Use of Long-Chain Synthetic Phenolic Antioxidants to Produce Chromium Tanned Leather without Risk of Hexavalent Chromium Formation

Es disposa del permís exprés de l’editor per a la inclusió i difusió d’aquest document al repositori institucional.

Detalhes bibliográficos
Autores: Compte, Irene, Torras, Quim, Izquierdo Buera, Francina, Cuadros Domènech, Rosa, Bacardit i Dalmases, Anna
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Recursos:Universitat de Lleida (UdL)
Repositorio:Repositori Obert UdL
OAI Identifier:oai:repositori.udl.cat:10459.1/469464
Acesso em linha:https://doi.org/10.34314/jalca.v118i10
https://hdl.handle.net/10459.1/469464
Access Level:acceso abierto
Palavra-chave:Leather tanning
Synthetic antioxidant
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spelling Use of Long-Chain Synthetic Phenolic Antioxidants to Produce Chromium Tanned Leather without Risk of Hexavalent Chromium FormationCompte, IreneTorras, QuimIzquierdo Buera, FrancinaCuadros Domènech, RosaBacardit i Dalmases, AnnaLeather tanningSynthetic antioxidantEs disposa del permís exprés de l’editor per a la inclusió i difusió d’aquest document al repositori institucional.Chromium tanned leather is the widest form of leather tanning across the world, but it might involve a risk of hexavalent chromium formation, which is restricted in leather products above 3 mg/kg. Among other conditions, certain processes might lead to the oxidation of natural fats or fatliquoring agents with unsaturated carbon-carbon bonds, thus generating free radical molecules that can contribute to the Cr(III) oxidation to Cr(VI). The auto oxidation of unsaturated lipids is promoted by exposure to high temperatures and light, specifically UV radiation. Among other relevant manufacturing practices, the addition of synthetic phenolic antioxidants (SPAs) during the synthesis of fatliquoring agents or during leather manufacturing can be a relevant tool for preventing lipid auto-oxidation.The efficiency of the long-chain synthetic antioxidant 1135 (AO1135, CAS RN degrees 125643-61-0) has been assessed for Cr(VI) prevention. The performance of AO1135 has been tested in two different skin types (sheepskin, woolly sheepskin), with two different fatliquoring agents (unprotected and protected against oxidation). The protected fatliquoring agent was formulated with AO1135. Also, two commercial products that contain the AO1135 in its formulation have been applied to leathers. Upon completion of the post-tanning process, the leathers have undergone two different thermal ageing processes.AO1135 has been verified an effective SPA for Cr(VI) prevention and its application during the post-tanning process does not alter the visual aspect of the leathers. Otherwise, if the post-tanning recipe does not contain well-sourced raw materials or Cr(VI) prevention tools, unsaturated fatliquoring agents or natural fats present in the skins can be a cause for Cr(VI) formation.The American Leather Chemists Association2023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://doi.org/10.34314/jalca.v118i10https://hdl.handle.net/10459.1/469464reponame:Repositori Obert UdL instname:Universitat de Lleida (UdL)InglésReproducció del document publicat a https://doi.org/10.34314/jalca.v118i10The Journal of the American Leather Chemists Association, 2023, vol. 118, núm. 10, p. 439-449.(c) The American Leather Chemists Association, 2023info:eu-repo/semantics/openAccessoai:repositori.udl.cat:10459.1/4694642026-06-24T12:42:17Z
dc.title.none.fl_str_mv Use of Long-Chain Synthetic Phenolic Antioxidants to Produce Chromium Tanned Leather without Risk of Hexavalent Chromium Formation
title Use of Long-Chain Synthetic Phenolic Antioxidants to Produce Chromium Tanned Leather without Risk of Hexavalent Chromium Formation
spellingShingle Use of Long-Chain Synthetic Phenolic Antioxidants to Produce Chromium Tanned Leather without Risk of Hexavalent Chromium Formation
Compte, Irene
Leather tanning
Synthetic antioxidant
title_short Use of Long-Chain Synthetic Phenolic Antioxidants to Produce Chromium Tanned Leather without Risk of Hexavalent Chromium Formation
title_full Use of Long-Chain Synthetic Phenolic Antioxidants to Produce Chromium Tanned Leather without Risk of Hexavalent Chromium Formation
title_fullStr Use of Long-Chain Synthetic Phenolic Antioxidants to Produce Chromium Tanned Leather without Risk of Hexavalent Chromium Formation
title_full_unstemmed Use of Long-Chain Synthetic Phenolic Antioxidants to Produce Chromium Tanned Leather without Risk of Hexavalent Chromium Formation
title_sort Use of Long-Chain Synthetic Phenolic Antioxidants to Produce Chromium Tanned Leather without Risk of Hexavalent Chromium Formation
dc.creator.none.fl_str_mv Compte, Irene
Torras, Quim
Izquierdo Buera, Francina
Cuadros Domènech, Rosa
Bacardit i Dalmases, Anna
author Compte, Irene
author_facet Compte, Irene
Torras, Quim
Izquierdo Buera, Francina
Cuadros Domènech, Rosa
Bacardit i Dalmases, Anna
author_role author
author2 Torras, Quim
Izquierdo Buera, Francina
Cuadros Domènech, Rosa
Bacardit i Dalmases, Anna
author2_role author
author
author
author
dc.subject.none.fl_str_mv Leather tanning
Synthetic antioxidant
topic Leather tanning
Synthetic antioxidant
description Es disposa del permís exprés de l’editor per a la inclusió i difusió d’aquest document al repositori institucional.
publishDate 2023
dc.date.none.fl_str_mv 2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.34314/jalca.v118i10
https://hdl.handle.net/10459.1/469464
url https://doi.org/10.34314/jalca.v118i10
https://hdl.handle.net/10459.1/469464
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a https://doi.org/10.34314/jalca.v118i10
The Journal of the American Leather Chemists Association, 2023, vol. 118, núm. 10, p. 439-449.
dc.rights.none.fl_str_mv (c) The American Leather Chemists Association, 2023
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) The American Leather Chemists Association, 2023
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv The American Leather Chemists Association
publisher.none.fl_str_mv The American Leather Chemists Association
dc.source.none.fl_str_mv reponame:Repositori Obert UdL
instname:Universitat de Lleida (UdL)
instname_str Universitat de Lleida (UdL)
reponame_str Repositori Obert UdL
collection Repositori Obert UdL
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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