초임계 CO2 접촉량이 염색 균염성에 미치는 영향에 대한 연구
The Influence of the Contact Amount of Supercritical CO2 on Dyeing Uniformity
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The influence of the contact amount of carbon dioxide per unit mass of dyestuff (α) on dyeing uniformity in supercritical fluid dyeing is analyzed in this study. The experiments using a 5L class Pilot Scale dyeing machine is carried out for this study purpose. For a fixed temperature and pressure, the amount of sample and the dyeing leveling time were considered as process variables. The results show that the increase in the amount of the sample causes a higher color difference than the reference sample, and it also increases the amount of residual dye. On the other hand, the color difference tended to decrease with the increase in dyeing time. Based on these results, the correlation between α value and dyeing uniformity in supercritical fluid dyeing is obtained.
Abstract
The influence of the contact amount of carbon dioxide per unit mass of dyestuff (α) on dyeing uniformity in supercritical fluid dyeing is analyzed in this study. The experiments using a 5L class Pilot Scale dyeing machine is carried out for this study purpose. For a fixed temperature and pressure, the amount of sample and the dyeing leveling time were considered as process variables. The results show that the increase in the amount of the sample causes a higher color difference than the reference sample, and it also increases the amount of residual dye. On the other hand, the color difference tended to decrease with the increase in dyeing time. Based on these results, the correlation between α value and dyeing uniformity in supercritical fluid dyeing is obtained.
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