Kousuke Sasaki, Kazumasa Hirogaki, Isao Tabata, Koji Nakane
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引用次数: 0
摘要
本研究探讨了在超临界二氧化碳环境下，负载有 C.I. 分散红 60（DR60）的电纺聚乙烯醇（PVA）纳米纤维作为聚对苯二甲酸乙二酯（PET）织物染色剂的功效。含有 DR60 的 PVA 纳米纤维（DR60/NF-1）的制备涉及到含有水和二甲亚砜的纺丝溶液。分析表明，使用 DR60/NF-1 处理的 PET 织物的 K/S 值（8.51）明显高于使用 DR60 粉末处理的织物（3.19），因此染色织物的着色明显不同（ΔEab：17.77）。此外，与 DR60 粉剂（13.19 mg/g）（4%（o.w.f.））相比，DR60/NF-1 在 3%（o.w.f.）用量下对 PET 织物（15.07 mg/g）的染料吸收率更高。这些研究结果表明，在超临界二氧化碳条件下进行的 PET 织物染色过程中，负载 DR60 的 PVA 纳米纤维具有增强着色和染料吸收的潜力，为提高纺织品生产的效率和可持续性提供了广阔的前景。
Supercritical fluid dyeing of polyester fabrics using polymeric nanofibers loaded with disperse dye
This study explores the efficacy of electrospun polyvinyl alcohol (PVA) nanofibers loaded with C.I. Disperse Red 60 (DR60) as dyeing agents for polyethylene terephthalate (PET) fabrics in a supercritical carbon dioxide environment. The fabrication of DR60-loaded PVA nanofibers (DR60/NF-1) involved a spinning solution containing water and dimethyl sulfoxide. Analysis revealed that PET fabrics treated with DR60/NF-1 exhibited significantly higher K/S values (8.51) compared to those treated with DR60 powder (3.19), resulting in visibly distinct coloration among dyed fabrics (ΔEab: 17.77). Additionally, DR60/NF-1 demonstrated superior dye uptake by PET fabrics (15.07 mg/g) at a dosage of 3% (o.w.f.) compared to DR60 powder (13.19 mg/g) at a dosage of 4% (o.w.f.). These findings underscore the potential of DR60-loaded PVA nanofibers to enhance coloration and dye uptake in PET fabric dyeing processes conducted under supercritical carbon dioxide conditions, offering promising avenues for advancing efficiency and sustainability in textile manufacturing.
期刊介绍：
The Journal of Supercritical Fluids is an international journal devoted to the fundamental and applied aspects of supercritical fluids and processes. Its aim is to provide a focused platform for academic and industrial researchers to report their findings and to have ready access to the advances in this rapidly growing field. Its coverage is multidisciplinary and includes both basic and applied topics.
Thermodynamics and phase equilibria, reaction kinetics and rate processes, thermal and transport properties, and all topics related to processing such as separations (extraction, fractionation, purification, chromatography) nucleation and impregnation are within the scope. Accounts of specific engineering applications such as those encountered in food, fuel, natural products, minerals, pharmaceuticals and polymer industries are included. Topics related to high pressure equipment design, analytical techniques, sensors, and process control methodologies are also within the scope of the journal.
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