carpet yarn is provided which is significantly less sensitive to changing ambient environmental conditions . as such , the carpet yarns exhibit substantially uniform wet bulk properties across a wide range of ambient temperature and / or atmospheric moisture conditions so as to reduce significantly visible streaks in carpets formed of such yarns . in especially preferred embodiments , the carpet yarns when made are subjected to a substantially higher draw ratio and a substantially higher precrimp temperature prior to being brought into contact with water supplied by means of a non - peristaltic , continuous pressure , steady stream pump . the resulting yarn moisture content is increased to a greater level as compared to conventional carpet yarns not possessing the environmental desensitivity exhibited by the yarns of the present invention .