申请人:Nippon Soda Co., Ltd.
公开号:EP2612847A1
公开(公告)日:2013-07-10
An object of the present invention is to provide a recording material or a recording sheet that is excellent not only in whiteness of a background but also in storage property for a background and an image, and further has excellent dynamic sensitivity. In order to achieve the object, a phenol compound represented by Formula (I) [wherein R1 represents a hydroxyl group or a halogen atom, p represents 0 or an integer of 1 to 5, R2 and R3 each independently represent a hydrogen atom or a C1-C6 alkyl group, R1 represents a hydrogen atom, a C1 alkyl group, an optionally substituted phenyl group or an optionally substituted benzyl group; and a bond shown with a wavy line represents E- or Z-form, or a mixture thereof] and having a color space b* of 10 or less, and preferably having brightness by Hunter of 75 or more, is used as a recording material.
本发明的目的是提供一种记录材料或记录薄片,它不仅在背景白度方面,而且在背景和图像的存储性能方面都非常出色,并进一步具有出色的动态灵敏度。为了实现上述目的,由式(I)代表的苯酚化合物[其中 R1 代表羟基或卤原子,p 代表 0 或 1 至 5 的整数,R2 和 R3 各自独立地代表氢原子或 C1-C6 烷基,R1 代表氢原子、C1 烷基、任选取代的苯基或任选取代的苄基;用波浪线表示的键代表 E 形或 Z 形,或它们的混合物],色空间 b* 为 10 或以下,最好亮度为 75 或以上(按亨特计算),可用作记录材料。