| The Ulano Corporation gained worldwide recognition within the graphic arts industry with the invention and promotion of the first masking film: Rubylith®. Rubylith® is used in every segment of the graphic arts and has gained such prominence that the Rubylith® brand has become synonymous with masking film. Ulano continues to produce and distribute Rubylith® and Amberlith® products to a broad graphic arts customer base, which includes the screen printing industry. Rubylith® is a red masking film, which is suited for use with orthochromatic films. Rubylith® is safe for use with camera speed darkroom films as well as indirect gelatin stencil films and diazo, diazo acrylic, or SBQ sensitized stencil films or emulsions. Rubylith® is primarily used in the camera and plate making operations for offset lithography, flexography, gravure, and screen processes where orthochromatic films and plates are used. Amberlith® is an amber masking film. Amberlith® is safe for use with indirect gelatin stencil films and diazo, diazo acrylic, or SBQ sensitized stencil films or emulsions. Amberlith® is not safe for use with camera speed darkroom films. Amberlith® is used primarily in the production of stencils for screen process printing. The amber film is easier to see through than the red, particularly when several sheets of film are overlaid to produce color separations. Amberlith® A3A is a high tack amber film coated onto 300-gauge polyester. Amberlith® 3DA is a quick stripping amber film coated onto 300-gauge polyester. Rubylith® RM3 is a high tack ruby film coated onto 300-gauge polyester. Rubylith® and Amberlith® brand masking films are light safe knife cut films coated onto a polyester backing sheet. These films can be cut manually or on a plotter to produce masks for film contacting and plate making and film positives for photographic stencil production. Amberlith and Rubylith have an emulsion thickness range of 1.1 - 1.2 mils. |
