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Light Scattering Intensity and Viscosity Correlation for the Letters Printed on the Tobacco Cigarettes

Authors:

PM Jayaweera ,

Dept. of Chemistry, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka, LK
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C Pathiraja,

Ceylon Tobacco Company, No. 178, Colombo 01500, Sri Lanka, LK
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RMSP Rajapaksha

Dept. of Chemistry, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka, LK
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Abstract

The quality of the letters printed on the tobacco cigarettes, brand name "John PlayerTM" is found to be viscosity dependent on the ink used for printing. The viscosity changes of the ink used, cause the printed letters to be smudged and of poor quality. At present selection of bad quality prints are done by visual identification, as no scientific technique is available. We have developed a light scattering technique using a 632.8 nm 20 mW He-Ne laser system to correlate the scattering intensity with the viscosity of the ink used, LogoRed TC2582. As a result, a standard has been assigned and quality of the cigarette prints can be maintained during the manufacturing process.  

doi:10.4038/sljp.v6i0.196

Sri Lankan Journal of Physics, Vol. 6 (2005) 1-6

How to Cite: Jayaweera, P., Pathiraja, C. & Rajapaksha, R., (2005). Light Scattering Intensity and Viscosity Correlation for the Letters Printed on the Tobacco Cigarettes. Sri Lankan Journal of Physics. 6, pp.1–6. DOI: http://doi.org/10.4038/sljp.v6i0.196
Published on 15 Dec 2005.
Peer Reviewed

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