{"id":9079,"date":"2025-10-24T07:32:30","date_gmt":"2025-10-24T07:32:30","guid":{"rendered":"https:\/\/changhongchemical.com\/?p=9079"},"modified":"2026-04-27T11:16:05","modified_gmt":"2026-04-27T11:16:05","slug":"what-does-a-photoinitiator-do","status":"publish","type":"post","link":"https:\/\/changhongchemical.com\/fr\/what-does-a-photoinitiator-do\/","title":{"rendered":"Que fait un photo-initiateur ?"},"content":{"rendered":"<h1><strong>Que fait un photo-initiateur ?<\/strong><\/h1>\n<p>Bonjour \u00e0 tous ! Je suis une employ\u00e9e vedette \u00e0 <a href=\"https:\/\/chromeclair.com\/\">CHROM\u00c9CLAIR<\/a>, une marque de <a href=\"https:\/\/chromeclair.com\/product-category\/cat-eye-gel-polish\/page\/2\/\"><u>gel polish sans h\u00e9moglobine<\/u><\/a>Aujourd'hui, je vais organiser et expliquer les connaissances sur les photo-initiateurs, en esp\u00e9rant que cela vous sera utile.<\/p>\n<p>Bien que la soci\u00e9t\u00e9 am\u00e9ricaine Inmot ait obtenu le premier brevet pour le s\u00e9chage \u00e0 la lumi\u00e8re ultraviolette d\u00e8s 1946,<\/p>\n<p>La soci\u00e9t\u00e9 allemande Bayer a industrialis\u00e9 la technologie de durcissement par lumi\u00e8re UV en 1967, en introduisant le concept de photo-initiateurs. Depuis lors, les photo-initiateurs n'ont cess\u00e9 d'\u00e9voluer. Aujourd'hui, le march\u00e9 offre une grande vari\u00e9t\u00e9 de photo-initiateurs. Aujourd'hui, le march\u00e9 offre une grande vari\u00e9t\u00e9 de photo-initiateurs,<\/p>\n<p>Keyou Company fournit un aper\u00e7u d\u00e9taill\u00e9 des photo-initiateurs, couvrant leurs m\u00e9canismes d'action, les exigences de performance, les types les plus courants,<\/p>\n<p>caract\u00e9ristiques et principes d'utilisation.<\/p>\n<h3><strong><b><img decoding=\"async\" class=\"alignnone size-full wp-image-9080\" src=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-7.webp\" alt=\"\" width=\"3462\" height=\"2084\" srcset=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-7.webp 3462w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-7-768x462.webp 768w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-7-1536x925.webp 1536w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-7-2048x1233.webp 2048w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-7-18x12.webp 18w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-7-1196x720.webp 1196w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-7-600x361.webp 600w\" sizes=\"(max-width: 3462px) 100vw, 3462px\" \/>Qu'est-ce qu'un photo-initiateur ?<\/b><\/strong><\/h3>\n<p>Les photo-initiateurs, \u00e9galement appel\u00e9s photosensibilisateurs ou agents de photopolym\u00e9risation, sont des compos\u00e9s qui absorbent des longueurs d'onde d'\u00e9nergie sp\u00e9cifiques dans le spectre ultraviolet (250-420 nm) ou visible (400-800 nm). Cette absorption g\u00e9n\u00e8re des radicaux libres, des cations ou d'autres esp\u00e8ces r\u00e9actives qui initient la polym\u00e9risation et la r\u00e9ticulation des monom\u00e8res.<\/p>\n<p>Dans les syst\u00e8mes de photopolym\u00e9risation - y compris les adh\u00e9sifs UV, les rev\u00eatements UV et les encres UV - ces agents subissent des modifications chimiques lorsqu'ils absorbent l'\u00e9nergie externe, se d\u00e9composant en radicaux ou en cations qui d\u00e9clenchent les r\u00e9actions de polym\u00e9risation. Toute substance capable de g\u00e9n\u00e9rer des radicaux et de d\u00e9clencher ensuite une polym\u00e9risation lors d'une exposition \u00e0 la lumi\u00e8re est class\u00e9e comme photo-initiateur. M\u00e9canisme d'action des photo-initiateurs.