Perforated and embossed sheet forming fabric

Details Perforated and embossed sheet forming fabric Perforated and embossed sheet forming fabric

1998-03-12

1998-11-17

Hastings, Karen M.

Paper making and fiber liberation

Apparatus

Running or indefinite length product forming and/or treating...

162348, 162903, D21F 110

Patent

active

058371028

ABSTRACT:
A paper-making machine for forming a paper web from a fiber suspension includes rotatable rolls, an endless forming fabric, and a headbox configured to receive and discharge the fiber suspension. The endless forming fabric is carried by the rolls and is configured to directly carry the fiber suspension discharged by the headbox. The forming fabric includes a monolithic plastic sheet with water drainage holes therein. The sheet has an embossed outer surface with generally rounded projections and generally rounded depressions. Each of the projections has a height of at least 125 microns. The embossed outer surface is configured for contacting the fiber suspension. The embossed outer surface of the sheet is formed using a calender having at least one embossing roll.

REFERENCES:
patent: 1925917 (1933-09-01), Chalon
patent: 3121660 (1964-02-01), Hall, Jr.
patent: 3399111 (1968-08-01), Beaumont et al.
patent: 4162190 (1979-07-01), Ashworth
patent: 4541895 (1985-09-01), Albert
patent: 4931010 (1990-06-01), Barnewall
patent: 5298124 (1994-03-01), Eklund et al.

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