IP Library Granted Patent US 10,844,548
Granted Patent B2
US 10,844,548 · App. 16/378,790 · Granted Nov 24, 2020

Soft, low lint, through air dried tissue and method of forming the same

Inventors: James E. Sealey, II (Belton, SC); Byrd Tyler Miller, IV (Easley, SC)
Assignee: First Quality Tissue, LLC
D21H27/005B32B7/12B32B29/002D21F5/181D21F11/145D21F13/00D21H11/04D21H17/02D21H17/28D21H17/37D21H17/375D21H21/14D21H21/18D21H21/20D21H21/24D21H27/002D21H27/30D21H27/32D21H27/38D21H27/40B32B2250/03B32B2250/26B32B2262/02B32B2262/062B32B2262/067B32B2307/54B32B2307/546B32B2307/718B32B2309/105B32B2555/02
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Quick Facts
Patent No.
US 10,844,548
App. No.
16/378,790
Granted
Nov 24, 2020
Kind
B2
Abstract

A multi-ply through air dried structured tissue having a bulk softness of less than 10 TS7 and a lint value of 5.0 or less. Each ply of the tissue has a first exterior layer that includes a wet end temporary wet strength additive in an amount of approximately 0.25 kg/ton and a wet end dry strength additive in an amount of approximately 0.25 kg/ton, an interior layer that includes a first wet end additive comprising an ionic surfactant, and a second wet end additive comprising a non-ionic surfactant, and a second exterior layer.

Claims (32)

1. A tissue comprising:

a laminate of at least two plies of a multi-layer through air dried tissue, each ply comprising a first exterior layer, an interior layer and a second exterior layer, the tissue having a bulk softness of less than 10 TS7 and a lint value of 5.0 or less, wherein the first and second exterior layers are substantially free of any surface-deposited softener agents or lotions.

2. The tissue of claim 1 , wherein the first exterior layer comprises a wet end dry strength additive.

3. The tissue of claim 1 , wherein the interior layer is comprised of at least 75% by weight of softwood fibers.

4. The tissue of claim 1 , wherein the second exterior layer further comprises a wet end dry strength additive.

5. The tissue of claim 1 , wherein the second exterior layer further comprises a temporary wet strength additive.

6. The tissue of claim 1 , wherein the second exterior layer further comprises a dry strength additive.

7. The tissue of claim 1 , wherein the first exterior layer further comprises a dry strength additive.

8. The tissue of claim 1 , having an MD tensile strength and a CD tensile strength of at least 35 N/m and having a basis weight of less than 40 gsm.

9. The tissue of claim 1 , having an MD tensile strength and a CD tensile strength of at least 35 N/m and a caliper of less than 650 microns.

10. The tissue of claim 1 , wherein at least one of the first or second exterior layers comprises a surface-deposited softener agent or lotion.

11. The tissue of claim 1 , wherein the tissue further comprises a non-ionic surfactant having a hydrophilic-lipophilic balance of less than 10.

12. The tissue of claim 1 , wherein each of the at least two plies comprises an embossed area, wherein the embossed area occupies between approximately 3 to 15% of the total surface area of a surface of the ply.

13. The tissue of claim 1 , wherein the tissue is one of a sanitary, bath or facial tissue.

14. The tissue of claim 1 , wherein the tissue has a caliper of at least 500 microns.

15. The tissue of claim 1 , wherein the tissue has a caliper of 500 microns to 650 microns.

16. A roll bath tissue comprising: a laminate of at least two plies of a multi-layer through air dried tissue, each ply comprising a first exterior layer, an interior layer and a second exterior layer, the roll bath tissue having a bulk softness of less than 10 TS7, a lint value of 5.0 or less, an Average Peak to Valley Waviness of 140 microns or less, and a waviness uniformity of 27 microns or less, wherein the first and second exterior layers are substantially free of any surface-deposited softener agents or lotions.

17. The roll bath tissue of claim 16 , wherein the first exterior layer comprises a wet end dry strength additive.

18. The roll bath tissue of claim 16 , wherein the interior layer is comprised of at least 75% by weight of softwood fibers.

19. The roll bath tissue of claim 16 , wherein the second exterior layer further comprises a wet end dry strength additive.

20. The roll bath tissue of claim 16 , wherein the second exterior layer further comprises a temporary wet strength additive.

21. The roll bath tissue of claim 16 , wherein the second exterior layer further comprises a dry strength additive.

22. The roll bath tissue of claim 16 , wherein the first exterior layer further comprises a dry strength additive.

23. The roll bath tissue of claim 16 , having an MD tensile strength and a CD tensile strength of at least 35 N/m and having a basis weight of less than 40 gsm.

24. The roll bath tissue of claim 16 , having an MD tensile strength and a CD tensile strength of at least 35 N/m and a caliper of less than 650 microns.

25. The roll bath tissue of claim 16 , wherein at least one of the first or second exterior layers comprises a surface-deposited softener agent or lotion.

26. The roll bath tissue of claim 16 , wherein the tissue further comprises a non-ionic surfactant having a hydrophilic-lipophilic balance of less than 10.

27. The roll bath tissue of claim 16 , wherein each of the at least two plies comprises an embossed area, wherein the embossed area occupies between approximately 3 to 15% of the total surface area of a surface of the ply.

28. The tissue of claim 16 , wherein the tissue has a caliper of at least 500 microns.

29. The tissue of claim 16 , wherein the tissue has a caliper of 500 microns to 650 microns.

30. The tissue of claim 16 , wherein the tissue has an Average Primary Amplitude of 50 microns or less and an Amplitude Uniformity of 8 microns or less.

31. A roll bath tissue comprising: a laminate of at least two plies of a multi-layer through air dried tissue, each ply comprising a first exterior layer, an interior layer and a second exterior layer, the roll bath tissue having a bulk softness of less than 10 TS7, a lint value of 5.0 or less, an Average Primary Amplitude of 50 microns or less and an Amplitude Uniformity of 8 microns or less, wherein the first and second exterior layers are substantially free of any surface-deposited softener agents or lotions.

Assignments (2)
SECURITY INTEREST Recorded Jan 6, 2022
From: FIRST QUALITY TISSUE, LLC
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 058563/0800 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 9, 2020
From: SEALEY, JAMES E., II; MILLER, BYRD TYLER, IV
To: FIRST QUALITY TISSUE, LLC
Reel/Frame 054015/0067 →
Continuity (3)
Continuation 15499457 · Apr 27, 2017
Provisional Application 62328350 · Apr 27, 2016
Related Publication 20190234021A1 · Aug 1, 2019