The disclosure relates to a cooling filter and a smoking article including the same, and more particularly, to a cooling filter having a tubular shape with a hollow formed inside, and a main body portion, in which a coating layer is formed on a surface of the hollow, and the coating layer includes alkaline metal chloride, and a smoking article including the same. By using the filter, a smoking article with an effective cooling function and improved tobacco taste and long-lasting smoke flavor may be provided.

A vaporizer device of cotton-free e-cigarette, comprising: an outer sleeve, a supporting frame arranged inside the outer sleeve, a vaporizer unit fixed into the supporting frame, a filter piece and a liquid percolation piece sequentially connected to one end of the supporting frame, and a fixation seat connected to other end of the supporting frame. A backflow groove is made inside the supporting frame to prevent leakage caused by the backflow of residual liquid. The filter piece is made of heat-resisting material. The liquid percolation piece is connected at one end with a liquid storage cup by snap joints. Another end of the filter piece keeps a safe distance away from the vaporizer unit to avoid being burned. The liquid storage cup and the outer sleeve are assembled to form a slit therebetween to prevent the backflow of residual liquid.

A vaporizer device of cotton-free e-cigarette, comprising: an outer sleeve, a supporting frame arranged inside the outer sleeve, a vaporizer unit fixed into the supporting frame, a filter piece and a liquid percolation piece sequentially connected to one end of the supporting frame, and a fixation seat connected to other end of the supporting frame. A backflow groove is made inside the supporting frame to prevent leakage caused by the backflow of residual liquid. The filter piece is made of heat-resisting material. The liquid percolation piece is connected at one end with a liquid storage cup by snap joints. Another end of the filter piece keeps a safe distance away from the vaporizer unit to avoid being burned. The liquid storage cup and the outer sleeve are assembled to form a slit therebetween to prevent the backflow of residual liquid.

The present invention relates to improvements in filters, for use in smoking articles, comprising randomly oriented discrete fibres, wherein a loss of particulate additives can be reduced by adding a liquid with a viscosity of at least 2000 m Pa*s at 20 C. and normal pressure.

A porous carbon material suitable for incorporation in smoke filters for cigarettes has a BET surface area of at least 800 m.sup.2/g and a pore structure that includes mesopores and micropores. The pore volume (as measured by nitrogen adsorption) is at least 0.9 cm.sup.3/g and from 15 to 65% of the pore volume is in mesopores. The pore structure of the material provides a bulk density generally less than 0.5 g/cc. The material may be produced by carbonizing and activating organic resins and may be in the form of beads for ease of handling.

Objects of the present invention are to provide a mayenite compound which can induce electron donation reaction, H.sup. donation reaction, deoxygenation reaction, and dehydration reaction; a multifunctional agent which contains the mayenite compound which is not dissolved in a solvent, and which can induce electron donation reaction, H.sup. donation reaction, deoxygenation reaction, and dehydration reaction; and a method for producing a mayenite-compound-containing product. The invention provides a mayenite compound characterized by comprising enclosing electron and H.sup., a multifunctional agent characterized in that the agent contains at least one of the mayenite compound I and a mixture II of the mayenite compound enclosing electron and the mayenite compound enclosing H.sup., and exhibits radical scavenging activity, reducing property, deoxygenation performance, and dehydration performance; and a method for producing a mayenite-compound-containing product containing the aforementioned mayenite compound.

Objects of the present invention are to provide a mayenite compound which can induce electron donation reaction, H.sup. donation reaction, deoxygenation reaction, and dehydration reaction; a multifunctional agent which contains the mayenite compound which is not dissolved in a solvent, and which can induce electron donation reaction, H.sup. donation reaction, deoxygenation reaction, and dehydration reaction; and a method for producing a mayenite-compound-containing product. The invention provides a mayenite compound characterized by comprising enclosing electron and H.sup., a multifunctional agent characterized in that the agent contains at least one of the mayenite compound I and a mixture II of the mayenite compound enclosing electron and the mayenite compound enclosing H.sup., and exhibits radical scavenging activity, reducing property, deoxygenation performance, and dehydration performance; and a method for producing a mayenite-compound-containing product containing the aforementioned mayenite compound.

The present invention provides a mouthpiece or filter element (e.g., for a smoking article such as a cigarette, a tobacco heating product, a HNB product) comprising a longitudinally extending (e.g., substantially cylindrical) hollow tube of paper; a filler layer comprising paper filtering material and/or other biodegradable filtering material engaged around the hollow tube along the full (e.g., longitudinal) length of the hollow tube; and a wrapper (e.g., plugwrap) engaged around the filler layer along the full (e.g., longitudinal) length of the filler layer, wherein the hollow tube, the filler layer and the wrapper are the same length.

The present application discloses melt processable cellulose ester compositions comprising a cellulose ester, at least one alkaline additive, and at least one neutralizing agent. Plasticizers can be optionally used in the compositions. The present application also discloses processes for preparing the compositions and articles that can be made from the compositions. The compositions show improved degradation properties.

This sheet for a flavor inhalation article includes (A) adsorption particles in the amount of 20 g/m.sup.2 or more. (B) pulp, and (C) polyester fibers.