{"id":5447,"date":"2022-08-11T13:01:47","date_gmt":"2022-08-11T13:01:47","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=5447"},"modified":"2026-08-25T08:50:56","modified_gmt":"2026-08-25T08:50:56","slug":"the-complete-guide-to-uv-curing-ink-in-use-in-the-problem","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/hu\/the-complete-guide-to-uv-curing-ink-in-use-in-the-problem\/","title":{"rendered":"UV Ink Curing Problems: Causes, Measurements & Fixes"},"content":{"rendered":"

Gyors v\u00e1lasz:<\/strong> UV ink curing problems should be diagnosed from measured irradiance and dose, film build, pigment absorption, substrate condition and intercoat requirements. Adding more photoinitiator is not a substitute for identifying the limiting stage.<\/p>\n

Build a focused UV-ink screening set<\/h2>\n

Use lamp spectrum, film thickness, pigment loading and color target to choose a small photoinitiator screen. The CHLUMINIT\u00ae 819 photoinitiator<\/a> page is a relevant reference for an acylphosphine-oxide route; CHLUMINIT\u00ae 1173<\/a> \u00e9s CHLUMINIT\u00ae ITX<\/a> represent different screening routes. Do not rank them without the current TDS, lamp emission and real ink drawdowns.<\/p>\n

I. Mi t\u00f6rt\u00e9nik, ha a tinta t\u00falkem\u00e9nyedik?<\/h2>\n

Van egy elm\u00e9let, amely szerint ha a tinta fel\u00fclet\u00e9t t\u00fal sok UV-f\u00e9ny \u00e9ri, akkor egyre kem\u00e9nyebb\u00e9 v\u00e1lik. \u00c9s amikor erre a megkem\u00e9nyedett tintafilmre egy m\u00e1sik tint\u00e1t nyomtatunk, \u00e9s m\u00e1sodszor is megsz\u00e1r\u00edtjuk, a fels\u0151 \u00e9s az als\u00f3 tinta k\u00f6z\u00f6tti tapad\u00e1s rossz lesz.<\/p>\n

A m\u00e1sik elm\u00e9let szerint a t\u00falzott kem\u00e9nyed\u00e9s a tinta fel\u00fclet\u00e9nek fotooxid\u00e1ci\u00f3j\u00e1t okozza. A fotooxid\u00e1ci\u00f3 a fest\u00e9kfilm fel\u00fclet\u00e9n l\u00e9v\u0151 k\u00e9miai k\u00f6t\u00e9sek megbont\u00e1s\u00e1val t\u00f6rt\u00e9nik, \u00e9s ha a fest\u00e9kfilm fel\u00fclet\u00e9n l\u00e9v\u0151 molekul\u00e1ris k\u00f6t\u00e9sek lebomlanak vagy s\u00e9r\u00fclnek, akkor a fest\u00e9kfilm \u00e9s egy m\u00e1sik fest\u00e9kr\u00e9teg k\u00f6z\u00f6tti tapad\u00e1s cs\u00f6kken. A t\u00falkem\u00e9ny\u00edtett tintafilm nemcsak rossz rugalmass\u00e1g\u00fa, hanem hajlamos a fel\u00fcleti t\u00f6r\u00e9kenys\u00e9gre is.<\/p>\n

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2, mi\u00e9rt \u00e1ltal\u00e1ban UV tinta gy\u00f3gyul\u00e1si sebess\u00e9g, mint m\u00e1s tint\u00e1k?<\/h2>\n

