Developer compositions for heavy-duty lithographic printing plates
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United States of America Patent
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Apr 18, 1989
Grant Date -
N/A
app pub date -
Nov 30, 1987
filing date -
Nov 30, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A developer composition for heavy duty printing plates which comprises in admixture: (a) propylene glycol monomethyl ether or dipropylene glycol monomethyl ether; and (b) benzyl alcohol and/or phenoxyethanol; and (c) ethylene carbonate and/or propylene carbonate; and (d) ethylene glycol diacetate; and (e) sodium benzoate and/or lithium benzoate; and (f) benzoic acid and/or citric acid; and (g) ethylene glycol, propylene glycol and/or glycerin; and (h) sufficient water to formulate an effective developer; wherein the percentages are based on the weight of the developer composition.
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