And type of yarn ( for example, core-spun stretch yarns, complex yarns with little or no stretch, single or ply yarns of high dimensional stabililty). 纱线的类型(例如弹力包芯纱、弹性小或较差的花式线,具有较好的尺寸稳定性的单纱或股线)。
Textured yarns that have been programmed for extraordinary extensibility are known as stretch yarns. 具有特别伸长性的变形纱称为弹丝。
Most stretch yarns can be extended from one and one-half to twice their normal or relaxed length. 大多数弹力丝可被拉伸到正常或松驰状态长度的1倍半到2倍。
To produce bulk yarns with little or no stretch, the yarns are heated a second time after being untwisted. 要生产较小弹性或没有弹性的蓬松纱线,纱线解捻后要进行第二次热定型。
One of the most common types of core-spun yarns is that involving a core of a stretch filament such as spandex with a covering of staple fibers. The high elasticity of polyester yarns makes it necessary to use low tension when warping or slashing the yarns. 最常用的包芯纱之一是芯部采用弹力丝(例如氨纶),表层使用短纤维。由于聚酯纤维具有较高的弹性,在整经和浆纱时宜采用较低的张力。
On the Relation Between the Processing Parameters and the Fabric Style with the Bicomponent Stretch and Crepe Filament Yarns 二元弹力绉丝的工艺参数与织物风格的关系研究
The mechanical properties ( action stretch, elastic recovery and creeping) of four kinds of PTT staple yarns with twist factor of 280,320,360,400 respectively were studied. 采用4种不同捻系数(280、320、360、400)的PTT短纤纱做为研究对象,对其主要力学性能(强伸性、拉伸回复性以及蠕变性能)进行了研究。