<\/p>\n<p>Certains monom\u00e8res, lorsqu'ils sont expos\u00e9s \u00e0 la lumi\u00e8re, absorbent les photons pour former des \u00e9tats excit\u00e9s : M* \u2192 M+ (hv - M*). Ces mol\u00e9cules actives excit\u00e9es<\/p>\n<p>subissent un clivage homolytique pour g\u00e9n\u00e9rer des radicaux : M* \u2192 R* + R'. Cela d\u00e9clenche ensuite la polym\u00e9risation des monom\u00e8res, formant ainsi des polym\u00e8res. Polym\u00e9risation par rayonnement<\/p>\n<p>repr\u00e9sente une innovation \u00e9conome en \u00e9nergie et respectueuse de l'environnement. Durcissement par rayonnement tel que la lumi\u00e8re ultraviolette, les faisceaux d'\u00e9lectrons, la lumi\u00e8re infrarouge, la lumi\u00e8re visible, les lasers ou la chimiluminescence.<\/p>\n<p>est en parfaite ad\u00e9quation avec les caract\u00e9ristiques des \"5E\" : haute efficacit\u00e9, praticit\u00e9, \u00e9conomie, conservation de l'\u00e9nergie et respect de l'environnement. C'est pourquoi elle est consid\u00e9r\u00e9e comme une \"technologie verte\".<\/p>\n<p><strong><b><img decoding=\"async\" class=\"alignnone size-full wp-image-9081\" src=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-7.webp\" alt=\"\" width=\"3462\" height=\"2084\" srcset=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-7.webp 3462w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-7-768x462.webp 768w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-7-1536x925.webp 1536w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-7-2048x1233.webp 2048w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-7-18x12.webp 18w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-7-1196x720.webp 1196w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-7-600x361.webp 600w\" sizes=\"(max-width: 3462px) 100vw, 3462px\" \/><\/b><\/strong>Les photo-initiateurs sont l'un des composants cl\u00e9s des adh\u00e9sifs photopolym\u00e9risables, car ils jouent un r\u00f4le d\u00e9cisif dans la d\u00e9termination de la vitesse de polym\u00e9risation.<\/p>\n<p>Lorsqu'ils sont expos\u00e9s \u00e0 la lumi\u00e8re ultraviolette, les photo-initiateurs absorbent l'\u00e9nergie lumineuse et se divisent en deux radicaux libres actifs, ce qui d\u00e9clenche une polym\u00e9risation en cha\u00eene entre la r\u00e9sine photopolym\u00e9risable et les diluants actifs. Ce processus r\u00e9ticule et durcit l'adh\u00e9sif, qui se caract\u00e9rise par son action rapide, son respect de l'environnement et son efficacit\u00e9 \u00e9nerg\u00e9tique.<\/p>\n<h3><strong><b>Exigences de performance pour les photo-initiateurs<\/b><\/strong><\/h3>\n<p>1) Efficacit\u00e9 d'amor\u00e7age \u00e9lev\u00e9e.<\/p>\n<p>2) Spectre d'absorption compatible avec la source lumineuse d'irradiation.<\/p>\n<p>3) Bonne stabilit\u00e9 thermique, pas de r\u00e9action \u00e0 l'obscurit\u00e9, convient au stockage \u00e0 long terme.<\/p>\n<p>4) Bonne compatibilit\u00e9 avec les monom\u00e8res et les pr\u00e9polym\u00e8res.<\/p>\n<p>5) Pas de jaunissement ni de d\u00e9coloration pendant la formation du film par photopolym\u00e9risation.<\/p>\n<p>6) S\u00fbr et \u00e9conomique.<\/p>\n<p>7) Les photo-initiateurs et leurs produits de photolyse doivent \u00eatre non toxiques et inodores.<\/p>\n<h3><strong><b>Types et caract\u00e9ristiques des photo-initiateurs courants<\/b><\/strong><\/h3>\n<p><strong><b>TP0 Photoinitiateur<\/b><\/strong><\/p>\n<p><strong><b>Nom chimique :<\/b><\/strong>\u00a0Oxyde de 2,4,6-(Trim\u00e9thylbenzoyl)diph\u00e9nylphosphine<\/p>\n<p><strong><b>Longueur d'onde d'absorption :<\/b><\/strong>\u00a0299, 366 nm<\/p>\n<p><strong><b>Application du produit :<\/b><\/strong>\u00a0TP0 est un photo-initiateur de type radical (I) tr\u00e8s efficace, particuli\u00e8rement adapt\u00e9 aux syst\u00e8mes color\u00e9s et \u00e0 l'utilisation de l'\u00e9nergie solaire.<\/p>\n<p>Le TPO peut \u00eatre utilis\u00e9 dans des applications de polym\u00e9risation de films \u00e9pais, offrant une vitesse de polym\u00e9risation extr\u00eamement rapide. Le TPO, avec sa large gamme d'absorption, est largement applicable \u00e0 divers rev\u00eatements. Ses excellentes propri\u00e9t\u00e9s d'absorption le rendent particuli\u00e8rement adapt\u00e9 aux encres de s\u00e9rigraphie, de lithographie, de flexographie, aux rev\u00eatements pour le bois et \u00e0 la production d'adh\u00e9sifs lorsqu'il est utilis\u00e9 en combinaison avec le 184. Les niveaux d'ajout recommand\u00e9s vont de 0,5 \u00e0 4% w\/w, sur la base de r\u00e9sultats exp\u00e9rimentaux r\u00e9els.