Cladding yarn discolours

The utility model discloses a cladding yarn discolours, including core silk and outer cladding yarn, the core silk is themochromic spandex long filament, outer cladding yarn includes first layer outsourcing yarn and second floor outsourcing yarn, first outsourcing yarn is themochromic polyester filament, first layer outsourcing yarn is with the positive spiral cladding in 15-45 cladding angle in heart yearn surface, second floor outsourcing yarn is surperficial in the heart yearn with 45-75 cladding angle backpitch cladding. In this way, the utility model relates to a cladding yarn discolours has broken ordinary dyestuff cladding yarn and can only print the restriction that colour, long -time rinsing fade easily, and under the different temperatures, the color changes differently, makes us fresh and new, has good elasticity simultaneously, and the hygroscopicity is washed indeformablely for a long time, and not balling -up does not influence the effect of discolouing.