a fabric light control window covering in which fabric vanes are adhesively bonded between two sheer fabric sheets such that relative movement between the sheer fabric sheets in a direction perpendicular to the longitudinal direction of the fabric vanes changes the angle of the fabric vanes and , thus , controls the amount of light admitted through the shade . the vanes are bonded to the sheer fabric sheets in a manner which tends to bias the sheer fabric sheets together to the nonlight admitting position . also , disclosed are methods and apparatus for manufacturing the above window covering . the method features linear application of adhesive to the vane material which provides for a uniform appearance in the finished product . a heat setting process and apparatus is disclosed in which the bonded layers of sheer fabrics and vanes are fed between belts over hot and cool surfaces , under uniform tension and pressure . this provides for heat setting of the layers of the window covering to a uniform temperature - size relationship without inducing wrinkles or distortion into the fabric during heat setting .