Hair-spray as anti-newton ring product

[sperera]

i was just told an old-timer that did this for a living that he used hair-spray as anti-newton ring product!!!! any comments?

[pellicle]

test it?

spray 1/2 the glass, look for colour and level changes either side of the boundary

[sperera]

they say to spray in the air and pass the negs in the 'mist'

I tried it....NO NEWTON RINGS but i must have sprayed too much as there were dots on the negs....then i tried with another and must not have sprayed enough as newton rings all over.....mmmmmmmmmm i dont think i can trust this method with something with so many variables

[pellicle]

they say to spray in the air and pass the negs in the 'mist'

of course my first reaction that that was

Ahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

I guess these are old guys makin seps from 8x10 chromes for 5x7 magazine layins

:-)

[IanH]

IIRC, cornstarch in alcohol put into a spritzer does the trick - a very light misting on the neg, allow to dry. I'll try to find the 'recipe' - it's around here somewhere amongst the piles of books, notes,etc.,

[Rudeofus]

Hair spray? Starch??? It's funny how people discuss the durability of film material and then spray random stuff on their negs just to get one good scan .... I mean if I had to dunk my slides in some fluid I'd at least wish it didn't leave any residue :confused:

[sperera]

surely there's some fun in this investigation.....testing done on crap fot negs so its ok

Hair spray? Starch??? It's funny how people discuss the durability of film material and then spray random stuff on their negs just to get one good scan .... I mean if I had to dunk my slides in some fluid I'd at least wish it didn't leave any residue :confused:

[EKJellytoes]

Hair spray? Starch??? It's funny how people discuss the durability of film material and then spray random stuff on their negs just to get one good scan .... I mean if I had to dunk my slides in some fluid I'd at least wish it didn't leave any residue :confused:

The problem with ALL these "receipes" is they all try to skip the drums....without an advanced expert drummer, drumming on a totally organic drum (wood and animal hide) these spell, potions and charms just won't work. No Way! Hire a drummer!!

[bob carnie]

I did us a powder for this exact reason when mounting images to vacumn glass.
Never heard of using Hair Spray.

The trick was to have the minimal amount of powder that scared off the newton rings but also did not show.
looking with a loop would tell if there was too much powder and the cursed rings would tell you not enough.

[IanH]

from the Kodak book "Bigger and Better Enlarging"...
Make a thin 'soup' of talc or magnesium carbonate in Kodak film cleaner. The particles will be held in suspension by the liquid. Place negative to be printed on a flat, clean surface with the emulsion side down. Dip a tuft of cotton in the suspension and rub it lightly over the back side of the negative. The liquid evaporates in a few seconds leaving a thin, even coating of the talc particles. Use a camel's hair bursh to even out any streaks or concentration of the particles....Talc particles are small and will not appear in prints made with diffusion enlargers."

Can't say that I've tried it myself. I have a small stash of anti-offset powder (from my prepress days) that I sometimes use - a tiny 'puff' over the neg is virtually invisible, but cuts the newton rings. Less is best