Provided is a multilayer body having good print readability and removability. A multilayer body (1) is for a laser marking label and includes a first layer (10) allowing laser light to pass through, a second layer (20) developing a color by laser light, and a third layer (30) having adhesiveness, which are stacked in this order. The second layer (20) consists of a resin composition containing an acrylic-based copolymer, an isocyanate-based crosslinking agent, a color development pigment, and a white pigment. The isocyanate-based crosslinking agent is selected from (i) an aromatic-aliphatic isocyanate-based crosslinking agent or (ii) a mixture of an aliphatic or alicyclic isocyanate-based crosslinking agent and an aromatic isocyanate-based crosslinking agent. A contained amount of the isocyanate-based crosslinking agent is 5-40 parts by mass with respect to 100 parts by mass of the acrylic-based copolymer. The second layer (20) is in contact with the first laver (10).

A polyolefin-based film comprising at least one layer permitting printing as a result of laser irradiation; wherein not less than 100 ppm but not greater than 3000 ppm of pigment permitting printing as a result of laser irradiation is present in all layers of the film; haze thereof is not less than 1% but not greater than 30%; and unevenness in thickness thereof in either a machine direction or a transverse direction is not less than 0.1% but not greater than 25%. An object is to provide a film capable of being printed in distinct fashion by a laser, that excels with respect to unevenness in thickness, and that is of high transparency, and at the same time provide packaging which employs such film and on which printing has been directly carried out.

A method for providing an image on or in a substrate is provided, and comprises applying to the substrate: (i) ammonium octamolybdate (AOM) in the form of the alpha-isomer, obtainable by thermal decomposition of ammonium molybdate at 215-225° C. for 180 mins, and which has an anhydrous loss on ignition in the range 8.00 to 8.80; or (ii) a composition comprising ammonium octamolybdate as defined in (i), and a binder; followed by irradiation. Also provided are liquid ink compositions comprising AOM as defined above, and a binder.

A method of marking an optical fiber that includes directing a laser beam onto a first colored layer of an optical fiber. The optical fiber includes a core and a cladding surrounding the core, the first colored layer surrounds the cladding, and the laser beam modifies the first colored layer to form one or more laser-modified regions along an outer surface of the first colored layer.

Methods, systems, and apparatus, including medium-encoded computer program products, for a universal laser system including a laser operable to produce an infrared laser beam for a range of wavelengths, an optics assembly operable to focus and direct the laser beam, and electronics communicatively coupled with the laser and the optics assembly, the electronics being configured to control the laser and the optics assembly, where the laser is configured to produce the infrared laser beam at wavelengths in the range of wavelengths that overlap with absorption peaks due to higher-order, non-linear oscillations of molecular bonds of each polymeric material of at least ten different polymeric materials, thereby generating heat from absorption of photon energy from the infrared laser beam.

Printing multi-color images on non-vinyl plastic identification documents in identification document printing systems. A non-linear pixel density adjustment curve is used to adjust the pixel density data of a multi-color image to be printed which adjusts the power applied to the thermal print head. The use of a non-linear pixel density adjustment curve to adjust the pixel density data improves the quality of the resulting multi-color printed image, reduces mass transfer of the dye donor layer, and reduces breaking of the carrier film of the print ribbon.

A pattern forming apparatus for a base material includes a holding unit and a pattern forming unit. The holding unit is configured to hold a base material on which one of a protrusion shape portion and a recess shape portion is formed. The pattern forming unit is configured to form a pattern on the base material. The pattern is formed on at least one of the protrusion shape portion, the recess shape portion, a periphery of the recess shape portion, a periphery of the protrusion shape portion, a portion along the protrusion shape portion, and a portion along the recess shape portion.

An object of the present invention is to provide a print product which has a printed region where printing with ultraviolet laser is applied and which is excellent in viewability, a method for producing a print product by irradiation with ultraviolet laser, and a printing medium for laser printing, for use in the print product and the method for producing a print product. The print product of the present invention has a printed region comprising discolored titanium oxide in at least one portion of a sheet medium selected from the group consisting of paper or a film having a printable region comprising titanium oxide; titanium oxide is filled in the sheet medium; a titanium oxide content in the printable region in the sheet medium is 1.0% by mass or more, pulp constituting the paper has a length-weighted average fiber length and an average fiber width in specified ranges, and the paper has a basis weight of 20 g/m.sup.2 or more, when the sheet medium is the paper; a titanium oxide content in the printable region in the sheet medium is 0.3% by mass or more, the film has a thickness of 15 μm or more, and a resin constituting the film comprises a specified resin, when the sheet medium is the film; and a ratio between a Raman intensity assigned to titanium oxide in the printed region and a Raman intensity assigned to titanium oxide in a non-printed region is 0.70 or less.

The present disclosure relates generally to signal encoding for flexographic printing plates. One aspect is a flexographic, photopolymer printing plate having transparent layers to allow encoded signal printed or laser ablated thereon to be detectable from both sides of the printing plate. Another aspect is a flexographic, photopolymer printing plate having an encoded signal formed in a photocured layer. Still another aspect is a system for tracking such printing plates, including managing location, print impression count, location tracking, etc. Other aspects are described as well.

A substrate having a first pattern formed on a surface or in an inside of the substrate, or on the surface and in the inside of the substrate, wherein the first pattern is constituted by an aggregate of second patterns.