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2374 results about "Cigarette filter" patented technology
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A cigarette filter, also known as a filter tip, is a component of a cigarette, along with cigarette paper, capsules and adhesives. It does not make cigarettes less unhealthy. The filter may be made from cellulose acetate fibre, paper or activated charcoal (either as a cavity filter or embedded into the cellulose acetate). Macroporous phenol-formaldehyde resins and asbestos have also been used in cigarette filters. The acetate and paper modify the particulate smoke phase by particle retention (filtration), and finely divided carbon modifies the gaseous phase (adsorption). In laboratory testing, filters have been shown to reduce "tar" and nicotine smoke yields up to 50%, with a greater removal rate for certain classes of compounds (e.g., phenols) compared to others—the filters are particularly inefficient at removing gases of very low molecular weight, such as carbon monoxide. In addition, most of these measured reductions occur only when the cigarette is smoked on a smoking machine; when smoked by a human, the compounds are delivered into the lungs regardless of whether or not a filter is used.
Method and apparatus for making cigarette filters with a centrally located flavored element
A filter making apparatus includes a positioning device having a passageway therethrough, with the passageway guiding a continuous flavor element such as a continuous strand of textile material from an inlet of the passageway to an outlet of the passageway. A liquid flavorant is introduced into the passageway at a desired flow rate and the strand of material carries the supplied liquid flavorant out of the positioning device at a rate substantially equal to the desired flow rate. A portion of the passageway can form a bath of the liquid flavorant supplied to the passageway through a separate inlet at approximately atmospheric pressure. A portion of the positioning device guides the continuous strand of material through the bath, or guides the strand to pass along the bottom of the passageway, and the saturated or partially saturated strand of material then exits from an outlet of the passageway to a point in the path of filter tow material that is being converged to form a filter rod.
Owner:PHILIP MORRIS USA INC
Method and apparatus for incorporating objects into cigarette filters
Owner:R J REYNOLDS TOBACCO COMPANY
Method and apparatus for incorporating objects into cigarette filters
ActiveUS20050070409A1Tobacco treatmentPaper/cardboard wound articlesFilter materialMechanical engineering
Cigarette filter rods having individual objects positioned at predetermined intervals therein are prepared by transferring the individual objects from a rotating horizontal pan to a rotating vertical wheel and then depositing the object into a web of filter tow. Each object is positioned within the moving web of tow. The web filter material and the objects positioned within the web are introduced into a rod-forming unit wherein the rod is formed. The rate of feed of the filter tow, the rate of rotation of the horizontal pan and the vertical wheel are controlled relative to one another such that objects are positioned at predetermined intervals along the rod. Cigarette filter elements having well controlled amounts of flavorant contained therein can be made from the rods.
Owner:R J REYNOLDS TOBACCO COMPANY
Apparatus for Inserting Objects into a Filter Component of a Smoking Article, and Associated Method
ActiveUS20080302373A1Paper/cardboard wound articlesCigarette manufactureFilter materialBiomedical engineering
An apparatus for manufacturing a rod member for a cigarette filter element, is provided. Each rod member defines a longitudinal axis and includes a generally longitudinally-extending filter material and a plurality of objects disposed therein along the longitudinal axis. Such an apparatus comprises a rod-forming unit configured to form a continuous supply of a filter material into a continuous cylindrical rod member. An object insertion unit is configured to introduce a plurality of objects into engagement with the rod member. A rod-dividing unit is configured to divide the rod member into a plurality of rod portions such that each rod portion includes a plurality of the objects. Associated method are also provided.
Owner:R J REYNOLDS TOBACCO COMPANY
Cigarette filter comprising a degradable fiber
A cigarette filter is provided that includes at least one filter segment having at least one biodegradable fiber imbedded therein, the biodegradable fiber optionally carrying an additive capable of altering the flavor or aroma of mainstream smoke, such as an adsorbent material, a flavorant, or a deodorizing agent. Smoking articles incorporating such a cigarette filter are also provided.
Owner:R J REYNOLDS TOBACCO COMPANY
Apparatus for inserting objects into a filter component of a smoking article, and associated method
An apparatus and associated method is provided for forming a rod for use in the manufacture of cigarette filter elements. A continuous supply of a filter material is formed into a continuous filter rod by a rod-forming unit. An object insertion unit is configured to insert a plurality of first objects and a plurality of second objects into the continuous filter rod. A rod-dividing unit is configured to subdivide the continuous filter rod, at predetermined intervals along the longitudinal axis thereof, into a plurality of filter rod portions such that each filter rod portion includes at least one first object and at least one second object disposed therein, with the first objects being different from the second objects.
