Packaging material comprising indicator responding to an external stimulus

• Main Authors: BLYTH, Stuart Mackintosh, SCAROLA, Leonard, ZERFAS, Paul Anthony, POITEVIN, Patrick Jules Joseph, WEBER, Jeffrey Thomas
• Format: Patent
• Language: English
• Published: 25.11.2021
• Subjects: BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS OR TEST PAPERS THEREFOR; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL ORENZYMOLOGICAL PROCESSES; ENZYMOLOGY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEICACIDS OR MICROORGANISMS; METALLURGY; MICROBIOLOGY; MUTATION OR GENETIC ENGINEERING; PHYSICS; PROCESSES OF PREPARING SUCH COMPOSITIONS; SPIRITS; TESTING; VINEGAR; WINE

INKLESS PRINTING ON SUBSTRATES AND COMESTIBLES A packaging material for use in a package having contents including a food item. The packaging material comprises a layer including an additive transformable from a first state to a second state in response to an external stimulus and a barrier layer positionable between said layer and the contents of the package, wherein said barrier layer restricts diffusion of said additive to the contents. 18186372_1 (GHMatters) P112111.AU.1 00 00 00 /00 0 000000000 00 0 K 0 0 0 0 0 00000 0 0 0 O0 0 O O O O OO OO O 00000 0 0000000000 0 000 00 0 000 0 0000 000000 O OOO 000 0 0 000 0 0 0 0 0 0 0 0000 OOOO O0000000000000000000000000