Digital BW, The Print

In December I printed a few 16x20 colour images on canvas. I used an Epson 4880 with all Epson colours and MIS blacks.

One of the prints was off a bit from the colour balance I wanted, so I set it aside in my darkroom, draped face down over a 35mm Saunder 4500 negative carrier that was on top of a few boxes of 8x10 paper.  I did not disturb it until yesterday, at which point I saw what looked like mildly viscous patches on the black surface of the negative carrier. They looked a bit like oil or glycerol. These deposits were not there when I set the print on the carrier.  The patches cleaned off easily with Windex.

Does anyone know what the substance was?  I was surprised that it had apparently moved from the ink to the metal carrier, and even more surprised that it still there four months after the print �dried�.

Myron

On 15-04-14 20:03, Paul Roark wrote:
> In addition to the glycol that is usually said to be the source of the
> out-gassing, almost all inks also have glycerol in them.  It is even slower
> to evaporate, if it ever does.  It's virtually inert and usually just stays
> in the coating or matte paper (more room and works better).  If there is
> physical contact, I can imagine some transfer could take place.
>
> Paul
> www.PaulRoark.com

In frames it would not surprise me at all if glycerol is carried over by 
other ink media components that evaporate faster and then condensate on 
the cooler glass. The more when enough light is there to heat the print. 
Most likely the effects of static electricity etc add to that effect. It 
could be a nice project for a PhD to find all the details of that transfer.

-- 
Met vriendelijke groet, Ernst

http://www.pigment-print.com/spectralplots/spectrumviz_1.htm
January 2014, 600+ inkjet media white spectral plots.

On 16-04-14 02:02, mrjimbo2 wrote:
> Just a few thoughts on this if I may... I used to do many art shows every year.. Out gassing used to make me nuts.. I had a travel kit that would allow me to dis-assemble and re-assemble framed pieces with me all the time. Typically the kiss of death was when the piece got heated up and it was especially tuff if the piece had a lot of dark colors that would absorb the heat and hold it..
>
> So I also shot and processed film here and have a great Arkay stainless steel vertical dryer.. I started processing prints thru it and it honestly really made a difference.. It has both blower and a heat system and vents to outside the cabinet. The air is moving in this thing all the time.....you can still put the piece in enough heat and it will always make it outgas some more.. seriously however I feel that this maybe solved 85/95 % of my issues. I can stand up a rolled 60 inch print in this thing by removing the interior wire shelves.. Their efficient, you can "overdry" a piece pretty quickly but of course they will settle in at the local humidity level when the dust settles..
>
> So no it doesn't totally solve the problem but it the closest thing I've found so far.. My guess is these would be cost effective now as not much film is getting done these days. I would honestly suggest looking into one if the shoe fits..
>
> jimbo

Secondhand graphic equipment is another source for drying cabinets. Like 
the ones used to dry silkscreen emulsions and offset plates. They are 
usually horizontal which may influence the drying for RC papers. If 
large enough they are usable for canvas varnishes etc too. I have one 
for silkscreen frames. Most of the time I go for the drying tunnel 
though as it has air jets that give a pulsed airflow on the surface and 
the transport band can go really slow.

-- 
Met vriendelijke groet, Ernst

http://www.pigment-print.com/spectralplots/spectrumviz_1.htm
January 2014, 600+ inkjet media white spectral plots.

I admit to being relatively naïve when the subject of digital print out gassing is discussed.

 

So, a few questions:

 

If one simply leaves a completed ink jet print open to the air for a week before framing would a good deal of the out gassing be eliminated?  To be slightly more "aggressive"- if one leaves the print on a table and allows a fan to blow air over the surface for a day or two will the out gassing be eliminated?  Also, many of us take precautions not to place our digital or analog prints in direct sunlight. So,  if a digital ink jet print is thoroughly dry and t "ventilated" for a day or two, and then when framed is kept out of direct sunlight, will out gassing still occur?

 

Do all digital ink jet inks evidence the same problems with out gassing?  Are prints made with some inks more likely to "out gas"?

 

Elliot

 

From: DigitalBlackandWhiteThePrint@yahoogroups.com [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of goch@...
Sent: Wednesday, April 16, 2014 10:31 AM
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: Re: [Digital BW] condensation from print

 

  

What temperature would be effective and safe for most inkjet media?  This seems like it could be a do-it-yourself project. Mild heat and air flow are not difficult to arrange.

I just completed my own search.  Thanks anyway.

From: DigitalBlackandWhiteThePrint@yahoogroups.com [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of Elliot Puritz
Sent: Wednesday, April 16, 2014 11:00 AM
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: RE: [Digital BW] condensation from print

 

  

I admit to being relatively naïve when the subject of digital print out gassing is discussed.

 

So, a few questions:

 

If one simply leaves a completed ink jet print open to the air for a week before framing would a good deal of the out gassing be eliminated?  To be slightly more "aggressive"- if one leaves the print on a table and allows a fan to blow air over the surface for a day or two will the out gassing be eliminated?  Also, many of us take precautions not to place our digital or analog prints in direct sunlight. So,  if a digital ink jet print is thoroughly dry and t "ventilated" for a day or two, and then when framed is kept out of direct sunlight, will out gassing still occur?

 

Do all digital ink jet inks evidence the same problems with out gassing?  Are prints made with some inks more likely to "out gas"?

 

Elliot

 

From: DigitalBlackandWhiteThePrint@yahoogroups.com [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of goch@...
Sent: Wednesday, April 16, 2014 10:31 AM
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: Re: [Digital BW] condensation from print

 

  

What temperature would be effective and safe for most inkjet media?  This seems like it could be a do-it-yourself project. Mild heat and air flow are not difficult to arrange.

It was brought to my attention that my reply below might have been misinterpreted as being disrespectful and ungrateful for those who have posted about the subject previously.

 

If so, I want to issues a sincere and appropriate apology to any that I might have inadvertently offended.  My only reason in posting the information was to spare others from having to reiterate information that might have been available elsewhere.

 

Once again, to any of the experts who take the time and effort to post information here and to whom my response might been unintentionally incorrect, please accept my sincerest apologies.

 

Elliot

From: DigitalBlackandWhiteThePrint@yahoogroups.com [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of Elliot Puritz
Sent: Wednesday, April 16, 2014 11:43 AM
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: RE: [Digital BW] condensation from print

 

  

I just completed my own search.  Thanks anyway.

 

From: DigitalBlackandWhiteThePrint@yahoogroups.com [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of Elliot Puritz
Sent: Wednesday, April 16, 2014 11:00 AM
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: RE: [Digital BW] condensation from print

 

  

I admit to being relatively naïve when the subject of digital print out gassing is discussed.

 

So, a few questions:

 

If one simply leaves a completed ink jet print open to the air for a week before framing would a good deal of the out gassing be eliminated?  To be slightly more "aggressive"- if one leaves the print on a table and allows a fan to blow air over the surface for a day or two will the out gassing be eliminated?  Also, many of us take precautions not to place our digital or analog prints in direct sunlight. So,  if a digital ink jet print is thoroughly dry and t "ventilated" for a day or two, and then when framed is kept out of direct sunlight, will out gassing still occur?

 

Do all digital ink jet inks evidence the same problems with out gassing?  Are prints made with some inks more likely to "out gas"?

 

Elliot

 

From: DigitalBlackandWhiteThePrint@yahoogroups.com [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of goch@...
Sent: Wednesday, April 16, 2014 10:31 AM
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: Re: [Digital BW] condensation from print

 

  

What temperature would be effective and safe for most inkjet media?  This seems like it could be a do-it-yourself project. Mild heat and air flow are not difficult to arrange.