Oil detection process, apparatus and taggant therefor
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United States of America Patent
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Jan 17, 2017
Grant Date -
Feb 19, 2015
app pub date -
May 29, 2012
filing date -
May 26, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A process for detecting oil or lubricant contamination in a manufactured product (C), preferably a cigarette (C), the process comprising adding a fluorescent taggant to oils or lubricants contained in processing machinery for said product (C), conveying (131) said product (C) past an infrared detection apparatus (140), irradiating said product (C) with infrared radiation from said detection apparatus (140) as it passes the detection apparatus (140), and detecting infrared radiation emitted from said irradiated product (C). The taggant can be in the form of a composition containing a Stokes-shifting taggant, which absorbs radiation at a first wavelength and emits radiation at a second wavelength, different from said first wavelength, dissolved or dispersed in an oil or lubricant.
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International Classification(s)
- C09K:MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED ....
- A24B:MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING ....
- B07C:POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BU....
- C10M:LUBRICATING COMPOSITIONS
- C10L:FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYN....
- G01N:INVESTIGATING OR ANALYSING MATERIALS BY DETERMININ....
- C09B:ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PROD....
- A24C:MACHINES FOR MAKING CIGARS OR CIGARETTES
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