Magenta ink on a komori press

[jamie hulse]

Does any body know if magenta ink will print ( redder) on a matt stock as opposed to a gloss?

 

[kbarz]

magenta ink is a cold looking red even on gloss stock, to put it on matt will make it even colder looking. what i mean by cold is it has a blue look to it.. to warm the magenta up or to make it redder as you are asking, if at all possible you might want to use pms color. and if you cant i have mixed process yello 1/4 ounce per pound of magenta to swing the magenta to that redder or warmer side that you are not getting from straight magenta good luck kbarz

 

[D Ink Man]

kbarz?

kbarz?

How about adding warm red rather than yellow? The yellow will dirty the shade more versus the warm red, which could produce undesirable process builds and ability to match proofs. The warm red (red lake C) at the same amount, 1.5%, will keep you cleaner for process building, while still getting that warming effect. Regards. D

 

[fiatlux]

Alchemy is alive and well. Discussing color this way reminds me of Gordo's take on formulating ink colors here:

http://printplanet.com/forums/re-print/22972-recipe

Life imitates art! LOL

fl

 

[kbarz]

d ink man.. very well put ,and have also done that over the years ,very good suggestion, getting the job done without reinventing the wheel.. kbarz

 

[madjock]

If you want it to look brighter then use Rhodamine Red, also known as bright Magenta, this also works very well on uncoated stock, makes the images look much cleaner than when using Magenta.

 

[D Ink Man]

I want to change a statement I made to kbarz. He is correct, the yellow does work, but will make it a little dirtier in shade as said. If you want to use Warm Red, you would approximately need to at least double the amount, 3%, to have near the same warming effect on ink shade as the 1.5% yellow. Also, with almost everyone aqueous coating, it would be suggested to use an imitation warm red (not red lake C) to prevent burnout or possible color shift from the coats. Usually the imitation warm red uses pigments in the Naphthol family. Thanks kbarz.

madjock, I also like your idea about adding rhodamine red. This will produce a cleaner as you said, however bluer shaded magenta in process builds. Most of the European and Oriental countrys' ink entities come standardily equipped with a blue shade. In the United States inks that are manufactured there, the magentas tend to be somewhat warmer as standard products. This is normally due to the resination of the pigment vs. non resination and also because of dry pigment ink formulations versus flushed colorants used quite extensively in the US. D

 

[Treg]

Paper whiteness could be a factor in achieving the red you're looking for....test a few sheets.

We have substituted rhodamine for magenta on a few jobs to get a pms build, works great but can get you into trouble with fleshtones if you push things.