AD Star Valve Bag (Polypropylene Woven Bag):

These bags are made of a single layer of woven polypropylene (pp), the same material with bulk bags (FIBC’s) and it is very strong. 

Normally There are 2 styles,  tubular and back seam. Both function essentially the same but the back seam version will be a little 

stiffer. Most of the Ad Star bags can be printed with several colors. Ad Star bags can be made with a variety of valve types and fabric 

colors as well.  

Paper Valve Bag 

These bags are made of kraft paper. There are 2 basic types of paper used,  2 ply or 3 ply regular kraft and 2 ply paper with one PE Film. 

Details as the bag loading and customers' requirements. Both generally work well in most applications and can be made with a variety 

of valve types. Paper bags come in either brown or bleached paper and can then be printed as well.