Cheerfulmama,
Perhaps google could have been of assistance as you said yourself you had no idea that these sort of products even existed;
on your remarks on hygiene, here's the product specifications for Sangenic Hygeine Plus Nappy Wrapper;
Sangenic Hygiene Plus is the new advanced hygiene nappy disposal system. It twists and seals away each nappy to lock in smells, germs and mess. It is the simple way of dealing with nappy disposal, and means a lot fewer trips to the outside bin.
* Twist-lock? technology wraps and seals each nappy individually and is 100 times more effective at odour prevention than nappy sacks*.
* Germ-seal? anti-bacterial film keeps on killing germs inside the tub, providing unbeatable long lasting hygiene protection.
* Unique easi-push? plunger pushes nappies into the tub.
* Tub holds up to 28 nappies and the film cassette lasts about a month**.
If it's not for you, fine. Next time a little common sense and research may go a long way