SURFACE TOPOGRAPHY OF HAIR 177 a :3548 8KU 10Pm WD14 3543 8KU 10Nm WO15 :3542 8K 10Pm WD 14 Figure 3. Examples of new hair (a), hair treated by a bleaching agent (b) and treated with a composition causing raising of the cuticles (c). (SEM photographs)
178 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS 0 0.4, O.•l 1.• 1.6 • 2.4- •.•l Length [mrn] 1 0.• 0.6 0.4* O.a 0 --O.a --0.4* --0.6 --O.B --1 --1.a --1.4. - I t i [ I i I i i I [ I I [ 0 0.04, 0 . Length [mini Figure 4. An example of a hair profile, measured at three different scales. Note the general similarity of the traces between 30 mm (a) and 0.3 mm (c) in length, corresponding to 100x magnification. (b) Represents a trace 3.0 mm in length.
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