A photographic element comprising a support having thereon at least one layer provided by coating a composition comprising a polymer mordant latex of crosslinked polymer comprising a monomer unit represented by formula (I):
wherein Q represents a quaternary nitrogen atom; Z represents an atomic group necessary for forming a nitrogen-containing heterocyclic ring formed with Q; said nitrogen-containing heterocyclic ring further contains at least one hetero atom in addition to the quaternary nitrogen atom shown by Q; R' represents a hydrogen atom or a methyl group; and X⊖ represents an anion.
The polimeric mordant causes reduced chemical change or decomposition of dye image by the action of light, and which provides transferred dye images in a short period of time.
一种感光元件,包括一个支承件,该支承件上至少有一层通过涂布一种组合物提供的感光层,该组合物包括由式(I)代表的单体单元组成的交联聚合物的聚合物媒染胶乳:
其中 Q 代表季氮原子;Z 代表与 Q 形成含氮杂环所需的原子团;所述含氮杂环除 Q 所示的季氮原子外还含有至少一个杂原子;R'代表氢原子或甲基;以及 X⊖ 代表阴离子。
多聚媒染剂在光的作用下可减少
染料图像的
化学变化或分解,并可在短时间内提供转移的
染料图像。