Susuz ofset kli\u015fe \u00fcretim prensibi - Fotoba\u015flat\u0131c\u0131<\/p>\n
Susuz ofset plakas\u0131n\u0131n haz\u0131rlanmas\u0131, plakan\u0131n \u0131\u015f\u0131\u011fa duyarl\u0131 katman\u0131n\u0131n bile\u015fimine ba\u011fl\u0131 olarak pozitif tip (pozitif bir resimle pozlanan) ve negatif tip (negatif bir resimle pozlanan) olarak ikiye ayr\u0131l\u0131r. Negatif bir resimle pozlamadan sonra, silikon kau\u00e7u\u011fun pozlanan k\u0131sm\u0131 geli\u015ftirmeden sonra d\u00fc\u015ferek pro-m\u00fcrekkep katman\u0131n\u0131 (grafik) a\u00e7\u0131\u011fa \u00e7\u0131kar\u0131r ve silikon kau\u00e7u\u011fun pozlanmayan k\u0131sm\u0131 (bo\u015fluk) korunur; aksine, \u0131\u015f\u0131\u011fa duyarl\u0131 katman\u0131n pozlanan k\u0131sm\u0131, pozitif resim pozlamas\u0131n\u0131n geli\u015ftirilmesinden sonra itici bir m\u00fcrekkep katman\u0131 haline gelmek i\u00e7in silikon kau\u00e7uk katmanla \u00e7apraz ba\u011flan\u0131r ve silikon kau\u00e7uk katman\u0131n pozlanmayan k\u0131sm\u0131 kald\u0131r\u0131larak bir pro-m\u00fcrekkep katman\u0131n\u0131n olu\u015fmas\u0131na neden olur. \u015eekil 3-12 susuz ofset kli\u015fe yap\u0131m s\u00fcrecini g\u00f6stermek i\u00e7in bir \u00f6rnek olarak negatif resim pozlamas\u0131.<\/p>\n
Susuz ofset bask\u0131 i\u00e7in negatif g\u00f6r\u00fcnt\u00fc kli\u015fesi yap\u0131m s\u00fcrecinin \u015fematik diyagram\u0131<\/p>\n
Susuz ofset bask\u0131 esas olarak katma de\u011ferli ambalaj, plastik kartlar, kendinden yap\u0131\u015fkanl\u0131 etiketler, 3D, d\u0131\u015fb\u00fckey ayna \u015fekli uygulamas\u0131, CD \/ DVD, ah\u015fap \u00fcr\u00fcnler plastik s\u0131zd\u0131rmazl\u0131k vb. gibi y\u00fcksek kaliteli, k\u00fc\u00e7\u00fck bask\u0131 \u00e7al\u0131\u015fmas\u0131 ve k\u0131sa teslimat s\u00fcresi i\u00e7in uygundur. \u00d6zellikle baz\u0131 ekstrem bask\u0131 alanlar\u0131nda uygulanmaya de\u011ferdir.<\/p>\n
Susuz ofset plakas\u0131n\u0131n bo\u015f k\u0131sm\u0131 bir su tabakas\u0131 taraf\u0131ndan korunmad\u0131\u011f\u0131ndan ve m\u00fcrekkebin silikon kau\u00e7uk tabakas\u0131n\u0131n d\u00fc\u015f\u00fck y\u00fczey gerilimi taraf\u0131ndan reddedilmesine dayand\u0131\u011f\u0131ndan, susuz ofset m\u00fcrekkeplerinin y\u00fcksek kohezyona sahip olmas\u0131 gerekir, yani plakan\u0131n kirlenmemesini sa\u011flamak i\u00e7in y\u00fcksek bir viskozite gereklidir (plakan\u0131n bo\u015f k\u0131sm\u0131 m\u00fcrekkep ta\u015f\u0131maz).<\/p>\n
Susuz ofset bask\u0131 f\u0131skiye \u00e7\u00f6zeltisi gerektirmez, sadece bir m\u00fcrekkepleme i\u015flemi gerektirir. Bu nedenle, m\u00fcrekkepleme i\u015fleminin grafik k\u0131sm\u0131n\u0131n m\u00fcrekkebi iyi adsorbe etmesi ve bo\u015f k\u0131sm\u0131n m\u00fcrekkebi itmesi gerekir.<\/p>\n
M\u00fcrekkebin y\u00fczey enerjisi parametrelerine g\u00f6re, grafik par\u00e7an\u0131n y\u00fczey enerjisi m\u00fcrekkepten daha y\u00fcksek oldu\u011fu s\u00fcrece ve bo\u015f par\u00e7an\u0131n y\u00fczey enerjisi m\u00fcrekkepten daha d\u00fc\u015f\u00fck oldu\u011fu s\u00fcrece. Malzeme se\u00e7iminde, yap\u0131\u015fkan kirli bo\u015f k\u0131s\u0131mdaki m\u00fcrekkebi \u00f6nlemek i\u00e7in, genellikle y\u00fczey enerjisinin bo\u015f k\u0131sm\u0131 m\u00fcrekkebin y\u00fczey enerjisinin \u00e7ok alt\u0131nda olmal\u0131d\u0131r. G\u00fcn\u00fcm\u00fczde, bo\u015f k\u0131sm\u0131 silikon kau\u00e7uktan olu\u015fan daha olgun seviyesiz versiyon, \u00e7ok d\u00fc\u015f\u00fck bir y\u00fczey enerjisine sahiptir. Grafik k\u0131sm\u0131, iyi lipofilik m\u00fcrekkep transfer \u00f6zelliklerine sahip polyesterden se\u00e7ilmi\u015ftir.<\/p>\n
Bask\u0131 s\u00fcrecinde susuz ofset bask\u0131, m\u00fcrekkep merdanelerinin ve di\u011fer yumu\u015fak kau\u00e7uk merdanelerin (kau\u00e7uk malzemeler) histerezis \u00e7emberinin varl\u0131\u011f\u0131 nedeniyle, i\u00e7 t\u00fcketim taraf\u0131ndan \u00fcretilen \u0131s\u0131 m\u00fcrekkep s\u0131cakl\u0131\u011f\u0131n\u0131n y\u00fckselmesine ve y\u00fczey enerjisinde bir d\u00fc\u015f\u00fc\u015fe neden olacakt\u0131r. Y\u00fczey enerjisi belirli bir dereceye kadar azald\u0131\u011f\u0131nda, bo\u015f k\u0131s\u0131m ile m\u00fcrekkep aras\u0131ndaki normal y\u00fczey enerjisi ili\u015fkisini yok etmek m\u00fcmk\u00fcnd\u00fcr, b\u00f6ylece bo\u015f k\u0131s\u0131m kirlenir. Bu nedenle, bask\u0131 makinesinin yap\u0131m\u0131nda iyile\u015ftirmeler yap\u0131lmal\u0131d\u0131r. M\u00fcrekkebin s\u0131cakl\u0131\u011f\u0131n\u0131 kontrol etmek i\u00e7in yumu\u015fak kau\u00e7uk silindir i\u00e7i bo\u015f metal tel m\u00fcrekkep silindiri aras\u0131na, hava veya su ve di\u011fer so\u011futma ortam\u0131 yoluyla metal tel m\u00fcrekkep silindirine yerle\u015ftirilebilir.<\/p>\n
\u00d6zel bir m\u00fcrekkep kullanan susuz ofset bask\u0131, temel bile\u015fimi ve geleneksel ofset bask\u0131 m\u00fcrekkebi renk se\u00e7imine benzer, fark yoktur, temel fark malzeme k\u0131sm\u0131na ba\u011fl\u0131 re\u00e7inede kullan\u0131lan m\u00fcrekkeptir. Susuz ofset bask\u0131 m\u00fcrekkebi ve geleneksel ofset bask\u0131 m\u00fcrekkebi a\u015fa\u011f\u0131daki \u00f6zel \u00f6zelliklerle kar\u015f\u0131la\u015ft\u0131r\u0131lm\u0131\u015ft\u0131r.<\/p>\n
\u2460 M\u00fcrekkep ve silikon tabaka aras\u0131ndaki kuvvetten daha b\u00fcy\u00fck olacak kadar nispeten b\u00fcy\u00fck bir m\u00fcrekkep kohezyonu sa\u011flamak i\u00e7in geleneksel ofset m\u00fcrekkebinden daha y\u00fcksek bir viskoziteye ve viskoziteye sahip olmas\u0131 gerekir, b\u00f6ylece silikon tabaka oleofobik g\u00f6sterir, b\u00f6ylece susuz bask\u0131 elde etmek i\u00e7in silikon kau\u00e7uk tabakan\u0131n m\u00fcrekkep ve grafik olmayan k\u0131sm\u0131 itici olur.<\/p>\n
\u2461 susuz ofset bask\u0131n\u0131n \u00f6zel reolojik \u00f6zelliklerine uyum sa\u011flamal\u0131d\u0131r. Susuz ofset bask\u0131 m\u00fcrekkebi y\u00fcksek bir viskoziteye sahip oldu\u011fundan, m\u00fcrekkep silindiri ile bask\u0131 plakas\u0131 aras\u0131nda dola\u015fmas\u0131 daha zordur, bu da m\u00fcrekkebin daha iyi reolojik \u00f6zelliklere sahip olmas\u0131 i\u00e7in \u00f6zel bir tasar\u0131ma sahip olmas\u0131n\u0131 gerektirir.<\/p>\n
\u2462 Susuz ofset bask\u0131da s\u0131cakl\u0131\u011f\u0131n \u00f6zel etkisi nedeniyle, daha geni\u015f bir s\u0131cakl\u0131k adaptasyon aral\u0131\u011f\u0131na sahip olmak da arzu edilir.<\/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>\n <\/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 <\/p>\n <\/p>","protected":false},"excerpt":{"rendered":" The preparation of the waterless offset plate is divided into positive type (exposed with a positive picture) and negative type (exposed with a negative picture), depending on the composition of<\/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-7870","post","type-post","status-publish","format-standard","hentry","category-photoinitiator"],"yoast_head":"\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\u015eimdi Bize Ula\u015f\u0131n!<\/b><\/strong><\/h2>\n
