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Effect of plasma treatment on improving liquid retention capacity of capillary recesses for food packaging applications

Alaa Alaizoki, Christopher Phillips Orcid Logo, David Parker, Craig Hardwick, Christian Griffiths, Davide Deganello Orcid Logo

Food Packaging and Shelf Life, Volume: 30, Start page: 100759

Swansea University Authors: Alaa Alaizoki, Christopher Phillips Orcid Logo, Christian Griffiths, Davide Deganello Orcid Logo

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DOI (Published version): 10.1016/j.fpsl.2021.100759

Abstract

Liquid residue is a major issue in fresh food packaging, especially for meat products. This work investigates capillary recesses directly integrated into PET packaging film, with targeted plasma treatment of the recesses to enhance their liquid retention capacity. Localised oxygen plasma treatment (...

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Published in: Food Packaging and Shelf Life
ISSN: 2214-2894
Published: Elsevier BV 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa58263
first_indexed 2021-10-07T09:42:07Z
last_indexed 2023-01-11T14:38:45Z
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This work investigates capillary recesses directly integrated into PET packaging film, with targeted plasma treatment of the recesses to enhance their liquid retention capacity. Localised oxygen plasma treatment (oxygen flow rate: 80 cm3/min, pressure: 0.14 mbar, power: 240 W) of PET recesses introduced polar oxygen groups onto their surface and increased their wettability. It is proposed that the difference in wetting characteristics of the recesses and rest of the packaging surface enhanced the capillary valve effect, which dramatically increased the liquid retention capacity. Untreated recess samples (diameter: 9 mm) had retention capacity of around 0.70 g, which increased to 1.50 g after localised O2 plasma treatment. Even after aging of over 60 days, the plasma-treated recesses maintained the enhanced retention capabilities. The estimated resulting retention capacity of recesses of diameter 9 mm was 2972 &#xB1; 62 mL/m2, which is comparable with conventional absorbent pads (3000 mL/m2). 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spelling 2022-10-31T15:38:48.1815659 v2 58263 2021-10-07 Effect of plasma treatment on improving liquid retention capacity of capillary recesses for food packaging applications c5618f5c345dda45cce44d651583aed3 Alaa Alaizoki Alaa Alaizoki true false cc734f776f10b3fb9b43816c9f617bb5 0000-0001-8011-710X Christopher Phillips Christopher Phillips true false 84c202c256a2950fbc52314df6ec4914 Christian Griffiths Christian Griffiths true false ea38a0040bdfd3875506189e3629b32a 0000-0001-8341-4177 Davide Deganello Davide Deganello true false 2021-10-07 Liquid residue is a major issue in fresh food packaging, especially for meat products. This work investigates capillary recesses directly integrated into PET packaging film, with targeted plasma treatment of the recesses to enhance their liquid retention capacity. Localised oxygen plasma treatment (oxygen flow rate: 80 cm3/min, pressure: 0.14 mbar, power: 240 W) of PET recesses introduced polar oxygen groups onto their surface and increased their wettability. It is proposed that the difference in wetting characteristics of the recesses and rest of the packaging surface enhanced the capillary valve effect, which dramatically increased the liquid retention capacity. Untreated recess samples (diameter: 9 mm) had retention capacity of around 0.70 g, which increased to 1.50 g after localised O2 plasma treatment. Even after aging of over 60 days, the plasma-treated recesses maintained the enhanced retention capabilities. The estimated resulting retention capacity of recesses of diameter 9 mm was 2972 ± 62 mL/m2, which is comparable with conventional absorbent pads (3000 mL/m2). This demonstrated the viability of applying plasma treatment in food packaging to effectively isolate any excessive exudate using only the packaging film. Journal Article Food Packaging and Shelf Life 30 100759 Elsevier BV 2214-2894 PET; Oxygen plasma; Wettability; Capillary valves; Meat exudate 1 12 