Abstract
An experimental study has been made of the diffracted-to-scattered intensity ratio before and after the printout effect, in bleached holograms recorded on AGFA-Gevaert 10E75 NAH plates. Use has been made of nine known conventional and four known reversal bleach processes and different type of developers and developer compositions. High diffracted-to-scattered intensity ratio is achieved by using potassium iodide and iodine bleach process with CW-Cl developer without any perceptible change in diffracted-to-scattered intensity ratio after the printout effect. In case of reversal bleaches, minimum change in diffracted-to-scattered intensity ratio is achieved by using potassium dichromate plus concentrated sulphuric acid bleach with CW-C2 developer.
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