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Recent Advances on Thermochromic Inks for Security Applications

2025Recensão Acesso aberto
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dc.contributor.authorOliveira, Duarte B.
dc.contributor.authorAraújo, Andreia
dc.contributor.authorFortunato, Elvira
dc.contributor.authorMartins, Rodrigo
dc.contributor.authorCorvo, Marta C.
dc.contributor.authorCarlos, Emanuel
dc.contributor.institutionCENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)
dc.contributor.institutionDCM - Departamento de Ciência dos Materiais
dc.contributor.pblWiley
dc.date.accessioned2026-03-09T15:58:01Z
dc.date.available2026-03-09T15:58:01Z
dc.date.issued2025
dc.descriptionPublisher Copyright: © 2025 The Author(s). Advanced Materials Technologies published by Wiley-VCH GmbH.
dc.description.abstractIn the security printing industry, high complexity stimuli-responsive functional inks have been used to develop anti-counterfeit elements, such as authentication markers and encrypted patterns. Through these applications, they create more reliable products, reduce economic losses, help retain brand identity, and assist in identifying counterfeit products. Thermochromic inks, owing to their temperature-responsive color-shifts, have gained considerable interest in the last decade as functional inks in a variety of fields. Here, we outline the different types of thermochromic materials, their properties, development scales, and how they have been previously applied, with a focus on their use as security inks for anti-counterfeit elements. Despite promising functional properties, thermochromic materials are hindered from use by low stability, generally high toxicity, and a lack of printing optimization. In recent years, however, efforts have been made to enhance their durability and sustainability, along with an improved understanding of their thermochromic transitions and novel ink formulations, granting great promise for more diverse and specialized applications. Additionally, their integration alongside other functional materials has promoted the development of multilevel high-security elements with potential for future anti-counterfeit technologies. In this review, we highlight recent advancements in property enhancement, sustainable development, and scalability of thermochromic security inks.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent6034152
dc.identifier.doi10.1002/admt.202501437
dc.identifier.issn2365-709X
dc.identifier.otherPURE: 151328630
dc.identifier.otherPURE UUID: 81a37fd1-c39a-4f83-a957-d5b44740eb3d
dc.identifier.otherScopus: 105024344843
dc.identifier.otherWOS: 001633924600001
dc.identifier.urihttp://hdl.handle.net/10362/201146
dc.identifier.urlhttps://www.scopus.com/pages/publications/105024344843
dc.language.isoeng
dc.peerreviewedyes
dc.subjectanti-counterfeiting
dc.subjectfunctional security inks
dc.subjectprinting
dc.subjectsustainability
dc.subjectthermochromic materials
dc.subjectGeneral Materials Science
dc.subjectMechanics of Materials
dc.subjectIndustrial and Manufacturing Engineering
dc.titleRecent Advances on Thermochromic Inks for Security Applicationsen
dc.typereview
degois.publication.titleAdvanced Materials Technologies
dspace.entity.typePublication
rcaap.rightsopenAccess

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