{"id":5609,"date":"2024-04-16T01:16:43","date_gmt":"2024-04-15T23:16:43","guid":{"rendered":"https:\/\/www.proof.de\/?p=5609"},"modified":"2024-04-16T17:37:24","modified_gmt":"2024-04-16T15:37:24","slug":"exakt-provtryckning-av-tonvaerden-foer-spotfaerger","status":"publish","type":"post","link":"https:\/\/blog.proofs.de\/sv\/tonwerte-von-sonderfarben-praezise-proofen\/","title":{"rendered":"Exakt korrektur av tonalv\u00e4rdena f\u00f6r spotf\u00e4rger"},"content":{"rendered":"<div class=\"kk-star-ratings kksr-auto kksr-align-right kksr-valign-top\" data-payload='{\"align\":\"right\",\"id\":\"5609\",\"slug\":\"default\",\"valign\":\"top\",\"ignore\":\"\",\"reference\":\"auto\",\"class\":\"\",\"count\":\"8\",\"legendonly\":\"\",\"readonly\":\"\",\"score\":\"4.2\",\"starsonly\":\"\",\"best\":\"5\",\"gap\":\"5\",\"greet\":\"Jetzt bewerten\",\"legend\":\"4.2\\\/5 - (8 votes)\",\"size\":\"24\",\"title\":\"Tonwerte von Sonderfarben pr&auml;zise proofen\",\"width\":\"119.3\",\"_legend\":\"{score}\\\/{best} - ({count} {votes})\",\"font_factor\":\"1.25\"}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 119.3px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            4,2\/5 - (8 r\u00f6ster)    <\/div>\n    <\/div>\n\n<p class=\"wp-block-paragraph translation-block\">Under de senaste veckorna har det f\u00f6rekommit l\u00e5nga diskussioner p\u00e5 e-postlistan f\u00f6r digitaltryck hos <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/fogra\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">Fogra<\/a> om huruvida ett forskningsprojekt om D<a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/efi\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">efi<\/a>nition av standardiserade tonv\u00e4rdesgraderingar av <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/color-especial\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">specialf\u00e4rger<\/a> ska startas. Vad handlar det h\u00e4r om?<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Inom omr\u00e5det <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/cmyk\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">CMYK<\/a> och sjuf\u00e4rgstryck \u00e4r definitionen av tydliga, tryckbara och <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/prueba\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">bevisbara standarder v\u00e4letablerad och perfekt bevisad i praktiken. Om papperet eller pappersklassen \u00e4r k\u00e4nd och definierad, en m\u00e4tstandard som M0\/M1\/M2 har fastst\u00e4llts och inneh\u00e5llet av optiska vitmedel \u00e4r k\u00e4nt, kan en enast\u00e5ende exakt representation av det efterf\u00f6ljande trycket uppn\u00e5s i provet. Standarderna <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/iso-12647\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">ISO 12647<\/a>-7 och -8 utg\u00f6r en mycket bra grund f\u00f6r detta. Och om det \u00e4r m\u00f6jligt att visa ett exakt provtryck kan designers och grafiker ocks\u00e5 arbeta p\u00e5 ett tillf\u00f6rlitligt s\u00e4tt, eftersom de kan skapa exakta, f\u00e4rgkorrekta layouter baserat p\u00e5 f\u00f6ruts\u00e4gbara tryck- och provtryckresultat.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c4r spotf\u00e4rger i provf\u00e4rgsinbindningen?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Specialf\u00e4rger som <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/pantone\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">PANTONE<\/a> kan dock st\u00f6ra denna tillf\u00f6rlitliga produktionsprocess avsev\u00e4rt: De v\u00e4ljs vanligtvis ut av grafiska formgivare och varum\u00e4rkes\u00e4gare bland f\u00e4rgfans och anv\u00e4nds som standard vid tryckning. F\u00f6rutom PANTONE finns \u00e4ven andra system som <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/hks\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">HKS<\/a>, Toyo, DIC och m\u00e5nga fler tillg\u00e4ngliga p\u00e5 marknaden. God bevisbarhet och simulerbarhet ges ocks\u00e5 h\u00e4r om den \u00e4r tillg\u00e4nglig antingen spektralt eller som ett <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/laboratorio\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">LAB<\/a>-v\u00e4rde med ett definierat m\u00e4tf\u00f6rh\u00e5llande, och <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/pruebas\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">bevis<\/a> systemet kan t\u00e4cka denna f\u00e4rg i sitt <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/espacio-cromatico\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">f\u00e4rgrum<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tyv\u00e4rr har endast fulltoner definierats f\u00f6r beviset hittills. Den nuvarande ISO 12647-7 anger samma sak: <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Det finns inget standardiserat s\u00e4tt att kommunicera kul\u00f6rtonen f\u00f6r en enf\u00e4rgad f\u00e4rg, s\u00e5 m\u00e5lv\u00e4rden och toleranser f\u00f6r kul\u00f6rtonen f\u00f6r en enf\u00e4rgad f\u00e4rg m\u00e5ste definieras i ett separat avtal mellan deltagarna. <\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Det kan t.ex. ocks\u00e5 fungera med hj\u00e4lp av ett fysiskt referensprov eller en PDF\/X med en <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/cxf\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">CxF<\/a>\/X-4a-m\u00e4tning med spektralv\u00e4rden f\u00f6r enf\u00e4rgen. P\u00e5 samma s\u00e4tt kan man ocks\u00e5 definiera flera graderade f\u00e4rgtonv\u00e4rden, t.ex. 10%-graderingar. Men \u00e4ven h\u00e4r kvarstod os\u00e4kerheter, till exempel fr\u00e5gan om huruvida <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/color-de-las-joyas\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">fantasif\u00e4rgen<\/a> skulle \u00f6verf\u00f6ras fr\u00e5n ett vitt originalpapper till underlaget f\u00f6r den provtrycksprofil som skulle simuleras.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">F\u00f6r oss som provtryckstillverkare finns det d\u00e4rf\u00f6r m\u00e5nga utmaningar vid provtryckning av spotf\u00e4rger som inte \u00e4r definierade i standarder, eller bara \u00e4r otillr\u00e4ckligt definierade:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"translation-block\">Har vi hittat det <strong>korrekta LAB-v\u00e4rdet f\u00f6r kul\u00f6rnamnet<\/strong> f\u00f6r kul\u00f6ren?<\/li>\n\n\n\n<li class=\"translation-block\">\u00c4r <strong>pappersvitheten hos provstandarden<\/strong> identisk med eller \u00e5tminstone likadan som <strong>pappersvitheten hos den tryckta fl\u00e4kten<\/strong>?<\/li>\n\n\n\n<li><strong>Hur ser en 50% av en PANTONE spotf\u00e4rg ut?<\/strong> Vilken f\u00e4rg produceras om provtryckspapperets vita f\u00e4rg matchar fl\u00e4ktens vita f\u00e4rg? Och vilken f\u00e4rg blir det om provningsstandarden har definierat en annan pappersvit? Hur m\u00e5ste d\u00e5 50%-f\u00e4rgen justeras?<\/li>\n\n\n\n<li class=\"translation-block\">Vad h\u00e4nder n\u00e4r ett <strong>PANTONE solid colour-omr\u00e5de<\/strong> eller ett 50%-omr\u00e5de <strong>\u00f6vertrycks<\/strong> p\u00e5 en CMYK-bild? Vilken f\u00e4rg skapas?<\/li>\n\n\n\n<li>Vad h\u00e4nder om f\u00e4rgtillverkaren har justerat PANTONE-formuleringen f\u00f6r att b\u00e4ttre matcha f\u00e4rgen med en annan pappersvit? Hur kan jag simulera detta i provtrycket?