Owner:R J REYNOLDS TOBACCO COMPANY
Apparatus for inserting objects into a filter component of a smoking article, and associated method
ActiveUS7972254B2Paper/cardboard wound articlesCigarette manufactureFilter materialBiomedical engineering
Owner:R J REYNOLDS TOBACCO COMPANY
Apparatus and method for filling cavities with metered amounts of granular particles
InactiveUS6837281B2Accurate fillingFast transferLiquid fillingSolid materialEngineeringVacuum chamber
A method and apparatus for delivering predetermined amounts of material, the apparatus including a vertical drop chute, a filling chamber, a rotating wheel with pockets, a central stationary drum with at least one vacuum chamber and an air jet, and a vacuum rail for transporting an article underneath the rotating wheel and transferring the particles from pockets in the wheel to cavities in the article. The particles can be carbon or charcoal granules and the article can be a cigarette filter rod.
Owner:PHILIP MORRIS USA INC
Biodegradable cigarette filter
InactiveUS20120000480A1Improve degradation rateIncrease usable surface areaTobacco treatmentTobacco smoke filtersFiberCellulose acetate
A biodegradable fiber (including fiber tow) and / or biodegradable paper substrate may be coated with cellulose acetate and / or plasticized cellulose acetate for use in a filter material configured for application in a filter of a smoking article. A filter made in accordance with this design may also include non-biodegradable material.
Owner:R J REYNOLDS TOBACCO COMPANY
A cigarette filter filament and preparation method thereof
InactiveCN1961765ANo pollutionReduce pollutionTobacco smoke filtersHeating/cooling textile fabricsPolyesterPolymer resin
The invention relates to a tobacco filter tip and relative preparation, wherein it is formed by spinning the lactic acid polymer resin, drawing, coiling and shaping, while the line density is 2-6dtex, the beam density is 3-6ktex, the coil number is 15-30n / 25mm. And it uses the adhesive method similar acetate fabric. Therefore, its polymer structure and large specific area can support the adsorption on organic, and filter the solid particle.
Owner:CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
Cigarette filter with beaded carbon
ActiveUS20060180164A1Efficiently and effectively adsorbingAvoid excessive impactTobacco treatmentCigar manufactureGas phaseEngineering
A smoking article such as a cigarette comprises a tobacco rod and a filter component having a cavity filled with spherical beaded carbon. As mainstream tobacco smoke is drawn through the filter component, targeted gas phase smoke constituents are removed as the smoke passes through the carbon. During the filter manufacturing process the spherical beaded carbon flows like a liquid and substantially completely fills the cavity. Point-to-point contact between the spherical beads together with substantially complete filling of the cavity produces minimal channeling of ambulatory gas phase as well as maximum contact between the gas phase and the carbon surface of the spherical beads during smoking.
Owner:PHILIP MORRIS USA INC
Plant polysaccharide cigarette filter tip and preparation method thereof
The invention discloses a plant polysaccharide cigarette filter tip and a preparation method thereof. Plant polysaccharide, starch, adsorbent, plasticizer, emulsifier, waterproofing agent and plant protein are blended according to a certain proportion, so that the filter tip is prepared. The preparation method includes the following steps: (a) the starch, water and the plasticizer are blended and stirred, so that modified starch solution is obtained; (b) the plant polysaccharide and the modified starch solution are blended; (c) under certain conditions, the emulsifier, the waterproofing agent and the adsorbent are added into the mixture of the plant polysaccharide and the modified starch solution, and after stirring, the mixture is injected into a long cylindrical mold made of anti-freezing, heat-proofing material and molded; (d) the semifinished product is placed into a freezing environment and frozen, i.e. prefreezing; (e) the semifinished product in step d is placed into a freeze dryer and freeze-dried; (f) the porous composite body is taken out of the mold and deburred, and thereby a filter tip stick is obtained. Material resources are rich, the cost is low, and the three wastes cannot be produced. The performance is good, the filter tip can reduce the nicotine content by 40.2 to 84.1 percent, the tar by 26 to 72.1 percent and the nicotinamide by 20 to 39.2 percent, and after use, waste can be biodegraded.
Owner:WUHAN LICHENG BIOTECH +1
Cigarette Filter Comprising a Carbonaceous Fiber
The invention provides a cigarette filter including at least one filter segment having one or more composite fiber structures imbedded therein, the composite fiber structure including a carrier fiber and an adsorbent fiber, the adsorbent fiber including an adsorbent material. The filter can include one or more segments of fibrous tow material, with the one or more composite fiber structures imbedded within the fibrous tow, the composite fiber structure including a carrier fiber and a carbonaceous fiber.
