A: We’re pleased to announce that a new PRINT PROFILE LIBRARY is now available and our first profile range release is for HP Latex printers. If you are not using a HP Latex printer then we suggest using a generic gloss vinyl profile for our white self-adhesive vinyl. In our experience, many of the profiles for perforated window films use unnecessarily high amounts of ink.
A: Due to the nature of our Grayliner technology, the edge detection system may not pick up the edge of the material during the initial loading procedure. This does seem to vary from individual printer to individual printer. There are a few possible solutions:
Clean the lens of the edge-detector, this normally fixes the problem, if not then try step 2.
Load the material as a mesh (not in the RIP, loading settings only). If this doesn’t help then try step 3.
Apply a strip of white vinyl along the edges of the first 3 feet of material – the extra length enables you to advance the material after the initial loading and then peel the masking tape off.
A. If this does occur then choose the Manual Assisted Load option. In this mode the pinch rollers in the printer are raised and you can load the material. The carriage will be off to one-side to allow you to use the material guides. These are necessary to be able to print the material properly, and reduce the risk of headstrikes. During loading, secure the material directly on the take up unit and set it to “always apply tension”. With this mode the material does not stick in the curing unit.
A: Due to the nature of perforated window film, the vacuum levels may need to be increased to stop the material from wrinkling. Try masking off any remaining areas of the printing plate to ensure there is 100% vacuum across the width of the material.
A: Contra Vision perforated window film is available at different levels of transparency, measured by the percentage of the total area that is represented by the perforated holes. As an example, Contra Vision 30% transparency white on black perforated window film comprises of 30% holes and 70% solid material. Sunlight is blocked by the solid material, so 30% transparency material blocks 70% of solar radiation so giving a 70% reduction in UV light and glare.
Many branded dilute-with-water windshield washer concentrates and ready-made windshield washer solutions now contain silicone-based chemicals that are designed to prevent road debris sticking to vehicles’ glass and to promote the beading of rain so that it blows off windshields and doesn’t smear when the wipers are used. This chemical additive builds into a bonded layer on anything it touches, including painted surfaces, and will also prevent applied self-adhesive materials from fully adhering. The layer is invisible, may be difficult to test for and detect, and must be removed before graphics are applied.
We recommend that in all cases where graphics are applied to side and rear vehicle glazing that the following cleaning regime is practiced:
1: Completely removed any obvious soiling with soap and water. Use dish washing soap. It does not contain waxes unlike many vehicle specific cleaning detergents.
2: When the glazing is dry, carefully clean the window again with a clean piece of tissue, kitchen paper is fine, that has been generously wetted with IPA (at least 70% and preferably higher) then dry with a second clean piece of kitchen paper.
3: Repeat 2 but paying particular attention to the edges of the glass.
4: Check for paper dust or adhering fibres before applying graphics as per further instructions relating to the material and its use.
A: Durability stated in our technical data sheets is for unprinted and untreated material correctly applied to an inert, vertical substrate subject to Mid-European weathering conditions. Some printing inks and drying or curing regimes may reduce the expected lifetime of the printed graphic. Please consult your ink manufacturer for guidance. Incorrect application methods, inadequate window cleaning and preparation and incompatible window treatments may reduce the expected lifetime of the applied material whether printed or unprinted, overlaminated or unlaminated. Mechanically sustained damage, chemical damage and UV-degradation to printed, unprinted, laminated or unlaminated material may also reduce expected durability. All perforated window films are especially vulnerable to damage along the edges and corners, which may lead to premature failure. Please refer to our technical data sheets page to find out the typical application life of a particular product.
A. Contra Vision perforated window films are typically produced using REACH compliant uncoated pvc. They can be printed with any printer designed to print uncoated plastic materials, using solvent, mid solvent, latex and UV-cured inks. They cannot be printed with domestic or office printers designed to print on paper or plastic coated with an ink-receptive layer.
A. Printers requiring unprinted Contra Vision material can buy from our network of distributors. If you require printed Contra Vision material, we suggest you buy direct from a printer, or tell your regular supplier of printed material that you require Contra Vision material.
A. Contra Vision® Performance™ and Contra Vision® Campaign™ perforated window films are adhesive-coated white on black calendered pvc, presented on a paper-based, silicone-coated liner. The pvc complies with European REACH standards, so does not contain the undesirable substances often found in other pvc products.
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