Sun Printing
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Sun printing can be done through three processes, most commonly it is a photographic process in which the final print is produced by conventional lithographic printing processes. The process uses a film of gelatine spread on a flat and rigid surface. This is coated with a dilute solution of Potassium dichromate and dried in low light conditions. A translucent positive of the final print is secured in tight contact with the treated gelatine layer and exposed to bright…mehr

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Produktbeschreibung
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Sun printing can be done through three processes, most commonly it is a photographic process in which the final print is produced by conventional lithographic printing processes. The process uses a film of gelatine spread on a flat and rigid surface. This is coated with a dilute solution of Potassium dichromate and dried in low light conditions. A translucent positive of the final print is secured in tight contact with the treated gelatine layer and exposed to bright sunlight for a period of up to 30 minutes. During this time the sunlight and the Potassium dichromate tan the gelatine exposed to light.