IPC Definitions - January 01, 2012
D04H 1/4391 - Definition
This group covers:
Non-woven fabrics characterized by the shape of used fibres, for example, modified cross-section fibres or crimped fibres on which specific crimps are given, and which are also included in the scope of the upper group, namely, formed wholly or mainly of staple fibres or like relatively short fibres and formed from fleeces or layers composed of fibres without existing or potential cohesive properties insofar as this use has no preponderant influence on the consolidation of the fleece.
Attention is drawn to the following places, which may be of interest for search:
Characterised by the shape of yarns or filaments | D04H 3/018 |