topknot, chignon, male hairstyle of looped ponytails
鬟 centers on a specific traditional hairstyle where hair is gathered into a topknot or looped ponytails, often associated with men's historical styles.
鬟 combines 髟 (hair) with 睘, which likely contributes the sound and relates to encircling or looping, reflecting the looped hairstyle.
The top 髟 shows long hair, and the bottom 睘 looks like a loop or ring. Picture hair being twisted and looped into a topknot or chignon.
For カン, imagine a can of hair wax used to style the looped topknot: can -> カン, and the wax holds the hairstyle in place.