- Detalles de la revista
- Formato
- Revista
- eISSN
- 2719-9509
- Publicado por primera vez
- 01 Jan 1992
- Periodo de publicación
- 4 veces al año
- Idiomas
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- Acceso abierto
Cigarette Smoke Composition in Correlation to Tobacco Type / Über die Zusammensetzung des Cigarettenrauches und ihre Abhängigkeit von der Tabaksorte
Páginas: 1 - 13
Resumen
The author examines the dependence of the nitrogen, sugar and nicotine contents of tobacco, of the cigarette smoke yield of condensate, nicotine, benzopyrene and phenols, and of the nicotine and phenol retention by cellulose acetate filters on type and place of origin of the tobacco. 11 varieties of different origin of Burley, Virginia and Oriental tobaccos serve as examples
- Acceso abierto
Correlations between Main Tobacco Components and Smoke Condensate Yields / Beziehungen zwischen den Hauptbestandteilen des Cigarettentabaks und den Rauchkondensaten
Páginas: 15 - 18
Resumen
Cigarettes with similar parameters were made from various tobaccos of definite types and sources. These were chemically defined according to nicotine, total reducing substances, soluble carbohydrates, polyphenols, total nitrogen, protein nitrogen, total ash, ethanol extractible substances, resins, ''wax'', and raw fiber. The smoke condensate was also determined. The following results were obtained from 17 different kinds of tobacco:
1. A positive correlation between the resin content in the leaf and smoke condensate yield. Calculations gave a coefficient of correlation (r) of 0.69 (statistical significant (99 %)).
2.The same positive correlation, with a coefficient of correlation of 0.63 (statistical significant (99 %)), was found in relation to the nicotine content of the leaf.
3. Other substances determined in the leaf do not seem to be tied to smoke condensate yield.
4. The same conclusions are valid when the smoke yield is measured in tars soluble in chloroform
- Acceso abierto
Determination of the Free Burning Rate of Cigarettes / Zur Bestimmung der Glimmrate von Cigaretten
Páginas: 19 - 24
Resumen
A method to determine the free burning rate of cigarettes is described. After conditioning the cigarettes are ignited one by one with an electrical heating device and then placed, in vertical position, in boxes of sheet metal and with sliding glass windows. Thus each cigarette is protected from draughts or from heat given off by adjacent cigarettes. A system of holes in the bottom and cover of the boxes permits the necessary air renewal. The time required for the free burning of a given length is determined visually with the aid of a stopwatch. The result of the test is expressed as the weight of tobacco burned per minute and per cigarette. As indicated by results presented in the paper, the method is suited for quality control work involving machine made cigarettes, as well as for the evaluation of different tobacco samples or cigarette papers. If certain precautions are met, the test can also be applied to hand-made cigarettes. The free burning rate was found to be largely determined by the kind of paper and the type of tobacco used. On the other hand, no decisive influence of the arrangement of the tobacco shreds within the cigarette could be observed as long as normally filled cigarettes were used for the tests
- Acceso abierto
Examination of Tobacco Hygroscopicity / Über die Hygroskopizität des Tabaks
Páginas: 25 - 38
Resumen
The present paper shows the detectable factors on which a sorption isotherm depends. Even if it is well-known that a sorption isotherm is most essentially conditioned by influences of the respective tobacco variety, other factors, such as temperature, initial moisture content, or fibre dimension, play a part as well. In general, a sorption isotherm constitutes a ''summation'' of such factors and, in the end, a combination of desorption and adsorption if the tobacco is dried or moistened from the average commercial moisture content. The tobacco hysteresis is experimentally investigated and discussed
- Acceso abierto
The Influences of Cutting Temperature on the Filling Value of Cut Tobacco and on the Compressibility of Cigarettes / Der Einfluss verschiedener Temperaturen beim Schneiden von Blattabak auf das Füllvermögen von Schnittabak und die Kompressibilität von Cigaretten
Páginas: 39 - 44
Resumen
The influences of the cutting temperature on the filling value and elasticity of a bright blend as well as on the compressibility and elasticity of cigarettes made of the same blend are investigated. A low cutting temperature of about 25°C (as against 40°C) gives a more elastic cut tobacco presenting a better filling value. Cigarettes made with cold cut tobaccos have clearly less compressibility and elasticity, i.e. they are more compact. The distribution of strand dimensions remains unchanged in the two cutting temperatures. In neither case is there any tendency towards sticking
