Hi all, thanks for looking hopfully someone can help!

I want to do the generic animated ribbion look, which animates around a sphere shape.

But I'm not sure on how to do the revealing part or make the ribbion grow so it becomes quite long and wraps the object a number of times.

I'm hoping someone has done this before or knows where a tutorial might be that covers this somewhere?

Please help - this is for a major project im doing.

Thanks
Bacon