1. Laundering may not be done, even if the clothing will not be worn until after the fast.

2. a. It is prohibited to wear laundered clothing, even though they were washed beforehand. This includes undergarments, towels, bed linens and tablecloths. These prohibitions apply to men and women, as well as children who are old enough not to become constantly dirty.

b. If the above items were used beforehand for a short time, and its freshness was removed, then it can be used.

c. Since it is difficult for one to wear one set of clothing for this entire time period, care should be taken to prepare beforehand. All clothing that he will require should be worn for a short time to remove some of the freshness and then the clothing can be used. These preparations should be made before Shabbat of the week in which Tishah B’Av occurs. If he did not do so before Shabbat, he may not intentionally prepare clothes on Shabbat for the weekdays, since it is prohibited to prepare from Shabbat for the weekdays. However, one can be lenient to change his clothes several times over the course of Shabbat as long as his intention is not solely for the weekdays i.e. one suit Friday night, a second suit Shabbat morning, a third change in the afternoon after his nap. 

d. New clothing may not be bought or worn. Clothing that still appears freshly pressed, may not be worn. 

3. One may not launder or clean the clothing for himself or others. A non-Jew is not permitted to do it for him either.

4. a. It is prohibited to give clothing to a non-Jewish cleaner or laundry during this week, even if it won’t be washed or worn until after Tishah B’Av.

b. It is permitted, however, to give the garments to a laundry or cleaners before the week in which Tishah B’Av occurs, even if he knows that they will be cleaned during this week.

5. An individual who only has one garment and it has to be laundered or cleaned — may not do so during the week in which Tishah B’Av occurs.

6. Laundering baby’s diapers and clothing is permitted. Also, it is allowed to wash children’s clothing which constantly become dirty, since there is no issue of pleasure involved. This clothing should be washed in private, in the house and not more than is needed.

7. Washing clothing for the purpose of mitzvah is permitted as follows: 

A woman who must wear white underwear for the Seven Clean Days is permitted to wash them if necessary, even in the week in which Tishah B’Av occurs. However, on Tishah B’Av this leniency does not apply.