Rubber product with fiber reinforcing layer and method for producing the same

A method for producing a rubber product with a fiber reinforcing layer comprising:

• a fiber stacking step of stacking a fiber reinforcing layer comprising a woven fiber cord on an unvulcanized rubber layer comprising at least one selected from the group consisting of a nonpolar rubber and a diene-based rubber, the fiber cord being one of a fiber cord having a polarity in a material and a fiber cord being subjected to a polarizing treatment to have a polarity,
• an adhesive treatment step of applying an adhesive solution comprising a triazine thiol and a diene-based rubber dissolved in a solvent to at least an interface between the rubber layer and the fiber reinforcing layer, and
• a drying step of drying the resultant stack at 50 to 180° C. while pressing the fiber reinforcing layer against the rubber layer.

A method for producing a rubber product with a fiber reinforcing layer comprising:

• an adhesive treatment step of applying an adhesive solution comprising a triazine thiol and a diene-based rubber dissolved in a solvent to a fiber cord, the fiber cord being one of a fiber cord having a polarity in a material and a fiber cord being subjected to a polarizing treatment to have a polarity,
• a drying step of drying the fiber cord at 50 to 180° C., and
• a fiber stacking step of stacking a fiber reinforcing layer formed by weaving the fiber cord after the drying step on an unvulcanized rubber layer comprising at least one selected from the group consisting of a nonpolar rubber and a diene-based rubber.