Provided are: an infrared ray-absorbing ultraviolet-ray curable ink which has infrared ray-absorbing ability and from which it is possible to provide printed matter having excellent resistance to bases, particularly resistance to washing; and an infrared ray-absorbing printed matter. According to the present invention, an ink composition is obtained by using an ultraviolet-ray curable urethane acrylate resin together with a tungsten-based infrared ray-absorbing pigment. More specifically, this infrared ray-absorbing ultraviolet-ray curable ink contains a tungsten-based infrared ray-absorbing pigment, an ultraviolet-ray curable urethane acrylate resin, and an ultraviolet-ray curable acrylic resin not including a urethane bond.

Provided is an ink set containing an insulating ink that contains at least one polymerization initiator selected from the group consisting of an oxime compound, an alkylphenone compound, and a titanocene compound and a polymerizable monomer, and a conductive ink that contains at least one of a metal complex or a metal salt. Also provided are applications of the ink set.

A scenario-adaptable color-changing ink and a corresponding solar glass product are provided. The ink includes 7-30 parts by weight of photopolymer, 8-20 parts by weight of photoactive monomer, 1-5 parts by weight of photosensitizer, 30-55 parts by weight of weather-resistant resin, 1-10 parts by weight of curing agent, and 1-15 parts by weight of pearlescent pigment. The pearlescent pigment is at least one interference pearlescent pigments with weather-resistance, which has no color. Each sheet of the pearlescent pigment can be considered as a miniature prism which can break the white composite light into colorful monochromatic light, thus allow the coating of the printing ink to present a beautiful pearl luster and metallic luster. The pattern color which is visible by human is a result of overlaps and interferes of lights that the incident light is multiply reflected and refracted by the sheets of transparent pearlescent pigment.

Additive manufacturing processes, such as powder bed fusion of thermoplastic particulates, may be employed to form printed objects in a range of shapes. Formation of printed objects having various colors may sometimes be desirable. Thermoplastic particulates incorporating a color-changing material capable of forming different colors under specified activation conditions may impart different colors to a printed object. Such particulate compositions may comprise a plurality of thermoplastic particulates comprising a thermoplastic polymer and a color-changing material associated with the thermoplastic particulates, wherein the color-changing material is photochromic and thermochromic. Conjugated diynes, such as 10,12-pentacosadiynoic acid or a derivative thereof, may be particularly suitable color-changing materials having photochromic and thermochromic properties for forming a range of colors upon a printed object. Nanoparticles, particularly silica nanoparticles, associated with an outer surface of the thermoplastic particulates may enhance the brightness of the color obtained under various activation conditions and afford coloration permanence.

Additive manufacturing processes, such as powder bed fusion of thermoplastic particulates, may be employed to form printed objects in a range of shapes. Formation of printed objects having various colors may sometimes be desirable. Thermoplastic particulates incorporating a color-changing material capable of forming different colors under specified activation conditions may impart different colors to a printed object. Such particulate compositions may comprise a plurality of thermoplastic particulates comprising a thermoplastic polymer and a color-changing material associated with the thermoplastic particulates, wherein the color-changing material is photochromic and thermochromic. Conjugated diynes, such as 10,12-pentacosadiynoic acid or a derivative thereof, may be particularly suitable color-changing materials having photochromic and thermochromic properties for forming a range of colors upon a printed object. Nanoparticles, particularly silica nanoparticles, associated with an outer surface of the thermoplastic particulates may enhance the brightness of the color obtained under various activation conditions and afford coloration permanence.

Illustrative examples of forming material suitable for use in additive manufacturing processes includes operations of: exposing a first polymer powder to a first plasma, such that an amine-functionalized powder is formed; exposing a second polymer powder to a second plasma, such that an epoxide-functionalized powder is formed; and combining the amine-functionalized powder and the epoxide-functionalized powder to form a precursor material. The precursor material is subsequently heated in an additive manufacturing process to form a structure, where heating of the precursor material causes covalent chemical bonds to form between the first polymer powder and the second polymer powder.

Illustrative examples of forming material suitable for use in additive manufacturing processes includes operations of: exposing a first polymer powder to a first plasma, such that an amine-functionalized powder is formed; exposing a second polymer powder to a second plasma, such that an epoxide-functionalized powder is formed; and combining the amine-functionalized powder and the epoxide-functionalized powder to form a precursor material. The precursor material is subsequently heated in an additive manufacturing process to form a structure, where heating of the precursor material causes covalent chemical bonds to form between the first polymer powder and the second polymer powder.

Polymerizable liquids are described herein which, in some embodiments, can produce 3D printed articles of high resolution and desirable mechanical properties. In one aspect, a polymerizable liquid comprises an acrylate component, a polymeric additive, and a monomeric curing agent, wherein the acrylate component and monomeric curing agent are copolymerizable upon exposure to light. In being copolymerizable, the acrylate component and monomeric curing agent can form a copolymer. As described father herein, the monomeric curing agent can enable further reaction of the copolymer with one or more crosslinking species to link the copolymer with one more polymeric networks.

Polymerizable liquids are described herein which, in some embodiments, can produce 3D printed articles of high resolution and desirable mechanical properties. In one aspect, a polymerizable liquid comprises an acrylate component, a polymeric additive, and a monomeric curing agent, wherein the acrylate component and monomeric curing agent are copolymerizable upon exposure to light. In being copolymerizable, the acrylate component and monomeric curing agent can form a copolymer. As described father herein, the monomeric curing agent can enable further reaction of the copolymer with one or more crosslinking species to link the copolymer with one more polymeric networks.

A method of forming an image on a substrate that involves applying a radiation curable white inkjet ink composition comprising a radiation curable anti-wrinkle agent onto a surface of the substrate, exposing the radiation curable white inkjet ink composition to UV light having a wavelength of less than 200 nm to pin the radiation curable white inkjet ink composition and form a coated substrate having an arithmetical mean surface roughness value R.sub.a of less than or equal to 2.0 micrometers and an arithmetical mean surface roughness depth R.sub.z of less than or equal to 10.0 micrometers, applying a radiation curable CMYK inkjet ink composition onto the coated substrate, and curing with electron beam radiation.