{"id":13692,"date":"2026-01-26T18:41:38","date_gmt":"2026-01-26T23:41:38","guid":{"rendered":"https:\/\/ciraig.org\/?p=13692"},"modified":"2026-03-30T09:40:22","modified_gmt":"2026-03-30T13:40:22","slug":"cuire-veritable-ou-synthetique-quelle-matiere-est-la-plus-ecologique","status":"publish","type":"post","link":"https:\/\/ciraig.org\/index.php\/fr\/blogue\/cuire-veritable-ou-synthetique-quelle-matiere-est-la-plus-ecologique\/","title":{"rendered":"Cuir v\u00e9ritable ou synth\u00e9tique, quelle mati\u00e8re est la plus \u00e9cologique ?"},"content":{"rendered":"\n<p>Symbole de luxe et de durabilit\u00e9, le cuir occupe encore une place importante dans notre quotidien : chaussures, vestes, sacs, gants ou encore si\u00e8ges de voiture. M\u00eame si sa part dans le march\u00e9 textile a diminu\u00e9, il repr\u00e9sente encore pr\u00e8s d\u2019un quart du march\u00e9 mondial de la chaussure. La production est mod\u00e9lis\u00e9e avec la Chine qui domine les exportations, suivie du Br\u00e9sil, de l\u2019Inde, de la Russie ou encore de l\u2019Italie. Certains pays, comme le Pakistan ou l\u2019Argentine sont des grands producteurs de peau et d\u2019autres, comme la France, transforment surtout le cuir sans produire eux-m\u00eames la mati\u00e8re premi\u00e8re.<\/p>\n\n<p>Mais au-del\u00e0 de cette image et de sa long\u00e9vit\u00e9 suppos\u00e9e, quel est l\u2019impact environnemental d\u2019un produit en cuir quand on tient compte de l\u2019ensemble de son cycle de vie, de la production de mati\u00e8res premi\u00e8res jusqu\u2019\u00e0 la fin de vie du produit ?<\/p>\n\n<p>Autre question : le cuir synth\u00e9tique, aussi appel\u00e9 \u201ccuir v\u00e9gane\u201d, est-il une alternative plus \u00e9cologique ?<\/p>\n\n<h2 class=\"wp-block-heading\"><strong>Qu\u2019appelle-t-on exactement le cuir synth\u00e9tique ?<\/strong><\/h2>\n\n<p>Le cuir synth\u00e9tique regroupe tous les mat\u00e9riaux qui imitent l\u2019apparence et la texture du cuir animal sans provenir de la peau d\u2019un animal. Les plus r\u00e9pandus aujourd\u2019hui sont fabriqu\u00e9s <strong>\u00e0 partir de plastique<\/strong>, principalement du PVC ou du polyur\u00e9thane (PU). Des versions <strong>\u00e0 base de plantes<\/strong>, ma\u00efs, cactus, raisin, pomme, ananas, ou m\u00eame de <strong>champignons<\/strong>, apparaissent \u00e9galement, parfois m\u00e9lang\u00e9es \u00e0 des composants plastiques pour assurer r\u00e9sistance et durabilit\u00e9. Il existe m\u00eame des mat\u00e9riaux innovants produits \u00e0 partir de<strong> bact\u00e9ries<\/strong>.<\/p>\n\n<h2 class=\"wp-block-heading\"><strong>Lequel de ces mat\u00e9riaux a le plus d\u2019impact, cuir animal ou synth\u00e9tique ?<\/strong><\/h2>\n\n<p>D\u2019apr\u00e8s une analyse pr\u00e9sent\u00e9e par Laure Patouillard dans une <a href=\"https:\/\/ici.radio-canada.ca\/ohdio\/premiere\/emissions\/moteur-de-recherche\/segments\/chronique\/400319\/empreinte-ecologique-consommation\">chronique de Moteur de Recherche en 2022<\/a>, <strong>le cuir synth\u00e9tique \u00e0 base de plantes affiche une empreinte carbone dix fois plus faible que le cuir animal<\/strong>, pour une surface de mati\u00e8re \u00e9quivalente.