Hollow, rigid vanes for door and window coverings

摘要

A rigid hollow vane for door or window coverings includes a vane shell and an optional fabric covering. The shell is thermally formed and results in a polymer matrix at least partially enveloping fibers. In its most preferred form, the polymer matrix results from heating a batt of two types of fibers, the one type having a lower melting point than the remaining fibers, so that a rigid polymer matrix can be formed about other fibers in the batt.