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Disc manufacturers are demanding more durability from new-generation DVDs, so a completely new way of making them has been developed using spin coatings. Stuart Nathan reports.
The new generation of DVDs - which because of their extra data-holding capacity must be more durable - represents a production challenge.
Although
technology, developed by a Sony-led consortium; HD-DVD, from Toshiba and its partners; and DVD-R DL (dual layer) discs are the same size as conventional DVDs, they can hold around five times as much information. It is because of this that disc manufacturers are demanding that they are more durable.
US chemicals giant
is at the forefront of developing the adhesives and coatings that hold the new-generation discs together and protect the data they hold.
The products were developed in conjunction with the manufacturers of the machinery that makes the DVDs, said Huntsman Advanced Materials' global DVD marketing manager Mark de Heer, and had to take into account both the different construction of the discs, and the more stringent demands their data-holding capacity places on their construction materials.
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