2020 Shanghai Department Store Exhibition

2022上海百货展会

I. Definition and Principles
A vacuum cup is a container that achieves insulation through vacuum insulation technology, mainly consisting of an inner胆 made of stainless steel or glass, a vacuum layer, and a sealed lid. Its core principle is based on the three laws of thermodynamics:

Vacuum Insulation: The vacuum layer between the inner胆 and the outer shell blocks heat conduction and convection;

Radiation Reflection: The silver or copper coating on the inner胆 reflects thermal radiation, reducing heat loss;

Sealing Design: The stopper or cup lid uses food-grade silicone/PP material to prevent air from entering.

II. Development History
Origin: Evolved from traditional thermos bottles, portable versions were achieved through vacuum technology improvements in the late 19th century;

Material Iteration: Developed from early glass inner胆s to stainless steel (from 201 to 304 to 316), with

Related blogs