{"id":734,"date":"2013-12-22T00:21:32","date_gmt":"2013-12-21T23:21:32","guid":{"rendered":"http:\/\/www.proof.de\/?post_type=encyclopedia&p=734"},"modified":"2022-03-15T12:03:37","modified_gmt":"2022-03-15T11:03:37","slug":"optikai-feherito","status":"publish","type":"encyclopedia","link":"https:\/\/proof.proofen.de\/hu\/lexikon\/optikai-feherito\/","title":{"rendered":"Optikai feh\u00e9r\u00edt\u0151k"},"content":{"rendered":"
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Optische Vil\u00e1gos\u00edt\u00f3<\/a> sind Zusatzstoffe, die von Papierherstellern verwendet werden, um ein Papier weißer und leuchtender aussehen zu lassen.<\/p>\n

Ahhoz, hogy a pap\u00edr feh\u00e9rebbnek t\u0171nj\u00f6n, olyan anyagokat kell hozz\u00e1adni a pap\u00edrhoz, amelyek a 320 \u00e9s 400 nanom\u00e9ter k\u00f6z\u00f6tti l\u00e1thatatlan ultraibolya spektrumot<\/a> a 400 nanom\u00e9ter feletti l\u00e1that\u00f3 tartom\u00e1nyba tolj\u00e1k. Ennek eredm\u00e9nyek\u00e9ppen a pap\u00edr k\u00e9kesebb\u00e9 v\u00e1lik, illetve fluoreszk\u00e1l az emberi szem sz\u00e1m\u00e1ra \u00e9ppen csak l\u00e1that\u00f3 ter\u00fcleteken. M\u00edg a mi szem\u00fcnk ezt vil\u00e1gosabb, k\u00e9kesfeh\u00e9rnek \u00e9rz\u00e9keli, addig egy sz\u00ednm\u00e9r\u0151<\/a> csak egy m\u00e1sik k\u00e9ket l\u00e1t. A sz\u00ednm\u00e9r\u00e9st<\/a> ez\u00e9rt az optikai \u00e9l\u00e9nk\u00edt\u0151k kiss\u00e9 torz\u00edtj\u00e1k, pl. a l\u00e9trehozott profilok s\u00e1rg\u00e1sak lehetnek, mivel a m\u00e9r\u0151eszk\u00f6z megpr\u00f3b\u00e1lja korrig\u00e1lni a pap\u00edr k\u00e9kes \u00e1rnyalat\u00e1t.<\/p>\n

Sok \"feh\u00e9r\" pap\u00edr tartalmaz optikai feh\u00e9r\u00edt\u0151ket. Egyes esetekben a feh\u00e9r\u00edt\u0151 hat\u00e1s viszonylag r\u00f6vid id\u0151 alatt, n\u00e9h\u00e1ny \u00e9v alatt gyeng\u00fcl, ami azt jelenti, hogy a pap\u00edr b\u00f6lcsess\u00e9ge cs\u00f6kken.<\/p>","protected":false},"excerpt":{"rendered":"

Az optikai feh\u00e9r\u00edt\u0151k olyan adal\u00e9kanyagok, amelyeket a pap\u00edrgy\u00e1rt\u00f3k haszn\u00e1lnak, hogy a pap\u00edr feh\u00e9rebbnek \u00e9s vil\u00e1gosabbnak t\u0171nj\u00f6n. <\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","template":"","meta":{"inline_featured_image":false,"footnotes":""},"class_list":["post-734","encyclopedia","type-encyclopedia","status-publish","hentry","no-featured-image-padding"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\n\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t