Method for manufacturing food indicator
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United States of America Patent
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Aug 20, 2024
Grant Date -
Feb 9, 2023
app pub date -
Dec 24, 2020
filing date -
Dec 24, 2020
priority date (Note) -
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Abstract
The present application relates to a method for manufacturing an indicator for food that can visually check the quality change in food in a package state, an indicator for food manufactured therefrom, and a method for checking the storage status of food using the same. The manufacturing method of an indicator for food of the present application includes bonding a first film, on which an indicator layer including a pH-sensitive indicator is formed on one surface thereof, and a second film, on which an adhesive layer is formed on one surface thereof, so that the indicator layer of the first film and the adhesive layer of the second film can face each other.
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