Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:


Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

Arch-cap / soda cap


When people purchase or carry carbonated beverage, they have no judgement of the inside pressure and it possibly causes liquid splash due to temperature increase or bottle sloshing.
This design helps make the right judgement of opening bottle caps by means of cap deformation.The top of caps stays sunken under normal pressure. Inside pressure increases when carbon dioxide is being decomposed.Then the bulge of the top follows.It is recommended to open the bottle when the top becomes sunken.


Jiangnan university

Jiangnan university
Wuxi, China


Jiangnan university

Jiangnan university
Wuxi, China

Zhou ziyu Lu Xiangyi An jingrui