Golf ball

Abstract

A golf ball of the present invention includes: a core located in the center of the golf ball; a cover surrounding the outside of the core and having plural dimples on the surface thereof; and a paint layer surrounding the outside of the cover. The paint layer is formed of a material having rubber elasticity. The paint layer may have a thickness of at most approximately 100 μm. The paint layer may have a hardness of at most approximately 70 in terms of JIS-C hardness. The cover may contain ionomer resin. The cover may have a hardness of at least 40 in terms of Shore D hardness.

What is claimed is: 
     
         1 . A golf ball comprising:
 a core located in a center of the golf ball;   a cover surrounding an outside of the core and having plural dimples on a surface thereof; and   a paint layer surrounding an outside of the cover, the paint layer formed of a material having rubber elasticity.   
     
     
         2 . The golf ball according to  claim 1 , wherein the paint layer has a thickness of at most approximately 100 μm. 
     
     
         3 . The golf ball according to  claim 1 , wherein the paint layer has a hardness of at most approximately 70 in terms of JIS-C hardness. 
     
     
         4 . The golf ball according to  claim 1 , wherein a material used for forming the paint layer has a Young's Modulus of at most approximately 70 MPa. 
     
     
         5 . The golf ball according to  claim 1 , wherein the material for forming the paint layer has a Poisson's ratio of at least approximately 0.45. 
     
     
         6 . The golf ball according to  claim 1 , wherein the cover contains ionomer resin. 
     
     
         7 . The golf ball according to  claim 1 , wherein the cover has a hardness of at least 40 in terms of Shore D hardness.