The treated substrate comprises a fibrous polyamide substrate having applied thereto a partially sulfonated novolak resin and {TAIL ~ polymethacrylic acid}, copolymers of methacrylic acid, or combinations of said polymethacrylic acid and {HEAD ~ said copolymers} of methacrylic acid 
The treated substrate comprises a fibrous polyamide substrate having applied thereto a partially sulfonated novolak resin and { TAIL ~ polymethacrylic acid } , copolymers of methacrylic acid , or combinations of said polymethacrylic acid and { HEAD ~ said copolymers } of methacrylic acid
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH