The invention discloses a preparing method of light weight
wool yarn for roving. The method comprises the first step of adding
oil water and an
antistatic agent with a certain proportion into a
wool mixed material of
wool raw materials and chemical
fiber, and conducting intensive mixing, wherein the length of the wool mixed material is 5cm or above, and the wool mixed material is in a wavy shape; the second step of
carding the wool mixed material in which
moisture is absorbed till a
spinning requirement is accorded with, controlling the clip distance between roller cylinders to be in a relaxed state till the
fiber is not straightened, and then making rove with no twisting degree through winding; the third step of firstly conducting unwinding on wound rove with no twisting degree to form wool
yarn, and then lengthening shaft distances in the unwinding process till no tension exists; the fourth step of feeding and winding two ends of each of the wool
yarn and filament with a twisting degree; the fifth step of winding two pieces of yarn prepared in the fourth step under the condition that
airflow is blown to the yarn. According to the preparing method of the light weight wool yarn for roving, innovation is made in both
material selection and technology, the design and
manufacturing technology of the wool yarn are a breakthrough made in traditional design application of roving wool yarn, and thus the preparing method of the light weight wool yarn for roving is worthy of popularization.