Abstract: A mobile vertical blind cleaning machine for cleaning both surfaces of individual blind panels of all types including plastic blinds, fabric covered blinds and fabric blinds. An elongated tank is divided into separate liquid tight solution cleaning, rinse and drying chambers with a pair of feed rolls located at the entrance end of each of the chambers and the exit end of the drying chamber. The single tank has an overall length and weight to be moved by a single person for on site cleaning. A rinse water hose connection, shop vacuum suction/air connection and a 115 VAC electrical connection are the only external requirements for operation.

Abstract: A multilayer coextruded slat having upper and lower surfaces has an opaque base layer containing a first thermoplastic polymer, and a thin transparent pearlescent layer containing a a second thermoplastic polymer upon at least one surface of the opaque base layer. In an alternate embodiment a center layer is confined between the opaque base layer and the clear transparent pearlescent surface layer to provide a pearlescent color effect. Such multilayer coextruded slats may be utilized as the louvers for a vertical blind. In an alternate utility the coextruded multilayer slat may be utilized as the color insert for a vertical blind louver which has longitudinally grooved transparent side edges which are adapted to hold a color insert.