Materials & Specifications

What type of polycarbonate does Sony DADC use?

Sony DADC exclusively uses a high-quality polycarbonate that meets the toughest standards and also has outstanding material properties. For example, its shape is stable under heat, it is extremely pure and it can be dyed with various colours.

What is a dye and what differences are there?

There are three types of dye, all based upon organic materials: cyanine (blue), phthalocyanine (transparent green) and azo (blue).

The colour of the recordable side of the CD-R/CD-RW is determined by the colour of the dye used and the reflection layer. The basic colour of the label side is determined by the colour of the reflection layer and of the protective varnish. At a wavelength of 780 nm (used by CD recorders), all blanks behave in approximately the same way with regard to the reflection. Qualitative differences are not the result of the colour of the blank, but rather of the materials used. Sony DADC uses blanks coated or dyed with phthalocyanine, combined with top-quality silver alloy for the reflection layer.

The result is extremely durable CD-Rs with excellent reflective properties. These properties ensure outstanding compatibility with various CD-R burners over the entire range of 1x – 40x recording speed.

Customer-specific finishes

Surface printing

• Serigraphy: 34 lines/cm 1-6 Pantone colour resolution
• Picture print: 54 lines/cm 4 process colours as in offset
• Offset print: 80 lines/cm, cyanine/yellow/magenta/black

Unprinted with surface coatings

• Thermal varnish (transparent or white)
• Inkjet varnish (transparent or white)

For more information, please contact your Customer Service Representative.