When washing clothes with soap or washing powder, soap stains will appear on the clothes due to poor rinsing, especially when washing down jackets, soap stains will appear due to too much soap liquid and rinsing them. Therefore, when washing clothes, you must master the concentration of detergent, the temperature and number of rinsing water. It is best to add an appropriate amount of acetic acid to the rinsing water to neutralize the soap and alkali residue remaining in the fabric fiber. If soap stains appear, you can use a warm towel to wipe it repeatedly, and you can use a cotton ball or cotton cloth to dip it in alcohol to remove it.
When drying clothes, some drying them because they are not completely dehydrated, which often causes faint traces of dry cleaning agent on the clothes, which can be eliminated by ironing with a steam iron.