<\/p>\n<p><strong><b><img decoding=\"async\" class=\"alignnone size-full wp-image-9082\" src=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-7.webp\" alt=\"\" width=\"3462\" height=\"2084\" srcset=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-7.webp 3462w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-7-768x462.webp 768w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-7-1536x925.webp 1536w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-7-2048x1233.webp 2048w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-7-18x12.webp 18w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-7-1196x720.webp 1196w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-7-600x361.webp 600w\" sizes=\"(max-width: 3462px) 100vw, 3462px\" \/><\/b><\/strong><\/p>\n<p><strong><b>TP0-L Photoinitiateur<\/b><\/strong><\/p>\n<p><strong><b>Nom chimique :<\/b><\/strong>\u00a0Acide \u00e9thyl-2,4,6-trim\u00e9thylbenzoylphosphonique<\/p>\n<p><strong><b>Longueurs d'onde d'absorption :<\/b><\/strong>\u00a0273, 370 nm<\/p>\n<p><strong><b>Application du produit :<\/b><\/strong>\u00a0<a href=\"https:\/\/changhongchemical.com\/product\/photoinitiator-tpo-l-cas-84434-11-7\/\">TPO-L<\/a> is a highly efficient radical (I)-type liquid photoinitiator primarily used for UV curing of corresponding<\/p>\n<p>comme les acrylates insatur\u00e9s. Il est particuli\u00e8rement adapt\u00e9 aux syst\u00e8mes blancs et aux couches \u00e9paisses, offrant des vitesses de durcissement exceptionnellement rapides. En outre, TPO-L est un photo-initiateur liquide qui convient aux formulations n\u00e9cessitant un faible jaunissement et une faible odeur. Gr\u00e2ce \u00e0 sa large gamme d'absorption, TPO-L peut \u00e9galement \u00eatre utilis\u00e9 pour le durcissement des syst\u00e8mes de peinture.<\/p>\n<p>contenant des rev\u00eatements blancs. Pour am\u00e9liorer l'efficacit\u00e9 du durcissement de la surface, le TPO-L est souvent utilis\u00e9 en combinaison avec d'autres photo-initiateurs tels que le 184<\/p>\n<p><a href=\"https:\/\/changhongchemical.com\/product\/irgacure-1173-cas-7473-98-5\/\">1173<\/a> and benzophenones. Recommended usage concentration: 0.3-5%.<\/p>\n<p>&nbsp;<\/p>\n<p><strong><b>907 Photoinitiateur<\/b><\/strong><\/p>\n<p><strong><b>Nom chimique :<\/b><\/strong>\u00a02-M\u00e9thyl-1-[4-m\u00e9thylthioph\u00e9nyl]-2-malonyl-1-propanone<\/p>\n<p><strong><b>Longueur d'onde d'absorption :<\/b><\/strong>\u00a0231, 307 nm<\/p>\n<p><strong><b>Caract\u00e9ristiques du produit :<\/b><\/strong>\u00a0Excellentes performances avec GK-ITX<\/p>\n<p>Application du produit : le 907 est un photo-initiateur de type radical (I) tr\u00e8s efficace utilis\u00e9 pour le durcissement en profondeur des syst\u00e8mes color\u00e9s.<\/p>\n<p>tels que les adh\u00e9sifs, les composites, les encres d'impression lithographique, les encres flexographiques, les encres de s\u00e9rigraphie offset et les vernis.<\/p>\n<p>Il est \u00e9galement utilis\u00e9 dans l'industrie \u00e9lectronique, notamment pour les photor\u00e9sistances, les encres de masque de soudure et les plaques d'impression. Taux d'ajout recommand\u00e9<\/p>\n<p>est de 2-6% w\/w.<\/p>\n<p>&nbsp;<\/p>\n<p><strong><b>Photoinitiateur ITX<\/b><\/strong><\/p>\n<p><strong><b>Nom chimique :<\/b><\/strong>\u00a02-Isopropylthioanthraquinone (m\u00e9lange d'isom\u00e8res 2,4)<\/p>\n<p><strong><b>Longueur d'onde d'absorption :<\/b><\/strong>\u00a0258, 382 nm<\/p>\n<p><strong><b>Caract\u00e9ristiques du produit :<\/b><\/strong>\u00a0L'ITX est un photo-initiateur de type radical (II) tr\u00e8s efficace qui agit comme un sensibilisateur lorsqu'il est utilis\u00e9 avec des photo-initiateurs anioniques.