Owner:R J REYNOLDS TOBACCO COMPANY
Parallel cigarette filter combining techniques with particle filling of cavities
ActiveUS20060157070A1Quality improvementFast processingCigarette manufactureTobacco smoke filtersEngineeringMechanical engineering
Apparatus and method for forming cigarette filters comprise a single or multiple hopper system for forming filter components of single or multiple sizes. The filter components with spaces therebetween are partially wrapped and then conveyed to at least one media applying wheel where media is deposited into the spaces between the filter components. A cover cap is formed and placed over the partially wrapped filter components downstream of the media wheel to thereby completely wrap the filter components. Subsequently, the completely wrapped filter components are joined to tobacco rods with tipping paper.
Owner:PHILIP MORRIS USA INC
Apparatus for enhancing a filter component of a smoking article, and associated method
ActiveUS20100101589A1Good effectAdd flavorPaper/cardboard wound articlesCigarette manufactureEngineeringFilter material
An apparatus and method for manufacturing a rod member for a cigarette filter element is provided. Each rod member defines a longitudinal axis and includes a generally longitudinally-extending filter material. A rod-forming unit is configured to form a continuous supply of a filter material into a continuous cylindrical rod member. An object insertion unit is configured to introduce a plurality of objects into engagement with the rod member along the longitudinal axis. A dispensing device is configured to selectively dispense a liquid substance into the filter material, substantially commensurately with the introduction of the plurality of objects into engagement with the rod member, wherein the liquid substance is configured to affect an attribute associated with the objects. A rod-dividing unit is configured to divide the rod member into a plurality of rod portions such that each rod portion includes at least one object and a portion of the liquid substance.
Owner:R J REYNOLDS TOBACCO COMPANY
Vertical filter filling machine and process
ActiveUS20060112963A1Efficient and economical mannerIncrease chanceTobacco treatmentPaper/cardboard wound articlesVertical filterFilter material
Process and apparatus for the mass production of compound cigarette filters function to deposit granular filter material into the open ends of vertically oriented filter tubes. Predetermined amounts of diverse granular material are withdrawn by suction from sources of such material, and these amounts are deposited into the tubes. Solid filter segments seal the granular material within the tube. After one half of each filter tube is filled with granular material and sealed, the tube is inverted and the opposite end is filled in substantially the same manner. When cut in half each filter tube produces two cigarette filters.
Owner:PHILIP MORRIS USA INC
The cigarette filters comprising natural herb material and its cigarette
The present invention relates to a cigarette filter comprising natural herb plant material and a cigarette with it. According to the present invention, the filter is filled with the natural herb plant cut at a certain size. The herb plant is used as a form of a reconstituted tobacco sheet, a form of being cut after drying, and granule form. The cigarette filter according to the present invention can allow smokers to enjoy natural herb flavor, as well as an aromatherapy effect upon smoking and substantially reduce oral odor and cigarette odor emanated from a mouth of a smoker by neutralizing odor unique to the cigarette.
Owner:KT&G CO LTD
Touch control electronic cigarette
InactiveUS20150320114A1Simple structureReduce manufacturing costTobacco smoke filtersTobacco pipesComputer moduleHabit
A touch control electronic cigarette comprises a casing containing a fragrance; a cigarette filter arranged at the rear end of the casing; a smoke generator arranged inside the casing and atomizing the fragrance into gas; a capacitive sensor module arranged inside the cigarette filter, and generating capacitance variation functioning as a triggering signal while the user is touching the cigarette filter; and a control chip arranged inside the casing, controlling the smoke generator according to the triggering signal to atomize the fragrance into gas, which is to be inhaled by the user, and stopping controlling the smoke generator to atomize the fragrance while the user does not touch the cigarette filter. The present invention is not turned on by push button but triggered by lips of the user lest the user turn on the electronic cigarette imprudently. Besides, the present invention conforms to the usage habit of users.
