Question

Wide mouth press and blow process for glass container manufacture does not include which of the following steps?

(a) Blank press

(b) Neck formation

(c) Final shape blown

(d) Plunging

This question was posed to me in semester exam.

The origin of the question is Manufacture of Glass topic in section Glass Packaging Materials of Food Packaging Technology

Answer 1

Correct option is (b) Neck formation

Explanation: Wide mouth “press and blow” process for glass container manufacture takes place in the following steps-

i. Gob dropped into blank mold

ii. Plunger presses blank shape

iii. Blank pressed Blank transferred to blow mold

iv. Final shape blown

v. Finished jar– give bullet points.