... Professional production 4.Customized size Paper Bag 1. ContentsMaterial: White paperboard ,woodfree paper,kraft paper,artpaper etc.Printing Color: ... Technology Process Offset printing, Silk printing, UV Coating, Water base varnish, Hot Foil stamping, embossing,imprint,oil varnishing ... spot, stamping,etc. 3. Types paper bag ,kraft paper bag ,paper gift bag ,paper shopping bag,series grade quality bag. ...