Menetelmä vesiliukoisen kalvon valmistamiseksi ja kalvon käytöt

摘要

The present invention concerns production of water soluble xylan films in a large scale, where a mixture of xylan, glycerin and water is prepared by dissolving xylan in water, glycerin is added, and the mixture is cast on a moving web, the cast xylan film is dried, and the dried xylan film is separated from the moving web. Especially the invention concerns production of modified xylan films that are heat sealable for producing packages. The invention also concerns use of hydroxyalkylated xylan films for producing heat sealable packages.