Gig Posters

Posters: 156388 | Bands: 135996 | Designers: 11550                 
   
       RSS Feeds

Username:   Password: 
Register      

Social Networking Activity                 



 Bands  Designers  New Arrivals  Top Lists  Forums  Buy Posters  Submit  Merch Store  Advertise  Widgets  Help

Results 1 to 10 of 10
  1. #1

    Default CMYK Values for Shirts! RGT? Anyone?

    I got a client that wants CMYK films output.

    Normally I use..

    C: 56
    M: 71
    Y: 86
    K: 26

    With an angle of 22.5

    My question is.. I haven't done CMYK seps/films in YEARS... what dot/angle/screenmesh/print order/etc.. What is the industry standard these days?

    Thanks!
    S.

  2. #2
    Premium Member
    Join Date
    Dec 2004
    Location
    Kingston Ontario Canada
    Posts
    969
    Comments
    3

    Default

    YMCK
    22.5
    32.5
    52.5
    22.5

    55LPI

    is what I've used in the past, but I've only done it on paper . . . but it worked great.

  3. #3
    Premium Member
    ASPrintingPress's Avatar


    Join Date
    Feb 2006
    Location
    Roanoke, Virginia, United States
    Posts
    3,911
    Comments
    392

    Default

    Y 22
    M 82
    C 82
    K 22

    50 LPI
    Elipse
    "Fame" can lick my sweaty undercarriage. ~Jeph
    that's like hearing hugh hefner is over the p_ssy thing. ~motownjc
    middle america doesn't riot. that's why we have europeans ~poguemahone

    POSTERSASPrintingPress.comEtsyFlickrCop A Squat ToysInstagram

  4. #4
    RichieGoodtimes's Avatar

    Join Date
    Mar 2002
    Location
    San Frangeles, Califas
    Posts
    27,047
    Comments
    5094

    Default

    52 82 22 22

    55lpi

    ROUND with inkjets.

  5. #5
    ohdanielsan's Avatar

    Join Date
    Aug 2008
    Location
    Los Angeles, CA
    Posts
    411
    Comments
    5

    Default

    i was also curious about this, as i've never done it before. what is the purpose of the duplicate angles? i thought all angles were supposed to be different, no?

    and 50/55 LPI would be for a 200/220 mesh count or higher, right?

  6. #6
    RichieGoodtimes's Avatar

    Join Date
    Mar 2002
    Location
    San Frangeles, Califas
    Posts
    27,047
    Comments
    5094

    Default

    The duplicate angles are the yellow and the black. Least likely colors to moire with each other.

    305 for 55lpi, though you could probably get the yellow on a 260.

  7. #7
    andydiesel's Avatar

    Join Date
    Mar 2003
    Location
    Portland, Oregon
    Posts
    34,779
    Comments
    1376

    Default

    Quote Originally Posted by RichieGoodtimes View Post
    52 82 22 22

    55lpi

    ROUND with inkjets.
    why round with inkjets?

    about a year or two ago i switched from eliptical to round dots because it looked/printed better for us on our presses. is there some scientific reason why?

  8. #8
    RichieGoodtimes's Avatar

    Join Date
    Mar 2002
    Location
    San Frangeles, Califas
    Posts
    27,047
    Comments
    5094

    Default

    The science states that ink spreads on inkjet films and lengthens the dots naturally based on how the heads lay the ink down. Round dots become slightly elliptical.

  9. #9

    Default

    Right on thanks!

    S.

  10. #10
    ohdanielsan's Avatar

    Join Date
    Aug 2008
    Location
    Los Angeles, CA
    Posts
    411
    Comments
    5

    Default

    Quote Originally Posted by RichieGoodtimes View Post
    The duplicate angles are the yellow and the black. Least likely colors to moire with each other.

    305 for 55lpi, though you could probably get the yellow on a 260.
    ah, i see. makes sense. i found this article a while back that talked about a bunch of screen printing pre-press techniques. here's a quote from the part about angles. any thoughts about what this guy is saying? is it valid?

    For coarse halftones of 50 lines/in. or below, conventional litho angles (Y = 0°, C = 15°, M = 75°, K = 45°) will work if the mesh is a plain weave of 355 thread/in. or more. The dots are large enough that the angular interference of the mesh with the halftone structure is not too much of a problem.

    But as the line count gets higher (smaller dots), we must rotate the entire angle set away from the traditional litho angles, primarily because the angles for the yellow and black dots correspond exactly with the weave of the screen mesh and are likely to cause moiré. [...]

    The most common corrected angle set for screen printing is Y = 7.5°, C = 22.5°, M = 82.5°, and K = 52.5°. These values will work for 95% of all screen-printing applications, even with the very fine line counts used by CD decorators. Also note that by using mesh with a lower thread diameter and plain weave, your chances of success increase substantially.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •