01 Nov 2021 --- DS Smith and Aquapak are highlighting a new study demonstrating Hydropol coatings increase paper recycling rates and fiber yield without compromising functionality. The Paper International Technology Association (PITA) study suggests bio-digestible barrier coatings provide a viable new packaging alternative to conventional plastic coatings. Hydropol is a fully soluble, bio-digestible barrier polymer that can be adhesive or extrusion coated onto paper. The polymer can bring many benefits to fiber-based packaging, including oil and grease resistance together with a high gas barrier.