Crossed-linked pulp and method of making same

Details Crossed-linked pulp and method of making same Crossed-linked pulp and method of making same

2006-03-28

2006-03-28

Hug, Eric (Department: 1731)

Paper making and fiber liberation

Processes and products

Synthetic fiber

C162S157600, C162S168100, C162S182000, C162S184000, C008S116100, C008S493000

Reexamination Certificate

active

07018511

ABSTRACT:
The invention provides a method for preparing cross-linked cellulosic fibers. A sheet of mercerized cellulosic fibers with a purity of at least 95% is treated with a solution containing a carboxylic acid cross-linking agent. The treated cellulosic fibrous material is dried and cured in sheet form to promote intrafiber cross-linking. Cross-linked fiber products produced are economic and possess good porosity, bulking characteristics, wet resiliency, absorption characteristics, low fines, low nits and low knots. The invention also includes blended cellulose compositions comprising a minor proportion of cross-linked mercerized cellulosic fibers and a major proportion of other cellulosic fibers. The invention further provides individualized, chemically cross-linked mercerized cellulosic fibers of high purity.

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