<\/p>\n\n<p>Dans le cas d\u2019une paire de chaussures par exemple, la production des mat\u00e9riaux repr\u00e9sente environ la moiti\u00e9 de l\u2019impact total, l\u2019autre moiti\u00e9 provenant surtout de l\u2019assemblage. R\u00e9sultat :<\/p>\n\n<ul class=\"wp-block-list\">\n<li>une chaussure en cuir v\u00e9g\u00e9tal a environ deux fois moins d\u2019impact global qu\u2019une chaussure en cuir animal ;<\/li>\n\n<li>pour les \u00e9cosyst\u00e8mes, l\u2019impact peut \u00eatre jusqu\u2019\u00e0 quinze fois moindre, notamment gr\u00e2ce \u00e0 l\u2019absence de tannage, une \u00e9tape tr\u00e8s polluante ;<\/li>\n\n<li>les cuirs synth\u00e9tiques plastiques (PU ou PVC) affichent quant \u00e0 eux 30 \u00e0 50 % d\u2019impact en moins que le cuir animal.<\/li>\n<\/ul>\n\n<p>Ces chiffres restent toutefois tr\u00e8s variables, selon l\u2019origine des mat\u00e9riaux (plastique vierge ou recycl\u00e9), la part de fibres v\u00e9g\u00e9tales, ou encore la dur\u00e9e de vie du produit.<\/p>\n\n<h2 class=\"wp-block-heading\"><strong>Pourquoi le cuir animal est-il plus impactant ?<\/strong><\/h2>\n\n<p>Deux \u00e9tapes expliquent l\u2019essentiel de ses impacts environnementaux :<\/p>\n\n<ol class=\"wp-block-list\" start=\"1\">\n<li><strong>L\u2019\u00e9levage<\/strong> : La production de cuir d\u00e9pend presque toujours de l\u2019\u00e9levage bovin (hors cuirs exotiques). L\u2019\u00e9levage est une source majeure d\u2019\u00e9missions de gaz \u00e0 effet de serre et de pollution de l\u2019eau. On entend parfois que la peau serait un simple \u201cd\u00e9chet\u201d de la production de viande. Mais en analyse du cycle de vie (ACV), <strong>d\u00e8s lors que la peau a une valeur \u00e9conomique, elle se voit attribuer une part des impacts de l\u2019\u00e9levage<\/strong>. Il s\u2019agit toutefois d\u2019une <strong>convention m\u00e9thodologique<\/strong>, et non d\u2019une v\u00e9rit\u00e9 absolue et diff\u00e9rentes hypoth\u00e8ses peuvent conduire \u00e0 des r\u00e9sultats sensiblement diff\u00e9rents.<\/li>\n\n<li><strong>Le tannage<\/strong> :\u00a0 Le tannage est un proc\u00e9d\u00e9 chimique indispensable pour rendre la peau durable et imputrescible. Il est <strong>\u00e9nergivore et g\u00e9n\u00e8re des rejets toxiques.<\/strong> Des proc\u00e9d\u00e9s alternatifs existent, mais ils restent plus co\u00fbteux et donc encore peu r\u00e9pandus.<\/li>\n<\/ol>\n\n<h2 class=\"wp-block-heading\"><strong>Comment r\u00e9partit-on les impacts de l\u2019\u00e9levage ?<\/strong><\/h2>\n\n<p>L\u2019\u00e9levage est un exemple typique de <strong>processus multi-fonctionnel<\/strong>, c\u2019est-\u00e0-dire, qu\u2019il fournit plusieurs produits : de la viande, parfois du lait, et de la peau. En ACV, on doit donc r\u00e9partir les impacts entre ces diff\u00e9rents produits, c\u2019est ce qu\u2019on appelle une <strong>allocation des impacts<\/strong>.<\/p>\n\n<p>Il n\u2019existe pas de m\u00e9thode unique ni consensuelle. Les impacts peuvent \u00eatre r\u00e9partis de plusieurs fa\u00e7on :<\/p>\n\n<ul class=\"wp-block-list\">\n<li>selon la <strong>masse produite<\/strong> (plus un produit est produit en grande quantit\u00e9, plus il porte d\u2019impacts) ;<\/li>\n\n<li>selon le <strong>volume<\/strong> (m\u00eame principe qu\u2019avec la masse) ;<\/li>\n\n<li>selon la <strong>valeur \u00e9conomique<\/strong> (un produit plus rentable re\u00e7oit une plus grande part des impacts) ;<\/li>\n\n<li>ou selon des approches plus complexes bas\u00e9es sur les <strong>flux biologiques<\/strong>, comme c\u2019est le cas en Europe pour r\u00e9partir les impacts entre lait, viande et peau.