{"id":5829,"date":"2023-01-05T12:15:58","date_gmt":"2023-01-05T12:15:58","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=5829"},"modified":"2026-04-28T10:42:12","modified_gmt":"2026-04-28T10:42:12","slug":"solve-the-problem-of-incomplete-curing-of-uv-coating","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/fr\/solve-the-problem-of-incomplete-curing-of-uv-coating\/","title":{"rendered":"Comment r\u00e9soudre le probl\u00e8me du durcissement incomplet du vernis UV ?"},"content":{"rendered":"<h1><strong>Comment r\u00e9soudre le probl\u00e8me du durcissement incomplet du vernis UV ?<\/strong><\/h1>\n<p><!-- lc-qa-start --><\/p>\n<p><strong>Quick answer:<\/strong> Photoinitiator choice is usually driven by lamp match, cure depth, yellowing, and whether the final film still performs on the real substrate. The best package is rarely the cheapest single grade.<\/p>\n<p><!-- lc-qa-end --><\/p>\n<p>La technologie du vernis UV est devenue le pilier des vernis verts en raison de son respect de l'environnement, de sa grande efficacit\u00e9 et de sa duret\u00e9 \u00e9lev\u00e9e, et elle est in\u00e9vitablement et de plus en plus accept\u00e9e dans un large \u00e9ventail d'applications. La gamme des substrats sur lesquels elle peut \u00eatre appliqu\u00e9e a \u00e9volu\u00e9 du bois et du papier aux plastiques, m\u00e9taux, c\u00e9ramiques, verre et autres domaines.<\/p>\n<p>&nbsp;<\/p>\n<p>Principe et caract\u00e9ristiques du s\u00e9chage UV<\/p>\n<p>Le durcissement aux UV (durcissement aux UV) fait r\u00e9f\u00e9rence \u00e0 une forte irradiation de lumi\u00e8re ultraviolette, au syst\u00e8me de substances photosensibles dans la r\u00e9action chimique pour produire des fragments actifs, d\u00e9clenchant le syst\u00e8me de monom\u00e8re actif ou la polym\u00e9risation zwitterionique, la r\u00e9ticulation, de sorte que le syst\u00e8me du rev\u00eatement liquide se transforme instantan\u00e9ment en un rev\u00eatement solide. Le processus de durcissement est un processus de r\u00e9action photochimique, c'est-\u00e0-dire que sous l'action de l'\u00e9nergie de la lumi\u00e8re ultraviolette, le pr\u00e9polym\u00e8re est transform\u00e9 en un film dans un laps de temps tr\u00e8s court ; la lumi\u00e8re UV provoque non seulement le durcissement de la surface du mat\u00e9riau, mais aussi une plus grande p\u00e9n\u00e9tration dans l'encre liquide durcissable aux UV et stimule le durcissement ult\u00e9rieur de l'encre en profondeur ; par rapport \u00e0 l'encre traditionnelle, la polym\u00e9risation et le s\u00e9chage de l'encre durcissable aux UV sont plus complets, sans \u00e9vaporation ni contaminants \u00e0 base de solvant, ce qui permet un durcissement de 100%. La technologie du durcissement par UV s'est d\u00e9velopp\u00e9e rapidement dans le monde, et rapidement dans les industries de l'\u00e9lectronique, de l'impression, de la construction, de la d\u00e9coration, de la m\u00e9decine, des machines, de la chimie et de l'automobile pour en promouvoir l'application.<\/p>\n<p>&nbsp;<\/p>\n<p>La technologie de s\u00e9chage UV est largement utilis\u00e9e, principalement en raison de ses avantages uniques : s\u00e9chage rapide, r\u00e9pondant aux besoins de la production automatis\u00e9e moderne ; absence de pollution, conforme \u00e0 l'orientation du d\u00e9veloppement des rev\u00eatements et encres modernes ; film de rev\u00eatement de haute qualit\u00e9, grande duret\u00e9, r\u00e9sistance aux rayures, r\u00e9sistance \u00e0 la corrosion et autres avantages, et elle a attir\u00e9 beaucoup d'attention.<\/p>\n<p>&nbsp;<\/p>\n<p>Nous examinons ici les six facteurs qui influencent le durcissement incomplet par la lumi\u00e8re UV.<\/p>\n<p>&nbsp;<\/p>\n<p>1, l'\u00e9nergie de la lumi\u00e8re ultraviolette.<\/p>\n<p>(1). L'\u00e9nergie de la lumi\u00e8re UV est insuffisante, g\u00e9n\u00e9ralement parce que la densit\u00e9 de puissance de production de la lampe UV est trop faible, ou parce que les param\u00e8tres du transformateur ne correspondent pas, ce qui entra\u00eene un durcissement incomplet.<\/p>\n<p>(2). Les rev\u00eatements UV dans le photo-initiateur ne sont pas suffisants pour absorber une \u00e9nergie UV raisonnable, ce qui entra\u00eene un durcissement incomplet.