Paper making and fiber liberation – Processes and products – Multi-layer waterlaid webs or sheets
Reexamination Certificate
2008-05-27
2008-05-27
Fortuna, José A (Department: 1791)
Paper making and fiber liberation
Processes and products
Multi-layer waterlaid webs or sheets
C162S127000, C162S128000, C162S109000, C162S179000, C428S172000
Reexamination Certificate
active
10845278
ABSTRACT:
Single-ply throughdried tissue sheets, particularly suitable as bath tissue, are produced with at least three layers. One or both of the outer layers suitably contain predominantly softwood fibers and a chemical bonding agent. One or more of the inner layers suitably contains a chemical debonder. The resulting tissues have a high level of durability and softness.
REFERENCES:
patent: 3903342 (1975-09-01), Robets, Jr.
patent: 4100017 (1978-07-01), Flautt
patent: 4166001 (1979-08-01), Dunning et al.
patent: 4482429 (1984-11-01), Klowak
patent: 4507351 (1985-03-01), Johnson et al.
patent: 4959125 (1990-09-01), Spendel
patent: 5200037 (1993-04-01), Noda
patent: 5277761 (1994-01-01), Van Phan et al.
patent: 5366785 (1994-11-01), Sawdai
patent: 5405501 (1995-04-01), Phan et al.
patent: 5443691 (1995-08-01), Phan et al.
patent: 5556509 (1996-09-01), Trokhan et al.
patent: 5573637 (1996-11-01), Ampulski et al.
patent: 5593545 (1997-01-01), Rugowski et al.
patent: 5607551 (1997-03-01), Farrington et al.
patent: 5637194 (1997-06-01), Ampulski et al.
patent: 5667635 (1997-09-01), Win et al.
patent: 5672248 (1997-09-01), Wendt et al.
patent: 5714041 (1998-02-01), Ayers et al.
patent: 5885418 (1999-03-01), Anderson et al.
patent: 5981044 (1999-11-01), Phan et al.
patent: 6129815 (2000-10-01), Larson et al.
patent: 6248212 (2001-06-01), Anderson et al.
patent: 6328850 (2001-12-01), Phan et al.
patent: 6368454 (2002-04-01), Dwiggins et al.
patent: 6464829 (2002-10-01), Chen et al.
patent: 6478927 (2002-11-01), Chen et al.
patent: 6500289 (2002-12-01), Merker et al.
patent: 6673203 (2004-01-01), Neal et al.
patent: 6846383 (2005-01-01), Tirimacco
patent: 6861380 (2005-03-01), Garnier et al.
patent: 6918993 (2005-07-01), Tirimacco
patent: 7056572 (2006-06-01), Smith et al.
patent: 2003/0056917 (2003-03-01), Jimenez
patent: 2003/0127203 (2003-07-01), Hu
patent: 2004/0007339 (2004-01-01), Tirimacco
patent: 2004/0112558 (2004-06-01), Garnier et al.
patent: 2004/0118544 (2004-06-01), Tirimacco et al.
patent: 2004/0163785 (2004-08-01), Shannon et al.
patent: 2005/0034826 (2005-02-01), Hu
patent: 2005/0045293 (2005-03-01), Hermans et al.
patent: 2005/0252626 (2005-11-01), Chen et al.
patent: 2 304 123 (1997-03-01), None
patent: WO 2004/050374 (2004-06-01), None
Andersson, Ingmar, “A Multi-Layering Headbox,” Proceedings of the Second International Air Laid and Advanced Forming Conference, Nov. 16-18, 1980, Section X, pp. 1-20.
Ewald, James, “Forming Structured Products For Tissue, Towel & Other Paper Grades,” Proceedings of the Second International Air Laid and Advanced Forming Conference, Nov. 16-18, 1980, Section XI, pp. 1-11.
TAPPI Official Test Method T 411 om-89, “Thickness (Caliper) of Paper, Paperboard, and Combined Board,” published by the TAPPI Press, Atlanta, Georgia, revised 1989, pp. 1-3.
TAPPI Official Test Method T 570 pm-00, “Resistance to Mechanical Penetration of Sanitary Tissue Papers(ball burst procedure),” published by the TAPPI Press, Atlanta, Georgia, revised 2000, pp. 1-7.
Chen Patrick Pachih
Hermans Michael Alan
Pawar Pau-Lin
Shannon Thomas Gerard
Croft Gregory E.
Fortuna José A
Kimberly--Clark Worldwide, Inc.
LandOfFree
Soft durable tissue does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Soft durable tissue, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Soft durable tissue will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3944832