Supercritical Dyeing of Polyester Fibers in a Mini-Plant Possessing Internal Circulator
Supercritical Dyeing of Polyester Fibers in a Mini-Plant Possessing Internal Circulator
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DOI：
10.2115/fiber.67.27
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发表时间：
2011-02
期刊：
影响因子：
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通讯作者：
S. Okubayashi;Takayuki Suzuma;Chuan Zhao;Miyazaki Keisuke;Kazumasa Hirogaki;I. Tabata;T. Hori
中科院分区：
文献类型：
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作者：
S. Okubayashi;Takayuki Suzuma;Chuan Zhao;Miyazaki Keisuke;Kazumasa Hirogaki;I. Tabata;T. Hori
在超临界二氧化碳（scCO2）中，用C.I.溶剂蓝35、C.I.分散红60和C.I.分散黄54对涤纶织物（PET）进行染色。对实验条件进行了优化，使涤纶织物在可见光和分光光度下均能均匀染色。通过在PET试样与高压柱中的不锈钢圆筒之间添加不锈钢网和棉织物来抑制染料的染色。随着染色液的循环，特别是染色后scCO2的释放，织物层间的可见色深差异得到了改善。分光光度测定结果表明，织物层与层之间对染料的吸收存在不可见的差异，这种差异被scCO2释放过程中持续时间的增加所抑制。采用改进的scCO2染色工艺，C.I.溶剂蓝35和C.I.分散红60的染料吸收率达到88 ~ 97%。
The polyester fabric (PET) was dyed with C.I. Solvent Blue 35, C.I. Disperse Red 60 and C.I. Disperse Yellow 54 in supercritical carbon dioxide (scCO2) using the apparatus that possesses circulation system. The experimental conditions were optimized to obtain both visibly and spectrophotometrically uniform dye uptake in PET fabric. The staining of the dye was suppressed by addition of stainless mesh and cotton fabrics between the PET specimen and the stainless cylinder settled in the high-pressure column. The visible difference of color depth between the layers of fabric was improved with circulation of the dye bath especially as the scCO2 was released after the dyeing. The spectrophotometric measurements firmly indicated the invisible distinction of dye uptake between the fabric layers, which was inhibited by enhancement of duration in the process of scCO2 release. The 88-97% dye uptake of C.I. Solvent Blue 35 and C.I. Disperse Red 60 was obtained in scCO2 dyeing by the improved procedure.