Toners for polyesters

A molding or fiber grade polyester having copolymerized therein, in an amount sufficient to improve the apparent whiteness of the polyester, at least one blue 1,4-bis(2,6-dialkylanilino) anthraquinone compound of Formula (I) ##STR52## wherein:

• R is selected from the group consisting of hydrogen, C.sub.1 -C.sub.6 alkyl, halogen, carboxy, and C.sub.1 -C.sub.6 ##STR53## R.sub.1 and R.sub.2 are independently C.sub.1 -C.sub.6 -alkyl;
• R.sub.3 is selected from the group consisting of hydrogen, halogen, C.sub.1 -C.sub.6 -alkyl, substituted C.sub.1 -C.sub.6 alkyl, hydroxy, C.sub.1 -C.sub.6 -alkoxy, substituted C.sub.1 -C.sub.6 -alkoxy, cyano, thiocyano, C.sub.1 -C.sub.6 -alkylthio, substituted C.sub.1 -C.sub.6 -alkylthio, C.sub.1 -C.sub.6 -alkylsulfonyl, substituted C.sub.1 -C.sub.6 -alkylsulfonyl, C.sub.1 -C.sub.6 -alkoxycarbonyl, carboxy, aryloxy, arylthio, arylsulfonyl, and SO.sub.2 N(R.sub.4)R.sub.5 X when m and/or n are zero;
• R.sub.4 is selected from the group consisting of hydrogen, C.sub.1 -C.sub.6 -alkyl, substituted C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.8 -alkenyl, C.sub.3 -C.sub.8 -alkynyl, C.sub.3 -C.sub.7 -cycloalkyl and aryl;
• R.sub.5 is a linking group selected from the group consisting of C.sub.1 -C.sub.8 -alkylene, C.sub.1 -C.sub.6 -alkylene-Z--C.sub.1 -C.sub.6 -alkylene, arylene-C.sub.1 -C.sub.6 -alkylene, arylene-Z--C.sub.1 -C.sub.6 alkylene, C.sub.3 -C.sub.7 -cycloalkylene, C.sub.1 -C.sub.6 -alkylene-cycloalkylene-C.sub.1 -C.sub.6 -alkylene, C.sub.1 -C.sub.6 -alkylene-arylene-C.sub.1 -C.sub.6 -alkylene, and C.sub.1 -C.sub.6 -alkylene-Z-arylene-Z--C.sub.1 -C.sub.6 -alkylene, wherein Z is selected from --O--, --S-- and SO.sub.2 ;
• X is hydrogen or a polyester reactive group;
• and
• m and n are independently 0 or 1;
• with the proviso that at least one polyester reactive group is present;
• along with at least one red anthraquinone or anthrapyridone compound selected from formulae (II)-(X) below:
• ##STR54## wherein:
• R.sub.6 is selected from the group consisting of hydrogen, C.sub.1 -C.sub.6 -alkyl, substituted C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.7 -cycloalkyl and aryl;
• R.sub.7 is hydrogen or one to three groups selected from C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -substituted alkyl, C.sub.1 -C.sub.6 -alkanoylamino, halogen, C.sub.1 -C.sub.6 -alkyl C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.6 -alkylthio;
• R.sub.8 and R.sub.9 are the same or different and are selected from the group consisting of C.sub.1 -C.sub.6 -alkyl, substituted C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.7 -cycloalkyl and aryl;
• R.sub.10 is selected from the group consisting of C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.7 -cycloalkyl and aryl;
• R.sub.11 is selected from the group consisting of hydrogen, C.sub.1 -C.sub.12 -alkyl, substituted C.sub.1 -C.sub.12 -alkyl, C.sub.3 -C.sub.7 -cycloalkyl and aryl;
• R.sub.12 is hydrogen or one to three groups selected from the group consisting of C.sub.1 -C.sub.6 -alkyl, substituted C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, substituted C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.6 -alkylthio, substituted C.sub.1 -C.sub.6 -alkylthio, halogen, hydroxy, C.sub.1 -C.sub.6 -alkanoylamino, aroylamino, C.sub.1 -C.sub.6 -alkylsulfonylamino and arylsulfonylamino;
• R.sub.13 and R.sub.14 are selected from hydrogen, cyano and CO.sub.2 R.sub.10 ;
• R.sub.15 is R.sub.4 or R.sub.5 X as previously defined;
• L is --CO-- or --SO.sub.2 --;
• X is as previously defined;
• m is 0 or 1;
• and p is 1 or 2;
• with the provisos that R.sub.13 is hydrogen when m is 0 and at least one polyester reactive group is present.