Varmforseglbart filtermateriale med biologisk nedbrytbare polymerer

摘要

The invention relates to a filter material comprising at least two layers, where at least one layer contains natural fibres and at least one layer contains biodegradable thermoplastic fibres. Said thermoplastic fibres are chosen from among the group of aliphatic or partly aromatic polyester amides, aliphatic or partly aromatic polyesters, aliphatic or partly aromatic polyester urethanes, and aliphatic or aliphatic-aromatic polyester carbonates.