{"id":5845,"date":"2023-01-12T04:32:10","date_gmt":"2023-01-12T04:32:10","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=5845"},"modified":"2026-04-28T10:42:13","modified_gmt":"2026-04-28T10:42:13","slug":"uv-machine-printing-troubleshooting","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/fr\/uv-machine-printing-troubleshooting\/","title":{"rendered":"D\u00e9pannage des machines d'impression UV"},"content":{"rendered":"<h1><strong>D\u00e9pannage des machines d'impression 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>D\u00e9faillance 1 : Apr\u00e8s la mise en marche de la machine, l'\u00e9cran de la fen\u00eatre CP2000 affiche une d\u00e9faillance du circuit d'huile, le voyant de signalisation de la d\u00e9faillance clignote.<\/p>\n<p>M\u00e9thode d'inspection : On a d'abord soup\u00e7onn\u00e9 que l'huile \u00e9tait moins abondante, mais le probl\u00e8me persiste apr\u00e8s le ravitaillement en carburant. V\u00e9rifiez le circuit d'huile et constatez que le filtre \u00e0 huile situ\u00e9 dans la partie sup\u00e9rieure de la cartouche est rouge, alors qu'il devrait \u00eatre vert dans des conditions normales. Retirer l'\u00e9l\u00e9ment filtrant pour le nettoyer et le r\u00e9installer, son indication sup\u00e9rieure est verte, la fen\u00eatre CP indique normal, la machine fonctionne normalement. Selon les instructions d'utilisation, l'\u00e9l\u00e9ment filtrant doit \u00eatre nettoy\u00e9 r\u00e9guli\u00e8rement.<\/p>\n<p>D\u00e9faut 2 : Lorsque le moteur 1M4 contr\u00f4lant la hauteur des dents pivotantes est r\u00e9gl\u00e9 \u00e0 l'aide de la fen\u00eatre CP2000, les chiffres de la fen\u00eatre CP2000 passent de grand \u00e0 petit et de petit \u00e0 grand, mais les chiffres r\u00e9gl\u00e9s en position d'arr\u00eat sautent, et le moteur 1M4 ne re\u00e7oit pas de tension continue de 24 V, et il ne tourne pas lors du r\u00e9glage.<\/p>\n<p>M\u00e9thode d'inspection : Le moteur 1M4 et le potentiom\u00e8tre 1R4 sont utilis\u00e9s pour r\u00e9gler la hauteur des dents pivotantes, et le signal de retour du 1R4 est envoy\u00e9 aux broches 6, 7 et 8 du SSRX23, et l'alimentation du 1M4 est assur\u00e9e par les broches B12 et 12 du SSRX20. La mesure B12, 12 pieds pas de puissance, indiquant que la carte ne sort pas, donc la carte est soup\u00e7onn\u00e9e de dommages, et \u00e0 c\u00f4t\u00e9 du m\u00eame type de carte de circuit imprim\u00e9 (num\u00e9ro de carte SSK200.781.3764\/01BAU) interchangeable, le d\u00e9faut reste, indiquant que la carte n'est pas un probl\u00e8me. La tension de 1R4 est normale (10V entre les deux lignes de rouge et de couleur, 5,2V entre les deux lignes de rouge et de noir, et 4,8V entre les deux lignes de rouge et de noir), ce qui signifie que le potentiom\u00e8tre est normal, mais qu'il n'y a pas de tension continue de 24V \u00e0 1M4. Coupez l'alimentation totale de la machine, retirez le fil du moteur (fil rouge et fil de couleur composite) des bornes 1M4X1 \u00e0 1 et 2, et mesurez la r\u00e9sistance de 1M4 \u00e0 13,6f2 normal. Au d\u00e9but, le moteur ne tournait toujours pas, mais apr\u00e8s des pressions positives et n\u00e9gatives r\u00e9p\u00e9t\u00e9es, le moteur a commenc\u00e9 \u00e0 tourner petit \u00e0 petit, et finalement le moteur a fonctionn\u00e9 normalement sous l'effet de l'\u00e9lectricit\u00e9 appliqu\u00e9e et a entra\u00een\u00e9 la rotation de l'engrenage de r\u00e9glage. Ensuite, la ligne de couleur rouge, Xu dans les bornes 1M4X1 1, 2, refermer l'alimentation totale, puis essayer le moteur fonctionnent normalement, les param\u00e8tres de la fen\u00eatre CP et ajuster la valeur de la correcte, le num\u00e9rique ne sautent plus.<\/p>\n<p>Analyser la cause de la d\u00e9faillance susmentionn\u00e9e : lorsque la carte de circuit imprim\u00e9 fournit une tension de 24 V CC au moteur, la machine ne tourne pas, de sorte que la protection de sortie de la carte de circuit imprim\u00e9, de sorte que la tension ne peut pas \u00eatre mesur\u00e9e, de sorte que l'on consid\u00e8re que la carte de circuit imprim\u00e9 de commande est d\u00e9faillante. Le moteur n'est pas utilis\u00e9 pendant une longue p\u00e9riode, l'arbre, l'engrenage de connexion, la douille de dent, etc. sont aggrav\u00e9s par la charge m\u00e9canique due \u00e0 l'huile du corps, et la charge devient plus l\u00e9g\u00e8re apr\u00e8s une pressurisation positive et n\u00e9gative r\u00e9p\u00e9t\u00e9e, et alors la carte de circuit imprim\u00e9 SSK20 peut fonctionner normalement lorsqu'elle est aliment\u00e9e.