{"id":5021,"date":"2022-01-26T14:39:05","date_gmt":"2022-01-26T14:39:05","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=5021"},"modified":"2026-04-28T10:41:55","modified_gmt":"2026-04-28T10:41:55","slug":"process-and-advantages-of-uv-curing-powders","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/hu\/process-and-advantages-of-uv-curing-powders\/","title":{"rendered":"Az UV-h\u0151kezel\u0151 porok folyamata \u00e9s el\u0151nyei"},"content":{"rendered":"<h1><strong>Az UV-h\u0151kezel\u0151 porok folyamata \u00e9s el\u0151nyei<\/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>Az MDF k\u00f6nnyen feldolgozhat\u00f3, \u00e9s homog\u00e9n \u00e9s egyenletes fel\u00fclettel rendelkezik. A term\u00e9szetes fa is porsz\u00f3rtan bevonhat\u00f3, de a fel\u00fclet egyenetlen lehet. A term\u00e9szetes fa gyanta- \u00e9s nedvess\u00e9gtartalm\u00e1nak v\u00e1ltoz\u00e1sa miatt probl\u00e9m\u00e1k l\u00e9phetnek fel a ki\u00e1raml\u00e1ssal \u00e9s a lyukakkal.<\/p>\n<p>A term\u00e9szetes fa s\u0171r\u0171s\u00e9ge, rost-, gyanta- \u00e9s nedvess\u00e9gtartalma fafajt\u00e1nk\u00e9nt v\u00e1ltozik, emellett a term\u0151hely hat\u00e1sa is befoly\u00e1solja, \u00e9s m\u00e9g ha a fafajta azonos is, minden fa m\u00e1s \u00e9s m\u00e1s.<\/p>\n<p>Mivel a porbevon\u00e1si elj\u00e1r\u00e1s sor\u00e1n a por megolvaszt\u00e1s\u00e1hoz h\u0151t haszn\u00e1lnak, m\u00e9g alacsonyabb h\u0151m\u00e9rs\u00e9kleten \u00e9s r\u00f6vid expoz\u00edci\u00f3s id\u0151 eset\u00e9n is, a h\u0151 ellen\u0151rizhetetlen reakci\u00f3kat okozhat a term\u00e9szetes f\u00e1ban. Ez k\u00fcl\u00f6n\u00f6sen probl\u00e9m\u00e1ss\u00e1 teszi az egyenletes fel\u00fclet el\u00e9r\u00e9s\u00e9t, amikor a porbevonatokat term\u00e9szetes f\u00e1ra viszik fel. Az MDF-lemezek UV-kem\u00e9ny\u00edtett porbevonata egyenletesebb, vizu\u00e1lisan kellemesebb fel\u00fcletet eredm\u00e9nyez.<\/p>\n<p>UV-curable powder coatings are produced by combining resins, pigments, high performance additives and photoinitiators. Photoinitiators such as <a href=\"https:\/\/longchangchemical.com\/hu\/product\/cas-270586-78-2\/\">Fotoinici\u00e1tor TMO<\/a> \u00e9s <a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-tpo-l-cas-84434-11-7\/\">Photoinitiator TPO-L<\/a> are key components because they absorb high-intensity UV light and generate and activate free radicals to crosslink the coating. Curing is the cross-linking of the entire coating at the molecular level and is an instantaneous curing stage. &#8220;As soon as the photoinitiator is exposed to UV light, crosslinking occurs and the coating cures immediately,&#8221; said Lonchak.