| 摘要 |
A method of making hollow playballs, particularly tennis balls, having a fiberous e.g. fabric layer, and a flexible polymeric layer in the wall of the ball. The method involves forming laminate blanks of the fiberous material and polymer, edge-joining one or more blanks to form a closed hollow body and hot molding the hollow body in a mold of the desired configuration. A novel playball is also provided. |
