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Smile sticker for Kids / Smile sticker for Kids

Smile sticker for Kids
Smile sticker for Kids

Is food fresh or not? Kids doesn't understand how the fresh status of food, because they are too young can’t read the words or number of storage life, they always casually take the bad food from refrigerator to eat and cause they sick. Today, that is so simple method, using special ink print multi layer stick on the paper, while begin from food to be made, this sticker have began to chemical reaction with air, the pattern will from smile to cry. Smile sticker to ensure kid’s healthy while they ate foods, the other hand also reminds us food's situation, to avoid wasting food.


National Cheng Kung University

National Cheng Kung University
Tainan, Taiwan

National Cheng Kung University

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