Duratrans - was: Re: Pictorico Large format Discontinued

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 11:26:14 2004