Compositions for cleaning ink from a printing press and methods

Details Compositions for cleaning ink from a printing press and methods Compositions for cleaning ink from a printing press and methods

1993-04-30

1994-08-23

Green, Anthony

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

106243, 106311, 134 38, C09D 900

Patent

active

053404955

ABSTRACT:
Improved cleaner compositions and methods useful for removing ink from parts of a printing press are provided. The cleaner compositions comprise a fatty acid methyl ester and a nonionic surfactant which is an ethoxylated C.sub.4 -C.sub.10 alcohol. The cleaner compositions may further comprise a mixed heteric oxide of a higher chain alcohol, and water. The cleaner compositions, which are devoid of volatile organic compounds, eliminate the need to dry the parts of a printing press, particularly the rubber blanket, which need periodic cleanings during a run. The non-volatile cleaner compositions are combinable with printing ink compositions without appreciably affecting the printing characteristics of the ink. When printing is resumed while the rubber blanket is wetted with the cleaner, the cleaner becomes blended with the formed image as the image is received by the rubber blanket and the blended mixture is then printed. Printing resolution and color matching rise to meet commercial requirements within a few prints. Cleaner compositions comprising a fatty acid methyl ester and at least one volatile organic compound are also provided. In applications where the use of volatile organic compounds is desirable, the compositions of the invention allow the percentage of volatile organic compounds to be reduced while retaining good cleaning characteristics. Cleaner compositions for removing UV ink are also provided. The UV ink cleaner compositions comprise a fatty acid methyl ester and a heteric alkylene oxide of lower chain alcohol.

REFERENCES:
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patent: 4295845 (1981-10-01), Sepulveda et al.
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patent: 4504406 (1985-03-01), Dhillon
patent: 4707293 (1987-11-01), Ferro
patent: 4877556 (1989-10-01), Wilsberg et al.
patent: 4909962 (1990-03-01), Clark
patent: 5104567 (1992-04-01), Staehr
patent: 5156760 (1992-10-01), Marchese et al.
patent: 5194173 (1993-03-01), Folkard et al.

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