Cigarette filter - wikipedia Cigarette filter Filters in a new and used cigarette Filter cigarette : Cigarette filter Imitation cork tip paper Cigarette paper Tobacco Capsule ( optional, not shown ) Ink ( not shown ) Glue ( not shown ) A cigarette filter is a component of a cigarette, along with cigarette paper, capsules and adhesives. 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 ). Filters can reduce `` tar '' and nicotine smoke yields up to 50 %, with a greater removal rate for other classes of compounds ( e.g., phenols ), but are ineffective in filtering toxins such as carbon monoxide. Most factory - made cigarettes are equipped with a filter ; those who roll their own can buy them from a tobacconist. Contents 1 History 2 Manufacture 3 Health risks 3.1 Light cigarettes 4 Safety 5 Litter 6 See also 7 References History In 1925, Hungarian inventor Boris Aivaz patented the process of making a cigarette filter from crepe paper. From 1935, a British company began to develop a machine that made cigarettes incorporating the tipped filter. It was considered a speciality item until 1954, when manufacturers introduced the machine more broadly, following a spate of speculative announcements from doctors and researchers concerning a possible link between lung diseases and smoking. Since filtered cigarettes were considered `` safer '', by the 1960s, they dominated the market. Production of filter cigarettes rose from 0.5 percent in 1950 to 87.7 percent by 1975. Between the 1930s and the 1950s, most cigarettes were 70 mm ( ~ 2 3 / 4 in ) long. The modern cigarette market includes mainly filter cigarettes that are 80 mm ( in boxes ; ~ 3 1 / 8 in ), 85 mm ( in softpack ; ~ 3 3 / 8 in ), 100 mm ( ~ 3 15 / 16 in ), or even 120 mm ( ~ 4 3 / 4 in ) long. Manufacture Spent cigarette filter Cellulose acetate is made by esterifying bleached cotton or wood pulp with acetic acid. Of the three cellulose hydroxy groups available for esterification, between two and three are esterified by controlling the amount of acid ( degree of substitution ( DS ) 2.35 - 2.55 ). The ester is spun into fibers and formed into bundles called filter tow. Flavors ( menthol ), sweeteners, softeners ( triacetin ), flame retardants ( sodium tungstate ), breakable capsules releasing flavors on demand, and additives colouring the tobacco smoke may be added to cigarette filters. The five largest manufactures of filter tow are Hoechst - Celanese and Eastman Chemicals in the United States, Solvay ( Rhodia Acetow ) in Germany, Daicel and Mitsubishi Rayon in Japan. Starch glues or emulsion - based adhesives are used for gluing cigarette seams. Hot - melt and emulsion - based adhesives are used for filter seams. Emulsion - based adhesives are used for bonding the filters to the cigarettes. Health risks Main article : Health effects of tobacco In the 1970s epidemiologic evidence relative to tobacco - related cancers and data for coronary heart disease indicated a reduced risk among filter smokers for these diseases. Between 1970 and 1980 some studies showed a 20 - 50 % reduction in risk of lung cancer for long - term smokers of filtered cigarettes as compared to smokers of non-filtered cigarettes ( IARC, 1986 ) but later studies indicated a similar risk for lung cancer in smokers of filtered and non-filtered cigarettes. Various add - on cigarette filters ( `` Water Pik '', `` Venturi '', `` David Ross '' ) are sold as stop - smoking or tar - reduction devices. The idea is that filters reduce tar - nicotine levels permitting the smoker to be weaned away from cigarettes. Light cigarettes Main article : Lights ( cigarette type ) The tobacco industry has reduced tar and nicotine yields in cigarette smoke since the 1960s. This has been achieved in a variety of ways including use of selected strains of tobacco plant, changes in agricultural and curing procedures, use of reconstituted sheets ( reprocessed tobacco leaf wastes ), incorporation of tobacco stalks, reduction of the amount of tobacco