Abstract: The present disclosure is drawn to imaging media. In one example, an imaging medium includes a substrate, a color layer on the substrate, and an opaque porous concealing layer over the color layer. The color layer includes a pattern of color regions, wherein individual color regions include multiple adjacently-applied colors. The opaque porous concealing layer has a coat weight from 2 gsm to 10 gsm. The opaque porous concealing layer includes transparent inorganic particles having a refractive index from 1.3 to 3, and void spaces between the transparent inorganic particles are occupied by air.

Abstract: An example of a treatment composition for a packaging liner includes a fixing agent, a wax, and a latex. The fixing agent is selected from the group consisting of water-soluble mono-valent metallic salts, water-soluble multi-valent metallic salts, and combinations thereof. A total dry solids content of the example treatment composition ranges from about 5 wt % to about 40 wt % of a total weight of the treatment composition.

Abstract: The present disclosure is drawn to ink fixative solutions, which can consist essentially of a polyvalent metal salt, a holdout additive, and water. The polyvalent metal salt can be present in an amount from about 1 wt % to about 5 wt %, with respect to the entire weight of the ink fixative solution. The holdout additive can be present in an amount from about 2 wt % to about 20 wt %, with respect to the entire weight of the ink fixative solution. The holdout additive can be polyethylene glycol, glycerol, carboxy methyl cellulose, hydroxy ethyl cellulose, a fatty acid, a fatty acid ethoxylate, or combinations thereof.

Abstract: Disclosed is a coated print media having a coating layer formed on at least one surface of a media substrate. The coating layer includes a binder and co-milled particles of precipitated calcium carbonate and zeolite. The specific zeolite used is either Zeolite A or Zeolite X, or combination of both. The co-milled particles are produced by milling precipitated calcium carbonate in the presence of zeolite, whereby the co-milled particles take on the form of aggregates.

Abstract: The present disclosure is drawn to ink fixative solutions, which can consist essentially of a polyvalent metal salt, a holdout additive, and water. The polyvalent metal salt can be present in an amount from about 1 wt % to about 5 wt %, with respect to the entire weight of the ink fixative solution. The holdout additive can be present in an amount from about 2 wt % to about 20 wt %, with respect to the entire weight of the ink fixative solution. The holdout additive can be polyethylene glycol, glycerol, carboxy methyl cellulose, hydroxy ethyl cellulose, a fatty acid, a fatty acid ethoxylate, or combinations thereof.

Abstract: Disclosed is a coated print media having a coating layer formed on at least one surface of a media substrate. The coating layer includes a binder and co-milled particles of precipitated calcium carbonate and zeolite. The specific zeolite used is either Zeolite A or Zeolite X, or combination of both. The co-milled particles are produced by milling precipitated calcium carbonate in the presence of zeolite, whereby the co-milled particles take on the form of aggregates.

Abstract: Disclosed is a coated print media having a coating layer formed on at least one surface of a media substrate. The coating layer includes a binder and co-milled particles of precipitated calcium carbonate and zeolite. The specific zeolite used is either Zeolite A or Zeolite X, or combination of both. The co-milled particles are produced by milling precipitated calcium carbonate in the presence of zeolite, whereby the co-milled particles take on the form of aggregates.

Abstract: The present invention is drawn to a composition for cast-coating on ink-jet media. The composition includes a liquid vehicle, silica particulates, and an internal release agent. The composition is substantially free of polymeric binder and can improve the glossiness of a porous particulate-coated ink-receiving media by at least 2 gloss units at 20 degrees. The silica particulates can be suspended in the liquid vehicle at about 1-35 wt %, and can have a particle size of less than about 150 nm. The internal release agent can be present at about 0.5-10 wt %.

Abstract: A coated medium for inkjet printing, which includes a supporting substrate and a coating layer formed on at least one side thereof. The coating layer includes at least one binder and at least two different inorganic pigments: modified calcium carbonate (MCC) and either precipitated calcium carbonate (PCC) or clay.

Abstract: The present invention is drawn to a composition for cast-coating on ink-jet media. The composition includes a liquid vehicle, silica particulates, and an internal release agent. The composition is substantially free of polymeric binder and can improve the glossiness of a porous particulate-coated ink-receiving media by at least 2 gloss units at 20 degrees. The silica particulates can be suspended in the liquid vehicle at about 1-35 wt %, and can have a particle size of less than about 150 nm. The internal release agent can be present at about 0.5-10 wt %.

Abstract: Disclosed is a coated print media having a coating layer formed on at least one surface of a media substrate. The coating layer includes a binder and co-milled particles of precipitated calcium carbonate and zeolite. The specific zeolite used is either Zeolite A or Zeolite X, or combination of both. The co-milled particles are produced by milling precipitated calcium carbonate in the presence of zeolite, whereby the co-milled particles take on the form of aggregates.

Abstract: The present invention is drawn to a composition for cast-coating on ink-jet media. The composition includes a liquid vehicle, silica particulates, and an internal release agent. The composition is substantially free of polymeric binder and can improve the glossiness of a porous particulate-coated ink-receiving media by at least 2 gloss units at 20 degrees. The silica particulates can be suspended in the liquid vehicle at about 1-35 wt %, and can have a particle size of less than about 150 nm. The internal release agent can be present at about 0.5-10 wt %.

Abstract: A coated medium for inkjet printing, which includes a supporting substrate and a coating layer formed on at least one side thereof. The coating layer includes at least one binder and at least two different inorganic pigments: modified calcium carbonate (MCC) and either precipitated calcium carbonate (PCC) or clay.

Abstract: The present invention is drawn to a composition for cast-coating on ink-jet media. The composition includes a liquid vehicle, silica particulates, and an internal release agent. The composition is substantially free of polymeric binder and can improve the glossiness of a porous particulate-coated ink-receiving media by at least 2 gloss units at 20 degrees. The silica particulates can be suspended in the liquid vehicle at about 1-35 wt %, and can have a particle size of less than about 150 nm. The internal release agent can be present at about 0.5-10 wt %.

Abstract: The invention provides an aqueous dispersion comprising fumed alumina particles, at least one zirconium compound, and water. The invention further provides a coating composition and a recording medium incorporating the inventive dispersion, as well as a method of preparing the recording medium.

Abstract: Activated carbons derived from low-density lignocellulosic agricultural waste, and for use in absorption of metals, are prepared utilizing carbon dioxide or steam activation at 800° C. to 950° C. for 3 to 12 hours and subsequent oxidation with air at 260° C. to 400° C. for 3 to 6 hours. Granular carbons are formed by the inclusion of a preliminary two-step process involving the admixture of a binder selected from molasses, coal tar or wood tar to form pellets, briquettes or extrudates and converting them into a char under an inert atmosphere at 700° C. to 750° C. for 1 to 2 hours.

Abstract: Activated carbons derived from nutshells, and for use in adsorption of metallic cations, are prepared utilizing phosphoric acid activation with concurrent oxidation under air. The acid activation is carried out utilizing a one or two-step heating regime subsequent to the infusion of the phosphoric acid into the nutshell material during which concurrent oxidation is achieved by exposure to atmospheric oxygen. Further oxidation is optionally achieved by equilibration of the nutshell carbons to room temperature under air. Prior to utilization, a washing step is employed to remove unwanted acid from the carbon product.