Web stabilization on a slip and cut applicator

Details Web stabilization on a slip and cut applicator Web stabilization on a slip and cut applicator

B - Operations, Transporting

65

H

B65H 20/12 (2006.01) B65H 23/02 (2006.01) B65H 27/00 (2006.01) A61F 13/15 (2006.01)

Patent

CA 2547438

This invention proposes a new, improved method and apparatus for applying web segments to a traveling web. Ears, or wings, are placed on a running web of disposable diapers. Because these webs are often asymmetrical or otherwise incompatible with the principle of slipping over the surface of a moving vacuum roll, the webs may float from side to side or otherwise be drawn out of square by asymmetrical forces. A vacuum groove is provided on a vacuum roll to counter these effects. Alternatively, a ridge with vacuum about the ridge is provided, also to pull a machine direction line of material into the groove or over the ridge, thereby giving the web some degree of cross-directional stability.

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