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Which of the following polymer is used as a printing surface?

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+1 vote
in Food Packaging Technology by (63.0k points)
Which of the following polymer is used as a printing surface?

(a) Polypropylene

(b) Nylon

(c) Aluminum Foil

(d) Polyester

The question was asked in semester exam.

Asked question is from Food Packaging Materials topic in division Food Packaging Materials, Packaging Standards and Regulation Laws of Food Packaging Technology

1 Answer

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Best answer
Right answer is (d) Polyester

Easy explanation: Polyester is the printable surface as well as the outermost layer in a retort pouch. It also provides strength.  Aluminum foil is the barrier layer of a retort. It protects from light, gases and odors.

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