Tobacco Documents Online

TC1216r/W66N401 BACKGROUND In attempts to substantiate their allegatilons that channel ventilated ciigarettes are miislealdingly described as low TAR' cigarettes, Philip Morris has put forward several laboratory studies - by US'Testing, Laboratories, by Fresenius Laboratory and by Dr J D Aubort. These accusations will be refuted in turn but, first it is appropriate to describe the actioni of the ACTRON filter, the novel development which enhances taste and flavour characteristics of low, tar cigarettes. The Patent is given as document N4'1. A'series of photographs which illustrate the difference between cigarettes containing the Actron filter and'other cigarettes of varying ventilation are given in N42. A normal, unventilated filter cigarette, when puffed~ delivers a dense. cylindrical stream of smoke (iPhoto A). With increasing ventilation of a conventional type (filter perforations), the streamiof smoke becomes more attenuated and narrower until, with a low, tar (1rng) eigarette, the stream is a thin pencil of very attenuated smoke (Photos B, C). As the width of the smoke stream becomes narrower and the smoke density becomes thinner, consumers report a greatly dtiminishedisensory response in the mouth and' claiim to find the attenuated' smoke less sati'sfyingi. TheACTRON, filter prov~id'esa, siimillard'egree ofve~nt~ilation as& low, tar cigarette, but delivers t'he diluting air through a number of peripheral channels thereby inducing turbulence in the smoke issuing at the mouth, end' of the filter (photo D). The aerodynamic principles underlying the production of smoke turbulence are dascri'.bed in a mat'hematical' paper by Baker, Orzechowski' and Stungis (N72). ../..

/2 (I As a result of the smoke turbulence produced by the ACTRON fillite , human smokers report greater mouthisensation, due to spatial summation, equal to that given by a conventionallly ventilated cigarette of a, nominally higher TAR delivery.. That Philip Morris were already aware of the sensory advantages conferred by smoke turbulence in the mouth ("smoke swirll") is attested by statements i'n two of their patents. .(US Patent 3490461, iissued' Jan 20 1970, andlUS Patent 4331166, issued May 25 1982) These are included as N43 and N44. I't is therefore difficult to appreciate or comprehenditheir questioning a comparable ciiaim for the ACTRON filter, other than on commercia1 and competitive grounds. dated 11th July 1985 and signed by the Oirector General of Philip Their attitude is further difficult to understand si!nce in a letter l~~- is ~ lj~ rxW Morris France they state "We must insist that you only publisfi the 11 . results registered following the standard methodi ISO 3308"'. This JL,,, k-V-- letter is givenias N45. eA~~