Recording material produced using non-phenol compound
AssigneeNippon Soda Co., Ltd.
InventorsHiroshi Sakai, Tadahiro Kondo, Kayoko Tada, Shuntaro Kinoshita, Kazumi Jyujyo
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Abstract
An object of the present invention is to provide a recording material or a recording sheet using, as a color-developing agent, a non-phenol compound that is a safe compound in no danger of corresponding to an endocrine disruptor and is good in color developing performance. The non-phenol compound used in the present invention is at least one selected from the group consisting of compounds represented by the following formulas (I) to (III).
Claims8
A recording composition containing a color former, wherein the recording composition contains at least one compound selected from the group consisting of:
- a compound represented by the following formula (I):
- where:
- R1, R2, and R3 each independently represents a hydrogen atom, a halogen atom, a nitro group, a C1-C6 alkyl group, a C1-C6 alkoxyl group, a C2-C6 alkenyl group, a C1-C6 fluoroalkyl group, a N(R4)2 group, NHCOR5, an optionally substituted phenyl group, or an optionally substituted benzyl group;
- R4 represents a hydrogen atom, a phenyl group, a benzyl group, or a C1-C6 alkyl group;
- R5 represents a C1-C6 alkyl group;
- n1 and n3 each independently represents any integer of 1 to 5;
- and
- n2 represents any integer of 1 to 4;
- a compound represented by the following formula (II):
- where:
- R1, R2, R3, n2, and n3 are as defined above;
- and
- n4 represents any integer of 1 to 7);
- and
- a compound represented by the following formula (III):
- where R1, R2 , R3, n2, n3, and n4 are as defined above.
Dependencies are inferred from the claim text.