The padding inside BabyLove nappies is made from a mixture of wood pulp and a Super Absorbent Polymer called Polyacrylate. The Super Absorbent starts in a crystal form and turns into a gel when wet. This, combined with the wood pulp helps to prevent nappy leakage. In a machine wash the nappy would have absorbed an enormous amount of water. This, combined with the washing action, would have resulted in the nappy disintegrating into small pieces, most likely clumps.
You will need to clean both the washing machine and any clothes that were in the wash with the nappy. Firstly remove all clothes from the washing machine. Scoop out any left over nappy/pant, wood pulp and absorbency crystals that may be left in the machine. Remove and clean the machine filter, then replace. Once the filter has been replaced, run a normal wash cycle with no clothes in the machine. If you like, add some anti- bacterial liquid to the cycle to eliminate any germs present.
Once the machine is clean, re-wash any clothes that have nappy particles on them. If any item of clothing is severely affected, wash it separately by hand and then re-wash it in the machine. Once again add some anti-bacterial rinse to the wash if you desire. Clean the washing machine filter again once the cycle is complete. If there are any remaining particles on your clothes remove them with a lint brush once the clothes are dry.