<\/p>\n<p>D\u00e9faut 3 : le quatri\u00e8me groupe d'eau s\u00e9rie 4M1 moteur tourner quand ne pas tourner, parfois appuyer sur le bouton de l'eau forte 4S21 apr\u00e8s le moteur peut tourner \u00e2me pendant une p\u00e9riode de temps, et parfois CP fen\u00eatre alarme, la machine ne peut pas fonctionner normalement.<\/p>\n<p>M\u00e9thode d'inspection : le 4e groupe de fils de moteur I14M1 et le 3e groupe de moteurs de la s\u00e9rie Water s'\u00e9changent, afin de d\u00e9terminer si le moteur est bon ou mauvais ; 4M1 sera retir\u00e9, et la rotation m\u00e9canique ne pr\u00e9sentera pas de ph\u00e9nom\u00e8ne de blocage ; la carte de circuit imprim\u00e9 de contr\u00f4le de la machine auxiliaire de l'\u00e2me \u00e9lectrique de l'armoire \u00e9lectrique de l'eau, le 4e groupe et d'autres groupes de cartes de circuit imprim\u00e9 (num\u00e9ro de carte de circuit imprim\u00e9 LTK50000781.3680\/02) s'\u00e9changent. En g\u00e9n\u00e9ral, les m\u00e9thodes ci-dessus permettent de r\u00e9soudre ce type de panne, mais la panne de la machine est diff\u00e9rente : le moteur est normal, la carte de circuit imprim\u00e9 est intacte, la rotation m\u00e9canique est normale, et la connexion, la prise de courant, la prise de courant, ne pr\u00e9sentent aucun point de d\u00e9faillance. Dans le seau d'eau, il y a une d\u00e9tection de la pr\u00e9sence du capteur de liquide mouillant 4B32, l'inspection a r\u00e9v\u00e9l\u00e9 qu'il est parfois bon et parfois mauvais, nettoyer sa surface apr\u00e8s que la machine a travaill\u00e9 pendant un certain temps, puis la d\u00e9faillance mentionn\u00e9e ci-dessus. Enlever 4B32 avec une loupe, a trouv\u00e9 que le haut du capteur a une fissure, indiquant que le d\u00e9faut est ici, pour assurer la production premi\u00e8re sortie courte, la machine peut fonctionner, dans l'achat du m\u00eame type de remplacement de capteur apr\u00e8s la machine fonctionne normalement.<\/p>\n<p>D\u00e9faut 4 : Au moment de la coupure de courant, le changement de tension est trop \u00e9lev\u00e9, la carte de circuit d'alimentation (GRM120) sur la grande r\u00e9sistance chauffe, cuite \u00e0 c\u00f4t\u00e9 de la petite carte de circuit de d\u00e9tection (RSK120), de sorte que la machine ne fonctionne pas correctement, la fen\u00eatre CP2000 affiche le d\u00e9faut 15.<\/p>\n<p>M\u00e9thode d'inspection : v\u00e9rifier l'assurance GRM120 F3 normale, la grande r\u00e9sistance est normale, la tension de sortie est normale, mais le substrat RSK120 br\u00fbl\u00e9, l'original endommag\u00e9, a d\u00fb en acheter un nouveau, remplac\u00e9 la machine fonctionne normalement. Il convient de rappeler aux op\u00e9rateurs qu'en cas d'arr\u00eat, il faut attendre quelques minutes avant de fermer l'interrupteur principal de la machine, ce qui est tr\u00e8s bon pour les machines de pr\u00e9cision.<\/p>\n<p>&nbsp;<\/p>\n<h2><strong>Mati\u00e8res premi\u00e8res de l'encre UV :\u00a0<\/strong><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>How formulators usually evaluate this photoinitiator topic<\/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-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<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-cq\/\">CHLUMINIT CQ<\/a>:<\/strong> A direct reference for visible-light and color-sensitive curing discussions.<\/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>Failure 1: After the machine is turned on CP2000 window display oil circuit failure, the fault signal light flashes. Inspection method: Initially suspected that the oil is less, the fault<\/p>","protected":false},"author":1,"featured_media":5208,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-5845","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>UV machine printing troubleshooting - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"Failure 1: After the machine is turned on CP2000 window display oil circuit failure, the fault signal light flashes. 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