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Study of Property Change of Solvent Spinning Rayon treated with Solvent and it's Approach to Utility

溶剂纺人造丝经溶剂处理后性能变化的研究及其实用化途径

基本信息

批准号：
09559016
负责人：
SASAKI Hiroaki
金额：
$ 6.08万
依托单位：
Niigata Women's College
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1999
项目状态：
已结题

项目摘要

Since fibrillation of organic solvent spinning fiber takes easily when it is wetted and subjected to a mechanical action, surface treatments have been carried out in purpose to prevent of the fibrillation. A ferric sodium tartrate complex solution (FeTNa) is employed as the cellulose solvent and investigated the appropriate treatment condition, swelling behavior and consumption properties. Treatment of TENCEL yarn with FeTNa complex solution causes no remarkable degradation of cellulose main chains but increase of crystallinity. Crystallinity increase is attributable to the rearrangements of intermolecular hydrogen bonds in an amorphous region through the swelling of cellulose molecules with the complex solution. Swollen micro-pore structure of TENCEL yarns are determined by the inverse liquid chromatography. The treatment of yarns with FeTNa solution results in producing a temperature insensitive hard swollen gel with smaller micro-pore sizes but larger the total pore volume in comparison with the original sample. Formation of colloidal particles of Fe(OH)ィイD23ィエD2 on the surface of the treated yarns suggests the existence of the large voids running along the fiber axis. The uptake of untreated fiber at equilibrium is slightly higher than that of the treated fiber. The dyeing rate of the treated fibers are 34〜38 times faster than that of the untreated fiber. The increase of dyeing rate is attributable to the existence of voids on the fiber surface under the wetting condition. The treatment of the TENCEL yarn with FeTNa solution results in the crimpy fiber structure. The crimps of fiber make large contributions to the elastic recoveries of yarn and knit fabric. The fabric knitted in the treated yarn is excellent in moisture transmission property.

由于有机溶剂纺丝纤维在润湿并受到机械作用时容易发生原纤化，因此进行了表面处理以防止原纤化。采用酒石酸铁钠络合物溶液（FeTNa）作为纤维素溶剂，并研究了适当的处理条件、溶胀行为和消耗特性。用FeTNa络合物溶液处理TENCEL纱线不会导致纤维素主链明显降解，但结晶度增加。结晶度的增加归因于通过纤维素分子随复杂溶液的溶胀而在无定形区域中分子间氢键的重排。采用反相液相色谱法测定天丝纱线的溶胀微孔结构。用 FeTNa 溶液处理纱线会产生温度不敏感的硬溶胀凝胶，与原始样品相比，其微孔尺寸更小，但总孔体积更大。在处理过的纱线表面上形成 Fe(OH)iiD23iiD2 胶体颗粒表明存在沿纤维轴延伸的大空隙。未处理纤维在平衡状态下的吸收率略高于处理过的纤维。处理后的纤维的染色速度比未处理的纤维快34〜38倍。上染率的提高归因于润湿条件下纤维表面存在空隙。用 FeTNa 溶液处理 TENCEL 纱线会产生卷曲的纤维结构。纤维的卷曲对纱线和针织物的弹性恢复有很大贡献。用处理过的纱线编织的织物具有优异的透湿性。