Method and apparatus for strengthening a textile web

Abstract

A method and an apparatus for strengthening a textile web ( 8 ), especially a felt web, by needling parallel yarns ( 11 ) in the longitudinal direction are described. In order to provide an advantageous structure of the textile web ( 8 ) it is proposed that the yarns ( 11 ) are needled onto the textile web ( 8 ) at a lateral distance from one another and with a needling limited to the yarn zones.

1 . A method for strengthening a textile web, especially a felt web, by needling parallel yarns in the longitudinal direction, wherein the yarns are needled onto the textile web at a lateral distance from one another and with a needling limited to the yarn zones.  
     
     
         2 . An apparatus for performing the method as claimed in  claim 1  with a drivable needle board equipped with needles and reciprocating in the direction of the needle penetration and with a stitch base opposite of the needle board which forms a guide surface for the textile web which can be drawn off in the direction of passage of the textile web, wherein the stitch base ( 2 ) is provided in the guide surface for the textile web ( 8 ) with parallel guide grooves ( 13 ) for the yarns ( 11 ) to be needled, which grooves are aligned in the direction of passage ( 7 ) of the textile web ( 8 ) and that the needles ( 6 ) of the needle board ( 4 ) penetrate the guide grooves ( 13 ).