Fabric creped absorbent sheet with variable local basis weight
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B31F-001/07
B31F-001/12
출원번호
US-0924233
(2010-09-23)
등록번호
US-8152957
(2012-04-10)
발명자
/ 주소
Edwards, Steven L.
Super, Guy H.
McCullough, Stephen J.
Reeb, Ronald R.
Chou, Hung Liang
Yeh, Kang Chang
Dwiggins, John H.
Harper, Frank D.
출원인 / 주소
Georgia-Pacific Consumer Products LP
대리인 / 주소
Fitzpatrick, Cella, Harper & Scinto
인용정보
피인용 횟수 :
58인용 특허 :
246
초록▼
An absorbent cellulosic sheet having a variable local basis weight includes a papermaking-fiber reticulum provided with (a) a plurality of elongated densified regions of compressed papermaking fibers, the densified regions being oriented generally along the machine direction (MD) of the sheet and ha
An absorbent cellulosic sheet having a variable local basis weight includes a papermaking-fiber reticulum provided with (a) a plurality of elongated densified regions of compressed papermaking fibers, the densified regions being oriented generally along the machine direction (MD) of the sheet and having a relatively low local basis weight, as well as leading and trailing edges at their longitudinal extremities, and (b) a plurality of fiber-enriched, pileated regions connected with the plurality of elongated densified regions, the pileated regions having (i) a relatively high local basis weight and (ii) a plurality of cross-machine direction (CD) extending crests having concamerated CD profiles such that the extending crests of the pileated regions are arcuate and extend around the leading and trailing edges of the plurality of elongated densified regions.
대표청구항▼
1. An absorbent cellulosic sheet having a variable local basis weight, the sheet comprising: a papermaking-fiber reticulum provided with: (a) a plurality of elongated densified regions of compressed papermaking fibers, the densified regions being oriented generally along the machine direction (MD) o
1. An absorbent cellulosic sheet having a variable local basis weight, the sheet comprising: a papermaking-fiber reticulum provided with: (a) a plurality of elongated densified regions of compressed papermaking fibers, the densified regions being oriented generally along the machine direction (MD) of the sheet and having a relatively low local basis weight, as well as leading and trailing edges at their longitudinal extremities; and(b) a plurality of fiber-enriched, pileated regions connected with the plurality of elongated densified regions, the pileated regions having (i) a relatively high local basis weight and (ii) a plurality of cross-machine direction (CD) extending crests having concamerated CD profiles such that the extending crests of the pileated regions are arcuate and extend around corresponding leading and trailing edges of the plurality of elongated densified regions. 2. The absorbent cellulosic sheet according to claim 1, wherein representative areas within the fiber-enriched regions exhibit a characteristic local basis weight at least 25% higher than a characteristic local basis weight of representative areas within the densified regions. 3. The absorbent cellulosic sheet according to claim 2, wherein the characteristic local basis weight of representative areas within the fiber-enriched regions is at least 35% higher than the characteristic local basis weight of representative areas within the densified regions. 4. The absorbent cellulosic sheet according to claim 2, wherein the characteristic local basis weight of representative areas within the fiber-enriched regions is at least 50% higher than the characteristic local basis weight of representative areas within the densified regions. 5. The absorbent cellulosic sheet according to claim 2, wherein the characteristic local basis weight of representative areas within the fiber-enriched regions is at least 75% higher than the characteristic local basis weight of representative areas within the densified regions. 6. The absorbent cellulosic sheet according to claim 2, wherein the characteristic local basis weight of representative areas within the fiber-enriched regions is at least 100% higher than the characteristic local basis weight of representative areas within the densified regions. 7. The absorbent cellulosic sheet according to claim 2, wherein the characteristic local basis weight of representative areas within the fiber-enriched regions is at least 150% higher than the characteristic local basis weight of representative areas within the densified regions. 8. The absorbent cellulosic sheet according to claim 2, wherein the characteristic local basis weight of representative areas within the fiber-enriched regions is from 25% to 200% higher than the characteristic local basis weight of representative areas within the densified regions. 9. An absorbent cellulosic sheet having a variable local basis weight, the sheet comprising: a papermaking-fiber reticulum provided with (i) a plurality of fiber-enriched pileated regions of a relatively high local basis weight each extending a distance in the cross-machine direction (CD) of the sheet and having a fiber bias toward the CD of the sheet adjacent to (ii) a plurality of elongated densified regions of a relatively low local basis weight each extending a distance in the machine direction (MD) of the sheet, the densified regions being arranged in a repeating pattern having leading and trailing edges, such that the densified regions are longitudinally staggered with respect to each other,wherein the fiber-enriched regions are interspersed between and connected with the densified regions, andwherein the densified regions occupy from about 5% to about 30% of the area of the sheet, and the fiber-enriched regions occupy from about 95% to about 50% of the area of the sheet. 10. An absorbent cellulosic sheet having a variable local basis weight, the sheet comprising: (i) a plurality of fiber-enriched regions of a relatively high local basis weight each extending a distance in the cross-machine direction (CD) of the sheet; and(ii) a plurality of elongated densified regions of a low basis weight each extending a distance in the machine direction (MD) of the sheet, the densified regions being arranged in a repeating pattern having leading and trailing edges, such that the densified regions are longitudinally staggered with respect to each other,wherein the fiber-enriched regions are interspersed between and connected with the densified regions,wherein the densified regions occupy from about 5% to about 30% of the area of the sheet, and the fiber-enriched regions occupy from about 95% to about 50% of the area of the sheet, andwherein representative areas within the fiber-enriched regions exhibit a characteristic local basis weight at least 25% higher than a characteristic local basis weight of representative areas within the densified regions. 