Electronic Resource
Springer
Naturwissenschaften
64 (1977), S. 1-7
ISSN:
1432-1904
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
,
Natural Sciences in General
Notes:
Abstract Polaroid color photography is based on integral tripack coatings in which each emulsion layer is associated with a dye-developer layer. On development, the chemicals being supplied from a pod, the unused dye developer diffuses to a receptor layer, where the color picture is formed; the oxidized developer is immobilized. A timing layer over an acid polymer layer ensure that pH is high initially for development and then drops. In the integral form (SX-70) opacification shields the light-sensitive layers; the indicator dyes used for this are decolorized by the drop in pH.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00439885
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