<\/p>\n<p>Application du produit : ITX est utilis\u00e9 pour le durcissement en couche des r\u00e9sines correspondantes avec des co-initiateurs \u00e0 base d'amines tertiaires. Il pr\u00e9sente d'excellents effets de synergie lorsqu'il est utilis\u00e9 avec le 907. Il convient aux encres de s\u00e9rigraphie transparentes ou color\u00e9es durcissables aux UV, aux vernis de copie et aux encres d'impression offset durcissables aux UV.<\/p>\n<p><strong><b>Applications :<\/b><\/strong>\u00a0ITX est utilis\u00e9 pour le durcissement en couche de r\u00e9sines compatibles avec des co-initiateurs \u00e0 base d'amines tertiaires, et pr\u00e9sente une excellente synergie avec le 907. Il convient aux encres s\u00e9rigraphiques transparentes ou color\u00e9es durcissables aux UV, aux vernis de photocopie, aux encres offset, aux encres flexographiques, \u00e0 l'\u00e9lectronique, aux rev\u00eatements chirurgicaux, aux adh\u00e9sifs et aux r\u00e9sines photosensibles. G\u00e9n\u00e9ralement utilis\u00e9 avec le synergiste amine EDB, le dosage recommand\u00e9 est de 0,2-2% w\/w.<\/p>\n<p>&nbsp;<\/p>\n<p><strong><b>Photoinitiateur EDB<\/b><\/strong><\/p>\n<p><strong><b>Nom chimique :<\/b><\/strong>\u00a04-dim\u00e9thylaminobenzoate d'\u00e9thyle<\/p>\n<p><strong><b>Longueur d'onde d'absorption :<\/b><\/strong>\u00a0228, 308 nm<\/p>\n<p><strong><b>Caract\u00e9ristiques du produit :<\/b><\/strong>\u00a0L'EDB est un co-initiateur amin\u00e9 tr\u00e8s efficace. Utilis\u00e9 avec des photo-initiateurs de type radicalaire (I1), il convient \u00e0 la polym\u00e9risation UV de monom\u00e8res et d'oligom\u00e8res monofonctionnels ou multifonctionnels.<\/p>\n<p>Applications : L'EDB est un synergiste amin\u00e9 solide utilis\u00e9 dans les encres d'impression offset, les adh\u00e9sifs, les encres de s\u00e9rigraphie, les encres pour masques de soudure et les produits connexes. G\u00e9n\u00e9ralement utilis\u00e9 avec ITX ou 907, le taux d'addition recommand\u00e9 est de 2-5% w\/w.<\/p>\n<p>&nbsp;<\/p>\n<p><strong><b>184 Photoinitiateur<\/b><\/strong><\/p>\n<p><strong><b>Nom chimique : <\/b><\/strong>1-Hydroxycyclohexyl-diph\u00e9nylc\u00e9tone<\/p>\n<p><strong><b>Longueur d'onde d'absorption : <\/b><\/strong>244 nm ; GK-184<\/p>\n<p><strong><b>Caract\u00e9ristiques du produit :<\/b><\/strong>\u00a0Utilis\u00e9 dans les syst\u00e8mes de durcissement de surface, il pr\u00e9sente d'excellentes performances lorsqu'il est associ\u00e9 au TPO.<\/p>\n<p><strong><b>Applications du produit :<\/b><\/strong>\u00a0184 est utilis\u00e9 dans les vernis pour photocopieurs, les rev\u00eatements plastiques, les rev\u00eatements pour le bois, les adh\u00e9sifs, l'impression lithographique.<\/p>\n<p>les encres d'imprimerie, les encres de s\u00e9rigraphie, les encres flexographiques et les produits \u00e9lectroniques. Il est g\u00e9n\u00e9ralement ajout\u00e9 \u00e0 d'autres photo-initiateurs et peut<\/p>\n<p>\u00eatre utilis\u00e9 avec des absorbeurs d'UV si n\u00e9cessaire. Le dosage recommand\u00e9 dans les formulations est de 2-59% w\/w.<\/p>\n<p>&nbsp;<\/p>\n<p><strong><b>1173 Photoinitiateur<\/b><\/strong><\/p>\n<p><strong><b>Nom chimique :<\/b><\/strong>\u00a02-Hydroxy-2-m\u00e9thyl-1-ph\u00e9nyl-1-propanone<\/p>\n<p><strong><b>Longueur d'onde d'absorption :<\/b><\/strong>\u00a0244nm Caract\u00e9ristiques du produit : Liquide, hautement compatible avec les m\u00e9langes<\/p>\n<p><strong><b>Application du produit :<\/b><\/strong>\u00a01173 est utilis\u00e9 dans les syst\u00e8mes de durcissement de surface, pour les syst\u00e8mes de vernis acryliques \u00e0 durcissement UV tels que le bois,<\/p>\n<p>Les syst\u00e8mes de vernis pour le m\u00e9tal, le papier et le plastique. Le 1173 est particuli\u00e8rement recommand\u00e9 pour les rev\u00eatements durcissant aux UV qui n\u00e9cessitent une exposition prolong\u00e9e \u00e0 la lumi\u00e8re du soleil et une r\u00e9sistance au jaunissement. Taux d'addition recommand\u00e9 : 1-4% w\/w.