Fluorescent marking composition and fluorescent mark formed by said composition
First Claim
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1. A fluorescent marking composition for ink jet printing, comprising particles of an organic resin having a glass transition temperature of at least 30°
- C. and an average particle size of at least 30 nm, and a fluorescent dye emitting fluorescence in a visible light wavelength range that is present in an amount of 0.001 wt. % to 10 wt. %, based on the weight of the particles of the organic resin; and
wherein the organic resin is selected from the group consisting of polymethacrylate, polyacrylate, polyvinyl chloride, benzoquanamine, alkyd, urea, vinyl chloride, vinyl acetate copolymer and aromatic sulfonamide resins.
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Abstract
A fluorescent marking composition containing particles of an organic material which has a glass transition temperature of at least 30° C. and an average particle size of at least 30 nm, and emitting fluorescence in a visible light range, or absorbing infrared light having a wavelength of at least 700 nm and emitting a light in an infrared wavelength range, which composition is excellent in dispersion stability, light resistance, and heat and light resistance, and provides a mark which does not bleed.
63 Citations
17 Claims
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1. A fluorescent marking composition for ink jet printing, comprising particles of an organic resin having a glass transition temperature of at least 30°
- C. and an average particle size of at least 30 nm, and a fluorescent dye emitting fluorescence in a visible light wavelength range that is present in an amount of 0.001 wt. % to 10 wt. %, based on the weight of the particles of the organic resin; and
wherein the organic resin is selected from the group consisting of polymethacrylate, polyacrylate, polyvinyl chloride, benzoquanamine, alkyd, urea, vinyl chloride, vinyl acetate copolymer and aromatic sulfonamide resins. - View Dependent Claims (2, 3, 4, 5, 6)
- C. and an average particle size of at least 30 nm, and a fluorescent dye emitting fluorescence in a visible light wavelength range that is present in an amount of 0.001 wt. % to 10 wt. %, based on the weight of the particles of the organic resin; and
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7. An infrared fluorescent marking composition for ink jet printing, comprising particles of an organic resin having a glass transition temperature of at least 30°
- C. and an average particle size of at least 30 nm, and an infrared fluorescent dye absorbing infrared light having a wavelength of at least 700 nm and emitting light in an infrared wavelength range that is present in an amount of 0.001 wt. % to 15 wt. %, based on the weight of the particles of the organic resin; and
wherein the organic resin is selected from the group consisting of polymethacrylate, polyacrylate, polyvinyl chloride, benzoquanamine, alkyd, urea, vinyl chloride, vinyl acetate copolymer and aromatic sulfonamide resins. - View Dependent Claims (8, 9, 10, 11, 12)
- C. and an average particle size of at least 30 nm, and an infrared fluorescent dye absorbing infrared light having a wavelength of at least 700 nm and emitting light in an infrared wavelength range that is present in an amount of 0.001 wt. % to 15 wt. %, based on the weight of the particles of the organic resin; and
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13. A fluorescent mark comprising particles of an organic resin having a glass transition temperature of at least 30°
- C. and an average particle size of at least 30 nm, and a fluorescent dye emitting fluorescence in a visible light wavelength range that is present in an amount of 0.001 wt. % to 10 wt. %, based on the weight of the particles of the organic resin;
wherein the organic resin is selected from the group consisting of polymethacrylate, polyacrylate, polyvinyl chloride, benzoquanamine, alkyd, urea, vinyl chloride, vinyl acetate copolymer and aromatic sulfonamide resins. - View Dependent Claims (14)
- C. and an average particle size of at least 30 nm, and a fluorescent dye emitting fluorescence in a visible light wavelength range that is present in an amount of 0.001 wt. % to 10 wt. %, based on the weight of the particles of the organic resin;
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15. An infrared fluorescent mark comprising particles of an organic resin having a glass transition temperature of at least 30°
- C. and an average particle size of at least 30 nm, and an infrared dye absorbing infrared light having a wavelength of at least 700 nm and emitting light in an infrared wavelength range that is present in an amount of 0.001 wt % to 15 wt. %, based on the weight of the particles of the organic resin; and
wherein the organic resin is selected from the group consisting of polymethacrylate, polyacrylate, polyvinyl chloride, benzoquanamine, alkyd, urea, vinyl chloride, vinyl acetate copolymer and aromatic sulfonamide resins. - View Dependent Claims (16, 17)
- C. and an average particle size of at least 30 nm, and an infrared dye absorbing infrared light having a wavelength of at least 700 nm and emitting light in an infrared wavelength range that is present in an amount of 0.001 wt % to 15 wt. %, based on the weight of the particles of the organic resin; and
Specification