Process for manufacturing of formed products

Details Process for manufacturing of formed products Process for manufacturing of formed products

1981-03-20

1983-03-22

Chin, Peter

Paper making and fiber liberation

Processes and products

Pore forming in situ

162145, 162146, 162147, 162158, 1621681, 162174, 162177, 162178, 162218, 264165, 264175, 264176R, 264204, D21D 300

Patent

active

043774407

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.

REFERENCES:
patent: 570361 (1896-10-01), Archbold
patent: 1821856 (1931-09-01), Spafford
patent: 2109532 (1938-03-01), Hill
patent: 3219467 (1965-11-01), Redican et al.
patent: 3575749 (1971-04-01), Kroyer
patent: 3895997 (1975-07-01), Haywood
Translation of French Pat. 1290378, Mar. 5, 1962.
Pulp and Paper, Casey, vol. II, pp. 946, 966, 967, 969, 985 and 986, 1980.

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