<\/p>\n<p>&nbsp;<\/p>\n<p><strong><b>Photoinitiateur BDK<\/b><\/strong><\/p>\n<p><strong><b>Nom chimique :<\/b><\/strong>\u00a0\u00c9ther dim\u00e9thylique de benjoin, \u00e9quivalent \u00e0 651 Longueur d'onde d'absorption : 205-253 nm<\/p>\n<p><strong><b>Application du produit :<\/b><\/strong>\u00a0Le BDK est utilis\u00e9 dans les syst\u00e8mes de durcissement color\u00e9s et est largement appliqu\u00e9 dans divers syst\u00e8mes de durcissement aux UV, les encres pour PCB, les syst\u00e8mes d'encre UV et les syst\u00e8mes de vernis o\u00f9 il pr\u00e9sente de fortes propri\u00e9t\u00e9s d'absorption. Taux d'ajout recommand\u00e9 : 2-5% w\/w.<\/p>\n<p><strong><b><img decoding=\"async\" class=\"alignnone size-full wp-image-9083\" src=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/4-7.webp\" alt=\"\" width=\"3462\" height=\"2084\" srcset=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/4-7.webp 3462w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/4-7-768x462.webp 768w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/4-7-1536x925.webp 1536w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/4-7-2048x1233.webp 2048w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/4-7-18x12.webp 18w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/4-7-1196x720.webp 1196w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/4-7-600x361.webp 600w\" sizes=\"(max-width: 3462px) 100vw, 3462px\" \/><\/b><\/strong><\/p>\n<p><strong><b>Photoinitiateur OMBB<\/b><\/strong><\/p>\n<p><strong><b>Nom chimique :<\/b><\/strong>\u00a02-benzoylbenzoate de m\u00e9thyle<\/p>\n<p><strong><b>Longueur d'onde d'absorption :<\/b><\/strong>\u00a0253nm<\/p>\n<p><strong><b>Caract\u00e9ristiques du produit :<\/b><\/strong>\u00a0Syst\u00e8me de durcissement \u00e0 faible odeur<\/p>\n<p><strong><b>Applications du produit :<\/b><\/strong>\u00a0Le 0MBB est largement utilis\u00e9 dans les emballages inodores et non toxiques pour le papier et les produits alimentaires. Associ\u00e9 au TPO, il am\u00e9liore l'efficacit\u00e9 du durcissement.<\/p>\n<p>&nbsp;<\/p>\n<p><strong><b>Principes d'utilisation des photo-initiateurs<\/b><\/strong><\/p>\n<p>(1) Les photo-initiateurs doivent \u00eatre utilis\u00e9s en combinaison avec l'acc\u00e9l\u00e9rateur d'amine EDAB.<\/p>\n<p>(2) Faible odeur, non toxique et sans danger pour l'environnement.<\/p>\n<p>(3) \u00c9conomiques et facilement disponibles, avec des co\u00fbts de production faibles.<\/p>\n<p>(4) S\u00e9lectionner les photo-initiateurs ayant une r\u00e9activit\u00e9 appropri\u00e9e en fonction du type de pr\u00e9polym\u00e8re et de monom\u00e8re.<\/p>\n<p>(5) Bonne solubilit\u00e9 et bonne r\u00e9activit\u00e9, n\u00e9cessitant un dosage minimal tout en offrant une grande efficacit\u00e9 d'amor\u00e7age.<\/p>\n<p>(6) Poss\u00e9der une stabilit\u00e9 thermique ad\u00e9quate, r\u00e9sister \u00e0 la d\u00e9composition en dessous de 85\u00b0C, et pr\u00e9senter une stabilit\u00e9 de stockage \u00e0 long terme.<\/p>\n<p>(7) Il est pr\u00e9f\u00e9rable d'utiliser un m\u00e9lange de plusieurs photo-initiateurs pour amorcer le durcissement dans diff\u00e9rentes gammes de longueurs d'onde, ce qui permet d'obtenir des vitesses de durcissement plus rapides qu'avec un seul photo-initiateur.<\/p>\n<p>Le contenu ci-dessus donne un aper\u00e7u des photo-initiateurs, y compris leur m\u00e9canisme d'action, les exigences de performance, les types communs, les caract\u00e9ristiques et les principes d'utilisation.<\/p>\n<p>Les photo-initiateurs sont des composants essentiels des syst\u00e8mes de r\u00e9action de photopolym\u00e9risation par rayonnement UV radicalaire. Leur type et leur dosage influencent consid\u00e9rablement le comportement de photopolym\u00e9risation du syst\u00e8me et jouent un r\u00f4le d\u00e9cisif dans la d\u00e9termination de la sensibilit\u00e9 du syst\u00e8me de photopolym\u00e9risation.