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News Release from: Kodak Graphic Communications Group | Subject: Quickbake Oven
Edited by the Printingtalk Editorial
Team on 26 April 2005
Plate Baking Oven's Low Running Costs
Kodak Polychrome Graphics (KPG) has announced the European launch of the KPG Quickbake Oven, designed for its DITP Gold Printing Plates used in heatset web and other long run applications.
Kodak Polychrome Graphics (KPG) has announced the European launch of the KPG Quickbake Oven, designed for its DITP Gold Printing Plates used in heatset web and other long run applications The new oven is claimed to provide KPG users with lower running costs, more even and consistent plate baking, reduced plate deformation and a significantly smaller footprint compared to other systems
This article was originally published on Printingtalk on 1 Aug 2008 at 8.00am (UK)
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Like most printing plates the run length of DITP Gold plates is considerably lengthened when post baked said KPG.
That makes possible runs in excess of one million impressions (subject to press conditions) and in some cases that can be achieved with only a partial bake, which speeds up the process.
In addition, post baked plates show excellent solvent resistance on press, with no adverse effects on the ink and water balance, demonstrating good performance despite the fact that no pre-bake solution is used for in-line installations (for off-line applications pre-bake is required), added the company.
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Printers currently using a conventional post bake oven who wish to upgrade in order to reduce running costs or footprint size, and printers who are experiencing distortion problems with large baked plates and heatset web offset printers looking for plate security and longevity, can all benefit from the new oven, said KPG.
The Quickbake Oven is also aimed at sheet-fed printers requiring plates to handle long runs, particularly if printing FM screens, or plates to be used with UV inks.
The oven is available in two formats - the 1250 model, which takes plates up to 1,250mm in width, and the 1550, which accepts plates up to 1,550mm wide.
A version of the oven is also available for VLF KBA applications.
KPG claimed that the oven is simple to operate, requiring minimal operator intervention, whilst its robust construction ensures reliability and accuracy.
The footprint of the plate processing line for the DITP Gold plate can be reduced by up to 50 per cent because the wash gum and rinse gum units are no longer needed.
Other benefits include lower power consumption for comparable plates baked with conventional post bake ovens, plus a reduction in chemical usage and the elimination of water.
Running costs can be reduced by over 20 per cent when compared to conventional post bake ovens and the new oven does not require pre-bake solution to be added, only a standard 850S finisher, and the oven allows plates to be processed more quickly through the line at up to speeds of 1.5 metres per minute, with a recommended speed of 1.3 metres per minute, claimed KPG.
The Quickbake Oven is said to use a controlled combination of heat and infrared radiation, from short wave infrared lamps, to achieve a consistent full or partial bake.
To achieve optimum uniformity, a temperature probe controla the ambient temperature within the oven, even when the it is not in use.
Two extraction fans, controlled separately by the PCB, extract heat and fumes from four areas within the oven, ensuring uniform baking time after time.
The equipment must be connected to an external extraction system, said KPG.
On exit from the oven, plates are allowed to cool in such a way that the possibility of deformation is minimised and the cool plates are then conveyed in to the gum section, before being dried on both sides, ready for the press, added the company.
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