Az UV tint\u00e1t \u00e1ltal\u00e1ban az egyes hordoz\u00f3k jellemz\u0151i \u00e9s az egyes alkalmaz\u00e1sok speci\u00e1lis k\u00f6vetelm\u00e9nyei szerint \u00e1ll\u00edtj\u00e1k \u00f6ssze. K\u00e9miai szempontb\u00f3l min\u00e9l gyorsabb a tinta kikem\u00e9nyed\u00e9si sebess\u00e9ge, ann\u00e1l kev\u00e9sb\u00e9 rugalmas a kikem\u00e9nyed\u00e9s ut\u00e1n. Mint elk\u00e9pzelhet\u0151, amikor a tinta megszil\u00e1rdul, a tinta molekul\u00e1i keresztk\u00f6t\u0151dnek, ha ezek a molekul\u00e1k nagyon sok molekulal\u00e1ncot alkotnak \u00e9s sok el\u00e1gaz\u00e1ssal rendelkeznek, akkor a tinta nagyon gyorsan megszil\u00e1rdul, de nem lesz nagyon rugalmas; ha ezek a molekul\u00e1k kevesebb molekulal\u00e1ncot alkotnak \u00e9s nincsenek el\u00e1gaz\u00e1sok, akkor ez a tinta nagyon lassan megszil\u00e1rdulhat, de biztosan nagyon rugalmas lesz. A legt\u00f6bb tint\u00e1t \u00fagy tervezik, hogy megfeleljen az alkalmaz\u00e1s ig\u00e9nyeinek. P\u00e9ld\u00e1ul a membr\u00e1nkapcsol\u00f3k gy\u00e1rt\u00e1s\u00e1ra tervezett tint\u00e1k eset\u00e9ben a kikem\u00e9ny\u00edtett tintafilmnek kompatibilisnek kell lennie a lamin\u00e1l\u00f3 ragaszt\u00f3kkal, \u00e9s el\u00e9g rugalmasnak kell lennie a k\u00e9s\u0151bbi elj\u00e1r\u00e1sokhoz, p\u00e9ld\u00e1ul a stancol\u00e1shoz \u00e9s a dombornyom\u00e1shoz. \u00c9rdemes megjegyezni, hogy a tint\u00e1ban haszn\u00e1lt k\u00e9miai anyagok nem l\u00e9phetnek reakci\u00f3ba a hordoz\u00f3 fel\u00fclet\u00e9vel, k\u00fcl\u00f6nben olyan jelens\u00e9geket okozhatnak, mint a reped\u00e9s \u00e9s a t\u00f6r\u00e9s vagy a lev\u00e1l\u00e1s. Az ilyen tint\u00e1k kikem\u00e9nyed\u00e9si sebess\u00e9ge \u00e1ltal\u00e1ban lass\u00fa. Ezzel szemben a k\u00e1rty\u00e1k vagy kem\u00e9ny m\u0171anyag kijelz\u0151t\u00e1bl\u00e1k gy\u00e1rt\u00e1s\u00e1ra tervezett tint\u00e1knak nem kell ilyen nagyfok\u00fa rugalmass\u00e1ggal rendelkezni\u00fck, \u00e9s az alkalmaz\u00e1s ig\u00e9nyeit\u0151l f\u00fcgg\u0151en gyorsabban sz\u00e1radnak. Arr\u00f3l, hogy a tinta gyorsan vagy lassan sz\u00e1rad-e, a *v\u00e9gfelhaszn\u00e1l\u00e1st szem el\u0151tt tartva kell kiindulnunk. Egy m\u00e1sik k\u00e9rd\u00e9s, amit \u00e9rdemes megeml\u00edteni, a kikem\u00e9ny\u00edt\u0151 berendez\u00e9s. Egyes tint\u00e1k eredetileg nagyon gyorsan sz\u00e1radnak, de mivel a sz\u00e1r\u00edt\u00f3berendez\u00e9s nem m\u0171k\u00f6dik hat\u00e9konyan, ez a tinta sz\u00e1rad\u00e1si sebess\u00e9g\u00e9nek lassul\u00e1s\u00e1hoz, vagy hi\u00e1nyos sz\u00e1rad\u00e1s\u00e1hoz is vezethet.<\/p>\n

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3\u3001Mi\u00e9rt s\u00e1rgul a polikarbon\u00e1t (PC) f\u00f3lia UV tinta haszn\u00e1lata eset\u00e9n? Hogyan lehet elker\u00fclni vagy megsz\u00fcntetni a polikarbon\u00e1t fel\u00fcleti ellen\u00e1ll\u00e1s s\u00e1rgul\u00e1s\u00e1t?<\/h2>\n

A polikarbon\u00e1t \u00e9rz\u00e9kenyebb a 320 nm-n\u00e9l kisebb hull\u00e1mhossz\u00fa UV-f\u00e9nyre. A f\u00f3lia fel\u00fclet\u00e9nek s\u00e1rgul\u00e1s\u00e1t a molekulal\u00e1ncok fotooxid\u00e1ci\u00f3 okozta t\u00f6r\u00e9se okozza. A m\u0171anyag molekul\u00e1ris k\u00f6t\u00e9sei elnyelik az UV energi\u00e1t \u00e9s szabad gy\u00f6k\u00f6ket termelnek, amelyek reakci\u00f3ba l\u00e9pnek a leveg\u0151 oxig\u00e9nj\u00e9vel \u00e9s megv\u00e1ltoztatj\u00e1k a m\u0171anyag megjelen\u00e9s\u00e9t \u00e9s fizikai tulajdons\u00e1gait.<\/p>\n

Ha polikarbon\u00e1t f\u00f3li\u00e1ra nyomtatunk UV-fest\u00e9kkel, akkor a fel\u00fclet s\u00e1rgul\u00e1sa cs\u00f6kkenthet\u0151, de nem sz\u00fcntethet\u0151 meg teljesen. A s\u00e1rgul\u00e1s megjelen\u00e9se hat\u00e9konyan cs\u00f6kkenthet\u0151 a hozz\u00e1adott vasat vagy galliumot tartalmaz\u00f3 vulkaniz\u00e1l\u00f3 izz\u00f3k haszn\u00e1lat\u00e1val, amelyek cs\u00f6kkentik a r\u00f6vid hull\u00e1mhossz\u00fa UV-f\u00e9ny kibocs\u00e1t\u00e1s\u00e1t a polikarbon\u00e1t k\u00e1rosod\u00e1s\u00e1nak elker\u00fcl\u00e9se \u00e9rdek\u00e9ben. Ezenk\u00edv\u00fcl az egyes fest\u00e9ksz\u00ednek megfelel\u0151 kikem\u00e9ny\u00edt\u00e9se is seg\u00edt cs\u00f6kkenteni a hordoz\u00f3 UV-f\u00e9nyben val\u00f3 expoz\u00edci\u00f3s idej\u00e9t, \u00e9s cs\u00f6kkenti a polikarbon\u00e1t f\u00f3lia elsz\u00ednez\u0151d\u00e9s\u00e9nek lehet\u0151s\u00e9g\u00e9t.<\/p>\n

