One of the subsidiaries Poychrome had was a paper coating company in Philadelphia called Speidel.
In late 1960 I frequented Speidel to use a coating machine equipped to handle solvent. Speidel's major product was at that moment a photosensitive paper used then for a diazo-printing machine. It is a product long forgotten now but was being used widely at that time for copying large documents such as engineering and architectural documents. However by then newer copying technologies started to erode such application. Electrostatic copying paper was one of the technologies we were interested in as an alternative product, but we were unable to produce one on the water based coating machines we had at Speidel. This Chrome-Glo paper had fluorescent pigment coating which the Speidel coating machine was able to handle. We hoped these paper would be widely used for window display advertisement but it was not successful enough to rescue Speidel diazo business. Soon after Polychrome closed this plant. This booklet contains several color samples still brilliant to this day.
Thank you Erica for digging this out from your shelf.
