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________ is used to obtain bioriented products.

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+1 vote
in Food Packaging Technology by (63.0k points)
________ is used to obtain bioriented products.

(a) Extrusion blow molding

(b) Stretch blow moulding

(c) Injection blow molding

(d) Thermoforming

The question was asked in final exam.

My doubt stems from Blow Molding in Thermoplastics in section Thermoplastic Polymers Properties & Processing of Food Packaging Technology

1 Answer

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Correct option is (b) Stretch blow moulding

The explanation: Stretch blow moulding is used to obtain bioriented products. In injection stretch blow moulding, the process begins with an injection moulded parison. The parison is pre-heated, stretched in the axial direction and blown into its final shape by a stretch blow moulding machine, which results in changing its orientation.

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