Q. Am I allowed to iron clothing during the nine days that was washed before the nine days?
What if I don’t plan on using it but just want to get it out of the way?

A. Shulchan Aruch (O.H. 551: 3) includes ironing in the prohibition of laundering. This applies from Rosh Chodesh Av onwards for the followers of Ashkenazi traditions, even if the clothing will not be used until after the nine days.(ibid.)

Rabbi A. Bartfeld as revised by Horav Shlomo Miller Shlit”a