A woman that has a few shaitels (wigs) she washes every week, can she use a washed shaitel for Shabbos Chazon?

On question 201 regarding if one can wear a freshly washed Sheitel during the nine days, if its not a new wig; we wrote “Horav Shlomo Miller Shlit”a ruled that you can use a freshly washed and set wig for Shabbos Chazon, even if it coincides with Tisha B’av.” Although one is not allowed to wash a Sheitel during the Nine Days, when it is washed frequently, it is considered similar to a washed shirt that one can use for Shabbos during the Nine Days.