{"id":471,"date":"2019-04-09T20:29:55","date_gmt":"2019-04-09T20:29:55","guid":{"rendered":"https:\/\/www.vytisknetesi.cz\/blog\/\/?p=471"},"modified":"2019-04-09T20:29:55","modified_gmt":"2019-04-09T20:29:55","slug":"ctyrbarevny-tisk-a-jak-to-vlastne-funguje","status":"publish","type":"post","link":"https:\/\/www.vytisknetesi.cz\/blog\/technologie\/2019\/ctyrbarevny-tisk-a-jak-to-vlastne-funguje\/","title":{"rendered":"\u010cTY\u0158BAREVN\u00dd TISK A JAK TO VLASTN\u011a FUNGUJE"},"content":{"rendered":"

 <\/p>\n

\u010cty\u0159barevn\u00fd tisk je technika, kter\u00e1 umo\u017e\u0148uje tisknout barevn\u011b. V sou\u010dastnosti je standardnem pro ofsetov\u00fd a digit\u00e1ln\u00ed tisk a jako takov\u00fd je nejroz\u0161\u00ed\u0159en\u011bj\u0161\u00edm na sv\u011bt\u011b. D\u00edky t\u00e9to technologii jsme tak\u00e9 schopni reprodukovat t\u00e9m\u011b\u0159 70% barev viditeln\u00fdm lidsk\u00fdm okem.<\/p>\n

Jak funguje \u010dty\u0159barevn\u00fd tisk?<\/h2>\n

\u010cty\u0159barevn\u00fd tisk spojuje dohromady \u010dty\u0159i z\u00e1kladn\u00ed barvy: AZUROVOU, PURPUROVOU, \u017dLUTOU A \u010cERNOU. To n\u00e1m d\u00e1va zkratku CMYK (CYAN – MAGENTA – YELLOW – BLACK).
\nTyto \u010dty\u0159i z\u00e1kladn\u00ed barvy d\u00edky subtraktivn\u00edho m\u00edch\u00e1n\u00ed vytv\u00e1\u0159\u00ed mnoho dal\u0161\u00edch barev. Cel\u00e1 tato \u0161k\u00e1la se pak naz\u00fdva barevn\u00fd gamut.<\/p>\n

\nCo je substraktivn\u00ed m\u00edch\u00e1n\u00ed barev?<\/h2>\n

\nSubtraktivn\u00ed m\u00edch\u00e1n\u00ed barev je zp\u016fsob m\u00edch\u00e1n\u00ed barev, kdy se s ka\u017edou dal\u0161\u00ed p\u0159idanou barvou ub\u00edr\u00e1 \u010d\u00e1st p\u016fvodn\u00edho sv\u011btla. Pokud nap\u0159\u00edklad skl\u00e1d\u00e1me na sebe barevn\u00e9 filtry nebo m\u00edch\u00e1me pigmentov\u00e9 barvy, m\u00edch\u00e1me je subtraktivn\u00ed metodou. Sv\u011btlo proch\u00e1z\u00ed jednotliv\u00fdmi barevn\u00fdmi vrstvami a je st\u00e1le v\u00edce pohlcov\u00e1no. V\u00fdsledn\u00e1 barva se skl\u00e1d\u00e1 z vlnov\u00fdch d\u00e9lek, kter\u00e9 zbudou po odrazu nebo pr\u016fchodu filtrem. Sm\u00edch\u00e1n\u00edm modrozelen\u00e9 (azurov\u00e9) a \u017elut\u00e9 barvy vznikne barva zelen\u00e1, \u017elut\u00e9 a purpurov\u00e9 barva \u010derven\u00e1 a purpurov\u00e9 a modrozelen\u00e9 barva modr\u00e1. Sm\u00edch\u00e1n\u00edm v\u0161ech t\u0159\u00ed z\u00e1kladn\u00edch barev dostaneme barvu \u010dernou. Z d\u016fvodu \u00faspory pigmentu (inkoustu, toneru) p\u0159i tisku tmav\u00fdch odst\u00edn\u016f se nav\u00edc pou\u017e\u00edv\u00e1 i samostatn\u00fd \u010dern\u00fd pigment.<\/p>\n

\nJak se m\u00edchaj\u00ed barvy p\u0159i tisku?<\/h2>\n

\nNefunguje to tak, jak to zn\u00e1me nap\u0159\u00edklad z mal\u00ed\u0159sk\u00e9ho pl\u00e1tna. M\u00edch\u00e1n\u00ed barev p\u0159i tisku zahrnuje spoustu drobn\u00fdch jednobarevn\u00fdch te\u010dek. Ty se v p\u0159edem ur\u010den\u00e9m mno\u017estv\u00ed a velikosti prol\u00ednaj\u00ed a d\u00edky tomu na\u0161e o\u010di a mozek zpracuje a zjednodu\u0161en\u011b \u0159e\u010deno p\u0159evede na ur\u010dit\u00e9 barvy.<\/p>\n

