Laminator lines

[Jaykon]

Hey Everybody,

Recently purchased a Sigmont 65H to replace our well loved older laminator. Overall decent but running into one issue that I haven't dealt with before. When you start up a line in the laminate forms where at the point where the backing separates from the backing. This leads to a ton of wasted material to keep the line off the print and not to mention makes it impossible to stop at any point during a run. I have re spooled, adjusted tension and tried everything I can think of. Currently I am using IJ35C with matching 3M laminate so off brand mis matched media. We run the same combo on our smaller laminator and have never had this issue. Can anybody suggest something to try?

Thanks

J

 

[cmoist]

Whats the line line that you're seeing? Is it causing small bubbles, or is it that there is silvering on the rest of the print, except for that spot where the roll started or stopped? Does the line go away with heat or after sitting for a bit?

 

[XtremeXccessories]

We get those on our current Mistral and our crappy old chinese laminator. Never worried about it, it goes away in a day or two.

Could be because of the tension at the separation point when it's sitting idle, maybe loosen the film or backing take-up up by hand after each run?

 

[WBS]

If you have a heated top roller Start to feed the laminate through until the line is on the roller, then wait 1 min and the heat gets rid of it like magic

 

[MarkSnelling]

It is usually caused by too much tension to the laminate....it is being pulled too tight and it creates a stress mark of sorts where the release liner is pulling away from the laminate. Back off your laminate tension and you should see it go away.

It usually goes away regardless after a day. But always think 'less is more' on a laminator. Less tension, less pressure. Run with as little as you can.

 

[Stacey K]

My chinese cold laminator does that also, it goes away. Typically it happens at the start and if I stop, as you stated. I usually allow about 6" before the printing starts and then I try not to stop. And, if it doesn't work out that way, and I get the lines, they go away.

 

[Jaykon]

Thanks everybody after trying a million tension adjustments that didnt work and leaving multiple prints sit 7-14 days to show the lines do not go away, I had Grimco service out. They are now telling me its multiple faulty rolls of 3M 8509 laminate. I am skeptical of this and do not really want to change from my 3m IJ35C-20 / 8509 combo. Will make another post looking for other combos to try but if anybody here has recommendations that would be appreciated.

 

[JBurton]

Thanks everybody after trying a million tension adjustments that didnt work and leaving multiple prints sit 7-14 days to show the lines do not go away, I had Grimco service out. They are now telling me its multiple faulty rolls of 3M 8509 laminate. I am skeptical of this and do not really want to change from my 3m IJ35C-20 / 8509 combo. Will make another post looking for other combos to try but if anybody here has recommendations that would be appreciated.

Man I feel your pain. Most folks don't care about it, but it drives me nuts. It's caused by the glue 'piling' up at the point where the paper is seperating, when left for anything over a minute. My solution is to use a satin laminate. I used to pair ij35c with arlon 3420 satin, but since ij35 has gone up so much recently, I switched to substance pm-2755 for 'economy' grade prints.
8509 gloss has the least consistent finish, if you've been using that, I think you'll be very pleased with the 3420 satin.

 

[Geneva Olson]

If you have a heated top roller Start to feed the laminate through until the line is on the roller, then wait 1 min and the heat gets rid of it like magic

I'm wondering if you can do the same thing afterward with a heat gun

 

[Jaykon]

I'm wondering if you can do the same thing afterward with a heat gun

I wondered the same and tried to xero success. Never had the issue on old laminator so very confused.

 

[JBurton]

I wondered the same and tried to xero success. Never had the issue on old laminator so very confused.

Really? I'd figure every laminator would do this. Did your old one remove the backing at a different angle vs the new one?

 

[Geneva Olson]

I wondered the same and tried to xero success. Never had the issue on old laminator so very confused.

do you think it will go away over time? or is it more of a "pressure" situation?