Fiber sheet with improved properties

Producing a water-based foam comprising at least 3% by weight of non-linear synthetic binder fibers， wherein the non-linear synthetic binder fibers have an average length of greater than 2 mm; Forming together a wet sheet layer and a cellulosic fiber layer from an aqueous foam， wherein the cellulosic fiber layer comprises at least 60% by weight of cellulosic fibers; And drying the combined layers to obtain a foam-formed multilayer substrate. The multilayer substrate comprises: a first layer comprising at least 60% by weight of non-straight synthetic binder fibers having an average length of greater than 2 mm; And a second layer comprising at least 60% by weight of cellulosic fibers， wherein the first layer is in face-to-face relationship with the second layer， and the multilayer substrate has a wet/dry tensile ratio of at least 60%. A method for producing a foam-formed multilayered substrate that includes producing an aqueous-based foam including at least 3% by weight non-straight synthetic binder fibers， wherein the non-straight synthetic binder fibers have an average length greater than 2 mm; forming together a wet sheet layer from the aqueous-based foam and a cellulosic fiber layer， wherein the cellulosic fiber layer includes at least 60 percent by weight cellulosic fibers; and drying the combined layers to obtain the foam-formed multilayer substrate. A multilayered substrate includes a first layer including at least 60 percent by weight non-straight synthetic binder fibers having an average length greater than 2 mm; and a second layer including at least 60 percent by weight cellulosic fiber， wherein the first layer is in a facing relationship with the second layer， and wherein the multilayered substrate has a wet/dry tensile ratio of at least 60%. A method for producing a foam-formed multilayered substrate that includes producing an aqueous-based foam including at least 3% by weight non-straight synthetic binder fibers， wherein the non-straight synthetic binder fibers have an average length greater than 2 mm; forming together a wet sheet layer from the aqueous-based foam and a cellulosic fiber layer， wherein the cellulosic fiber layer includes at least 60 percent by weight cellulosic fibers; and drying the combined layers to obtain the foam-formed multilayer substrate. A multilayered substrate includes a first layer including at least 60 percent by weight non-straight synthetic binder fibers having an average length greater than 2 mm; and a second layer including at least 60 percent by weight cellulosic fiber， wherein the first layer is in a facing relationship with the second layer， and wherein the multilayered substrate has a wet/dry tensile ratio of at least 60%.