4. Mi az \u00f6sszef\u00fcgg\u00e9s az UV-h\u0151kezel\u0151 l\u00e1mpa be\u00e1ll\u00edt\u00e1si param\u00e9tere (watt\/ inch) \u00e9s a radiom\u00e9teren l\u00e1that\u00f3 \u00e9rt\u00e9k (watt\/cm2 vagy milliwatt\/cm2) k\u00f6z\u00f6tt?<\/h2>\n

W\/ inch a p\u00e1cl\u00e1mpa teljes\u00edtm\u00e9ny\u00e9nek m\u00e9rt\u00e9kegys\u00e9ge, amely Ohm t\u00f6rv\u00e9ny\u00e9n alapul volt (fesz\u00fclts\u00e9g) x amper (\u00e1ram) = watt (teljes\u00edtm\u00e9ny); a watt\/cm2 vagy milliwatt\/cm2 pedig a megvil\u00e1g\u00edt\u00e1si cs\u00facs\u00e9rt\u00e9ket (UV-energia) jelzi egys\u00e9gnyi ter\u00fcletre vet\u00edtve, amikor a radiom\u00e9ter a p\u00e1cl\u00e1mpa alatt halad \u00e1t.<\/p>\n

A cs\u00facsf\u00e9nyer\u0151ss\u00e9g els\u0151sorban a p\u00e1col\u00f3l\u00e1mpa teljes\u00edtm\u00e9ny\u00e9t\u0151l f\u00fcgg. A cs\u00facsf\u00e9nyer\u0151ss\u00e9g m\u00e9r\u00e9s\u00e9re els\u0151sorban az\u00e9rt haszn\u00e1ljuk a wattot, mert az a p\u00e1col\u00f3l\u00e1mpa \u00e1ltal felvett elektromos teljes\u00edtm\u00e9nyt jelenti. A p\u00e1col\u00f3egys\u00e9g \u00e1ltal felvett teljes\u00edtm\u00e9nyen k\u00edv\u00fcl a cs\u00facsf\u00e9nyer\u0151t befoly\u00e1sol\u00f3 egy\u00e9b t\u00e9nyez\u0151k k\u00f6z\u00e9 tartozik a p\u00e1col\u00f3l\u00e1mpa kora, a reflektor \u00e1llapota \u00e9s geometri\u00e1ja, valamint a p\u00e1col\u00f3l\u00e1mpa \u00e9s a p\u00e1col\u00f3fel\u00fclet k\u00f6z\u00f6tti t\u00e1vols\u00e1g.<\/p>\n

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5\u3001Mi a k\u00fcl\u00f6nbs\u00e9g az mJ \u00e9s a mW k\u00f6z\u00f6tt?<\/h2>\n

Az egy adott fel\u00fcletre egy adott id\u0151szakban besug\u00e1rzott teljes energi\u00e1t \u00e1ltal\u00e1ban J\/cm2 vagy mJ\/cm2 -ben fejezik ki. Ez f\u0151k\u00e9nt a haszn\u00e1lat kor\u00e1val, a p\u00e1col\u00f3 l\u00e1mpa teljes\u00edtm\u00e9ny\u00e9vel, sz\u00e1m\u00e1val, a sz\u00e1ll\u00edt\u00f3szalag sebess\u00e9g\u00e9vel, a p\u00e1col\u00f3 rendszerben l\u00e9v\u0151 reflektor \u00e1llapot\u00e1val, alakj\u00e1val \u00e9s \u00e1llapot\u00e1val f\u00fcgg \u00f6ssze.
\n\u00c9s besug\u00e1rz\u00e1sa egy adott fel\u00fcletre az UV energia akt\u00edv sug\u00e1rz\u00e1si energia teljes\u00edtm\u00e9ny\u00e9t f\u0151leg watt \/ cm2 vagy milliwatt \/ cm2-ben fejezik ki. Min\u00e9l nagyobb a szubsztr\u00e1tum fel\u00fclet\u00e9re besug\u00e1rzott UV-energia, ann\u00e1l t\u00f6bb energia hatol be a tintafilmbe. Ak\u00e1r milliwattr\u00f3l, ak\u00e1r millijoule-r\u00f3l van sz\u00f3, csak akkor m\u00e9rhet\u0151, ha a sug\u00e1rz\u00e1sm\u00e9r\u0151 hull\u00e1mhossz-\u00e9rz\u00e9kenys\u00e9ge el\u00e9r bizonyos k\u00f6vetelm\u00e9nyeket.<\/p>\n

6\u3001Hogyan biztos\u00edthatjuk az UV-fest\u00e9kek megfelel\u0151 sz\u00e1rad\u00e1s\u00e1t?<\/h2>\n

Nagyon fontos a fest\u00e9kfilm kikem\u00e9nyed\u00e9se a kikem\u00e9ny\u00edt\u0151 egys\u00e9gen val\u00f3 els\u0151 \u00e1thalad\u00e1skor. A megfelel\u0151 kikem\u00e9ny\u00edt\u00e9s minimaliz\u00e1lja a hordoz\u00f3 torzul\u00e1s\u00e1t, a t\u00falkem\u00e9nyed\u00e9st, az \u00fajb\u00f3li nedvesed\u00e9st \u00e9s az alulkem\u00e9nyed\u00e9st, \u00e9s optimaliz\u00e1lja a tapad\u00e1st fest\u00e9k \u00e9s fest\u00e9k, illetve bevonat \u00e9s bevonat k\u00f6z\u00f6tt.<\/p>\n

