{"id":7874,"date":"2025-01-29T13:33:33","date_gmt":"2025-01-29T13:33:33","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=7874"},"modified":"2026-04-28T10:42:49","modified_gmt":"2026-04-28T10:42:49","slug":"uv-letterpress-ink-photoinitiator","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/nl\/uv-letterpress-ink-photoinitiator\/","title":{"rendered":"UV-inkt voor hoogdruk - Fotoinitiator"},"content":{"rendered":"<p>UV-inkt voor hoogdruk - Fotoinitiator<\/p>\n<p>Letterpress is een van de vroegste drukmethoden die in de drukindustrie werden gebruikt, met de uitvinding van collodiondruk door Bi Sheng in de Song-dynastie, houtsneden door Wang Zhen in de Yuan-dynastie en looddrukken door Gutenberg in de 15e eeuw, die allemaal boekdruk zijn. Bij boekdruk wordt het grafische gedeelte opgetild op het oppervlak van de drukplaat en wordt de inkt alleen op het grafische gedeelte aangebracht en vervolgens rechtstreeks op het substraat overgebracht. Er zijn twee soorten boekdruk: het platformtype en het roterende type. Het platformtype heeft de drukplaat als een vlak oppervlak en de afdrukrol als een cilinder, terwijl het roterende type zowel de drukplaat als de afdrukrol als een cilinderstructuur heeft.<\/p>\n<p>3.6.1 Drukplaten maken voor boekdruk<br \/>\nDe platen die worden gebruikt voor hoogdruk zijn nu fotopolymeerhars hoogdrukplaten die worden gemaakt van gefotopolymeriseerde hars door middel van UV-belichting en ontwikkeling. Drukplaten van gefotopolymeriseerde hars worden verdeeld in twee soorten: vloeibare drukplaten van gefotopolymeriseerde hars en vaste drukplaten van gefotopolymeriseerde hars.<\/p>\n<p>(1) Vaste fotopolymeerhars Toppan platemaken<br \/>\nDe vaste fotopolymeer fotopolymeer hoogdrukplaat maakt gebruik van vast polymeermateriaal om de fotopolymeerplaat te prefabriceren. De structuur van de fotopolymeerplaat wordt getoond in Afbeelding 3-18.<\/p>\n<p>Afbeelding 3-18 Structuur van vaste fotopolymeer Toppanplaten<\/p>\n<p>De vaste harsplaat bestaat uit een verzadigd polymeer, een cross-linking agent en een fotoinitiator. De verzadigde polymeren zijn polyvinylalcoholderivaten, cellulosederivaten en polyamiden; de vernettingsmiddelen zijn divinylverbindingen; de fotoinitiatoren zijn voornamelijk benzo\u00ebthers of anthrachinonen. Nadat de bovenstaande componenten gelijkmatig zijn gemengd, worden ze gecoat op een polyester plaatbasis of aluminium basis met een anti-halatielaag, en na het drogen worden ze gemaakt tot een vaste fotogevoelige hars letterpressplaat. Er is ook een vaste harscomponent die wordt gemengd en geproduceerd door extrusiegieten.<\/p>\n<p>Solide fotopolymeerhars proces voor het maken van boekdrukplaten:<\/p>\n<p>Afdekken van het negatief \u2192 UV-belichting \u2192 ontwikkeling \u2192 drogen \u2192 nabelichting \u2192 drukplaat.<\/p>\n<p>Nadat de polyethyleen beschermfilm van de vaste harsplaat is verwijderd, worden het negatief en de gefotopolymeriseerde harslaag vacu\u00fcm gelamineerd, UV-belicht, het lichtdoorlatende gedeelte gecrosslinked en uitgehard om het grafische gedeelte te vormen, en het lichtdoorlatende gedeelte wordt verwijderd in het ontwikkelproces. Na het drogen wordt de tweede UV-belichting voldoende toegepast om de plaat volledig te laten stollen om de hardheid van de plaat te verbeteren en er een drukplaat van te maken.<\/p>\n<p>(2) Vloeibaar gefotopolymeriseerd hars Letterpress-platen maken<br \/>\nVloeibare fotopolymerisatiehars letterpress verwijst naar de vloeibare toestand van de hars v\u00f3\u00f3r sensibilisatie, en de hars letterpress wordt vast na sensibilisatie. Vloeibare harsversie van de fotopolymerisatiehars is voornamelijk onverzadigd polyester en polyurethaanacrylaat, crosslinkingagent voor onverzadigde bisalkenen of alkenen, fotoinitiatoren zijn voornamelijk benzo\u00ebtherklasse. Het proces voor het maken van platen van vloeibare fotopolymeerhars letterpressplaten is (zie Afbeelding 3-19):<\/p>\n<p>Coating met fotopolymeriserende hars \u2192 UV-belichting van zowel voor- als achterzijde \u2192 ontwikkeling \u2192 droging \u2192 nabelichting \u2192 drukplaat<\/p>\n<p>Afbeelding 3-19 Platemaken van vloeibare fotopolymeer letterpressplaten<\/p>\n<p>Vaste fotopolymeerharsdrukplaten en vloeibare fotopolymeerharsdrukplaten werden in de jaren 1970 en 1990 veel gebruikt voor het drukken van kranten en tijdschriften, etiketten, inpakpapier en briefhoofden. Door de lage resolutie van de drukplaten, de lage drukweerstand en de slechte drukkwaliteit werden ze echter geleidelijk vervangen door offsetdruk en flexodruk en verdwenen ze uit de geschiedenis van het drukken.