I Want To Now The Techniques Methods How To Study Inks On Printed Products ( Plastics Flim , Sheets , Pepar ). And How To Make Formula For Printed Products ( Inks , Flims , Sheets )

I Want To Now The Techniques Methods How To Study Inks On Printed Products ( Plastics Flim , Sheets , Pepar ). And How To Make Formula For Printed Products ( Inks , Flims , Sheets )
Dear Sir,

I want to new the technical way for calculate the inks on the printed sample for flexible film and how to do study inks before printing.