In the Critique of Judgement Kant tries to characterise the aesthetic judgement as (among others) universal, i.e as a judgement that we can demand others to have as well as us. If I understand correctly it's connected to two other moments that characterise the aesthetic judgement: its being disinterested and its being purposive without any purpose.
While I can understand the idea behind disinterestedness and behind purposiveness without a purpose, I can't understand the notion of universality and how it stands in relation to the other two.
Can you make sense of it?