Multi-ply fibrous sheet structure and its manufacture

Stock material or miscellaneous articles – Structurally defined web or sheet – Continuous and nonuniform or irregular surface on layer or...

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Details

156209, 156210, 162113, 162117, 162205, 428156, 428166, 428172, 428178, 428184, 428212, 428332, B32B 328, B32B 2900

Patent

active

043201628

ABSTRACT:
In the manufacture of a multi-ply fibrous sheet structure, each of a pair of plies of fibrous web material is provided with a pattern of relatively deep, primary, spot embossments each adherent to the opposite ply and surrounded by a pattern of relatively shallow, secondary, non-adherent spot embossments.

REFERENCES:
patent: 2854336 (1958-09-01), Gutnecht
patent: 3708366 (1973-01-01), Donnelly
patent: 3867225 (1975-02-01), Nystrand
patent: 3868205 (1975-02-01), Thomas

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