A smart adhesive 'consume within' (CW) indicator for food packaging

Andrew Mills; Dilidaer Yusufu; Chenying Wang

doi:10.1016/j.fpsl.2019.100395

A smart adhesive 'consume within' (CW) indicator for food packaging

Andrew Mills, Dilidaer Yusufu, Chenying Wang

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

262 Downloads (Pure)

Abstract

A CO2-sensitive, smart adhesive is reported in which a CO2-sensitive pigment, comprising the pH-sensitive dye, phenol red, PR, coated onto nano-particulate silica particles, is dispersed in a hot melt, pressure sensitive adhesive. A CO2-sensitive, brightly coloured adhesive tape is produced by coating the smart adhesive onto a polymer 'barrier' film substrate. When placed inside on the plastic lidding of a CO2 MAPed package, the smart adhesive-based indicator changes to an orange/yellow colour due to the presence of the CO2, and returns to its original deep purple colour upon exposure to air, at a rate that depends upon temperature and the CO2 permeability and thickness of the polymer barrier film. The smart adhesive tape is used as a 'consume within', CW, indicator for refrigerated goods and briefly compared in performance to the more complex 'After Opening Freshness' indicator produced recently by Insignia Technologies Ltd. Other potential time-temperature applications of this new technology are discussed briefly.

Original language	English
Article number	100395
Number of pages	8
Journal	Food Packing and Shelf Life
Volume	22
Early online date	16 Sept 2019
DOIs	https://doi.org/10.1016/j.fpsl.2019.100395
Publication status	Published - 07 Dec 2019

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A Smart Adhesive 'Consume Within' (CW) Indicator for Food Packaging
Copyright 2019 Elsevier. This manuscript is distributed under a Creative Commons Attribution-NonCommercial-NoDerivs License (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits distribution and reproduction for non-commercial purposes, provided the author and source are cited.
Accepted author manuscript, 246 KBLicence: CC BY-NC-ND

A Smart Adhesive 'Consume Within' (CW) Indicator for Food Packaging
Mills, A. (Creator), Yusufu, D. (Creator) & Wang, C. (Creator), Queen's University Belfast, 16 Sept 2019
DOI: 10.17034/61ca3f44-8a92-419d-90c8-176f08c524a4
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Novel optical CO2 sensors and their application
Yusufu, D. (Author), Mills, A. (Supervisor), Dec 2019
Student thesis: Doctoral Thesis › Doctor of Philosophy

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title = "A smart adhesive 'consume within' (CW) indicator for food packaging",

abstract = "A CO2-sensitive, smart adhesive is reported in which a CO2-sensitive pigment, comprising the pH-sensitive dye, phenol red, PR, coated onto nano-particulate silica particles, is dispersed in a hot melt, pressure sensitive adhesive. A CO2-sensitive, brightly coloured adhesive tape is produced by coating the smart adhesive onto a polymer 'barrier' film substrate. When placed inside on the plastic lidding of a CO2 MAPed package, the smart adhesive-based indicator changes to an orange/yellow colour due to the presence of the CO2, and returns to its original deep purple colour upon exposure to air, at a rate that depends upon temperature and the CO2 permeability and thickness of the polymer barrier film. The smart adhesive tape is used as a 'consume within', CW, indicator for refrigerated goods and briefly compared in performance to the more complex 'After Opening Freshness' indicator produced recently by Insignia Technologies Ltd. Other potential time-temperature applications of this new technology are discussed briefly.",

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AU - Mills, Andrew

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N2 - A CO2-sensitive, smart adhesive is reported in which a CO2-sensitive pigment, comprising the pH-sensitive dye, phenol red, PR, coated onto nano-particulate silica particles, is dispersed in a hot melt, pressure sensitive adhesive. A CO2-sensitive, brightly coloured adhesive tape is produced by coating the smart adhesive onto a polymer 'barrier' film substrate. When placed inside on the plastic lidding of a CO2 MAPed package, the smart adhesive-based indicator changes to an orange/yellow colour due to the presence of the CO2, and returns to its original deep purple colour upon exposure to air, at a rate that depends upon temperature and the CO2 permeability and thickness of the polymer barrier film. The smart adhesive tape is used as a 'consume within', CW, indicator for refrigerated goods and briefly compared in performance to the more complex 'After Opening Freshness' indicator produced recently by Insignia Technologies Ltd. Other potential time-temperature applications of this new technology are discussed briefly.

AB - A CO2-sensitive, smart adhesive is reported in which a CO2-sensitive pigment, comprising the pH-sensitive dye, phenol red, PR, coated onto nano-particulate silica particles, is dispersed in a hot melt, pressure sensitive adhesive. A CO2-sensitive, brightly coloured adhesive tape is produced by coating the smart adhesive onto a polymer 'barrier' film substrate. When placed inside on the plastic lidding of a CO2 MAPed package, the smart adhesive-based indicator changes to an orange/yellow colour due to the presence of the CO2, and returns to its original deep purple colour upon exposure to air, at a rate that depends upon temperature and the CO2 permeability and thickness of the polymer barrier film. The smart adhesive tape is used as a 'consume within', CW, indicator for refrigerated goods and briefly compared in performance to the more complex 'After Opening Freshness' indicator produced recently by Insignia Technologies Ltd. Other potential time-temperature applications of this new technology are discussed briefly.

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DO - 10.1016/j.fpsl.2019.100395

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A smart adhesive 'consume within' (CW) indicator for food packaging

Abstract

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A Smart Adhesive 'Consume Within' (CW) Indicator for Food Packaging

Student theses

Novel optical CO2 sensors and their application

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