A szitanyomd\u00e1knak a gy\u00e1rt\u00e1s megkezd\u00e9se el\u0151tt meg kell hat\u00e1rozniuk a gy\u00e1rt\u00e1si param\u00e9tereket. Az UV-fest\u00e9kek kikem\u00e9nyed\u00e9si hat\u00e9konys\u00e1g\u00e1nak tesztel\u00e9s\u00e9hez el\u0151sz\u00f6r a *legalacsonyabb* sebess\u00e9ggel kezdhetj\u00fck el a nyomtat\u00e1st, amelyet az alapanyag megenged, \u00e9s az els\u0151k\u00e9nt nyomtatott minta\u00edv kikem\u00e9nyedhet. Ezt k\u00f6vet\u0151en a vulkaniz\u00e1l\u00f3 l\u00e1mpa teljes\u00edtm\u00e9ny\u00e9t a fest\u00e9kgy\u00e1rt\u00f3 \u00e1ltal megadott \u00e9rt\u00e9kre \u00e1ll\u00edtjuk. A nehezen kem\u00e9nyed\u0151 sz\u00ednek, p\u00e9ld\u00e1ul a fekete \u00e9s a feh\u00e9r eset\u00e9ben a kem\u00e9ny\u00edt\u0151 l\u00e1mpa param\u00e9tereit is felfel\u00e9 \u00e1ll\u00edthatjuk. Miut\u00e1n a lap leh\u0171lt, a k\u00e9tir\u00e1ny\u00fa \u00e1rny\u00e9kvonal-m\u00f3dszerrel meghat\u00e1rozhatjuk a tintafilm tapad\u00e1s\u00e1t. Ha a minta\u00edv sikeresen \u00e1t tud menni a teszten, akkor a pap\u00edr\u00e1tviteli sebess\u00e9get 10 ft\/perc sebess\u00e9ggel n\u00f6velhetj\u00fck, majd a nyomtat\u00e1st \u00e9s a tesztel\u00e9st addig folytathatjuk, am\u00edg a fest\u00e9kfilm el nem vesz\u00edti tapad\u00e1s\u00e1t a hordoz\u00f3hoz, \u00e9s az \u00e1tviteli szalag sebess\u00e9g\u00e9t \u00e9s az ilyenkor \u00e9rv\u00e9nyes vulkaniz\u00e1l\u00f3 l\u00e1mpa param\u00e9tereit r\u00f6gz\u00edthetj\u00fck. Ezut\u00e1n a sz\u00e1ll\u00edt\u00f3szalag sebess\u00e9ge 20-30%-vel cs\u00f6kkenthet\u0151 a fest\u00e9krendszer jellemz\u0151inek vagy a fest\u00e9ksz\u00e1ll\u00edt\u00f3 aj\u00e1nl\u00e1sainak megfelel\u0151en.<\/p>\n

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7. Kell-e agg\u00f3dnom a t\u00falkem\u00e9nyed\u00e9s miatt, ha a sz\u00ednek nem fedik egym\u00e1st?<\/h2>\n

A t\u00falkem\u00e9nyed\u00e9s akkor k\u00f6vetkezik be, amikor a fest\u00e9kfilm fel\u00fclete t\u00fal sok UV-f\u00e9nyt nyel el. Ha ezt a probl\u00e9m\u00e1t nem \u00e9szlelik \u00e9s nem oldj\u00e1k meg id\u0151ben, a tintafilm fel\u00fclete egyre kem\u00e9nyebb\u00e9 v\u00e1lik. Term\u00e9szetesen, am\u00edg nem v\u00e9gz\u00fcnk sz\u00ednes t\u00falnyom\u00e1sos nyomtat\u00e1st, nem kell t\u00fals\u00e1gosan agg\u00f3dnunk e probl\u00e9ma miatt. Van azonban egy m\u00e1sik fontos t\u00e9nyez\u0151 is, amit figyelembe kell venn\u00fcnk, ez pedig a film vagy a hordoz\u00f3, amelyre nyomtatunk. Az UV-f\u00e9ny hat\u00e1ssal lehet a legt\u00f6bb hordoz\u00f3fel\u00fcletre \u00e9s bizonyos m\u0171anyagokra, amelyek \u00e9rz\u00e9kenyek az UV-f\u00e9ny bizonyos hull\u00e1mhosszaira. Ez a bizonyos hull\u00e1mhosszakra val\u00f3 \u00e9rz\u00e9kenys\u00e9g a leveg\u0151ben l\u00e9v\u0151 oxig\u00e9nnel kombin\u00e1lva a m\u0171anyag fel\u00fclet degrad\u00e1ci\u00f3j\u00e1hoz vezethet. A szubsztr\u00e1t fel\u00fclet\u00e9n l\u00e9v\u0151 molekul\u00e1ris k\u00f6t\u00e9sek megszakadhatnak, \u00e9s az UV-tinta \u00e9s a szubsztr\u00e1t k\u00f6z\u00f6tti tapad\u00e1s meghib\u00e1sod\u00e1s\u00e1t okozhatj\u00e1k. A szubsztr\u00e1t fel\u00fcleti funkci\u00f3j\u00e1nak degrad\u00e1ci\u00f3ja fokozatos folyamat, \u00e9s k\u00f6zvetlen kapcsolatban \u00e1ll a szubsztr\u00e1tot \u00e9r\u0151 UV-f\u00e9nyenergi\u00e1val.<\/p>\n

