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    • 4. 发明授权
    • 신축성이 우수한 레이온 원사의 제조방법
    • 具有优异外观的制造方法
    • KR101425853B1
    • 2014-08-01
    • KR1020130099446
    • 2013-08-22
    • (주)앤디아이(주)영원코포레이션한국섬유개발연구원
    • 백승호김중희임호용김희진전철수전초현
    • D02G1/02D02G3/26D02G3/02
    • The present invention relates to a manufacturing method for a rayon yarn with excellent elasticity, the method including: (i) a twisting process for twisting a rayon yarn to have a twist number of 700 to 2,500 per 1m; (ii) a twist fixing process for fixing a twist applied to the rayon yarn by treating the twisted rayon yarn with steam; and (iii) a sanforizing process for leaving the twist-fixed rayon yarn at a temperature of 30 to 35°C and under a humidity of 60 to 70% for 48 hours or more. According to the present invention, stiffness is given to the rayon yarn to extremely increase a restoring force when the rayon yarn is swelled by absorbing water, thereby highly enhancing elasticity by forming a crimp on the rayon yarn. The present invention effectively overcomes problems of severe wrinkles and poor shape stability caused by the rayon yarn′s own characteristics that the rayon yarn is swelled by absorbing water and shrunk by drying, and also realizes the rayon yarn having high elasticity without adding a highly elastic yarn such as spandex.
    • 本发明涉及一种弹性优异的人造丝纱的制造方法,其特征在于,包括:(1)捻丝人造丝的扭曲加工捻度为每1m的捻数为700〜2,500; (ii)扭曲定影方法,用于通过用蒸汽处理所述扭曲人造丝纱来固定施加到所述人造丝纱线上的扭曲; 和(iii)在30〜35℃的温度和60〜70%的湿度下离开扭转固定的人造丝线48小时以上的整理方法。 根据本发明,通过吸收水使人造丝线膨胀,从而通过在人造丝线上形成卷曲而提高弹性,人造丝的硬度极大地提高了恢复力。 本发明有效地克服了由人造丝本身的特性引起的严重皱纹和形状稳定性差的问题,人造丝通过吸水而膨胀并通过干燥而收缩,并且还实现了具有高弹性的人造丝,而不增加高弹性 纱线如氨纶。