Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 70,592   Posts: 1,545,985   Online: 1009
      
Results 1 to 7 of 7
  1. #1
    brucemuir's Avatar
    Join Date
    Dec 2007
    Location
    Metro DC area, USA
    Shooter
    Multi Format
    Posts
    2,264
    Images
    4

    Hypersensitivity to C41 process

    Hey folks,
    Has anyone ever experienced hypersensitivity (eczema I suspect in my case) or know about possible reactions to either the components of C41 developer or even the bleach?

    I've used metol for years with no problems but I haven't narrowed down my problem.
    I started home inversion C41 1-2 years back with a lot of skin contact so that is my first guess but who knows.

    I've had 2 outbreaks recently on my arm (not from DIRECT contact) that I think may be eczema.
    It's tough to say if it's related to the C41 process but it did rear it's head twice when I did some color work after a short hiatus.

    Any thoughts will be appreciated.

  2. #2
    Ian Grant's Avatar
    Join Date
    Aug 2004
    Location
    West Midlands, UK, and Turkey
    Shooter
    Multi Format
    Posts
    16,277
    Images
    148
    Colour developing agents can cause problems, some people are hyper sensitive to them. But as you say it's hard to be sure what may be the cause without proper dermatalogical testing.

    Here in the UK a girl died recently after dyeing here hair, there's conjecture that it was a result of something in the hair dye, frorms of PPD are used and are essentially very closely colour developing agents. They are being phased out.

    Ian

  3. #3

    Join Date
    Jul 2010
    Location
    Southern USA
    Shooter
    Multi Format
    Posts
    3,846
    You might first try using a barrier cream. Check with you local pharmacy. You want the one to protect against water soluble chemicals. If that doesn't work then try using nitrile rubber gloves. Ordinary latex gloves do not work as well. After using C-41 wash you hands thoroughly.
    A rock pile ceases to be a rock pile the moment a single man contemplates it, bearing within him the image of a cathedral.

    ~Antoine de Saint-Exupery

  4. #4
    Photo Engineer's Avatar
    Join Date
    Apr 2005
    Location
    Rochester, NY
    Shooter
    Multi Format
    Posts
    23,037
    Images
    65
    Do you use protective gloves? If not, try them. That might fix things up.

    PE

  5. #5
    Mike Wilde's Avatar
    Join Date
    Aug 2006
    Location
    Misissauaga Canada
    Shooter
    Multi Format
    Posts
    2,939
    Images
    29
    I treat anything with a PPD developing agent or it's salts as a green nitrile gloves only situation when I am using it in tanks that leak a bt, or with film hangers.

    The other thing that drives me to them, is I usually use it replenished, and have had the sliver turn up as gradually appearing black stains where the stuff has splashed me inadvertently.
    my real name, imagine that.

  6. #6
    sandermarijn's Avatar
    Join Date
    Oct 2005
    Location
    Leiden, Netherlands
    Shooter
    35mm
    Posts
    770
    Images
    11
    Problems with the skin of my fingers (and later the face as well) forced me away from RA4 some 10 years ago. Gloves didn't help (I wore them by default already), as neither did skin cream.

    Last year I've done C-41 on a couple of films, and despite all the same precautions (ventilation, gloves, cream) my hands didn't take it too well.

    I've always felt that something in (the fumes from) the blix (in both RA-4 and C-41) is the culprit.

    No problems at all with b&w.

    Sander

  7. #7
    Photo Engineer's Avatar
    Join Date
    Apr 2005
    Location
    Rochester, NY
    Shooter
    Multi Format
    Posts
    23,037
    Images
    65
    The fumes from the Blix, Bleach or Fix consists of Ammonia, Acetic Acid and Sulfur Dioxide depending on the pH and are therefore identical to fixers in B&W.

    The Bleach and Blix contain ingredients which are similar to a Cyanotype sensitizer. Similar but not the same. Just close relatives.

    The Fixing portions of these are similar to non-hardening neutral fixes used in B&W.

    PE



 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  —   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin