Ink used in inkjet recording, method for inkjet recording, inkjet recording head and manufacturing method therefor, method for treating inkjet recording head, and inkjet printer

摘要

An ink for use in thermal inkjet recording contains a dye, water, and an organic phosphonic compound represented by the formula: Alternatively, an inkjet recording head may be treated with the organic phosphonic compound represented by formula (1) so that the surface of a heater device of the inkjet recording head is treated with the organic phosphonic compound represented by formula (1).