Re: Proofing inks
Re: Proofing inks
- Subject: Re: Proofing inks
- From: "Walter Zacharias" <email@hidden>
- Date: Thu, 30 Oct 2003 13:59:39 -0600
Roger asked:
"What kind of DeltaEab number are you talking?"
Max deltaE CMC: starts around 2.5 (day after profiling), then creeps up to 4-4.5.
Ave deltaE CMC: around 1 (as high as 1.4)
Max deltaE Lab 1976: about 4.5.
Ave deltaE Lab 1976: around 1.5
(This is on 373 patches (Monaco target) imaged daily. All readings are compared to the target that was imaged immediately after profiling.)
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>> Roger Breton <email@hidden> 10/30/03 01:23PM >>>
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We are using the C4930A series inks from HP and Heidelberg's Saphira Proofing
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Paper Premium Semi Matte stock.
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I'm finding a good deal of day-to-day colour fluctuation. Has anyone tested
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other or even UV inks? Would the use of UV inks produce more consistent
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results?
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>
Walter Zacharias
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