Fluorescent article having multiple layers
First Claim
1. A fluorescent article comprising:
- an underlayer colored fluorescent film that includes a first fluorescent colorant in an underlayer polymer matrix; and
an overlayer colored fluorescent film provided over the underlayer film, the overlayer film including a second fluorescent colorant in an overlayer polymer matrix, the second fluorescent colorant at least partially blocking light in a first wavelength range while allowing transmission of an amount of light in a second wavelength range effective to make the first fluorescent colorant fluoresce.
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Accused Products
Abstract
A fluorescent article includes an underlayer colored fluorescent film and an overlayer colored fluorescent film, which is provided over the underlayer colored fluorescent film. The underlayer colored fluorescent film includes a first fluorescent colorant in an underlayer polymer matrix. The overlayer colored fluorescent film includes a second fluorescent colorant in an overlayer polymer matrix. The second fluorescent colorant in the overlayer film at least partially blocks light in a first wavelength range while allowing transmission of an amount of light in a second wavelength range effective to make the first fluorescent colorant fluoresce.
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Citations
25 Claims
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1. A fluorescent article comprising:
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an underlayer colored fluorescent film that includes a first fluorescent colorant in an underlayer polymer matrix; and an overlayer colored fluorescent film provided over the underlayer film, the overlayer film including a second fluorescent colorant in an overlayer polymer matrix, the second fluorescent colorant at least partially blocking light in a first wavelength range while allowing transmission of an amount of light in a second wavelength range effective to make the first fluorescent colorant fluoresce. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A fluorescent yellow article comprising:
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an underlayer fluorescent yellow-green film that includes at least one fluorescent dye dissolved within an underlayer polymer matrix; an overlayer fluorescent orange film provided over the underlayer film, the overlayer film including at least one fluorescent dye dissolved within an overlayer polymer matrix. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A fluorescent yellow retroreflective article comprising:
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an underlayer fluorescent yellow-green film that includes at least one fluorescent dye dissolved in a underlayer polymer matrix, the underlayer polymer matrix including a polycarbonate; and an overlayer fluorescent orange film provided over the underlayer film, the overlayer film including at least one fluorescent dye dissolved in an overlayer polymer matrix, the overlayer polymer matrix including an acrylic resin. - View Dependent Claims (21, 22, 23, 24, 25)
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Specification