Method for manufacturing food indicator
AssigneeCj Cheiljedang Corporation
InventorsGrace Kim, Do Wan Kim, Kyoung Sik Cho, Seok Jun Hong
Life of this patent
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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.
Claims16
A method for manufacturing an indicator for food, the method comprising:
- bonding a first film, on which an indicator layer comprising 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 face each other,
- wherein the indicator layer further comprises a white ink layer on one surface facing the adhesive layer, and
- in the bonding of the first film and the second film, the first film and the second film are bonded so that the white ink layer and the adhesive layer are brought into contact.
Dependencies are inferred from the claim text.