Question

Resistance of paper against water is called wet-strength.

(a) True

(b) False

The question was asked in an interview for internship.

Enquiry is from Paper Making in portion Paper and Paper Based Packaging Materials of Food Packaging Technology

Answer 1

The correct option is (a) True

For explanation: The given statement is true. The required wet strength (up to 50% of the dry paper strength can be retained) is obtained with the aid of wet-strength additives that are capable of covalently bonding in order to preserve paper strength in the presence of water. Linerboard, carrier board, bleached carton and liquid paperboard are some of the principal grades that require an amount of wet strength to be functional.