Owner:WU NA
Electronic clean cigarette
InactiveCN101366554AGood for physical and mental healthMeet the needs of modern civilizationTobacco devicesMouth pieceFiber
The invention discloses an electronic pure cigarette, which comprises a cigarette holder part and a cigarette rod part. The cigarette rod part consists of a cigarette rod shell, a battery, a sensor, an indicating lamp, a circuit control board, a indicating lamp cover, an air inlet, an air outlet, an output end, and the like. The cigarette holder part consists of a cigarette holder shell, an electric heater, a tobacco extract, an organic fiber, an air inlet, an air outlet, an input end, and the like. The use effect and the taste of the electronic pure cigarette are very similar to that of the common cigarette, and thus a substitute which is extremely similar to the common cigarette in the use effect and the taste is provided. Meanwhile, the automatic control function of the electronic products is performed. The occurrence and the pause of the smoke are controlled along with the smoking motions, and a disposable cigarette holder which has the same shape as the filter tip part of the common cigarette and is clean and sanitary is provided. A novel electronic pure cigarette is created, thereby improving the physical and mental health of wide smokers and meeting the requirements of modern civilization.
Owner:王山红
Filtering material for cigarette filter tip and its preparation method
ActiveCN101103845AEasy to shapeConducive to the manufacture of cigarettesTobacco preparationTobacco treatmentEconomic benefitsTar
The invention discloses a filter material for cigarette filter and the preparation method. Based on the expanded cabo particles from <The Preparation Method of an Expanded Cabo Particles and Relevant Equipment> (Application No.: 200710065892.3), the expanded cabo particles are extracted, shaped and selected as so to become the required filter material. The filter material utilizes the waste in the cigarette production, which not only has significant economic benefits, but also is not necessary to be recycled, and will not cause the abrasion of equipment and affect the sensory quality of cigarette. The filter material is uniformly arranged on the filter tows so as to make a composite filter; as the composite is applicable to the cigarette, the smell of the cigarette will be more clear and soft, and the tar and nicotine content in the smoke gas can be reduced effectively. The invention has the advantages that: the operation is simple; the effect is remarkable, therefore the invention has a good applicable prospect.
Owner:HONGYUN HONGHE TOBACCO (GRP) CO LTD +1
Degradable cigarette filter
A degradable cigarette filter includes a filter element of a bloomed cellulose acetate tow, a plug wrap surrounding the filter element, and either a coating or a pill in contact with the tow. The coating and / or pill may be composed of a material adapted to catalyze hydrolysis of the cellulose acetate tow and a water-soluble matrix material. The material may be an acid, an acid salt, a base, and / or a bacterium adapted to generate an acid. The coating may be applied to the tow, the plug wrap, or both. The pill may be placed in the filter element. When water contacts the water-soluble matrix material, the material adapted to catalyze hydrolysis is released and catalyzes the hydrolysis, and subsequent degradation, of the cellulose acetate tow. The foregoing is also applicable to articles made of cellulose esters.
Owner:ACETATE INT LLC
Process For Making Filter Tow
InactiveUS20080245376A1Consistent amountReduce concentrationCigar manufacturePaper/cardboard wound articlesCellulose acetateCyclodextrin
A method of preparing a crimped tow of cellulose acetate filaments comprising the steps of: a) providing cellulose acetate dope b) forming filaments (23) from the dope c) applying at least one additive to the filaments d) crimping the filaments to form a crimped tow wherein the at least one additive is capable of removing a component from cigarette smoke. Preferably, the component is a Hoffmann analyte. The additive may comprise a solution, liquid, emulsion or particulate material or combinations thereof. Preferably, the additive comprises an acidic compound or an alkaline compound. The additive may comprise malic acid, potassium carbonate, citric acid, tartaric acid, lactic acid, ascorbic acid, polyethyleneimine, cyclodextrin, sodium hydroxide, sulphamic acid, sodium sulphamate, polyvinyl acetate and carboxylated acrylate, carbon, silica, zeolite, clay, alumina, metal, molecular sieves or an ion exchange resin. The product tow can be processed on standard equipment to make efficient filter rods from which cigarette filter tips can be made which give significantly increased and selective retention of key smoke constituents.
Owner:CELANESE ACETATE LLC
Degradable slitted cigarette filter
ActiveUS7435208B2Promote degradationImprove efficiencyTobacco treatmentCigar manufactureMechanical engineeringCigarette filter
A cigarette filter comprises an elongate filter component having a longitudinal axis. A plurality of spaced apart slits generally perpendicular to the longitudinal axis of the filter component partially extend into the component. The slits enable the filter to disintegrate and more readily degrade after being used and discarded. Processes and apparatus are provided for producing such cigarette filters.
Owner:PHILIP MORRIS USA INC
Producing triple section filters using a dual rod filter maker
InactiveUS20060025292A1Reduce switching costsSave stepsPaper/cardboard wound articlesTobacco smoke filtersEngineeringFour component
A method of producing a multi-component cigarette filter having one more filter component than the number of hoppers on the machine producing the cigarette filter rods. A dual hopper machine can produce two-component filters as well as three-component filters, and a three hopper machine can produce three-component filters as well as four-component filters.
