Abstract: The invention relates to a process for the manufacture of a nonwoven web using filaments of melted polymers, of the type including the steps of spinning the polymer or polymers, of cooling, drawing and laying down fibers on a belt and of bonding said fibers by calendering in order to form said nonwoven web (15), which process furthermore includes a treatment (13, 14) of setting/adjusting the degree of crystallinity of and the internal tension in the fibers making up the nonwoven web. The invention also relates to the nonwovens obtained by the process and to the installations for implementing it.
Type:
Grant
Filed:
October 12, 1995
Date of Patent:
November 10, 1998
Assignee:
Fiberweb Sodoca Sarl
Inventors:
Philippe Ehret, Philippe Guipouy, Kimmo Lahtenkorva