The present invention provides an inkjet ink and a hiding layer coating agent that contain radical polymerizable components including a polyfunctional monomer that includes a high Tg polyfunctional monomer with a glass transition temperature Tg of not less than 40° C. at a ratio of not less than 30 mass % and a monofunctional monomer, a volatile solvent, and a photo-radical polymerization initiator, with a ratio of the monofunctional monomer being 5 to 70 mass % in the radical polymerizable components and a ratio of the volatile solvent being 50 to 400 mass % with respect to the radical polymerizable components and are excellent in dispersion stability due to not containing (excluding) a white pigment such as titanium oxide, etc., and enable printing of a white or colored character having a high hiding property equivalent to that in a case where the white pigment is contained.

There is provided a laminate having excellent resistance to print removal and excellent abrasion resistance required in BS5609:1986 and also providing the excellent ink dryness. The laminate includes a substrate layer (A) and a formed resin layer (B) including a first porous sub-layer (B1) and a second porous sub-layer (B2). The substrate layer (A), the second porous sub-layer (B2), and the first porous sub-layer (B1) are laminated in this order. The first porous sub-layer (B1) contains a propylene-based polymer (d1), an ethylene-based polymer (PE resin) or acrylonitrile-butadiene-styrene copolymer (ABS resin), and a filler (e1). The second porous sub-layer (B2) contains a propylene-based polymer (d2) and a filler (e2), and is free of a PE resin and an ABS resin. The content of the filler (e1) or (e2) in each porous sub-layer is 50 to 75 mass%.

An aqueous composition can be used for pre-treating a substrate prior to inkjet printing to provide a white opaque background for inkjet-printed images. This aqueous composition includes: (a) one or more water-soluble salts of a multivalent metal cation at 5-30 weight %; (b) a nonionic or cationic water-soluble or water-dispersible polymeric binder material at 5-30 weight %; and (c) surface-treated visible light-scattering particles having a D.sub.50 (median) particle size of at least 0.04 μm and up to and including 2 μm in an amount of 5-60 weight % based on the total aqueous composition weight. The pre-treated substrate is useful as an inkjet receiving medium that can be readily inkjet-printed particularly with anionically-stabilized aqueous pigment-based inks.

A thermally expandable sheet includes: a first thermally expansive layer that is formed on one side of a base and contains a first thermally expandable material and a first binder, the first thermally expansive layer having a first ratio of the first thermally expandable material with respect to the first binder; and a second thermally expansive layer that is formed on the first thermally expansive layer and contains a second thermally expandable material and a second binder, the second thermally expansive layer having a second ratio of the second thermally expandable material with respect to the second binder, wherein the second ratio is lower than the first ratio.

A medium is configured to be mounted in and printed with a printer. The medium includes: a release material; and a printing label. The release material is provided with a cut-out area. The cut-out area is surrounded by a hole or a cut or a series of holes or a series of cuts and has at least a first side and a second side. The first side and the second side oppose each other. The printing label is affixed to the release material so as to extend across the first side and the second side of the cut-out area. The first side and the second side are configured to include different types of the holes or the cuts or the series of holes or the series of cuts from each other.

There is provided a resin-impregnated decorative paper (2) formed by impregnating a decorative paper (4) with an impregnating resin (5). The decorative paper (4) includes: a base paper (6); a picture pattern layer (7) provided on a surface (6a) side of the base paper (6); a filling layer (8) provided on a surface (7a) of the picture pattern layer (7); and a foamed resin layer (9) provided on a surface (8a) of the filling layer (8). The filling layer (8) contains at least one of an epoxy-based resin, an acrylic-based resin, a urethane-based resin, and a casein-based resin.

There is provided a resin-impregnated decorative paper (2) formed by impregnating a decorative paper (4) with an impregnating resin (5). The decorative paper (4) includes: a base paper (6); a picture pattern layer (7) provided on a surface (6a) side of the base paper (6); a filling layer (8) provided on a surface (7a) of the picture pattern layer (7); and a foamed resin layer (9) provided on a surface (8a) of the filling layer (8). The filling layer (8) contains at least one of an epoxy-based resin, an acrylic-based resin, a urethane-based resin, and a casein-based resin.

A method of printing an image using a printing system having first and second printheads supplied with a same ink. The method includes the steps of: allocating first lines of the image to the first printhead; allocating second lines of the image to the second printhead; dithering the first lines of the image using a selected first dither mask; dithering the second lines of the image using a selected second dither mask; printing the dithered first lines of the image using the first printhead; and printing the dithered second lines of the image using the second printhead. The first and second dither masks are selected based on a relative alignment of the first and second printheads.

A method of single-pass printing uses a printing system having first and second aligned printheads supplied with a same ink. The method includes the steps of: receiving first and second halftone images at the first and second printheads, respectively; printing the first halftone image from the first printhead; and printing the second halftone image from the second printhead. The first halftone image is based on a first dither pattern and the second halftone image is based on a second dither pattern, the first dither pattern being different than the second dither pattern.

A decor paper or foil for application to panel shaped substrates may include a base layer, an inkjet receiving surface, and a digitally printed pattern. The digitally printed pattern may be obtained by printing with a single-pass printer. The digitally printed pattern may include a matrix of a plurality of printed ink dots per inch. The matrix, in the width direction of the paper or foil, may be uniformly made up with uniformly sized printed ink dots, with the exception of a minority of an area of the printed pattern, in which the matrix may be modified. The modification may include the presence of one or more printed dots in the matrix which have a smaller or a larger dot size.