Method for preparing functional highly-twisted color dot yarn
A functional and colorful technology, applied in the field of spinning, can solve the problem of low fiber density, achieve the effect of strong three-dimensional effect, increase color richness and three-dimensional effect, and promote progress and development
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[0030] A preparation method of functional strong-twisted color-dot silk, comprising the steps of:
[0031] Step 1, preparation and dyeing of cupro ammonia fiber filaments: dissolving natural cellulose raw materials such as cotton linters in the concentrated ammonia solution of copper hydroxide or alkaline copper salt, making spinning solution, and dissolving them in water or dilute alkali solution Spinning and forming in the coagulation bath, and then in the second bath containing 2-3% sulfuric acid solution, decompose the molecular chemical substances of cupro ammonia fiber to regenerate cellulose, generate hydrated cellulose, and obtain cupro ammonia fiber after post-processing; and carry out Dyeing treatment.
[0032] Step 2, UHMWPE filament coloring treatment:
[0033] In this method, the organic pigment solution and the ultra-high molecular weight polyethylene fiber spinning stock solution are co-extruded in a twin-screw extruder. Because the internal temperature of the ...
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