Paper making and fiber liberation – Processes and products – Non-fiber additive
Patent
1997-03-24
1999-08-17
Chin, Peter
Paper making and fiber liberation
Processes and products
Non-fiber additive
1621811, 1621817, D21H 2122, D21H 1768
Patent
active
059388943
ABSTRACT:
A method in which a sheet of cellulosic fibres is shredded into fluff wherein, prior to shredding, the fibres are treated in the presence of water with a hydrophobic substance having a specific surface area of at least about 50 m.sup.2 /g, to yield improved sorptive capacity; fluff obtainable by the method; absorbent articles comprising such fluff; use of a substance of said kind for improving the sorptive capacity of absorbent material comprising the fibers; a process for production of absorbent material obtained by shredding a sheet of such fibers in which the fibers, prior to shredding, have been treated in the presence of water with a substance of said kind to yield improved sorptive capacity; and absorbent material obtainable from the process.
REFERENCES:
patent: 4289513 (1981-09-01), Brownhill et al.
patent: 4826497 (1989-05-01), Marcus et al.
patent: 4900377 (1990-02-01), Redford et al.
patent: 5611890 (1997-03-01), Vinson et al.
PCT International Search Report, Jul. 8, 1997.
Lindgren Erik
Malmborg Kerstin
Thebrin Ingemar
W.ang.hlen Svante
Chin Peter
Eka Chemicals AB
Leavitt Steven B.
Mancini Ralph J.
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