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__________ is the measure of ease with which one layer slides over another layer of plastic.

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in Food Packaging Technology by (63.0k points)
__________ is the measure of ease with which one layer slides over another layer of plastic.

(a) Flex Resistance

(b) Blocking

(c) Coefficient of friction

(d) Crease Resistance

This question was addressed to me during an internship interview.

The doubt is from Optical, Mechanical Properties of Thermoplastic Polymers topic in chapter Thermoplastic Polymers Properties & Processing of Food Packaging Technology

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Best answer
Right choice is (c) Coefficient of friction

The best explanation: Coefficient of friction is the measure of ease with which one layer slides over another layer of plastic. Blocking is the ability of two films to be in such a contact, so as to eliminate any air present in between the layers. Crease or flex resistance is the resistance of a plastic against crease of flexing by repeatedly folding the film forward and backward at a given rate.

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