Process for producing a crimp-bonded fibrous cellulosic laminate

Details Process for producing a crimp-bonded fibrous cellulosic laminate Process for producing a crimp-bonded fibrous cellulosic laminate

1994-03-14

1996-08-06

Ryan, Patrick J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428171, 428178, 428152, 1562737, 1562755, 156281, 1563073, 156313, 156324, 1563077, B32B 310

Patent

active

055432026

ABSTRACT:
Disclosed is a process for producing a crimp-bonded fibrous cellulosic laminate. The process includes the steps of: 1) providing at least two superposed plies of a fibrous cellulosic material; 2) passing the superposed plies through a crimp roll arrangement including a rotating crimp element and a rotating anvil element; and 3) applying a pressure load against the rotating elements sufficient to crimp bond the fibrous cellulosic material plies into a laminate. The crimp element has protruding members configured in a discontinuous pattern aligned on an axis that is parallel to the cross-machine direction to provide a substantially continuous uniform area of localized surface contacts between the rotating crimp and anvil elements across the width of the plies. Also disclosed is an overall crimp-bonded fibrous cellulosic laminate and an apparatus for crimp-bonding multiple superposed plies of a fibrous cellulosic material.

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