<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Som leverant\u00f6r av korrekturtj\u00e4nster \u00e4r vi faktiskt ansvariga f\u00f6r korrekt referens av f\u00e4rger. Om vi f\u00e5r PDF-filer med PANTONE- eller HKS-f\u00e4rger anv\u00e4nder vi l\u00e4mpliga LAB-f\u00e4rgv\u00e4rden fr\u00e5n tillverkarens digitala databaser. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Men h\u00e4r m\u00e5ste vi vara f\u00f6rsiktiga igen, eftersom f\u00e4rgv\u00e4rdena i de digitala databaserna och f\u00e4rgfl\u00e4ktarna ofta inte st\u00e4mmer \u00f6verens. Som vi har visat i tidigare inl\u00e4gg kan avvikelser fr\u00e5n DeltaE00 p\u00e5 mer \u00e4n 8 l\u00e4tt hittas \u00e4ven i aktuella f\u00e4rgfl\u00e4ktar. Rabea Payson fr\u00e5n X-Rite\/PANTONE har illustrerat detta i en bild enligt nedan, och varnar f\u00f6r f\u00e4rgavvikelser p\u00e5 DeltaE 20:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/blog1.proofen.de\/wp-content\/uploads\/2024\/03\/how-pantone-fandecks-should-be-used-presentation.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"728\" src=\"https:\/\/blog1.proofen.de\/wp-content\/uploads\/2024\/03\/how-pantone-fandecks-should-be-used-presentation-1024x728.png\" alt=\"\" class=\"wp-image-5612\" srcset=\"https:\/\/blog.proofs.de\/wp-content\/uploads\/2024\/03\/how-pantone-fandecks-should-be-used-presentation-1024x728.png 1024w, https:\/\/blog.proofs.de\/wp-content\/uploads\/2024\/03\/how-pantone-fandecks-should-be-used-presentation-300x213.png 300w, https:\/\/blog.proofs.de\/wp-content\/uploads\/2024\/03\/how-pantone-fandecks-should-be-used-presentation-768x546.png 768w, https:\/\/blog.proofs.de\/wp-content\/uploads\/2024\/03\/how-pantone-fandecks-should-be-used-presentation-1536x1092.png 1536w, https:\/\/blog.proofs.de\/wp-content\/uploads\/2024\/03\/how-pantone-fandecks-should-be-used-presentation-2048x1456.png 2048w, https:\/\/blog.proofs.de\/wp-content\/uploads\/2024\/03\/how-pantone-fandecks-should-be-used-presentation-18x12.png 18w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"><\/a><\/figure>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Men vad \u00e4r den bindande spotf\u00e4rgen f\u00f6r korrekturet? \u00c4r det den tryckta spotf\u00e4rgen p\u00e5 f\u00e4rgfl\u00e4kten, som om jag skulle klippa ut den och klistra fast den p\u00e5 korrekturet? Eller provtrycker jag den f\u00e4rg som skulle skapas om den h\u00e4r spotf\u00e4rgen faktiskt trycks p\u00e5 det slutliga papperet? I <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/psd\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">PSD<\/a> finns tre id\u00e9er om detta.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Om ingen \u00f6verenskommelse har tr\u00e4ffats anv\u00e4nds (som standard) absolut reproduktion (utan n\u00e5gon substratjustering). <\/li>\n\n\n\n<li class=\"translation-block\">Om <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/cielab\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">CIELAB<\/a>-v\u00e4rden inte inneh\u00e5ller n\u00e5gon ytterligare information, b\u00f6r de tolkas som att de har h\u00e4rletts med M2 och vit bakgrund av kompatibilitetssk\u00e4l.<\/li>\n\n\n\n<li class=\"translation-block\">F\u00f6r odefinierade graderingar b\u00f6r ett linj\u00e4rt <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/sctv\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">SCTV<\/a>-beteende antas<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><a href=\"https:\/\/blog1.proofen.de\/wp-content\/uploads\/2024\/03\/proof_de_spotcolor_tints_for_measurement-scaled.