Soft and strong webs from highly refined cellulosic fibres

Details Soft and strong webs from highly refined cellulosic fibres Soft and strong webs from highly refined cellulosic fibres

2007-08-21

2007-08-21

Griffin, Steven P. (Department: 1731)

Paper making and fiber liberation

Processes and products

Non-fiber additive

C162S141000, C162S164300, C162S164600, C162S168300, C162S165000

Reexamination Certificate

active

10736541

ABSTRACT:
Soft and strong cellulose-based fibrous web, comprisesa) cellulosic fibres having a freeness value of more than 26° SR measured according to DIN-ISO 5267/1 (March 1999),b) a water-soluble cationic polymer,c) a water-soluble anionic polymer, andd) a cationic surfactant-based softener.The webs are prepared byrefining cellulosic fibres to a degree of freeness of more than 26° SR measured according to DIN-ISO 5267/1,adding at least one water-soluble anionic polymer and water-soluble cationic polymer to the refined cellulosic fibres,adding a cationic surfactant-based softener to the cellulosic fibres obtained thereby, andwet-laying and dewatering the celulosic fibres obtained thereby.

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