Paper-Plastic composite bag Paper-poly Kraft, also known as paper laminated or paper woven, are combination bags constructed with a paper shell laminated to a woven polypropylene inner-lining. The lining safeguards the contents from moisture, making it an ideal bag for holding grains, seeds, pet foods, flour, rice, sugar, fertilizers, frozen products, some chemicals and various building materials. Though the bags have a similar appearance and texture to standard multi-wall paper bags, they offer extra strength, durability, protection from punctures or tears and higher moisture resistance.
The exterior paper comes in natural Kraft or bleached white. The inner layer of woven polypropylene is laminated to the paper by using a PE coating, making them one of the most durable bags on the market.
Some of the uses of PP Woven Bags include Grains: