Wet Strength Resins in Hygienic Paper Production, 1999 Papermakers Conference Proceedings
Udo Hamm
Many types of paper can only fulfil their purpose if they have adequate wet strength. Such papers include, for example, filter papers, hygienic papers, papers for bags, label papers, wallpaper base papers, laminate base papers, packaging papers for moist goods and all papers which, in the course of further processing, are subjected to strain in the wet state. The required wet strength is obtained with the aid of wet-strength agents. These are chemical additives which are capable of crosslinking during the paper drying process by forming bonds with one another and with the cellulose fibres.