viscosity is the viscosity of a fluid for example calcium carbonate slurry containing 28 to 32 solids and 3 to 25 parts low molecular weight partially hydrolyzed poly vinyl alcohol per 100 parts calcium carbonate which results from the shear rate generated by a brookfield viscometer no 3 spindle at 100 rpm the high solids aqueous pigment dispersion containing poly vinyl alcohol can be used to prepare ink jet paper coating compositions or can be used directly as an ink jet paper coating composition no additional binders or dispersants are needed in the coating composition a typical coating composition for ink jet paper applications contains 0 to 3 parts cationic dye fixatives such as polyethyleneimine or poly diallyldimethyl ammonium chloride and the invention will be further clarified by a consideration of the following examples which are intended to be purely exemplary of the invention the viscosity modification effect of low molecular weight partially hydrolyzed fine particle size poly vinyl alcohol on slurries of fine particle size calcium carbonate was measured an aliquot of jet coat u2122 30 precipitated calcium carbonate 500 g in a slurry containing 25 to 30 solids was agitated with a high shear dispersator type laboratory mixer various amounts of airvol u00ae 203s poly vinyl alcohol powder in which 99 of the powder particles have an average particle size of less than 180 u03bcm were added to the agitated mixture at a rate of 1 per 10 seconds agitation of the mixture was continued for 15 minutes after addition of the airvol 203s in a comparative example 0 3 g of tetrasodium pyrophosphate tspp dispersant was added to the calcium carbonate slurry the.