Patent ID: 9011716
Filing Date: 2015-04-21
Classification: C09B,C09K,Y10S

Abstract:
1. A white-fluorescing dye blend for inclusion in a working fluid for detecting sites of fluid leakage, the dye blend adapted to produce a substantially white fluorescence when excited with ultraviolet or blue light, the white-fluorescing dye blend comprising a mixture of a yellow fluorescing dye solution which fluoresces yellow when exposed to the ultraviolet or blue light, a blue fluorescing dye solution which fluoresces blue when exposed to the ultraviolet or blue light, and a green fluorescing dye solution which fluoresces green when exposed to the ultraviolet or blue light, wherein the yellow fluorescing dye solution comprises between about 24 to about 45 weight % of the white-fluorescing dye blend, the blue fluorescing dye solution comprises between about 12 to about 40 weight % of the white-fluorescing dye blend, and the green fluorescing dye solution comprises from about 1% to about 28 weight % of the white-fluorescing dye blend.