Hair iron for hair straightening

Claim 1

A hair iron for straightening hair of a type having a grip part (4) and pressing members (2, 3), said pressing members comprising uneven opposing faces (2a, 3a) matching each other provided on relative opposing faces of the pressing members, the uneven faces (2a, 3a) covering only parts of the opposing faces of the pressing members (2, 3), each one of said parts extending from one end of each one of said pressing members a specific length in a width wise direction to form a gap between other parts of the opposing faces so that the hair iron is used in such a manner that the uneven opposing faces (2a, 3a) are located at the root side of the hair and the gap is located at the tip side of the hair so as to warm the hair in the gap and let it swell and then pressing and deforming the hair by the uneven faces (2a, 3a), wherein hair is straightened by heating said iron, clasping and pressing hair between the pressing members, shifting the pressing members on the hair little by little from the root to the tip while repeatedly pressing and releasing the hair to deform the hair into a fine wave form by bending it in multiple directions, sliding the pressing members on the hair frictionally from the root to the tip to stretch the hair and finally treating the hair with a perming solution.