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. 2024 Jun 7;14(3):20230073. doi: 10.1098/rsfs.2023.0073

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© 2024 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Canadian $5 bill sealed in a transparent PP pouch with different scattering polyolefin fabrics and films on top for visual comparison of opacity — Canadian $5 bill sealed in a transparent PP pouch with different scattering polyolefin fabrics and films on top for visual comparison of opacity. (a) $5 bill under a transparent PP film. (b) bill observed through PP mesh, (c) bill observed through PP filter, (d) bill observed through 12 µm thick PE film, (e) bill observed through a delaminated Tyvek 400 fabric and (f) bill observed through a delaminated Tyvek fabric.