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1·It has no insoluble matter separated out in storing for long term and no jamming in nozzle, and it may be used to print clear and homogeneous text and graph and without fading in water.

该墨水长期存放后，没有不溶物出现，不堵塞喷嘴，经三年试用，打印的文字、图像均匀、清晰，且遇水不褪色。