Patent ID: 7754037

Claim:
A manufacturing method for a seamless hat comprising steps of: a. selecting cloth material having a chemical fiber component, and cutting out cut-out pieces with specific pattern outlines; b. superimposing join edges of each of the cut-out pieces, and carrying out preliminary joining of the edges; c. using supersonic or high frequency processing art to administer heat processing on the edges of the superimposed cut-out pieces, thereby fusing the chemical fiber component and joining the edges; d. cutting away surplus cloth material from the cut-out pieces along joined gathered edges; e. everting the joined gathered edges to provide an everted side which serves as an outer layer of a hat body; f. implementing heating art to cover the joined gathered edges with hold-down strips containing thermosol or thermal polyurethane (TPU) membrane, thereby fabricating the hat body; and g. heat fusing a bottom edge of the hat body to a hat brim.