로그인시 본인확인과정이 필요할 수 있습니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기
| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0540193 (2014-11-13) |
| 등록번호 | US-9279219 (2016-03-08) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 5 인용 특허 : 306 |
An absorbent cellulosic sheet having a variable local basis weight. The sheet includes a papermaking-fiber reticulum having a plurality of fiber-enriched pileated regions of a relatively high local basis weight each extending a distance in a cross-machine direction (CD) of the sheet, and a plurality
An absorbent cellulosic sheet having a variable local basis weight. The sheet includes a papermaking-fiber reticulum having a plurality of fiber-enriched pileated regions of a relatively high local basis weight each extending a distance in a cross-machine direction (CD) of the sheet, and a plurality of elongated densified regions that interconnect the plurality of fiber-enriched pileated regions. The elongated densified regions (i) have a relatively low local basis weight, and each extending a distance in a machine direction (MD) of the sheet, and (ii) are arranged in a repeating pattern having leading and trailing edges, such that the elongated densified regions are longitudinally staggered with respect to each other.
1. An absorbent cellulosic sheet having a variable local basis weight, the sheet comprising: a papermaking-fiber reticulum having: (a) a plurality of fiber-enriched pileated regions of a relatively high local basis weight, each extending a distance in a cross-machine direction (CD) of the sheet; and
1. An absorbent cellulosic sheet having a variable local basis weight, the sheet comprising: a papermaking-fiber reticulum having: (a) a plurality of fiber-enriched pileated regions of a relatively high local basis weight, each extending a distance in a cross-machine direction (CD) of the sheet; and(b) a plurality of elongated densified regions that interconnect the plurality of fiber-enriched pileated regions, the elongated densified regions (i) having a relatively low local basis weight, each extending a distance in a machine direction (MD) of the sheet, and (ii) being arranged in a repeating pattern having leading and trailing edges, such that the elongated densified regions are longitudinally staggered with respect to each other. 2. The absorbent cellulosic sheet according to claim 1, wherein the plurality of elongated densified regions includes compressed papermaking fibers. 3. The absorbent cellulosic sheet according to claim 1, wherein the MD/CD aspect ratios of the densified regions are at least 1.5. 4. The absorbent cellulosic sheet according to claim 1, wherein the MD/CD aspect ratios of the densified regions are greater than 2. 5. The absorbent cellulosic sheet according to claim 1, wherein the MD/CD aspect ratios of the densified regions are greater than 3. 6. The absorbent cellulosic sheet according to claim 1, wherein the MD/CD aspect ratios of the densified regions are between about 2 and about 10. 7. The absorbent cellulosic sheet according to claim 1, wherein the fiber-enriched pileated regions have a fiber orientation bias along the CD of the sheet. 8. The absorbent cellulosic sheet according to claim 1, wherein the elongated densified regions have a fiber orientation bias along the CD of the sheet. 9. The absorbent cellulosic sheet according to claim 1, wherein the elongated densified regions are substantially identical. 10. The absorbent cellulosic sheet according to claim 1, wherein the fiber-enriched pileated regions are bordered at lateral extremities in the CD by a CD-spaced pair of CD-aligned densified regions. 11. The absorbent cellulosic sheet according to claim 10, wherein the fiber-enriched regions are at least partially bordered in the MD by the leading and trailing edges of an MD-staggered pair of densified regions. 12. The absorbent cellulosic sheet according to claim 1, wherein the sheet has a basis weight in a range of 8 lbs per 3000 square-foot ream to 35 lbs per 3000 square-foot ream and a void volume greater than 7 grams/gram. 13. The absorbent cellulosic sheet according to claim 12, wherein the sheet has a void volume of at least 7 grams/gram and up to 15 grams/gram. 14. The absorbent cellulosic sheet according to claim 12, wherein the sheet has a void volume of at least 8 grams/gram and up to 12 grams/gram. 15. The absorbent cellulosic sheet according to claim 1, wherein the sheet has a basis weight in a range of 20 lbs per 3000 square-foot ream to 35 lbs per 3000 square-foot ream and a void volume of greater than 7 grams/gram. 16. The absorbent cellulosic sheet according to claim 15, wherein the sheet has a void volume of at least 7 grams/gram and up to 15 grams/gram. 17. The absorbent cellulosic sheet according to claim 15, wherein the sheet has a void volume of at least 8 grams/gram and up to 12 grams/gram. 18. The absorbent cellulosic sheet according to claim 1, wherein the sheet has a CD stretch of greater than 5%, and up to about 10%. 19. The absorbent cellulosic sheet according to claim 1, wherein the sheet has a CD stretch of greater than 6%. 20. The absorbent cellulosic sheet according to claim 1, wherein the sheet has a CD stretch of greater than 7%. 21. The absorbent cellulosic sheet according to claim 1, wherein the sheet has a CD stretch of greater than 8%. 22. The absorbent cellulosic sheet according to claim 1, wherein the sheet comprises papermaking fibers that are at least about 10% by weight of recycle fibers. 23. The absorbent cellulosic sheet according to claim 1, wherein the sheet comprises papermaking fibers that are at least about 25% by weight of recycle fibers. 24. The absorbent cellulosic sheet according to claim 1, wherein the sheet comprises papermaking fibers that are at least about 35% by weight of recycle fibers. 