<\/p>\n<p>Az adal\u00e9kanyagok jav\u00edtj\u00e1k a bevonat fel\u00fclet\u00e9t az\u00e1ltal, hogy jav\u00edtj\u00e1k vagy be\u00e1ll\u00edtj\u00e1k bizonyos tulajdons\u00e1gait - karcol\u00e1s- vagy mar\u00e1s\u00e1ll\u00f3s\u00e1g, f\u00e9nyess\u00e9g \u00e9s text\u00fara. A pigmentek a sz\u00ednt \u00e9s az opacit\u00e1st hozz\u00e1k l\u00e9tre.<\/p>\n<p>Az UV-kem\u00e9ny\u00edtett porbevonatokat ugyan\u00fagy \u00e1ll\u00edtj\u00e1k el\u0151, mint a h\u0151re kem\u00e9nyed\u0151 porbevonatokat, ugyanolyan t\u00edpus\u00fa berendez\u00e9sekkel - a folyamatok k\u00f6z\u00e9 tartozik a kever\u00e9s, az extrud\u00e1l\u00e1s, a h\u0171t\u00e9s, a szeletel\u00e9s, a csiszol\u00e1s, az oszt\u00e1lyoz\u00e1s, a szit\u00e1l\u00e1s \u00e9s a csomagol\u00e1s.<\/p>\n<p>A j\u00f3 kem\u00e9nyed\u00e9si hat\u00e1s el\u00e9r\u00e9se \u00e9rdek\u00e9ben \u00f6ssze kell hangolni a fotoinici\u00e1tor t\u00edpus\u00e1t \u00e9s mennyis\u00e9g\u00e9t az UV-f\u00e9nyforr\u00e1ssal, bele\u00e9rtve az UV energiad\u00f3zis, az intenzit\u00e1s \u00e9s a hull\u00e1mhossz megfelel\u0151 kombin\u00e1ci\u00f3j\u00e1t.<\/p>\n<p>A porbevonatok UV-h\u0151kezel\u00e9s\u00e9hez t\u00f6bbf\u00e9le k\u00f6zepes nyom\u00e1s\u00fa higanyg\u0151z UV-l\u00e1mpa \u00e1ll rendelkez\u00e9sre. A higanyl\u00e1mp\u00e1k (\"H\" l\u00e1mp\u00e1k) r\u00f6vid hull\u00e1mhossz\u00fa (220-320 nm) UV-energi\u00e1t biztos\u00edtanak, \u00e9s alkalmasak lakk \u00e9s \u00e1tl\u00e1tsz\u00f3 bevonat alkalmaz\u00e1s\u00e1hoz. A vasadal\u00e9kolt higanyl\u00e1mp\u00e1k (\"D\" l\u00e1mp\u00e1k) n\u00e9h\u00e1ny hosszabb hull\u00e1mhosszon (320-400 nm) szolg\u00e1ltatnak energi\u00e1t, hogy seg\u00edts\u00e9k az alacsony pigmenttartalm\u00fa rendszerek kem\u00e9ny\u00edt\u00e9s\u00e9t. A galliummal adal\u00e9kolt higanyl\u00e1mp\u00e1k (\"V\" izz\u00f3k) hossz\u00fa hull\u00e1mhosszon (405-440 nm) er\u0151s energiakibocs\u00e1t\u00e1ssal rendelkeznek, \u00e9s a magas pigmenttartalm\u00fa rendszerekhez a munkag\u00e9pek kem\u00e9ny\u00edt\u0151 eszk\u00f6zei. A hossz\u00fa hull\u00e1mhossz\u00fa energia \u00e1thatol a vastagabb bevonatokon, valamint a pigmenttartalm\u00fa rendszerek UV-kem\u00e9ny\u00edtett porbevonatain.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-medium wp-image-5022\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2022\/01\/1-1-650x433.jpg\" alt=\"\" width=\"650\" height=\"433\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2022\/01\/1-1-650x433.jpg 650w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2022\/01\/1-1-325x217.jpg 325w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2022\/01\/1-1-300x200.jpg 300w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2022\/01\/1-1-500x333.jpg 500w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2022\/01\/1-1-750x500.jpg 750w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2022\/01\/1-1-1000x667.jpg 1000w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2022\/01\/1-1-1500x1000.jpg 1500w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><\/p>\n<p>Az MDF kezdeti munkadarabokat a porfest\u00e9s sor\u00e1n UV-kem\u00e9ny\u00edtik.<\/p>\n<p>Az UV-h\u00f3gy\u00edthat\u00f3 porfest\u00e9kek folyamat\u00e1nak folyamata gyors. \"Ez egy 20 perces, egyl\u00e9p\u00e9ses folyamat, amely a kezdeti MDF-alkatr\u00e9szb\u0151l k\u00e9sz alkatr\u00e9szt csin\u00e1l, amely azt\u00e1n csomagolhat\u00f3 \u00e9s sz\u00e1ll\u00edthat\u00f3\" - magyar\u00e1zza Loncic.<\/p>\n<p>El\u0151sz\u00f6r a munkadarabot a gy\u00e1rt\u00f3sorra f\u00fcggesztik, \u00e9s a folyamat sor\u00e1n visszamaradt porszemcs\u00e9ket s\u0171r\u00edtett leveg\u0151 permetez\u00e9s\u00e9vel elt\u00e1vol\u00edtj\u00e1k. A fel\u00fclet csiszol\u00e1sa a porfest\u00e9s el\u0151tt \u00e1ltal\u00e1ban m\u00e1r nem sz\u00fcks\u00e9ges. Ezut\u00e1n az MDF munkadarab egy percre alacsony h\u0151m\u00e9rs\u00e9klet\u0171 el\u0151meleg\u00edtett kemenc\u00e9be ker\u00fcl. \"Ez a fest\u00e9s el\u0151tt kiszell\u0151zteti a lapot, \u00e9s az MDF-b\u0151l a nedvess\u00e9get a fel\u00fcletre juttatja, \u00edgy a lap vezet\u0151k\u00e9pess\u00e9 v\u00e1lik a porbevonat megtart\u00e1s\u00e1hoz\" - teszi hozz\u00e1 Loncic.<\/p>\n<p>Ezut\u00e1n az UV-kem\u00e9nyed\u0151 porbevonatot elektrosztatikusan, automata sz\u00f3r\u00f3pisztolyos rendszerrel viszik fel. A port ezut\u00e1n alacsony h\u0151m\u00e9rs\u00e9klet\u0171 s\u00fct\u0151ben egy perccel tov\u00e1bb olvasztj\u00e1k vagy zsel\u00e9s\u00edtik. Miut\u00e1n megolvadt, a munkadarab azonnal megszil\u00e1rdul az UV-f\u00e9ny alatt. Kevesebb mint 20 perc alatt a munkadarab teljesen megmunk\u00e1lt, \u00e9s k\u00e9szen \u00e1ll a csomagol\u00e1sra \u00e9s a megrendel\u0151nek val\u00f3 sz\u00e1ll\u00edt\u00e1sra.<\/p>\n<p>Az UV-h\u0151re kem\u00e9nyed\u0151 porfest\u00e9keket t\u00f6bb mint 20 \u00e9vvel ezel\u0151tt fejlesztett\u00e9k ki a h\u0151re kem\u00e9nyed\u0151 porfest\u00e9kek alternat\u00edv\u00e1jak\u00e9nt. A h\u0151re t\u00f6rt\u00e9n\u0151 kem\u00e9ny\u00edt\u00e9shez magas h\u0151m\u00e9rs\u00e9kletre van sz\u00fcks\u00e9g (kb. 400\u00b0F\/204\u00b0C), \u00e9s 10-30 percet vagy ann\u00e1l t\u00f6bbet vesz ig\u00e9nybe. A feldolgoz\u00e1si id\u0151 hosszabb, \u00e9s tov\u00e1bbi h\u0171t\u00e9si id\u0151re van sz\u00fcks\u00e9g a k\u00f6vetkez\u0151 l\u00e9p\u00e9sben t\u00f6rt\u00e9n\u0151 feldolgoz\u00e1s el\u0151tt.<\/p>\n<p>Mint Lonchak r\u00e1mutat, az UV-oxid\u00e1ci\u00f3 f\u0151 el\u0151nyei a h\u0151re t\u00f6rt\u00e9n\u0151 kikem\u00e9ny\u00edt\u00e9ssel szemben az id\u0151 \u00e9s a h\u0151m\u00e9rs\u00e9klet tekintet\u00e9ben jelentkeznek. Az elektrosztatikus porbevon\u00e1si folyamat az UV-kem\u00e9ny\u00edt\u00e9s\u0171 porbevonatok \u00e9s a termikusan kem\u00e9ny\u00edtett porbevonatok eset\u00e9ben pontosan ugyanaz, azonban az olvad\u00e1si\/foly\u00e1si \u00e9s a kem\u00e9ny\u00edt\u00e9si folyamatok fontos elt\u00e9r\u0151 jellemz\u0151k, amelyek funkcion\u00e1lisan megk\u00fcl\u00f6nb\u00f6ztetik a kett\u0151t.<\/p>\n<p>Az UV-kem\u00e9nyed\u00e9s folyamata azonnali. Csak egy r\u00f6vid, egyperces felmeleg\u00edt\u00e9s sz\u00fcks\u00e9ges 220-240\u00b0F (104-116\u00b0C) h\u0151m\u00e9rs\u00e9kleten a porbevonat megolvaszt\u00e1s\u00e1hoz\/egyenget\u00e9s\u00e9hez az UV-kem\u00e9nyed\u00e9s el\u0151tt. Ennek az az el\u0151nye, hogy jelent\u0151sen ler\u00f6vid\u00edti a folyamat idej\u00e9t \u00e9s cs\u00f6kkenti a teljes h\u0151m\u00e9rs\u00e9kletet, ami az MDF-gy\u00e1rt\u00e1sban nagyon fontoss\u00e1 teszi az UV-kem\u00e9ny\u00edthet\u0151 porbevon\u00e1si folyamatot. \"A t\u00falzott h\u0151 \u00e9s expoz\u00edci\u00f3s id\u0151 reped\u00e9sekhez \u00e9s egy\u00e9b hib\u00e1khoz vezethet a lemezen\" - jegyezte meg Lonczak.<\/p>\n<p>A porbevonatok bizonyos kih\u00edv\u00e1sokat jelentenek, de a DVUV elsaj\u00e1t\u00edtotta az ezek lek\u00fczd\u00e9s\u00e9hez sz\u00fcks\u00e9ges int\u00e9zked\u00e9seket \u00e9s eszk\u00f6z\u00f6ket. A p\u00e1ratartalom \u00e9s a h\u0151m\u00e9rs\u00e9klet ingadoz\u00e1sa befoly\u00e1solhatja a folyamat siker\u00e9t, de ez k\u00f6nnyen kezelhet\u0151 egy h\u0151m\u00e9rs\u00e9klet-szab\u00e1lyozott gy\u00e1rban m\u0171k\u00f6d\u0151 folyamatszab\u00e1lyoz\u00e1ssal. Egy p\u00e1r\u00e1s\u00edt\u00f3 berendez\u00e9s biztos\u00edtja, hogy az MDF-lap a porfest\u00e9s el\u0151tt a megfelel\u0151 nedvess\u00e9gtartalmat tartsa fenn.<\/p>\n<p>A DVUV param\u00e9terbe\u00e1ll\u00edt\u00e1sa \u00e9s tesztel\u00e9se az els\u0151 menetben szint\u00e9n biztos\u00edtja a stabil \u00e9s konzisztens term\u00e9kek el\u0151\u00e1ll\u00edt\u00e1s\u00e1t. A DVUV m\u0171k\u00f6d\u00e9se minden egyes l\u00e1ncszemn\u00e9l az \u00fcgyf\u00e9l \u00e1ltal a munkadarabra vonatkoz\u00f3 param\u00e9terk\u00f6vetelm\u00e9nyeknek megfelel\u0151en testre szabott. \"A vonalsebess\u00e9g, a pisztoly t\u00e1vols\u00e1ga \u00e9s a folyamat h\u0151m\u00e9rs\u00e9klete minden egyes projekt\u00fcnkn\u00e9l m\u00e1s \u00e9s m\u00e1s, \u00e9s korrig\u00e1ljuk\" - z\u00e1rja Loncic.