\nPro\u010d jen \u010dty\u0159i barvy?<\/h2>\n

\nTisk pomoc\u00ed technologie CMYK dok\u00e1\u017eeme reprodukovat nej\u0161ir\u0161\u00ed spektrum tisknuteln\u00fdch barev s nejmen\u0161\u00edm po\u010dtem z\u00e1kladn\u00edch barev. Hraje v tom tedy velkou roli cenov\u00e1 dostupnost samotn\u00e9 technologie. Existuj\u00ed samoz\u0159ejm\u011b i tiskov\u00e9 stroje, kter\u00e9 maj\u00ed 6 nebo i 8 tiskov\u00fdch barev. Ty se pou\u017e\u00edvaj\u00ed ke zv\u00fd\u0161en\u00ed reprodukovan\u00e9ho spektra nebo ke zv\u00fd\u0161en\u00ed jasu nebo realismu barev.
\nDal\u0161\u00edm zp\u016fsobem, jak tisknout je pomoc\u00ed p\u0159\u00edm\u00fdch barev PANTONE. Tato legend\u00e1rn\u00ed vytv\u00e1\u0159\u00ed speci\u00e1ln\u00ed p\u0159\u00edm\u00e9 barvy. Pantone m\u00e1 moment\u00e1ln\u011b ve sv\u00e9m vzorn\u00edku 1114 barev, kter\u00e9 jsou nam\u00edchan\u00e9 pomoc\u00ed 13 r\u016fzn\u00fdch pigment\u016f + \u010dern\u00fd. Je ale jasn\u00e9, \u017ee tisk pomoc\u00ed p\u0159\u00edm\u00fdch barev je oproti tisku CMYK mnohon\u00e1sobn\u011b dra\u017e\u0161\u00ed. Tisk\u00e1rny mus\u00ed objedn\u00e1vat specifick\u00e9 p\u0159\u00edm\u00e9 barvy a dr\u017eet je na sklad\u011b.
\nNejb\u011b\u017en\u011bj\u0161\u00ed pou\u017e\u00edvanou a cenov\u011b dostupnou technologi\u00ed tedy z\u016fst\u00e1v\u00e1 \u010dty\u0159barevn\u00fd tisk.<\/p>\n","protected":false},"excerpt":{"rendered":"

