Artificial lawn make athletic competition field

摘要

PURPOSE: To prevent athletes from being injured by a method wherein a maximum water absorbing amount is specified and water absorptive resin particles to absorb and discharge moisture according to the change of humidity are sprayed between artificial lawns. ;CONSTITUTION: Water absorptive resin particles 6, such as starch acrylic acid salt graft copolymer crosslinked substance, which has a maximum water absorbing amount, measured according to JIS-K-6767, being 100-1000 times as large as a dead weight and absorbs and discharges moisture according to the humidity change of surroundings are provided. The particle 6 are then sprayed in the lawn meshes of an artificial lawn 1 adhered to a bed base material 2. During use, the end part of each leaf-form pile 5 of a lawn 1 is rounded and the resin 6 is concealed. Jumping out to the surface of the lawn 1 is prevented from occurring and the holding moisture content of the particles is protected. Thus the lawn is hard to dry. Further, the artificial lawn may forms a sand-contained artificial lawn by mixing sand in the particles 6. This constitution prevents the occurrence of scratch and burn even when a player slips and tumbles down.;COPYRIGHT: (C)1994,JPO&Japio