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Which of the following processes is done to remove surface contaminants?

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in Food Packaging Technology by (63.0k points)
Which of the following processes is done to remove surface contaminants?

(a) Priming

(b) Chemical Treatment

(c) Corona Treatment

(d) Flame Treatment

The question was posed to me in examination.

This intriguing question comes from Coating and Laminating in Thermoplastics in chapter Thermoplastic Polymers Properties & Processing of Food Packaging Technology

1 Answer

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Best answer
Right choice is (b) Chemical Treatment

To elaborate: Chemical treatment is an essential step in surface treatment to remove surface contaminants. Rest of the treatments- priming, corona treatment and flame treatment are mainly done for increasing surface energy. Chemical treatment has mainly three steps- cleaning, etching and rinsing.

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