Fiyata ihtiyac\u0131n\u0131z varsa, l\u00fctfen a\u015fa\u011f\u0131daki forma ileti\u015fim bilgilerinizi doldurun, genellikle 24 saat i\u00e7inde sizinle ileti\u015fime ge\u00e7ece\u011fiz. Bana e-posta da g\u00f6nderebilirsiniz info@longchangchemical.com<\/span><\/a>\u00a0\u00c7al\u0131\u015fma saatleri i\u00e7inde (8:30 - 6:00 UTC+8 Pzt.~Sat.) veya h\u0131zl\u0131 yan\u0131t almak i\u00e7in web sitesi canl\u0131 sohbetini kullan\u0131n.<\/b><\/strong><\/h4>\n
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\n Fotoba\u015flat\u0131c\u0131 TPO<\/span><\/a><\/td>\n CAS 75980-60-8<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 TMO<\/span><\/a><\/td>\n CAS 270586-78-2<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 PD-01<\/span><\/a><\/td>\n CAS 579-07-7<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 PBZ<\/span><\/a><\/td>\n CAS 2128-93-0<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 OXE-02<\/span><\/a><\/td>\n CAS 478556-66-0<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 OMBB<\/span><\/a><\/td>\n CAS 606-28-0<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 MPBZ (6012)<\/span><\/a><\/td>\n CAS 86428-83-3<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 MBP<\/span><\/a><\/td>\n CAS 134-84-9<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 MBF<\/span><\/a><\/td>\n CAS 15206-55-0<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 LAP<\/span><\/a><\/td>\n CAS 85073-19-4<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 ITX<\/span><\/a><\/td>\n CAS 5495-84-1<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 EMK<\/span><\/a><\/td>\n CAS 90-93-7<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 EHA<\/span><\/a><\/td>\n CAS 21245-02-3<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 EDB<\/span><\/a><\/td>\n CAS 10287-53-3<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 DETX<\/span><\/a><\/td>\n CAS 82799-44-8<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 CQ \/ Camphorquinone<\/span><\/a><\/td>\n CAS 10373-78-1<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 CBP<\/span><\/a><\/td>\n CAS 134-85-0<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 BP \/ Benzofenon<\/span><\/a><\/td>\n CAS 119-61-9<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 BMS<\/span><\/a><\/td>\n CAS 83846-85-9<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 938<\/span><\/a><\/td>\n CAS 61358-25-6<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 937<\/span><\/a><\/td>\n CAS 71786-70-4<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 819 DW<\/span><\/a><\/td>\n CAS 162881-26-7<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 819<\/span><\/a><\/td>\n CAS 162881-26-7<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 784<\/span><\/a><\/td>\n CAS 125051-32-3<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 754<\/span><\/a><\/td>\n CAS 211510-16-6 442536-99-4<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 6993<\/span><\/a><\/td>\n CAS 71449-78-0<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 6976<\/span><\/a><\/td>\n CAS 71449-78-0 89452-37-9 108-32-7<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 379<\/span><\/a><\/td>\n CAS 119344-86-4<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 369<\/span><\/a><\/td>\n CAS 119313-12-1<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 160<\/a><\/span><\/td>\n CAS 71868-15-0<\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 1206<\/span><\/a><\/td>\n <\/td>\n<\/tr>\n \n Fotoba\u015flat\u0131c\u0131 1173<\/span><\/a><\/td>\n CAS 7473-98-5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n