With certain (apparently) highly buffered papers like Fabriano Artistico
Extra White, it is absolutely true. And just adding oxalic to the ferric
didn't have the same effect. Other papers that aren't as buffered will
show little or no change after being soaked in oxalic acid.
Kerik
>> I ran test when this was talked about years ago and found little to
>> support it. I did not run test on a large sample of papers. I also
>> queried those that made the claim to see if they could also just add
>> some oxalic acid to their ferric and achieve the same increase in dmax.
>> I got no response.
>>
>> Or is it simply a pH issue? Years ago Martin Axxon had suggested to me
>> that he felt a lower pH paper gave a better print with PT solution.
Received on Tue Aug 9 10:15:37 2005
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