The invention discloses temperature sensitiveink, which is suitable for offset printing or flexography on a rotary press.
本发明公开了一种温变油墨，适合在轮转机上采用胶印或柔版印刷。
2
The external surface of the cup is printed with a second layer of heat sensitiveink that is revealed when hot water is poured into the cup.
在杯子的表层用上温变油墨（热敏油墨）。当热水倒入时，上面的图案慢慢发生变化。
3
In places, the ink from the original text is no more than a faint stain, so the scientists studying it need a technique that is sensitive to very low concentrations of ink.