A water-based ink for inkjet recording, includes: a pigment; water; and an acidic preservative. The pigment is preferably a self-dispersing pigment. The acidic preservative preferably includes at least one selected from the group consisting of a polyvalent unsaturated fatty acid, a polyvalent unsaturated fatty acid salt, dehydroacetic acid, and a dehydroacetate. A content of the acidic preservative in the water-based ink is preferably 0.5% by mass to 5.0% by mass relative to a total mass of the water-based ink. The water-based ink preferably further includes a surfactant. The water-based ink preferably further includes a penetrant which includes at least one selected from the group consisting of 1,2-hexanediol, 3-methyl-1,5-pentanediol, and triethylene glycol-n-butyl ether (BTG).

A water-based ink for inkjet recording, includes: a pigment; water; and an acidic preservative. The pigment is preferably a self-dispersing pigment. The acidic preservative preferably includes at least one selected from the group consisting of a polyvalent unsaturated fatty acid, a polyvalent unsaturated fatty acid salt, dehydroacetic acid, and a dehydroacetate. A content of the acidic preservative in the water-based ink is preferably 0.5% by mass to 5.0% by mass relative to a total mass of the water-based ink. The water-based ink preferably further includes a surfactant. The water-based ink preferably further includes a penetrant which includes at least one selected from the group consisting of 1,2-hexanediol, 3-methyl-1,5-pentanediol, and triethylene glycol-n-butyl ether (BTG).

A chip-embedded printed circuit board includes a cavity in a printed circuit board, a chip in the cavity of the printed circuit board, and a thixotropic dielectric filler in a gap in the cavity to seal the chip in the printed circuit board.

A chip-embedded printed circuit board includes a cavity in a printed circuit board, a chip in the cavity of the printed circuit board, and a thixotropic dielectric filler in a gap in the cavity to seal the chip in the printed circuit board.

The silicone-based ink for additive manufacturing includes a siloxane macromer, and a porogen mixture comprising a water-soluble porogen and a surfactant. The product of additive manufacturing with a silicone-based ink includes a three-dimensional printed structure including a plurality of continuous filaments arranged in a predefined pattern and a plurality of inter-filament pores defined by the predefined pattern of the continuous filaments. In addition, each continuous filament of the three-dimensional printed structure includes a silicone matrix having an open cell structure with a plurality of intra-filament pores, and the intra-filament pores form continuous channels through the silicone matrix.

The silicone-based ink for additive manufacturing includes a siloxane macromer, and a porogen mixture comprising a water-soluble porogen and a surfactant. The product of additive manufacturing with a silicone-based ink includes a three-dimensional printed structure including a plurality of continuous filaments arranged in a predefined pattern and a plurality of inter-filament pores defined by the predefined pattern of the continuous filaments. In addition, each continuous filament of the three-dimensional printed structure includes a silicone matrix having an open cell structure with a plurality of intra-filament pores, and the intra-filament pores form continuous channels through the silicone matrix.

The present disclosure teaches an article of manufacture using an industrial (or commercial) manufacturing process. The article of manufacture comprises an infrared (IR) luminescent material that emits in the IR wavelength range (e.g., from approximately seven-hundred nanometers (˜700 nm) to approximately one millimeter (˜1 mm)) after being excited by incident wavelengths of between ˜100 nm and ˜750 nm (or visible light). In other words, once the material has been exposed to visible light, the material will continue to emit in the IR wavelength range for a period of time, even when the material is no longer exposed to the visible light.

The present disclosure teaches an article of manufacture using an industrial (or commercial) manufacturing process. The article of manufacture comprises an infrared (IR) luminescent material that emits in the IR wavelength range (e.g., from approximately seven-hundred nanometers (˜700 nm) to approximately one millimeter (˜1 mm)) after being excited by incident wavelengths of between ˜100 nm and ˜750 nm (or visible light). In other words, once the material has been exposed to visible light, the material will continue to emit in the IR wavelength range for a period of time, even when the material is no longer exposed to the visible light.

Disclosed are embodiments of 3D printing compositions that incorporate light scattering and wavelength-shifting metal nanoparticles, and systems and methods of using the 3D printing compositions. In some embodiments, the 3D printing compositions containing metal nanoparticles cure faster upon exposure to UV radiation. In some embodiments, the 3D printing compositions containing metal nanoparticles scatter incoming UV light throughout printed layers of the 3D printing compositions. It is proposed that metal nanoparticles produced by high energy methods possessing smooth spherical morphology and narrow size distributions can be integrated into 3D printing compositions to mitigate the risk of over-curing due to the light-scattering and/or down-shifting effect of the nanoparticles. A method for adding the nanomaterials to the 3D printing compositions in a non-interruptive process is also disclosed.

Disclosed are embodiments of 3D printing compositions that incorporate light scattering and wavelength-shifting metal nanoparticles, and systems and methods of using the 3D printing compositions. In some embodiments, the 3D printing compositions containing metal nanoparticles cure faster upon exposure to UV radiation. In some embodiments, the 3D printing compositions containing metal nanoparticles scatter incoming UV light throughout printed layers of the 3D printing compositions. It is proposed that metal nanoparticles produced by high energy methods possessing smooth spherical morphology and narrow size distributions can be integrated into 3D printing compositions to mitigate the risk of over-curing due to the light-scattering and/or down-shifting effect of the nanoparticles. A method for adding the nanomaterials to the 3D printing compositions in a non-interruptive process is also disclosed.