IP Library Granted Patent US 11,807,992
Granted Patent B2
US 11,807,992 · App. 17/121,879 · Granted Nov 7, 2023

Soft tissue produced using a structured fabric and energy efficient pressing

Inventors: Byrd Tyler Miller, IV (Easley, SC); Justin S. Pence (Williamston, SC); James E. Sealey (Belton, SC)
Assignee: First Quality Tissue, LLC
D21H27/005D21H5/14D21H11/12D21H17/28D21H17/375D21H21/14D21H21/18D21H21/20D21H21/22D21H21/24D21H21/28D21H27/002D21H27/30D21H27/40
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Quick Facts
Patent No.
US 11,807,992
App. No.
17/121,879
Granted
Nov 7, 2023
Kind
B2
Abstract

A structured rolled sanitary tissue product having at least two plies, wherein the structured rolled sanitary tissue product has a crumple resistance of less than 30 grams force, a caliper of at least 450 microns/ply, and a bulk softness (TS7) of 10 or less.

Claims (69)

1. A structured rolled sanitary tissue product comprising at least two plies, wherein the tissue product has a crumple resistance of less than 30 grams force, an average peak to valley depth of 44 to 110 microns, and a caliper of 500 microns/2 ply to 700 microns/2 ply.

2. The structured tissue product of claim 1 , wherein a web that makes up one of the at least two plies comprises a first exterior layer, an interior layer and a second exterior layer; and

the interior layer contains a first wet end additive comprising an ionic surfactant and a second wet end additive comprising a non-ionic surfactant.

3. The structured tissue product according to claim 2 , wherein the first exterior layer comprises at least 50% virgin hardwood fibers.

4. The structured tissue product according to claim 3 , wherein the virgin hardwood fibers is virgin eucalyptus fibers.

5. The structured tissue product according to claim 2 , wherein the first exterior layer comprises at least 75% virgin hardwood fibers.

6. The structured tissue product according to claim 2 , wherein the interior layer comprises cannabis fibers in an amount of 1% to 10%.

7. The structured tissue product according to claim 2 , wherein the second exterior layer comprises cannabis fibers in an amount of 1% to 10%.

8. The structured tissue product according to claim 2 , the first exterior layer comprises a wet end temporary wet strength additive.

9. The structured tissue product according to claim 8 , wherein wet end temporary wet strength additive comprises glyoxalated polyacrylamide.

10. The structured tissue product according to claim 2 , wherein the first exterior layer comprises a wet end dry strength additive.

11. The structured tissue product according to claim 10 , wherein the wet end dry strength additive comprises amphoteric starch.

12. The structured tissue product according to claim 2 , wherein the second exterior layer comprises a wet end dry strength additive.

13. The structured tissue product according to claim 12 , wherein the wet end dry strength additive comprises amphoteric starch.

14. The structured tissue product according to claim 2 , wherein the second wet end additive comprises an ethoxylated vegetable oil.

15. The structured tissue product according to claim 2 , wherein the second wet end additive comprises a combination of ethoxylated vegetable oils.

16. The structured tissue product according to claim 2 , wherein the ionic surfactant comprises a debonder.

17. The structured tissue product according to claim 2 , wherein the first and second exterior layers are substantially free of surface deposited softener agents or lotions.

18. The structured tissue product according to claim 2 , wherein the first exterior layer comprises a surface deposited softener agent or lotion.

19. The structured tissue product according to claim 2 , wherein the non-ionic surfactant has a hydrophilic-lipophilic balance of less than 10.

20. The structured tissue product of claim 2 , wherein the first exterior layer is comprised of 100% eucalyptus fibers.

21. The structured tissue product of claim 2 , wherein the interior layer contains 10% cannabis fibers, 30% northern bleached softwood kraft fibers and 60% eucalyptus fibers.

22. The structured tissue product of claim 2 , wherein the second exterior layer contains 10% cannabis fibers, 20% northern bleached softwood kraft fibers and 70% eucalyptus fibers.

23. The structured tissue product of claim 1 , wherein the tissue product has a basis weight in g/m 2 per 2 ply of at least 28 g/m 2 .

24. The structured tissue product of claim 1 , wherein the tissue product has a machine direction tensile strength per 2 ply of 110 N/m to 190 N/m.

25. The structured tissue product of claim 1 , wherein the tissue product has a cross machine direction tensile strength per 2 ply of 35 N/m to 90 N/m.

26. The structured tissue product of claim 1 , wherein the tissue product has a machine direction stretch of 4% to 30% per 2 ply.

27. The structured tissue product of claim 1 , wherein the tissue product has a cross direction stretch of 4% to 20% per 2 ply.

28. The structured tissue product of claim 1 , wherein the tissue product has a 2-ply cross direction wet tensile strength of 0 to 25 N/m.

29. The structured tissue product of claim 1 , wherein the tissue product has a ball burst strength of 150 gf to 300 gf per 2-ply.

30. The structured tissue product of claim 1 , wherein the tissue product has a lint value of 2.5 to 7.5 per 2 ply as measured using a Sutherland® 2000™ Rub Tester.

31. The structured tissue product of claim 1 , wherein the tissue product has a softness of 85 TSA to 100 TSA as measured using a Tissue Softness Analyzer.

32. The structured tissue product of claim 1 , wherein a web that makes up at least one of the two plies contains a glyoxylated polyacrylamide, an amphoteric starch and a debonder.

