Baseball/softball, method of processing thereof and material formula of baseball/softball cover

A baseball/softball, comprising a core and a cover, wherein the core is wrapped with a layer of fiber material, that is, a layer of fiber material soaked with rubber and added to the core being independently molded, 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 yarn outside the layer of wool;

• the 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 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 that has been mixed and applied but not yet molded, and into a mold together with the cover material for mold stripping along with the cover through high-temperature vulcanization;
• the gluing process is realized between a vulcanization melting layer formed on inner wall of the cover and the layer of fiber material.