<\/p>\n<p>J'esp\u00e8re que cet article vous aidera \u00e0 mieux comprendre les photo-initiateurs !<\/p>\n<p>&nbsp;<\/p>\n<p>CHROM\u00c9CLAIR offre Base coats, Top coats, solid color <a href=\"https:\/\/chromeclair.com\/product-category\/solid-color-gel-polish\/\"><u>gel polish sans HEMA<\/u><\/a>et <a href=\"http:\/\/chromeclair.com\/product\/cat-eye-gel-polish-hema-free-and-tpo-free-ce08\/\"><u>Vernis gel pour les yeux de chat sans h\u00e9matome<\/u><\/a>.<\/p>\n<p><a href=\"https:\/\/chromeclair.com\/product-category\/cat-eye-gel-polish\/page\/2\/\"><img decoding=\"async\" class=\"alignnone size-full wp-image-8989\" src=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/hema-free-gel-polish-3.webp\" alt=\"\" width=\"3462\" height=\"2084\" srcset=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/hema-free-gel-polish-3.webp 3462w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/hema-free-gel-polish-3-768x462.webp 768w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/hema-free-gel-polish-3-1536x925.webp 1536w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/hema-free-gel-polish-3-2048x1233.webp 2048w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/hema-free-gel-polish-3-18x12.webp 18w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/hema-free-gel-polish-3-1196x720.webp 1196w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/hema-free-gel-polish-3-600x361.webp 600w\" sizes=\"(max-width: 3462px) 100vw, 3462px\" \/><\/a>Leur site web propose \u00e9galement des tutoriels de nail art, comme par exemple :<\/p>\n<p class=\"entry-title\"><a href=\"https:\/\/chromeclair.com\/how-to-do-the-checkered-print-nail-art-at-home\/\">Comment r\u00e9aliser le Nail Art \u00e0 carreaux \u00e0 la maison ?<\/a><\/p>\n<p class=\"entry-title\"><a href=\"https:\/\/chromeclair.com\/get-a-sheer-french-manicure-without-crystal-glue\/\">Obtenez une manucure fran\u00e7aise transparente sans colle de cristal !<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Hello everyone! I&#8217;m a star employee at CHROM\u00c9CLAIR, a brand of hema free gel polish.Today, I&#8217;ll organize and explain the knowledge about photoinitiators, hoping it will be helpful to you. Although the American company&#8230;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[198],"tags":[],"class_list":["post-9079","post","type-post","status-publish","format-standard","hentry","category-gel-polish"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What does a photoinitiator do?- Changhong Chemical<\/title>\n<meta name=\"description\" content=\"Hello everyone! I&#039;m a star employee at CHROM\u00c9CLAIR, a brand of hema free gel polish.Today, I&#039;ll organize and explain the knowledge about photoinitiators, hoping it will be helpful to you.Although the American company Inmot obtained the first patent for ultraviolet light curing as early as 1946,Bayer of Germany industrialized UV light curing technology in 1967, introducing the concept of photoinitiators. Since then, photoinitiators have undergone continuous development. Today, the market offers a wide variety of photoinitiators. 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I&#039;m a star employee at CHROM\u00c9CLAIR, a brand of hema free gel polish.Today, I&#039;ll organize and explain the knowledge about photoinitiators, hoping it will be helpful to you.Although the American company Inmot obtained the first patent for ultraviolet light curing as early as 1946,Bayer of Germany industrialized UV light curing technology in 1967, introducing the concept of photoinitiators. Since then, photoinitiators have undergone continuous development. Today, the market offers a wide variety of photoinitiators. 