Water-dispersible sheet and cigarette using the same
First Claim
1. A water-dispersible sheet, comprising:
- (1) a water-resolvable base paper made from fibrous raw materials containing water-dispersible fibers selected from wood pulp fibers and non-wood plant fibers, wherein said water dispersible fibers have fiber dimensions of a l/D value of 0.50 or lower and a L/D value of 60 or lower and a water retention value of 95% or lower at a time before heating, and(2) a water-dispersible coating layer formed on the surface of at least one side of said base paper, which comprises;
water-soluble polymer which is a polymer that turns to a film by drying to reduce the air-permeability of the sheet, which is selected from the group consisting of starch, starch derivatives, cellulose derivatives, polysaccharides, synthetic polymers, plant mucilage, microbial mucilage and protein, andan alkaline compound which is selected from the group consisting of hydroxides of alkali metals, carbonates and hydrogen carbonates of alkali metals, phosphates and hydrogenphosphates of alkali metals, hydroxides of alkaline earth metals and amines,wherein a blend ratio of the water soluble polymer to the alkaline compound in a coating mixture is from 100;
1 to 100;
10,000 and wherein a coating amount of the water-soluble polymer is from 0.01 to 10 gm2.
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Accused Products
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.
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Citations
9 Claims
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1. A water-dispersible sheet, comprising:
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(1) a water-resolvable base paper made from fibrous raw materials containing water-dispersible fibers selected from wood pulp fibers and non-wood plant fibers, wherein said water dispersible fibers have fiber dimensions of a l/D value of 0.50 or lower and a L/D value of 60 or lower and a water retention value of 95% or lower at a time before heating, and (2) a water-dispersible coating layer formed on the surface of at least one side of said base paper, which comprises; water-soluble polymer which is a polymer that turns to a film by drying to reduce the air-permeability of the sheet, which is selected from the group consisting of starch, starch derivatives, cellulose derivatives, polysaccharides, synthetic polymers, plant mucilage, microbial mucilage and protein, and an alkaline compound which is selected from the group consisting of hydroxides of alkali metals, carbonates and hydrogen carbonates of alkali metals, phosphates and hydrogenphosphates of alkali metals, hydroxides of alkaline earth metals and amines, wherein a blend ratio of the water soluble polymer to the alkaline compound in a coating mixture is from 100;
1 to 100;
10,000 and wherein a coating amount of the water-soluble polymer is from 0.01 to 10 gm2. - View Dependent Claims (2, 3, 4, 5, 6, 9)
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7. A water-dispersible sheet, comprising:
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a sheet produced through an impregnation treatment for a water-resolvable base paper with a coating mixture comprising; a water-soluble polymer which is a polymer that turns to a film by drying to reduce the air-permeability of the sheet selected from the group consisting of starch, starch derivatives, cellulose derivatives, polysaccharides, synthetic polymers, plant mucilage, microbial mucilage and protein, and an alkaline compound selected from the group consisting of hydroxides of alkali metals, carbonates and hydrogen carbonates of alkali metals, phosphates and hydrogenphosphates of alkali metals, hydroxides of alkaline earth metals and amines, 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, wherein the blend percentage of the fibrous carboxymethyl cellulose acid or fibrous carboxyethyl cellulose acid is from 1% to 50% weight of the whole amount of the fibrous raw materials, and the blend percentage of the water-dispersible fibers is from 30 to 99% weight of the whole amount of the fibrous raw materials for making base paper, and wherein a blend ratio of the water-soluble polymer to the alkaline compound is from 10;
100 to 1000;
100, and wherein a coating amount of the water soluble polymer is from 0.01 to 10 g/m2. - View Dependent Claims (8)
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Specification