Paper making and fiber liberation – Processes and products – With coating after drying
Patent
1996-07-30
1998-12-15
Chin, Peter
Paper making and fiber liberation
Processes and products
With coating after drying
162146, 162158, 1621681, 162175, 162177, 1621811, 162174, D21H 2114
Patent
active
058491538
ABSTRACT:
A water-dispersible sheet and a cigarette using the sheet are disclosed. The sheet comprises a water-resolvable base paper made from fibrous raw materials and a water-dispersible coating layer containing water-soluble polymer and an alkaline compound. The sheet is also produced through an impregnation treatment for a water-resolvable base paper with a coating mixture containing water-soluble polymer and an alkaline compound, wherein said water-resolvable base paper is made from a mixture of water-dispersible fibers and fibrous carboxymethyl cellulose acid or fibrous carboxyethyl cellulose acid. The gas-permeability of the water-dispersible sheet is controlled by the water-dispersible coating layer or the impregnation treatment.
REFERENCES:
patent: 2775970 (1957-01-01), Schoenbaum
patent: 5722433 (1998-03-01), Ishino et al.
Ishino Yoshiaki
Minamisawa Susumu
Shishikura Masato
Tsujimoto Toru
Chin Peter
Japan Tobaco Inc.
Mishima Paper Co., Ltd.
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