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

Research output: Contribution to journalArticle

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.
LanguageEnglish
JournalFood Packing and Shelf Life
Volume22
Early online date16 Sep 2019
DOIs
Publication statusEarly online date - 16 Sep 2019

Fingerprint

Food Packaging
food packaging
adhesives
Adhesives
Packaging
carbon dioxide
films (materials)
Tapes
polymers
Polymers
Emblems and Insignia
Color
Phenolsulfonphthalein
Technology
Temperature
color
freshness
Pigments
Silicon Dioxide
silica

Cite this

@article{c8828709b0d14a6d8046a3e435ddec09,
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.",
author = "Andrew Mills and Dilidaer Yusufu and Chenying Wang",
year = "2019",
month = "9",
day = "16",
doi = "10.1016/j.fpsl.2019.100395",
language = "English",
volume = "22",
journal = "Food Packing and Shelf Life",
issn = "2214-2894",
publisher = "Elsevier BV",

}

A Smart Adhesive 'Consume Within' (CW) Indicator for Food Packaging. / Mills, Andrew; Yusufu, Dilidaer; Wang, Chenying.

In: Food Packing and Shelf Life, Vol. 22, 16.09.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A Smart Adhesive 'Consume Within' (CW) Indicator for Food Packaging

AU - Mills, Andrew

AU - Yusufu, Dilidaer

AU - Wang, Chenying

PY - 2019/9/16

Y1 - 2019/9/16

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.

U2 - 10.1016/j.fpsl.2019.100395

DO - 10.1016/j.fpsl.2019.100395

M3 - Article

VL - 22

JO - Food Packing and Shelf Life

T2 - Food Packing and Shelf Life

JF - Food Packing and Shelf Life

SN - 2214-2894

ER -