{"id":9088,"date":"2025-10-28T08:52:15","date_gmt":"2025-10-28T08:52:15","guid":{"rendered":"https:\/\/changhongchemical.com\/?p=9088"},"modified":"2026-04-27T11:16:05","modified_gmt":"2026-04-27T11:16:05","slug":"9088-2","status":"publish","type":"post","link":"https:\/\/changhongchemical.com\/fr\/9088-2\/","title":{"rendered":"Photo-initiateurs - Migration et toxicit\u00e9"},"content":{"rendered":"

Photo-initiateurs - Migration et toxicit\u00e9<\/strong><\/h1>\n

Bonjour \u00e0 tous ! Je suis une employ\u00e9e vedette \u00e0 CHROM\u00c9CLAIR<\/a>, une marque de gel polish sans h\u00e9moglobine<\/u><\/a>Aujourd'hui, je vais rassembler quelques informations sur la migration et la toxicit\u00e9 des photo-initiateurs, en esp\u00e9rant qu'elles vous seront utiles.<\/p>\n

Le poids mol\u00e9culaire des photo-initiateurs est g\u00e9n\u00e9ralement compris entre 100 et 300. Par exemple, le poids mol\u00e9culaire du 1173 est de 164,2, celui du TPO de 348,4 et celui du 819 de 418,5, tous class\u00e9s parmi les compos\u00e9s organiques de faible poids mol\u00e9culaire.<\/p>\n

En cas d'exposition incompl\u00e8te \u00e0 la lumi\u00e8re, ces mol\u00e9cules de photo-initiateurs peuvent rester dans le mat\u00e9riau durci et former des substances migratoires potentielles. En outre, la g\u00e9n\u00e9ration de radicaux libres par les photo-initiateurs se fait principalement par des r\u00e9actions de clivage. Ces radicaux libres peuvent former des compos\u00e9s de poids mol\u00e9culaire inf\u00e9rieur lors de l'extinction finale.<\/p>\n

Ces produits \u00e0 petites mol\u00e9cules ne contribuent pas seulement aux probl\u00e8mes de migration, mais peuvent \u00e9galement g\u00e9n\u00e9rer des substances toxiques. Les photo-initiateurs r\u00e9siduels et les petites mol\u00e9cules produites au cours des r\u00e9actions pr\u00e9sentent des risques potentiels de migration dans les produits photopolym\u00e9ris\u00e9s, ce qui peut avoir des cons\u00e9quences n\u00e9gatives pour les utilisateurs.<\/p>\n

The most significant incident occurred in 2005 when the photoinitiator ITX<\/a> was detected in Nestl\u00e9 infant formula in Italy. Globally, the European Union maintains the strongest focus on the health impacts of chemicals and enforces the most stringent regulations.<\/p>\n

Classification toxicologique et restrictions d'utilisation des OPT<\/strong><\/h3>\n

With the widespread use of the photo-initiateur TPO<\/a>, regulatory oversight has intensified. Under the EU’s CLP (Classification, Labelling, and Packaging) Regulation, TPO was initially classified as a Category 2 (H361) reproductive toxicant, meaning \u201csuspected human reproductive toxicant, but the available evidence is not sufficient to conclusively classify it as Category 1.\u201d<\/p>\n

TPO (MAPO)<\/strong><\/h3>\n

En juin 2020, la Su\u00e8de, un pays nordique, a propos\u00e9 de r\u00e9viser la classification \u00e0 la cat\u00e9gorie 1B (H360DF) et de l'ajouter en tant qu'irritant cutan\u00e9 (H317). La cat\u00e9gorie 1B indique que le produit est \"pr\u00e9sum\u00e9 toxique pour la reproduction humaine\", une conclusion fond\u00e9e sur des preuves substantielles tir\u00e9es d'\u00e9tudes animales.<\/p>\n

\"\"Le processus d'harmonisation de la classification et de l'\u00e9tiquetage (CLH) de l'UE<\/strong><\/h3>\n

