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Conventional WOM underwear has the features of stiffness, smoothness and smoothness. However, wrinkle resistance, poor elasticity and some high-tightness fabrics feel too hard and the hairiness is insufficient during use. PTT fiber good tensile resilience to meet the uniform fabric of the micro-elastic needs. Similar to the low initial modulus of the wool fiber, can give the fabric a soft feel. Blending PTT fiber and wool will help to improve the flexibility and anti-wrinkle properties of conventional wool / polyester uniform fabrics and develop a new generation of wool-blended uniforms. For wool / polyester uniform fabrics, the traditional wool dyeing and finishing process is often used, including the full washing, cooking and other wetting and tidying processes, so as to ensure that the wool fibers are sorted out under sufficient heat and moisture conditions. However, Long process, resulting in high production costs. Using the raw liquid coloring PTT and dyed wool blended yarn, we can learn the principle of the wool dyeing and finishing process, discuss the dyeing and finishing process with high efficiency and short process on the chemical fiber fabric dyeing and finishing line, and can develop a new generation of good liquid dyeing PTT / wool blended Fan Li Ding uniform fabric. Weaving Process Control Combining the mechanical properties of wool / PTT blended yarns under wet heat and dry heat treatments, as well as the development of elastic fabrics, we can fabricate Fan Li Ding and adjust the tightness by the warp and weft densities. In weaving, proper control of warp tension, and increase the latitudinal tension, so that the weft in a fully straightened state, to relax retractable yarn dredging left room, and to ensure the realization of flexibility. At the same time, for high PTT content of yarn, the fabric through the appropriate density reduction. Dyeing and finishing process to control the traditional long process of worsted hair dyeing and finishing, in order to improve ergonomics, to achieve efficient short process dyeing and finishing, try to dye and finish the production line dyeing and finishing. The process used is: Singeing - flat-width jigger machine washing - overflow dyeing machine washing it - dehydration - drying - rolling stereotypes - steamed it - the finished product. First of all, in a flatbed jigger washing it, the water temperature is about 80 ℃, the main role played a predetermined role in the hair fiber to prevent after the Road loose washing process caused by wrinkles and excessive hairiness, the process of fabric width shrinkage, However, the warp length will increase slightly. Then in the overflow dyeing machine, with 40 ~ 50 ℃ water to wash the stain on the fabric, and make the fabric in a relaxed state, the process of the accumulated stress during the release, making the fabric reaches equilibrium, the process, the width Continue to shrink, the length is also slightly shorter. Adopt about 15% overfeed and 180 ℃ stereotypes temperature, has a good feel and stereotypes effect. Finally, it is steamed, to further improve the feel and improve the elastic recovery rate of folds. Comparative Analysis of Fabric Performance The two kinds of wool / PTT blended fabrics obtained by the efficient short-course dyeing and finishing process, no matter what proportion of the blended fabrics, have good tensile deformation ability and resilience in the warp and weft directions, And pure wool fabric can not be achieved. Two kinds of fabrics are reflected in the sense of strong hair, feel rich, drape performance, gloss and soft characteristics. At the same time, the physical indicators are to meet the service requirements, some of the indicators of good, such as pilling up to 4 to 5, pleat retention also reached 4 above, the various color fastness in 4 to 5. For all the legislation of this organizational structure, the use of 30/70 wool / PTT blended can get better wool style and flexibility. However, compared with the conventional wool and polyester fabrics, wool / PTT blends lack of tensile modulus of the fabric is low, under the same force conditions, prone to arch deformation, and emergency, cushioning crease recovery are less than wool Fabric, the deformation after the recovery performance less than polyester fabric, which is to be improved in the future development of the focus. The use of chemical fiber dyeing and finishing lines to achieve the original liquid coloring PTT / hair short hair dyeing process, and achieved good results, even the hair / PTT30 / 70 fabric also has excellent hair feeling and flexibility to prove that PTT fiber in the development of wool products potential.