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Many parents have a great distress that they cant know the exact time to change paper diaper for their babies, but this design could solve this problem in concise and effective way! A pH test strip in the paper diaper can give a clue to the parents when they can replace the paper diaper, through the color changing caused by urine and dejecta pH value alteration. it may remind parents to replace the paper diaper, which could give a healthy environment for the baby and prevent their sensitive skin from the dermatitis, skin allergy and other diseases.
lu Liu;Li Ma;Yuan Gao;Xiaoliang Wang