Water-dispersible sheet for cigarettes and cigarette using the same

A water-dispersible sheet for cigarettes, which comprises

• (1) a water-resolvable base paper made from fibrous raw materials containing not less than 20% by weight of water-dispersible fibers having fiber dimensions of a l/D value of 0.45 or lower and a L/D value of 60 or lower and a water-retention value of 95% or lower, wherein water-insoluble or water-slightly-soluble powder is mixed with said fibrous raw materials, and
• (2) a water-dispersible coating layer containing water-soluble polymer formed on the surface of at least one side of said base paper, whereby
• said sheet is adjusted to have an air-permeability of not more than 200 coresta measured with a paper permeability meter, or to have an air-resistance within the range of 0 to 50000 second/100 ml measured with an Oken type air-resistance tester.

A water-dispersible sheet for cigarettes, which comprises

• (1) a water-resolvable base paper made through an alkali impregnation treatment for a paper web formed from fibrous raw materials containing not less than 20% by weight of water-dispersible fibers having fiber dimensions of a l/D value of 0.45 or lower and a L/D value of 60 or lower and a water-retention value of 95% or lower, and
• (2) a water-dispersible coating layer containing water-soluble polymer formed on the surface of at least one side of said base paper, whereby
• said sheet is adjusted to have an air-permeability of not more than 200 coresta measured with a paper permeability meter, or to have an air-resistance within the range of 0 to 50000 second/100 ml measured with an Oken type air-resistance tester.

A water-dispersible sheet for cigarettes, which comprises

• (1) a water-resolvable base paper made through an alkali impregnation treatment for a paper web formed from fibrous raw materials containing not less than 20% by weight of water-dispersible fibers having fiber dimensions of a l/D value of 0.45 or lower and a L/D value of 60 or lower and a water-retention value of 95% or lower, wherein water-insoluble or water-slightly-soluble powder is mixing with said fibrous raw materials, and
• (2) a water-dispersible coating layer containing water-soluble polymer formed on the surface of at least one side of said base paper, whereby
• said sheet is adjusted to have an air-permeability of not more than 200 coresta measured with a paper permeability meter, or to have an air-resistance within the range of 0 to 50000 second/100 ml measured with an Oken type air-resistance tester.

A water-dispersible sheet for cigarettes, which comprises

• (1) a water-resolvable base paper made from fibrous raw materials containing not less than 20% by weight of water-dispersible fibers having fiber dimensions of a l/D value of 0.45 or lower and a L/D value of 60 or lower and a water-retention value of 95% or lower, wherein salt of fibrous carboxymethyl cellulose or salt of fibrous carboxyethyl cellulose is mixed with said fibrous raw materials, and
• (2) a water-dispersible coating layer containing water-soluble polymer formed on the surface of at least one side of said base paper, whereby
• said sheet is adjusted to have an air-permeability of not more than 200 coresta measured with a paper permeability meter, or to have an air-resistance within the range of 0 to 50000 second/100 ml measured with an Oken type air-resistance tester.

A water-dispersible sheet for cigarettes, which comprises

• (1) a water-resolvable base paper made from fibrous raw materials containing not less than 20% by weight of water-dispersible fibers having fiber dimensions of a l/D value of 0.45 or lower and a L/D value of 60 or lower and a water-retention value of 95% or lower, wherein salt of fibrous carboxymethyl cellulose or salt of fibrous carboxyethyl cellulose and water-insoluble or water-slightly-soluble powder are mixed with said fibrous raw materials, and
• (2) a water-dispersible coating layer containing water-soluble polymer formed on the surface of at least one side of said base paper, whereby
• said sheet is adjusted to have an air-permeability of not more than 200 coresta measured with a paper permeability meter, or to have an air-resistance within the range of 0 to 50000 second/100 ml measured with an Oken type air-resistance tester.

A water-dispersible sheet for cigarettes, which comprises

• (1) a water-resolvable base paper made through an alkali impregnation treatment for a paper web formed from fibrous raw materials containing water-dispersible fibers and fibrous carboxymethyl cellulose acid or fibrous carboxyethyl cellulose acid, and
• (2) a water-dispersible coating layer containing water-soluble polymer formed on the surface of at least one side of said base paper, whereby
• said sheet is adjusted to have an air-permeability of not more than 200 coresta measured with a paper permeability meter, or to have an air-resistance within the range of 0 to 50000 second/100 ml measured with an Oken type air-resistance tester.

A water-dispersible sheet for cigarettes, which comprises

• (1) a water-resolvable base paper made through an alkali impregnation treatment for a paper web formed from fibrous raw materials containing water-dispersible fibers and fibrous carboxymethyl cellulose acid or fibrous carboxyethyl cellulose acid, wherein water-insoluble or water-slightly-soluble powder are mixed with said fibrous raw materials, and
• (2) a water-dispersible coating layer containing water-soluble polymer formed on the surface of at least one side of said base paper, whereby
• said sheet is adjusted to have an air-permeability of not more than 200 coresta measured with a paper permeability meter, or to have an air-resistance within the range of 0 to 50000 second/100 ml measured with an Oken type air-resistance tester.