25. The absorbent cellulosic sheet according to claim 1, wherein the sheet comprises papermaking fibers that are at least about 45% by weight of recycle fibers. 26. The absorbent cellulosic sheet according to claim 1, wherein the sheet comprises papermaking fibers that are at least about 50% by weight of recycle fibers. 27. The absorbent cellulosic sheet according to claim 1, wherein the sheet comprises papermaking fibers that are at least about 75% by weight of recycle fibers. 28. The absorbent cellulosic sheet according to claim 1, wherein the sheet comprises papermaking fibers that are 100% by weight of recycle fibers. 29. The absorbent cellulosic sheet according to claim 1, wherein the sheet is in the form of a tissue base sheet that has a bulk of at least 5 ((mils/8 plies)/(1 b/ream)) and comprises papermaking fibers that are predominantly hardwood fibers. 30. The absorbent cellulosic sheet according to claim 29, wherein the tissue base sheet has a bulk of at least 6 ((mils/8 plies)/(1b/ream)). 31. The absorbent cellulosic sheet according to claim 29, wherein the tissue base sheet has a bulk of at least 5 and up to 8 ((mils/8 plies)/(1 b/ream)). 32. The absorbent cellulosic sheet according to claim 29, wherein the tissue base sheet is incorporated into a two-ply tissue product. 33. The absorbent cellulosic sheet according to claim 1, wherein the sheet is in the form of a tissue base sheet that has a normalized geometric mean (GM) tensile strength of greater than 21 ((g/3 in)/(lbs/ream)) and a bulk of at least 5 ((mils/8 plies)/(1 b/ream)) and up to about 10 ((mils/8 plies)/(1 b/ream), and comprises papermaking fibers that are predominantly hardwood fibers. 34. The absorbent cellulosic sheet according to claim 33, wherein the tissue base sheet has a normalized GM tensile strength of greater than 21 ((g/3 in)/(lbs/ream)) and up to about 30 ((g/3 in)/(lbs/ream)). 35. The absorbent cellulosic sheet according to claim 34, wherein the tissue base sheet has a normalized GM tensile strength of 25 ((g/3 in)/(lbs/ream)) or greater. 36. The absorbent cellulosic sheet according to claim 33, wherein the tissue base sheet is incorporated into a two-ply tissue product. 37. The absorbent cellulosic sheet according to claim 1, wherein the sheet is in the form of a towel base sheet incorporating mechanical pulp and papermaking fibers, wherein at least 40% by weight of the papermaking fibers is softwood fibers. 38. The absorbent cellulosic sheet according to claim 1, wherein the sheet is in the form of a towel base sheet comprising papermaking fibers, wherein at least 40% by weight of the papermaking fibers is softwood fibers and at least 20% by weight of the papermaking fibers is recycle fibers. 39. The absorbent cellulosic sheet according to claim 38, wherein at least 30% by weight of the papermaking fibers is recycle fibers. 40. The absorbent cellulosic sheet according to claim 38, wherein at least 40% by weight of the papermaking fibers is recycle fibers. 41. The absorbent cellulosic sheet according to claim 38, wherein at least 50% by weight of the papermaking fibers is recycle fibers. 42. The absorbent cellulosic sheet according to claim 38, wherein at least 75% by weight of the papermaking fibers is recycle fibers. 43. The absorbent cellulosic sheet according to claim 38, wherein 100% by weight of the papermaking fibers is recycle fibers. 44. The absorbent cellulosic sheet according to claim 38, wherein the towel base sheet has a basis weight in the range of 12 to 22 lbs per 3000 square-foot ream and an 8-sheet caliper of greater than 90 mils, and up to about 120 mils. 45. The absorbent cellulosic sheet according to claim 38, wherein the towel base sheet is converted into a towel with a CD stretch of at least about 6%. 46. The absorbent cellulosic sheet according to claim 45, wherein the towel has a CD stretch in the range of from 6% to 10%. 47. The absorbent cellulosic sheet according to claim 46, wherein the towel has a CD stretch of at least 7%. 48. The absorbent cellulosic sheet according to claim 1, wherein the sheet is in the form of a towel base sheet that has an MD bending length from about 3.5 cm to about 5 cm and comprises papermaking fibers, wherein at least 40% by weight of the papermaking fibers is softwood fibers and at least 20% by weight of the papermaking fibers is recycle fibers. 49. The absorbent cellulosic sheet according to claim 48, wherein the MD bending length of the towel base sheet is from about 3.75 cm to about 4.5 cm. 50. The absorbent cellulosic sheet according to claim 48, wherein at least 30% by weight of the papermaking fibers is recycle fibers. 51. The absorbent cellulosic sheet according to claim 48, wherein at least 40% by weight of the papermaking fibers is recycle fibers. 52. The absorbent cellulosic sheet according to claim 48, wherein at least 50% by weight of the papermaking fibers is recycle fibers. 53. The absorbent cellulosic sheet according to claim 48, wherein at least 75% by weight of the papermaking fibers is recycle fibers. 54. The absorbent cellulosic sheet according to claim 48, wherein 100% by weight of the papermaking fibers is recycle fibers. 55. The absorbent cellulosic sheet according to claim 48, wherein the towel base sheet has a bulk of greater than 2.5 ((mils/8 plies)/(1 b/ream)). 56. The absorbent cellulosic sheet according to claim 48, wherein the towel base sheet has a bulk of greater than 2.5 ((mils/8 plies)/(1 b/ream)) up to about 3 ((mils/8 plies)/(1 b/ream)). 57. The absorbent cellulosic sheet according to claim 56, wherein the towel base sheet has a bulk of at least 2.75 ((mils/8 plies)/(1 b/ream)).
해당 특허가 속한 카테고리에서 활용도가 높은 상위 5개 콘텐츠를 보여줍니다.
더보기 버튼을 클릭하시면 더 많은 관련자료를 살펴볼 수 있습니다.
Copyright KISTI. All Rights Reserved.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.