<\/li>\n<\/ul>\n\n<p>En suivant ces r\u00e8gles, on estime qu\u2019<strong>un kilo de peau porte environ autant d\u2019impact que trois kilos de lait ou 300 g de viande<\/strong>. Cette logique ne s\u2019applique cependant pas aux cuirs exotiques ou de tr\u00e8s haute qualit\u00e9 (crocodile, autruche, chameau\u2026), o\u00f9 l\u2019animal est \u00e9lev\u00e9 sp\u00e9cifiquement pour sa peau : dans ce cas, <strong>la quasi-totalit\u00e9 de l\u2019impact lui est attribu\u00e9e<\/strong>.<\/p>\n\n<h2 class=\"wp-block-heading\"><strong>La dur\u00e9e de vie des produits, un facteur d\u00e9cisif<\/strong><\/h2>\n\n<p>Comparer les mat\u00e9riaux ne suffit pas. Ce qui compte vraiment, c\u2019est <strong>le temps d\u2019usage r\u00e9el<\/strong>.<br \/>Si une chaussure en cuir synth\u00e9tique a deux fois moins d\u2019impact \u00e0 la fabrication mais s\u2019use trois fois plus vite, son empreinte totale devient plus \u00e9lev\u00e9e.<\/p>\n\n<p>Aujourd\u2019hui, les v\u00eatements sont souvent remplac\u00e9s non parce qu\u2019ils sont us\u00e9s, mais parce qu\u2019on s\u2019en lasse. Au Royaume-Uni, un v\u00eatement est port\u00e9 en moyenne <strong>trois ans seulement<\/strong>, une dur\u00e9e encore r\u00e9duite par la fast fashion. Chaque ann\u00e9e d\u2019utilisation suppl\u00e9mentaire permet pourtant de <strong>r\u00e9duire significativement l\u2019impact environnemental<\/strong>.<\/p>\n\n<p>C\u2019est pourquoi l\u2019achat de <strong>seconde main<\/strong>, l\u2019entretien et la r\u00e9paration sont souvent plus efficaces qu\u2019un simple changement de mati\u00e8re.<\/p>\n\n<h2 class=\"wp-block-heading\"><strong>Quelles recommandations ?<\/strong><\/h2>\n\n<ul class=\"wp-block-list\">\n<li>Privil\u00e9gierdes<strong> articles durables, intemporels et r\u00e9parables<\/strong>.<\/li>\n\n<li>Favoriser le<strong> cuir de seconde main<\/strong>, qui prolonge la dur\u00e9e de vie des produits existants.<\/li>\n\n<li>Si vous optez pour du synth\u00e9tique, pr\u00e9f\u00e9rez les<strong> versions recycl\u00e9es ou biosourc\u00e9es<\/strong>.<\/li>\n\n<li>Si vous achetez du cuir animal, <strong>\u00e9vitez les cuirs exotiques<\/strong> ou issus d\u2019\u00e9levages d\u00e9di\u00e9s uniquement \u00e0 cette production.<\/li>\n\n<li>Entretenir, r\u00e9parer, faire ressemeler\u2026 plut\u00f4t que remplacer.<\/li>\n\n<li>Donner ou revendre plut\u00f4t que\u00a0jeter.<\/li>\n<\/ul>\n\n<p>En r\u00e9sum\u00e9, le cuir v\u00e9g\u00e9tal ou recycl\u00e9 est souvent plus \u00e9cologique \u00e0 la production, mais la vraie diff\u00e9rence se joue sur la <strong>dur\u00e9e d\u2019usage<\/strong>. Le mat\u00e9riau compte, mais c\u2019est souvent le <strong>nombre d\u2019ann\u00e9es d\u2019utilisation<\/strong> qui d\u00e9termine vraiment l\u2019empreinte environnementale de nos objets.