Provided are a method for manufacturing a rubber composition for a tire and a method for manufacturing a tire including this manufacturing method for the rubber composition in the present invention, which are characterized by including the steps of: starting to knead a rubber component, a sulfur donor, and a sulfur atom-containing vulcanization accelerator together before kneading the rubber component with a filler; and then adding a filler to an obtained kneaded product and performing kneading at a kneading temperature of 120°C or higher. According to the manufacturing methods of the present invention, a rubber composition for a tire and a tire which have good fracture property can be manufactured.
本发明提供了一种用于轮胎的橡胶组合物的制造方法和一种包括本发明中橡胶组合物的制造方法的轮胎制造方法,其特征在于包括以下步骤:在将橡胶组合物与填料混炼之前,开始将橡胶组合物、
硫供体和含
硫原子的
硫化
促进剂混炼在一起;然后将填料添加到得到的混炼产品中,并在 120°C 或更高的混炼温度下进行混炼。根据本发明的制造方法,可以制造出具有良好断裂性能的轮胎橡胶组合物和轮胎。