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In the process of surface treatment before lamination or coating, the surface energy is ______

a) Constant
b) Decreased 10 fold
c) Increased
d) Decreased

Answer: c
Explanation: In the process of surface treatment before lamination or coating, the surface energy is increased. This is done to improve wet-out and adhesion of coatings, inks and adhesives used. Improved wet-out maximises the contact area and attractive forces between the films.

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