Abstract: The present invention relates to a process for the manufacture of a three-dimensional nonwoven, a manufacturing line for implementing this process and the resulting three-dimensional nonwoven product. Process characterized in that it consists in using a folding element (5) to apply, to an incoming web containing a proportion of thermoplastic fibers and/or filaments or fixing material, an initial fixing of the fold of the incoming web in the form of peaks and troughs, brought about by blades extending radially on ends of the folding element (5), this initial fixing being applied either by maintaining the folding element (5) itself at a set temperature, or by heating the incoming web. The invention is more particularly applicable to the textile industry, especially the manufacture of nonwovens.

Abstract: The present invention relates to a process for the manufacture of a three-dimensional nonwoven, a manufacturing line for implementing this process and the resulting three-dimensional nonwoven product. Process characterized in that it consists in using a folding element (5) to apply, to an incoming web containing a proportion of thermoplastic fibres and/or filaments or fixing material, an initial fixing of the fold of the incoming web in the form of peaks and troughs, brought about by blades extending radially on ends of the folding element (5), this initial fixing being applied either by maintaining the folding element (5) itself at a set temperature, or by heating the incoming web. The invention is more particularly applicable to the textile industry, especially the manufacture of nonwovens.

Abstract: A continuous rolling machine for web materials includes two independent driving rolls (4 and 5) co-operating with a take-up reel (3A, 3B). A winding method with controlled application load of the driving rolls is also disclosed. At least one of the driving rolls of the winding device (2) is in contact with the take-up reel (3A, 3B), from the start of the phase for preparing a new reel (3A) until the finished reel has completely stopped, one (4) of the driving rolls being in contact with the reel soon after the start of the latter's (3A) formation and until the finished reel has completely stopped (3B), the other driving roll (5) being in contact with the reel from the start of the latter's (3B) formation until its release (3B), prior to connecting a new reel.

Abstract: A method for filling a gas-insulated electric current transmission line with gas using an insulating gas mixture, which line comprises an outer tubular sheath, at least one conductor internal to the sheath and coaxial with this sheath, and a space lying between the at least one conductor and the outer sheath, comprising the steps of: a) applying at least one purging cycle to the space comprising: a pumping step, down to a first vacuum level; a purge step comprising introducing a purge gas and obtaining a first internal atmosphere including the purge gas; b) applying to the space a filling cycle comprising: a pumping step, down to a second vacuum level; a filling step using the insulating gas to obtain a second internal atmosphere.

Abstract: The present invention relates to a device for precise connection for a continuous unrolling machine, comprising at least a means (3) for unrolling two spools, a strip accumulator (4) and a device for connecting ending strips (1) and new strips (2).

Abstract: The present invention relates to a device for end to end connecting for a machine for continuously unrolling, with end to end connection between two strips, an ending strip (1) and a new strip (2), comprising at least means (3) for unrolling two spools, an accumulator for the strip (4) and a device for connecting and cutting.