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(11) | EP 0 314 407 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Perming rod |
(57) A perming rod (1) is formed in its outer periphery with axially extending grooves
(5) for discharging excessive perming treatment soluton. Each groove has its edges
cornered sharply and suitably spaced apart from each other so that a bundle of hair
wound around the rod will be brought into engagement with the outer periphery along
the edges of the grooves with a large frictional force. The hair can be permed strongly
so that fold lines will be formed along the edge lines of the grooves by pulling the
hair with a large tensile force. |