Abstract: A super-absorbent slurry was prepared with solution polymerization. Rayon non-woven fabric was prepared by the way of dipping, which made them with good water absorption, and the reaction conditions were optimized through ortho-experiment. The influence of hot pressing conditions on apparent water absorption and tensile properties of film was discussed, and the repeated water absorption ability and related structures were also analysised and characterized. The results showed that, when the monomer ratio was AA：AM=46：54, modified kaolin content was 2%, initiator content was 0.2%, crosslinker content was 0.1%，reaction temperature was 55°C, the apparent water absorption of membrane-based fabric could reach 5004.535 g/m² , the water absorption and tensile properties were good in different hot-pressing temperature and time, and the quality of reuse was also very well.

Key words: retention film, absorbing cap ability, hot-pressing, tensile property, repeated water absorption