Patent ID: 6439269
Filing Date: 2002-08-27
Classification: D03D

Abstract:
A room darkener fabric comprising:a woven fabric having three layers of yarns with each layer interlaced between warp and filling yarns; said warp yarns being white and flame resistant and having about 40-60% of said warp yarns on a face of the fabric and about 60-40% warp yarns on a back of the fabric; said filling yarns being non-flame resistant black yarns; about 70-90% of said black filling yarns binding with the warp yarns and forming a middle layer such that the face and back include about 85-95% white warp yarns and about 5-15% black filling yarn with the balance of the black filling yarns forming a middle layer whereby substantially less than 2% of visible light is transmitted through the fabric.