11. The absorbent cellulosic sheet according to claim 10, wherein the characteristic local basis weight of representative areas within the fiber-enriched regions is at least 35% higher than the characteristic local basis weight of representative areas within the densified regions. 12. The absorbent cellulosic sheet according to claim 10, wherein the characteristic local basis weight of representative areas within the fiber-enriched regions is at least 50% higher than the characteristic local basis weight of representative areas within the densified regions. 13. The absorbent cellulosic sheet according to claim 10, wherein the characteristic local basis weight of representative areas within the fiber-enriched regions is at least 75% higher than the characteristic local basis weight of representative areas within the densified regions. 14. The absorbent cellulosic sheet according to claim 10, wherein the characteristic local basis weight of representative areas within the fiber-enriched regions is at least 100% higher than the characteristic local basis weight of representative areas within the densified regions. 15. The absorbent cellulosic sheet according to claim 10, wherein the characteristic local basis weight of representative areas within the fiber-enriched regions is at least 150% higher than the characteristic local basis weight of representative areas within the densified regions. 16. The absorbent cellulosic sheet according to claim 10, wherein the characteristic local basis weight of representative areas within the fiber-enriched regions is from 25% to 200% higher than the characteristic local basis weight of representative areas within the densified regions. 17. An absorbent cellulosic sheet having a variable local basis weight, the sheet comprising: (i) a plurality of fiber-enriched regions of a relatively high local basis weight each extending a distance in the cross-machine direction (CD) of the sheet; and(ii) a plurality of elongated densified regions of a low basis weight each extending a distance in the machine direction (MD) of the sheet, the densified regions being arranged in a repeating pattern having leading and trailing edges, such that the densified regions are longitudinally staggered with respect to each other,wherein the fiber-enriched regions are interspersed between and connected with the densified regions, andwherein the distance that the fiber-enriched regions extend in the CD is from about 0.25 to about 3 times the distance that the densified regions extend in the MD. 18. The absorbent sheet according to claim 17, wherein the fiber-enriched regions are pileated regions having a plurality of macrofolds. 19. The absorbent sheet according to claim 17, wherein the densified regions have an MD/CD aspect ratio of greater than 2. 20. The absorbent sheet according to claim 17, wherein the densified regions have an MD/CD aspect ratio of greater than 3. 21. The absorbent sheet according to claim 17, wherein the densified regions have an MD/CD aspect ratio of between about 2 and 6. 22. An absorbent cellulosic sheet having a variable local basis weight, the sheet comprising: a papermaking-fiber reticulum provided with: (a) a plurality of elongated densified regions of compressed papermaking fibers, the densified regions being oriented generally along the machine direction (MD) of the sheet and having a relatively low local basis weight, as well as leading and trailing edges at their longitudinal extremities; and(b) a plurality of fiber-enriched, pileated regions connected with the plurality of elongated densified regions, the pileated regions having (i) a relatively high local basis weight and (ii) a plurality of cross-machine direction (CD) extending crests having concamerated CD profiles such that the extending crests of the pileated regions arch around corresponding leading and trailing edges of the plurality of elongated densified regions. 23. The absorbent cellulosic sheet according to claim 22, wherein representative areas within the fiber-enriched regions exhibit a characteristic local basis weight at least 25% higher than a characteristic local basis weight of representative areas within the densified regions. 24. The absorbent cellulosic sheet according to claim 23, wherein the characteristic local basis weight of representative areas within the fiber-enriched regions is at least 35% higher than the characteristic local basis weight of representative areas within the densified regions. 25. The absorbent cellulosic sheet according to claim 23, wherein the characteristic local basis weight of representative areas within the fiber-enriched regions is at least 50% higher than the characteristic local basis weight of representative areas within the densified regions. 26. The absorbent cellulosic sheet according to claim 23, wherein the characteristic local basis weight of representative areas within the fiber-enriched regions is at least 75% higher than the characteristic local basis weight of representative areas within the densified regions. 27. The absorbent cellulosic sheet according to claim 23, wherein the characteristic local basis weight of representative areas within the fiber-enriched regions is at least 100% higher than the characteristic local basis weight of representative areas within the densified regions. 28. The absorbent cellulosic sheet according to claim 23, wherein the characteristic local basis weight of representative areas within the fiber-enriched regions is at least 150% higher than the characteristic local basis weight of representative areas within the densified regions. 29. The absorbent cellulosic sheet according to claim 23, wherein the characteristic local basis weight of representative areas within the fiber-enriched regions is from 25% to 200% higher than the characteristic local basis weight of representative areas within the densified regions.
