Marked multi-ply paper sheets and method and equipment for their

Details Marked multi-ply paper sheets and method and equipment for their Marked multi-ply paper sheets and method and equipment for their

1993-10-20

1995-08-22

Loney, Donald J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

428152, 428154, 428166, 428178, 428198, 428535, 156209, 156290, 162109, 162113, 162117, B32B 300, B31F 120, D21H 1100

Patent

active

054438896

ABSTRACT:
A paper sheet having several distinct layers comprised of at least two plies of paper glued together in discrete areas and characterized by having patterns which correspond to areas of reduced thickness on both outer surfaces of the plies of paper.

REFERENCES:
patent: 4320162 (1982-03-01), Schulz
patent: 4978565 (1990-12-01), Pigneul

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