To reduce viscosity of raw starch size and enhance the adhesion ability to pure cotton yarn, starch reducing viscosity agent SPU was developed by three agents and suitable ratio.

Quantitative relations of the pump flow rate versus the ratio of diffuser length to width, the ratio of diffuser thickness to width, fluid viscosity and backpressure were also given.

The influence of organobentonite on sedimentation ratio, viscosity, thixotropy, film conductivity and micromorphology of the copper based conductive paint is investigated.