<\/p>\n<p>&nbsp;<\/p>\n<p>2. La temp\u00e9rature \u00e0 l'int\u00e9rieur du four UV est trop basse.<\/p>\n<p>Le four UV en raison d'un volume d'air excessif du ventilateur centrifuge, ou du r\u00f4le d'un refroidissement \u00e0 l'eau excessif, la situation de blocage de l'oxyg\u00e8ne est trop forte, ce qui entra\u00eene une temp\u00e9rature de surface de la lampe UV trop basse pour fonctionner correctement, d'o\u00f9 un durcissement incomplet des rev\u00eatements UV.<\/p>\n<p>&nbsp;<\/p>\n<p>3, la distance de la lampe \u00e0 photopolym\u00e9riser.<\/p>\n<p>La lampe UV et le r\u00e9flecteur et la distance entre la surface de l'objet \u00e9clair\u00e9 sont de 7 ~ 8cm lorsque l'\u00e9nergie UV est la plus forte, mais selon les diff\u00e9rents substrats de durcissement, la distance g\u00e9n\u00e9rale de durcissement est s\u00e9lectionn\u00e9e \u00e0 environ 10 ~ 15cm.<\/p>\n<p>(1). Si la distance est trop faible, la temp\u00e9rature de surface de la lampe UV \u00e9tant tr\u00e8s \u00e9lev\u00e9e, le substrat est d\u00e9form\u00e9 par la chaleur.<\/p>\n<p>(2). La distance est trop \u00e9lev\u00e9e, l'\u00e9nergie UV est faible, la surface du substrat n'est pas s\u00e8che et collante.<\/p>\n<p>&nbsp;<\/p>\n<p>4, l'\u00e9paisseur du vernis UV.<\/p>\n<p>L'\u00e9paisseur du rev\u00eatement UV joue un r\u00f4le cl\u00e9 dans l'effet du s\u00e9chage UV, en fonction de la teinte de la peinture, de la temp\u00e9rature, de la vitesse de s\u00e9chage, de la surface du substrat et d'autres conditions diff\u00e9rentes pour un d\u00e9ploiement appropri\u00e9.<\/p>\n<p>(1). Le vernis est trop \u00e9pais, le temps de s\u00e9chage est relativement long sous l'irradiation d'une source lumineuse de m\u00eame puissance, ce qui, d'une part, affecte le s\u00e9chage en profondeur du vernis UV et, d'autre part, rend la temp\u00e9rature de surface du substrat trop \u00e9lev\u00e9e, ce qui entra\u00eene la d\u00e9formation du substrat.<\/p>\n<p>(2). La couche de rev\u00eatement est trop fine, ce qui entra\u00eene une mauvaise brillance de la surface du produit et ne permet pas d'obtenir l'effet de surface souhait\u00e9.<\/p>\n<p>&nbsp;<\/p>\n<p>5. Vitesse de la bande transporteuse de la ligne d'enrobage.<\/p>\n<p>La vitesse du tapis roulant de l'\u00e9quipement, c'est-\u00e0-dire la vitesse de photopolym\u00e9risation, doit \u00eatre adapt\u00e9e en fonction des diff\u00e9rents substrats, rev\u00eatements et distances de polym\u00e9risation.<\/p>\n<p>(1). La vitesse de durcissement est trop rapide, le vernis UV de la surface du substrat est collant ou la surface est s\u00e8che mais pas l'int\u00e9rieur.<\/p>\n<p>(2). Si la vitesse d'ex\u00e9cution est lente, la surface du substrat vieillira.<\/p>\n<p>&nbsp;<\/p>\n<p>6, l'environnement du processus de photopolym\u00e9risation.<\/p>\n<p>La viscosit\u00e9 du vernis UV varie fortement en fonction de la temp\u00e9rature, il convient donc d'ajuster la temp\u00e9rature ambiante, g\u00e9n\u00e9ralement comprise entre 15 et 25 \u2103. Une temp\u00e9rature trop basse entra\u00eenera un ph\u00e9nom\u00e8ne de peau d'orange et il faut veiller \u00e0 ce que l'impression ne soit pas expos\u00e9e \u00e0 la lumi\u00e8re directe du soleil.<\/p>\n<p>&nbsp;<\/p>\n<h2><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/uv-photoinitiator\/\"><span style=\"color: #00ccff;\">Photoinitiateur UV<\/span><\/a> Produits de la m\u00eame s\u00e9rie<\/strong><\/h2>\n<p>&nbsp;<\/p>\n<table style=\"border-collapse: collapse; width: 435.77pt;\" border=\"0\" width=\"581\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt; width: 215.25pt;\" width=\"287\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-tpo-cas-75980-60-8\/\"><span style=\"color: #00ccff;\">Photoinitiateur TPO<\/span><\/a><\/td>\n<td style=\"width: 220.50pt;\" width=\"294\">CAS 75980-60-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/cas-270586-78-2\/\"><span style=\"color: #00ccff;\">Photoinitiateur TMO<\/span><\/a><\/td>\n<td>CAS 270586-78-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-pd-01-cas-579-07-7\/\"><span style=\"color: #00ccff;\">Photoinitiateur PD-01<\/span><\/a><\/td>\n<td>CAS 579-07-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-pbz-cas-2128-93-0\/\"><span