Densified fibrous structures and methods for making same

Details Densified fibrous structures and methods for making same Densified fibrous structures and methods for making same

2011-05-17

2011-05-17

Stephens, Jacqueline F (Department: 3761)

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C604S375000, C604S378000, C604S379000, C604S380000, C604S367000, C162S112000, C162S113000, C162S072000, C162S084000

Reexamination Certificate

active

07943814

ABSTRACT:
Differentially densified fibrous structures, methods for making same, and processes for treating fibers used in the fibrous structures are provided. More particularly, fibrous structures comprising two or more regions, at least one of which exhibits a density that is at least 1.6 times greater than another region within the fibrous structure, methods for making such fibrous structures and non-naturally occurring fibers useful in such fibrous structures are provided.

REFERENCES:
patent: 5770012 (1998-06-01), Cooper, III
U.S. Appl. No. 11/242,253, filed Oct. 3, 2005, Ampulski.

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