Printed food freshness intelligent label, production method and application

Abstract

The invention discloses a printed food freshness intelligent label, a production method and application. The production method of the printed food freshness intelligent label includes the following steps of 1) adding a certain amount of binders to water and stirring until solids are completely dissolved, then adding natural pigment powders, plasticizers and antifoaming agents in sequence, stirringcontinuously and uniformly to carry out pre-dispersion and then fully ball-milling to obtain freshness indicator ink; and 2) printing the freshness indicator ink on printed materials by a printing method, and sealing a layer of organic silicone oil after the imprinting is dried, and thus obtaining the printed food freshness intelligent label. The printed food freshness intelligent label producedby the production method is applied in food packaging of fish, meats and eggs to achieve real-time monitoring of food freshness. The method is simple and convenient, and the printed food freshness intelligent label is natural and non-toxic, good in stability and high sensitive, so that mass production of indicator labels can be achieved and the printed food freshness intelligent label has broad application prospects.

Description

technical field [0001] The invention belongs to the technical field of organic chemistry and material preparation, and in particular relates to a printed food freshness smart label, its production method and application. Background technique [0002] With the rapid development of the economy, people's living standards have been improved, and people's attention to food quality has gradually increased. However, the following problems still exist in the field of food packaging: First, food safety issues occur frequently, and the delayed transmission of food freshness information leads to a large amount of food corruption and food waste, causing huge waste of resources and economics for consumers and manufacturers. Second, at present, my country usually uses sampling testing for food quality testing. Although the testing instruments are relatively advanced, the testing steps are cumbersome, expensive, high cost, time-consuming, and can only be tested before packaging, which canno...

AI Technical Summary

Problems solved by technology

However, the following problems still exist in the field of food packaging: First, food safety issues occur frequently, and the delayed transmission of food freshness information leads to a large amount of food corruption and food waste, causing huge waste of resources and economics for consumers and manufacturers. Second, at present, my country usually uses sampling testing for food quality testing. Although the testing instruments are relatively advanced, the testing steps are cumbersome, expensive, high cost, time-consuming, and can only be tested before packaging, which cannot be achieved in real time. Monitor food quality; Third, the three functions of traditional packaging, namely protection, circulation, and storage, can no longer meet the new needs of the food industry

[0004] In summary, the current methods of preparing indicator labels are mainly focused on electrodeposition film, casting film, coating layer, or soaking. The production steps are relatively complicated and the production efficiency is low. , it is necessary to provide a smart label and its manufacturing method that can solve the above shortcomings

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