Re: Pigmented inks and poly plates

hi Marek,

My apologies for misunderstanding. I have no doubt one can use color inkjet
effectively...all one has to do is look at the faux pyro school of inkjet neg
printing. I prefer believing my eyes and brain (wetware) over my software and
hardware, however, at least at this stage in my work.

My sense is that palladium is going to produce different results than polymer
plates, in any case. For one thing, I'm using a continuous tone screen to
presensitize the plate so it holds ink better. For another, poly plates respond
to a slightly different part of the UV spectrum than palladium. The results I
got from trying color vs. black only pigments were disparate enough for me.

Film seems different enough from inkjet to try (at least for $36), but maybe
it's folly as far as the poly plates go.

Anyone out there print polymer plates using color transparencies?

Jon

mmatusz@pdq.net wrote:

> Jon,
> What I meant was pigmented color inks. I have an Epson 2200 and print with
> all colors. At least I think that the printer uses all the inks as all the
> cartridges get low at about the same rate. My medium of choice is
> palladium for now and I can not praise enough the didital negatives made
> on this printer. Absolutely smooth tonal gradations (my negatives are 16
> bit). From pure black to most delicate highlights and all in between. It
> took me some time to come up with a correct curve (or actually learn about
> curves as I am new to digital), but now I can modify it to suit my
> negative needs in a systematic way in no time.
> This starts to sound like the "gum war". Two people, same equipment,
> totaly different results.
> Marek
>
>>Hi Marek,
>>
>>Read my statement again. 'colored pigmented' is the key. Colored inks
>>don't
>>block light the same way black does. With poly plates, when I printed a
>>'black
>>and white' transparency using *colored* inks, the inkjet printer uses a
>>combination of colors to create grey, which works fine for reflected
>>light, but
>>transmitted UV light, which is what I use to expose the plates, behaves
>>very
>>differently. When I print the same transparency using black only, greys
>>are
>>generated by changing the size and distribution of a pure black dot, not
>>by
>>mixing colors. The latter is far less predictable and yields a much
>>different
>>distribution of density than what the transparency looks like to the naked
>>eye.
>>
>>Duratrans, being film-based color, as Craig mentioned, may behave
>>differently,
>>so I'm going to give it a try. A service bureau in Denver has offered me
>>a
>>half-price deal to run some tests.
>>
>>Jon
>>
>>mmatusz@pdq.net wrote:
>>
>>
>>>Jon
>>>I am surprized by your statement that you could not get pigmented inks
>>>to
>>>work for you. What kind of negative is required for your process and
>>>what
>>>was the "disaster".
>>>Marek M
>>>
>>>
>>>
>>>>You mentioned Dura-Trans...I was talking to a guy today about using it
>>>>for
>>>>transparencies in polymer photogravure. Neither of us were sure it
>>>>would
>>>>work well since Duratrans is a color process. Generally my
>>>>transparencies
>>>>have been inkjet using only black pigmented ink or imagesetter output.
>>>>My
>>>>experiments using colored pigmented inkjet output have been disasterous.
>>>>You say you use DuraTrans though. Should I gamble the $35 and try it?
>>>>
>>>>Jon
>>>>
>>>>On Fri, 7 May 2004, Craig Zammiello wrote:
>>>>
>>>>
>>>>
>>>>>Welcome to the wonderful world of corporate biz.
>>>>>Bottom line is the bottom line... companies are not going to produce a
>>>>>product for a small amount of profit. Period.
>>>>>I have gone mad for the last 25 years trying to keep up and substitute
>>>>>materials for photogravure. Man I'm tired of it!
>>>>>Thank god for Durst Lambda outputs and Dura-Trans film!
>>>>>Craig Z.
>>>>>
>>>>>----- Original Message -----
>>>>>From: "Jon Lybrook" <jon@terabear.com>
>>>>>To: <alt-photo-process-l@sask.usask.ca>
>>>>>Sent: Thursday, May 06, 2004 7:45 PM
>>>>>Subject: Pictorico Large format Discontinued
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>>Maybe I missed the thread, but I just called Pictorico and found they
>>>>>>discontinued their large format OHP film! I'm considering purchasing
>>>>>
>>>>>the
>>>>>Epson
>>>>>
>>>>>
>>>>>>7600, but wanted to confirm how much the Pictorico media for that
>>>>>
>>>>>would
>>>>>cost.
>>>>>
>>>>>
>>>>>>Turns out we can't get it anymore.
>>>>>>
>>>>>>I then called photo warehouse and found they have media that will work
>>>>>
>>>>>with the
>>>>>
>>>>>
>>>>>>7600. Has anyone tried the Photo Warehouse stock in a large format
>>>>>
>>>>>Epson
>>>>>printer?
>>>>>
>>>>>
>>>>>>Jon
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>
>>
>
>
Received on Fri May 7 14:19:14 2004