- Acceso abierto
The Filling Value of Cigar Tobacco: Examination of Different Cutting Widths of Cigarillo Filling Tobacco / Die Füllfähigkeit von geschnittener Zigarreneinlage: Ergebnisse einer Untersuchung von Zigarillos mit Einlagen verschiedener Schnittbreiten
Páginas: 45 - 58
Resumen
For the purpose of producing cigarillos of optimum filling value measurements have been taken by two instruments, i.e. the impact volumeter and the Borgwaldt compressimeter, in order to examine whether the respective methods are suitable for cigar tobacco. The authors intended to determine the optimum width of cut for the filling of cigarillos as well as the optimum weight conditioned by the width of cut under the different circumstances. The measurements were taken with widths of cut of 1, 1 ½, 2, 2 ½ and 3 millimetres. The data furnished by the two instruments showed a relation between width of cut and filling capacity. The measurements taken by means of the compressimeter were more precise than those taken by the impact volumeter. Allowance has to be made, however, for the fact that the conditions to which the tobacco is exposed in both instruments are not the same as those of manufactured cigarillos. There is a relation between the distribution of strand dimensions of cut tobacco and the compression volume. The compression volume increases with increasing proportions of coarse particles and decreases with increasing proportions of fine particles. Subjective manual estimation of the filling capacity by experienced examiners corresponds fairly to the results obtained by mechanical determination
- Acceso abierto
Determination of the Properties of French Tobaccos / Systematische Untersuchung der Kennwerte der französischen Tabake
Páginas: 59 - 62
Resumen
Every year the Regie Française specifies the properties of the French tobaccos harvested for the current production. The author describes procedures and practical measures by which the filling value of the different tobacco samples composed at the planters' when purchased is determined
- Acceso abierto
An Apparatus for the Manufacture of Sample Cigarettes out of Small Quantities of Cut Tobacco / Eine industrielle Methode zur Herstellung von Versuchscigaretten aus kleinen Mengen von Schnittabak
Páginas: 63 - 66
Resumen
The described apparatus is suitable for the rapid manufacture of some thousands of cigarettes out of some kilogrammes of tobacco. The experiments proved that it is possible to produce cigarettes mechanically even out of 600 grammes of tobacco. Remainders are to a great extent avoided by the small capacity of the spreader. The use of the device in question together with the most modern machines results in extremely favourable weight dispersions, which enables an eventually necessary selection by severe standards to be made
- Acceso abierto
The Function of Nucleonic Controllers in Cigarette Machines - Über die Auswirkungen von nukleonischen Steuerungen an Cigarettenstrangmaschinen
Páginas: 67 - 73
Resumen
The function of nucleonic controllers in cigarette machines is briefly described. Improvements in the quality of the final product brought about by application of the system as well as resulting economic profits are examined. The efficiency of the protective screen against radiation is discussed
- Acceso abierto
An Automatic Smoking Machine for Rapid Series Analyses and for the Preparative Collection of Smoke Condensate: Part I and II / Eine automatische Schnellrauchmaschine für Serienanalysen und für die präparative Gewinnung von Rauchkondensaten: Teil I und II
Páginas: 74 - 82
Resumen
Modifications were made to the automatic smoking machine for rapid series analyses which is now suitable for the smoking of 30 cigarettes. The efficiency of the generator producing the electrostatic field is adapted to the requirements of the new device. The results obtained by 4-year routine examinations are satisfactory. The results furnished by the smoking of larger quantities of non-selected cigarettes are nearly as good as those obtained by the smoking of a smaller number of selected cigarettes
- Acceso abierto
Remarks about Corrections of Regulations for the Determination of Nicotine / Bemerkungen zur Korrektur der Vorschrift für die Nikotinbestimmung
Páginas: 83 - 85
Resumen
1. Dekadische Absorptionskonstante
2. Gravimetrische Bestimmung mit Kieselwolframsaeure
3. Säure für die Vordestillation
4. Filterwirkung
- Acceso abierto
Standardized regulations for the analysis of tobacco and tobacco smoke / Einheitliche Vorschriften für die Analyse von Tabak und Tabakrauch
Páginas: 87 - 89
Resumen
4. Vorschrift für die Bestimmung des Nikotins im Tabak, im Tabakrauchkondensat und in Filtern
4.1 Bestimmung des Nikotins im Tabak
4.2 Bestimmung des Nikotins im Tabakrauchkondensat
4.3 Bestimmung des Nikotins in Cigarettenfiltern