High-durability non-woven fabric with melange appearance and method for manufacture
OwnerSilvia Marini, Omar Teofrastiinventors
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Abstract
A non-woven fabric with melange-type visual appearance and endowed with high-durability comprising a fiber part and a matrix binder characterized by the binder matrix being a polyurethane characterized by the presence of soft segments and rigid segments, the former constituted from mixtures of polycarbonate-polyols and polyester-polyols, and the latter, from urethane groups deriving from the reaction of isocyanates with ureic polyols, and groups deriving from the reaction between the free isocyanate groups and water, and the fiber part comprises a fiber of melange appearance that is a mixture of two or more fibers with different dyeability characteristics.
Claims16
A non-woven fabric with a melange appearance and high-durability comprising:
- a fiber part including at least one of a melange appearance fiber and a mixture of at least two fibers with different dyeability characteristics;
- a matrix binder comprising a polyurethane including soft segments and rigid segments, the soft segments consisting of at least one polycarbonate polyol selected from the group consisting of polypentamethylenecarbonatoglycol, polyhexamethylenecarbonatoglycol and polyheptamethylenecarbonatoglycol and at least one polyester polyol selected from the group consisting of polyhexamethyleneadipateglycol, polyneopentyladipateglycol, and polycaprolactonediol, and the rigid segments consisting of urethane groups derived from the reaction of isocyanate with polyols, and ureic groups derived from the reaction between isocyanate groups and water.
Dependencies are inferred from the claim text.