Les r\u00e8glements classent \u00e9galement les substances toxiques pour la reproduction dans la classe 1, qui est elle-m\u00eame subdivis\u00e9e en 1A et 1B. La cat\u00e9gorie 1A correspond aux substances \"connues pour \u00eatre toxiques pour la reproduction chez l'homme\", sur la base de preuves substantielles chez l'homme, tandis que la cat\u00e9gorie 1B correspond aux substances \"pr\u00e9sum\u00e9es toxiques pour la reproduction chez l'homme\", sur la base de preuves substantielles lors d'essais sur les animaux. Les substances de la cat\u00e9gorie 1A sont interdites, tandis que les substances de la cat\u00e9gorie 1B sont susceptibles d'\u00eatre interdites ou limit\u00e9es. Pr\u00e9c\u00e9demment, la Su\u00e8de, un pays nordique, a \u00e9galement propos\u00e9 de modifier la classification en 1B (H360DF) et de l'ajouter en tant qu'irritant cutan\u00e9 (H317).<\/p>\n

\u00c0 l'automne 2021, le Comit\u00e9 d'\u00e9valuation des risques (CER) de l'UE a accept\u00e9 de mettre \u00e0 jour la classification du TPO. La Commission europ\u00e9enne (CE) examine actuellement cette classification, un processus qui devrait prendre de 0,5 \u00e0 1,5 an selon les r\u00e9glementations. Si elle est approuv\u00e9e par la CE, cette classification sera ajout\u00e9e \u00e0 l'annexe VI du r\u00e8glement CLP de l'UE par le biais d'un ATP et deviendra juridiquement contraignante. En janvier 2023, la Su\u00e8de a annonc\u00e9 son intention de proposer l'inclusion du TPO dans la liste des substances SVHC (Substances of Very High Concern) candidates.<\/p>\n

Selon le site web de l'ECHA, le TPO a \u00e9t\u00e9 ajout\u00e9 \u00e0 la liste candidate des substances extr\u00eamement pr\u00e9occupantes pour autorisation le 14 juin 2023. Cela signifie que le TPO est d\u00e9sormais interdit ou limit\u00e9 dans de nombreuses applications, telles que les mat\u00e9riaux en contact avec les aliments.<\/p>\n

Options alternatives de l'OPC<\/strong><\/h3>\n

Parmi les photo-initiateurs \u00e0 base d'oxyde de phosphine ayant une bonne absorption dans la bande UVA, deux autres alternatives couramment utilis\u00e9es en plus du TPO sont le TPO-L et le 819 (BAPO). Cependant, le TPO-L et le 819 ne peuvent que partiellement remplacer le TPO dans certaines applications et ne peuvent pas le remplacer totalement.<\/p>\n

\"\"La TPO-L poss\u00e8de une structure similaire \u00e0 celle de la TPO, mais l'un des anneaux benz\u00e9niques de sa mol\u00e9cule est remplac\u00e9 par un groupe \u00e9thoxy, ce qui lui conf\u00e8re une plus faible toxicit\u00e9. Cependant, TPO-L pr\u00e9sente une efficacit\u00e9 d'initiation significativement plus faible que TPO.<\/p>\n

Un autre photo-initiateur \u00e0 base d'oxyde de phosphine est le 819 (BABO), qui peut \u00eatre consid\u00e9r\u00e9 comme un TPO avec un anneau benz\u00e9nique substitu\u00e9 par un groupe 2,4,6-trim\u00e9thylbenzoyle, poss\u00e9dant effectivement deux groupes 2,4,6-trim\u00e9thylbenzoyle. Si le 819 pr\u00e9sente une efficacit\u00e9 d'amor\u00e7age sup\u00e9rieure \u00e0 celle du TPO, il souffre de graves probl\u00e8mes de jaunissement, ce qui le rend inadapt\u00e9 aux applications exigeant de la couleur.<\/p>\n

L'\u00e9mergence de TMO : le remplacement ultime des OPC<\/strong><\/h3>\n

Dans ce contexte, l'av\u00e8nement du nouveau photo-initiateur TMO r\u00e9sout fondamentalement tous les d\u00e9fis pr\u00e9c\u00e9demment associ\u00e9s \u00e0 la TPO.<\/p>\n

