Abstract: Except for using the eco-friendly sizing agent, the warp sizing technology need to be transformed at the same time. This paper describes the differences between the new technology of the sizing with lower temperature or lower add-on and the traditional one under higher temperature or higher add-on, analyzes the new technical feasibility of the sizing with lower temperature or lower add-on based on the basic sizing principles, and puts forward the application methods of the new sizing with lower temperature or lower addon based on the characteristics of sizing agent and warp. The new technology of the sizing improves the sizing properties, meets the requirements of energy saving, emission reduction, cost reduction, intelligent size-mixing, etc., and promotes the new development of sizing technology.

Key words: lower temperature sizing; lower add-on sizing; sizing principle and application; eco-friendly sizing