Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 70,711   Posts: 1,548,645   Online: 1104
      
Page 3 of 3 FirstFirst 123
Results 21 to 27 of 27

Thread: Ziatype - Help!

  1. #21
    Robert Hall's Avatar
    Join Date
    Aug 2004
    Location
    Lehi, Utah
    Shooter
    ULarge Format
    Posts
    2,040
    Images
    28
    I bought a roll of mylar from light impressions.

    Also, how is the humidity with all this? I keep mine quite high and humidify the paper also. (Unless I missed that part of the discussion)
    Robert Hall
    www.RobertHall.com
    www.RobertHall.com/mobile
    Apug Portfolio
    Facebook Profile


    Technology is not a panacea. It alone will not move your art forward. Only through developing your own aesthetic - free from the tools that create it - can you find new dimension to your work.

  2. #22
    donbga's Avatar
    Join Date
    Nov 2003
    Shooter
    Large Format Pan
    Posts
    2,084
    Quote Originally Posted by matt miller
    I'm gathering all the supplies to try my hand at Zias. Where can I get mylar sheets?

    Thanks,
    Matt
    An art supply should have mylar such as Pearl Art Supply.

    Don Brynat

  3. #23
    donbga's Avatar
    Join Date
    Nov 2003
    Shooter
    Large Format Pan
    Posts
    2,084
    Quote Originally Posted by Robert Hall
    I bought a roll of mylar from light impressions.

    Also, how is the humidity with all this? I keep mine quite high and humidify the paper also. (Unless I missed that part of the discussion)
    Humidty is integral to the success of the process. If the paper is too humid though you can ruin negatives. 50 to 60% RH should be fine.

    Don Bryant

  4. #24
    colrehogan's Avatar
    Join Date
    May 2004
    Location
    St. Louis, MO
    Shooter
    Large Format Pan
    Posts
    2,016
    Blog Entries
    3
    Images
    16
    I've made prints in anywhere from 34% to 80% humidity (I can't dehumidify the entire house) and I always use a sheet of mylar between the negative and the paper. Is there a way to tell if the paper has had too much humidity?
    Diane

    Halak 41

  5. #25
    donbga's Avatar
    Join Date
    Nov 2003
    Shooter
    Large Format Pan
    Posts
    2,084
    Quote Originally Posted by colrehogan
    I've made prints in anywhere from 34% to 80% humidity (I can't dehumidify the entire house) and I always use a sheet of mylar between the negative and the paper. Is there a way to tell if the paper has had too much humidity?
    If the paper feels really limp then it is probably too damp.

    That's my answer perhaps someone else can describe a better way to determine paper humidity.

    Don Bryant

  6. #26

    Join Date
    Feb 2004
    Posts
    12
    It looks to me like you are letting the chemicals sink too far into the paper. Keep in mind that a lot of the testing for zia's was done in a very low humidity area. I find I have to immediatly start drying the wet solution with a warm hair dryer after I have coated the paper. The ideal printing temp/humidity for zia's seems to be 80/80.

  7. #27
    donbga's Avatar
    Join Date
    Nov 2003
    Shooter
    Large Format Pan
    Posts
    2,084
    Quote Originally Posted by cullah
    Keep in mind that a lot of the testing for zia's was done in a very low humidity area. The ideal printing temp/humidity for zia's seems to be 80/80.
    Sullivan and Weese tested in Santa Fe and in Conn. under varying humidity levels. The conclusion was that low humidity always produced less than pleasing prints.

    80% RH is really damp. How are you measuring the RH? If you are using an electronic meter then you RH readings could be really off. A wet/dry bulb themometer will give the most accurate values for RH. I find that the Radio Shack meter to be 10 to 15 points to high compared to the RH calculated with my wet/dry bulb thermometer. As for 80 F I've printed zias at various temps 68 and above to 85 and the biggest influence is caused by the RH.

    It is also difficult to suggest absolutes about Ziatype since there are so many ways to mix the sensitiser not to mention the effects of using different papers.

    Of course what counts is what works for you. If you have everything working don't change anything unless you want to experiment.

    Cheers,

    Don Bryant

Page 3 of 3 FirstFirst 123


 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



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