<\/p>\n
Quick answer:<\/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>\n For UV backlight ink development, Fotoba\u015flat\u0131c\u0131 TMO<\/a> ve Photoinitiator TPO-L<\/a> are often reviewed when high LED response and low yellowing are both important.<\/p>\n UV Arka I\u015f\u0131k M\u00fcrekkebi<\/p>\n UV \u0131\u015f\u0131k yayan m\u00fcrekkep, yayg\u0131n olarak kullan\u0131lan \u015feffaf m\u00fcrekkebe \u0131\u015f\u0131ldayan malzeme eklenerek haz\u0131rlanan bir t\u00fcr \u00f6zel fonksiyonel m\u00fcrekkeptir. Genel l\u00fcminesan m\u00fcrekkep, l\u00fcminesan malzemelerle katk\u0131lanm\u0131\u015f \u0131s\u0131yla k\u00fcrlenen m\u00fcrekkepten yap\u0131l\u0131r ve l\u00fcminesan \u00fcr\u00fcnler, l\u00fcminesan malzemelerin \u00f6zel \u00f6zellikleriyle belirlenen UV m\u00fcrekkepte kullan\u0131lmas\u0131 zor olan \u0131s\u0131yla k\u00fcrlenerek haz\u0131rlan\u0131r. Uzun s\u00fcre parlayan \u0131\u015f\u0131k yayan malzemeler olan l\u00fcminesan malzeme, 10 ~ 60\u03bcm inorganik toz malzemelerin partik\u00fcl boyutudur, \u00f6zel ko\u015fullarda ve hatta daha b\u00fcy\u00fck partik\u00fcl boyutunda, bu toz malzeme belirli bir g\u00f6vde rengine ve opakl\u0131\u011fa sahiptir, pratikte, daha iyi bir \u0131\u015f\u0131k yayan etkiyi yans\u0131tmak i\u00e7in belirli bir kal\u0131nl\u0131kta bask\u0131 yapman\u0131z gerekir, bu sorunlar UV ile k\u00fcrlenen l\u00fcminesan m\u00fcrekkeplerin kullan\u0131m\u0131na baz\u0131 zorluklar getirir.<\/p>\n M\u00fcrekkebin i\u00e7ine \u0131\u015f\u0131ldayan toz, \u0131\u015f\u0131ldayan m\u00fcrekkepleri haz\u0131rlamak i\u00e7in yayg\u0131n bir y\u00f6ntemdir, ge\u00e7mi\u015fte \u0131s\u0131yla sertle\u015fen m\u00fcrekkep ve \u0131\u015f\u0131ldayan toz, \u0131\u015f\u0131ldayan m\u00fcrekkeplerin kar\u0131\u015f\u0131k haz\u0131rlanmas\u0131d\u0131r. UV teknolojisinin geli\u015fmesiyle birlikte, UV \u0131\u015f\u0131k yayan m\u00fcrekkep haz\u0131rlamak i\u00e7in \u0131\u015f\u0131ldayan toz ve UV m\u00fcrekkep kombinasyonu, \u00f6zellikle \u0131s\u0131 ile sertle\u015fen \u0131\u015f\u0131k yayan m\u00fcrekkep yerine UV \u0131\u015f\u0131k yayan m\u00fcrekkeple \u0131\u015f\u0131k yayan i\u015faretlerin \u00fcretiminde, bask\u0131 \u00fcreticilerinin \u00e7o\u011fu taraf\u0131ndan kademeli olarak benimsenmi\u015ftir. UV \u0131\u015f\u0131k yayan m\u00fcrekkebin serigrafi bask\u0131 teknolojisi ile bas\u0131lmas\u0131, \u0131\u015f\u0131k yayan i\u015faretlerin haz\u0131rlanmas\u0131nda yayg\u0131n bir y\u00f6ntemdir.