La technologie H1 Une nouvelle approche de l'aiguilletage

摘要

La pénétration oblique des aiguilles, grâce à une zone d'aiguilletage de forme asymétriquement incurvée, permet d'obtenir des voiles isotropiques et plus résistants, dans lesquels les fibres sont mieux enchevêtrées.%The principle of H1 technology, the idea that superior web properties can be obtained by oblique angled needle penetration achieved by means of an asymmetrically curved needling zone and straight needle movement, is explained in detail together with some of the advantages that derive from this new technology, e.g. more isotropic web properties, better fibre entanglement and higher strength values. Three different test results, for automotive carpets, geotextiles and synthetic leather have been discussed, the latter together with a configuration of an entire production line. Twenty machines which are already in operation throughout this field of industry are a clear evidence of the acceptance which the H1 technology has already met.