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4 results

  1. CORESTA Congress, Sapporo, 2012, Smoke Science/Product Technology Groups, PT 01

    Photodegradability testing of cellulose acetate filters – outdoor weathering vs. accelerated weathering

    STEACH J.K.; FISHER JONES D.
    Eastman Chemical Company, Kingsport, TN, USA
    Degradation testing in the laboratory is based on understanding a material’s exposure to specific environmental forces, which can play a key role in the mechanisms of degradation. Cellulose acetate filters can be degraded by various environmental...
  2. Tobacco Science & Technology, 2012, 12, p. 33-38, ISSN.1002-0861

    Effects of yellowing and color fixing durations during curing on chemical components in flue-cured tobacco leaves

    JIANG Houlong(1,2); LIU Guoshun(*1); ZHOU Hui(1); HU Hongchao(3)
    (1) College of Tobacco; National Tobacco Cultivation & Physiology & Biochemistry Research Center, Henan Agricultural University, Zhengzhou 450002, P.R. China; (2) Chongqing Tobacco Science Research Institute, Chongqing 400715, P.R. China; (3) Pingdingshan Branch, Henan Province Tobacco Company, Pingdingshan 467000, Henan, P.R. China
    The effects of durations of yellowing and color fixing during curing on chemical components in flue-cured tobacco leaves in a stepping flue-curing barn were investigated. The results showed that: 1) When yellowing duration was prolonged for 12 hours,...
  3. Tobacco Science & Technology, 2012, 4, p. 16-19, ISSN.1002-0861

    An identification-free self-adaptive control scheme for tobacco casing and flavoring processes

    CAO Qi(1); HE Shanjun(2); LIN Miaoqiao(1); MA Qingwen(1); LIN Tianqin(1)
    (1) Longyan Tobacco Industrial Co., Ltd., Longyan 364000, Fujian, P.R. China; (2) Xiamen Tobacco Industrial Co., Ltd., Xiamen 361026, Fujian, P.R. China
    The traditional PID control in tobacco casing and flavoring systems cannot respond to significant tobacco flow variations steadily and accurately, which results in uneven casing and flavoring distribution in processed cut tobacco. Therefore, an...