8\u3001Melyik a denzitom\u00e9teren megjelen\u00edtett s\u0171r\u0171s\u00e9gi adatok m\u00e9rt\u00e9kegys\u00e9ge? Milyen t\u00e9nyez\u0151k befoly\u00e1solj\u00e1k a s\u0171r\u0171s\u00e9get?<\/h2>\n

Az optikai s\u0171r\u0171s\u00e9gnek nincs m\u00e9rt\u00e9kegys\u00e9ge. A denzitom\u00e9ter a nyomtatott fel\u00fcletr\u0151l visszavert vagy \u00e1teresztett f\u00e9ny mennyis\u00e9g\u00e9t m\u00e9ri. A denzitom\u00e9terhez csatlakoztatott fotoelektromos szem a visszavert vagy \u00e1teresztett f\u00e9ny sz\u00e1zal\u00e9kos ar\u00e1ny\u00e1t s\u0171r\u0171s\u00e9g\u00e9rt\u00e9kk\u00e9 alak\u00edtja. Szitanyom\u00e1sn\u00e1l a s\u0171r\u0171s\u00e9g\u00e9rt\u00e9ket befoly\u00e1sol\u00f3 f\u0151 v\u00e1ltoz\u00f3k a fest\u00e9kfilm vastags\u00e1ga, a sz\u00edn, a pigmentr\u00e9szecsk\u00e9k m\u00e9rete \u00e9s sz\u00e1ma, valamint a hordoz\u00f3 sz\u00edne. Az optikai s\u0171r\u0171s\u00e9get els\u0151sorban a fest\u00e9kfilm opacit\u00e1sa \u00e9s vastags\u00e1ga hat\u00e1rozza meg, amelyet viszont a pigmentr\u00e9szecsk\u00e9k m\u00e9rete \u00e9s sz\u00e1ma, valamint f\u00e9nyelnyel\u00e9si \u00e9s sz\u00f3r\u00e1si tulajdons\u00e1gaik befoly\u00e1solnak.<\/p>\n

9\u3001A nyomtat\u00e1si hordoz\u00f3 finoms\u00e1gi szintje \u00e9s a finoms\u00e1gi szint megv\u00e1ltoztat\u00e1sa?<\/h2>\n

A dain\/cm a fel\u00fcleti fesz\u00fclts\u00e9g m\u00e9r\u00e9s\u00e9re haszn\u00e1lt m\u00e9rt\u00e9kegys\u00e9g. Ezt a fesz\u00fclts\u00e9get egy adott folyad\u00e9k (fel\u00fcleti fesz\u00fclts\u00e9g) vagy szil\u00e1rd anyag (fel\u00fcleti energia) molekul\u00e1k k\u00f6z\u00f6tti gravit\u00e1ci\u00f3s ereje okozza. Gyakorlati c\u00e9lokra \u00e1ltal\u00e1ban dyneszintk\u00e9nt hivatkozunk erre a param\u00e9terre. Egy adott szubsztr\u00e1tum dyn-szintje vagy fel\u00fcleti energi\u00e1ja jelzi annak nedves\u00edthet\u0151s\u00e9g\u00e9t \u00e9s a tinta tapad\u00e1s\u00e1t. A fel\u00fcleti energia egy anyag fizikai tulajdons\u00e1ga. A nyomtat\u00e1sban haszn\u00e1lt f\u00f3li\u00e1k \u00e9s szubsztr\u00e1tumok k\u00f6z\u00fcl soknak alacsony a nyomdaszintje, p\u00e9ld\u00e1ul a polietil\u00e9nnek 31 dyn\/cm, a polipropil\u00e9nnek pedig 29 dyn\/cm, ez\u00e9rt speci\u00e1lis kezel\u00e9st ig\u00e9nyel.<\/p>\n

