A method for preparing a printable substrate having a showthrough value of about 0.14 or less, and an opacity value of at least about 88% which includes a paper substrate with a first and second surfaces formed of paper fibers having a basis weight of from about 12 to about 32 lbs/1300 ft.sup.2, and a substrate filler in an amount in the range of from 0 to about 30% by weight of the paper substrate; and a surface size layer on at least one of the first and second surfaces, the surface size layer having about 50 lbs or less per ton of the paper substrate of a starch surface sizing agent and a multivalent metal salt drying agent in an amount sufficient to impart to the at least one of the first and second surfaces a black print density value of at least about 0.8 when inkjet printed with pigmented inks and a waterfastness value of at least about 85% when inkjet printed with dye-based inks, the printable substrate having a MD tensile strength of at least about 12 lbs/in. and a CD tensile strength of at least about 6 lbs/in.

An inkjet recording medium having an ink receiving layer containing an inorganic pigment, starch, and copolymer latex on at least one surface of a base, characterized in that the inorganic pigment contains engineered calcium carbonate and kaolin, an amount of the engineered calcium carbonate is from 50% by weight or more to less than 80% by weight and an amount of the kaolin is from 10% by weight or more to less than 50% by weight with respect to a total amount of the inorganic pigment, and from 1 parts by weight or more to 10 parts by weight or less of an organic pigment having a glass transition temperature (Tg) of 20 C. or more is contained in the ink receiving layer with respect to 100 parts by weight of the inorganic pigment.

A recording method is provided that includes a step of making a record on a recording medium using an ink composition containing a colorant, an organic compound, and water to obtain a recording article. The amount (W1) of moisture in the recording article after one second from recording and the amount (W5) of moisture in the recording article after five seconds from recording satisfy the following relational formulas:

W12.0 [mg/inch.sup.2](1)

5.0[%](W1W5)100/W130[%](2).

A metamerism-resistant printable plastic sheet, especially white sheet, in which the desired shade of white can be easily specified or adjusted. This is achieved by separately controlling the opacity and the brightness. The opacity is controlled by the concentration of white pigment in a plastic base layer and the brightness is controlled by the concentration of an optical brightener in a plastic print layer bonded to, and preferably coextruded with, the base layer. Such a sheet can be bonded to one or both sides of a rigid core to create a graphics board, or used as a stand-alone flexible print sheet. Preferably, the plastic print layer comprises a polymer resin that is inherently resistant to a yellowing reaction from exposure to UV light.

The present invention provides a method for manufacturing a decorative construction plate, the method including subjecting a metal siding material including: a metallic substrate on which a recess-projection pattern having a height difference of 0.5 mm or more is formed and on which an ink receiving layer formed from a resin composition is provided; a core material; and a back-side material, to flame treatment by exposing the metal siding material to flame with an output of 250 kJ/h to 12000 kJ/h per 10-mm width of a flame port of a burner so that the surface temperature of the substrate does not exceed 300 C., followed by performing inkjet printing using an active ray curable ink.

The instant invention relates to liquid compositions comprising derivatives of diaminostilbene, binders and ink fixing agents such as divalent metal salts for the optical brightening of substrates suitable for high quality ink jet printing.

An ink application method is provided. In the method, an ink is discharged to an object by an inkjet method, to apply the ink to the object. The object includes a base material and a gel layer overlying the base material, and the gel layer includes a vinyl chloride resin and a plasticizer. The ink is an oil-based ink. When a free induction decay curve of the object obtained by a pulse NMR method is separated into two curves respectively derived from a hard component and a soft component, the curve derived from the hard component accounts for 35% to 40% of the free induction decay curve, and the curve derived from the soft component has a spin-spin relaxation time of from 30.0 to 45.0 ms when obtained by a Hahn echo method.

A printable media comprising a composite supporting substrate, having an image side and a non-image side, that contains a first and a second constituent material layers wherein, at least, one of the constituent material layer is a fiber layer and wherein the first and the second materials layers are laminated together with a flame resistant adhesion layer. The printable media further comprises an image receiving layer that is coated on the second layer on the image side of the composite supporting substrate. In the printable media described herein, at least, the image side of the composite supporting substrate and the image receiving layer are textured surfaces. Also disclosed is a method for producing the textured media.

An example of a printable recording medium includes a base substrate and an ink-receiving layer. The ink-receiving layer includes an inorganic pigment in an amount equal to or greater than 70 wt % and an ink-fixing agent in an amount ranging from about 3 wt % to about 10 wt % based on the total wt % of the ink-receiving layer. The inorganic pigment has a median particle size ranging from about 0.5 m to about 5 m. The ink-receiving layer excludes precipitated calcium carbonate.

The present disclosure is drawn to a coated print medium, a method of preparing a print medium, and a printing system. The coated print medium can comprise a substrate and a coating applied to the substrate. The coating can comprise, by dry weight percent, 5 wt % to 30 wt % of a polymeric binder, 20 wt % to 50 wt % of a cationic latex, 5 wt % to 15 wt % of a multivalent cationic salt, and 1 wt % to 20 wt % of an optical brightener; and 5 wt % to 20 wt % of a cationic polyamine.