<\/p>\n<hr \/>\n\u00a0\n\n<p>Ce billet de blog est tir\u00e9 de la chronique <a href=\"https:\/\/ici.radio-canada.ca\/ohdio\/premiere\/emissions\/moteur-de-recherche\/segments\/rattrapage\/1802942\/quel-cuir-est-plus-ecologique-entre-veritable-et-cuir-synthetique?intcmp=liste-weekend_index\"><strong>Moteur de recherche de Radio Canada du 10 juillet 2024<\/strong><\/a> et d\u2019un\u00a0<a href=\"https:\/\/www.lapresse.ca\/actualites\/environnement\/2024-07-05\/le-facteur-humain\/a-la-recherche-du-cuir-ideal.php\"><strong>article publi\u00e9 le 5 juillet 2024<\/strong><\/a>\u00a0dans le journal La Presse avec l\u2019intervention d\u2019<strong>Elliot Muller, analyste au CIRAIG<\/strong>.<\/p>\n<hr \/>\n\u00a0\n\n<h3 class=\"wp-block-heading\">Bibliographie<\/h3>\n\n<p>Conde, M., Combalia, F., Baquero, G., Oll\u00e9, L., &amp; Bacardit, A. (2022). Exploring the feasibility of substituting mimosa tannin for pine bark powder: A LCA perspective. <em>Cleaner Engineering and Technology, 7<\/em>, 100425. <a href=\"https:\/\/doi.org\/10.1016\/j.clet.2022.100425\"><strong>https:\/\/doi.org\/10.1016\/j.clet.2022.100425<\/strong><\/a><\/p>\n\n<p>Ellen MacArthur Foundation. (2017). <em>A new textiles economy: Redesigning fashion\u2019s future<\/em>.<br \/><a href=\"https:\/\/www.ellenmacarthurfoundation.org\/a-new-textiles-economy\"><strong>https:\/\/www.ellenmacarthurfoundation.org\/a-new-textiles-economy<\/strong><\/a><\/p>\n\n<p>European Commission, Joint Research Centre. (2018). <em>PEFCR guidance document (Version 6.3)<\/em>.<br \/><a href=\"https:\/\/eplca.jrc.ec.europa.eu\/permalink\/PEFCR_guidance_v6.3-2.pdf\"><strong>https:\/\/eplca.jrc.ec.europa.eu\/permalink\/PEFCR_guidance_v6.3-2.pdf<\/strong><\/a><\/p>\n\n<p>Farfetch. (2020). <em>Understanding the environmental savings of pre-owned fashion<\/em>.<br \/><a href=\"https:\/\/cdn-static.farfetch-contents.com\/content\/UP\/PRODUCTION\/LANDING-PAGES\/SUSTAINABILITY-CALC\/Understanding%20the%20Environmental%20Savings%20of%20Pre-owned_Farfetch%20Report%202020.pdf\"><strong>https:\/\/cdn-static.farfetch-contents.com\/content\/UP\/PRODUCTION\/LANDING-PAGES\/SUSTAINABILITY-CALC\/Understanding%20the%20Environmental%20Savings%20of%20Pre-owned_Farfetch%20Report%202020.pdf<\/strong><\/a><\/p>\n\n<p>Ferreira de Silva, P. P. (2023). <em>Environmental performance of leather and leather-like materials applied to footwear<\/em> (Master\u2019s thesis). Norwegian University of Science and Technology, Faculty of Engineering, Department of Energy and Process Engineering. <a href=\"https:\/\/hdl.handle.net\/11250\/3087821\"><strong>https:\/\/hdl.handle.net\/11250\/3087821<\/strong><\/a><\/p>\n\n<p>Grand View Research. (2024). <em>Leather goods market (2025-2033)<\/em>.<br \/><a href=\"https:\/\/www.grandviewresearch.com\/industry-analysis\/leather-goods-market\"><strong>https:\/\/www.grandviewresearch.com\/industry-analysis\/leather-goods-market<\/strong><\/a><\/p>\n\n<p>Groupe HCP. (2020). <em>Le tannage du cuir<\/em>.<br \/><a href=\"https:\/\/www.groupehcp.com\/tannage\/\"><strong>https:\/\/www.groupehcp.com\/tannage\/<\/strong><\/a><\/p>\n\n<p>MoEa. (n.d.). <em>Analyse du cycle de vie des MoEo.<\/em><br \/><a href=\"https:\/\/moea.io\/fr\/pages\/lca-carbon-footprint\"><strong>https:\/\/moea.io\/fr\/pages\/lca-carbon-footprint<\/strong><\/a><\/p>\n\n<p>Nordic Council of Ministers. (2018). <em>Product Environmental Footprint Category Rules (PEFCR): Leather<\/em>.