L\u00e1ngkezel\u00e9s : A m\u0171anyagok term\u00e9szet\u00fckn\u00e9l fogva nem por\u00f3zusak \u00e9s inert fel\u00fclet\u0171ek (alacsony fel\u00fcleti energi\u00e1j\u00faak). A l\u00e1ngkezel\u00e9s a m\u0171anyagok el\u0151kezel\u00e9s\u00e9re szolg\u00e1l\u00f3 m\u00f3dszer a hordoz\u00f3fel\u00fclet dyne-szintj\u00e9nek n\u00f6vel\u00e9se \u00e9rdek\u00e9ben. A m\u0171anyag palackok nyomtat\u00e1s\u00e1nak ter\u00fclet\u00e9n k\u00edv\u00fcl ezt a m\u00f3dszert sz\u00e9les k\u00f6rben alkalmazz\u00e1k az aut\u00f3iparban \u00e9s a filmfeldolgoz\u00f3 iparban is. A l\u00e1ngkezel\u00e9s nemcsak a fel\u00fcleti energi\u00e1t jav\u00edtja, hanem a fel\u00fcleti szennyez\u0151d\u00e9st is megsz\u00fcnteti. A l\u00e1ngkezel\u00e9s fizikai \u00e9s k\u00e9miai reakci\u00f3k \u00f6sszetett sorozat\u00e1t foglalja mag\u00e1ban. A l\u00e1ngkezel\u00e9s fizikai mechanizmusa a k\u00f6vetkez\u0151: a magas h\u0151m\u00e9rs\u00e9klet\u0171 l\u00e1ng energi\u00e1t ad \u00e1t a hordoz\u00f3 fel\u00fclet\u00e9n l\u00e9v\u0151 olajnak \u00e9s szennyez\u0151d\u00e9seknek, amelyek h\u0151 hat\u00e1s\u00e1ra elp\u00e1rolognak, \u00e9s tiszt\u00edt\u00f3 szerepet j\u00e1tszanak; a k\u00e9miai mechanizmusa pedig a k\u00f6vetkez\u0151: a l\u00e1ng nagysz\u00e1m\u00fa, er\u0151s oxid\u00e1l\u00f3 tulajdons\u00e1gokkal rendelkez\u0151 iont tartalmaz, \u00e9s az oxid\u00e1ci\u00f3s reakci\u00f3 a kezelt anyag fel\u00fclet\u00e9vel magas h\u0151m\u00e9rs\u00e9kleten t\u00f6rt\u00e9nik, amelynek hat\u00e1s\u00e1ra a kezelt anyag fel\u00fclet\u00e9n egy t\u00f6lt\u00f6tt pol\u00e1ris funkci\u00f3s csoportokb\u00f3l \u00e1ll\u00f3 r\u00e9teg k\u00e9pz\u0151dik, ami jav\u00edtja a fel\u00fcleti energi\u00e1t, \u00e9s \u00edgy a Ez n\u00f6veli a fel\u00fcleti energi\u00e1t, \u00e9s \u00edgy a folyad\u00e9kok adszorpci\u00f3s k\u00e9pess\u00e9g\u00e9t. A megfelel\u0151 kezel\u00e9s n\u00f6velheti egyes szubsztr\u00e1tumok Dainty-szintj\u00e9t, de ez csak \u00e1tmeneti. Amikor m\u00e1r k\u00e9szen \u00e1ll a nyomtat\u00e1sra, sz\u00e1mos m\u00e1s t\u00e9nyez\u0151 is befoly\u00e1solhatja a hordoz\u00f3 d\u00ednuszszintj\u00e9t, p\u00e9ld\u00e1ul a kezel\u00e9sek ideje \u00e9s sz\u00e1ma, a t\u00e1rol\u00e1si k\u00f6r\u00fclm\u00e9nyek, a k\u00f6rnyezeti p\u00e1ratartalom \u00e9s a porszint. Mivel a Dain-szintek id\u0151vel v\u00e1ltoznak, a legt\u00f6bb nyomda sz\u00fcks\u00e9gesnek tartja, hogy ezeket a filmeket nyomtat\u00e1s el\u0151tt kezelje vagy \u00fajra kezelje.<\/p>\n

Corona kezel\u00e9s: A koronakis\u00fcl\u00e9s egy m\u00e1sik m\u00f3dszer a Dain-szint n\u00f6vel\u00e9s\u00e9re. A dielektromos tekercsre nagyfesz\u00fclts\u00e9get alkalmazva ioniz\u00e1lni tudja a k\u00f6rnyez\u0151 leveg\u0151t, \u00e9s amikor a hordoz\u00f3 \u00e1thalad ezen az ioniz\u00e1lt ter\u00fcleten, az anyag fel\u00fclet\u00e9n l\u00e9v\u0151 molekul\u00e1ris k\u00f6t\u00e9sek felszakadnak. Ezt a m\u00f3dszert \u00e1ltal\u00e1ban a filmanyagok rot\u00e1ci\u00f3s nyomtat\u00e1s\u00e1n\u00e1l alkalmazz\u00e1k.<\/p>\n

10\u3001Hogyan befoly\u00e1solja a l\u00e1gy\u00edt\u00f3szer a fest\u00e9k tapad\u00e1s\u00e1t a PVC-n?<\/h2>\n

A l\u00e1gy\u00edt\u00f3k olyan vegyi anyagok, amelyek a nyomdai anyagokat l\u00e1gyabb\u00e1 \u00e9s rugalmasabb\u00e1 teszik, \u00e9s a PVC-ben (polivinil-klorid) igen gyakori a haszn\u00e1latuk. A rugalmas PVC-hez vagy m\u00e1s m\u0171anyagokhoz hozz\u00e1adott l\u00e1gy\u00edt\u00f3szer t\u00edpusa \u00e9s mennyis\u00e9ge nagym\u00e9rt\u00e9kben f\u00fcgg a nyomtatott anyagt\u00f3l elv\u00e1rt mechanikai, termikus \u00e9s elektromos tulajdons\u00e1gokt\u00f3l. A l\u00e1gy\u00edt\u00f3szerek k\u00e9pesek a hordoz\u00f3 fel\u00fclet\u00e9re v\u00e1ndorolni \u00e9s befoly\u00e1solni a fest\u00e9k tapad\u00e1s\u00e1t. A hordoz\u00f3 fel\u00fclet\u00e9n maradt l\u00e1gy\u00edt\u00f3k egyfajta szennyez\u0151d\u00e9st jelentenek, ami cs\u00f6kkenti a hordoz\u00f3 fel\u00fcleti energi\u00e1j\u00e1t. Min\u00e9l t\u00f6bb szennyez\u0151d\u00e9s van a fel\u00fcleten, ann\u00e1l alacsonyabb a fel\u00fcleti energia, \u00e9s ann\u00e1l kev\u00e9sb\u00e9 fog tapadni a tinta. Ennek elker\u00fcl\u00e9se \u00e9rdek\u00e9ben nyomtat\u00e1s el\u0151tt enyhe tiszt\u00edt\u00f3 old\u00f3szerrel megtiszt\u00edthatja a hordoz\u00f3t, hogy jav\u00edtsa a nyomtathat\u00f3s\u00e1gukat.<\/p>\n\n\n\n\n\n\n\n\n\n
Lcflex\u00aeT-50<\/span><\/td>\nT-50; ASE<\/td>\nCAS 91082-17-6<\/td>\n<\/tr>\n
Lcflex\u00aeATBC<\/span><\/td>\nAcetil-tributil-citr\u00e1t<\/td>\nCAS 77-90-7<\/td>\n<\/tr>\n
Lcflex\u00ae TBC<\/span><\/td>\nTributil-citr\u00e1t<\/td>\nCAS 77-94-1<\/td>\n<\/tr>\n
Lcflex\u00ae TEP<\/span><\/td>\nTrietilfoszf\u00e1t<\/td>\nCAS 78-40-0<\/td>\n<\/tr>\n
Lcflex\u00ae TCPP<\/span><\/td>\nTCPP \u00e9g\u00e9sg\u00e1tl\u00f3<\/td>\nCAS 13674-84-5<\/td>\n<\/tr>\n
Lcflex\u00ae DOTP<\/span><\/td>\nDioctil tereftal\u00e1t<\/td>\nCAS 6422-86-2<\/td>\n<\/tr>\n
Lcflex\u00ae DEP<\/span><\/td>\nDietil-ftal\u00e1t<\/td>\nCAS 84-66-2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

11\u3001Hogyan befoly\u00e1solja a tinta viszkozit\u00e1sa a nyomtathat\u00f3s\u00e1got?<\/h2>\n

A legt\u00f6bb tinta tixotr\u00f3p, ami azt jelenti, hogy viszkozit\u00e1suk a ny\u00edr\u00e1ssal, az id\u0151vel \u00e9s a h\u0151m\u00e9rs\u00e9klettel v\u00e1ltozik. Ezenk\u00edv\u00fcl min\u00e9l nagyobb a ny\u00edr\u00e1si sebess\u00e9g, ann\u00e1l kisebb lesz a tinta viszkozit\u00e1sa; min\u00e9l magasabb a k\u00f6rnyezeti h\u0151m\u00e9rs\u00e9klet, ann\u00e1l kisebb lesz az \u00e9ves tinta. A szitanyom\u00f3 fest\u00e9kek \u00e1ltal\u00e1ban j\u00f3 eredm\u00e9nyeket \u00e9rnek el a nyomdag\u00e9pen, de esetenk\u00e9nt a nyomdai be\u00e1ll\u00edt\u00e1sokt\u00f3l \u00e9s a nyomdai el\u0151k\u00e9sz\u00edt\u0151 be\u00e1ll\u00edt\u00e1sokt\u00f3l f\u00fcgg\u0151en probl\u00e9m\u00e1k ad\u00f3dnak a nyomtathat\u00f3s\u00e1ggal. A nyomdag\u00e9pen a fest\u00e9k viszkozit\u00e1sa is elt\u00e9r a patronban l\u00e9v\u0151 viszkozit\u00e1s\u00e1t\u00f3l.
\nA tintagy\u00e1rt\u00f3k meghat\u00e1rozott viszkozit\u00e1si tartom\u00e1nyt hat\u00e1roznak meg term\u00e9keik sz\u00e1m\u00e1ra. A t\u00fal h\u00edg vagy alacsony viszkozit\u00e1s\u00fa tinta eset\u00e9ben a felhaszn\u00e1l\u00f3 megfelel\u0151 s\u0171r\u00edt\u0151anyagot is hozz\u00e1adhat; a t\u00fal s\u0171r\u0171 vagy magas viszkozit\u00e1s\u00fa tinta eset\u00e9ben pedig h\u00edg\u00edt\u00f3t is hozz\u00e1adhat.<\/p>\n

<\/h4>\n

12\u3001Melyek azok a t\u00e9nyez\u0151k, amelyek befoly\u00e1solj\u00e1k az UV tinta stabilit\u00e1s\u00e1t vagy eltarthat\u00f3s\u00e1g\u00e1t?<\/h2>\n

