MAQUINA EXPENDEDORA DE INFUSIONES DOTADA DE MEDIOS PARA LIMPIAR EL FILTRO DE INFUSION

Un artículo moldeado de resina cristalina que tiene una apariencia no uniforme que comprende una mezcla moldeada de una resina base de resina termoplástica cristalina granular y un concentrado coloreado de resina termoplástica cristalina granular que tiene propiedades de color contrastantes, comprendiendo dicho concentrado de color granular una resina portadora de resina cristalina que tiene una temperatura de fusión que es al menos 15ºC más alta que la resina base para dispersar de modo no uniforme el concentrado de color granular en la resina base durante el moldeo a fin de producir una apariencia no uniforme en dicho artículo moldeado. A vending machine ( 1 ) comprises a brewing unit ( 7 ) provided with a brewing chamber ( 8 ) that is closable at the bottom portion thereof by means of a movable filter ( 9 ) adapted to retain the brewing residues, and further comprises actuator means ( 11 ) adapted to cause said filter ( 9 ) to displace from a first brewing position, in which said filter ( 9 ) is associated to said brewing chamber ( 8 ) in a fluid-tight manner, to a second discharge position, in which said filter ( 9 ) is separated from said brewing chamber ( 8 ), and vice-versa. The vending machine ( 1 ) is characterized in that said actuator means ( 11 ) comprise cleaning means ( 24 ) interacting with said filter ( 9 ) to remove the brewing residues therefrom, said actuator means ( 24 ) actuating said cleaning means ( 24 ) when the filter ( 9 ) is in said second discharge position thereof.