Pro-1000, Pano's and cut roll paper

[rick_k]

For those of you who have tried cutting roll paper down to size to print pano's up to the new 47 inch limit:

1. are you de-rolling the paper before feeding it or just feeding it through with the curl?
2. if de-rolling, how are you doing de-rolling it?
3. any paper damage from de-rolling?

I'm just getting started trying this approach.

Thanks,
Rick

[Alan Goldhammer]

For those of you who have tried cutting roll paper down to size to print pano's up to the new 47 inch limit:

1. are you de-rolling the paper before feeding it or just feeding it through with the curl?
2. if de-rolling, how are you doing de-rolling it?
3. any paper damage from de-rolling?

I'm just getting started trying this approach.

Thanks,
Rick

I do my cutting with a rotatrim which makes a perfectly straight cut.  I always de-roll the paper.  I use a 4 x 19 inch mailing tube and roll the paper on it with piece of archival paper against the coating side.  I've found that this is a gentle way to get rid of the curl and the coating surface seems not to be impacted in any way.  It takes about 30 minutes for the curl to relax and straighten. This works for me and is very inexpensive!

[bobfriedman]

I am having trouble with derolling some papers such as ilford gold fibre silk, even the canon premium semi-glossy paper retains too much memory at the ends and it usually ends with a head strike at the paper ends.

I use a rotatrim and roll the paper backwards and secure with rubber bands and leave for 2 days then unroll and lie flat for a day under minor weight.

The best luck I have had is with canvas such as the Hahnemuele Metallic Canvas or the Canon Artistic Satin Canvas

If anyone has found a baryta, semi-gloss or lustre that derolls nicely  I would appreciate knowing.

[MikeWhitten]

Hi,

I've just started trying this today. While working with my former 4900 I'd come to enjoy making 16x32 canvas prints.

As far as feeding goes I've not yet tried decurling the whole sheet. Several of the pieces I cut simply fed with no issues. On one I did decurl the first couple inches after getting a feed issue the first time.

I did have one strange problem. See next post if interested.

Mike

[Alan Goldhammer]

I am having trouble with derolling some papers such as ilford gold fibre silk, even the canon premium semi-glossy paper retains too much memory at the ends and it usually ends with a head strike at the paper ends.

I use a rotatrim and roll the paper backwards and secure with rubber bands and leave for 2 days then unroll and lie flat for a day under minor weight.

The best luck I have had is with canvas such as the Hahnemuele Metallic Canvas or the Canon Artistic Satin Canvas

If anyone has found a baryta, semi-gloss or lustre that derolls nicely  I would appreciate knowing.

I only print on cotton rag papers and not alpha-cellulose papers that might also have a resin coating like Gold Fibre Silk.  Cotton rag papers de-roll quite easily.

[bobfriedman]

I only print on cotton rag papers and not alpha-cellulose papers that might also have a resin coating like Gold Fibre Silk.  Cotton rag papers de-roll quite easily.

thank you.. i guess I should have figured that out by myself, will try soonest.

[Ernst Dinkla]

For those of you who have tried cutting roll paper down to size to print pano's up to the new 47 inch limit:

1. are you de-rolling the paper before feeding it or just feeding it through with the curl?
2. if de-rolling, how are you doing de-rolling it?
3. any paper damage from de-rolling?

I'm just getting started trying this approach.

Thanks,
Rick

Some thin foam foil as used in packaging at the beginning of the decurling roll avoids the impression of the paper edge further on the decurled roll.
Temperature during the decurling proces has a lot of influence on some papers. I doubt it is the humidity as I decurl the paper in between PET foil on the roll. More likely the sizing (starch etc)  that binds the fibers becomes less rigid and allows the fibers/layers to bend the other way.  40 to 50 degrees Celsius reduces the time a lot on papers that were hard to decurl.  Still in the process to balance time and temperature for longer lengths. Using a carton core that has caps at the ends the temperature inside the core will not raise that fast and the least bended spiral rings on the outside will heat up faster and longer than the more bended spiral rings near the core. Some theory and experience mixed in this comment. I am thinking of a heated vertical tube chamber to put a roll in. So far I used a large drying cabinet.

Met vriendelijke groet, Ernst

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