A laminate has a core layer and a skin layer on either side of the core
layer, wherein the skin layer is formed of a copolymer having a glass
transition point of 85.degree. C. or more and 115.degree. C. or below and
consisting of 2,6-naphthalene dicarboxylic acid or its lower alkyl ester,
terephthalic acid or its lower alkyl ester and ethylene glycol or a
polymer alloy having a glass transition point of 85.degree. C. or more
and 115.degree. C. or below and consisting of polyethylene terephthalate
and polyethylene-2,6-naphthalate. Thus, it can be used suitably as a
packaging container for food and drink, such as jelly containers, which
has flavor resistance and aroma retention sufficient not to be limited by
types of flavor used for jelly or the like, excels in sealing properties
with a lid body, can be hermetically sealed with an easy-peel transparent
lid body, and is also superior in gas barrier properties, impact
resistance, heat resistance, cost efficiency and transparency.