style=\"color: #00ccff;\">Photoinitiateur PBZ<\/span><\/a><\/td>\n<td>CAS 2128-93-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-oxe-02-cas-478556-66-0\/\"><span style=\"color: #00ccff;\">Photoinitiateur OXE-02<\/span><\/a><\/td>\n<td>CAS 478556-66-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-ombb\/\"><span style=\"color: #00ccff;\">Photoinitiateur OMBB<\/span><\/a><\/td>\n<td>CAS 606-28-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-mpbz-6012\/\"><span style=\"color: #00ccff;\">Photoinitiateur MPBZ (6012)<\/span><\/a><\/td>\n<td>CAS 86428-83-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-mbp-cas-134-84-9\/\"><span style=\"color: #00ccff;\">Photoinitiateur MBP<\/span><\/a><\/td>\n<td>CAS 134-84-9<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-mbf-cas-15206-55-0\/\"><span style=\"color: #00ccff;\">Photoinitiateur MBF<\/span><\/a><\/td>\n<td>CAS 15206-55-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-lap-cas-85073-19-4\/\"><span style=\"color: #00ccff;\">Photoinitiateur LAP<\/span><\/a><\/td>\n<td>CAS 85073-19-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-itx-cas-5495-84-1\/\"><span style=\"color: #00ccff;\">Photoinitiateur ITX<\/span><\/a><\/td>\n<td>CAS 5495-84-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-emk\/\"><span style=\"color: #00ccff;\">Photoinitiateur EMK<\/span><\/a><\/td>\n<td>CAS 90-93-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-eha-cas-21245-02-3\/\"><span style=\"color: #00ccff;\">Photoinitiateur EHA<\/span><\/a><\/td>\n<td>CAS 21245-02-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-edb-cas-10287-53-3\/\"><span style=\"color: #00ccff;\">Photo-initiateur EDB<\/span><\/a><\/td>\n<td>CAS 10287-53-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-detx-cas-82799-44-8\/\"><span style=\"color: #00ccff;\">Photoinitiateur DETX<\/span><\/a><\/td>\n<td>CAS 82799-44-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-cq\/\"><span style=\"color: #00ccff;\">Photoinitiateur CQ \/ Camphorquinone<\/span><\/a><\/td>\n<td>CAS 10373-78-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-cbp-cas-134-85-0\/\"><span style=\"color: #00ccff;\">Photoinitiateur CBP<\/span><\/a><\/td>\n<td>CAS 134-85-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-bp-cas-119-61-9\/\"><span style=\"color: #00ccff;\">Photo-initiateur BP \/ Benzoph\u00e9none<\/span><\/a><\/td>\n<td>CAS 119-61-9<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-bms\/\"><span style=\"color: #00ccff;\">Photoinitiateur BMS<\/span><\/a><\/td>\n<td>CAS 83846-85-9<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-938\/\"><span style=\"color: #00ccff;\">Photoinitiateur 938<\/span><\/a><\/td>\n<td>CAS 61358-25-6<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-937-cas-71786-70-4\/\"><span style=\"color: #00ccff;\">Photoinitiateur 937<\/span><\/a><\/td>\n<td>CAS 71786-70-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-819-dw\/\"><span style=\"color: #00ccff;\">Photo-initiateur 819 DW<\/span><\/a><\/td>\n<td>CAS 162881-26-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-819-irgacure-819-cas-162881-26-7\/\"><span style=\"color: #00ccff;\">Photoinitiateur 819<\/span><\/a><\/td>\n<td>CAS 162881-26-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-784-cas-125051-32-3\/\"><span style=\"color: #00ccff;\">Photoinitiateur 784<\/span><\/a><\/td>\n<td>CAS 125051-32-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-754-cas-211510-16-6-442536-99-4\/\"><span style=\"color: #00ccff;\">Photoinitiateur 754<\/span><\/a><\/td>\n<td>CAS 211510-16-6 442536-99-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-6993-cas-71449-78-0\/\"><span style=\"color: #00ccff;\">Photoinitiateur 6993<\/span><\/a><\/td>\n<td>CAS 71449-78-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-6976\/\"><span style=\"color: #00ccff;\">Photoinitiateur 6976<\/span><\/a><\/td>\n<td>CAS 71449-78-0 89452-37-9 108-32-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-379-cas-119344-86-4\/\"><span style=\"color: #00ccff;\">Photoinitiateur 379<\/span><\/a><\/td>\n<td>CAS 119344-86-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-369-cas-119313-12-1\/\"><span style=\"color: #00ccff;\">Photoinitiateur 369<\/span><\/a><\/td>\n<td>CAS 119313-12-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-160\/\">Photoinitiateur 160<\/a><\/span><\/td>\n<td>CAS 71868-15-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-1206\/\"><span style=\"color: #00ccff;\">Photoinitiateur 1206<\/span><\/a><\/td>\n<td><\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/irgacure-1173-cas-7473-98-5\/\"><span style=\"color: #00ccff;\">Photoinitiateur 1173<\/span><\/a><\/td>\n<td>CAS 7473-98-5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><!