CPC A63B 37/00373 (2020.08) [A63B 37/0043 (2013.01); A63B 37/0075 (2013.01); A63B 37/00495 (2020.08)] | 10 Claims |
1. A golf ball comprising a core and a cover positioned outside the core, wherein
an n-layer (n is a natural number) partial mid layer is provided between the core and the cover and has a hardness equal to a hardness of the cover,
an area of the core in a region where the cover is laminated thereon is not less than 5.0% and not greater than 95.0% of a surface area of a phantom sphere having a radius equal to an average value of a distance from a central point of the core to a surface of the core, and
in an outer surface of the golf ball, a color difference ΔE1 based on a CIELAB color system between a region C where the cover is directly laminated on the core and a region M where the cover is laminated on the partial mid layer is not less than 20.0.
|