Question

_________ is a translucent, machine-finished paper which has been hydrated to give oil and grease resistance.

(a) Kraft paper

(b) Bleach paper

(c) Waxed paper

(d) Greaseproof paper

This question was addressed to me in an interview for internship.

My question is from Types of Paper topic in division Paper and Paper Based Packaging Materials of Food Packaging Technology

Answer 1

Correct answer is (d) Greaseproof paper

The best I can explain: Greaseproof paper is a translucent, machine-finished paper which has been hydrated to give oil and grease resistance. Prolonged beating or mechanical refining is used to fibrillate and break the cellulose fibers which absorb so much water that they become superficially gelatinized and sticky. This physical phenomenon is called hydration and results in consolidation of the web in the paper machine with many of the interstitial spaces filled in.