Metal Packaging: From Monolithic Containers to Hybrid Architectures.
Level 5 - mechanism / opinion, no new human data
Narrative review of materials science and regulatory frameworks; Level 5 by design analogy.
PubMed 41900669 · doi:10.3390/ma19061177
What was done
The authors reviewed metal-based packaging architectures across rigid, semi-rigid, and flexible formats (including aluminum alloys, tinplate, tin-free steel, stainless steels, metal-matrix composites, and metal-polymer or metal-paper laminates). The review evaluated how composition, microstructure, processing routes, and surface engineering impact functional performance, corrosion, ion migration, coating integrity, safety regulations (EU, FDA, ISO), and circularity/recyclability.
What was found
The abstract provides a descriptive overview of materials design, regulatory transitions (such as moving from BPA-based epoxy linings to BPA-free and hybrid coating chemistries), and life-cycle management, but reports no quantitative metrics, experimental data, or numerical findings.
Why it matters
It provides a unified material and regulatory framework linking metallurgical design and hybrid lamination to functional reliability, chemical safety, and end-of-life recycling across consumer goods, pharmaceutical, cosmetic, and technical packaging industries.
Limits
As a narrative review, it lacks a systematic literature search methodology, quantitative meta-analysis, or primary experimental datasets. Specific performance metrics and comparisons between alloy formulations or laminate layers are not quantified in the abstract.
Cited by
- supports Metal food cans are lined with bisphenol unless explicitly specified otherwise by the manufacturer.