A process for producing a filter element suitable for use in smoking articles may include: embedding a bundle of cellulose acetate fibers with an aqueous suspension of polyhydroxyalkanoate (PHA) to obtain a wet bundle of the cellulose acetate fibers covered by the aqueous suspension of the PHA; shaping the wet bundle in a form of a continuous elongated element; heating the continuous elongated element to temperature greater than or equal to 140° C. and less than or equal to 180° C. for time sufficient to melt the PHA and to evaporate water from the continuous elongated element; cooling the heated continuous elongated element to obtain crystallization of the PHA; and cutting the so-obtained continuous elongated element into segments of predetermined length.

A process for producing a filter element suitable for use in smoking articles may include: embedding a bundle of cellulose acetate fibers with an aqueous suspension of polyhydroxyalkanoate (PHA) to obtain a wet bundle of the cellulose acetate fibers covered by the aqueous suspension of the PHA; shaping the wet bundle in a form of a continuous elongated element; heating the continuous elongated element to temperature greater than or equal to 140° C. and less than or equal to 180° C. for time sufficient to melt the PHA and to evaporate water from the continuous elongated element; cooling the heated continuous elongated element to obtain crystallization of the PHA; and cutting the so-obtained continuous elongated element into segments of predetermined length.

Disclosed herein is a degradable cellulose ester. The cellulose ester may be formed into tow for use in cigarette filters or into articles, such as molded articles. A basic material, an enzymatic material, or combinations thereof is included in the cellulose ester in order to degrade the cellulose ester.

Disclosed herein is a degradable cellulose ester. The cellulose ester may be formed into tow for use in cigarette filters or into articles, such as molded articles. A basic material, an enzymatic material, or combinations thereof is included in the cellulose ester in order to degrade the cellulose ester.

An aerosol generating article includes an aerosol generator including a first aerosol generating material which does not include nicotine; a tobacco filler arranged adjacent to an end of the aerosol generator and including a second aerosol generating material including nicotine; a cooler arranged adjacent to an end of the tobacco filler and configured to cool aerosol; and a mouth piece arranged adjacent to an end of the cooler.

A cooling element comprising a longitudinally extending core including a plurality of longitudinally extending bores wherein each bore has a diameter ≥0.8 mm.

A cooling element comprising a longitudinally extending core including a plurality of longitudinally extending bores wherein each bore has a diameter ≥0.8 mm.

Disclosed is a cigarette filter including: natural plant based granules composed of a natural plant material and a binder; and a filter portion to accommodate therein the natural plant based granules, in which the binder is hydroxy propyl methyl cellulose (HPMC), and a weight ratio of the natural plant material and the binder is in a range of 95 to 99%:5 to 1%. Further, disclosed are a preparation method of the cigarette filter, and a cigarette including the cigarette filter.

Disclosed is a cigarette filter including: natural plant based granules composed of a natural plant material and a binder; and a filter portion to accommodate therein the natural plant based granules, in which the binder is hydroxy propyl methyl cellulose (HPMC), and a weight ratio of the natural plant material and the binder is in a range of 95 to 99%:5 to 1%. Further, disclosed are a preparation method of the cigarette filter, and a cigarette including the cigarette filter.

A method for producing filters for smoking articles includes: providing a filter rod, the filter rod having a cylinder shape with a first filter rod end, a second filter rod end and a circumferential filter rod surface; providing an outer wrapper; wrapping the outer wrapper around the filter rod along a filter rod circumferential direction covering at least parts of the circumferential filter rod surface; obtaining a wrapped filter rod; cutting the wrapped filter rod perpendicular to a filter rod longitudinal direction into outer and inner wrapped filter rod segments, wherein first and second outer wrapped filter rod segments include the first and second filter rod ends, respectively, and have a length being less than 10% of a total length of the filter rod and/or less than 10 mm; and obtaining the inner wrapped filter rod segments as the filters and disposing the outer wrapped filter rod segments.