Colour afterglowing sign
AssigneeSystemtext AB
InventorMikael Andersson Lonnstrom
Life of this patent
Estimating the term…
Abstract
The present invention describes a colour afterglowing product, said colour afterglowing product being printed with a colour afterglowing layer comprising colour afterglowing pigment(s), wherein the colour afterglowing product comprises symbols and/or text in one first afterglowing colour and a complementing signal field with a colour afterglowing layer in a different second afterglowing colour, where the complementing signal field with a colour afterglowing layer in a second afterglowing colour has a luminance of 4/0.5 mcd/m2 when measured in accordance with ISO 16069:2017 testing parameters and at 10/60 minutes, preferably a minimum luminance of 6/0.75 mcd/m2, most preferably a minimum luminance of 7.5/1.0 mcd/m2, when measured in accordance with ISO 16069:2017 testing parameters and at 10/60 minutes.
Claims21
A colour afterglowing product, said colour afterglowing product being printed with a colour afterglowing layer comprising colour afterglowing pigment(s), wherein the colour afterglowing product comprises symbols and/or text in one first afterglowing colour and a complementing signal field with a colour afterglowing layer in a different second afterglowing colour,
- wherein the complementing signal field with a colour afterglowing layer in a second afterglowing colour has a minimum luminance of 4/0.5 mcd/m2 when measured in accordance with ISO 16069:2017 testing parameters and at 10/60 minutes,
- wherein the symbols and/or text in one first afterglowing colour comprises white/yellowish afterglowing pigments and has a minimum luminance of 140/20 mcd/m2 when measured in accordance with ISO 16069:2017 testing parameters and at 10/60 minutes,
- wherein the amount of phosphorescent pigment(s) in the colour afterglowing layer of the complementing signal field is in the range of 30-80 wt. %, calculated on the total weight of colour in the colour afterglowing layer, and
- wherein the complementing signal field with a colour afterglowing layer in a different second afterglowing colour is complemented with a coloured screen pattern complementing the second afterglowing colour.
Dependencies are inferred from the claim text.