Patent ID: 8623245
Filing Date: 2014-01-07
Classification: D01D,D01F,Y10T

Abstract:
1. A method for preparing a colored high strength polyethylene fiber, wherein the surface of the fiber is covered with multicolor, grey or black, a tensile strength of the fiber is from 15 to 50 cN/dtex and a tensile elastic modulus of the fiber is from 400 to 2000 cN/dtex, with a gel spinning process which comprises a procedure of precursor fiber preparation by swelling an ultrahigh molecular weight polyethylene in a solvent, the method comprising: adding an inorganic pigment with particle size smaller than 1 μm, wherein a weight ratio of the inorganic pigment to the ultrahigh molecular weight polyethylene ranges from 1.0 to 3.0%; wherein the inorganic pigment is selected from the group consisting of: lead chrome green, bismuth vanadate, bismuth molybdate yellow, calcium exchanged silica pigments, chrome cobalt green, ferrotitanium brown, copper-chromium black, alkali resistance iron blue, easily dispersible iron blue, zinc barium yellow, zinc barium green, zinc barium red, manganese antimony titanate brown, and mica pearlescent pigment titanium dioxide coated.