-- lc-commercial-start --><\/p>\n<h2>A practical selection route for photoinitiator-related projects<\/h2>\n<p>When technical buyers or formulators screen photoinitiators, the most useful decision frame is usually cure quality plus application fit: which package cures reliably, keeps appearance acceptable, and still works under the lamp, film thickness, and substrate conditions of the actual process.<\/p>\n<ul>\n<li><strong>Match the package to the lamp first:<\/strong> mercury lamps, UV LEDs, and visible-light systems can rank the same photoinitiators very differently.<\/li>\n<li><strong>Check depth cure and surface cure separately:<\/strong> a film that feels dry on top can still be weak underneath.<\/li>\n<li><strong>Balance yellowing with reactivity:<\/strong> the strongest deep-cure route is not always the best commercial choice if color or migration risk becomes unacceptable.<\/li>\n<li><strong>Use the final formula as the benchmark:<\/strong> pigment load, monomer package, and film thickness can all change the apparent ranking of the same initiator.<\/li>\n<\/ul>\n<h3>Recommended product references<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-tpo-l-cas-84434-11-7\/\">CHLUMINIT TPO-L<\/a>:<\/strong> A strong low-yellowing reference for LED-oriented UV systems.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-819-irgacure-819-cas-162881-26-7\/\">CHLUMINIT 819<\/a>:<\/strong> Useful when a formulation needs stronger absorption and deeper cure support.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/irgacure-1173-cas-7473-98-5\/\">CHLUMINIT 1173<\/a>:<\/strong> A practical comparison point for classic short-wave UV initiation.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-itx-cas-5495-84-1\/\">CHLUMINIT ITX<\/a>:<\/strong> A useful long-wave support route in many printing-ink packages.<\/li>\n<\/ul>\n<h3>FAQ for buyers and formulators<\/h3>\n<p><strong>Why are blended photoinitiator packages so common?<\/strong><br \/>Because one product may control yellowing or lamp fit well while another improves cure depth or line-speed performance, so the full package is often stronger than any single grade.<\/p>\n<p><strong>Should incomplete cure always be solved by adding more initiator?<\/strong><br \/>Not automatically. The real limitation may be the lamp, film thickness, pigment shading, or the rest of the reactive system rather than simple under-dosage.<\/p>\n<p><!-- lc-commercial-end --><\/p>\n<h2><strong><b>Contactez-nous d\u00e8s maintenant !<\/b><\/strong><\/h2>\n<h4><strong><b>Si vous avez besoin de COA, MSDS ou TDS, veuillez indiquer vos coordonn\u00e9es dans le formulaire ci-dessous. Nous vous contacterons g\u00e9n\u00e9ralement dans les 24 heures.<\/b><\/strong> Vous pouvez \u00e9galement m'envoyer un courriel <a href=\"mailto:info@longchangchemical.com\"><span style=\"color: #0000ff;\">info@longchangchemical.com<\/span><\/a> pendant les heures de travail ( 8:30 am to 6:00 pm UTC+8 Mon.~Sat. ) ou utilisez le chat en direct du site web pour obtenir une r\u00e9ponse rapide.<\/h4>","protected":false},"excerpt":{"rendered":"<p>UV coating technology has become the mainstay of green coatings because of its environmental friendliness, high efficiency and high hardness, and is inevitably and increasingly accepted in a wide range<\/p>","protected":false},"author":1,"featured_media":5190,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-5829","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-catalysts-chemical-auxiliary-agents"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to solve the problem of incomplete curing of UV coating? 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