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US 5,326,522 AGranted
Treatment for texturing paper
OwnerRon Leeinventor
Life of this patent
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Abstract
A method of forming a textured surface in a sheet of photographic paper by washing the paper for a predetermined period of time, repeatedly cockling the sheet to form a plurality of randomly placed ridges and valleys in the paper, drying the paper, and compressing the paper in a press.
Claims7
A method of forming a textured sheet of fibrous material, comprising:
- providing a substantially planar sheet of fibrous material;
- washing said sheet in an aqueous solution for a predetermined period of time;
- crumpling the sheet loosely into a substantially spherical ball;
- uncrumpling the ball to return the sheet to a substantially planar sheet;
- repeating the crumpling and uncrumpling steps a predetermined number of times to form a plurality of ridges and valleys in the sheet;
- drying the sheet;
- and
- compressing the sheet in a press, whereby the height of the ridges and the depth of the valleys in the sheet are reduced to provide a textured surface in the sheet.
5 more elements
Dependencies are inferred from the claim text.