title: Novel time-temperature and 'consume-within' indicator based on gas-diffusion.
abstract: The novel time-temperature indicator label comprises an ammonia sensitive indicator layer film pressed onto a second film, comprising an ammonia-generating, adhesive layer. When separated the blue-coloured indicator film reverts back to its original (ammonia free) yellow form at a controllable, temperature dependant rate. The labels are easily made and stored.
authors.affiliation: School of Chemistry and Chemical Engineering, Queens University Belfast, Stranmillis Road, BT95AG, UK. andrew.mills@qub.ac.uk.
authors.forename: A
authors.initials: A
authors.lastname: Mills
authors.affiliation: School of Chemistry and Chemical Engineering, Queens University Belfast, Stranmillis Road, BT95AG, UK. andrew.mills@qub.ac.uk.
authors.forename: D
authors.initials: D
authors.lastname: Hawthorne
authors.affiliation: School of Chemistry and Chemical Engineering, Queens University Belfast, Stranmillis Road, BT95AG, UK. andrew.mills@qub.ac.uk.
authors.forename: A
authors.initials: A
authors.lastname: Graham
authors.affiliation: School of Chemistry and Chemical Engineering, Queens University Belfast, Stranmillis Road, BT95AG, UK. andrew.mills@qub.ac.uk.
authors.forename: K
authors.initials: K
authors.lastname: Lawrie