The invention discloses sliding cool
fiber and preparation and application thereof. The sliding cool
fiber is
skin-core structure complex
fiber which uses chinlon as a core material and uses
polyethylene as a
skin material; the sliding cool fiber is prepared from the following raw materials by
mass percentage: 30%-70% of the chinlon and 30%-70% of the
polyethylene. The fiber filament is high in strength, good in
toughness and stability, smooth and cool in hand feeling, can be used as a warp and a weft in
spinning, and can be used for both of a shuttle loom and a shuttleless loom, the fiber filament can also be used for knitting fabric containing the sliding cool fibers, and the knitted fabric is good in wearability; a preparation method of the sliding cool fiber is improved on the basis ofan existing composite
spinning technology of complex fibers, and the main improvement is that two melt distribution pipes are provided in a
spinning manifold: a PA melt distribution
pipe and a PE melt distribution
pipe, wherein the length of the PE melt distribution
pipe is 30%-40% shorter than the length of the PA melt distribution pipe, so that PE and PA, the two types of materials in large specific difference are guaranteed to be successfully compounded, the compact compounding of pure
polyethylene and pure
polyamide is realized, the operation is convenient, and the method is suitable forindustrial production.