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(11) | EP 1 882 425 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Non-burning roller and curl clips |
(57) The disclosure is directed to a hair retaining clip that may include an upper clip
member (12) including an upper arm (18) and a grip portion (20), and a lower clip
member (14) including a lower arm (26) and a grip portion (28). The upper and lower
clip members may be pivotally connected such that the first and second clip members
are rotatable between a normal closed position and an open position, and the upper
and lower clip members may be biased toward the normal closed position. The upper
and low clip members may be fabricated from a material having a thermal conductivity
in the range of 0.20-0.35 W/m K so that the material does not retain excessive heat
and the temperature of the clip does not rise to an uncomfortable level when the clip
is subjected to heat from a hair dryer. The material may also have a static coefficient
of friction between opposing surface of the material in the range of 0.15-0.25, and
a Rockwell R-scale hardness in the range of 76-118.
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