Patent ID: 11643755

Abstract:
A thermoplastic polyurethane coated yarn having excellent adhesive strength in which hydrophobic nano-silica is mixed. The nano-silica is contained in the range of 0.2-5 parts per hundred resin (phr) and the nano-silica having a primary particle size of in a range of 1-100 nm. The thermoplastic polyurethane coating yarn mixed with the hydrophobic nano-silica of the present invention is uniformly coated with a thermoplastic polyurethane resin containing nano-silica containing a hydrophobic functional group on the surface of the core yarn, whereby the core yarn is biased to one side. Since no coating or uncoating occurs, the product quality and productivity are excellent, in addition to excellent durability and wear resistance of the thermoplastic polyurethane, mechanical strength and chemical resistance are improved.