| 摘要 |
A novel impulse ink jet ink for use with an ink jet system having material subject to corrosion by said ink is disclosed. The subject ink comprises a fatty acid vehicle, a colorant, and amounts of anti-oxidant, preferably an alkylated hydroquinone, which are effective to substantially reduce the rate of corrosion on metallic parts of the system. The preferred anti-oxidant, which comprises 0.1-5 wt % of the ink, is an alkylated hydroquinone, particularly butylated hydroquinone. The subject ink preferably comprises an oleic acid vehicle, and a vehicle additive selected from the group consisting of aromatic alcohols, aromatic ethers, dimethylsulfoxides, alkyl pyrrolidones, methoxy- and ethoxy- triglycols, aliphatic ketones, and mixtures thereof. The corrosive nature of such inks is potentiated by the relatively high percentages of the vehicle-soluble dyes in the ink. Such dyes are present in amounts up to 20 wt % of the ink.
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