Abstract: A method and apparatus for continuously and efficiently producing bouffant caps, the arrangement comprising a section for supporting and supplying a thin band-like material wound in roll form, a laying section for laying stretchable linear elements in stretched condition on opposite sides of the band-like material being continuously payed out from the supply section, a welding section for integrally attaching the laid stretchable linear elements to the band-like material, a zigzag folding section for widthwise zigzag folding the band-like material having said stretchable linear elements welded thereto, a fixed length seal section for welding at regular intervals the stretchable linear elements laid on the opposite sides of the zigzag folded material, and a cutter section for cutting the material at the middle of each weld region.