Kuşelenmiş ve kuşelenmemiş kağıtlar üzerine yapılan ofset baskılarda kuruma prosesi sırasındaki renk değişimlerinin saptanması
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Dosyalar
Tarih
2015
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
İstanbul Ticaret Üniversitesi
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Bu çalışmada kuşelenmiş ve kuşelenmemiş kağıtlar üzerine ofset baskı tekniği ile baskılar yapılmış, baskıların kuruma sürecindeki zamana bağlı renk değişimleri ölçülüp belirlenmiştir. Birinci test baskısında kaplanmamış ve 120 gr/m2 1. hamur diye tanımlanan kağıtlara emilerek kuruyan yağ bazlı mürekkepler kullanılarak baskılar yapılmış, baskılar belirlenen zaman aralıklarında spektrofotometre ile ölçülmüş, elde edilen reflektans veriler CIELAB renk tanımlama evrenine çevrilerek, basılan renklerdeki zamana bağlı değişimleri tespit edilmiştir. İkinci test baskısında 135 gr/m2 Mat Kuşe üzerine infrared yöntemi ile kuruyan mürekkep kullanılarak çalışılmış ve bunlar birinci test baskıları ile aynı şekilde spektrofotometre ile ölçülerek renk değişimleri belirlenmiştir. 1. hamur kağıtlarda mürekkebin yerleşmesi mat kuşe kağıtlara göre daha hızlı olmuş ve renk sapmaları üçte bir oranında daha düşük çıkmıştır. Her iki kağıt türü içinde ideal kuruma süresi ve renk değişimlerinin sabitlenmesi için 24 saat geçmesi gerektiği belirlenmiştir.
In this study, prints were made on coated and uncoated papers with the offset printing technique and the time dependent color changes in the drying stage of the prints were measured and established. In the first test print, prints were made on the 120 g/m2 uncoated papers using oil-based inks that dry through absorption; the prints were measured with spectrophotometer at predetermined time intervals; the obtained reflectance data were converted into the CIELAB color definition universe; and the time-dependent color changes were established. In the second test print, study was conducted on 135 g/m2 matte coated paper using drying ink with infrared method and these were measured with spectrophotometer in the same way as the first test prints to determine the color changes. In the high-degree paper pulps, the settlement of the ink was faster compared to the matte coated paper and color deviations were found to be one third less. It was determined that 24 hours should pass for ideal drying period and for the color changes to be fixed for both paper types.
In this study, prints were made on coated and uncoated papers with the offset printing technique and the time dependent color changes in the drying stage of the prints were measured and established. In the first test print, prints were made on the 120 g/m2 uncoated papers using oil-based inks that dry through absorption; the prints were measured with spectrophotometer at predetermined time intervals; the obtained reflectance data were converted into the CIELAB color definition universe; and the time-dependent color changes were established. In the second test print, study was conducted on 135 g/m2 matte coated paper using drying ink with infrared method and these were measured with spectrophotometer in the same way as the first test prints to determine the color changes. In the high-degree paper pulps, the settlement of the ink was faster compared to the matte coated paper and color deviations were found to be one third less. It was determined that 24 hours should pass for ideal drying period and for the color changes to be fixed for both paper types.
Açıklama
Anahtar Kelimeler
Ofset Baskı, Kağıt-Mürekkep-Renk, DeltaE, CIELab, ICC Profil, Offset Lithographic Printing, Paper-Ink-Colour, DeltaE, CIELab, ICC Profile
Kaynak
İstanbul Ticaret Üniversitesi Fen Bilimleri Dergisi
WoS Q Değeri
Scopus Q Değeri
Cilt
14
Sayı
27