Owner:BROWN & WILLIAMSON TOBACCO
Tobacco smoke filter elements
InactiveUS20040074507A1Stay rigidAvoid absorptionCigar manufactureTobacco smoke filtersEngineeringTobacco smoke
This invention relates to the provision in a cigarette filter element of a capsule containing a deodoriser. The capsule is resistant to the handling endured before and during smoking, yet ruptures to release or expose the deodoriser upon extinguishing of the smoked cigarette. The deodoriser may comprise neutralising or masking agents, or mixtures of both.
Owner:BRITISH AMERICAN TOBACCO (INVESTMENTS) LTD
Process for making filter tow
InactiveUS8308624B2Consistent amountReduce concentrationCigar manufacturePaper/cardboard wound articlesCellulose acetateCyclodextrin
Owner:CELANESE ACETATE LLC
Mixed fiber sliver for use in the manufacture of cigarette filter elements
Smoking articles including filter elements formed from two or more fibrous inputs with different physical properties are provided. The two or more fibrous inputs are provided in the form of staple fibers, which are at least partially entangled with each other to form a mixed fiber sliver. The mixed fiber sliver includes a first plurality of cellulose acetate staple fibers blended with a second plurality of staple fibers comprising a polymeric material different from the first plurality of staple fibers, such as staple fibers of a degradable polymeric material. The entangled fibers of the mixed fiber sliver may be sufficiently separated from one another such that blooming operations typically required in filter element production may not be necessary prior to incorporating the mixed fiber sliver into a filter element. Related methods, apparatuses and mixed fiber products are also provided by the disclosure.
Owner:R J REYNOLDS TOBACCO COMPANY
Novel mesoporous material for absorbing granule phase substance, coke tar, phenol and amine nitrite in mainstream flue gas of tobacco
InactiveCN101433818ANo change in microscopic morphologyNo change in macroscopic appearanceTobacco smoke filtersSilicon compoundsParticulatesToxicant
The invention discloses a novel mesoporous material for adsorbing tar, phenol and special nitrosamine in tobacco and so on, in mainstream smoke of the tobacco. The mesoporous material with high adsorption property is used as an addition material for filter tips of cigarettes; and the mesoporous material is a mesoporous molecular sieve with a three-dimensional mesh microstructure and monolithic appearance such as SBA-15,or is a SBA-15 mesoporous molecular sieve material which is plated with a liquid film or is modified by metal oxides such as zirconia and is provided with the three-dimensional mesh microstructure and the monolithic appearance. The invention adopts a more convenient and effective method to develop the SBA-15 mesoporous molecular sieve material with the three-dimensional mesh microstructure and the monolithic appearance and modify the surface / a surface layer, has good performance of intercepting environmental toxins such as interception particulate phase matters and phenol in smoke, has the characteristics of saving energy, saving time, and reducing environmental pollution during the preparation, can also reduce cost, and has remarkable economic benefit and social benefit.
Owner:NANJING UNIV
Apparatus for inserting objects into a filter component of a smoking article
ActiveUS8262550B2Coupling device connectionsSubstation/switching arrangement detailsEngineeringFilter material
Owner:R J REYNOLDS TOBACCO COMPANY
Additive agent for reducing harmful constituents in flue gas and method for preparing same
ActiveCN101199363ARefreshingWith anti-greasy weight lossTobacco smoke filtersFiberPolyethylene glycol
The invention discloses an additive which can reduce harmful components in smoke and the preparation method. The invention is mainly characterized in that the materials include jasmine tea, liquorice, Beta-cyclodextrin, polyethylene glycol, honey, lactic acid and glyceryl triacetate and the materials are processed into cigarette filter additive, and then are evenly sprinkled on the polypropylene or acetate fiber cigarette filter rod and at last are rolled into a cigarette; the weight of the additive is 0.5-5% of the weight of the cigarette filter rod. Compared with a reference cigarette, the cigarette filter rod additive is balanced in tea aroma, flower fragrance, cigarette aroma and drug aroma and can improve the taste of the cigarette, enabling the cigarette to have balanced aroma, comfortable aftertaste and slender and soft smoke; the invention also reduces total particulate matter in the cigarette by 3.0-5.6%, tar by 2.9-6.6%, carbon monoxide by 2.5-10% and nicotinamide by 0.9-1%, and effectively reduces peppery irritation to the respiratory system of the smoker from the smoke, reduces respiratory diseases as well as harm to the smoker.
Owner:CHINA TOBACCO GUANGXI IND
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