TMO<\/strong><\/h3>\n

Le TMO, connu sous le nom de (2,4,6-trim\u00e9thylbenzoyl)bis(p-tolyl)phosphine oxide, CAS 270586-78-2. D'un point de vue structurel, le TMO introduit un groupe m\u00e9thyle dans chacun des deux anneaux benz\u00e9niques du TPO, ce qui r\u00e9duit consid\u00e9rablement la biotoxicit\u00e9 du TPO. Les r\u00e9sultats exp\u00e9rimentaux indiquent que le TMO pr\u00e9sente une efficacit\u00e9 d'initiation l\u00e9g\u00e8rement sup\u00e9rieure \u00e0 celle du TPO, tout en ne pr\u00e9sentant pas de jaunissement et une migration plus faible.<\/p>\n

Ce photo-initiateur est utilis\u00e9 dans les formulations de rev\u00eatements, offrant une excellente solubilit\u00e9 avec les oligom\u00e8res et les diluants r\u00e9actifs, et est exempt de benz\u00e8ne. Le TMO convient au durcissement rapide aux UV de rev\u00eatements, d'encres et d'adh\u00e9sifs de haute qualit\u00e9 sur divers substrats. Il se pr\u00e9sente sous la forme d'une poudre cristalline jaune p\u00e2le \u00e0 l'odeur aromatique caract\u00e9ristique. Il est stable, ne se d\u00e9compose pas facilement \u00e0 temp\u00e9rature ambiante et est soluble dans divers solvants organiques.<\/p>\n

La voie de synth\u00e8se du TMO est consid\u00e9r\u00e9e comme respectueuse de l'environnement et permet d'obtenir des produits d'une grande puret\u00e9 avec des rendements \u00e9lev\u00e9s. En termes de cin\u00e9tique de photopolym\u00e9risation, le TMO pr\u00e9sente des performances exceptionnelles, avec des propri\u00e9t\u00e9s d'absorption de la lumi\u00e8re, une activit\u00e9 de photopolym\u00e9risation et une p\u00e9n\u00e9tration profonde sup\u00e9rieures \u00e0 celles des photo-initiateurs TPO traditionnels. M\u00e9lang\u00e9 \u00e0 la 1-hydroxycyclohexylbenzoph\u00e9none (184), le TMO am\u00e9liore la photosensibilit\u00e9 et les caract\u00e9ristiques de durcissement en profondeur.<\/p>\n

\"\"Courbe du taux de conversion de la double liaison de la TMO et de la TPO initiant la TMPTA<\/strong><\/h3>\n

Le TMO constituera un substitut id\u00e9al au TPO et a d\u00e9j\u00e0 atteint le stade de la production de masse. En outre, le TMO a obtenu le certificat d'enregistrement REACH de l'UE, ce qui permet sa vente en Europe, la r\u00e9gion o\u00f9 les r\u00e9glementations chimiques sont les plus strictes.<\/p>\n

Le photo-initiateur TMO a \u00e9t\u00e9 test\u00e9 pour une utilisation dans les encres d'impression et les adh\u00e9sifs sur le bois, le m\u00e9tal, le plastique, le papier et les surfaces de fibres optiques. Il pr\u00e9sente une excellente solubilit\u00e9 dans les formulations UV courantes (par exemple, les syst\u00e8mes d'acrylate et de polyester insatur\u00e9). Il peut \u00eatre utilis\u00e9 seul ou m\u00e9lang\u00e9 \u00e0 d'autres photo-initiateurs.<\/p>\n

La synth\u00e8se de l'initiateur TMO est r\u00e9alis\u00e9e en utilisant l'oxyde de di(p-tolyl)phosphine et le chlorure de 2,4,6-trim\u00e9thylbenzoyle comme mati\u00e8res premi\u00e8res. Cette m\u00e9thode de synth\u00e8se est respectueuse de l'environnement, efficace et permet d'obtenir un produit d'une grande puret\u00e9 avec un excellent rendement. En testant ses propri\u00e9t\u00e9s photophysiques et chimiques, en l'appliquant \u00e0 des syst\u00e8mes d'encre, en \u00e9tudiant sa cin\u00e9tique de photopolym\u00e9risation, en \u00e9tablissant un mod\u00e8le cin\u00e9tique de durcissement et en le comparant \u00e0 l'oxyde de 2,4,6-trim\u00e9thylbenzoyl-diph\u00e9nylphosphine (TPO), les r\u00e9sultats indiquent que le TMO pr\u00e9sente des propri\u00e9t\u00e9s d'absorption de la lumi\u00e8re, une activit\u00e9 de photopolym\u00e9risation et des performances de durcissement en profondeur sup\u00e9rieures \u00e0 celles du TPO. En outre, la coformulation du TMO avec le 1-hydroxycyclohexylbenzoph\u00e9none (184) am\u00e9liore la photosensibilit\u00e9 du TMO et ses caract\u00e9ristiques de durcissement en profondeur.<\/p>\n

