Residue-free material bottle

The material bottle comprises an inner container, a bottle neck is fixedly installed at the upper end of the inner container, the bottle neck is of a thin-end-down structure, a clamping ring is fixedly installed on the upper portion of the outer surface of the bottle neck, a shell is fixedly connected to the outer surface of the inner container in a sleeved mode, and the shell is of a cavity structure. Four outer limiting sliding grooves are formed in the outer surface of the shell and distributed in an annular array mode with the bottle neck as the center, a cleaning assembly is jointly arranged in the four outer limiting sliding grooves and extends to the inner container, and a holding ring is arranged on the outer side of the cleaning assembly and located on the outer side of the shell. A base plate is fixedly installed at the lower end of the inner container and the lower end of the shell. According to the residue-free material bottle, the cleaning function is achieved through the cleaning assembly and th