Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
1997-05-06
1999-01-12
Hamilton, Cynthia
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
430331, 430329, 510257, 510202, 510176, 510206, C09D 1000
Patent
active
058589406
ABSTRACT:
A hardened image is removed from printing plates by a solution of formic acid and hydrofluoric acid. In one embodiment, the solution further includes a buffer solution to maintain the oleophilic properties of the substrate for printing.
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Hamilton Cynthia
Wilson Ray G.
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