Process for manufacturing of formed products
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United States of America Patent
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-
Mar 22, 1983
Issued Date -
N/A
app pub date -
Mar 20, 1981
filing date -
May 25, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of making a cellulosic paper or paperboard by agitating an aqueous suspension of cellulose fibers until they become separated from each other and swollen. A sufficient amount of hydrocolloid is added to bind the water in the suspension such that no water will bleed out during a subsequent shaping. The mixture is kneaded until a homogeneous, plastically deformable mixture is formed. The mixture contains about 50-90% water, fibers in excess of about 8% and hydrocolloid in excess of about 1% by weight. The mixture is shaped by extrusion, rolling, pressing or drawing.
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