an ink jet recording sheet comprises a support carrying an ink - receiving layer , this layer comprising a hydrophilic polymer , preferably poly and a poly of the formula : ## str1 ## wherein each of r 1 , r 2 , r 3 , r 4 , r 5 and r 6 is independently alkyl of from 1 to 4 carbon atoms ; each of r 7 , r 8 and r 9 is independently alkyl of from 1 to 18 carbon atoms and the total number of carbon atoms in r 7 , r 8 and r 9 is from 13 to 20 ; each m - is an anion ; and each of a , b and c is the molar proportion of the respective repeating units .