Insulated double-layer hollow cup

Insulated double-layer hollow cup is a cup designed with a double-layer structure, mainly used to maintain the temperature of liquids while preventing the external temperature from affecting the internal liquid. The double-layer hollow structure plays a role in insulation or cooling by reducing heat conduction, convection, and radiation. The air gap between the inner and outer layers greatly reduces the conduction of heat between the layers, which is the main reason for the poor insulation effect of single-layer cups. For hot drinks, insulated cups can significantly prolong the time for liquids to maintain high temperatures; For cold drinks, it can effectively reduce the entry of external heat, thereby maintaining the low temperature of the beverage. The insulated double-layer hollow cup is also equipped with a sealing cover to further enhance its insulation effect and prevent liquid overflow.