Method to reduce forming fabric edge curl

Details Method to reduce forming fabric edge curl Method to reduce forming fabric edge curl

1987-02-14

1990-07-17

Schroeder, Werner H.

Textiles: cloth finishing

Rubbing

Abrasive

D21G 900

Patent

active

049412396

ABSTRACT:
This disclosure describes a method by which an edge curl that often develops in papermachine forming fabrics can be reduced or eliminated. The method requires the removal of mass from the sheet forming side of the forming fabric. This has the effect of reducing the ratio between the shrink forces acting on the two sides of the forming fabric in the cross-machine direction and, in turn, reduces the tendency for shrinkage to cause the edges of the fabric to curl. Papermachine operational problems associated with edge curl are thereby reduced.

REFERENCES:
patent: 2277937 (1942-03-01), Shryer
patent: 3573164 (1971-03-01), Friedberg et al.
patent: 3905863 (1975-09-01), Ayers
patent: 3974025 (1976-08-01), Ayers
patent: 4012815 (1977-03-01), Benzaquen
patent: 4191609 (1980-03-01), Trokham
patent: 4239065 (1980-12-01), Trokham
patent: 4426795 (1984-01-01), Rudt
patent: 4480362 (1984-11-01), Maxwell
patent: 4494319 (1985-01-01), Rudt

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