Ink ribbon
First Claim
Patent Images
1. A ribbon comprising a base film and an infrared ray emitting layer having a thickness of from 1 to 10 μ
- m, said infrared ray emitting layer containing infrared ray-emitting fluorescent particles having a size of at least 0.1 μ
m to less than 1 μ
m.
1 Assignment
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Accused Products
Abstract
An ink ribbon comprising a base film and an ink layer having a thickness of from 1 to 10 μm and containing a particle form infrared ray-emitting fluorescent substance having excellent light emitting characteristics.
6 Citations
7 Claims
-
1. A ribbon comprising a base film and an infrared ray emitting layer having a thickness of from 1 to 10 μ
- m, said infrared ray emitting layer containing infrared ray-emitting fluorescent particles having a size of at least 0.1 μ
m to less than 1 μ
m. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- m, said infrared ray emitting layer containing infrared ray-emitting fluorescent particles having a size of at least 0.1 μ
Specification