<\/p>\n \u2460 I\u015f\u0131ldayan Toz Se\u00e7imi: UV l\u00fcminesan m\u00fcrekkep, serigrafi bask\u0131da l\u00fcminesan toz se\u00e7imini dikkate almal\u0131d\u0131r, l\u00fcminesan tozun temel gereksinimi y\u00fcksek parlakl\u0131k ve orta partik\u00fcl boyutudur. B\u00fcy\u00fck partik\u00fcl boyutu ekrandan ka\u00e7\u0131r\u0131lamaz, k\u00fc\u00e7\u00fck partik\u00fcl boyutu bask\u0131 kal\u0131nl\u0131\u011f\u0131 yeterli de\u011fildir, kal\u0131nl\u0131k gereksinimlerini elde etmek i\u00e7in bask\u0131 say\u0131s\u0131n\u0131 art\u0131rman\u0131z gerekir, i\u015f\u00e7ilik ve zaman al\u0131c\u0131d\u0131r, genellikle 50 ~ 80\u03bcm l\u00fcminesan toz kullan\u0131n daha uygundur. Nadir toprak l\u00fcminesan tozu a\u00e7\u0131k sar\u0131-ye\u015fildir, bu nedenle tabela alt tabakas\u0131n\u0131 mavi veya ye\u015fil yapmay\u0131 se\u00e7in.<\/p>\n \u2461 \u015fablon \u00fcretimi. I\u015f\u0131k yayan tabelalar genellikle daha kal\u0131n bas\u0131lm\u0131\u015f \u0131\u015f\u0131k yayan katman gerektirir, bu nedenle normal 80 g\u00f6zl\u00fc polyester monofilament ekran, b\u00f6ylece \u0131\u015f\u0131k yayan toz ekrandan ge\u00e7ebilir, \u0131\u015f\u0131k yayan katman yazd\u0131r\u0131l\u0131rken de daha kal\u0131nd\u0131r. Plakada, baz\u0131 yer ad\u0131 tabelalar\u0131 gibi genel tabela \u00fcr\u00fcnlerinde dikkate al\u0131nmal\u0131d\u0131r, genellikle ayn\u0131 desen arka arkaya bir\u00e7ok kez bas\u0131lmayacakt\u0131r, bu durumda d\u00fc\u015f\u00fck dereceli ya\u011fa dayan\u0131kl\u0131 bir fotopolimer se\u00e7ebilirsiniz, maliyetlerden tasarruf edebilirsiniz.<\/p>\n \u2462 \u00f6nceden kaplanm\u0131\u015f astar. Beyaz bir alt tabaka basma ihtiyac\u0131ndan \u00f6nce \u0131\u015f\u0131k yayan tabakan\u0131n bas\u0131lmas\u0131nda, \u0131\u015f\u0131k yayan tabaka beyaz alt tabaka \u00fczerine bas\u0131l\u0131r. Alt tabaka katman\u0131n\u0131n bas\u0131lmas\u0131, \u0131\u015f\u0131ldayan m\u00fcrekkebin bas\u0131lmas\u0131 i\u00e7in gerekli ad\u0131mlardan biridir, alt tabaka y\u00fczeyinin \u00f6nceden kaplanmas\u0131, \u0131\u015f\u0131ldayan m\u00fcrekkebin \u0131\u015f\u0131ldama performans\u0131n\u0131n iyile\u015ftirilmesine yard\u0131mc\u0131 olacakt\u0131r. M\u00fcrekkebin \u0131\u015f\u0131k performans\u0131 \u00fczerinde alt tabaka katman\u0131n\u0131n farkl\u0131 pigmentlerinin kullan\u0131m\u0131 ayn\u0131 de\u011fildir, titanyum dioksit beyaz alt tabaka katman\u0131 eklemek, \u0131\u015f\u0131ldayan m\u00fcrekkeplerin \u0131\u015f\u0131k performans\u0131n\u0131 iyile\u015ftirmeye en elveri\u015flidir, bunun nedeni beyaz alt tabaka katman\u0131n\u0131n m\u00fcrekkep katman\u0131ndan ge\u00e7ebilmesidir. gelen \u0131\u015f\u0131\u011f\u0131n yan\u0131 s\u0131ra yay\u0131lan floresan daha tam olarak yans\u0131t\u0131l\u0131r, \u0131\u015f\u0131ldayan m\u00fcrekkeplerin rol\u00fcn\u00fc en \u00fcst d\u00fczeye \u00e7\u0131kar\u0131r.