Kraft paper is a strong, thick-textured paper material made from sulphated coniferous wood pulp. It is usually brown or yellow in colour as it is not bleached. YUANRUI, China’s leading packaging bag manufacturer’s kraft stand up pouch is widely used in various industries precisely because of its excellent physical properties, such as high tensile strength, high toughness and abrasion ... https://www.yrpackage.com/category/kraft-paper-bag/