 <\/p>\n

J'esp\u00e8re que cet article vous aidera \u00e0 mieux comprendre les photo-initiateurs !<\/p>\n

CHROM\u00c9CLAIR offre Base coats, Top coats, solid color gel polish sans HEMA<\/u><\/a>et Vernis gel pour les yeux de chat sans h\u00e9matome<\/u><\/a>.<\/strong><\/p>\n

\"\"Leur site web propose \u00e9galement des tutoriels de nail art, comme par exemple :<\/p>\n

Comment faire le nail art du n\u0153ud \u00e0 pois \u00e0 la maison ?<\/a><\/p>\n

Tutoriel de dessin d'ongles pour Halloween : Fant\u00f4me cybern\u00e9tique<\/a><\/p>\n

 <\/p>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

Hello everyone! I’m a star employee at CHROM\u00c9CLAIR, a brand of hema free gel polish.Today, I’ll organize some information about the migration and toxicity of photoinitiators, hoping it will be helpful to you. The…<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[198,185],"tags":[],"class_list":["post-9088","post","type-post","status-publish","format-standard","hentry","category-gel-polish","category-photoinitiator"],"yoast_head":"\nPhotoinitiators | Migration and Toxicity- Changhong Chemical<\/title>\n<meta name=\"description\" content=\"Hello everyone! I'm a star employee at CHROM\u00c9CLAIR, a brand of hema free gel polish.Today, I'll organize some information about the migration and toxicity of photoinitiators, hoping it will be helpful to you.The molecular weight of photoinitiators typically ranges between 100 and 300. For example, 1173 has a molecular weight of 164.2, TPO has 348.4, and 819 has 418.5, all classified as low-molecular-weight organic compounds.Under incomplete light exposure, these photoinitiator molecules may remain in the cured material, forming potential migration substances. Furthermore, the generation of free radicals by photoinitiators is predominantly achieved through cleavage reactions. These free radicals may form lower molecular weight compounds upon final quenching.These small-molecule products not only contribute to migration concerns but may also generate toxic substances. Both residual photoinitiators and the small molecules produced during reactions pose potential migration risks in light-cured products, potentially adversely affecting users.The most significant incident occurred in 2005 when the photoinitiator ITX was detected in Nestl\u00e9 infant formula in Italy. Globally, the European Union maintains the strongest focus on the health impacts of chemicals and enforces the most stringent regulations.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/changhongchemical.com\/fr\/9088-2\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Photoinitiators | Migration and Toxicity- Changhong Chemical\" \/>\n<meta property=\"og:description\" content=\"Hello everyone! I'm a star employee at CHROM\u00c9CLAIR, a brand of hema free gel polish.Today, I'll organize some information about the migration and toxicity of photoinitiators, hoping it will be helpful to you.The molecular weight of photoinitiators typically ranges between 100 and 300. For example, 1173 has a molecular weight of 164.2, TPO has 348.4, and 819 has 418.5, all classified as low-molecular-weight organic compounds.Under incomplete light exposure, these photoinitiator molecules may remain in the cured material, forming potential migration substances. Furthermore, the generation of free radicals by photoinitiators is predominantly achieved through cleavage reactions. These free radicals may form lower molecular weight compounds upon final quenching.These small-molecule products not only contribute to migration concerns but may also generate toxic substances. Both residual photoinitiators and the small molecules produced during reactions pose potential migration risks in light-cured products, potentially adversely affecting users.The most significant incident occurred in 2005 when the photoinitiator ITX was detected in Nestl\u00e9 infant formula in Italy. Globally, the European Union maintains the strongest focus on the health impacts of chemicals and enforces the most stringent regulations.