<\/p>\n UV \u0131\u015f\u0131k yayan m\u00fcrekkebin beyaz alt tabakaya iyi yap\u0131\u015fmas\u0131 gerekti\u011fi, aksi takdirde \u0131\u015f\u0131k yayan m\u00fcrekkep katman\u0131n\u0131n k\u00fcrlendikten sonra kolayca \u00e7\u0131kaca\u011f\u0131 ve UV m\u00fcrekkeplerin \u00e7o\u011funun PVC m\u00fcrekkep katman\u0131na iyi yap\u0131\u015fmas\u0131 nedeniyle genellikle beyaz PVC m\u00fcrekkebin kullan\u0131ld\u0131\u011f\u0131 ve b\u00f6ylece \u0131\u015f\u0131k yayan katman\u0131n tabeladan \u00e7\u0131kmas\u0131 olgusunun \u00f6nlendi\u011fi unutulmamal\u0131d\u0131r.<\/p>\n \u2463 Birka\u00e7 kez bask\u0131 ve k\u00fcrleme yaparken ara katman yap\u0131\u015fmas\u0131na dikkat edin. UV \u0131\u015f\u0131k yayan m\u00fcrekkep kullan\u0131m\u0131 \u00e7ok \u00f6nemli bir konuya dikkat etmelidir, i\u015faretlerin \u00fcretimi genellikle belirli bir kal\u0131nl\u0131\u011fa ula\u015fmak i\u00e7in \u0131\u015f\u0131k yayan katmana ihtiya\u00e7 duyar, bu da kal\u0131nl\u0131k gereksinimlerini elde etmek i\u00e7in bir dizi bask\u0131 gerektirir. UV m\u00fcrekkebi k\u00fcrlendikten hemen sonra bir kez bas\u0131ld\u0131\u011f\u0131ndan, k\u00fcrlenmi\u015f y\u00fczey p\u00fcr\u00fczs\u00fczd\u00fcr, bir sonraki bask\u0131da bir \u00f6nceki katman temelinde ger\u00e7ekle\u015ftirilir, bu kez her katman aras\u0131ndaki UV m\u00fcrekkebi ihtiyac\u0131 iyi bir yap\u0131\u015fmaya sahiptir, delaminasyon fenomeni g\u00f6r\u00fcnemez. Bu nedenle, UV m\u00fcrekkep se\u00e7iminde katmanlar aras\u0131 yap\u0131\u015fma sorununa \u00f6zellikle dikkat edilmelidir.<\/p>\n Uzun s\u00fcre parlayan \u0131\u015f\u0131k yayan malzemeler ve bask\u0131 ile birlikte kullan\u0131lan UV m\u00fcrekkeplerin a\u015fa\u011f\u0131daki hususlara dikkat etmesi gerekir.<\/p>\n \u2460 uzun parlama sonras\u0131 \u0131\u015f\u0131k yayan malzeme bir t\u00fcr inorganik toz malzemedir, \u0131\u015f\u0131k yayan malzeme yo\u011funlu\u011funun \u00e7\u00f6kelmesi kolayd\u0131r, bu nedenle kullanmadan \u00f6nce kar\u0131\u015ft\u0131rman\u0131z gerekir, ayn\u0131 zamanda \u0131\u015f\u0131k yayan malzemenin pas, a\u011f\u0131r metaller vb. ile reaksiyona girmesi kolayd\u0131r, bu nedenle da\u011f\u0131tma ve \u00f6\u011f\u00fctme i\u015fleminde metal \u00e7ubuklar\u0131n kullan\u0131lmas\u0131 uygun de\u011fildir ve metal kaplarda saklanmas\u0131 uygun de\u011fildir, aksi takdirde malzemenin kullan\u0131m\u0131n\u0131n etkisini etkileyerek malzemenin siyahla\u015fmas\u0131na neden olur. Kap se\u00e7iminde cam, seramik, emaye astarl\u0131, plastik kaplar uygundur.<\/p>\n \u2461 L\u00fcminesan m\u00fcrekkebi bir film haline getiren \u0131\u015f\u0131k yayan \u0131\u015f\u0131k emici i\u015flev, \u0131\u015f\u0131k yayan malzemelerin par\u00e7ac\u0131klar\u0131 taraf\u0131ndan ger\u00e7ekle\u015ftirilir. Re\u00e7ine i\u00e7inde birbirine ba\u011flanan \u0131\u015f\u0131k yayan malzemelerden ge\u00e7en \u0131\u015f\u0131\u011f\u0131n gereksinimleri nedeniyle iyi \u0131\u015f\u0131k ge\u00e7irgenli\u011fine sahip olmal\u0131, gizleme g\u00fcc\u00fc olmamal\u0131d\u0131r, bu nedenle re\u00e7ine, vernik se\u00e7imi renksiz veya a\u00e7\u0131k renkli \u015feffafl\u0131k uygun olmal\u0131d\u0131r.