  \u010cty\u0159barevn\u00fd tisk je technika, kter\u00e1 umo\u017e\u0148uje tisknout barevn\u011b. V sou\u010dastnosti je standardnem pro ofsetov\u00fd a digit\u00e1ln\u00ed tisk a jako takov\u00fd je nejroz\u0161\u00ed\u0159en\u011bj\u0161\u00edm na sv\u011bt\u011b. D\u00edky t\u00e9to technologii jsme tak\u00e9 schopni reprodukovat t\u00e9m\u011b\u0159 70% barev viditeln\u00fdm lidsk\u00fdm okem. Jak funguje \u010dty\u0159barevn\u00fd tisk? \u010cty\u0159barevn\u00fd tisk spojuje dohromady \u010dty\u0159i z\u00e1kladn\u00ed barvy: AZUROVOU, PURPUROVOU, \u017dLUTOU A \u010cERNOU. To n\u00e1m d\u00e1va zkratku CMYK (CYAN – MAGENTA – YELLOW – BLACK). Tyto \u010dty\u0159i z\u00e1kladn\u00ed barvy d\u00edky subtraktivn\u00edho m\u00edch\u00e1n\u00ed vytv\u00e1\u0159\u00ed mnoho dal\u0161\u00edch barev. Cel\u00e1 tato \u0161k\u00e1la se pak naz\u00fdva barevn\u00fd gamut. Co je substraktivn\u00ed m\u00edch\u00e1n\u00ed barev? Subtraktivn\u00ed m\u00edch\u00e1n\u00ed barev je zp\u016fsob m\u00edch\u00e1n\u00ed barev, kdy se s ka\u017edou dal\u0161\u00ed p\u0159idanou barvou ub\u00edr\u00e1 \u010d\u00e1st p\u016fvodn\u00edho sv\u011btla. Pokud nap\u0159\u00edklad skl\u00e1d\u00e1me na sebe barevn\u00e9 filtry nebo m\u00edch\u00e1me pigmentov\u00e9 barvy, m\u00edch\u00e1me je subtraktivn\u00ed metodou. Sv\u011btlo proch\u00e1z\u00ed jednotliv\u00fdmi barevn\u00fdmi vrstvami a je st\u00e1le v\u00edce pohlcov\u00e1no. V\u00fdsledn\u00e1 barva se skl\u00e1d\u00e1 z vlnov\u00fdch d\u00e9lek, kter\u00e9 zbudou po odrazu nebo pr\u016fchodu filtrem. Sm\u00edch\u00e1n\u00edm modrozelen\u00e9 (azurov\u00e9) a \u017elut\u00e9 barvy vznikne barva zelen\u00e1, \u017elut\u00e9 a purpurov\u00e9 barva \u010derven\u00e1 a purpurov\u00e9 a modrozelen\u00e9 barva modr\u00e1. Sm\u00edch\u00e1n\u00edm v\u0161ech t\u0159\u00ed z\u00e1kladn\u00edch barev dostaneme barvu \u010dernou. Z d\u016fvodu \u00faspory pigmentu (inkoustu, toneru) p\u0159i tisku tmav\u00fdch odst\u00edn\u016f se nav\u00edc pou\u017e\u00edv\u00e1 i samostatn\u00fd \u010dern\u00fd pigment. Jak se m\u00edchaj\u00ed barvy p\u0159i tisku? Nefunguje to tak, jak to zn\u00e1me nap\u0159\u00edklad z mal\u00ed\u0159sk\u00e9ho pl\u00e1tna. M\u00edch\u00e1n\u00ed barev p\u0159i tisku zahrnuje spoustu drobn\u00fdch jednobarevn\u00fdch te\u010dek. Ty se v p\u0159edem ur\u010den\u00e9m mno\u017estv\u00ed a velikosti prol\u00ednaj\u00ed a d\u00edky tomu na\u0161e o\u010di a mozek zpracuje a zjednodu\u0161en\u011b \u0159e\u010deno p\u0159evede na ur\u010dit\u00e9 barvy. Pro\u010d jen \u010dty\u0159i barvy? Tisk pomoc\u00ed technologie CMYK dok\u00e1\u017eeme reprodukovat nej\u0161ir\u0161\u00ed spektrum tisknuteln\u00fdch barev s nejmen\u0161\u00edm po\u010dtem z\u00e1kladn\u00edch barev. Hraje v tom tedy velkou roli cenov\u00e1 dostupnost samotn\u00e9 technologie. Existuj\u00ed samoz\u0159ejm\u011b i tiskov\u00e9 stroje, kter\u00e9 maj\u00ed 6 nebo i 8 tiskov\u00fdch barev. Ty se pou\u017e\u00edvaj\u00ed ke zv\u00fd\u0161en\u00ed reprodukovan\u00e9ho spektra nebo ke zv\u00fd\u0161en\u00ed jasu nebo realismu barev. Dal\u0161\u00edm zp\u016fsobem, jak tisknout je pomoc\u00ed p\u0159\u00edm\u00fdch barev PANTONE. Tato legend\u00e1rn\u00ed vytv\u00e1\u0159\u00ed speci\u00e1ln\u00ed p\u0159\u00edm\u00e9 barvy. Pantone m\u00e1 moment\u00e1ln\u011b ve sv\u00e9m vzorn\u00edku 1114 barev, kter\u00e9 jsou nam\u00edchan\u00e9 pomoc\u00ed 13 r\u016fzn\u00fdch pigment\u016f + \u010dern\u00fd. Je ale jasn\u00e9, \u017ee tisk pomoc\u00ed p\u0159\u00edm\u00fdch barev je oproti tisku CMYK mnohon\u00e1sobn\u011b dra\u017e\u0161\u00ed. Tisk\u00e1rny mus\u00ed objedn\u00e1vat specifick\u00e9 p\u0159\u00edm\u00e9 barvy a dr\u017eet je na sklad\u011b. Nejb\u011b\u017en\u011bj\u0161\u00ed pou\u017e\u00edvanou a cenov\u011b dostupnou technologi\u00ed tedy z\u016fst\u00e1v\u00e1 \u010dty\u0159barevn\u00fd tisk.<\/p>\n","protected":false},"author":4,"featured_media":472,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[43,42],"tags":[],"_links":{"self":[{"href":"https:\/\/www.vytisknetesi.cz\/blog\/wp-json\/wp\/v2\/posts\/471"}],"collection":[{"href":"https:\/\/www.vytisknetesi.cz\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vytisknetesi.cz\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vytisknetesi.cz\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vytisknetesi.cz\/blog\/wp-json\/wp\/v2\/comments?post=471"}],"version-history":[{"count":1,"href":"https:\/\/www.vytisknetesi.cz\/blog\/wp-json\/wp\/v2\/posts\/471\/revisions"}],"predecessor-version":[{"id":473,"href":"https:\/\/www.vytisknetesi.cz\/blog\/wp-json\/wp\/v2\/posts\/471\/revisions\/473"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.vytisknetesi.cz\/blog\/wp-json\/wp\/v2\/media\/472"}],"wp:attachment":[{"href":"https:\/\/www.vytisknetesi.cz\/blog\/wp-json\/wp\/v2\/media?parent=471"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vytisknetesi.cz\/blog\/wp-json\/wp\/v2\/categories?post=471"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vytisknetesi.cz\/blog\/wp-json\/wp\/v2\/tags?post=471"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}