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/changhongchemical.com\/fr\/9088-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Changhong Chemical\" \/>\n<meta property=\"article:published_time\" content=\"2025-10-28T08:52:15+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-27T11:16:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-8.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"3462\" \/>\n\t<meta property=\"og:image:height\" content=\"2084\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Changhong Chemical\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Changhong Chemical\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/9088-2\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/9088-2\\\/\"},\"author\":{\"name\":\"Changhong Chemical\",\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/#\\\/schema\\\/person\\\/2a9593ff69d6db8f8ca0567ca3ed6b5d\"},\"headline\":\"Photoinitiators | Migration and Toxicity\",\"datePublished\":\"2025-10-28T08:52:15+00:00\",\"dateModified\":\"2026-04-27T11:16:05+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/9088-2\\\/\"},\"wordCount\":1055,\"publisher\":{\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/9088-2\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/changhongchemical.com\\\/wp-content\\\/uploads\\\/2025\\\/10\\\/1-8.webp\",\"articleSection\":[\"Gel Polish\",\"Photoinitiator\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/9088-2\\\/\",\"url\":\"https:\\\/\\\/changhongchemical.com\\\/9088-2\\\/\",\"name\":\"Photoinitiators | Migration and Toxicity- Changhong Chemical\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/9088-2\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/9088-2\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/changhongchemical.com\\\/wp-content\\\/uploads\\\/2025\\\/10\\\/1-8.webp\",\"datePublished\":\"2025-10-28T08:52:15+00:00\",\"dateModified\":\"2026-04-27T11:16:05+00:00\",\"description\":\"Hello everyone! 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Both residual photoinitiators and the small molecules produced during reactions pose potential migration risks in light-cured products, potentially adversely affecting users.The most significant incident occurred in 2005 when the photoinitiator ITX was detected in Nestl\u00e9 infant formula in Italy. 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Je suis une employ\u00e9e vedette de CHROM\u00c9CLAIR, une marque de gel polish sans h\u00e9matome.Aujourd'hui, je vais organiser quelques informations sur la migration et la toxicit\u00e9 des photo-initiateurs, en esp\u00e9rant que cela vous sera utile.Le poids mol\u00e9culaire des photo-initiateurs se situe g\u00e9n\u00e9ralement entre 100 et 300. Par exemple, le 1173 a un poids mol\u00e9culaire de 164,2, le TPO de 348,4 et le 819 de 418,5, tous class\u00e9s parmi les compos\u00e9s organiques de faible poids mol\u00e9culaire.En cas d'exposition incompl\u00e8te \u00e0 la lumi\u00e8re, ces mol\u00e9cules de photo-initiateur peuvent rester dans le mat\u00e9riau polym\u00e9ris\u00e9, formant des substances de migration potentielle. En outre, la g\u00e9n\u00e9ration de radicaux libres par les photo-initiateurs se fait principalement par des r\u00e9actions de clivage. Ces radicaux libres peuvent former des compos\u00e9s de poids mol\u00e9culaire inf\u00e9rieur lors de l'extinction finale. Ces produits \u00e0 petites mol\u00e9cules ne contribuent pas seulement aux probl\u00e8mes de migration, mais peuvent \u00e9galement g\u00e9n\u00e9rer des substances toxiques. Les photo-initiateurs r\u00e9siduels et les petites mol\u00e9cules produites au cours des r\u00e9actions pr\u00e9sentent des risques potentiels de migration dans les produits photopolym\u00e9ris\u00e9s, ce qui peut avoir des cons\u00e9quences n\u00e9gatives pour les utilisateurs. L'incident le plus important s'est produit en 2005 lorsque le photo-initiateur ITX a \u00e9t\u00e9 d\u00e9tect\u00e9 dans les pr\u00e9parations pour nourrissons de Nestl\u00e9 en Italie. Au niveau mondial, c'est l'Union europ\u00e9enne qui met le plus l'accent sur les effets des produits chimiques sur la sant\u00e9 et qui applique les r\u00e9glementations les plus strictes.