Posindikizira ma CD, mtundu wakumbuyo nthawi zambiri umasindikizidwa koyamba kuti ukhale wokongoletsedwa ndi mawonekedwe apamwamba ndikutsata mtengo wowonjezera wa chinthucho. Pogwira ntchito, zapezeka kuti ndondomeko yosindikizirayi imakonda kristalo wa inki. Kodi chifukwa chake ndi chiyani?
1, Kuti mukwaniritse maziko owala komanso owala, wosanjikiza wa inki nthawi zambiri amasindikizidwa wandiweyani kapena amasindikizidwanso kamodzi kapena ndi kukakamiza kosindikiza kowonjezereka, ndipo mafuta owuma amawonjezedwa posindikiza. Ngakhale wosanjikiza wa inki umakwirira chonyamulira chosindikizira, kuyanika kofulumira kumabweretsa filimu yosalala kwambiri ya inki pamwamba pa inki yosindikizira pambuyo pakupanga filimu, zomwe zimapangitsa kuti zikhale zovuta kusindikiza bwino, ngati galasi. Izi zimapangitsa inki kusindikizidwa mosagwirizana kapena kosatheka kusindikiza. Inki yamafuta yosindikizidwa pachivundikiro (stack) imakhala ndi mikanda yosindikizira kapena yofooka pamtundu wapansi, ndipo inkiyo imalumikizidwa bwino, zina zomwe zimatha kufufutidwa. Makampani osindikizira amawatcha kuti filimu ya inki crystallization, vitrification, kapena mirrorization.
Pofuna kumveketsa bwino m'mphepete mwazithunzi ndi zolemba, opanga ambiri awonjezera mafuta a silicone ku makina a inki m'zaka zaposachedwa. Komabe, mafuta ochulukirapo a silikoni nthawi zambiri amachititsa kuti filimu ya inki ikhale yowongoka.
Pakali pano pali malingaliro osiyanasiyana pazifukwa za crystallization ya mafilimu a inki. Malinga ndi chiphunzitso cha crystallization, crystallization ndi njira yopangira makhiristo kuchokera kumadzi (madzi kapena kusungunula) kapena gasi. Chinthu chomwe kusungunuka kwake kumachepa kwambiri ndi kutentha kochepa, ndipo yankho lake lingathe kufika pa machulukidwe ndi kuyera mwa kuzizira; Chinthu chomwe kusungunuka kwake kumachepetsa pang'ono ndi kutentha kwacheperachepera, kumawonekera pamene zosungunulira zina ziswa nthunzi kenako kuzizira. Anthu ena amakhulupirira kuti crystallization wa ma CD kusindikiza zithunzi ndi malemba (inki filimu wosanjikiza) amatchedwa recrystallization... Kusindikiza inki filimu dongosolo amapangidwa ndi zosungunulira evaporation (evaporation) ndiyeno kuzirala, amatchedwanso recrystallization.
2, Anthu ena amakhulupirira kuti crystallization (crystallization) wa ma CD inki yosindikiza makamaka amayamba chifukwa cha crystallization ya inki mu dongosolo inki.
Tikudziwa kuti makhiristo a pigment akakhala anisotropic, mawonekedwe awo amafanana ndi singano kapena ndodo. Popanga filimu ya inki, kutalika kwake kumakonzedwa mosavuta motsatira kayendetsedwe ka utomoni (zolumikizira) mu dongosolo, zomwe zimapangitsa kuchepa kwakukulu; Komabe, palibe njira yowongolera panthawi yozungulira ya crystallization, zomwe zimapangitsa kuchepa pang'ono. Inorganic inki mu makina osindikizira osindikizira amakhala ndi makhiristo ozungulira, monga inki yosindikizira ya cadmium, yomwe ilinso ndi shrinkage yaying'ono (crystallization).
The tinthu kukula kumakhudzanso akamaumba shrinkage mlingo ndi akamaumba shrinkage chiŵerengero. Pamene tinthu tating'onoting'ono ta pigment ndi zazikulu kapena zazing'ono pamlingo wina, kuchuluka kwa shrinkage ndi shrinkage ndizochepa kwambiri. Kumbali inayi, ma resin okhala ndi makhiristo akulu ndi mawonekedwe ozungulira amawonetsa kucheperako pang'ono, pomwe utomoni wokhala ndi makhiristo akulu ndi mawonekedwe osazungulira amawonetsa kufota kwakukulu.
Mwachidule, kaya ndi subtractive kusanganikirana mtundu inki kapena zowonjezera kusanganikirana kuwala mtundu, ntchito yolondola inki si zogwirizana ndi kapangidwe kawo mankhwala, komanso makamaka zimadalira katundu wawo thupi, monga galasi tinthu kukula kugawa, zochitika za condensation, zothetsera zolimba, ndi zina zokopa; Tiyeneranso kuwunika bwino ubwino ndi kuipa kwa mitundu yonse ya inorganic ndi organic pigment, kuti izikhala pamodzi, ndipo womalizayo akhale ndi malo oyamba.
Posankha ma CD inki yosindikizira (pigment), m'pofunikanso kuganizira mphamvu zake zopaka utoto (zabwino kwambiri kubalalitsidwa, kukweza mphamvu ya utoto, koma pali malire opitilira mphamvu yopaka utoto) Mphamvu yophimba (mawonekedwe a absorbance). Kusiyanitsa kwa pigment yokha, kusiyana kwa refractive index pakati pa pigment ndi resin binder yofunikira kuti ipendeke, kukula kwa pigment particles, mawonekedwe a kristalo a pigment, ndi mawonekedwe a maselo a pigment ndi apamwamba kuposa a symmetrical. mawonekedwe otsika a kristalo).
Mphamvu yophimba ya mawonekedwe a crystalline ndi yaikulu kuposa mawonekedwe a ndodo, ndipo mphamvu yophimba ya pigment yokhala ndi crystallinity yapamwamba ndi yaikulu kuposa ya pigments yokhala ndi crystallinity yochepa. Choncho, mphamvu yophimba ya filimu ya inki yosindikizira yosindikizira, imakhala yowonjezereka kuti magalasi awonongeke. Kukana kutentha, kukana kusamuka, kukana nyengo, kukana kusungunuka, ndi kuyanjana ndi ma polima (ma resin mu makina a inki yamafuta) kapena zowonjezera sizinganyalanyazidwe.
3, Ogwiritsa ntchito ena amakhulupirira kuti kusankha kosayenera kungayambitsenso kulephera kwa crystallization. Ndi chifukwa chakuti inki yoyambira imauma kwambiri (mokwanira), zomwe zimapangitsa kuchepa kwa mphamvu yaulere. Pakalipano, ngati nthawi yosungiramo mtundu umodzi wosindikizira ndi wautali kwambiri, kutentha kwa msonkhano kumakhala kokwera kwambiri, kapena pali ma desiccants osindikizira ambiri, makamaka cobalt desiccants, ngati njira zowuma mofulumira komanso mwamphamvu, monga kuyanika, zimagwiritsidwa ntchito, zochitika za crystallization. zidzachitika.
Nthawi yotumiza: Nov-22-2023
