Biodegradable needling warmth retention flocculus and preparation method thereof

The invention provides a biodegradable needling warmth retention flocculus and a preparation method thereof. Viloft fibers are carded into nets; nets are laid in an intersected manner; the laid nets are drawn by the aid of a plurality of rollers; needling is reinforced to form the warmth retention flocculus. By a pre-needling reinforcement method, high-temperature treatment is omitted, and the fibers are intersected each other by the aid of crimp indexes of the fiber and needling friction force, so that fiber nets have a certain strength and keep a certain filling power. The needling reinforcement method is simple in process, energy consumption is low as compared with a hot air reinforcement method, production cost of flocculus products is reduced, chemical gas emission is reduced, and themethod for processing the flocculus is environmentally friendly. 本发明提供了种可生物降解的针刺保暖絮片及其制备方法，保暖絮片由Viloft纤维通过梳理成网交叉铺网多辊牵伸针刺加固加工而成。本发明采用了预针刺加固方法，不经过高温处理，利用纤维的卷曲度和针刺摩擦力使纤维间互相交叉，使纤维网既具有定强度又保持了定的蓬松度。同时针刺加固法流程简单，相比热风加固法能耗低，降低了絮片产品生产