Preparation method of food indicator

• Main Authors: KIM DO-WAN, HONG SEOK-JUN, KING GRACE, JO KYOUNG-SIK
• Format: Patent
• Language: Chinese; English
• Published: 22.07.2022
• Subjects: ADVERTISING; CRYPTOGRAPHY; DISPLAY; DISPLAYING; EDUCATION; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; LABELS OR NAME-PLATES; MEASURING; PHYSICS; SEALS; SIGNS; TESTING

The present application relates to a method for preparing a food indicator, a food indicator prepared therefrom, and a method for inspecting a storage state of a food product using the food indicator, the food indicator being capable of visually inspecting a change in quality of the food product in a packaged state. The preparation method of the food indicator of the present application includes combining a first film having an indicator layer including a pH-sensitive indicator formed on one surface thereof and a second film having an adhesive layer formed on one surface thereof, the indicator layer of the first film and the adhesive layer of the second film may face each other. 本申请涉及用于制备食品指示剂的方法，由其制备的食品指示剂以及使用所述食品指示剂来检查食品的储存状态的方法，所述食品指示剂能够目测检查在包装状态下的食品的品质变化。本申请的食品指示剂的制备方法包括结合第一膜和第二膜，在所述第一膜的一个表面上形成有包括pH灵敏的指示剂的指示剂层，在所述第二膜的一个表面上形成有粘合剂层，使得所述第一膜的指示剂层和所述第二膜的粘合剂层可以彼此面对。