Can I use the hat to make Multiple effects that are layered? I.E. I look like a Ogre over looking like a goblin, over looking like my self using a disguise kit with the +10 to Disguise to just not look like me?
No, you can't.
A Hat of Disguise allows its wearer to alter her appearance as with a disguise self spell.
You could stack several Disguise Self spells to achieve the desired "layered" effect, as per the rules:
Combining Magical Effects->Stacking Effects->Same Effect with Differing Results
The same spell can sometimes produce varying effects if applied to the same recipient more than once. Usually the last spell in the series trumps the others. None of the previous spells are actually removed or dispelled, but their effects become irrelevant while the final spell in the series lasts.
BUT, the Hat of Disguise doesn't let you cast Disguise Self at will, it only allows you to alter your appearance as with that spell, so, there is only a single magical effect active on you, that gets modified each time you use the item. Therefore there is nothing to stack, or to layer.
You could stack the Hat of Disguise with a casting of Disguise Self though.