Flexible electroluminescent fiber for embroidery

A flexible electroluminescent yarn for embroidery, sequentially consisting of:

• metal core wires, a light-emitting layer, a transparent conductive layer, a filament, and a coating layer, wherein a quantity of the metal core wires is an even number, and the metal core wires are wrapped by the light-emitting layer;
• the light-emitting layer is coated with the transparent conductive layer;
• the coating layer and the filament are exterior to the transparent conductive layer;
• wherein the metal core wires are enameled copper wires with a diameter of 0.01-0.05 mm;
• a quantity of the enameled copper wires is an even number, and capacitances of the enameled copper wires are identical;
• wherein the transparent conductive layer is wrapped with the filament, and the filament is transparent or translucent;
• the filament is organic filament with a diameter of 0.005-0.01 mm, the filament is a polypropylene fiber or a polyurethane fiber;
• wherein the filament is segmentally coated with the coating layer which is colorless, transparent and insulating;
• the coating layer bonds the filament to surfaces of the light-emitting layer and the transparent conductive layer, while the filament provides support for the coating layer;
• the coating layer completely wraps the transparent conductive layer;
• a thickness of the coating layer equals to a diameter of the filament;
• the metal core wires emit light through energizing without using an external electrode;
• a diameter of the electroluminescent yarn is 0.1-0.3 mm, and the electroluminescent yarn adopts a 20-36V safe voltage for emitting light.