Fabric-creped absorbent cellulosic sheet having a variable local basis weight

• Main Authors: EDWARDS STEVEN L, REEB RONALD R, CHOU HUNG LIANG, YEH KANG CHANG, MCCULLOUGH STEPHEN J, HARPER FRANK D, DWIGGINS JOHN H, SUPER GUY H
• Format: Patent
• Language: English
• Published: 19.03.2013
• Subjects: GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; IMPREGNATING OR COATING OF PAPER; MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNERANALOGOUS TO PAPER; MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD ORMATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; METHODS OF PRODUCING PAPER THEREON; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PAPER-MAKING MACHINES; PERFORMING OPERATIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TEXTILES; TRANSPORTING; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUSTO PAPER

An absorbent cellulosic sheet having a variable local basis weight includes a patterned papermaking-fiber reticulum provided with (a) a plurality of generally machine direction (MD) oriented elongated densified regions of compressed paper-making fibers having a relatively low local basis weight as well as leading and trailing edges, the densified regions being arranged in a repeating pattern of a plurality of generally parallel linear arrays that are longitudinally staggered with respect to each other such that a plurality of intervening linear arrays are disposed between a pair of cross machine (CD) direction aligned densified regions, and (b) a plurality of fiber-enriched, pileated regions having a relatively high local basis weight interspersed between and connected with the densified regions, the pileated regions having crests extending generally in the cross-machine direction of the sheet.