needed to fill a cigarette by expanding it ( like puffed wheat ) to increase its `` filling power '', and by the use of filters and high - porosity wrapping papers. However, just as a drinker tends to drink a larger volume of beer than of wine or spirits, so many smokers tend to modify their smoking pattern inversely according to the strength of the cigarette being smoked. In contrast to the standardized puffing of the smoking machines on which the tar and nicotine yields are based, when a smoker switches to a low - tar, low nicotine cigarette, they smoke more cigarettes, take more puffs and inhale more deeply. Conversely, when smoking a high - tar, high - nicotine cigarette there is a tendency to smoke and inhale less. A cigarette butt littered on the ground In spite of the changes in cigarette design and manufacturing over the last 50 years, the use of filters and `` light '' cigarettes neither decreased the nicotine intake per cigarette, nor lowered the incidence of lung cancers ( NCI, 2001 ; IARC 83, 2004 ; U.S. Surgeon General, 2004 ). The shift over the years from higher - to lower - yield cigarettes may explain the change in the pathology of lung cancer. That is, the percentage of lung cancers that are adenocarcinomas has increased, while the percentage of squamous cell cancers has decreased. The change in tumor type is believed to reflect the higher nitrosamine delivery of lower - yield cigarettes and the increased depth or volume of inhalation of lower - yield cigarettes to compensate for lower level concentrations of nicotine in the smoke. Structure formula of cellulose diacetate with one of the acetate groups on the cellulose backbone shown by the red circle. Safety Cellulose acetate is non-toxic, odorless, tasteless, and weakly flammable. It is resistant to weak acids and is largely stable to mineral and fatty oils as well as petroleum. It is biodegradable and the raw material is a renewable natural polymer expected to find application for other uses in the future. Smoked cigarette butts contain 5 -- 7 mg ( ~ 0.08 - 0.11 gr ) nicotine ( about 25 % of the total cigarette nicotine content ), children ingesting > 2 whole cigarettes, 6 cigarette butts or a total of 0.5 mg / kg ( ~ 0, 0035 gr / lbs ) of nicotine should be admitted to a hospital. Cellulose acetate is hydrophilic and retains the water - soluble smoke constituents, of which many are irritating ( acids, alkali, aldehydes, and phenols ), while letting through the lipophilic aromatic compounds. Smoked cigarette butts and cigarette tobacco are toxic to water organisms such as the marine topsmelt ( Atherinops affinis ) and the freshwater fathead minnow ( Pimephales promelas ). Atmospheric moisture, gastric acid, light, and enzymes hydrolyze cellulose acetate to acetic acid and cellulose. Cellulose may be further hydrolyzed to cellobiose or glucose in an acidic medium, and eventually form valuable humus. Humans can not digest cellulose and excrete the fibers in feces, because, unlike ruminant animals, termites, and some bacteria and fungi, they lack cellulolytic enzymes such as cellulase. Like wood, paper and cotton, cigarette filters in soil rot slowly over months to years. Litter Cigarette butts contain hazardous chemicals such as cadmium, arsenic, lead, copper, and various PAHs, that are partially filtered out during smoking. Cigarette butts are the most common form of anthropogenic ( man - made ) litter in the world, as approximately 5.6 trillion cigarettes are smoked every year worldwide. Of those it is estimated that 4.5 trillion cigarette butts become litter every year. The cellulose acetate fibers used as the predominant filter material do not readily biodegrade because of the acetyl groups on the cellulose backbone which in itself can quickly be degraded by various microorganisms employing cellulases. A normal life span of a discarded filter is thought to be up to 15 years. Many governments have sanctioned stiff penalties for littering of cigarette filters ; for