Create a "stay away" trap in XMF

Started by iancoulton, July 11, 2017, 07:21:09 AM

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iancoulton

Hi,

I hope someone might be able to help me. I have a document which has white-out text (vector) over a black CMYK image (bitmap).

I need to create a "stay away" or "kickback" trap so that the CM and Y separations are pulled away from the edges of the Black separation (obviously to prevent registration issues on press).

I can do this with white-out text over a CMYK rectangle (vector) but I can't get it to work when the white-out text is over a bitmap.

Hope someone can advise - any help is massively appreciated!

Regards,

Ian

Joe

I've never seen this work with auto trapping with an image as the background. If I need to do this type of thing (in Prinergy) I have to do it manually by creating a stroke around the text and coloring it C=0 M=0 Y=0 K=100 (or whatever value in the K to match the background of the image as close as possible).
Mac OS Sonoma 14.2.1 (c) | (retired)

The seven ages of man: spills, drills, thrills, bills, ills, pills and wills.

iancoulton

Hi Joe,

Thanks for your reply. That is the same advice I have been given by the manufacturer, I previously used a Screen workflow which had a "kickback" feature in the trapping settings that worked really well.

Cheers,

Ian

Joe

Did it work on images as the background? Never seen any of the workflows I've used do it with auto trapping. They would all kickback over tints or vector but not raster images.
Mac OS Sonoma 14.2.1 (c) | (retired)

The seven ages of man: spills, drills, thrills, bills, ills, pills and wills.

Tracy

Did you look in the Image trapping menu?
There is a selection for 1 bit masks, I think I may have done it before
I will check it out.
the Trap settings are in the "T" icon

Tracy

#5
Yes! selecting 1 bit masks does trap the white to a 4 color black image
If your black is less than 100% you can change the percentage of the black for trap

Actually I don't have any problem trapping a 4 color image with white vector text
without selecting 1 bit masks no settings needed to be changed
is it a bitmap?

Joe

Tracy, is your background image a raster image (photo - not vector or a tint)? And it is knocking the CMY out of the image around the white type?
Mac OS Sonoma 14.2.1 (c) | (retired)

The seven ages of man: spills, drills, thrills, bills, ills, pills and wills.

Tracy

Yes! I created a 4 color black in photoshop and white text on top in indy

Joe

Cool that you have that in XMF. Kodak support says Prinergy can't do it.
Mac OS Sonoma 14.2.1 (c) | (retired)

The seven ages of man: spills, drills, thrills, bills, ills, pills and wills.

frailer

Forgotten good guys: Dennis Ritchie, Burrell Smith, Bill Atkinson, Richard Stallman
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DCurry

Back when I used Agfa Apogee it would create keepaways on images automatically.
Prinect • Signa Station • XMPie

Build a man a fire, and he'll be warm for a night. But set a man on fire, and he'll be warm for the rest of his life!

DCurry

Joe - I have Prinergy and it does create keepaways over 4-color black images. Here are my standard settings and it worked when I ran a test (the test image was a 4-color black image [40/30/20/100] placed into ID with white text placed on top in ID.)
Prinect • Signa Station • XMPie

Build a man a fire, and he'll be warm for a night. But set a man on fire, and he'll be warm for the rest of his life!

Joe

Dan - what version of Prinergy are you running? It has been awhile since I asked support about it. Probably version 5 or 6. Right now I am on 7.5 but planning to move to 8.0.2 soon. I'll have to compare my settings to what you show there and give it a try.
Mac OS Sonoma 14.2.1 (c) | (retired)

The seven ages of man: spills, drills, thrills, bills, ills, pills and wills.

iancoulton

Hi all and especially Tracy,

This worked a treat - Tracy I owe you one - thanks for your help!

Cheers,

Ian

DCurry

Prinect • Signa Station • XMPie

Build a man a fire, and he'll be warm for a night. But set a man on fire, and he'll be warm for the rest of his life!