To bring a curtain into close contact with a curved window so as to prevent a clearance from being formed between the curtain and the window, by forming pleats by heat molding in a fabric containing a low melting point component, also forming a curved surface along a window curved surface.

In a low melting point component of fabric of a curtain 3, for instance, 200°C or less melting point desirably 110°C or more melting point such as polyester, polyamide, polypropylene, polyethylene are provided, the fabric is made by mix spinning fibers 200°C or more melting point such as polyester, polyamide, acryl, acetate fiber in fiber. The fabric thus formed has heat molding property, heating to a temperature of softening point or more of a low melting point component contained preveious in the fabric, by cold pressing by a mold form, or without preheating the fabric, by hot press molding at a temperature of softening point or more of a low melting point component contained in the fabric, a pleat 3A is formed. The curtain 3 is placed in a condition along a curved surface of a window 2, accordingly, the curtain 3 is brought into close contact with the window, in-car space is prevented from being narrowed.