This paper introduces the key step of fully shrinking for suitable elasticity in cheese dyeing of PTT filament core-spun elastic yarn and staple blended yarn.
通过分析，认为PTT弹性长丝包芯纱线及短纤维混纺纱线的筒子染色关键，是使其充分收缩，以达到适宜弹性；
The article introduces new technical and process for core-spun spandex before or after cheese dyeing, and try to keep and recover the elasticity of spandex in finishing.
并在后整理时采用一定的方法使应力回缩，恢复氨纶纱的特性。
The main elements to influence dyeing quality of package dyed yarn are detailedly introduced from the aspects of cheese shaping, winding density, dyeing equipment, water quality and dyestuffs purity.
从筒子纱的成形、染色设备、水质、染料纯度几方面对影响筒子纱染色质量的主要因素做了详细的介绍。
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