POLYESTER FILM FOR GAS BARRIER WORKING, AND GAS BARRIER LAMINATED POLYESTER FILM CONSISTING OF THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a polyester film for a gas barrier working which has an advanced gas barrier property when laminating a gas barrier layer and has the high transparency and easy workability.;SOLUTION: The polyester film for a gas barrier working comprises a film layer prepared on at least one side of a base film consisting of a polyester, wherein the film layer includes: 50-80 wt.% of (A) a copolyester resin; 10-30 wt.% of (B) polyvinyl alcohol; and 3-25 wt.% of (C) particulates based on the weight of the film layer, and the total light transmittance of the polyester film is at least 85% and the haze is not more than 1.5%.;COPYRIGHT: (C)2007,JPO&INPIT