The standard followed for measuring smoothness of paper by air leak principle is -----------.

------------- is the standard glass colorants for green glasses used in packaging applications. 

--------------- is a measure of the fightners to which the capping machine turns the closure.

--------- are made by grinding the dry pigment into the varnish and dispersing with other additives required to modify flow, tack and flim properties

The reflection densities of magenta, cyan, yellow and their two - colour over prints are used in the following formula to determine trapping percentage 

--------- layers of flutes are in Double Wall corrugated board.