Dandy roll with a grid of diamond shapes

Details Dandy roll with a grid of diamond shapes Dandy roll with a grid of diamond shapes

1997-07-22

1999-08-03

Chin, Peter

Paper making and fiber liberation

Apparatus

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

492 32, 162308, D21F 146

Patent

active

059320710

ABSTRACT:
Paper bearing a unique watermark having a grid pattern of translucent lines and repeating translucent diamond shapes at alternating intersections of the lines produced using a dandy roll in which the outer grid comprises a rectangular grid pattern where alternate intersections are provided with substantially diamond shapes.

REFERENCES:
patent: 353666 (1886-12-01), Crane, Jr.
patent: 1571715 (1925-11-01), Fearing
patent: 1616222 (1927-02-01), Harrrigan
patent: 2998846 (1961-09-01), Hornbostel
patent: 4462867 (1984-07-01), Fuller
patent: 4526652 (1985-07-01), Waters
patent: 5100512 (1992-03-01), Waters

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