Libra Speed LIS
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Technical Data Sheet Screen printing ink for PVC self-adhesive Glossy, vacuum-formable, highly block-foils, rigid PVC, polystyrene, ABS, SAN, resistant, very fast drying, very good acrylics, polycarbonate, paper, paste- mesh opening, medium opacity board, and cardboard Field of Application Substrates Libra Speed LIS is suited for the following substrates: • Acrylics (PMMA) • PVC self-adhesive foils • Rigid PVC • Polystyrene (PS) • Polycarbonate (PC) • ABS / SAN • Paper, pasteboard, cardboard Since all the print substrates mentioned may be different in printability even within an individual type, preliminary trials are essential to determine the suitability for the intended use. Field of use Libra Speed LIS is highly suitable for the production of advertising panels and displays, or decals on fast running fully automatic machines. LIS excels thanks to a hard ink film and a high block resistance but must be tested for its suitability on plasticized and highly flexible substrates (e. g. soft PVC) before printing. For the production of double-sided stickers, we do not recommend LIS but more flexible ink systems such as Libra Print LIP or Libra Gloss LIG. Two basic colour shades of LIS are available for boards of polystyrene which can be written onto with chalk. LIS can also be processed with a spray gun, but preliminary trials are necessary for this process. In order to avoid surface irregularities, we recommend to filter the thinned ink (25 pm screen) before processing. Characteristics Very good mesh opening for standard and 4-colour process shades, i.e. printability of LIS is very simple and easy. LIS is highly suitable for flat-bed or cylinder printing machines but can also be processed in manual printing or on semi-automatic machines. Printing speed up to 2500 prints/ hour. Gloss level Libra Speed LIS is glossy with the following gloss values (angle 60°, fabric 120-34, white self-adhesive foil). Value 100 means high-gloss whereas value 1 is deep matt. Standard shades: 60-70 gloss units Print Varnish LIS 910: 60-70 gloss units 4-colour process shades: 45-55 gloss units Ink Adjustment The ink should be stirred homogeneously before printing and if necessary during production. Drying Physically fast drying, at 20 °C air temperature to be overprinted within 4-6 min, at 40 °C in a tunnel dryer stackable after 20-30 sec. Drying speed and block resistance are reduced by about 20 % when overprinting. The times mentioned above vary according to the substrate, the ink film thickness, drying conditions and the auxiliaries used. Fade resistance Pigments of excellent fade resistance (blue wool scale 7-8) are used for the Libra Speed LIS basic shades. Provided a professional processing and max. addition of 50% varnish or white to the standard shades, all basic shades are suitable for an outdoor use of up to 3 years referred Marabu GmbH & Co. KG • Phone +49 7141 6910 • info@marabu-inks.com • www.marabu-inks.com

Technical Data Sheet to the middle European climate. A full-area coating with Print Varnish LIS 911 onto the whole surface will extend the possible outdoor exposure time to 4 years. When using the highly fade-resistant shades of the 7xx series, outdoor resistance can be increased to max. 5 years if placed vertically and referred to the middle European climate, north of the forty-fifth degree of latitude. In countries with higher exposure to sunlight (between the 40th parallel north and 40th parallel south) the outdoor resistance decreases. Due to the required brilliance, the PANTONE shades...

Technical Data Sheet Owing to their comparatively good light fastness, the basic shades 033/036/055/056/ 058/059/067/068/070/073 should be used for combinations with the highly lightfast colour shades 720 - 764. If printed onto the reverse side of the substrate, the brightened white shade LIS 971 with an optimized degree of white is available for vertical or backlit illumination. Furthermore, there is one shade available for printing onto polystyrene for chalk-writeable boards (fabric recommended 77-55 to 100-40). All shades are intermixable. Mixing with other ink types or auxiliaries must...

Technical Data Sheet be used to rectify flow problems on critical substrates. If an excessive amount is added, flow problems are increased and adhesion may be reduced, especially when overprinting. The use of ES may reduce the degree of gloss. The cleaners UR 3 and UR 4 are recommended for manual cleaning of the working equipment. Cleaner UR 5 is recommended for manual or automatic cleaning of the working equipment. For spray coating, Spray Thinner 7037 should be used, or for polystyrene PSV (addition approx. 30-40%) after preliminary trials. Printing Parameters All types of commercially...