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/changhongchemical.com\/fr\/9088-2\/","og_locale":"fr_FR","og_type":"article","og_title":"Photoinitiators | Migration and Toxicity- Changhong Chemical","og_description":"Hello everyone! I'm a star employee at CHROM\u00c9CLAIR, a brand of hema free gel polish.Today, I'll organize some information about the migration and toxicity of photoinitiators, hoping it will be helpful to you.The molecular weight of photoinitiators typically ranges between 100 and 300. For example, 1173 has a molecular weight of 164.2, TPO has 348.4, and 819 has 418.5, all classified as low-molecular-weight organic compounds.Under incomplete light exposure, these photoinitiator molecules may remain in the cured material, forming potential migration substances. Furthermore, the generation of free radicals by photoinitiators is predominantly achieved through cleavage reactions. These free radicals may form lower molecular weight compounds upon final quenching.These small-molecule products not only contribute to migration concerns but may also generate toxic substances. Both residual photoinitiators and the small molecules produced during reactions pose potential migration risks in light-cured products, potentially adversely affecting users.The most significant incident occurred in 2005 when the photoinitiator ITX was detected in Nestl\u00e9 infant formula in Italy. Globally, the European Union maintains the strongest focus on the health impacts of chemicals and enforces the most stringent regulations.","og_url":"https:\/\/changhongchemical.com\/fr\/9088-2\/","og_site_name":"Changhong Chemical","article_published_time":"2025-10-28T08:52:15+00:00","article_modified_time":"2026-04-27T11:16:05+00:00","og_image":[{"width":3462,"height":2084,"url":"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-8.webp","type":"image\/webp"}],"author":"Changhong Chemical","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Changhong Chemical","Dur\u00e9e de lecture estim\u00e9e":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/changhongchemical.com\/9088-2\/#article","isPartOf":{"@id":"https:\/\/changhongchemical.com\/9088-2\/"},"author":{"name":"Changhong Chemical","@id":"https:\/\/changhongchemical.com\/#\/schema\/person\/2a9593ff69d6db8f8ca0567ca3ed6b5d"},"headline":"Photoinitiators | Migration and Toxicity","datePublished":"2025-10-28T08:52:15+00:00","dateModified":"2026-04-27T11:16:05+00:00","mainEntityOfPage":{"@id":"https:\/\/changhongchemical.com\/9088-2\/"},"wordCount":1055,"publisher":{"@id":"https:\/\/changhongchemical.com\/#organization"},"image":{"@id":"https:\/\/changhongchemical.com\/9088-2\/#primaryimage"},"thumbnailUrl":"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-8.webp","articleSection":["Gel Polish","Photoinitiator"],"inLanguage":"fr-FR"},{"@type":"WebPage","@id":"https:\/\/changhongchemical.com\/9088-2\/","url":"https:\/\/changhongchemical.com\/9088-2\/","name":"Photoinitiateurs - Migration et toxicit\u00e9 - Changhong Chemical","isPartOf":{"@id":"https:\/\/changhongchemical.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/changhongchemical.com\/9088-2\/#primaryimage"},"image":{"@id":"https:\/\/changhongchemical.com\/9088-2\/#primaryimage"},"thumbnailUrl":"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-8.webp","datePublished":"2025-10-28T08:52:15+00:00","dateModified":"2026-04-27T11:16:05+00:00","description":"Bonjour \u00e0 toutes et \u00e0 tous ! Je suis une employ\u00e9e vedette de CHROM\u00c9CLAIR, une marque de gel polish sans h\u00e9matome.Aujourd'hui, je vais organiser quelques informations sur la migration et la toxicit\u00e9 des photo-initiateurs, en esp\u00e9rant que cela vous sera utile.Le poids mol\u00e9culaire des photo-initiateurs se situe g\u00e9n\u00e9ralement entre 100 et 300. Par exemple, le 1173 a un poids mol\u00e9culaire de 164,2, le TPO de 348,4 et le 819 de 418,5, tous class\u00e9s parmi les compos\u00e9s organiques de faible poids mol\u00e9culaire.En cas d'exposition incompl\u00e8te \u00e0 la lumi\u00e8re, ces mol\u00e9cules de photo-initiateur peuvent rester dans le mat\u00e9riau polym\u00e9ris\u00e9, formant des substances de migration potentielle. En outre, la g\u00e9n\u00e9ration de radicaux libres par les photo-initiateurs se fait principalement par des r\u00e9actions de clivage. Ces radicaux libres peuvent former des compos\u00e9s