Production of double wall corrugated web

Details Production of double wall corrugated web Production of double wall corrugated web

B - Operations, Transporting

32

B

B32B 29/08 (2006.01) B31F 1/28 (2006.01)

Patent

CA 2279818

A synchronized flute double wall corrugated paperboard web is produced in a corrugating apparatus utilizing cooperatively operated single facers to provide an intermediate single face web with corrugated media on both faces, and then combining outer liners to both corrugated media immediately prior to on entry into the double backer utilizing a glue applicator that precludes glue line disturbance. The system may also be operated to produce conventional double wall board or single wall board utilizing either of the single facers. A synchronized flute double wall board provides enhanced strength and may be run on this corrugator at the same speed as single wall board.

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