Paper making and fiber liberation – Processes and products – Non-uniform – irregular or configured web or sheet
Reexamination Certificate
2009-10-13
2010-06-08
Fortuna, José A (Department: 1791)
Paper making and fiber liberation
Processes and products
Non-uniform, irregular or configured web or sheet
C162S142000, C162S147000, C162S149000
Reexamination Certificate
active
07731819
ABSTRACT:
An absorbent sheet of cellulosic fiber typically includes at least about 15% by weight of high coarseness, generally tubular and lignin-rich cellulosic fiber based on the combined weight of cellulosic fiber in the sheet. Lignin-rich high coarseness, generally tubular fiber employed may be characterized by a coarseness of at least about 20 mg/100 m and an average length of 2 mm. The sheet is prepared by way of a process including applying a dewatered web to a heated rotating cylinder and creping the web from the heated cylinder with an undulatory creping blade. Preferred lignin-rich, high coarseness, generally tubular fibers include thermo and chemi mechanical pulps. A particularly preferred embodiment is a sheet including at least about 15% BCTMP.
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Awofeso Anthony O.
Chou Henry
Janda Bruce W.
Reeb Ronald R.
Yeh Kang C.
Ferrell Michael W.
Fortuna José A
Georgia - Pacific Consumer Products LP
LandOfFree
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