Wet press felt to be used in papermaking machine

Details Wet press felt to be used in papermaking machine Wet press felt to be used in papermaking machine

1989-05-25

1993-01-26

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

139383A, 428131, 428137, 428234, 428238, 428246, 428280, 428282, 428284, 428298, 428300, 4283044, 428913, B32B 502

Patent

active

051821648

ABSTRACT:
A dewatering wet press felt to be used on papermaking machines and comprising at least one top layer made from staple fibers and the like and facing the paper web (4), and a second layer. The second layer constitutes a barrier layer of such a nature that during the compression phase in the press nip in the press section of the papermaking machine the water is forced through the second layer, but is prevented from flowing back to the top layer and the paper web during the expansion phase after the press nip.

REFERENCES:
patent: 4446187 (1984-05-01), Eklund
patent: 4701368 (1987-10-01), Kiuchi et al.
patent: 4830905 (1989-05-01), Gulya et al.
patent: 4851281 (1989-07-01), Wood
patent: 4988409 (1991-01-01), Nyberg

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