Tg for 0.1-1,000 h.
Time: 6
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