Brown & Williamson Tobacco Corporation

Li-Chung Chao

Jiunn-Yann Tang

Frank Kelley St Charles

Andrew McMurtrie

John H Lauterbach

Baran B Chakraborty

Steven Houpt

Jiunn-Yang Tang

The present invention incorporates film forming additives to modify cigarette paper in such a fashion as to reduce sidestream smoke. The sidestream smoke reduction paper includes an alginate as a film forming agent used in combination with a burn additive to form a coating to reduce visible sidestream smoke as compared to a control paper without the additives. The alginates include ammonium alginate, sodium alginate, and potassium alginate. The preferred burn additives include alkali metal salts, particularly alkali metal carboxylates, which include potassium succinate, potassium citrate, potassium acetate, sodium succinate, sodium citrate, and sodium acetate, added to the cigarette paper in combination with the film forming agents. An acid may be used in combination with a burn additive to form a precoat solution applied to the cigarette wrapping paper preceding the addition of a film forming agent. Additional burn additives may be incorporated in the film forming agent after the precoat to coat the cigarette wrapping paper and further reduce the sidestream smoke. The sidestream smoke reducing paper of the present invention imparts good smoke quality without an off-taste, gives an increased puff count, and has good ash appearance.

Cigarette paper having reduced sidestream properties

A dye for coloring cigarette paper a brown color which includes caramel as the brown coloring agent, a plasticizer to prevent the paper from becoming brittle, and water. The dye can further include carmine as a red coloring agent to change the shade and hue of the brown color of the caramel. The dye can further include a burn additive to promote the burning of the dyed paper if needed.

Dye for coloring cigarette paper

A smoking article comprising a cylinder of a first fuel, and a sleeve of a second fuel concentrically surrounding and longitudinally coextensive with the cylinder. A filter plug is coaxially located at one end of the sleeve and a seal is located at the interface of the filter and sleeve. In another embodiment, a tube is coaxially located at one end of the sleeve to define a chamber, and a filter is coaxially located at one end of the tube.

Smoking article

A smoking device having a cylindrical fuel rod circumscribed by an air impermeable wrapper. The fuel rod consists of a homogeneous mixture of a non-tobacco fuel, a non-combustible tobacco, an aerosol generating material and a heat sink material.

Growing community of inventors

Louisville, KY, United States of America

Li-Chung Chao