You are correct.
Originally Posted by hrst
Generally speaking, dyes do need to be in close contact with the AgX, however there are some rather interseting ideas or theories on what might be possible under special conditions, although in the "dip" method, there was enough time allowed for the dyes to be fully absorbed/adsorbed... so no fancy theories are needed.
I guess it is possible that some coating methods would not allow for such absorption to occur and so the desired sensitization might not take effect.
at least not immeadiately.
However, OTOH, it is well known that many chemicals can be either
mixed into the emulsion
coated as a separate layer and still be of some utility.
Sometimes the chemicals can even be added to the developer or the packaging.
Last edited by Ray Rogers; 02-02-2011 at 11:47 AM. Click to view previous post history.