Method of manufacturing hook and loop fastener strip, device therefore and hook and loop fastener strip

Abstract

Method for the production of at least one strip of male or female touch and close fastener ( 2,3 ) respectively, consisting of at least a support ( 4 ) with hooks ( 8 ) or loops ( 9 ) respectively on at least one side of it, in which a part of the strip does not have hooks ( 8 ) or loops ( 9 ), characterised in that the hooks ( 8 ) or loops ( 9 ) are selectively mechanically removed from a part of the touch and close fastener strip ( 2,3 ).

1 . Method for the production of at least one strip of male or female touch and close fastener ( 2 , 3 ) respectively, consisting of at least a support ( 4 ) with hooks ( 8 ) or loops ( 9 ) respectively on at least one side of it, in which a part of the strip does not have hooks ( 8 ) or loops ( 9 ), characterised in that the hooks ( 8 ) or loops ( 9 ) are selectively mechanically removed from a part of the touch and close fastener strip ( 2 , 3 ) by cutting or shaving off the hooks or loops. 
     
     
         2 . Method according to  claims 1 , characterised in that the hooks ( 8 ) and or loops ( 9 ), together with the pile thread ( 7 ) from which they are formed, are removed down to close to the support ( 4 ). 
     
     
         3 . Method according to  claim 1  or  2 , characterised in that the touch and close fastener ( 2 , 3 ) consists of a woven or knitted support ( 4 ) and that the hooks ( 8 ) or loops ( 9 ) are formed by pile threads ( 7 ) incorporated into this support ( 4 ). 
     
     
         4 . Method according to any one of the previous claims, characterised in that it is applied to the strip in the longitudinal direction, and that at least a part of the surface from which the hooks ( 8 ) or loops ( 9 ) are removed forms a sewing edge ( 18 ). 
     
     
         5 . Method according to any one of the previous claims, characterised in that at least two strips of a touch and close fastener ( 16 ,  17 ) are produced that are next to one another in the longitudinal direction, and which are each connected by a sewing edge ( 10 ) to a sewing edge ( 18 ) of adjacent strips ( 16 ,  17 ). 
     
     
         6 . Method according to  claim 4  or  5 , characterised in that supplementary, touch and close fastener strips ( 16 ,  17 ) are separated from one another by severing the connection between the sewing edges ( 18 ). 
     
     
         7 . Method according to any one of the previous claims, characterised in that the method is used for producing touch and close fastener ( 2 ,  3 ) with a reduced fastening strength. 
     
     
         8 . Method according to any one of the previous claims, characterised in that the support ( 4 ) of the touch and close fastener strip ( 2 , 3 ) has a backing on the side where there are no hooks ( 8 ) or loops ( 9 ). 
     
     
         9 . Male or female touch and close fastener ( 2 , 3 ) consisting of at least a support ( 4 ) and hooks ( 8 ) or loops ( 9 ) respectively, a part ( 18 ) of which does not have hooks ( 8 ) or loops ( 9 ), characterised in that the support ( 4 ) of that part ( 18 ) has residues ( 15 ) of the material ( 7 ) that forms the hocks ( 8 ) or loops ( 9 ), from which the hooks ( 8 ) or loops ( 9 ) have been mechanically removed by cutting or shaving off. 
     
     
         10 . Device ( 11 ) for producing at least one touch and close fastener strip ( 16 ,  17 ) with at least a support ( 4 ) and hooks ( 8 ) or loops ( 9 ), of which at least one part ( 18 ) extending in the longitudinal direction does not have hooks ( 8 ) or loops ( 9 ), which has mechanical removal means ( 13 ) to remove hooks or loops from a touch and close fastener strip ( 2 , 3 ) and transport facilities to move these means ( 13 ) and the touch and close fastener ( 2 , 3 ) with respect to one another in the longitudinal direction of the touch and close fastener ( 2 , 3 ),
 characterised in that the mechanical removal means consist of a rotating disk ( 13 ) with a shaving or cutting effect.   
     
     
         11 . Device according to  claim 10  or  11  characterised in that it is intended for the production of at least two touch and close fastener strips ( 16 , 17 ), and additionally has means ( 20 ) to separate the touch and close fastener strips ( 16 , 17 ) from one another at the location of the removed hooks ( 8 ) or loops ( 9 ).