Thermally fusible sheet body

A thermally fusible textile fabric usable as a fusible interlining material in the textile industry, comprising:

• a backing layer comprising a textile material on top of which has been applied an adhesive compound structure comprising a polyurethane coating containing a polyurethane mixture comprising at least one polyester urethane, at least one polyether urethane, and at least one polycarbonate urethane,
• wherein the polyurethane mixture has been prepared by physically mixing at least one polyester urethane, at least one polyether urethane, and at least one polycarbonate urethane, wherein each of the at least one polyester urethane, the at least one polyether urethane, and the at least one polycarbonate urethane are prepared separately from one another prior to being physically mixed,
• wherein the polyester urethane is prepared by reacting at least one bifunctional polyisocyanate, having an isocyanate content of 5 to 65 wt. %, with:
• at least one polyester polyol, and
• optionally at least one chain extender,
• wherein the polyether urethane is prepared by reacting at least one bifunctional polyisocyanate, having an isocyanate content of 5 to 65 wt. %, with:
• at least one polyether polyol, and
• optionally at least one chain extender,
• wherein the polycarbonate urethane is prepared by reacting at least one bifunctional polyisocyanate, having an isocyanate content of 5 to 65 wt. %, with:
• at least one polycarbonate polyol, and
• optionally at least one chain extender,
• wherein the at least one chain extender, if present, is selected from the group consisting of divalent aliphatic C1-C8 alcohols, and
• wherein the polyurethane mixture has been at least partially crosslinked with a crosslinker comprising at least one isocyanate blocked with a blocking agent at at least one isocyanate group.