丝网上盖下托双纱复合的复合纱、纺纱方法及应用

Composite yarn compounded by double yarns through using filament screens to cover downwards and support upwards, spinning method and application

Abstract

本发明涉及一种丝网上盖下托双纱复合的复合纱、纺纱方法及其应用。该复合纱是一对双丝网夹持裹缠短纤维须条再复合的3×2轴系的双网复合纱。其有三种形式:双网裹/双网裹、网裹网包/网裹网包和双网裹/网裹网包的复合纱,可织造成纹理清晰、柔软耐磨、强度高、抗起毛起球、美观舒适的织物和高档精细面料。实现该复合纱的方法是采用导纱钩和展丝器,安装于环锭细纱机上,使4束长丝经导丝钩分上行两束和下行两束,分别进入各自的展丝器展丝,形成两路上盖丝网和下托丝网并,在在加捻三角区形成对各自的短纤维须条夹持裹缠后,复併成双网复合纱。该方法适用于超短、易掉屑、易飞花纤维和偏短、偏弱回用纤维的保护式、柔软光洁复合纱的纺纱。
The invention relates to a composite yarn compounded by double yarns through using filament screens to cover downwards and support upwards, a spinning method and application thereof. The composite yarn is a double-screen composite yarn with a 3*2 axis formed by clamping and wrapping short fiber yarns through a pair of double filament screens. The composite yarn with three types, consisting of double screen wrapping/double screen wrapping, screen-wrapping screen covering/screen-wrapping screen covering and double screen wrapping/screen-wrapping screen covering, can be woven into textiles and high-grade fine fabrics with clear texture, softness, abrasion resistance, high strength, anti-fluffing anti-pilling property, beautiful appearance and comfortableness. The method for producing the composite yarn comprises the following steps of: arranging a yarn guiding hook and a filament spreading device on a ring spinning frame, dividing four bunches of long filaments into two uplink bunches and two downlink bunches through the filament guiding hook, feeding the uplink bunches and the downlink bunches into respective filament spreader for spreading, forming two paths of covering filament screen and support filament screen, clamping and wrapping the respective short fiber yarns at a twisting triangular region, and compounding to form the double-screen composite yarn. The method provided by the invention is suitable for spinning protective, soft and smooth composite yarns from ultrashort, easily-flaky and easily-flying fibers and shorter and weaker recycled fibers.

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