Methods for manufacturing glow in-the-dark targets
First Claim
1. A method for manufacturing glow in-the-dark targets comprising:
- blending water and a solvent resin binder with an uncoated phosphorescent pigment in a single mix process;
said uncoated phosphorescent pigment being a material selected from a group consisting of alkaline earth aluminates and alkaline earth metal aluminate oxides;
micronizing said single mix process to obtain an average particle size in a range of between 600 mesh and 1500 mesh;
adding additional solvent binder;
adding a charge-controlling agent;
adding a releasing agent to create a phosphorescent ink, andprinting said phosphorescent ink on a paper or metal substrate.
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Abstract
Improvements in methods for manufacturing glow in-the-dark targets are disclosed. This provides an ink that produces images that will glow in the dark for an extended period of time after the ink has been exposed to natural or artificial light. This can be used for flexographic printing, offset printing, gravure printing, and screen printing applications. The ink includes a phosphorescent pigment and optionally includes a colorant on a substrate of paper, plastic or metal. The phosphorescent pigment material is not coated prior to mixing with other ink components. The pigment material has a particle diameter size of about 600 mesh to about 1500 mesh. The ink includes a colorant (optional), a thermoplastic resin binder, a charge-controlling agent, a release agent, as well as the phosphorescent pigment.
37 Citations
12 Claims
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1. A method for manufacturing glow in-the-dark targets comprising:
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blending water and a solvent resin binder with an uncoated phosphorescent pigment in a single mix process; said uncoated phosphorescent pigment being a material selected from a group consisting of alkaline earth aluminates and alkaline earth metal aluminate oxides; micronizing said single mix process to obtain an average particle size in a range of between 600 mesh and 1500 mesh; adding additional solvent binder; adding a charge-controlling agent; adding a releasing agent to create a phosphorescent ink, and printing said phosphorescent ink on a paper or metal substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification