SI8310344A8 - Filter for cigaretes - Google Patents

Description

BROWN & WILLIAMSON TOBACCO CORPORATIONBROWN & WILLIAMSON TOBACCO CORPORATION

FILTER ZA CIGARETECIGARETTE FILTER

Oblast tehnikeTechnical field

Pronalazak je iz oblasti proizvodnje filtera za cigarete i odnosi se na filter nove konstrukcije,koja omogučuje bolje provetravanje (MKP A 24D 1/06,A 24C 5/50.The invention relates to the field of manufacture of a cigarette filter and relates to a filter of a new construction, which enables better ventilation (MKP A 24D 1/06, A 24C 5/50.

Tehnički problemTechnical problem

Tehnički problem koji se rešava ovim pronalaskom je u torne kako konstrukcijski rešiti filter za cigarete da bi se poboljšala'ventilacija, filtera, a time i smanjivanje količine štetnih materija u dimu koji dospeva u usta pušača. Pored toga konstrukcija filtera treba da omogučava pored ventilacije tj.razblaživanja dima iz cigarete okolnim vazduhom i efikasno filtriranje istog dima tj.zadržava nje štetnih sastojaka u samom filteru.A technical problem to be solved by this invention is how to design a cigarette filter to improve ventilation, filtering, and thus reducing the amount of harmful substances in the smoke that enters the mouth of a smoker. In addition, the design of the filter should allow, in addition to ventilation, ie the dilution of smoke from the cigarette with ambient air and the effective filtration of the same smoke, ie, the retention of harmful ingredients within the filter itself.

Stanje tehnikeThe state of the art

Poznati su u tehnici filteri sa sredstvima za ventilaciju pomoču kojih se u filter dovodi okolni vazduh radi razblaživanja struje dima koja prolazi kroz filter. Razblaživanjem dimne struje smanjuje se količina dimnih čestica kao i komponenata dimne faze koji dospevaju u usta pušača. Predlagana su i koriščena razna sredstva za uvodenje ventilacionog vazduha u cigaretu. Na primer, omotač za duvan cigarete pravi se od poroznog materijala koji omogučuje uvodenje vazduha duž čitave dužine cigarete u kojoj se vazduh meša saFilters are known in the art by means of ventilation means by which ambient air is introduced into the filter to dilute the flow of smoke passing through the filter. Dilution of the smoke stream reduces the amount of smoke particles as well as the smoke phase components entering the mouth of the smoker. Various means of introducing ventilation air into the cigarette have been proposed and used. For example, a cigarette tobacco wrapper is made of a porous material that allows air to be introduced along the entire length of the cigarette in which the air is mixed with the

- 2 strujom dima koja prolazi kroz cigaretu usled čega se dim u toj struji razblažuje. Isto tako omotač cigarete može da bude izbušen na odabranim mestima duž cigarete cime se obezbeduju otvori za ulaz ventilacionog vazduha. Zatim je poznato i da se vrši bušenje omotača filtera cigarete radi ulaska vazduha i razblaživanja dima. Postoji i izvestan broj predloga za uvodenje žljebova unutsr filtera za cigarete da bi se dovela dodatna količina ventilacionog vazduha u struju dima.- 2 with a stream of smoke passing through a cigarette which causes the smoke in that stream to be diluted. Also, the cigarette envelope can be drilled at selected locations along the cigarette, providing openings for ventilation air inlet. It is also known to drill the cigarette filter wrapper to allow air to enter and smoke. There are also a number of suggestions for introducing grooves inside the cigarette filter to bring in additional ventilation air into the smoke stream.

Na primer, U.S. patent No.3,596,663 odnosi se na filter za duvanski dim sa talasastim poroznim omotačem, koji je okružen završnim omotačem sa protočnim perforacijama. Ventilacioni vazduh ulazi u filterski element i žljebove kroz perforacije u završnom omotaču prema ustima pušača. Prema U.S. patentu No.For example, U.S. No. 3,596,663 relates to a tobacco smoke filter with a wavy porous envelope, which is surrounded by an end envelope with flow perforations. Ventilation air enters the filter element and grooves through the perforations in the end casing towards the smoker's mouth. According to the U.S. patent no.

4,256,122 filter obuhvata žljebove koji se pružaju duž spoljne površine tela filtera koje je okruženo neporoznim omotačem preko kojeg je postavljen propustljivi završni omotač tako da pri 1ikom upotrebe kroz pomenute žljebove prolazi samo ventilacioni vazduh, a kroz filter prolazi samo duvanski dim.No. 4,256,122 includes grooves extending along the outer surface of the filter body which is surrounded by a non-porous sheath through which a permeable end sheath is placed such that only ventilation air passes through the grooves when used, and only tobacco smoke passes through the filter.

Drugi patenti koji se odnose na filtere za cigarete sa žljebovima oko filterskog elementa radi uvodenje ventilacionog. vazduha u filter su sledeči: U.S.patent No.3,577,995; U.S.patent No.3,752,347; U.S.patent No.3,490,461;U.S.patent No. 3,788,330; U.S.patentNo.3,773,053; U.S.patent No.3,752,165; U.S.patent No.3,638,661 U.S.patent No.3,608,561; U.S.patent No.3,910,288; U.S.patent No.4,256,122 i U.S. patent No.3,910,288. Medutim kontruktivna rešenja filtera prema ovim patentima se razlikuju od rešenja prema ovom pronalasku.Other patents relating to cigarette filters with grooves around the filter element for the purpose of introducing ventilation. of air into the filter are as follows: U.S. Patent No.3,577,995; U.S. Patent No. 3,752,347; U.S. Patent No. 3,490,461; 3,788,330; U.S. Patent No. 3,773,053; U.S. Patent No. 3,752,165; U.S. Patent No.3,638,661 U.S. Patent No.3,608,561; U.S. Patent No. 3,910,288; U.S. Patent No. 4,256,122 and U.S. Pat. No. 3,910,288. However, the constructive filter solutions of these patents differ from the solutions of the present invention.

Iako se ovim poznatim rešenjima postižu relativno dobri rezultati u uklanjanju štetnih sastojaka iz duvanskog dima postoji potreba da se eliminacija tih štetnih sastojaka učini još efikasnojom uz što manji negativen uticaj na ukus duvanskog dima koji dospeva do usta pušača.Although these known solutions have achieved relatively good results in the removal of harmful ingredients from tobacco smoke, there is a need to make the elimination of these harmful ingredients even more effective with as little as possible a negative effect on the taste of tobacco smoke reaching the mouth of smokers.

- 3 Opis rešenja tehničkog problema sa popisom i kratkim opisom slika načrta- 3 Description of a solution to a technical problem with a list and brief description of the plan pictures

Navedeni tehnički problem rešava se novom konstrukcijom filtera za cigarete prema pronalasku, koji kao i poznati filteri te vrste obuhvata porozno telo filtera uglavnom cilindričnog oblika, dok se od poznati h filtera razlikuje po torne što je oko tela filtera postavljen za vazduh propustljivi omotač tako da su krajevi tela filtera sl obodni, pri čemu je u tom omotaču izveden bar jedan žljeb sa zidovima nepropustl jivim za dim i vazduh, Joj i jena jachom kraju otvoren i koji se odatle pruža longitudinalno do rastojanja kračeg od dužine tela filtera. Oko navedenog omotača je postavljen završni omotač propustljiv za vazduh koji omogučuje dotok ventilacionog vazduha u pomenuti žljeb tako da je ventilacioni vazduh jedina supstanca koja prolazi kroz taj žljeb. Ventilacioni vazduh takode prolazi kroz propustljivi deo omotača u telo filtera tako da se meša za duvanskim dimom i razblažuje ga .This technical problem is solved by the new construction of a cigarette filter according to the invention, which, like well-known filters of this type, comprises a porous body of filters of substantially cylindrical shape, while distinguishing them from known h filters by a permeable air-permeable body around the filter body such that the ends of the filter body en circumferential, wherein at least one groove with walls impermeable to smoke and air is formed in that sheath, and the yen and yen are very open and from there extend longitudinally to a distance shorter than the length of the filter body. An air permeable end sleeve is provided around said sheath to allow ventilation air to flow into said groove so that ventilation air is the only substance that passes through that groove. Ventilation air also passes through the permeable portion of the envelope into the filter body so that it mixes with the tobacco smoke and dilutes it.

Pronalazak če biti detaljnije objašnjen s pozivom na priložene crteže na kojima:The invention will be explained in more detail with reference to the accompanying drawings, in which:

Slika 1 predstavlja perspektiven izgled filtera za cigarete prema pronalasku sa uklonjenim završnim omotačem da bi se jasnije prikazali razni detalji;Figure 1 is a perspective view of a cigarette filter according to the invention with the end wrap removed to show the various details more clearly;

Slika 2 predstavlja uvečan jednog kraja filtera u pravcu strelice 2-2 sa slike 1 ;Figure 2 is a magnified view of one end of the filter in the direction of arrow 2-2 of Figure 1;

Slika 3 je perspektiven izgled cigarete sa filterom sa slike 1, čiji je završni omotač delimično odmotan, iFigure 3 is a perspective view of the filter cigarette of Figure 1, the end wrap of which is partially unwound, and

Slika 4 je perspektivan izgled cigarete sa inkorporisanim filterom prema drugoj varijanti pronalaska.Figure 4 is a perspective view of a cigarette with an incorporated filter according to another embodiment of the invention.

- 4 Slike 1 i 2 prikazuju filter za cigarete , generalno označen sa brojem 10, prema pronalasku. Fliter 10 se sastoji od cilindričnog tela 12 okruženog omotačem 14. Omotač 14 se pruža uzdužno duž tela 12 od jednog kraja 16 tog tela do drugog kraja 18 koji nisu prekriveni omotačem 14 .- 4 Figures 1 and 2 show a cigarette filter, generally numbered 10, according to the invention. Flitter 10 consists of a cylindrical body 12 surrounded by a sheath 14. The sheath 14 extends longitudinally along the body 12 from one end 16 of that body to the other end 18 not covered by the sheath 14.

Telo 12 filtera je od poroznog materijala kao što je, na primer, vlaknasti ili penasti celulozni acetat ili bilo kojeg drugog materijala pogodnog za filtriranje duvanskog dima.The filter body 12 is made of a porous material such as, for example, fibrous or foamy cellulose acetate or any other material suitable for filtering tobacco smoke.

Fliter 10 dalje obuhvata više žljebova 20 formiranih u omotaču 14 i utisnutih u telo 12 filtera. Svaki od žljebova 20 je otvoren na svom kraju 22, koji se nalazi na kraju 16 tela 12 filtera,koji kraj ide prilikom pušenja u usta pušača. Zljebovi 20 se pružaju duž tela 12 filtera do rastojanja manjeg od dužine tog tela. Slike 1, 2 i 3 prikazuju četiri žljeba 20 jednako razmaknuta jedan od drugog.Flitter 10 further comprises multiple grooves 20 formed in the sheath 14 and embedded in the body 12 of the filter. Each of the grooves 20 is open at its end 22, which is located at the end 16 of the body 12 of the filter, which ends when smoking into the mouth of the smoker. The grooves 20 extend along the body 12 of the filter to a distance less than the length of that body. Figures 1, 2 and 3 show four grooves 20 spaced equally from one another.

Prilikom izrade filtera 10 omotač 14 može biti formiran integralno sa telom 12 ili može biti odvojena komponenta. Telo 12 filtera sa omotačem 14 se stavlja u kalup ili sličan uredaj radi utiskivanja na izabranim mestima žljebova 20.When designing filter 10, the sheath 14 may be formed integrally with the body 12 or may be a separate component. The body of the filter 12 with the sheath 14 is inserted into a mold or similar device for injection at selected groove locations 20.

Taj postupak se obično u proizvodnji cigareta naziva tehnikom toplotnog oblikovanja.This process is commonly referred to as the thermal molding technique in cigarette manufacturing.

Utisnuti delovi tj.udubljenja na omotaču 14 koji predstavijaju zidove žljebova 20 su nepropustljivi za vazduh dok je ostali deo omotača 14 u celini ili delimično propustijiv za vazduh. Zbog ovoga omotač 14 može biti od za vazduh propustljivog materijala kao što je vlaknasti ili penasti celulozni acetat. Zidovi žljebova 20 se tako obraduju da im se zatvore pore i da budu nep pusti ji vi za vazduh. To se može na primer postiči primenom toplote na omotač 14 tj.njegoveThe indentations, i.e. recesses, on the sheath 14, which represent the walls of the grooves 20, are airtight, while the rest of the sheath 14 is wholly or partially airtight. Because of this, the sheath 14 may be of air-permeable material such as fibrous or foam cellulose acetate. The walls of the grooves 20 are machined so that their pores are closed and that they are not leaky to the air. This can be achieved, for example, by applying heat to the sheath 14, ie its heat

- 5 delove koji čine zidove žljebova 20. Drugi način je da se ti zidovi prevuku u vodi nerastvorljivim materi jal ina kao što su etilceluloza ili u vodi rastvorljivim materijalom kao što je rodijum CMC ili metil celuloza i da se na taj način zatvore pore. Alternativno, omotač 14 može biti izraden od materijala nepropustljivog za vazduh kao što je , na primer, celulozni acetat sa zatvorenim čeli jama, a površine omotača 14 izvan žljebova 20 mogu biti izradene bilo od za vazduh propustljivog materijala ili se mogu načini ti mali otvori u tom delu omotača.- 5 parts that make up the groove walls 20. Another way is to coat these walls in water-insoluble materials such as ethylcellulose or in water-soluble material such as rhodium CMC or methyl cellulose and thus close the pores. Alternatively, the sheath 14 may be made of an airtight material such as, for example, cellulose acetate with closed foreheads, and the surfaces of the sheath 14 outside the grooves 20 may be made of either air-permeable material, or these small openings may be made in that part of the wrapper.

Telo 12 filtera je pričvrščeno za duvanski stub 24 pomoču završnog omotača 26 koji je postavljen oko tela 12 i omotača 14 tako da se formira cigareta 28 sa filterom. Završni omotač 26 je propustljiv za vazduh tako da ventilacioni vazduh prolazi kroz njega u žljebove 20, a takode i u telo 12 filtera kroz porozne delove omotača 14 izvan žljebove 20. Da bi se ovo omogučilo završni omotač 26 je izveden sa perforacijama 30 i 32.. Kao što je prikazano, perforacije 30 su u vezi sa žljebovima 20, a perforacije 32 su postavljene iznad poroznih delova omotača 14 izvan žljebova 20.The filter body 12 is attached to the tobacco pole 24 by means of an end wrapper 26 which is arranged around the body 12 and the wrapper 14 so as to form a filter cigarette 28. The end wrapper 26 is permeable to air so that the ventilation air passes through it into the grooves 20 and also into the body 12 of the filter through porous portions of the sheath 14 outside the groove 20. To allow this, the end wrapper 26 is made with perforations 30 and 32. As shown, the perforations 30 are in connection with the grooves 20, and the perforations 32 are positioned above the porous portions of the sheath 14 outside the grooves 20.

Kao što je prikazano, perforacije 30 su izvedene iznad zatvorenog kraja žljebova 20. Celishodno je da perforacije 30 bude po svojoj veličini i količini ventilacionog vazduha koji propuštaju iste ili veče od perforacija 32.As shown, the perforations 30 are made above the closed end of the grooves 20. It is appropriate that the perforations 30 be of their size and amount of ventilation air leaking the same or greater than the perforations 32.

Pri likom proizvodnje se može desiti da neke od perforacija 30 budu iznad površina omotača 14 koje su izmedu žljebova 20, u kom slučaju če i ove perforacije omogučavati dotok ventilacionog vazduha u telo 12 filtera.In the face of production, some of the perforations 30 may be above the surface of the sheath 14 which is between the grooves 20, in which case these perforations will allow ventilation air to flow into the body 12 of the filter.

Slika 4 prikazuju drugu varijantu filtera prema pronalasku označenu sa 110. Fliter 110 sastoji se od cilindričnog tela 112 i oko njega postavljenog omotača 114,koji se pruža od kraja 116 tela 112 do drugog kraja 118 istog tela takoFigure 4 shows a second variant of the filter according to the invention designated by 110. Flitter 110 consists of a cylindrical body 112 and a wrapper 114 placed thereon, extending from the end 116 of the body 112 to the other end 118 of the same body so

- 6 da su oba kraja tel a 112 sl obodna odn. nisu prekrivena omotačem.- 6 that both ends of the body are 112 sl circumferential or. they are not covered by the sheath.

Kao i kod filtera 10 i telo 112 filtera 110 je od poroznog materijala, a u omotaču 114 utisnuti u telo 112 su izvedeni žljebovi 120 sa otvorenim krajevima 122 i dužinom manjom od dužine filtera.As with filter 10, the body 112 of the filter 110 is made of porous material, and grooves 120 embedded in the body 112 have grooves 120 with open ends 122 and length less than the length of the filter.

Kod filtera 110 nisu samo zidovi žljebova 120 nepropustljivi za vazduh več i površine omotača 114 koje su izmedu žljebova 120. Medutim deo 123 omotača 114 na kraju 118 tela 112 filtera 110 je propustljiv za vazduh bilo tako što če biti od poroznog materijala ili sa perforacijama.With filter 110, not only the walls of the grooves 120 are impermeable to air but also the surfaces of the sheath 114 which are between the grooves 120. However, part 123 of the sheath 114 at the end 118 of the body 112 of the filter 110 is air permeable either by porous material or by perforations.

