Diazotype material containing starch in a polymeric binder

Details Diazotype material containing starch in a polymeric binder Diazotype material containing starch in a polymeric binder

G - Physics

03

C

96/159

G03C 1/52 (2006.01) G03C 1/60 (2006.01)

Patent

CA 1064308

Abstract There is provided an improved diazotype material which can be developed by a small quantity of developing liquid and which comprises a support which is provided with a light-sensitive layer which contains at least one diazocompound, a binder and filler, characterized in that the bind- er comprises a condensation product of an aminocompound with formaldehyde and a hydrophilic, water-soluble polymer, and in that the filler comprises starch particles, whereby the weight proportion hydrophilic polymer to starch particles amounts to 1 to at least 5. There is further provided a process for the manufacture of diazotype copies which utilizes the above material.

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