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"795\" src=\"https:\/\/blog1.proofen.de\/wp-content\/uploads\/2024\/03\/proof_de_spotcolor_tints_for_measurement-1024x795.jpg\" alt=\"Proof.de: Spotcolourf\u00e4rger f\u00f6r m\u00e4tning. En typisk testform f\u00f6r offsettryck i 5% tonv\u00e4rdesgraderingar, med f\u00e4rgupptagningsremsor upptill och nedtill och tv\u00e5 omr\u00e5den roterade 180\u00b0 f\u00f6r att kunna ber\u00e4kna medelv\u00e4rdet av flera m\u00e4tningar fr\u00e5n flera omr\u00e5den.\" class=\"wp-image-5638\" style=\"width:532px;height:auto\" srcset=\"https:\/\/blog.proofs.de\/wp-content\/uploads\/2024\/03\/proof_de_spotcolor_tints_for_measurement-1024x795.jpg 1024w, https:\/\/blog.proofs.de\/wp-content\/uploads\/2024\/03\/proof_de_spotcolor_tints_for_measurement-300x233.jpg 300w, https:\/\/blog.proofs.de\/wp-content\/uploads\/2024\/03\/proof_de_spotcolor_tints_for_measurement-768x596.jpg 768w, https:\/\/blog.proofs.de\/wp-content\/uploads\/2024\/03\/proof_de_spotcolor_tints_for_measurement-1536x1192.jpg 1536w, https:\/\/blog.proofs.de\/wp-content\/uploads\/2024\/03\/proof_de_spotcolor_tints_for_measurement-2048x1590.jpg 2048w, https:\/\/blog.proofs.de\/wp-content\/uploads\/2024\/03\/proof_de_spotcolor_tints_for_measurement-15x12.jpg 15w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"><\/a><figcaption class=\"wp-element-caption translation-block\"><em>Proof.de: Spotcolourf\u00e4rger f\u00f6r m\u00e4tning. En typisk testblankett f\u00f6r <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/impresion-offset\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">offsettryck<\/a> i 5% tonv\u00e4rdesgraderingar, med f\u00e4rgupptagningsremsor upptill och nedtill och tv\u00e5 omr\u00e5den roterade 180\u00b0 f\u00f6r att kunna ber\u00e4kna medelv\u00e4rdet av flera m\u00e4tningar fr\u00e5n flera zoner.<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">\u00c4r tonv\u00e4rdesgraderingar av en spotf\u00e4rg i korrekturf\u00e4rgen bindande?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">L\u00e5t oss g\u00e5 tillbaka till v\u00e5r tredje fr\u00e5ga ovan: <strong>Hur ser en 50% av en PANTONE spotf\u00e4rg ut?<\/strong> <\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Tonv\u00e4rden f\u00f6r spotf\u00e4rger kan f\u00f6r n\u00e4rvarande inte \u00e5terges p\u00e5 ett tillf\u00f6rlitligt s\u00e4tt om det inte finns n\u00e5gon detaljerad information om tonv\u00e4rdesgraderingarna. Problemen med pappersvita \u00e4r bara en sak, men h\u00e4r uppst\u00e5r ocks\u00e5 andra effekter: Vid offsettryck uppst\u00e5r h\u00e4r en m\u00e4ngd olika avvikelser i en m\u00e4ngd olika riktningar. Avvikelser p\u00e5 DeltaE 10 uppst\u00e5r snabbt mellan standard AM-raster och frekvensmodulerade raster f\u00f6r samma spotf\u00e4rg. Och pappersytan har ocks\u00e5 ett stort inflytande, ju gr\u00f6vre desto mer kritiskt, desto mer <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/oba\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">OBA<\/a>, desto sv\u00e5rare.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">S\u00e5 l\u00e4nge inga bindande m\u00e4tdata f\u00f6r de enskilda \"nyanserna\", dvs. procentuella graderingar, finns tillg\u00e4ngliga f\u00f6r en spotf\u00e4rg i en CxF-fil, kan till exempel inget bindande bevis f\u00f6r spotf\u00e4rgsgraderingar g\u00f6ras p\u00e5 grund av olika ber\u00e4kningsmodeller f\u00f6r att f\u00f6ruts\u00e4ga dessa graderingar, utan alltid bara en \"sofisti<a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/cat\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">cat<\/a>erad gissning\", kan korrekturl\u00e4sningssystemet i b\u00e4sta fall g\u00f6ra en \"bra gissning\", men aldrig en bindande representation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">B\u00f6r reproduktionen av spotf\u00e4rgstoner definieras i en standard?