Screen printing a bitmap

6810 Views 4 Replies 4 Participants Last post by fc, Jun 28, 2010

fc

Discussion Starter · Jun 28, 2010

Every screen printing job that I have done has involved artwork which has been vectored. I recently had someone come to me asking me to print a 5 color job using a bitmap. She explained that the printer she's used in the past had always printed off of a bitmap.

Is this possible? If so, how do you do your color separations? Wouldn't the quality of your print be poor given you don't have clean lines to work with?

Thanks,

Save

1 - 5 of 5 Posts

alvin6661

· #2 · Jun 28, 2010

can you post a pic of the bitmap in question?

Save

red514

· #3 · Jun 28, 2010

I do bitmap separations all the time, there's many methods (spot, spot halftone, simulated process, index) and techniques you can use all depending on the design and the print needs. All the separation is done in a bitmap editor (i use Adobe Photoshop)most often using channels to build your 'plates'.
the print quality/clarity for bitmap images is dependent on resolution (and how clean the original design is, "garbage in = garbage out"), you would want at least 300dpi for a clean line.

Save

Blackwater

· #4 · Jun 28, 2010

you should be able to color separate it in Photo Shop, or use AI or Corel to trace the bitmap.

Save

fc

Discussion Starter · #5 · Jun 28, 2010

Thanks for the responses.

I've been doing a little research. Has anyone tried using this program called Spot Process Separation? It supposedly does color separation outside of PS, and is supposed to be easier.

Thanks,

Save

1 - 5 of 5 Posts

This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.

Top Contributors this Month