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Parents have babies especially beginner level are hard to know state of baby's diaper. Whenever their baby cry, they take off or smell, touch the diaper to check diaper's state. This process is very combersome.
But this "Showing Diaper" is very easy to know inside of diaper, wheter baby took a pee or shit. By using chameleon fiber changing according to the temperature and concentration, color of diaper's edge is change to yellow or red. So parents can easily know just see diaper's line color.
Hong ik University
Seoul, South Korea
In, Chi ho
Korea (South Korea)
Gangseo-gu, South Korea
An, Seok young