Response Surface Optimized Dyeing of Kenaf Fiber in Supercritical Carbon Dioxide

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Kenaf fibers were dyed with capsanthin using supercritical carbon dioxide. Response surface methodology, based on a three level and three variable small central composite design, was employed to obtain the best possible combination of dyeing time, temperature and pressure for maximum K/S value.The optimum conditions were as follows: dyeing time of 60 min, temperature of 119.99 °C and pressure of 30 MPa. Under these conditions, the K/S value was 17.54, which was similar to the value predicted by the model.

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109-112

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October 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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