Material: Laminated Material
Printing Type: Gravure Printing
Surface Finish: Film Lamination
Feature: Moisture Proof
Industrial Use: Food
Quad seal bags have two side gussets (like a grocery bag), but their differentiating feature──from which they derive their name──is that the gussets and the two panels are joined by four vertical seals.
When the packaging bags are designed to have a rectangular bottom (again, like a grocery bag), they can stand erect. For large packaging bags holding upwards of 10 lbs., the bottom is closed via a fold-under flap and the bagged product is displayed lying face-up, pillow-fashion. Regardless of their bottoms, quad seal bags permit graphics to be printed on the gussets as well as the front and back panels, thus the potential for impressive visual impact. As for the back panel, there is no middle seal to interrupt the graphics.