View Full Version : Dust on AZO

Michael Pry
8-Jun-2002, 08:42
I have been really getting into table top work doing various flowers with 8x10 u sing an all black background. I am still somewhat new to LF but the results have been the best so far. I couldn't be any more pleased with them after stumbling around for a couple years and then finally coming up with a repeatable system. O n AZO developed in Michael Smith's amidol formula these prints just glow. The do wnside is that after I dry them there is a dust that is actually attached to the face of the paper that is stuck there. I tried a very, very soft bristle brush but no good..doesn't come off. When I increased the pressure it scratches the pa per. The black background really shows the dust. I dry them on fiberglass screen s that I meticuously washed and rinsed. I don't have a "level 5" clean room in m y house but have tried different areas and still that #$%@# dust!! It is really frustrating after a very long often discouraging journey to have finally arrived at a point to where things are actually working on a repeatable basis only to h ave a problem like this. I really like the black background but the dust...arrgg ghhhhh. Can anyone please help me? Thank you in advance fer any info.

robert lyons
8-Jun-2002, 12:47
michael you might want to try waxing or sealing the surface of the print. minor white taught me to use a wax the print surface which usually remove the dust that embeds itself in the gelatin surface and also protects the print surface from scratches. minor used to use blue coral car wax available at most cadillac dealers. also an alternative might be to add a bit of hardner to your fixer which should harden the emulsion more so that you can get the dust out. th

Michael A.Smith
8-Jun-2002, 14:58
Make sure you dry your prints face down on your nylon drying screens. That should do it.

Brian Ellis
8-Jun-2002, 18:17
It doesn't solve the problem but have you tried rinsing the prints again in warm water, perhaps with a small amount of LFN or Photo Flo added, and lightly brushing the prints with your hand while the prints are in the water, to remove the dust?

peter bosco
10-Jun-2002, 17:20
Another matter to consider is how much "black" makes up your image and is it appropriate for the image. It is obviously dramatic, but does it overpower or compete with the image itself? Contact 8 x 10's are one thing, but avoid large prints with great chasms of pure black, the sophisticated eye will right through that smokescreen. "Less" can be a wonderful thing. Look at Huntingon Witherhall's botanicals with the handpainted backdrops he made. Also,I have found a powderpuff from the cosmetic counter (about $3.) is great for removing light debris from prints and glass (also great when you need a quick touch-up!) Don't loose sight of the essential - the image itself - sounds like you are getting tangled up in the small stuff (quite literally!) Concepts are better than any jazzed-up print - avoid smoke and mirrors - too much of that today! Peter

Richard Knoppow
15-Sep-2003, 00:10
Is this dust that collects after the prints are dry, or during drying? Is it possibly particals from the wash water? If its imbedded in the emulsion its most likely particals from the wash water. If this seems likely to you try the same final rinse I suggest for film: Distilled clean water to make 1.0 liter Isopropyl Alcohol 25.0 ml (or 70% rubbing alcohol 35ml) Photo Flo 2.5 ml (half strength). Soak in this for two to three minutes. The surface water should sheet off. Then dry on your screens or other method. It seems obvious to say but make sure the screens are very clean.