33. The structured tissue product of claim 1 , wherein the tissue product has a caliper of at least 450 microns/2 ply.

34. The structured tissue product of claim 1 , wherein the bulk softness (TS7) of the tissue product is 10 or less as measured using a Tissue Softness Analyzer.

35. A structured rolled sanitary tissue product comprising at least two plies, wherein the tissue product has a crumple resistance of 24 to 29 grams force, an average peak to valley depth of 44 to 110 microns, and a caliper of 500 microns/2 ply to 700 microns/2 ply.

36. The structured tissue product of claim 35 , wherein a web that makes up one of the at least two plies comprises a first exterior layer, an interior layer and a second exterior layer; and the interior layer contains a first wet end additive comprising an ionic surfactant and a second wet end additive comprising a non-ionic surfactant.

37. The structured tissue product according to claim 36 , wherein the first exterior layer comprises at least 50% virgin hardwood fibers.

38. The structured tissue product according to claim 37 , wherein the virgin hardwood fibers is virgin eucalyptus fibers.

39. The structured tissue product according to claim 36 , wherein the first exterior layer comprises at least 75% virgin hardwood fibers.

40. The structured tissue product according to claim 36 , wherein the interior layer comprises cannabis fibers in an amount of 1% to 10%.

41. The structured tissue product according to claim 36 , wherein the second exterior layer comprises cannabis fibers in an amount of 1% to 10%.

42. The structured tissue product according to claim 36 , the first exterior layer comprises a wet end temporary wet strength additive.

43. The structured tissue product according to claim 42 , wherein wet end temporary wet strength additive comprises glyoxalated polyacrylamide.

44. The structured tissue product according to claim 36 , wherein the first exterior layer comprises a wet end dry strength additive.

45. The structured tissue product according to claim 44 , wherein the wet end dry strength additive comprises amphoteric starch.

46. The structured tissue product according to claim 36 , wherein the second exterior layer comprises a wet end dry strength additive.

47. The structured tissue product according to claim 46 , wherein the wet end dry strength additive comprises amphoteric starch.

48. The structured tissue product according to claim 46 , wherein the second wet end additive comprises an ethoxylated vegetable oil.

49. The structured tissue product according to claim 46 , wherein the second wet end additive comprises a combination of ethoxylated vegetable oils.

50. The structured tissue product according to claim 36 , wherein the ionic surfactant comprises a debonder.

51. The structured tissue product according to claim 36 , wherein the first and second exterior layers are substantially free of surface deposited softener agents or lotions.

52. The structured tissue product according to claim 36 , wherein the first exterior layer comprises a surface deposited softener agent or lotion.

53. The structured tissue product according to claim 36 , wherein the non-ionic surfactant has a hydrophilic-lipophilic balance of less than 10.

54. The structured tissue product of claim 36 , wherein the first exterior layer is comprised of 100% eucalyptus fibers.

55. The structured tissue product of claim 36 , wherein the interior layer contains 10% cannabis fibers, 30% northern bleached softwood kraft fibers and 60% eucalyptus fibers.

56. The structured tissue product of claim 36 , wherein the second exterior layer contains 10% cannabis fibers, 20% northern bleached softwood kraft fibers and 70% eucalyptus fibers.

57. The structured tissue product of claim 35 , wherein the tissue product has a basis weight in g/m 2 per 2 ply of at least 28 g/m 2 .

58. The structured tissue product of claim 35 , wherein the tissue product has a machine direction tensile strength per 2 ply of 110 N/m to 190 N/m.

59. The structured tissue product of claim 35 , wherein the tissue product has a cross machine direction tensile strength per 2 ply of 35 N/m to 90 N/m.

60. The structured tissue product of claim 35 , wherein the tissue product has a machine direction stretch of 4% to 30% per 2 ply.

61. The structured tissue product of claim 35 , wherein the tissue product has a cross direction stretch of 4% to 20% per 2 ply.

62. The structured tissue product of claim 35 , wherein the tissue product has a 2-ply cross direction wet tensile strength of 0 to 25 N/m.

63. The structured tissue product of claim 35 , wherein the tissue product has a ball burst strength of 150 gf to 300 gf per 2-ply.

64. The structured tissue product of claim 35 , wherein the tissue product has a lint value of 2.5 to 7.5 per 2 ply as measured using a Sutherland® 2000™ Rub Tester.

65. The structured tissue product of claim 35 , wherein the tissue product has a softness of 85 TSA to 100 TSA as measured using a Tissue Softness Analyzer.

66. The structured tissue product of claim 35 , wherein a web that makes up at least one of the two plies contains a glyoxylated polyacrylamide, an amphoteric starch and a debonder.

67. The structured tissue product of claim 35 , wherein the tissue product has a caliper of at least 450 microns/2 ply.

68. The structured tissue product of claim 35 , wherein the bulk softness (TS7) of the tissue product is 10 or less as measured using a Tissue Softness Analyzer.

Assignments (1)
SECURITY INTEREST Recorded Jan 6, 2022
From: FIRST QUALITY TISSUE, LLC
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 058563/0800 →
Continuity (4)
Continuation 16353160 · Mar 14, 2019
Continuation 14951121 · Nov 24, 2015
Provisional Application 62083735 · Nov 24, 2014
Related Publication 20210095426A1 · Apr 1, 2021