Method and apparatus for contour multi-level embossing with perf

Details Method and apparatus for contour multi-level embossing with perf Method and apparatus for contour multi-level embossing with perf

1996-03-20

1998-03-17

Burr, Edgar S.

Printing

Embossing or penetrating

Rolling-contact machines

428133, B31F 107

Patent

active

057274584

ABSTRACT:
An embossing apparatus and method which provides a better embossed appearance and eliminates undesired roughness on the backside of the web material. Two plies are multilevel embossed between rigid engraved rolls and backup rolls, which may be either engraved or smooth. One rigid roll has embossing elements of varying heights and perforation elements, which run in a side-by-side relationship with the corresponding perforation elements on the opposing rigid roll in a nip region of the apparatus. The multiple plies are perforation bonded between the perforation elements, which are preferably the two highest elements, thus reinforcing the other multi-level embossed pattern formed in between the perforation bonds. The embossed patterns impart a quilt-like contoured appearance to the finished product.

REFERENCES:
patent: 2931748 (1960-04-01), Muller
patent: 3323983 (1967-06-01), Palmer et al.
patent: 3953638 (1976-04-01), Kemp
patent: 4307141 (1981-12-01), Walbrun
patent: 4320162 (1982-03-01), Schulz
patent: 4543142 (1985-09-01), Kuepper et al.
patent: 4758297 (1988-07-01), Calligarich
patent: 4921034 (1990-05-01), Burgess et al.
patent: 5066531 (1991-11-01), Legg
patent: 5269983 (1993-12-01), Schulz

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