Method and apparatus for applying stripes to a moving web

Details Method and apparatus for applying stripes to a moving web Method and apparatus for applying stripes to a moving web

B - Operations, Transporting

41

M

B41M 3/14 (2006.01) B41F 19/06 (2006.01) B65H 37/00 (2006.01)

Patent

CA 2282122

An apparatus and method is disclosed for applying discrete stripes to individual documents on sheets during a document production process. Each of the sheets includes a plurality of rows of documents. The stripes are carried by ribbons each of which is associated with a respective row of documents. The apparatus includes a drive to advance the ribbons from unwind reels to take-up reels. A nip is intermediate the unwind reels and the take-up reels through which the ribbons and successive sheets pass to apply stripes to the documents. A ribbon speed modulator acts on the ribbons to modulate the speed of the ribbons passing through the nip so that the speed of the ribbons passing through the nip coincides generally with the speed of the sheets passing through the nip without changing the speed at which the ribbons are advanced by the drive.

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