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이 특허에 인용된 특허 (246)
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O'Donnell, Hugh Joseph; Turner, Robert Haines; Breidenbach, Vincent Sean; Benson, Douglas Herrin; Mullane, Timothy Ian; McAffry, Karen Denise; Hammons, John Lee; Arora, Kelyn Anne, Method and apparatus for making an apertured web.
Sze, Daniel H.; Chou, Hung Liang; Fan, Xiaolin, Method of creping a cellulosic sheet using a multilayer creping belt having openings to make paper products, and paper products made using a multilayer creping belt having openings.
Edwards, Steven L.; Super, Guy H.; McCullough, Stephen J.; Reeb, Ronald R.; Chou, Hung Liang; Yeh, Kang Chang; Dwiggins, John H.; Harper, Frank D., Method of making a belt-creped absorbent cellulosic sheet.
Edwards, Steven L.; Super, Guy H.; McCullough, Stephen J.; Reeb, Ronald R.; Chou, Hung Liang; Yeh, Kang Chang; Dwiggins, John H.; Harper, Frank D., Method of making a belt-creped absorbent cellulosic sheet.
Super, Guy H.; Ruthven, Paul J.; McCullough, Stephen J.; Sze, Daniel H.; Wendt, Greg A.; Miller, Joseph H., Method of making a belt-creped, absorbent cellulosic sheet with a perforated belt.
Super, Guy H.; Ruthven, Paul J.; McCullough, Stephen J.; Sze, Daniel H.; Wendt, Greg A.; Miller, Joseph H., Method of making a belt-creped, absorbent cellulosic sheet with a perforated belt.
Edwards, Steven L.; Super, Guy H.; McCullough, Stephen J.; Reeb, Ronald R.; Chou, Hung Liang; Yeh, Kang Chang; Dwiggins, John H.; Harper, Frank D., Method of making a fabric-creped absorbent cellulosic sheet.
Edwards, Steven L.; Super, Guy H.; McCullough, Stephen J.; Reeb, Ronald R.; Chou, Hung Liang; Yeh, Kang Chang; Dwiggins, John H.; Harper, Frank D., Method of making a fabric-creped absorbent cellulosic sheet.
Murray, Frank C.; Wendt, Greg A.; Edwards, Steven L.; McCullough, Stephen J.; Super, Guy H., Method of making a fabric-creped absorbent cellulosic sheet.
Edwards, Steven L.; Super, Guy H.; McCullough, Stephen J.; Reeb, Ronald R.; Chou, Hung Liang; Yeh, Kang Chang; Dwiggins, John H.; Harper, Frank D., Method of making a fabric-creped absorbent cellulosic sheet with improved dispensing characteristics.
Miller, Joseph H.; Sumnicht, Daniel W.; Bernard, Ayanna M.; Wahal, Sanjay, Method of making a multi-ply wiper/towel product with cellulosic microfibers.
Super, Guy H.; Ruthven, Paul J.; McCullough, Stephen J.; Sze, Daniel H.; Wendt, Greg A.; Miller, Joseph H., Methods of making a belt-creped absorbent cellulosic sheet prepared with a perforated polymeric belt.
Super, Guy H.; Ruthven, Paul J.; McCullough, Stephen J.; Sze, Daniel H.; Wendt, Greg A.; Miller, Joseph H., Methods of making a belt-creped absorbent cellulosic sheet prepared with a perforated polymeric belt.
Edwards, Steven L.; Super, Guy H.; McCullough, Stephen J.; Reeb, Ronald R.; Chou, Hung Liang; Yeh, Kang Chang; Dwiggins, John H.; Harper, Frank D., Multi-ply absorbent sheet of cellulosic fibers.
Edwards, Steven L.; Super, Guy H.; McCullough, Stephen J.; Reeb, Ronald R.; Chou, Hung Liang; Yeh, Kang Chang; Dwiggins, John H.; Harper, Frank D., Multi-ply absorbent sheet of cellulosic fibers.
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