Glossy inkjet recording medium and methods therefor

A method of manufacturing an inkjet-receiving medium comprising the steps of:

• (a) providing a support or intermediate material in the manufacture of the support;
• (b) treating the support or intermediate material with a water-soluble, essentially colorless, non-reactive salt of a multivalent metal cation;
• (c) coating upon one or each side of the support at least one porous ink-receiving layer, including a porous ink-receiving top layer that is coated from an aqueous coating composition consisting essentially of non-cationic components, such that the aqueous coating composition is anionic at the coating PH;
• wherein non-eationic components comprise binder and anionic particles of average particle size less than 2.5 micrometers, wherein the anionic particles comprise at least 50% of total solids by weight of the porous ink-receiving top layer, such that the water-soluble salt of a multivalent metal cation diffuses into the at least one porous ink-receiving layer, wherein the porous ink-receiving top layer comprises 100 parts inorganic pigment and 0.5 to 50 parts of polymeric binder, and wherein the binder comprises hydrophilic binder alone or in combination with hydrophobic binder;
• (d) drying the coating;
• and
• (e) optionally calendering the coating.

A method of manufacturing an inkjet-receiving medium comprising the steps of:

• (a) providing a support or intermediate material in the manufacture of the support;
• (b) treating the support or intermediate material with a water-soluble, essentially colorless, non-reactive salt of a multivalent metal cation;
• (c) coating upon one or each side of the support a porous ink-receiving top layer that is coated from an aqueous coating composition consisting essentially of non-cationic components, such that the aqueous coating composition is anionic at the coating pH;
• wherein the porous ink-receiving top layer on one or each side of the support is the only porous ink-receiving layer on a side of the support, and the non-cationic components comprise binder and anionic particles of average particle size less than 2.5 micrometers, wherein the anionic particles comprise at least 50% of total solids by weight of the porous ink-receiving top layer, such that the water-soluble salt of a multivalent metal cation diffuses into the porous ink-receiving top layer;
• (d) drying the coating;
• and
• (e) optionally calendering the coating.