EP 0003377 A1 19790808 - Ply-separable absorbent paper sheet and process for its manufacture.
Title (en)
Ply-separable absorbent paper sheet and process for its manufacture.
Title (de)
Absorbierendes aus mehreren trennbaren Lagen bestehendes Papierblatt und Verfahren für dessen Herstellung.
Title (fr)
Feuille de papier absorbant à couches multiples séparables et son procédé de fabrication.
Publication
Application
Priority
US 87078578 A 19780119
Abstract (en)
An improved process to produce a novel tissue which becomes ply-separable during the papermaking process. In a first embodiment of the invention a two-layered stratified web is formed, having a first layer (113a) comprised of a relatively high consistency slurry of long papermaking fibers and a second layer (113b) comprised of a lower consistency slurry of relatively short papermaking fibers. In a second embodiment of the invention, a stratified web having three layers is formed, comprised of well-bonded layers separated by an interior barrier layer. These improved tissue products need not be creped from a creping roll with a doctor blade in order to exhibit ply-separability, and they may be creped in a single step to form a finished product which is creped all the way through.
IPC 1-7
IPC 8 full level
A47K 10/16 (2006.01); D21F 1/00 (2006.01); D21F 11/00 (2006.01); D21F 11/04 (2006.01); D21H 27/40 (2006.01)
CPC (source: EP)
A47K 10/16 (2013.01); D21F 11/006 (2013.01); D21F 11/04 (2013.01); D21H 27/40 (2013.01)
Citation (search report)
- US 3994771 A 19761130 - MORGAN JR GEORGE, et al
- DE 2528311 A1 19760108 - KIMBERLY CLARK CO
- US 3778341 A 19731211 - PLUMMER C, et al
- DE 2543495 A1 19760415 - BELOIT CORP
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
EP 0003377 A1 19790808; CA 1107109 A 19810818; JP S54147208 A 19791117
DOCDB simple family (application)
EP 79200027 A 19790116; CA 319783 A 19790117; JP 470379 A 19790119