| 摘要 |
PROBLEM TO BE SOLVED: To provide a ball for a ball game which solves a trouble accompanying the use of a conventional solvent volatile type adhesive, and its manufacturing method. SOLUTION: A reinforcing layer is formed by evenly winding a nylon yarn or a polyester yarn on the surface of a rubber blaster, and a carcass 1 is formed by fixing the yarn of the reinforcing layer with a natural rubber-based adhesive and vulcanize-bonded. Then, on the surface of the carcass 1, an adhesive layer 2 is formed by applying a non-solvent type reactive elastic adhesive, and a skin 3 is pasted to the carcass 1 through the adhesive layer 2. As the non-solvent type elastic adhesive, one of which the main component is a hydrolysis sylil group containing polymer is used. COPYRIGHT: (C)2005,JPO&NCIPI
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