<\/p>\n<p>A min\u0151s\u00e9get biztos\u00edt\u00f3 menet k\u00f6zbeni ellen\u0151rz\u00e9s mellett a gy\u00e1rt\u00f3csapat egyidej\u0171leg az \u00fczembe helyez\u00e9s l\u00e9p\u00e9seit is elv\u00e9gezte. A k\u00e9sz munkadarabok min\u0151s\u00e9gellen\u0151rz\u00e9se, bele\u00e9rtve egy sor roncsol\u00e1sos \u00e9s roncsol\u00e1smentes vizsg\u00e1latot:<\/p>\n<p>A munkadarab fel\u00fclet\u00e9nek vizu\u00e1lis ellen\u0151rz\u00e9se a szabv\u00e1nyos alkatr\u00e9szekkel \u00f6sszehasonl\u00edtva<\/p>\n<p>Nyomat\u00e9kvastags\u00e1gm\u00e9r\u0151 teszt (bevonatvastags\u00e1g m\u00e9r\u00e9se)<\/p>\n<p>f\u00e9nyes olvas\u00e1s<\/p>\n<p>MEK old\u00f3szerrel szembeni ellen\u00e1ll\u00f3s\u00e1gi vizsg\u00e1lat<\/p>\n<p>\"Termel\u0151csapatainknak megel\u0151z\u0151 karbantart\u00e1si, nyomonk\u00f6vethet\u0151s\u00e9gi elemz\u00e9si \u00e9s korrekci\u00f3s int\u00e9zked\u00e9si terveik is vannak, ha min\u0151s\u00e9gi vagy kivitelez\u00e9si probl\u00e9m\u00e1k mer\u00fclnek fel.\"<\/p>\n<p>A DVUV porsz\u00f3rt MDF-je sz\u00e1m\u00e1ra f\u00e9nyes j\u00f6v\u0151 \u00e1ll el\u0151tt\u00fcnk. A korm\u00e1nyok \u00e9s a szab\u00e1lyoz\u00f3 hat\u00f3s\u00e1gok korl\u00e1tozz\u00e1k vagy megsz\u00fcntetik az old\u00f3szeres foly\u00e9kony fest\u00e9kek haszn\u00e1lat\u00e1t.<\/p>\n<p>A v\u00edzb\u00e1zis\u00fa foly\u00e9kony bevonatok nehezen alkalmazhat\u00f3k az MDF-lemezeken, ez\u00e9rt az UV-h\u0151\u00e1ll\u00f3 porbevonatok ide\u00e1lis feldolgoz\u00e1si megold\u00e1st jelentenek az MDF-lemezek sz\u00e1m\u00e1ra.<\/p>\n<p>Az UV-h\u00f3gy\u00edthat\u00f3 porfest\u00e9kek old\u00f3szermentesek, nem m\u00e9rgez\u0151ek, \u00e9s nem tartalmaznak ill\u00e9kony szerves vegy\u00fcleteket (VOC) vagy k\u00e1ros l\u00e9gszennyez\u0151 anyagokat. A gy\u00e1rt\u00e1si m\u0171veletek nem ig\u00e9nyelnek k\u00fcl\u00f6n enged\u00e9lyt.<\/p>\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\/hu\/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\/hu\/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\/hu\/product\/photoinitiator-184-cas-947-19-3\/\">CHLUMINIT 184<\/a>:<\/strong> A classic free-radical benchmark for fast surface cure in many UV systems.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/hu\/product\/cas-270586-78-2\/\">CHLUMINIT TMO<\/a>:<\/strong> A valuable comparison point when lower yellowing or TPO-replacement discussions matter.<\/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>","protected":false},"excerpt":{"rendered":"<p>MDF is easy to process and has a homogeneous and homogeneous surface. Natural wood can also be powder coated, but the finish may be uneven. Problems with outgassing and pinholes<\/p>","protected":false},"author":1,"featured_media":5022,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-5021","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>Process and Advantages of UV Curing Powders - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"MDF is easy to process and has a homogeneous and homogeneous surface. Natural wood can also be powder coated, but the finish may be uneven. 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