An insertable filter unit for insertion into a smoking article filter having a recess, wherein the insertable filter unit comprises an outer casing defining a cavity for storing a smoke modifying agent, and wherein the insertable filter unit is arranged to be inserted into the recess of the smoking article filter by a user.

A method of producing smoking articles, the method comprising a first step of providing a continuous array of first filter members (42), second filter segments (20) and tubular members (40). A tubular member (40) is provided between each pair of consecutive first filter members (42) and a second filter segment (20) is provided between each first filter member (42) and each tubular member (40). Each second filter segment (20) contains one or more breakable capsules, wherein each breakable capsule comprises an outer shell and an inner core containing an additive. The continuous array of first filter members (42), second filter segments (20) and tubular members (40) is then wrapped with a continuous sheet of plug wrap (44) to form a wrapped filter array, wherein the plug wrap (44) has a basis weight of less than 90 grams per square metre. The wrapped filter array is cut at an intermediate position along each first filter member (42) to provide multiple filter rods, each filter rod comprising two first filter segments (18), a tubular member (40) positioned between the first filter segments (18) and a second filter segment (20) provided between each first filter segment (18) and the tubular member (40). Next, a tobacco rod (12) is provided in axial alignment with and adjacent to each first filter segment (18) of one of the filter rods, and the filter rod and a portion of each tobacco rod (12) are wrapped in a tipping wrapper (50). Finally, the tipping wrapper (50) and the filter rod are cut at an intermediate position along the length of the tubular member (40) to form multiple smoking articles (10), each smoking article (10) comprising a tobacco rod (12) connected to a filter (14), wherein each filter (14) comprises a first filter segment (18) downstream of the tobacco rod (12), a second filter segment (20) downstream of the first filter segment (18), and a hollow tube segment (22) positioned between the second filter segment (20) and the mouth end of the filter (14). The hollow tube segment (22) defines a cavity (24) at the mouth end of the filter (14).

The embodiments herein provide a filter for cigarette comprising graphene nano-composite based material enclosed in a casing. The filter is reusable and is plugged to any cigarette, or tobacco smoking products. The filter is a stand-alone product or manufactured integrally with each individual cigarette. The filter provides a safe smoking option to tobacco smokers without changing their smoking habits by reducing the tar content and other toxic chemicals in the inhaled smoke. The graphene based nanocomposite filter adsorbs the toxic agents from the smoke (of cigarette, beedi, hookah etc). The filter is fabricated by treating ceramic particles and coating them with carbon particles. The carbon particles are carbonized. The ceramic particles coated with carbon are segregated based on shape and size and treated chemically to convert carbon into graphene under inert conditions. The graphene coated particles are chemically functionalized for improved filtration.

A cigarette includes a tobacco rod and a filter rod connected to a downstream end portion of the tobacco rod. A portion of the filter rod includes a cooling portion, and the cooling portion includes sucrose as a cooling material.

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.

Joint and blunt tips include at least one cut portion made into a corrugated section of the tip. The cut portion provides a suitable width to receive at least one flavor capsule to be nested therein. When rolled, the corrugated section of the tip forms a pattern which prevents the flavored capsule from falling out of the tip when the flavor capsule is crushed. The tip may be provided in a cylindrical tip form or a conical tip form and works with rolling machines. The cut portion may be formed in a vertical or horizontal configuration along the corrugated section of the tip. One embodiment may feature tips which include a cotton or absorbent member inserted within the cut portion nestled with the flavor capsule. Other embodiments include tips with an absorbent layer along the corrugated section to absorb the contents of the flavor capsule when crushed.

A device for burning smoking material and inhaling the resulting smoke is disclosed. The device can include a tubular member formed from a dried leaf having an internal elongated cavity extending from an open end to a closed end. The elongated cavity can be configured to receive a smoking material. The smoking accessory can include a filter disposed within dried leaf and defining the closed end. The filter can have a recess formed in a surface of the cylindrical body along a curved face extending from the first end to the second end, the recess extending radially into the cylindrical body. The smoking accessory can include a capsule containing a flavoring agent disposed within the recess.

A method for preparing a tar extract with aroma characteristics from a discarded cigarette butt includes: (1) adding the discarded cigarette butt to an extraction solvent, and carrying out subcritical fluid extraction to obtain an extraction solution; (2) carrying out vacuum filtration on the extraction solution, and carrying out vacuum distillation on the filtrate to obtain a concentrated extractum; and (3) carrying out molecular distillation on the concentrated extractum, and collecting a light fraction of the molecular distillation to obtain the tar extract with aroma characteristics. Through the subcritical fluid extraction and separation by the molecular distillation to prepare the tar extract, harmful substances in the tar are removed, and the aroma components are retained. The tar extract is applied to a cigarette to improve the aroma, smoke and taste characteristics of the cigarette.

A tobacco smoke filter or filter element comprising: a rod of a tobacco smoke filtering material; and an elongate member including one or more frangible receptacles integrally formed therein, the or each receptacle(s) including a fluid and being sealed by a capping member.

A flavouring component for a smoking article comprising a rod of flavouring material. The flavouring material comprises a carrier material and flavouring particles adhered to to the carrier material by means of a binder. The flavouring material is formed by passing the carrier material through a mixture comprising the binder and the flavouring particles. Also disclosed is a smoking article including such a flavouring component, and an apparatus and method for manufacturing such a flavouring component.