Coated papers

A coated paper which comprises (a) a substrate;

• (b) thereover and thereunder a hydrophobic barrier layer comprised of a water insoluble component, and a water soluble anticurl agent;
• (c) an image receiving coating layer situated on each hydrophobic barrier layer, said coating comprising (1) a polymeric binder, (2) an antistatic agent, (3) a lightfastness inducing agent, (4) a filler, and (5) an optional biocide.

A printing process which comprises incorporating into an ink jet printing apparatus containing an aqueous ink a coated paper which comprises (a) a substrate;

• (b) a hydrophobic barrier layer comprised of a water insoluble component, and a water soluble or alcohol soluble anticurl agent, said hydrophobic barrier layer being present on both sides of the substrate;
• (c) an image receiving coating situated on each hydrophobic barrier layer, said image receiving coating being suitable for receiving images of an aqueous ink, said coating comprising (1) a polymeric binder, (2) a dye fixative, (3) a lightfastness inducing agent, (4) a filler, and (5) a biocide;
• and causing droplets of the ink to be ejected in an imagewise pattern onto the coated paper, thereby generating images on the coated paper.

A coated paper comprised of (a) a supporting paper substrate coated thereunder and thereover with a hydrophobic barrier layer comprised of a blend of polydimethylsiloxane and the anticurl agent glycerol ethoxylate-b-propoxylate triol;

• (b) an image receiving coating situated on each hydrophobic barrier layer, said image receiving coating being suitable for receiving images of an aqueous ink, said coating being formed from (1) as the polymeric binder, an acrylic emulsion latex, (2) the dye fixative decamethylene bis trimethyl ammonium bromide, (3) the lightfastness inducing composition comprised of the UV absorbing compound poly›N,N-bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,6-hexane diamine-co-2,4-dichloro-6-morpholino-1,3,5-triazine), and the antioxidant compound N,N'-.beta.,.beta.'-naphthalene-.rho.-phenylenediamine, (4) the filler, calcium carbonate, and (5) the biocide poly(oxyethylene(dimethylamino)ethylene(dimethylamino)ethylene dichloride).

A coated paper comprised of (a) a supporting paper substrate coated with a hydrophobic barrier layer comprised of a blend of polydimethylsiloxane and the anticurl agent trimethylolpropane propoxylate triacrylate, said hydrophobic barrier layer being present on both sides, of the substrate;

• (b) an image receiving coating situated on the top of both hydrophobic barrier layers, said image receiving coating being suitable for receiving images of an electrostatic toner composition, said coating being formed from comprising (1) a polymeric binder polyester latex, (2) an antistatic agent ethyl triphenyl phosphonium bromide, (3) a lightfastness inducing composition containing a mixture of the UV absorbing compound 2-›2'-hydroxy-3,5-di-(1,1-dimethyl benzyl)phenyl!-2H-benzotriazole and the antioxidant compound N,N'-.beta.,.beta.'-naphthalene-.rho.-phenylenediamine, (4) a filler of calcium carbonate, and (5) the biocide potassium N-hydroxymethyl-N-methyl-dithiocarbamate.