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Det var en intressant diskussion om detta \u00e4mne i Fogra:s arbetsgrupp f\u00f6r digitaltryck. Den f\u00f6rde samman ett brett spektrum av olika r\u00f6ster och \u00e5sikter, av vilka jag skulle vilja sammanfatta n\u00e5gra kortfattat. Svaren kan grovt kategoriseras i tre tendenser:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Nej, definitionen skulle bli f\u00f6r komplex. Formgivare beh\u00f6ver \u00e4nd\u00e5 inte tonala v\u00e4rden, eftersom de oftast bara arbetar med fulltonen. <\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\"Spotf\u00e4rger v\u00e4ljs vanligtvis som en solid f\u00e4rg fr\u00e5n en fl\u00e4kt och anv\u00e4nds i logotyper. Eftersom endast enf\u00e4rgen kan ses i PANTONE-fl\u00e4kten anv\u00e4nds endast enf\u00e4rgen i logotyper och varum\u00e4rken.\"<\/li>\n\n\n\n<li>\"Om tonala v\u00e4rden anv\u00e4nds \u00e4r de i b\u00e4sta fall dekorativa och \u00e4r d\u00e4rf\u00f6r inte v\u00e4rda anstr\u00e4ngningen att sammanfattas i en standard, som d\u00e5 bara skulle vara bindande i genomsnitt. Om formgivaren inte anv\u00e4nder den fasta PANTONE-tonen 100% \"missbrukar\" han faktiskt PANTONE-systemet, vilket inte kan vara ett problem f\u00f6r tryckerier och leverant\u00f6rer av korrekturtj\u00e4nster.\"<\/li>\n\n\n\n<li class=\"translation-block\">\"Redan framst\u00e4llningen av spotf\u00e4rger via kontraktsprover \u00e4r komplex och kr\u00e4ver specialiserad programvara<a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/ean\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">ean<\/a>. F\u00f6r att uppn\u00e5 en korrekt simulering av ett PANTONE-tonv\u00e4rde m\u00e5ste man ta h\u00e4nsyn till <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/aumento-del-valor-tonal\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">tonv\u00e4rdes\u00f6kningen<\/a> (SCTV), eftersom en f\u00e4rgsimulering utan punktf\u00f6rst\u00e4rkning skulle vara missvisande. Men detta \u00e4r knappast realiserbart senast p\u00e5 det slutliga tryckmaterialet. \"<\/li>\n\n\n\n<li>\"Vad ska anv\u00e4ndarna j\u00e4mf\u00f6ra den tryckta f\u00e4rgen med? Det finns ingen referens, s\u00e5 hur kan man utveckla en metod som l\u00f6ser det h\u00e4r problemet?\"<\/li>\n\n\n\n<li class=\"translation-block\">\"Om anv\u00e4ndarna vill ha PANTONE-f\u00e4rger b\u00f6r de be X-Rite om en PANTONE-f\u00e4rgfl\u00e4kt med referensbibliotek. Jag \u00e4r s\u00e4ker p\u00e5 att X-Rite g\u00e4rna tj\u00e4nar \u00e4nnu mer pengar p\u00e5 PANTONE.\"<br>En annan skribent skrev: \"Vi fr\u00e5gade Pantone om detta - de s\u00e5g inget behov, deras f\u00e4rgguider var bara guider och det var sv\u00e5rt att trycka flera f\u00e4rger med r\u00e4tt <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/tvi\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">TVI<\/a>. Att ber\u00e4kna och publicera v\u00e4rden med SCTV var inte heller intressant f\u00f6r PANTONE vid den tiden.\"<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Nej, varum\u00e4rkes\u00e4gare beh\u00f6ver inte detta, eftersom de redan har definierat, m\u00e4tt och anpassat sin varum\u00e4rkesf\u00e4rg perfekt till trycksubstraten. Varum\u00e4rkesartiklar skulle d\u00e4rf\u00f6r alltid vara b\u00e4ttre \u00e4n standarden och beh\u00f6ver d\u00e4rf\u00f6r inte detta.