| 摘要 |
PROBLEM TO BE SOLVED: To provide a bonding method between the skin side and the ball side of a ball for ball game wherein bonding work in the manufacturing process of the ball for ball game is simplified and working environment is improved by bonding the skin side to the ball side as they are or with moisture by using a water reactive adhesive as an adhesive required for bonding the skin side and the ball side of the ball. SOLUTION: When a plurality of skin sheets (A) on the skin side are bonded on a hollow spherical tube (B) on the ball side in the ball for ball game, the bonding method includes the steps of providing a water reactive adhesive (1) on the rear surface of the skin sheets (A) and bonding the skin sheets (A) on the hollow spherical tube (B) as they are or bonding the skin sheets (A) on the surface of the hollow spherical tube (B) after a water solution (2) is applied on the surface of the hollow spherical tube (B). COPYRIGHT: (C)2006,JPO&NCIPI
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