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Valued Member
United States
27 Posts |
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I had read here about differences in plate wiping for rotary vs flat plate presses. Here is a quote from that thread. This isn't about the lines Hal mentions, but the overall smeared ink. Quote:
srailkb's mention of "characteristic plate wiping" refers to how rotary prints typically have light coloration across the entire stamp. In the rotary process the plates weren't always wiped very well. This left small amounts of ink across the whole surface of where no design should be printed. |
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Pillar Of The Community
Canada
689 Posts |
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Hi,
I thought it was only possible on Rotary press (because rotation, velocity, etc.); there are lot of coil stamps with theses lines and ink transfer like that. I have to read more... :-)
Very interesting Hal and Kim Possible!
Thank you!
CDNum. |
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| Edited by cdnum - 05/29/2015 06:05 am |
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Pillar Of The Community
United States
1414 Posts |
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Pillar Of The Community
United States
1179 Posts |
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ALL PRINTING PLATES - FLAT, ROTARY, OFFSET, ROTOGRAVURE, ETC. - after a press stoppage, and before press re-engagement, will have the plates wiped by hand to removed dirt, grime, hand oil, machine oil and especially dried ink; newly hung plates included. |
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| Edited by Hal - 05/29/2015 4:16 pm |
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Pillar Of The Community
Canada
689 Posts |
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Hi All, Something interesting... angles are not in the same direction and I don't understand why? Maybe someone know why? Thank you Hal and CfrPhoto! CDNum.  |
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| Edited by cdnum - 05/30/2015 6:38 pm |
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Rest in Peace
7742 Posts |
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Quote:
Printing ink is very thick, like a paste. It is applied to a plate by means of a roller, and the excess has to be wiped off to get down to the plate surface with the engraved lines filled with ink You summed it up correctly essayk... When I first went to high school, I took a 4 year printers/lithographer course and have used flat bed/rotary presses a lot and YES if I did not wipe it down sufficiently..You will get those so called wisps... Robert |
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| Edited by wert - 05/30/2015 10:08 pm |
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Pillar Of The Community
1151 Posts |
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essayk
I find your posts to be outstanding, wish you lived in the same town as I do, so we could get together and talk stamps. Bet I'd learn from you!
How about moving to Pahrump Nevada. Sunday expected only to be 106, won't get hot until July and August. The fishing is great, can take you out to mine gold, but you have to put up with the Rattle Snakes, I just use my old .38.
Look forward to your next post.
Cheers
David (Stampmaster) |
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Pillar Of The Community
Canada
689 Posts |
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Canada
689 Posts |
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Hi, There are some ink on back of this stamp. Is stamp with ink on back was always printed with flat plate? I read that some stamps come from coil and sheet waste... these stamps can (or cannot) have ink on back? Thank you! CDNum.  |
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Pillar Of The Community
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2544 Posts |
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Canada
689 Posts |
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Hi Chasa,
Why coil and sheet waste stamps cannot have ink on back?
Thank you!
CDNum.
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| Edited by cdnum - 07/18/2015 5:29 pm |
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Replies: 26 / Views: 7,234 |
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Posted 05/28/2015 7:56 pm
