noun
uneven fading; patchy disappearance; remaining in spots
Describes a state where something (color, pattern, etc.) fades or disappears unevenly, leaving spots or patches. Often used for fabric, prints, or coatings.
このシャツは洗濯で斑消えしてしまった。
This shirt got patchy fading from washing.
壁紙の色が斑消えしている。
The wallpaper color is fading unevenly.
色落ち refers to general color fading or loss, while 斑消え specifically means uneven or patchy fading.
斑 means 'unevenness' or 'spots' and is the root of 斑消え; 斑消え is the noun form describing the result of uneven disappearance.
Compound of 斑 (むら, 'unevenness, spots') and 消え (ぎえ, the nominalized form of 消える 'to disappear'). The reading ぎえ is a rendaku form of きえ.