| 摘要 |
The present invention relates to an ink composition comprising a colouring agent dissolved or dispersed in a fluid carrier medium, characterised in that: a) the fluid carrier medium is provided at least in part by one or more polymerisable materials, notably polymerisable monomers or oligomers, which are capable of being polymerised under the action of actinic radiation; and b) the colouring agent is initially translucent to the actinic radiation, but undergoes a change upon exposure of the composition to the actinic radiation to form a coloured form of the colouring agent. The invention also provides a method for forming images by applying the ink composition to a substrate and curing it with actinic radiation, notably by exposure to UV light. |
