| 摘要 |
PROBLEM TO BE SOLVED: To obtain high anticrystallization properties by forming a color layer of combined infrared absorbing materials and adding a disazo cyan color to an image color. SOLUTION: A color layer contains a combination of infrared absorbing materials. In addition, an image color contains a disazo cyan color shown by formula (R1 , R2 , R3 are independently nitro, hydroxy, alkyl, aryl (condensed, condensed hetero) acryl, carboxy, (alkyl, aryl) carbonyl, hydrogen, alkenyl, (cyclo, halo, cyano, hydroxy) alkyl, alkoxy, alkoxyalkyl, aryloxyalkyl, alkenylcarbonyl, amino, (alkyl, aryl) amino, halogen, sulfoneamido or arylazo; R3 , R4 can form a diaminoalkylene group by mutually bonding together at the 4th and the 5th position of a ring; R2 is hydroxy, hydrogen, alkyl or aryl; m is an integer of 1-5; n is an integer of 1-3; and x is an integer of 1-4). |
