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News

SIGMAGraF is first display film to offer anti-glare and anti-grafiti

Autotype International : 07 August, 2007  (New Product)
The leading global developer and manufacturer of high performance films and coatings, MacDermid Autotype, has introduced what is believed to be the world
The films are called SIGMAGraF Anti-Glare and incorporate a robust polyester base protected by a tough hardcoat upper, or outer, surface layer with an inkjet printable underside layer, for reverse printing. This creates a material that is dimensionally stable under a variety of storage, production and end-use environments, yet can easily be handled and printed using standard equipment. Two different inkjet primers are offered, the 'Plus' coating is suitable for aqueous pigment inkjet, and the 'UVjet' primer is recommended for U.V. curing ink jet printers. As the hardcoat layer is formulated to eliminate the need for filler materials, levels of image definition and colour rendition are far higher and brighter than many competing materials.

The formulation of the hardcoat layer also plays a crucial role in providing the unique combination of anti-glare and anti-graffiti properties. To eliminate the problem of glare, which is a common phenomenon with many display films, MacDermid Autotype has modified the surface characteristics of the hardcoat, producing a nano-roughened finish that reflects less that 55% of light at 60 degrees angle. Many competing materials will reflect over 90% of light at 60 degrees, creating glare that effectively 'blinds' the viewer from the image.

Similarly, the hardcoat surface layer has been specially developed to be scratch, scuff and abrasion proof. Graffiti paint can easily be cleaned with conventional isopropanol solvents or aqueous detergents, which can be used without leaving any cleaning stain residues or marks. Although graffiti can be removed from some competing films, the cleaning process often scratches the surface, and repeated cleaning will quickly require the display to be replaced. This makes SIGMAGraF Anti-Glare ideal for displays and graphics that are in high traffic areas or are prone to abuse.

SIGMAGraF Anti-Glare has been awarded anti-graffiti resistance accreditation to the standard ASTM D 6587 test, based on extensive laboratory tests. Testers were impressed that even with repeated cleaning cycles the SIGMAGraF Anti-Glare films were left graffiti and scratch-free throughout.
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