As-salamualaykum wr
Do the napak clothes become pak after washing in washing machine?
Allah Hafez
الجواب وبالله التوفيق
Yes, by using washing machines the clothes do become paak(pure) if the washing machines have the following characteristics:
1- Wash the clothes at least 3 times by taking new batch of water each time
2- Squeeze dirty water from the clothes each time
3- Flush out the old batch of water
By using the above method napaak(impure) clothes will become paak.
واللہ اعلم بالصواب