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The parison is an important factor in determining the final shape and structure of glass jar.

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+1 vote
in Food Packaging Technology by (63.0k points)
The parison is an important factor in determining the final shape and structure of glass jar.

(a) True

(b) False

This question was addressed to me in an internship interview.

My doubt stems from Manufacture of Glass in section Glass Packaging Materials of Food Packaging Technology

1 Answer

+2 votes
by (194k points)
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Best answer
The correct choice is (a) True

For explanation: The given statement is true. The body blank or parison is formed by pressing the gob of molten glass against the mold walls with a large plunger. The cavity is filled with molten glass, which is then pushed down into the neck ring to form the finish. A mechanical plunger in introduced into the glass which gives it a shape. Baffle or counterblow air is not used during this operation.

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