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- W851496723 abstract "A color separation technique known as Gray Component Replacement, or GCR has been an option available to high-end drum scanner operators for the past eight years. Recently, GCR has been made available by lower-end color system vendors as well. GCR consists of removing the least predominant process color ink in a unit area, reducing the remaining colored inks by the same amount and replacing the gray component of the color with black ink. One of the reported benefits of the GCR technique is that more consistency can be realized during a pressrun. If this is in fact true, the first publication printers who would surely utilize the technique would be newspapers. The problem of consistency is particularly acute for newspapers. There are a number of reasons for this, but the primary ones relate to the types ofmaterials used. Newspapers use the cheapest paper and ink and in many cases, they print with old or poorly maintained presses. They would surely welcome any process that offered better reproductive quality and more consistency, provided the investment was justifiable. Since their present color separation systems allow for the use ofGCR in the majority of cases, its potential in the area of newspaper printing was investigated in this study. One factor determining consistency during a pressrun is the control of ink film thickness. As ink film thickness fluctuates, color variation takes place. This study compared the amount of color variation realized for a conventional separation and GCR separations as ink film thickness was varied on press. A separation was made conventionally and with five levels ofGCR (however only 40% and 80% could be used for analysis). A Macbeth color checker, comprised of twenty-four color patches, was used as" @default.
- W851496723 created "2016-06-24" @default.
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- W851496723 date "1993-01-01" @default.
- W851496723 modified "2023-09-27" @default.
- W851496723 title "The Effects of fluctuations in solid ink density on color variation for conventional and grey component replacement separations when printing process color on newsprint" @default.
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