Baseball/softball and method of processing thereof

A baseball/softball, comprising a core and a cover, wherein the core is independently molded and wrapped with a layer of fiber material soaked with rubber, the layer of fiber material is wrapped and glued with the cover, wherein the layer of fiber material consists of more than one layer of wool and one layer or more of TR (polyester viscose blended) yarn outside the layer of wool;

• a cover material is made based on a formula comprising a rubber, a pulverized cow leather material, and a rubber vulcanizing agent, with a mixing and rubber breaking process, wherein the rubber vulcanizing agent comprises a sulfur, a softening oil, a precipitated calcium carbonate or a ground calcium carbonate;
• the core, the layer of wool and the layer of TR yarn for wrapping the core are directly placed into the cover material after the mixing and rubber breaking of the cover material but before molding thereof, and into a mold together with the cover material for taking out of the mold along with the cover after high-temperature vulcanization;
• the gluing process is realized by a vulcanization melting layer formed on an inner wall of the cover and glued the cover to the layer of fiber material.