ABSTRACT
Paper choice is important for chrysotype as many can have an adverse reaction with the sensitizer. This chapter discusses paper and its impact on chrysotype color. It’s helpful to know about different paper types, different paper manufacturing attributes and common additives because all of these will affect the appearance and colour of the image as well as its archival stability. Papers can have three surface finishes as a result of their treatment in manufacture – ‘Hot Pressed’, ‘Not Pressed/Cold Pressed’ or ‘Rough’. Two methods of sizing and three types of sizing agent – alkyl ketene dimer, gelatin and starch are generally used in paper, which can all have a different effect on the colour of print. Blistering can appear in the wet processing stage but also when increasing humidity in the paper. Water can seep through the membrane formed by the gelatin, get trapped underneath and form a blister.