<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\"Varum\u00e4rkes\u00e4gare har vanligtvis varje tryckprocess, varje substrat och varje f\u00e4rg exakt definierad f\u00f6r sina varum\u00e4rkesf\u00e4rgprodukter och arbetar med speciella inst\u00e4llningar, f\u00e4rgupps\u00e4ttningar och f\u00e4rgformuleringar som \u00e4nd\u00e5 \u00e4r perfekt anpassade till deras speciella f\u00e4rg. De skulle d\u00e4rf\u00f6r inte arbeta enligt en standard, eftersom de k\u00e4nner till och kan kontrollera sin f\u00e4rg \u00e4nnu b\u00e4ttre, s\u00e5 en standard skulle snarare vara ett steg bak\u00e5t f\u00f6r varum\u00e4rkes\u00e4garna.\"<\/li>\n\n\n\n<li>\"Det finns ingen allm\u00e4n \"referens\" som de stora akt\u00f6rerna p\u00e5 marknaden skulle vilja ha. De har alla sina egna referenser och kommer aldrig att acceptera ett bevis som vill vara \"korrekt\" med ett DeltaE p\u00e5 3.\"<\/li>\n\n\n\n<li class=\"translation-block\">\"M\u00e5ste vi utveckla standarder och metoder f\u00f6r allt som anv\u00e4ndarna g\u00f6r? Formgivare tror att en PANTONE-f\u00e4rg \u00e4r en referens, n\u00e4r den inte \u00e4r det. Ett digitalt bibliotek med referensv\u00e4rden kommer inte att l\u00f6sa det h\u00e4r problemet eftersom ingen egentligen vet hur man anv\u00e4nder ett digitalt bibliotek. N\u00e4r en anv\u00e4ndare \u00e4ndrar opaciteten eller transparensen f\u00f6r en Pantone-f\u00e4rg i InDesign avviker det fr\u00e5n det redan bristf\u00e4lliga spot<a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/sistema-de-colores\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">f\u00e4rgsystemet<\/a> och g\u00f6r det \u00e4nnu mindre anv\u00e4ndbart.\"<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Ja, alla tillverkare av korrekturprogram eller softproof-l\u00f6sningar ber\u00e4knar \u00e4nd\u00e5 tonv\u00e4rden f\u00f6r spotf\u00e4rger, s\u00e5 en standardiserad representation av tonv\u00e4rdena f\u00f6r spotf\u00e4rger skulle vara meningsfull f\u00f6r att harmonisera representationen av korrektur och softproof.<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"translation-block\">\"F\u00f6r tj\u00e4nsteleverant\u00f6rer och programvarutillverkare inom sektorn f\u00f6r provtryck och <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/softproof\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">soft proof<\/a> skulle en specifikation vara meningsfull, eftersom alla f\u00f6r n\u00e4rvarande f\u00f6r in sina egna id\u00e9er i sin programvara och provtryck fr\u00e5n olika programvaror <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/rip\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">RIP<\/a> fr\u00e5n samma PDF-fil med spotf\u00e4rger kan se helt olika ut. Ett harmoniserat provtryck skulle vara absolut \u00f6nskv\u00e4rt f\u00f6r formgivare, provtryckare och mindre tryckerier.\"<\/li>\n\n\n\n<li class=\"translation-block\">Eftersom det inte finns n\u00e5gon referens kan vilken programvara som helst g\u00f6ra anspr\u00e5k p\u00e5 att vara den \"r\u00e4tta\". Vi b\u00f6r d\u00e4rf\u00f6r utv\u00e4rdera f\u00f6r vilka anv\u00e4ndningsfall den absoluta och f\u00f6r vilka den medieanpassade <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/ubicacion-del-color\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">f\u00e4rgplatsen<\/a> \u00e4r b\u00e4ttre och vad som \u00e4r den b\u00e4sta metoden f\u00f6r interpolering baserat p\u00e5 dessa v\u00e4rden.