申请人:FUJI PHOTO FILM CO., LTD.
公开号:US20030191023A1
公开(公告)日:2003-10-09
The present invention provides a thermosensitive recording material comprising a support and a thermosensitive recording layer containing, as color forming components, an electron donating dye precursor encapsulated in microcapsules and an electron accepting compound, the electron accepting compound containing a salicylic acid metal salt represented by the following General Formula (1):
1
wherein R
11
, R
12
, R
13
, and R
14
independently represent one of a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, an alkylsulfonyl group, an arylsulfonyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an acyloxy group, an acyl group, a carbamoyl group, a sulfamoyl group, a sulfonamide group, a cyano group, and a nitro group; two adjacent groups in R
11
, to R
14
may bond to each other to form a ring; M represents a metal ion having a valence of
n
; and
n
represents an integer of from 1 to 3.
本发明提供了一种热敏记录材料,它包括一个支撑体和一个热敏记录层,支撑体和热敏记录层含有作为成色成分的封装在微胶囊中的电子捐赠染料前体和一个电子接受化合物,电子接受化合物含有由以下通式(1)表示的水杨酸金属盐:
1
其中 R
11
, R
12
, R
13
和 R
14
分别代表氢原子、卤素原子、烷基、芳基、烷氧基、芳氧基、烷硫基、芳硫基、烷基磺酰基、芳基磺酰基、烷氧羰基、芳氧羰基、酰氧基、酰基、氨基甲酰基、氨基磺酰基、磺酰胺基、氰基和硝基中的一种;R 11 中的两个相邻基团
11
与 R
14
中的两个相邻基团可相互键合形成一个环; M 代表一个金属离子,其化合价为
n
且
n
代表 1 至 3 的整数。