DAMEGE OF HAIR FIBERS AS EVALUATED BY AN ELECTRICAL CAPACITANCE TECHNIQUE

用电容技术对毛发纤维的损伤进行了评价，并与威廉米原理的结果进行了比较。为此，制备了两种类型的毛发纤维样品。在一种类型中，头发纤维被二氯异氰尿酸(DCCA)氧化，而在另一种类型中，纤维被砂纸物理摩擦。用一种使用电容技术的设备来检测沿毛发纤维束的水传输。水分运移速率随受损程度的增加而增加。这些结果与Wilhelmy型毛发纤维在水中的润湿力测量仪的接触角测量结果是一致的。因此，我们发现电容技术作为一种方便的评估毛发纤维损伤的方法是潜在的有用的。

An attempt has been made to evaluate the damage of hair fibers using an electrical capacitance technique, and the results were compared with those obtained by using the Wilhelmy principle. To this end, two types of hair fiber samples were prepared. In one type, hair fibers were oxidized with dichloroisocyanuric acid (DCCA), and in the other, the fibers were physically rubbed with sandpaper. Water transport along the hair fiber bundle was examined with an apparatus using an electrical capacitance technique. The rate of water transport increased with the degree of damage. These results were consistent with the results on the contact angle measurements carried out with a Wilhelmy type apparatus for recording the wetting force of single hair fiber in water. Therefore, we found that an electrical capacitance technique is potentially useful as a convenient evaluation of the damage to hair fibers.