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The sodium salt tetrahydrate of 0-phenylphenol functions in an alkaline aqueous jet ink as a penetrant to accelerate drying and a bacteriostat to protect the ink from microbial degradation.
English (United States)
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Bacteriostatic Fast Drying Aqueous Jet Ink
The sodium salt tetrahydrate of 0-phenylphenol functions in an alkaline
aqueous jet ink as a penetrant to accelerate drying and a bacteriostat to protect
the ink from microbial degradation.
Described graphically, the material is two benzene rings joined by the
substitution of a hydrogen on each ring with the other benzene ring. An oxygen is
substituted for a hydrogen on one of the benzene rings by a single bond at an
ortho position from that of the junction of the benzene rings. A sodium ion is
associated with the oxygen, forming a salt, and the salt is hydrated by four water
A representative formula of the alkaline jet ink is as follows: ##
Drying time for ink of the example varies from 4.5 to 0.29 second for five
papers, with the mean being 1.9 seconds. Drying time for ink of the same
formula less the o-phenylphenol varies from 4.5 to 5.75 seconds, with the mean
being 1O.8 seconds. The o-phenylphenol has strong preservative effects by
bacteriostatic activity. * Trademark of Cordova Chemical Company. ** Trademark
of Dow Chemical Company (recommended for antimicrobial use in agriculture).