example Washington state imposes a penalty of $1,025 for littering cigarette filters. Another option is developing better biodegradable filters, much of this work lies heavily on the research in the secondary mechanism for photodegradation as stated above. The next option is using cigarette packs with a compartment to discard cigarette butts in, implementing monetary deposits on filters, increasing the availability of butt receptacles, and expanding public education. It may even be possible to ban the sale of filtered cigarettes altogether on the basis of their adverse environmental impact. Recent research has been put into finding ways to utilizes the filter waste, to develop a desired product. One research group in South Korea have developed a simple one - step process that converts the cellulose acetate in discarded cigarette filters into a high - performing material that could be integrated into computers, handheld devices, electrical vehicle and wind turbines to store energy. These materials have demonstrated superior performance as compared to commercially available carbon, graphene and carbon nano tubes. The product is showing high promise as a green alternative for the waste problem. Another group of researchers has proposed adding tablets of food grade acid inside the filters. Once wet enough the tablets will release acid that accelerates degradation to around two weeks ( instead of using cellulose triacetate and besides of cigarette smoke being quite acidic ). See also Cigarette holder Hookah Bong List of additives in cigarettes Tobacco smoking References Jump up ^ Francois de Dardel ; Thomas V. Arden ( 2007 ), `` Ion Exchangers '', Ullmann 's Encyclopedia of Industrial Chemistry ( 7th ed. ), Wiley, pp. 1 -- 74, doi : 10.1002 / 14356007. a14_393 Jump up ^ Seymour S. Chissick ( 2007 ), `` Asbestos '', Ullmann 's Encyclopedia of Industrial Chemistry ( 7th ed. ), Wiley, pp. 1 -- 18, doi : 10.1002 / 14356007. a03_151 Jump up ^ T.C. 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Schwartz ( 1977 ), `` Smoking Cures : Ways to Kick an Unhealthy Habit '', in Murray E. Jarvik ; Joseph W. Cullen ; Ellen R. Gritz ; Thomas M. Vogt ; Louis Jolyon West, Research on Smoking Behavior ( PDF ), NIDA Research Monograph, 17, pp. 308 -- 336 Jump up ^ Michael A.H. Russell ( 1977 ), `` Smoking Problems : An Overview '', in Murray E. Jarvik ; Joseph W. Cullen ; Ellen R. Gritz ; Thomas M. Vogt ; Louis Jolyon West, Research on Smoking Behavior ( PDF ), NIDA Research Monograph, 17, pp. 13 -- 34 Jump up ^ Anthony J. Alberg ; Jonathan M. Samet ( 2010 ), `` Epidemiology of Lung Cancer '', in Robert J. Mason ; V. Courtney Broaddus ; Thomas R. Martin ; Talmadge E. King, Jr. ; Dean E. Schraufnagel ; John F. Murray ; Jay A. Nadel, Murray and Nadel 's Textbook of Respiratory Medicine, 1 ( 5th ed. ), Saunders, ISBN 978 - 1 - 4160 - 4710 - 0 Jump up ^ Neal L. Benowitz ; Paul G. Brunetta ( 2010 ), `` Smoking Hazards and Cessation '', in Robert J. Mason ; V. Courtney Broaddus ; Thomas R. 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( 2009 ). `` Cigarettes butts and the case for an environmental policy on hazardous cigarette waste ''. International Journal of Environmental Research and Public Health. 6 : 1691 -- 705. doi : 10.3390 / ijerph6051691. Jump up ^ `` The world litters 4.5 trillion cigarette butts a year. Can we stop this ? ''. The Houston Chronicle. Retrieved 2014 - 09 - 16. Jump up ^ Frederic Beaudry ( 2017 ). `` Are Cigarette Butts Biodegradable ? ''. Jump up ^ Aaron Cantú ( 2014 ). `` New ' Green ' Cigarette Butts Biodegrade Within Days -- And Can Even Sprout Into Grass - The company Greenbutts is manufacturing a new filter to address most common litter problem ''. alternet.org. Jump up ^ `` Accidents, fires : Price of littering goes beyond fines ''. Washington : State of Washington Department of Ecology. 2004 - 06 - 01. 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Question: when did filtered cigarettes come on the market
Answer: 1935