Patent ID: 6068373
Filing Date: 2000-05-30
Classification: B41J,B41M,Y10T

Abstract:
A method of ink jet printing which comprises applying to an ink jet recording sheet a plurality of ink droplets generated from an ink jet printer, wherein the ink jet recording sheet comprises a support carrying an ink-receiving layer, this ink-receiving layer comprising a hydrophilic polymer and a poly(vinylbenzyl quatermary ammonium salt) of the formula: ##STR4## wherein each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 is independently alkyl of from 1 to 4 carbon atoms; each of R.sup.7, R.sup.8 and R.sup.9 is independently alkyl of from 1 to 18 carbon atoms and the total number of carbon atoms in R.sup.7, R.sup.8 and R.sup.9 is from 13 to 20; each M.sup.- is an anion; and each of a, b and c is the molar proportion of the respective repeating units, the ink receiving layer comprising from about 3 to about 15 parts by weight of the hpydrophilic polymer per part by weight of the poly(vinylbenzyl quaternary ammonium salt).