Remove Crease

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DVieau2

DVieau2

SPFG, Supreme Picture Framing God
Joined
Oct 26, 2004
Posts
10,742
Loc
Wayzata, Minnesota
I have a poster on heavy paper with a crease. I plan to mount on mountcor and I know some of the crease will go away.

Beforehand, I'm thinking of placing the print in the Seal 500t-x with a piece of 1/8 acrylic underneath. 140 degrees for a few minutes. The acrylic will be larger than the print.

Good or Bad idea?
 
Doug, I've never tried it but I don't really think it is a good idea. It may work fine but acrylic does soften with heat - 140 degrees may not be a problem but why take the chance. I believe you will get the same results with a solid piece of 8 ply rag mat. I would mist the back of the poster with distilled water, just mist do not soak. The distilled water steam may loosen the paper fibers enough to remove most of the crease. Lots of luck. Joe
 
I agree with what Joe said. Just remember once those fibers are creased it's pretty much impossible to get rid of it entirely.
Lori
 
Hold on, Doug. If it is a giclee, it may stick to the slip sheet. No worries though if it’s an offset.
 
For situation like this I have re-humidifying chamber, after re-humidifying and flattening that will
look much better.
 
If it's a sharp crease them you haven't much hope. The fibres will have pulled apart and there's
no getting them back. It's like trying to push toothpaste back in the tube.
Mounting it will get it flat but the crease will always be visible.
 
If you try the acrylic in heat press let us know how it worked out.

Depending how bad the crease is, you could try lightly misting with distill water on the back side and ironing the crease out. Don't use tap water as it might stain the paper. Set iron to low. Good luck.
 
Humidification might work, but it needs to be controlled, and the poster should first be tested for sensitivity to water. If the inks or pigments of the poster are in tact on the crease, it might be worth a bit of experimenting, but if they have been cracked from the crease, prefect flattening is pointless.
 
It's an ambient re-humidification and doesn't get in direct contact with water. I never had any problems.
 
We do a lot of letter size paper flatting. We made a simple humidity chamber that has worked very well for this size of paper. (Larger done differentially)
This process takes time, we allow several weeks.
The package consist of, from bottom to top.
11x14 glass
" " acrylic (allows breathability)
" " mat (rag)
" " letter item (face up)
" " acrylic
" " glass x 2 (for weight)
Lightly and evenly moisten (purified water) the mat, and assemble package under weight. Wait a day, check progress, repeat again. Repeat till you are satisfied with the result ( at this point you may install a dry replacement mat, or not) and then leave underweight till completely dry and stabilized, about a week.

(Please note that the paper will be flat, but folds or creases will still be visible.)
 
Thanks for all the ideas.
Here is what worked.
Added very light moisture to the back with a slightly damp rag.
Using the Seal 500 and two 4 ply mat boards I pressed the print at 140 degrees.
I repeated this about a half dozen times and increased the number of mat boards gradually to five.
Each time the crease got a little bit better.

Now the deepest mark is about 95% gone and the smaller marks are completely gone.

Customer Happy.
 
DVieau2 said:
Thanks for all the ideas.
Here is what worked.
Added very light moisture to the back with a slightly damp rag.
Using the Seal 500 and two 4 ply mat boards I pressed the print at 140 degrees.
I repeated this about a half dozen times and increased the number of mat boards gradually to five.
Each time the crease got a little bit better.

Now the deepest mark is about 95% gone and the smaller marks are completely gone.

Customer Happy.
Click to expand...
I hope you were able to "increase" your profits with this job!:rolleyes:

Yeah, yeah, someone will probably admonish me for asking this next question, but

HOW MUCH DID YOU CHARGE YOUR CUSTOMER???:eek:

Or, to get around my Grumble Faux Pas, did you have an hourly plus material special fee you and the customer agreed upon?

Good solution, DVieau2. You are a brave Minnesotan. Glad it worked out and you have made your customer happy.
 
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