Three- or four-layer kraft paper bags can be coated with a PP film on top for waterproofing. Imported Russian yellow kraft paper or Canadian white kraft paper can be used. PE inner film can be added. Multi-layer kraft paper bags are made from pure wood pulp kraft paper and are more environmentally friendly. PE plastic inner film can be added for even better moisture-proofing.

Three- or four-layer kraft paper bags can be coated with a PP film on top for waterproofing. Imported Russian yellow kraft paper or Canadian white kraft paper can be used. PE inner film can be added. Multi-layer kraft paper bags are made from pure wood pulp kraft paper and are more environmentally friendly. PE plastic inner film can be added for even better moisture-proofing.