Mechanism and method for bonding paper sheets on...

Details Mechanism and method for bonding paper sheets on... Mechanism and method for bonding paper sheets on...

2008-02-25

2011-10-04

Harmon, Christopher (Department: 3721)

Manufacturing container or tube from paper; or other manufacturi

Bending

Form-scoring

C493S454000, C493S397000, C493S464000, C493S401000, C493S407000, C493S416000, C493S424000, C493S435000

Reexamination Certificate

active

08029429

ABSTRACT:
In a mechanism and method for bonding two paper sheets on an interfolding machine, pre-compressing mechanisms are provided on each of two folding rollers to produce compress-to-bond areas on overlapped portions of two thick or air-impermeable paper sheets transferred to the two folding rollers, so that all plies of the two paper sheets at the compress-to-bond areas are compressed to bond together. Thereby, when the interfolding machine operates at a high speed, a plurality of the locally compressed and bonded paper sheets may still be smoothly folded to form a stack of interfolded paper sheets, such as a tissue paper stack or a paper towel stack.

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