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I'm a star employee at CHROM\u00c9CLAIR, a brand of hema free gel polish.Today, I'll organize and explain the knowledge about photoinitiators, hoping it will be helpful to you.Although the American company Inmot obtained the first patent for ultraviolet light curing as early as 1946,Bayer of Germany industrialized UV light curing technology in 1967, introducing the concept of photoinitiators. Since then, photoinitiators have undergone continuous development. Today, the market offers a wide variety of photoinitiators. Today, Keyou Company provides a detailed overview of photoinitiators, covering their mechanisms of action, performance requirements, common types,characteristics, and usage principles.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/what-does-a-photoinitiator-do\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/changhongchemical.com\\\/what-does-a-photoinitiator-do\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/what-does-a-photoinitiator-do\\\/#primaryimage\",\"url\":\"https:\\\/\\\/changhongchemical.com\\\/wp-content\\\/uploads\\\/2025\\\/10\\\/1-7.webp\",\"contentUrl\":\"https:\\\/\\\/changhongchemical.com\\\/wp-content\\\/uploads\\\/2025\\\/10\\\/1-7.webp\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/what-does-a-photoinitiator-do\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/changhongchemical.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"What does a photoinitiator do?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/#website\",\"url\":\"https:\\\/\\\/changhongchemical.com\\\/\",\"name\":\"Changhong Chemical\",\"description\":\"China chemical manufacturer \uff06 supplier\",\"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\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Que fait un photo-initiateur ? - Changhong Chemical","description":"Bonjour \u00e0 toutes et \u00e0 tous ! Aujourd'hui, je vais organiser et expliquer les connaissances sur les photo-initiateurs, en esp\u00e9rant que cela vous sera utile.Bien que la soci\u00e9t\u00e9 am\u00e9ricaine Inmot ait obtenu le premier brevet pour le durcissement \u00e0 la lumi\u00e8re ultraviolette d\u00e8s 1946, la soci\u00e9t\u00e9 allemande Bayer a industrialis\u00e9 la technologie de durcissement \u00e0 la lumi\u00e8re UV en 1967, en introduisant le concept de photo-initiateurs. Depuis lors, les photo-initiateurs n'ont cess\u00e9 d'\u00e9voluer. Aujourd'hui, le march\u00e9 offre une grande vari\u00e9t\u00e9 de photo-initiateurs. Aujourd'hui, Keyou Company fournit un aper\u00e7u d\u00e9taill\u00e9 des photo-initiateurs, couvrant leurs m\u00e9canismes d'action, les exigences de performance, les types communs, les caract\u00e9ristiques et les principes d'utilisation.","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\/what-does-a-photoinitiator-do\/","og_locale":"fr_FR","og_type":"article","og_title":"What does a photoinitiator do?- 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 and explain the knowledge about photoinitiators, hoping it will be helpful to you.Although the American company Inmot obtained the first patent for ultraviolet light curing as early as 1946,Bayer of Germany industrialized UV light curing technology in 1967, introducing the concept of photoinitiators. Since then, photoinitiators have undergone continuous development. Today, the market offers a wide variety of photoinitiators. Today, Keyou Company provides a detailed overview of photoinitiators, covering their mechanisms of action, performance requirements, common types,characteristics, and usage principles.","og_url":"https:\/\/changhongchemical.com\/fr\/what-does-a-photoinitiator-do\/","og_site_name":"Changhong Chemical","article_published_time":"2025-10-24T07:32:30+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\/1-7.webp","type":"image\/webp"}],"author":"Changhong Chemical","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Changhong Chemical","Dur\u00e9e de lecture estim\u00e9e":"7 