Welcome To Signs101.com: Largest Forum for Signmaking Professionals

Signs101.com: Largest Forum for Signmaking Professionals is the LARGEST online community & discussion forum for professional sign-makers and graphic designers.

 


  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Humidity Question / Color Shift

Discussion in 'Flatbed Printers' started by jmcnicoll, Jan 23, 2013.

  1. jmcnicoll

    jmcnicoll Member

    300
    0
    16
    Nov 18, 2007
    Green Bay, WI
    Would you run a flatbed in 15% humidity environment?

    Do we stand a chance of trying to match colors printed on PVC weeks ago with humidity around 35% and now doing reprints to match color in 15% humidity?

    jim
     
    Tags:
  2. rjssigns

    rjssigns Major Contributor

    5,164
    521
    113
    Jun 4, 2007
    Home Office
    I wouldn't run any printer at that humidity level. It will definitely affect dot gain which will mess with color matching. Plus there is a huge risk of static build up killing a board or something else.
     
  3. fozzie

    fozzie Member

    230
    5
    18
    Aug 26, 2012
    illinois
    Ditto rjssigns.

    When we used our flatbed in the winter with humidity around 10-15 percent we had all the static issues:
    - ghosting (overspray) on prints
    - Color shifts
    - board failures (2 the first winter)

    Hate to think of all the $$$$$ that went in the dumpster and labor and parts.

    Got an industrial humidifier that easily keeps our building at 60 percent. No problems since. Best money I ever spent.
     
  4. jmcnicoll

    jmcnicoll Member

    300
    0
    16
    Nov 18, 2007
    Green Bay, WI
    How much did the industrial humidifier cost? How big a building do you have?
     
  5. fozzie

    fozzie Member

    230
    5
    18
    Aug 26, 2012
    illinois
    our building is 60 x 120 - 7200 sq.ft.

    our humidifier is a Fogco. Basically a big mister thas shoots "atomized"' water out of nozzles.

    we dont run it at night. in the morning we come in, the humidity is around 10-15%. It runs about 10 minutes and the humidity goes up to what we set it, around 50 or 60%. Once it hits the mark, it runs about 3-4 minutes 2 or 3 times an hour to keep it there.

    got it about 5 years ago. was around $5,000 plus another $1,000 to get a purified water system installed.
     

    Attached Files:

  6. Mspec

    Mspec Member

    96
    0
    0
    Jul 7, 2008
    regular profiling or color calibrations should get you pretty close color regardless of the RH changes. You should reprofile or at the very least recalibrate your profiles whenever there is a change in the environment, after you install a new ink, or replace any heads. The more stable your environment, the less you will have to phutz with your color, but you should still recalibrate after you install a new ink etc...
     
Loading...

Share This Page

 


Loading...