Paper making and fiber liberation – Processes and products – Non-uniform – irregular or configured web or sheet
Patent
1999-05-25
2000-11-07
Silverman, Stanley S.
Paper making and fiber liberation
Processes and products
Non-uniform, irregular or configured web or sheet
162117, 162123, 162158, 162179, 162165, 1621641, 1621682, 428172, 428153, D21H 1714, D21H 1707, D21H 2700
Patent
active
061431311
ABSTRACT:
The present invention relates to a soft, thick, single-ply tissue and to a process for the manufacture of such tissue product having a basis weight of at least about 15 lbs./3,000 square foot ream and having low sidedness, said tissue exhibiting:
a specific total tensile strength of between 40 and 75 grams per 3 inches per pound per 3000 square feet ream, a cross direction specific wet tensile strength of between 2.75 and 7.5 grams per 3 inches per pound per 3000 square feet ream, the ratio of MD tensile to CD tensile of between 1.25 and 2.75, a specific geometric mean tensile stiffness of between 0.5 and 1.2 grams per inch per percent strain per pound per 3000 square feet ream, a friction deviation of less than 0.225, and a sidedness parameter of less than 0.275.
REFERENCES:
patent: 3755220 (1973-08-01), Freimark et al.
patent: 5695607 (1997-12-01), Oriaran et al.
patent: 5851629 (1998-12-01), Oriaran et al.
patent: 5882479 (1999-03-01), Oriaran et al.
Awofeso Anthony O.
Bhat Dinesh M.
Dwiggins John H.
Harper Frank D.
Oriaran T. Philips
Fort James Corporation
Fortuna Jos'e A.
Silverman Stanley S.
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