\"<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Andreas Kraushaar fr\u00e5n Fogra skulle ocks\u00e5 vilja starta ett forskningsprojekt i \u00e4mnet baserat p\u00e5 \u00e5terkopplingen. Han sammanfattar diskussionen ur Fogra:s synvinkel p\u00e5 f\u00f6ljande s\u00e4tt:<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">\"Det praktiska problemet \u00e4r att man k\u00e4nner till en specifik kul\u00f6r och dess CIELAB-v\u00e4rden och <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/espectro\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">spektrum<\/a> n\u00e4r den anv\u00e4nds som enf\u00e4rgad. Men inte mer \u00e4n s\u00e5. Designers utkast inneh\u00e5ller ofta nyanser av denna solida f\u00e4rg och fr\u00e5gan \u00e4r: hur kan denna f\u00e4rg p\u00e5 ett tillf\u00f6rlitligt s\u00e4tt <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/pruebe\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">proofas<\/a> och reproduceras? Hittills har ingen kunnat l\u00f6sa detta problem exakt. Men om vi till\u00e4mpar f\u00e4rg- och tryckkunskap och moderna tonv\u00e4rdesmetoder (t.ex. SCTV) kan vi kanske rekommendera en metod som kan anv\u00e4ndas b\u00e5de f\u00f6r RIP:er f\u00f6r att provtrycka s\u00e5dana nyanser och f\u00f6r tryckare f\u00f6r att till\u00e4mpa en TVI-kurva eller RIP-korrigering. Syftet skulle vara att f\u00f6resl\u00e5 en s\u00e5dan metod f\u00f6r att underl\u00e4tta f\u00e4rgkommunikation. Naturligtvis beh\u00f6ver ingen f\u00f6lja den utan kan g\u00f6ra vad de vill. Standardisering \u00e4r <a href=\"https:\/\/blog1.proofen.de\/es\/lexico-2\/led\/\" target=\"_self\" class=\"encyclopedia tooltipstered\">led<\/a> bara ett erbjudande fr\u00e5n Fogra till branschen om en f\u00f6ruts\u00e4gbar tryckproduktion. F\u00f6r spotf\u00e4rger \u00e4r dock en s\u00e5dan standardiserad tryckproduktion f\u00f6r n\u00e4rvarande inte m\u00f6jlig.\"<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Under de senaste veckorna har det f\u00f6rts l\u00e5nga diskussioner p\u00e5 Fogra:s e-postlista f\u00f6r digitaltryck om huruvida ett forskningsprojekt b\u00f6r startas f\u00f6r att definiera standardiserade tonv\u00e4rdesgraderingar f\u00f6r spotf\u00e4rger. Vad handlar det h\u00e4r om? N\u00e4r det g\u00e4ller CMYK- och sjuf\u00e4rgstryck \u00e4r definitionen av tydliga, tryckbara och bevisbara standarder v\u00e4letablerad och har testats i praktiken. Om papperet eller pappersklassen \u00e4r k\u00e4nd och definierad, en m\u00e4tstandard som M0\/M1\/M2 har fastst\u00e4llts och inneh\u00e5llet av optiska vitmedel \u00e4r k\u00e4nt, kan en enast\u00e5ende exakt representation av det efterf\u00f6ljande trycket uppn\u00e5s i provtrycket. Den ... <\/p>\n<p class=\"read-more-container\"><a title=\"Exakt korrektur av tonalv\u00e4rdena f\u00f6r spotf\u00e4rger\" class=\"read-more button\" href=\"https:\/\/blog.proofs.de\/sv\/tonwerte-von-sonderfarben-praezise-proofen\/#more-5609\" aria-label=\"L\u00e5t oss exakt bevisa tonalv\u00e4rdena f\u00f6r spotf\u00e4rger\">L\u00e4s mer p\u00e5<\/a><\/p>","protected":false},"author":2,"featured_media":5638,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"inline_featured_image":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[526,1379,1380,1383,528,1384,1382,673,1377,1378,1381],"class_list":["post-5609","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-allgemein","tag-pantone","tag-pantone-tint","tag-pantone-tints","tag-pantone-tonwerte","tag-sonderfarbe","tag-sonderfarben-proofen","tag-sonderfarbtonwerte","tag-spotfarbe","tag-spotfarben","tag-tint","tag-tonwertabstufungen","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50","no-featured-image-padding","resize-featured-image"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Tonwertabstufungen von 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