Method of making a projection viewable transparency comprising an electrostatographic toner image
AssigneeEastman Kodak Company
InventorsMuhammed Aslam, William Light
Life of this patent
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Abstract
A method of fusing an electrostatographic colored toner image on a transparent support to provide a projection viewable color transparency exhibiting excellent color clarity. The support comprises a polymer layer bearing the color toner image. The toner image and the polymer forming the layer on the support have a loss tangent value of at least 1.6. The transparent element is subjected to fusing in three distinct zones; a fusing zone where it is contacted with a textured fusing member, a cooling zone where contact with the fusing member is maintained and the toner image is cooled and a release zone where the toner image is released from the fusing member at a temperature where no toner image or polymer layer offset occurs.
Claims14
A fusing method for making a transparency capable of projecting an electrostatographic colored toner image that exhibits excellent color clarity, which method comprises:
- a. providing an element having a transparent support comprising a polymer layer bearing an image in colored toner particles that exhibit a loss tangent (tan .delta.) of at least 1.6 upon fusing the image with heat and pressure, the polymer forming such layer also having a loss tangent (tan .delta.) of at least 1.6;
- b. passing the element successively through a fusing zone, a cooling zone and a release zone;
- c. within the fusing zone, bringing the image and polymer layer into pressure contact with a textured surface of a fusing member at a temperature that fuses the image to the support and causes the polymer layer to flow, the textured surface being capable of providing a low-luster fused toner image;
- d. maintaining contact between the fused image and the fusing member within the cooling zone while reducing the temperature of the fusing member;
- and
- e. separating the fused image from the fusing member within the release zone at a temperature where the image and the polymer layer do not offset.
Dependencies are inferred from the claim text.