468 



4,836,224 



15 16 



order to provide a nicotine content of «bout 3.92 per- FXAMPI F ? 

 cent to the cigarette. The nicotine/ethanol mixture is 



incorporated into the tobacco rod by inserting a syringe Cigarettes having a high nicotine content and incor- 

 into the lighting end of the rod and slowly pulling the porating varying amounts of the levulinic acid are pro- 

 syringe from the rod while injecting the mixture into 5 vided using the following procedure, 

 the rod. Cigarettes having lengths of about 84 mm and cir- 



Sample No. 7 is provided by injecting about 10 mg of cumferences of about 24.85 mm have tobacco rod 



the previously described 1:1 mixture of ethanol nicotine lengths of 57 mm and filter element lengths of 27 mm. 



into a cigarette designated as Sample No. 6 using a The tobacco rod includes a charge of tobacco cut filler 



syringe in the manner previously described. The ciga- 10 weighing about 0.76 g contained in a circumscribing 



rette so provided comprises a nicotine levulinale addi- cigarette paper wrap which is sold commercially as 854 



tive as well as an exogenous nicotine additive. Cigarette Paper by Ecusta Corp. The filter element is 



The various cigarettes are smoked under FTC condi- manufactured using conventional cigarette filler mak- 



tions. Data concerning (i) FTC "tar," FTC nicotine and ing technology from cellulose acetate low (2. 1 denier 



FTC carbon monoxide, (ii) the "tar'Vnicotine ratio, (iii) 15 per filament, 48,000 total denier) and circumscribing air 



cigarette nicotine content, and (iv) puff count for Sam- permeable paper plug wrap having a CORESTA poros- 



ple Nos. 4-6 and C-2 are presented in Table II. In addi- ily of 26,000 cm/min. The tobacco rod and filter ele- 



tion, data concerning the pH of the mainstream aerosol meni are aligned in an abutting, endto-end relationship 



for Sample Nos. 4-6, C-2 and C-3 are presented in Table and secured together using porous (air permeable) tip- 



II. 20 ping paper. The tipping paper is adhesively secured to 



TABLE II 



'Not *n curaple of the tnv<ntk)A. 



'"*Se« Table I. Cooinota 1-4. reapectiv^y. 



Hmoke pH b «$«terfnined mini the techniqua dneribed in the Setttabaugli ei tl refermce. Mtpn Tlic prrvntcd (Hmmum and matimum pH valoe 



tor cacH cigarclle an Ihc calculaicp average of pef.pvP oiinlmitTti and euainiiHn valuo obtained lot a number of pulTt per aiareiie. For Sample 



Noa. 4, 5 and C-2. the number orpnftl loed to olcclale the average pH vaJoea s ^ For Sample Not 6 and C- 1. the number of pafTt aaed to calculate 



the avenge pH valuea a 6. 



35 the filler element and the adjacent portion of the to- 

 bacco rod. The tipping material circumscribes the 

 length of the filter element and about 4 mm of the length 



The data in Table II indicate that the various ciga- of the tobacco rod. Cigarettes so described are manu- 

 rettes have incresed nicotine contents and exhibit in- factured using a Pilot Cigarette Maker from Hauni- 

 creased FTC nicoline values as the level of l-nicotine 40 Werke Korber & Co. KG. A nng of mechanically pro- 

 levulinate is increased. In addition, the FTC "tar" lo vided perforations extends around the periphery of the 

 nicoline ratios for the samples decrease as the level of cigarette about U mm from the extreme mouthend 

 1-nicotinelevulinateisincreased. The various cigarettes thereof TTie perforations so provided yield cigarettes 

 each exhibit similar "tar" deliveries, carbon monoxide which are 75 percent air diluted. The cigarettes so man- 

 deliveries and puff counts. Further, the samples of the 45 ufactured are designated Sample Nos. 8, 9, 10 and C-4, 

 invention (i.e., Sample Nos. 4-6) exhibit a pH of the corresponding to Ihe sample of filler material from 

 whole smoke lower than that of the sample not having which each cigarelte is manufactured. ■ 

 the exogenous nicotine/organic acid salt (i.e., Sample The filler material employed in providing Ihe tobacco 



No. C-2). In addition, Ihe pH of the whole smoke of rod Is in the form of strands cut at about 32 cuts per 

 Sample No. C-3 is very much higher than that of any of 50 inch. The initial filler material includes a blend of about 

 the other samples. 40 percent Burley tobacco having a nicotine content of 



Evaluations of the organoleptic properties of Sample about 5 percent, about 18 percent flue-cured tobacco 

 Nos. 5, 6 and C-} indicate that the cigarette having having a nicoline content of about 3.5 percent, about 30 

 about 10 percent salt additive (i.e.. Sample No. 6) exhib- percent reconstituted lobacco material having anicoline 

 its greater impact and smoothness as well as less harsh- 55 content of about 0.5 percent, and 12 percent of an Ori- 

 ness than the cigarette not having the salt additive (i.e., ental lobacco blend having a nicotine content of about 

 Sample No. C-2). All cigarettes sampled provide good 0.9 percent. The blend has an aqueous casing of glycerin 

 tobacco taste and do not exhibit a perceivable chemical and flavors applied thereto. 



off-taste or non-cigarette taste. Surprisingly, Sample Four lots of the cut filler blend, each lot weighing 



No. 5 is not significantly different organoleplically from 60 2,000 g on a dry weight basis, are provided. The first lot 

 Sample No. C-2 in terms of impact, smoothness, harsh- is treated with 120 g of the levulinic acid additive. The 

 ness and overall taste even though the sample provides second lot is treated with 280 g of the levulinic acid 

 a higher level of FTC nicotine than the comparative additive. The third lot is treated with 400 g of the levu- 

 sample. Sample No. C-3 is extremely harsh and is nol linic acid additive. The fourth lot Is not treated with the 

 palauble. However. Sample No. 7 surprisingly exhibits 65 levulinic acid additive and is employed for comparison 

 a smooth smoking character and is palatable, even purposes. 



though Ihe sample has a relatively high level of exoge- The levulinic acid additive is applied to cut filler as a 



nous nicotine incorporated therein. spray using a hand sprayer as a mUture of water and 



