violet is cheap plate, but thermal is very good quality and less manipulation problems.
Thermal, without doubts
Originally Posted by meicat
Any technology at it's place
I think there is a place for any technology, so violet is best to newspapers by it's speed (we have Krausse at 350 plates/hour web format violet with only gum as developer by FujiFilm), violet for comercial with high production (we have Fuji Luxel V8HS at 50 plates/hour at 2400dpi 8UP format full automatic) or thermal for high precision (Fuji or Screen had Luxel T9800 or PT-R8800 that can burn at 4000dpi of real resolution and as fast as 40 plates/hour)
About the quality, we can print at paper 10 by 20 micron dot size with violet LPNV fujifilm plates (for security at medical) on our Luxel V8, so it has the quality.
I think conventional plates are going out of bussines by it less homogenity, and many producers are closing theirs production lines (Kodak has none, Agfa is closing, Fuji too...) and price is going up...
please operate with exact information
Originally Posted by josemapenta
kodak conventional plates
they still accept orders
i am agree that kodak very soon stop their plate production. but not only for conventional plates
http://www.13wham.com/news/local/story/Is-Kodak-Ripe-For-A-Hostile-Take-Over/-WPWhHNMQ0u0dO-rUGLrjA.cspx. Year by year they haven't positive balance.
there is a lot speculation about plate price. Reality is that price of conventional plate is still lower than thermal/or violet.
year by year there is prediction that next year price of PTP will be lower and price of UV will be increased.
if you produce 40 plates per hour, you pay per hour 80-160 US$ more, Lets say 100$.
2400$ per day, around 768000 $ per year.
pay 200k$ for ctp and after one year you have 500k$ in your pocket.
Thermal is better for offset
We use Kodak Magnus 400II with thermaldirect plates (processless) and it's really great machine - just like coffe machine (put the coin and press the button) - put the plate and press the button.
We going on hire laser power and little loger time to lighting the plate because of plate nature - non process.
The plates are little more expensive than the other, but hey, we don't have any develop issue.
We are using an Agfa Avalon with thermal Agfa Azura TS plate.
100% Manteinante free, only one clean per year, and one clean per month to the plate processor.
We toast 16 plates / hour (1030x790mm) and 32 plates / hour (720x595mm)
After two years of use > 20.000 plates without problems.
Violet is the future
i THINK vIOLET WILL RULE BECAUSE OF NEWSPAPERS,COST WILL BE EQUAL TO CONVENTIONAL PLATES IN THE NEAR FUTURE
Comparing with the material.
Thermal: Kodak Magnus and Trendsetter, Screen & Agfa PlateRite series
UV: Basys, Cron, Luscher
Violet: FFEI, Heidelberg
In South Korea, with the current material cost competitiveness are being sold a lot of UV models.
Followed by a thermal device is being sold.
Violet equipment due to the price of the materials are not being sold.
Comparing with the quality.
Thermal> Violet> UV
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the problem of violet is the processing not the expose engine
the stability of preheat and PH of chemistry must be more stable to achive good devlop
more stability of plate on drum (good vaccum)
and good condition of stocking plate no large variation of temp
(verify the focus on the plate if u change a plate model or lots )
I too think Thermal is very good.
im using thermal&violet
termal is very quality. Dot stability & quality is high& low price.Violet is very fast & print total high performance. But violet problem dot stability. For Example change product number violet plate new calibration linear.
Thermal CTP for offset printing - 2540dpi - 150 to 200 lpi and stochastincs are OK on production. I measure less then 0.5% difference on a big plate with 1% raster on it(a good quality one).
Violet technology is fine for a.. newspapers - 100 lpi without a problems at all. I know that Krause for example have a Violet CTP's with a speed of 300-350 plates per hour.
I have to use both Violet & Thermal.
Lithostar and Azura Plates and I really think Thermal is much better for several reasons.
thermal for its stability of dots and maintenance of the machine. The plates much stronger on.
Every thing is same
I have made paltes in Voitet in Fuji and thermal in Screen.I dont find any difference.Uv ctp is bad
Kodak thermal CTP + Procesless plates in 200/per day classic offset environment. Untill now - flawless. Like somebody here says - It's like a toaster.