<\/p>\n \u2462 L\u00fcminesan malzeme i\u00e7eri\u011fi ne kadar y\u00fcksekse, parlakl\u0131k o kadar parlak olur, ancak l\u00fcminesan malzemenin kaplanm\u0131\u015f \u00fcr\u00fcnlere uygun \u015fekilde yap\u0131\u015fmas\u0131n\u0131 sa\u011flamak i\u00e7in re\u00e7ine oran\u0131 en az 10%'den az olmamal\u0131d\u0131r. Tabii ki, re\u00e7ine oran\u0131 ne kadar y\u00fcksek olursa, \u0131\u015f\u0131ldayan kaplaman\u0131n p\u00fcr\u00fczs\u00fczl\u00fc\u011f\u00fc ve biti\u015fi de o kadar y\u00fcksek olur. Bu nedenle, \u0131\u015f\u0131ldayan malzemenin dozaj\u0131 genellikle toplam k\u00fctlenin 20%-60%'si veya hacmin 10%-35%'sidir veya \u0131\u015f\u0131ldayan malzemenin dozaj\u0131 \u0131\u015f\u0131ldayan parlakl\u0131k gereksinimine g\u00f6re belirlenir.<\/p>\n \u2463 UV L\u00fcminesan M\u00fcrekkep serigrafi bask\u0131da l\u00fcminesan malzeme se\u00e7imini, l\u00fcminesan malzemeleri, y\u00fcksek parlakl\u0131\u011f\u0131n temel gereksinimlerini, par\u00e7ac\u0131k boyutunu orta d\u00fczeyde dikkate almak i\u00e7in. Partik\u00fcl boyutu ekrandan s\u0131zamaz, k\u00fc\u00e7\u00fck bask\u0131 kal\u0131nl\u0131\u011f\u0131n\u0131n partik\u00fcl boyutu yeterli de\u011fildir, kal\u0131nl\u0131k gereksinimlerini elde etmek i\u00e7in bask\u0131 say\u0131s\u0131n\u0131 art\u0131rman\u0131z gerekir, zaman kayb\u0131, 20 ~ 80\u03bcm l\u00fcminesan toz kullan\u0131m\u0131 daha uygundur. L\u00fcminesan malzemeler daha renklidir, i\u015faret \u00fcr\u00fcnlerinin \u00fcretimi genellikle a\u00e7\u0131k sar\u0131-ye\u015fil l\u00fcminesan malzemeleri se\u00e7er.<\/p>\n \u2464 \u00fcretim s\u00fcreci, \u0131\u015f\u0131k yayan malzemeler \u00f6\u011f\u00fct\u00fclemez, \u00fc\u00e7 silindirli de\u011firmen kullan\u0131lamaz, \u0131\u015f\u0131k yayan m\u00fcrekkebin haz\u0131rlanmas\u0131, sadece y\u00fcksek h\u0131zl\u0131 da\u011f\u0131t\u0131c\u0131 veya kar\u0131\u015ft\u0131r\u0131c\u0131 kullanabilir. Spesifik y\u00f6ntem, re\u00e7ine veya verni\u011fi kaba koymak, katk\u0131 maddeleri eklemek, kar\u0131\u015ft\u0131r\u0131c\u0131y\u0131 a\u00e7mak, batma \u00f6nleyici madde eklemek, \u0131\u015f\u0131k yayan malzemeleri yava\u015f kar\u0131\u015ft\u0131rma durumunda s\u0131rayla eklemektir. I\u015f\u0131kl\u0131 malzemeyi ekledikten sonra, \u0131\u015f\u0131kl\u0131 malzeme malzeme i\u00e7inde homojen bir \u015fekilde da\u011f\u0131lana kadar h\u0131z\u0131 art\u0131r\u0131n ve ard\u0131ndan \u00fcr\u00fcn\u00fc elde etmek i\u00e7in filtreleyin.<\/p>\n \u2465 A\u011f\u0131r metal bile\u015fikleri katk\u0131 maddesi olarak kullan\u0131lmamal\u0131d\u0131r.