A tinta stabilit\u00e1s\u00e1t befoly\u00e1sol\u00f3 fontos t\u00e9nyez\u0151 a tinta t\u00e1rol\u00e1sa. Az UV-tint\u00e1t \u00e1ltal\u00e1ban nem f\u00e9mkazett\u00e1kban, hanem m\u0171anyag kazett\u00e1kban t\u00e1rolj\u00e1k, mivel a m\u0171anyag tart\u00e1ly bizonyos fok\u00fa oxig\u00e9n\u00e1tereszt\u0151 k\u00e9pess\u00e9ggel rendelkezik, ami biztos\u00edtja, hogy a tinta fel\u00fclete \u00e9s a tart\u00e1ly fedele k\u00f6z\u00f6tt bizonyos l\u00e9gr\u00e9s legyen. Ez a l\u00e9gr\u00e9s - k\u00fcl\u00f6n\u00f6sen a leveg\u0151ben l\u00e9v\u0151 oxig\u00e9n - seg\u00edt * minimaliz\u00e1lni a tinta id\u0151 el\u0151tti t\u00e9rh\u00e1l\u00f3sod\u00e1s\u00e1t. A csomagol\u00e1son k\u00edv\u00fcl a tintatart\u00e1lyok h\u0151m\u00e9rs\u00e9klete is d\u00f6nt\u0151 szerepet j\u00e1tszik a stabilit\u00e1s meg\u0151rz\u00e9s\u00e9ben. A magas h\u0151m\u00e9rs\u00e9klet id\u0151 el\u0151tti reakci\u00f3kat \u00e9s a tint\u00e1k keresztk\u00f6t\u00e9s\u00e9t okozhatja.
\nAz eredeti tinta \u00f6sszet\u00e9tel\u00e9nek m\u00f3dos\u00edt\u00e1sa szint\u00e9n befoly\u00e1solhatja a tinta stabilit\u00e1s\u00e1t a polcon. Az adal\u00e9kanyagok, k\u00fcl\u00f6n\u00f6sen a kataliz\u00e1torok \u00e9s a fotoinici\u00e1torok ler\u00f6vid\u00edthetik a tinta eltarthat\u00f3s\u00e1gi idej\u00e9t.<\/p>\n

 <\/p>\n

13\u3001Mi a k\u00fcl\u00f6nbs\u00e9g az IML (in-mold labeling) \u00e9s az IMD (in-mold decoration) k\u00f6z\u00f6tt?<\/h2>\n

Az in-mold c\u00edmk\u00e9z\u00e9s \u00e9s az in-mold dekor\u00e1ci\u00f3 alapvet\u0151 jelent\u00e9se ugyanaz, azaz a c\u00edmk\u00e9t vagy d\u00edsz\u00edt\u0151f\u00f3li\u00e1t (el\u0151regy\u00e1rtott, el\u0151re nem gy\u00e1rtott) a form\u00e1ba helyezik, \u00e9s az olvadt m\u0171anyag t\u00e1mogatja azt, amikor az alkatr\u00e9sz kialakul. Az el\u0151bbi olyan c\u00edmk\u00e9ket haszn\u00e1l, amelyeket k\u00fcl\u00f6nb\u00f6z\u0151 nyomtat\u00e1si technik\u00e1kkal, p\u00e9ld\u00e1ul m\u00e9lynyom\u00e1ssal, ofszet-, flexo- vagy szitanyom\u00e1ssal \u00e1ll\u00edtanak el\u0151. Ezeket a c\u00edmk\u00e9ket \u00e1ltal\u00e1ban csak az anyag fels\u0151 fel\u00fclet\u00e9re nyomtatj\u00e1k, m\u00edg a nyomtat\u00e1s n\u00e9lk\u00fcli oldal a fr\u00f6ccs\u00f6nt\u0151form\u00e1hoz van r\u00f6gz\u00edtve.
\nAz in-mold dekor\u00e1ci\u00f3t legink\u00e1bb tart\u00f3s alkatr\u00e9szek el\u0151\u00e1ll\u00edt\u00e1s\u00e1ra haszn\u00e1lj\u00e1k, \u00e9s \u00e1ltal\u00e1ban az \u00e1tl\u00e1tsz\u00f3 f\u00f3lia m\u00e1sodik fel\u00fclet\u00e9re nyomtatj\u00e1k. Az in-mold dekor\u00e1ci\u00f3t \u00e1ltal\u00e1ban szitanyomtat\u00f3val nyomtatj\u00e1k, \u00e9s a felhaszn\u00e1lt f\u00f3li\u00e1nak \u00e9s UV-fest\u00e9knek kompatibilisnek kell lennie a fr\u00f6ccs\u00f6nt\u0151form\u00e1val.<\/p>\n

L\u00e9pjen kapcsolatba vel\u00fcnk most!<\/b><\/strong><\/h2>\n

Ha sz\u00fcks\u00e9ge van Price-ra, k\u00e9rj\u00fck, t\u00f6ltse ki el\u00e9rhet\u0151s\u00e9g\u00e9t az al\u00e1bbi \u0171rlapon, \u00e1ltal\u00e1ban 24 \u00f3r\u00e1n bel\u00fcl felvessz\u00fck \u00d6nnel a kapcsolatot. \u00d6n is k\u00fcldhet nekem e-mailt info@longchangchemical.com<\/a><\/span>\u00a0munkaid\u0151ben ( 8:30-18:00 UTC+8 H.-Szombat ) vagy haszn\u00e1lja a weboldal \u00e9l\u0151 chatj\u00e9t, hogy azonnali v\u00e1laszt kapjon.<\/b><\/strong><\/h4>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

I. What happens when the ink is over-cured? There is a theory that when the surface of the ink is exposed to too much UV light, it will become harder<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-5447","post","type-post","status-publish","format-standard","hentry","category-catalysts-chemical-auxiliary-agents"],"yoast_head":"\nUV Ink Curing Problems: Causes, Measurements & Fixes<\/title>\n<meta name=\"description\" content=\"Diagnose UV ink under-cure, over-cure, adhesion, yellowing and viscosity problems by checking lamp output, dose, film build, substrate and formulation.\" \/>\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\/hu\/the-complete-guide-to-uv-curing-ink-in-use-in-the-problem\/\" \/>\n<meta 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