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Discoloration Cotton Swab / Cotton Swab

Discoloration Cotton Swab

In the post-epidemic era, the number of vaccinations is huge, but there are still many inconveniences in the vaccination process. This design is used to remind the user of the time to press the wound after taking the vaccine under the epidemic situation. A fan-shaped cotton swab head is used to increase the contact area when pressing, and a safe and easily oxidized substance is added to the cotton head. When the cotton swab is in the air for more than three minutes, the blue color gradually turns pale to remind the user that the pressing time is up.


Zhejiang University of Technology

Zhejiang University of Technology
Hangzhou, China

Yifan Zhang,
Zhejiang University of Technology

Mingnan Lin,
Zhejiang University of Technology