<\/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>Aanbevolen productreferenties<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/nl\/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\/nl\/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\/nl\/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\/nl\/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>Veelgestelde Vragen voor kopers en formuleringsdeskundigen<\/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>Neem nu contact met ons op!<\/b><\/strong><\/h2>\n<p><!-- lc-qa-start --><\/p>\n<p><strong>Snel antwoord:<\/strong> For practical formulation work, photoinitiator screening starts with the light source and film build, then checks yellowing, adhesion, and cure completeness under real production conditions.<\/p>\n<p><!-- lc-qa-end --><\/p>\n<h4><strong><b>Als je Price nodig hebt, vul dan je contactgegevens in op het formulier hieronder. We nemen dan meestal binnen 24 uur contact met je op. Je kunt me ook een e-mail sturen <a href=\"mailto:info@longchangchemical.com\"><span style=\"color: #00ccff;\">info@longchangchemical.com<\/span><\/a>\u00a0tijdens kantooruren (8:30 tot 18:00 UTC+8 ma. ~ za.) of gebruik de live chat op de website voor een snel antwoord.<\/b><\/strong><\/h4>\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\/nl\/product\/photoinitiator-tpo-cas-75980-60-8\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/cas-270586-78-2\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-pd-01-cas-579-07-7\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-pbz-cas-2128-93-0\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-oxe-02-cas-478556-66-0\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-ombb\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-mpbz-6012\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-mbp-cas-134-84-9\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-mbf-cas-15206-55-0\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-lap-cas-85073-19-4\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-itx-cas-5495-84-1\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-emk\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-eha-cas-21245-02-3\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-edb-cas-10287-53-3\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-detx-cas-82799-44-8\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-cq\/\"><span style=\"color: #00ccff;\">Fotoinitiator CQ \/ Kamferchinon<\/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\/nl\/product\/photoinitiator-cbp-cas-134-85-0\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-bp-cas-119-61-9\/\"><span style=\"color: #00ccff;\">Fotoinitiator BP \/ Benzofenon<\/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\/nl\/product\/photoinitiator-bms\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-938\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-937-cas-71786-70-4\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-819-dw\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-819-irgacure-819-cas-162881-26-7\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-784-cas-125051-32-3\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-754-cas-211510-16-6-442536-99-4\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-6993-cas-71449-78-0\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-6976\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-379-cas-119344-86-4\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-369-cas-119313-12-1\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/photoinitiator-160\/\">Fotoinitiator 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\/nl\/product\/photoinitiator-1206\/\"><span style=\"color: #00ccff;\">Fotoinitiator 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\/nl\/product\/irgacure-1173-cas-7473-98-5\/\"><span style=\"color: #00ccff;\">Fotoinitiator 1173<\/span><\/a><\/td>\n<td>CAS 7473-98-5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Letterpress is one of the earliest printing methods utilized in the printing industry, with the invention of collodion printing by Bi Sheng in the Song Dynasty, woodcut printing by Wang<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[185],"tags":[],"class_list":["post-7874","post","type-post","status-publish","format-standard","hentry","category-photoinitiator"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>UV Letterpress Ink \u2013 Photoinitiator - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"Letterpress is one of the earliest printing methods utilized in the printing industry, with the invention of collodion printing by Bi Sheng in the Song...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangchemical.com\/nl\/uv-letterpress-ink-photoinitiator\/\" \/>\n<meta property=\"og:locale\" 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