Our kraft paper bag is China new invention warp and weft kraft paper bag. We are the only factory in China which can produce this kind kraft paper bag.The raw material of this warp and weft paper bag is 100%original wood pulp and cotton thread. When producing paper, we put the non-wood fibre pulp combined with the cotton thread. Cotton thread in the type of warp and weft here make the function of enhancing the paper strength. So we usually call this kind kraft paper bag: warp and weft kraft paper bag. Standard export carton packing