Proofing method of colored spun yarn

The invention belongs to the technical field of spinning, and particularly relates to a proofing method for colored spun yarn. The preparation method comprises the following steps: weighing raw materials, opening and mixing by adopting an airflow carding machine, drafting into strips by adopting a drafting instrument, spinning rough yarns and spinning spun yarns to obtain samples of the colored spun yarns, and judging and comparing the colors of the samples of the colored spun yarns. According to the method, few raw materials are used, the technological process is short, the sampling time is short, the colored spun yarn proofing speed is greatly increased, the whole spinning process is free of falling object points and fiber loss, the sampling count error is small, and the colored spun yarn proofing quality is guaranteed. 本发明属于纺织技术领域，具体涉及一种色纺纱的打样方法。称取原料，采用气流分梳机进行开松混合，采用牵伸仪进行牵伸成条，纺制粗纱，纺制细纱，得到色纺纱的打样品，色纺纱的打样品进行判色比对。本发明使用原料少，工艺流程短，出样时间短，大大提高了色纺纱打样速度，而且整个纺纱过程无落物点，没有纤维损耗，出样支数误差小，保证了色纺纱打样质量。