<br \/><a href=\"http:\/\/nordic-peforg2.serv14.powerhosting.dk\/wp-content\/uploads\/2021\/08\/pefcr_leather.pdf\"><strong>http:\/\/nordic-peforg2.serv14.powerhosting.dk\/wp-content\/uploads\/2021\/08\/pefcr_leather.pdf<\/strong><\/a><\/p>\n\n<p>Quantis. (2018). <em>Measuring fashion: Environmental impact of the global apparel and footwear industries study<\/em>.<br \/><a href=\"https:\/\/media-pro.refashion.fr\/2025\/10\/measuring-fashion-environmental-impact-of-the-global-apparel-and-footwear-industries-study.pdf\"><strong>https:\/\/media-pro.refashion.fr\/2025\/10\/measuring-fashion-environmental-impact-of-the-global-apparel-and-footwear-industries-study.pdf<\/strong><\/a><\/p>\n\n<p>Shou, M. Domenech, T. (2022). Integrating LCA and blockchain technology to promote circular fashion \u2013 A case study of leather handbags. <em>Journal of Cleaner Production, 373,<\/em> 133557. <a href=\"https:\/\/doi.org\/10.1016\/j.jclepro.2022.133557\"><strong>https:\/\/doi.org\/10.1016\/j.jclepro.2022.133557<\/strong><\/a><\/p>\n\n<p>Statista. (2022). <em>Distribution of leather goods exports in value worldwide in 20221, by country<\/em>.<br \/><a href=\"https:\/\/www.statista.com\/statistics\/768345\/leather-goods-distribution-exports-value-by-country-world\/\"><strong>https:\/\/www.statista.com\/statistics\/768345\/leather-goods-distribution-exports-value-by-country-world\/<\/strong><\/a><\/p>\n\n<p>Tewari, S., Reshamwala, S.M.S., Bhatt, L.\u00a0<em>et al.<\/em>\u00a0Vegan leather: a sustainable reality or a marketing gimmick?.\u00a0<em>Environ Sci Pollut Res<\/em>\u00a0<strong>31<\/strong>, 3361\u20133375 (2024). <a href=\"https:\/\/doi.org\/10.1007\/s11356-023-31491-8\"><strong>https:\/\/doi.org\/10.1007\/s11356-023-31491-8<\/strong><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Symbole de luxe et de durabilit\u00e9, le cuir occupe encore une place importante dans notre quotidien : chaussures, vestes, sacs, gants ou encore si\u00e8ges de voiture. M\u00eame si sa part dans le march\u00e9 textile a diminu\u00e9, il repr\u00e9sente encore pr\u00e8s d\u2019un quart du march\u00e9 mondial de la chaussure. La production est mod\u00e9lis\u00e9e avec la Chine [&hellip;]<\/p>\n","protected":false},"author":16,"featured_media":13695,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[850],"tags":[],"class_list":["post-13692","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogue"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cuir v\u00e9ritable ou synth\u00e9tique, quelle mati\u00e8re est la plus \u00e9cologique ? - CIRAIG<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ciraig.org\/index.php\/fr\/blogue\/cuire-veritable-ou-synthetique-quelle-matiere-est-la-plus-ecologique\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cuir v\u00e9ritable ou synth\u00e9tique, quelle mati\u00e8re est la plus \u00e9cologique ? - CIRAIG\" \/>\n<meta property=\"og:description\" content=\"Symbole de luxe et de durabilit\u00e9, le cuir occupe encore une place importante dans notre quotidien : chaussures, vestes, sacs, gants ou encore si\u00e8ges de voiture. 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