Chemists-Is this bad for film?

Discussion in 'Color: Film, Paper, and Chemistry' started by JMC1969, Mar 25, 2010.

  1. JMC1969

    JMC1969 Subscriber

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    In a discussion about controlling dust on film (and/or scanning surfaces), it was mentioned that one photographer used a Swiffer Sweeper pad (dry) to clean negatives before printing or scanning.

    So, I did some goggling and found that most of the ingredients are a secret formula, but found other statements referring to these.

    Polypropylene - which sounds like it could be based of petroleum, i.e. vaseline.
    1,4 Dioxane - which is classified as ether. and a dehydrated form of;
    Diethylene glycol - which also sounds like a petroleum with alcohol.

    1.) Are they bad for the gelatin base in emulsion? Color or B&W?

    If any are related to alcohol, I would wonder if that could somehow have a drying effect on the gelatin and possibly cause cracking.

    2.) I have also been told that there is some sort of "oil" in those "Orange film clothes". Can anyone confirm that and/or tell me what compound it actually is. Possibly why it is safe.


    I'm not a chemist and at times like this, wish I was.

    Thank you
     
  2. Photo Engineer

    Photo Engineer Subscriber

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    Don't ruin your film. Don't use any of the above.

    PE
     
  3. JMC1969

    JMC1969 Subscriber

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    Thank You PE.

    Can you tell me if I am correct on my assessment of the effects of a alcohol based product on gelatin? Or maybe explain how these products would be harmful to film. I know you are a busy person, but I have a thirst for knowing the reasons behind this type of thing.

    Thank You
     
  4. Photo Engineer

    Photo Engineer Subscriber

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    Alcohol based products are generally less harmful than your list above, because alcohols tend to evaporate, at least the common ones we use. The chemicals you list are generally oily and some contain colorants and fragrances. These leave residues on film that smear the image and can damage the support or gelatin. Generally, oily materials are bad.

    You can search google for more information as follows:

    http://en.wikipedia.org/wiki/1,4-Dioxane

    PE
     
    Last edited by a moderator: Mar 25, 2010
  5. Kirk Keyes

    Kirk Keyes Member

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  6. JMC1969

    JMC1969 Subscriber

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    Thanks PE for the explaination.

    Kirk, the clothes you refer to are the ones I mentioned in #2 part of my question. I was told that these are the ones that have some sort of oil in them. What makes these clothes "Antistaticum"?
     
  7. pentax4ever

    pentax4ever Member

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    Polypropylene is a polymer, probably used in the fiber in the dry Swiffer pad or refill and would not leave a residue. I looked at two MSDSs for the dry Swiffer refills and they do not disclose 1,4-dioxane or diethylene glycol. It is unlikely that the dry Swiffer products would leave enough residue on negatives to harm them. If you are concerned, try rubbing a Swiffer on a clean dry reflective surface, such as a mirror or glass and look for any sign of residue or smearing.

    Whether or not the Swiffer fibers would scratch the surface of the negative is another question, you could try it out on a strip of negatives that you aren't overly fond of.
     
  8. JMC1969

    JMC1969 Subscriber

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  9. Hexavalent

    Hexavalent Subscriber

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    Are those Polonium 210 anti-static brushes still available? Haven't seen one in years.
     
  10. Oren Grad

    Oren Grad Subscriber

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  11. pentax4ever

    pentax4ever Member

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    Looks they are referring to trace levels of 1,4-dioxane that may be formed in the manufacturing process for a detergent. Doesn't look like they were linking this to the Swiffer dry products.
     
  12. Kirk Keyes

    Kirk Keyes Member

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    That's a question for Ilford - maybe Simon Galley would be able to answer it for us.