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/changhongchemical.com\/what-does-a-photoinitiator-do\/#article","isPartOf":{"@id":"https:\/\/changhongchemical.com\/what-does-a-photoinitiator-do\/"},"author":{"name":"Changhong Chemical","@id":"https:\/\/changhongchemical.com\/#\/schema\/person\/2a9593ff69d6db8f8ca0567ca3ed6b5d"},"headline":"What does a photoinitiator do?","datePublished":"2025-10-24T07:32:30+00:00","dateModified":"2026-04-27T11:16:05+00:00","mainEntityOfPage":{"@id":"https:\/\/changhongchemical.com\/what-does-a-photoinitiator-do\/"},"wordCount":1304,"publisher":{"@id":"https:\/\/changhongchemical.com\/#organization"},"image":{"@id":"https:\/\/changhongchemical.com\/what-does-a-photoinitiator-do\/#primaryimage"},"thumbnailUrl":"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-7.webp","articleSection":["Gel Polish"],"inLanguage":"fr-FR"},{"@type":"WebPage","@id":"https:\/\/changhongchemical.com\/what-does-a-photoinitiator-do\/","url":"https:\/\/changhongchemical.com\/what-does-a-photoinitiator-do\/","name":"Que fait un photo-initiateur ? - Changhong Chemical","isPartOf":{"@id":"https:\/\/changhongchemical.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/changhongchemical.com\/what-does-a-photoinitiator-do\/#primaryimage"},"image":{"@id":"https:\/\/changhongchemical.com\/what-does-a-photoinitiator-do\/#primaryimage"},"thumbnailUrl":"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-7.webp","datePublished":"2025-10-24T07:32:30+00:00","dateModified":"2026-04-27T11:16:05+00:00","description":"Bonjour \u00e0 toutes et \u00e0 tous ! Aujourd'hui, je vais organiser et expliquer les connaissances sur les photo-initiateurs, en esp\u00e9rant que cela vous sera utile.Bien que la soci\u00e9t\u00e9 am\u00e9ricaine Inmot ait obtenu le premier brevet pour le durcissement \u00e0 la lumi\u00e8re ultraviolette d\u00e8s 1946, la soci\u00e9t\u00e9 allemande Bayer a industrialis\u00e9 la technologie de durcissement \u00e0 la lumi\u00e8re UV en 1967, en introduisant le concept de photo-initiateurs. Depuis lors, les photo-initiateurs n'ont cess\u00e9 d'\u00e9voluer. Aujourd'hui, le march\u00e9 offre une grande vari\u00e9t\u00e9 de photo-initiateurs. Aujourd'hui, Keyou Company fournit un aper\u00e7u d\u00e9taill\u00e9 des photo-initiateurs, couvrant leurs m\u00e9canismes d'action, les exigences de performance, les types communs, les caract\u00e9ristiques et les principes d'utilisation.","breadcrumb":{"@id":"https:\/\/changhongchemical.com\/what-does-a-photoinitiator-do\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/changhongchemical.com\/what-does-a-photoinitiator-do\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/changhongchemical.com\/what-does-a-photoinitiator-do\/#primaryimage","url":"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-7.webp","contentUrl":"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-7.webp"},{"@type":"BreadcrumbList","@id":"https:\/\/changhongchemical.com\/what-does-a-photoinitiator-do\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/changhongchemical.com\/"},{"@type":"ListItem","position":2,"name":"What does a photoinitiator do?"}]},{"@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\/9079","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=9079"}],"version-history":[{"count":7,"href":"https:\/\/changhongchemical.com\/fr\/wp-json\/wp\/v2\/posts\/9079\/revisions"}],"predecessor-version":[{"id":9991,"href":"https:\/\/changhongchemical.com\/fr\/wp-json\/wp\/v2\/posts\/9079\/revisions\/9991"}],"wp:attachment":[{"href":"https:\/\/changhongchemical.com\/fr\/wp-json\/wp\/v2\/media?parent=9079"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/changhongchemical.com\/fr\/wp-json\/wp\/v2\/categories?post=9079"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/changhongchemical.com\/fr\/wp-json\/wp\/v2\/tags?post=9079"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}