| abstract |
It is an object of the present invention to provide a yarn coating agent containing a hydrophilic polyurethane resin which does not use an organic solvent. The above object is achieved by using 25 to 29% by weight of an aliphatic isocyanate polyol, 0.4 to 1% by weight of triethylamine as a chain extender, mixing 2 to 4% by weight of N-methyldiethanolamine and 68 to 70% A water-dispersible polyurethane resin; 26 to 32% by weight of an alkali-based copolymer compound, 1 to 3% by weight of an alkali-based polyoxyethylene sodium sulfate, 0.001 to 0.2% by weight of potassium sulfate, and a balance of water; Wherein the polyurethane resin is produced by mixing dispersed water. |