de poids mol\u00e9culaire inf\u00e9rieur lors de l'extinction finale. Ces produits \u00e0 petites mol\u00e9cules ne contribuent pas seulement aux probl\u00e8mes de migration, mais peuvent \u00e9galement g\u00e9n\u00e9rer des substances toxiques. Les photo-initiateurs r\u00e9siduels et les petites mol\u00e9cules produites au cours des r\u00e9actions pr\u00e9sentent des risques potentiels de migration dans les produits photopolym\u00e9ris\u00e9s, ce qui peut avoir des cons\u00e9quences n\u00e9gatives pour les utilisateurs. L'incident le plus important s'est produit en 2005 lorsque le photo-initiateur ITX a \u00e9t\u00e9 d\u00e9tect\u00e9 dans les pr\u00e9parations pour nourrissons de Nestl\u00e9 en Italie. Au niveau mondial, c'est l'Union europ\u00e9enne qui met le plus l'accent sur les effets des produits chimiques sur la sant\u00e9 et qui applique les r\u00e9glementations les plus strictes.","breadcrumb":{"@id":"https:\/\/changhongchemical.com\/9088-2\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/changhongchemical.com\/9088-2\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/changhongchemical.com\/9088-2\/#primaryimage","url":"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-8.webp","contentUrl":"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-8.webp"},{"@type":"BreadcrumbList","@id":"https:\/\/changhongchemical.com\/9088-2\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/changhongchemical.com\/"},{"@type":"ListItem","position":2,"name":"Photoinitiators | Migration and Toxicity"}]},{"@type":"WebSite","@id":"https:\/\/changhongchemical.com\/#website","url":"https:\/\/changhongchemical.com\/","name":"Changhong Chemical","description":"Fabricant chinois de produits chimiques \uff06 fournisseur","publisher":{"@id":"https:\/\/changhongchemical.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/changhongchemical.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/changhongchemical.com\/#organization","name":"Changhong Chemical","url":"https:\/\/changhongchemical.com\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/changhongchemical.com\/#\/schema\/logo\/image\/","url":"https:\/\/changhongchemical.com\/wp-content\/uploads\/2020\/08\/cropped-longchang-logo.png","contentUrl":"https:\/\/changhongchemical.com\/wp-content\/uploads\/2020\/08\/cropped-longchang-logo.png","width":512,"height":512,"caption":"Changhong Chemical"},"image":{"@id":"https:\/\/changhongchemical.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/changhongchemical.com\/#\/schema\/person\/2a9593ff69d6db8f8ca0567ca3ed6b5d","name":"Changhong Chemical","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/secure.gravatar.com\/avatar\/a2d60a3a1fe3f833b6f3c104e1ab60f8bd057928e36187909c92dc89c162e333?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/a2d60a3a1fe3f833b6f3c104e1ab60f8bd057928e36187909c92dc89c162e333?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/a2d60a3a1fe3f833b6f3c104e1ab60f8bd057928e36187909c92dc89c162e333?s=96&d=mm&r=g","caption":"Changhong Chemical"},"sameAs":["https:\/\/changhongchemical.com"],"url":"https:\/\/changhongchemical.com\/fr\/author\/infolongchangchemical-com\/"}]}},"_links":{"self":[{"href":"https:\/\/changhongchemical.com\/fr\/wp-json\/wp\/v2\/posts\/9088","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/changhongchemical.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/changhongchemical.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/changhongchemical.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/changhongchemical.com\/fr\/wp-json\/wp\/v2\/comments?post=9088"}],"version-history":[{"count":7,"href":"https:\/\/changhongchemical.com\/fr\/wp-json\/wp\/v2\/posts\/9088\/revisions"}],"predecessor-version":[{"id":9992,"href":"https:\/\/changhongchemical.com\/fr\/wp-json\/wp\/v2\/posts\/9088\/revisions\/9992"}],"wp:attachment":[{"href":"https:\/\/changhongchemical.com\/fr\/wp-json\/wp\/v2\/media?parent=9088"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/changhongchemical.com\/fr\/wp-json\/wp\/v2\/categories?post=9088"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/changhongchemical.com\/fr\/wp-json\/wp\/v2\/tags?post=9088"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}