A24DCIGARSCIGARETTESTOBACCO SMOKE FILTERSMOUTHPIECES FOR CIGARS OR CIGARETTESMANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECESIn this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme. A24D1/00 A24D1/00CigarsCigarettes A24D1/002with additives, e.g. for flavouring preparing tobacco, e.g. flavouring, A24B A24D1/004with a filter located between tobacco rods A24D1/006with reinforced extremities A24D1/008dividable A24D1/02with special covers A24D1/022Papers for roll-your-own cigarettes paper in general D21H A24D1/025the covers having material applied to defined areas, e.g. bands for reducing the ignition propensity A24D1/027with ventilating means, e.g. perforations A24D1/04with mouthpieces or filter-tips mouthpieces, filter-tips per se A24D3/00 A24D1/042with mouthpieces A24D1/047 takes precedence; mouthpieces per se A24D3/18 A24D1/045with smoke filter means A24D1/047 takes precedence A24D1/047extensible A24D1/08with lighting means pyrophoric compositions C06C15/00; lighters per se F23Q A24D1/10with extinguishers A24D1/12with ash-retaining attachments, holders, or other equipment A24D1/14Tobacco cartridges for pipes A24D1/16Bands for cigars or cigarettes machines for applying bands B65C A24D1/18Selection of materials, other than tobacco, suitable for smoking A24D1/20Cigarettes specially adapted for simulated smoking devices A24D1/22Cigarettes with integrated combustible heat sources, e.g. with carbonaceous heat sources A24D3/00Tobacco smoke filters, e.g. filter-tips, filtering insertsFilters specially adapted for simulated smoking devicesMouthpieces for cigars or cigarettes for pipes, for cigar or cigarette holders A24F7/00 A24D3/02Manufacture of tobacco smoke filters manufacture of paper or cellulosic materials for filters D21 A24D3/0204Preliminary operations before the filter rod forming process, e.g. crimping, blooming A24D3/0275 takes precedence A24D3/0208Cutting filter materials A24D3/0212Applying additives to filter materials A24D3/0216the additive being in the form of capsules, beads or the like A24D3/022with liquid additives, e.g. application of plasticisers A24D3/0225with solid additives, e.g. incorporation of a granular product A24D3/0216 takes precedence A24D3/0229Filter rod forming processes A24D3/0275 takes precedence A24D3/0233by means of a garniture A24D3/0237by extrusion A24D3/0241by compacting particulated materials A24D3/0245by winding, e.g. spirally A24D3/025Final operations, i.e. after the filter rod forming process A24D3/0275 takes precedence A24D3/0254Cutting means A24D3/0258Means for making grooves A24D3/0262Filter extremity shaping and compacting means A24D3/0266Rolling means A24D3/027Multiple line manufacturing devices A24D3/0275for filters with special features A24D3/0279with tubes A24D3/0283with means for a non-axial smoke flow A24D3/0287for composite filters A24D3/0291for hollow tipped filters, e.g. recess filters A24D3/0295Process control means A24D3/04Tobacco smoke filters characterised by their shape or structure A24D3/041with adjustable means for modifying the degree of filtration of the filter A24D3/043with ventilation means, e.g. air dilution A24D3/041 takes precedence A24D3/045with smoke acceleration means, e.g. impact-filters A24D3/046with electrical or magnetical filtering means A24D3/048containing additives A24D3/06Use of materials for tobacco smoke filters A24D3/061containing additives entrapped within capsules, sponge-like material or the like, for further release upon smoking constructional aspects of the filter A24D3/048 A24D3/062characterised by structural features A24D3/063of the fibers A24D3/064having non-circular cross-section A24D3/065with sheath/core of bi-component type structure A24D3/066in the form of foam or having cellular structure A24D3/067characterised by functional properties A24D3/068Biodegradable or disintegrable A24D3/08of organic materials as carrier or major constituent of ion exchange materials A24D3/12 A24D3/10of cellulose or cellulose derivatives A24D3/12of ion exchange materials A24D3/14of organic materials as additive of ion exchange materials A24D3/12 A24D3/145Microbial metabolite, e.g. enzyme A24D3/16of inorganic materials A24D3/163Carbon A24D3/166Silicic acid or silicates A24D3/17Filters specially adapted for simulated smoking devices A24D3/18Mouthpieces for cigars or cigarettesManufacture thereof A24D3/02 takes precedence; making tipping materials for, or attaching them to mouthpieces of, cigars or cigarettes A24C5/56; producing cigar or cigarette holders from plastics or from substances in a plastic state B29D23/14; manufacture from metal, see the relevant subclasses of Section B A24D3/185with a straw-like insert, e.g. Virginia cigars