Patent ID: 8591641

Claim:
A weather-resistant dye, characterized in that the dye contains in molecules thereof not only chromophoric parent D, but also electron-accepting group Q which is connected with dye parent D through non-conjugated carbon link L to constitute D-L-Q dye molecule; said dye includes cyan dye, said cyan dye comprises compound of general formula I or mixture thereof: wherein MPc is chromophoric donating group D as phthalocyanine parent, L is the non-conjugated linking group, Q is the electron-accepting group, the HOMO energy level of Q is lower than the HOMO energy level of the dye chromophoric parent D; in the general formula I, a and c are the same or different integer of 0-3, b is an integer of 1-4, the sum of a+b+c is 2-4; M in the MPc phthalocyanine parent is hydrogen atom, metal atom or oxide, hydroxyl compound or halide thereof, Pc is phthalocyanine parent ring; R 1 and R 2 are the same or different H, alkyl of C 1-18 , aryl of C 6-12 , phenyl or naphthyl with substituent A, or (CR 3 R 4 ) n A, R 3 and R 4 are the same or different H or alkyl of C 1-4 ; A is H, OH, NH 2 , CO 2 M″ or SO 3 M″, n is 1-18; M′ and M″ are the same or different H, metal ion selected from the group consisting of Na, K, and Li, ammonium salt NH 4 , and organic ammonium salt selected from the group consisting of N(CH 4 , NH(CH 3 , NH 2 (CH 2 , NH 3 (CH 3 ), NH(CH 2 CH 2 OH) 3 , NH 2 (CH 2 CH 2 OH) 2 and NH 3 CH 2 CH 2 OH; L is —NR 3 (CR 4 R 5 ) m NR 6 — or —NR 3 (CR 4 R 5 ) m —, wherein R 5 and R 6 are the same or different H or alkyl of C 1-4 ; m is the same or different integer 1-4; Q has general formula Q 2 ; R 9 is H, Cl, Br, CN, CF 3 CH 3 SO 3 M″ or CO 2 M″; x is integer of 0-3; and Z 1 and Z 2 are the same or different O or C(CN) 2 .