Tobacco Documents Online

Details percentage of free and bound nicotine, and smoke pH for Kent III and experimental low-tar cigarettes.

Reports on a study involving the measurement of carbonyl sulphide in mainstream and sidestream cigarette smoke using three different methods: an electron capture detector; mass spectrometry; and a Beckman carbon monoxide infrared analyzer. Notes that an electron capture detector seemed to be best suited for carbonyl sulphide measurement. Discusses material and methods, noting that measurements were taken of mainstream smoke from three different commercial cigarette brands and three experimental cigarettes. Notes that in commercial cigarette brands carbonyl sulphide concentrations were 25-30 ppm for mainstream smoke while they were 25-60 ppm for the experimental cigarettes; measurements on commercial cigarette sidestream smoke were eight to ten times lower than in mainstream smoke. Includes results and discussion. Attaches figures, tables, and references.

Invention disclosure by Raymond Lee Organization for cigarette mouthpiece which increases filtration efficiency when pressure is apllied to the filter.

Special report compiles the chemistry and characteristics of menthol cigarettes and summarizes major R&D projects. States this report elucidates the current [1980] understanding of menthol and provides references to literature and internal reports.

Set of charts detailing the effects of filter, porosity, puff frequency, and blends on smoke delivery.

States ultra-low or low yield male smokers have significantly higher plasma cotinine levels when they smoke Barclay cigarettes than when they smoke Now cigarettes. Finds subjects that smoke 1 mg FTC 'tar' cigarettes have cotinine levels similar to Vantage, while subjects that smoke a 7 to 12 mg FTC 'tar' cigarette have cotinine levels higher than Vantage. Says these data indicate Barclay yields are equivalent to Vantage and rejects the hypothesis that Barclay smokers receive the same delivery as smokers of Ultra-Low brands.

Describes a new concept for a cigarette that would combine characteristics of "health" cigarettes with those of full-flavor cigarettes. The new cigarette would vary its delivery levels. It would give higher TPM at the beginning and less TMP towards the end of the cigarette. This would offset the increase in harshness as a smoker approaches the end of the cigarette and would "satisfy" the smoker "since a smoker essentially acquires this satisfactin during the early puffs and it will also reduce the last portion per puff tar inhaled." It aimed to be a reduced tar but full-flavored cigarette.

Describes testing, current products and other approaches to fire safe cigarettes. Testing on Marlboro and Winston smokers revealed that they found the prototype cigarettes lower in acceptability. Models for both Parliament and Benson and Hedges found models with normal citrate gave reduced mass burn rates but increased tar and puff counts. Other approaches will include putting DAP on filler, putting IS in blend and putting phosphate paper on low density rods. Plans for the rest of 1988 are also laid out.

Indicates per puff delivery is a function of butt length when data analysis utilizes an experimental computer program [PUFFER]. Describes collection methods, discusses data analysis and presents detailed tables of deliveries. Suggests preliminary findings are in conflict with published results regarding the correlation between delivery and butt length, recommends omitting the final one or two puffs and says additional research is needed.

Reports the relationship between nicotine yields and nicotine uptake in four groups of smokers. Defines these groups as: 1 mg 'tar', ultra-low 'tar' [ULT], full flavor low 'tar' [FFLT] and full flavor [FF] smokers. States subjects smoked their usual brands and submitted urine samples for measuring urinary metabotiles and nicotine. Reports lower yield cigarette smoker's nicotine uptake per day and nicotine per cigarette are lower and states "These data suggest that nicotine uptake is a function of individual smoking behavior within specified "tar" categories." Indicates FTC yield can be used as a predictor of "nicotine uptake by smokers who select cigarettes with a particular FTC "tar" yield."