marking photopolymer plates

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mrgraphixs
Posts: 3
Joined: Wed Jul 23, 2008 3:14 pm

marking photopolymer plates

Post by mrgraphixs »

Has anyone found a permanent way to mark a photopolymer plate that will not come off with normal Propyl alcohol?
Is there a good scribe, heated scribe or permanent marker that will hold up?
macmanpcg
Posts: 25
Joined: Mon Sep 24, 2007 2:45 pm
Location: Maryland

Re: marking photopolymer plates

Post by macmanpcg »

Can you make a solid block and reverse copy as a positive so it can be read from the backside? You can image this on plate and film or just make codes off line and tape them down if necessary.
mrgraphixs
Posts: 3
Joined: Wed Jul 23, 2008 3:14 pm

Re: marking photopolymer plates

Post by mrgraphixs »

Yes, I can do this, but I don't want the labeling info to actually print. It has to remain on the plate though. Thanks for the idea.
macmanpcg
Posts: 25
Joined: Mon Sep 24, 2007 2:45 pm
Location: Maryland

Re: marking photopolymer plates

Post by macmanpcg »

Can you change the type and place it on the back side of the plate and use your back exposure so it is in the floor?
mrgraphixs
Posts: 3
Joined: Wed Jul 23, 2008 3:14 pm

Re: marking photopolymer plates

Post by mrgraphixs »

Yes, we could, but these would be very time consuming for us since we "gang" shoot several jobs together.
exflexo
Posts: 222
Joined: Fri Sep 21, 2007 5:01 pm

Re: marking photopolymer plates

Post by exflexo »

You can use an item available at any graphic arts supplier called a Pin-Vise. It is basically an exact-o type of knife, but it holds a pin that you can scratch the plates.

I also used a cheap soldering iron available at Home Depot. It is skinny and has a pointy tip and will burn the plate. You can almost write with it like a pen, but it takes some practice and takes a long time to warm up.... works good... but definitely practice on scrap material. The pin vise is a easier to work with.
Gorilla Printer
Posts: 319
Joined: Wed Oct 06, 2010 1:13 pm

Re: marking photopolymer plates

Post by Gorilla Printer »

Text written in permanent black marker,then repeated again with small soldering iron over the top .
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Frank Burgos
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Re: marking photopolymer plates

Post by Frank Burgos »

A machinist's scribe. Scratch the ID on the plate floor.
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