Flerlagsstof af ikke-vævet materiale og udlagt materiale.

摘要

There are described a dimensionally stable laminate (layered product, sheet) whose surfaces are formed by spunbonded webs (non-woven, spun-bondeds, spunbonds) and which consists of at least two layers of spun-bonded and at least one laid layer (scrim, network) of reinforcing yarn, the laid layer or layers each being disposed between two layers of spunbonded and having a thread density from 0.5 to 3 threads/cm, the spunbonded and laid layers having been joined together by needling at about 20 - 70 stitches/cm<2>; a process for manufacturing this laminate; and its use for manufacturing roofing felts and underfelts (sarking, underslating).