The invention discloses a preparation method for high-
toughness monofilament blended cotton
yarn. The preparation method comprises the following steps of carrying out cotton feeding, rolling, cotton
carding and drawing to obtain rough
yarn after carrying out cotton opening and scutching on long staple cotton, fine staple cotton, prefabricated monofilament materials and mixed cotton, and obtaining the high-
toughness monofilament blended cotton
yarn through
spinning and
spooling, wherein the prefabricated monofilament materials are obtained through draining and
drying after carrying out primary boiling and dehydrating, primary
steaming, secondary boiling and dehydrating, secondary
steaming, standing, bleaching and washing. The high-
toughness monofilament blended cotton yarn prepared by the preparation method has the characteristics of high toughness, low cost and the like, meanwhile, the air permeability is good, and the comfort is strong.