PROCEDE POUR LA REALISATION DE NAPPES NON TISSEES DONT LA COHESION EST OBTENUE PAR L'ACTION DE JETS DE FLUIDE
    71.
    发明公开

    公开(公告)号:EP1226297A1

    公开(公告)日:2002-07-31

    申请号:EP00964353.7

    申请日:2000-09-22

    申请人: Rieter Perfojet

    IPC分类号: D04H1/46

    摘要: The invention concerns a method for producing a nonwoven web formed at least partly with hydrophilic elementary fibres which consist in: producing by carding a textile layer (10) which is then compressed and moistened; subjecting it to a bonding treatment using water jets acting at least against one of its surfaces; and transferring said bonded layer to a unit (32, 33) to be dewatered and dried. Said method is characterised in that, after the bonding treatment (20) with water jets and before drying and delivery, the pre-bonded and moistened layer is transferred to a supplementary unit (28) to be treated by the action of one or several series of water jets, said unit comprising a mobile suction surface in the form of a drum covered with an open-work structure (30) consisting of a wire-mesh fabric, comprising successive raised and recessed zones.

    PROCEDE POUR LA REALISATION D'UN MATERIAU NON-TISSU COMPLEXE ET MATERIAU AINSI OBTENU
    72.
    发明公开
    PROCEDE POUR LA REALISATION D'UN MATERIAU NON-TISSU COMPLEXE ET MATERIAU AINSI OBTENU 有权
    用于配合物的制备和生产的非织造布网

    公开(公告)号:EP1117860A1

    公开(公告)日:2001-07-25

    申请号:EP99928043.1

    申请日:1999-06-15

    申请人: Rieter Perfojet

    摘要: The invention concerns a method which consists in continuously: producing by carding (1) a web (10) from chemical fibres; subjecting the resulting web (10) to a hydro-entanglement using water jets, treatment which consists in: (a) consolidating the web (10) by the action of a first series of water jets (3), the web (10) being supported by a drum (4) comprising micro-perforations; (b) subjecting the consolidated web (10) to structuring, by the action of one or several series of water jets (12); depositing on the surface of the resulting structured lap (10a) natural fibres (14) by pneumatic layering (6); subjecting the resulting complex (20) to the action of another series of water jets (7) acting on the surface covered with natural fibres.