Alwan Color Expertise and Bodoni Systems Practical Pressroom Colour Management
Alwan Color Expertise and Bodoni Systems Ltd. are utilizing IFRA to showcase their combined solution ensuring fast makereadies, increased stability, ink savings, and ISO-12647 standard output. The integrated offering features Alwan’s CMYK Optimizer version 3 and Bodoni pressSIGN.
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Alwan CMYK Optimizer version 3 is making its European debut at IFRA, after being selected as an outstanding technology on exhibit at last month’s Graph Expo in Chicago, USA. pressSIGN, Bodoni’s press TVI measurement and correction software, is being rapidly adopted throughout the UK and Europe.
“The press is the most expensive piece of equipment to purchase and run in the workflow, and so you want to set everything up to “march to the press’ explains Ian Reid, president, Bodoni Systems Ltd. “The problem is, the press can also be the most unreliable device in the shop. This is where we concentrate our efforts with pressSIGN. By bringing Alwan CMYK Optimizer in to apply pressSIGN TVI corrections, we give our customers everything they need to get full ISO-12647 compliancy, standardised data and standardized print. Together we do the complex color work needed for certified print quality and faster production.”
Europe and most countries worldwide want ISO-12647 standard compliance. The integration of Alwan CMYK Optimizer with pressSIGN are said to have shown that press calibration to ISO specs is much easier, faster and accurate when using this software than any other technique or existing software. Combining these products should be a step towards getting presses in line with ISO specs and making jobs on press faster, with minimum waste and maximum stability.
A similar integration with IDEALink software for G7 compliance, which is the Americas’ preferred path to ISO- 12647 compliancy, received much acclaim after its announcement at Graph Expo.
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Time of Entry: 2007 10 09 UT - by Henk Gianotten
This is a nice achievement. Device Link Profiles are an important part of our workflow. Some producers call this 4-D Transforms. It is a technology to convert CMYK in CMYK and one is able to select the maximal TAC (CMYK total), TVI (Tonal Value Increase), maximal color purity and other device dependent print variables. Black can be selected and the starting point of K, the amount of GCR (Gray Component Replacement) and the width and length of the CMY-K-replacement can be determined by the operator or can be calculated by the system.
Results: faster make-ready, more stable print, less register problems (visual), less ink consumption, less energy for heat set offset presses and a better quality control.
I expect that within a few years DVL is standard in all prepress workflows. The technology is already more that 8 years old. Companies such as Heidelberg, Alwan, CSS, VisionOne and GMG have improved the basic technology.
The most promising is the combination of color control and application of dynamic DVL-transforms. The technology for the future, I think.







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