Paper making and fiber liberation – Processes and products – Plural fiber containing
Patent
1988-07-26
1990-11-27
Chin, Peter
Paper making and fiber liberation
Processes and products
Plural fiber containing
1621681, 162184, 162186, 210504, 210506, 210508, D21H 1312
Patent
active
049733826
ABSTRACT:
A nonwoven filtration fabric is composed of a plurality of fiber components of dissimilar denier and length which are evenly intermingled and bonded together in a sheet, including a first fiber component of staple polyester fibers of high denier and a textile length, a second fiber component of staple polyester fibers of low denier and shorter length than the first fiber component, a third fiber component of wood pulp fibers of shorter length than the first fiber components, and a suitable binder. The fabric is formed by a wet laid process in which the dissimilar fiber components are evenly mixed and distributed in a homogeneous slurry. A filter media made of the fabric has a high tensile strength, even pore size and distribution, low pressure drop, and is suitable for macrofiltration applications, such as filtering milk.
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B. P. Thomas and R. Kebea, "Filtration Properties of Wet-laid polyester nonwovens," Nov. 1988, TAPPI Journal.
"Wet Laid Nonwoven Fabrics for Filtration Applications," Oct. 1988, Nonwovens Industry.
Kinn Larry L.
Lerner Peter
Perry Bruce A.
Chin Peter
Clark Francis J.
International Paper Company
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