Aqueous polyurethane compositions containing crosslinking agents and their use for heat-active one-coat reverse coating

摘要: This invention relates to compositions of aqueous polyurethane dispersions containing polyurethanes having lateral OH-groups, optionally in admixture with PU-dispersions without any which contain a combination formaldehyde resins and blocked polyisocyanates as crosslinking agent and, handle-improving agents, silicones standard additives. The present also the use these for production light coatings by heat-activated, one-coat reverse coating process, PU-composition is applied temporary support dried, after (textile) substrate laminated onto dry film at elevated temperature pressure laminate formed subsequently crosslinked relatively high temperature. Mixed plus makes it possible obtain characterized outstanding adhesion wet strength values.