Hygroscopicity of polyacrylic acid sodium has a strong and cohesive force, supplemented by a suitable amount of this product granulation, can increase the cohesive force of cat litter raw material, the moisture of dung can be quickly absorbed, form a group of big hard, no dust or dust is small, do not cause air pollution, and prevent the penetration ability is very strong, have good cluster and adsorption function, at the same time solve the problem of urine, the urine is also condenses into pieces, to root out together, health and clean up more convenient. If encounter loose bowstring, also can suckle successfully into a group, no longer have the trouble that common cat litter wraps not to live. It is suggested that if you have a purebred cat, the kind with weak stomach (easy to loose) must be used to bond better. The effect is especially remarkable in the application of sawdust cat litter and bentonite cat litter.