A water-soluble label for food products prevents packaging waste and counterfeiting.
Nat Food
; 5(4): 293-300, 2024 Apr.
Article
em En
| MEDLINE
| ID: mdl-38575840
ABSTRACT
Sustainability, humidity sensing and product origin are important features of food packaging. While waste generated from labelling and packaging causes environmental destruction, humidity can result in food spoilage during delivery and counterfeit-prone labelling undermines consumer trust. Here we introduce a food label based on a water-soluble nanocomposite ink with a high refractive index that addresses these issues. By patterning the nanocomposite ink using nanoimprint lithography, the resultant metasurface shows bright and vivid structural colours. This method makes it possible to quickly and inexpensively create patterns on large surfaces. A QR code is also developed that can provide up-to-date information on food products. Microprinting hidden in the QR code protects against counterfeiting, cannot be physically detached or replicated and may be used as a humidity indicator. Our proposed food label can reduce waste while ensuring customers receive accurate product information.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Água
/
Embalagem de Alimentos
/
Rotulagem de Alimentos
Idioma:
En
Revista:
Nat Food
Ano de publicação:
2024
Tipo de documento:
Article