<\/p>\n A\u011f boyutu se\u00e7imine dikkat edin. Daha b\u00fcy\u00fck par\u00e7ac\u0131k boyutu nedeniyle genel \u0131\u015f\u0131k yayan malzemeler, daha k\u00fc\u00e7\u00fck bir g\u00f6zenekli ekrana ihtiya\u00e7 duyar, genellikle 100 g\u00f6zenekli ekran bask\u0131s\u0131 kullanmak daha iyidir. Bask\u0131dan sonra \u00fcr\u00fcn\u00fcn k\u00fcrlenme derecesi de \u00fcr\u00fcn\u00fcn nihai kalitesi \u00fczerinde bir etkiye sahiptir, k\u00fcrlenmenin a\u015fa\u011f\u0131daki d\u00f6rt yolla tamamlan\u0131p tamamlanmad\u0131\u011f\u0131n\u0131 test edin. \u0130lk olarak, test i\u00e7in kalem sertlik \u00f6l\u00e7er, genellikle 3 ~ 4H, tamamen k\u00fcrlenmi\u015f m\u00fcrekkebe sahip oldu\u011fu d\u00fc\u015f\u00fcn\u00fclebilir. \u0130kincisi, \u00e7\u00f6z\u00fcc\u00fc damlatma y\u00f6ntemini test etmek, ayn\u0131 zamanda \u00e7\u00f6z\u00fcc\u00fc direncini test etmek i\u00e7in, propiyonik asit 20 dakika sonra bask\u0131 y\u00fczeyine d\u00fc\u015fer, \u00f6rne\u011fin tamamen k\u00fcrlendi\u011fini kan\u0131tlamak i\u00e7in hi\u00e7bir de\u011fi\u015fiklik olmaz. \u00dc\u00e7\u00fcnc\u00fcs\u00fc, s\u0131k\u0131\u015ft\u0131rma y\u00f6ntemi testi, yani bask\u0131n\u0131n y\u00fczeyine yerle\u015ftirilen pamuk lifi, p\u00fcr\u00fczs\u00fcz bir alt 500g a\u011f\u0131rl\u0131kla pamuk lifinin y\u00fczeyine 2 ~ 3 dakika bast\u0131r\u0131l\u0131r ve ard\u0131ndan pamuk lifi yap\u0131\u015fmazsa a\u011f\u0131rl\u0131klar\u0131 \u00e7\u0131kar\u0131n. tamamen k\u00fcrlendi\u011fini kan\u0131tlamak i\u00e7in bask\u0131n\u0131n y\u00fczeyi. D\u00f6rd\u00fcnc\u00fc olarak, \u0131zgara test y\u00f6ntemi, bask\u0131 y\u00fczeyi \u00e7apraz\u0131nda \u0131zgara kuvvetinin kullan\u0131lmas\u0131 ve ard\u0131ndan yap\u0131\u015fkan m\u00fcrekkep yoksa, k\u00fcrlemenin tamamland\u0131\u011f\u0131n\u0131 ve k\u00fcrlemeden sonra m\u00fcrekkep katman\u0131n\u0131n yap\u0131\u015fmas\u0131n\u0131n nispeten iyi oldu\u011funu g\u00f6steren \u00e7apraz\u0131n y\u00fczeyine yap\u0131\u015fmak i\u00e7in band\u0131 kullan\u0131n.<\/p>\n <\/p>\n <\/p>\n 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 Why are blended photoinitiator packages so common?<\/strong> Should incomplete cure always be solved by adding more initiator?<\/strong> <\/p>","protected":false},"excerpt":{"rendered":" UV Backlight Ink UV light-emitting ink is a kind of special functional ink prepared by adding luminescent material in transparent ink, which has been widely used. General luminescent ink is<\/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-7844","post","type-post","status-publish","format-standard","hentry","category-photoinitiator"],"yoast_head":"\nA practical selection route for photoinitiator-related projects<\/h2>\n
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Recommended product references<\/h3>\n
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FAQ for buyers and formulators<\/h3>\n
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
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