2021 2021-12-01 10.1016/j.fpsl.2021.100759 COLLEGE NANME COLLEGE CODE Swansea University External research funder(s) paid the OA fee (includes OA grants disbursed by the Library) EPSRC; European Regional Development Fund through the Welsh Government (80708) and the Ser Solar project via Welsh Government EP/L015099/1, EP/M028267/1 2022-10-31T15:38:48.1815659 2021-10-07T10:41:03.1341950 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Alaa Alaizoki 1 Christopher Phillips 0000-0001-8011-710X 2 David Parker 3 Craig Hardwick 4 Christian Griffiths 5 Davide Deganello 0000-0001-8341-4177 6 58263__21171__26b42bce6dfd40a5aa33ff9b95a5705e.pdf 58263.pdf 2021-10-14T12:23:08.9179111 Output 4125655 application/pdf Version of Record true © 2021 The Authors. This is an open access article under the CC BY license true eng http://creativecommons.org/licenses/by/4.0/
title Effect of plasma treatment on improving liquid retention capacity of capillary recesses for food packaging applications
spellingShingle Effect of plasma treatment on improving liquid retention capacity of capillary recesses for food packaging applications
Alaa Alaizoki
Christopher Phillips
Christian Griffiths
Davide Deganello
title_short Effect of plasma treatment on improving liquid retention capacity of capillary recesses for food packaging applications
title_full Effect of plasma treatment on improving liquid retention capacity of capillary recesses for food packaging applications
title_fullStr Effect of plasma treatment on improving liquid retention capacity of capillary recesses for food packaging applications
title_full_unstemmed Effect of plasma treatment on improving liquid retention capacity of capillary recesses for food packaging applications
title_sort Effect of plasma treatment on improving liquid retention capacity of capillary recesses for food packaging applications
author_id_str_mv c5618f5c345dda45cce44d651583aed3
cc734f776f10b3fb9b43816c9f617bb5
84c202c256a2950fbc52314df6ec4914
ea38a0040bdfd3875506189e3629b32a
author_id_fullname_str_mv c5618f5c345dda45cce44d651583aed3_***_Alaa Alaizoki
cc734f776f10b3fb9b43816c9f617bb5_***_Christopher Phillips
84c202c256a2950fbc52314df6ec4914_***_Christian Griffiths
ea38a0040bdfd3875506189e3629b32a_***_Davide Deganello
author Alaa Alaizoki
Christopher Phillips
Christian Griffiths
Davide Deganello
author2 Alaa Alaizoki
Christopher Phillips
David Parker
Craig Hardwick
Christian Griffiths
Davide Deganello
format Journal article
container_title Food Packaging and Shelf Life
container_volume 30
container_start_page 100759
publishDate 2021
institution Swansea University
issn 2214-2894
doi_str_mv 10.1016/j.fpsl.2021.100759
publisher Elsevier BV
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
document_store_str 1
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description Liquid residue is a major issue in fresh food packaging, especially for meat products. This work investigates capillary recesses directly integrated into PET packaging film, with targeted plasma treatment of the recesses to enhance their liquid retention capacity. Localised oxygen plasma treatment (oxygen flow rate: 80 cm3/min, pressure: 0.14 mbar, power: 240 W) of PET recesses introduced polar oxygen groups onto their surface and increased their wettability. It is proposed that the difference in wetting characteristics of the recesses and rest of the packaging surface enhanced the capillary valve effect, which dramatically increased the liquid retention capacity. Untreated recess samples (diameter: 9 mm) had retention capacity of around 0.70 g, which increased to 1.50 g after localised O2 plasma treatment. Even after aging of over 60 days, the plasma-treated recesses maintained the enhanced retention capabilities. The estimated resulting retention capacity of recesses of diameter 9 mm was 2972 ± 62 mL/m2, which is comparable with conventional absorbent pads (3000 mL/m2). This demonstrated the viability of applying plasma treatment in food packaging to effectively isolate any excessive exudate using only the packaging film.
published_date 2021-12-01T20:18:26Z
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score 11.047609

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