Stock solution-colored hollow polylactic acid fiber and preparation method thereof
A technology of dope coloring and lactic acid fiber, which is applied in the field of fiber production, can solve problems such as non-production methods, high technical requirements for color matching personnel, and complicated operation of pigment residues, etc., achieve high color fastness, solve white pollution, and overcome poor hydrolysis resistance Effect
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Example Embodiment
[0031] Embodiment 1 Preparation of stock solution colored white hollow polylactic acid fiber
[0032] A. Preparation of stock solution colored white polylactic acid masterbatch:
[0033]Grind carrier polylactic acid slices into powders with a size of 100nm to 300nm, and mix them evenly with the mixture (60wt%: 40wt%) of environmentally friendly pigment C.I. Pigment White 6 and auxiliary materials polyethylene wax and nano-calcium carbonate. Lactic acid chip powder 68%, environmental protection pigment 4%, auxiliary material 28%. After blending and drying, screw extrusion melting, extruding, cooling, drawing, pelletizing and drying, the stock solution colored white polylactic acid masterbatch is prepared.
[0034] B. Preparation of stock solution colored white hollow polylactic acid fiber:
[0035] After drying the stock solution colored white polylactic acid masterbatch and polylactic acid slices, they are spun on the LHV431 type spinning machine, and stretched and spun on t...
Example Embodiment
[0038] Embodiment 2 Preparation of dope dyed blue hollow polylactic acid fiber
[0039] A. Preparation of stock solution colored blue polylactic acid masterbatch:
[0040] Grind carrier polylactic acid slices into powders with a size of 100nm to 300nm, and mix them evenly with the mixture (50wt%: 50wt%) of environmentally friendly pigment C.I pigment blue 17:1 and auxiliary materials polyethylene wax and nano-calcium carbonate. The weight percentage is: Carrier polylactic acid chip powder 73%, environmental protection pigment 10%, auxiliary material 17%. After blending and drying, screw extrusion melting, extruding, cooling, drawing, pelletizing and drying are made into blue polylactic acid masterbatches colored in stock solution.
[0041] B. Preparation of dope dyed blue hollow polylactic acid fiber:
[0042] After drying the dope-colored blue polylactic acid masterbatch and polylactic acid slices, they are spun on a LHV431 spinning machine, and drawn and spun on a LHV903 c...
Example Embodiment
[0045] Embodiment 3 preparation of dope coloring green hollow polylactic acid fiber
[0046] A. Preparation of stock solution colored green polylactic acid masterbatch:
[0047] Grind carrier polylactic acid slices into powders with a size of 100nm to 300nm, and mix them evenly with the mixture (40wt%: 60wt%) of environmentally friendly colorant light-fast emerald green lake and auxiliary materials polyethylene wax and nano-calcium carbonate. The weight percentage is: carrier Polylactic acid chip powder 83%, environmental protection pigment 7%, auxiliary material 10%. After blending and drying, screw extrusion melting, extruding, cooling, drawing, pelletizing and drying are made into green polylactic acid masterbatches colored with dope.
[0048] B. Preparation of stock solution colored green hollow polylactic acid fiber:
[0049] Spinning on the LHV431 type spinning machine after drying the stock solution colored green polylactic acid masterbatch and polylactic acid chips, ...
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