Kao i filter 10, filter 110 je za duvanski stub 24 pričvrščen pomoču završnog omotača 26 tako da formira cigaretu 28. Perforacije 30 su u vezi sa žljebovima 120 radi dovoda ventilacionog vazduha, a perforacije 32 su postavljene iznad poroznog dela 123 omotača 114 da bi se obezbedio dotok ventilacionog vazduha u telo 112 filtera.Like filter 10, filter 110 is attached to the tobacco column 24 by means of the end sheath 26 to form a cigarette 28. The perforations 30 are in connection with the grooves 120 to supply ventilation air, and the perforations 32 are positioned above the porous portion 123 of the sheath 114 to provided ventilation air to the filter body 112.

Kada pušač prilikom pušenja povuče dim na kraju 16 filtera 10, ventilacioni vazduh istovremeno biva uvučen kroz perforacije 30 u žljebove 20 i kroz perforacije 32 u telo 12 filtera preko porozne površine omotača 14 izvan žljebova 20. Ventilacioni vazduh koji je ušao u žljebove 20 odlazi direktno do otvorenog kraja 22 žljebova 20 bez mešanja sa dimom koji struji kroz telo 12 filtera zato što su zidovi žljebova 20 neporozni.Ventilacioni vazduh koji ulazi u telo 12 filtera kroz perforacije 32 meša se i razblažuje dim koji struji kroz telo 12 filtera iz duvanskog stuba 24.When the smoker draws smoke at the end 16 of the filter 10 during smoking, the ventilation air is simultaneously drawn through the perforations 30 into the grooves 20 and through the perforations 32 into the filter body 12 across the porous surface of the sheath 14 outside the grooves 20. The venting air entering the grooves 20 goes directly to the open end 22 of the grooves 20 without mixing with the smoke flowing through the body of the 12 filters because the walls of the grooves 20 are non-porous. The ventilation air entering the filter body 12 through the perforations 32 is mixed and diluted by the smoke flowing through the body of the 12 tobacco pipe filters 24 .

Gornji opis je dat radi ilustracije i objašnjenja pronalaska bez namere da se time ograniči obim zaštite pošto su modifikacije moguče bez odstupanja od suštine pronalaska.The above description is provided to illustrate and explain the invention without the intention of limiting the scope of the protection since modifications are possible without departing from the spirit of the invention.

Claims (2)

Patentni zahteviPatent claims 1. Filter za cigarete, koji se sastoji od poroznog,cilindričnog tela 12,112) okruženog omotačem 14,114, koji se pruža uzduž tog tela tako da su krajevi 16,18,116,118 otvoreni, i završnog omotača 26,koji spaja telo filtera sa duvanskim stubom 24, n a z n a č e n time, što su u poroznom omotaču (14)izvedeni nepobozni i za vazduh nepropustljivi žljebovi (20) uzdužno utisnuti u telu (12) filtera (10), pri čemu je njihova dužina manja od dužine tela (12), što su žljebovi (20) otvoreni na svom jednom kraju (22),koji se nalazi na kraju (16) tela (12) filtera, što je završni omotač (26) izveden sa perforacijama(30),koje su iznad žljebova (20) i perforacijama (32),koje su iznad poroznih delova omotača (14) izvan žljebova (20).Cigarette filter, consisting of a porous cylindrical body 12,112) surrounded by a wrapper 14,114 extending along the body so that the ends 16,18,116,118 are open, and the end wrapper 26, which connects the filter body with the tobacco pole 24, Moreover, in the porous sheath (14), non-obscure and airtight grooves (20) are longitudinally embedded in the body (12) of the filter (10), the length of which is less than the length of the body (12), being grooves (20) open at one end (22), which is located at the end (16) of the body (12) of the filter, which is the end sheath (26) made with perforations (30) above the grooves (20) and perforations ( 32), which are above the porous portions of the sheath (14) outside the grooves (20). 2. Filter za cigarete prema zahtevu 1 i varijanti I, naznačen time, što je izmedu duvanskog stuba (24) i neporoznog omotača (114) postavljen oko tela (112) porozni ili perforirani deo (123) omotača (114) iznad kojeg su perforacije (32) u završnom omotaču (26).Cigarette filter according to claim 1 and variant I, characterized in that a porous or perforated portion (123) above the perforations is arranged between the tobacco column (24) and the non-porous wrapper (114) around the body (112). (32) in the end wrap (26).