You might try a different approach, one that I have found works with new introductions. First, put the kitty in a room with a door, and let it have free run of the room...for two days or so. That gives everyone a chance to get used to the new smells. Then, let one dog at a time in, in a very supervised setting...with you very close to the dog...a few times a day. Switch dogs, same thing. I would think by week's end, things should be ok. I do not recommend quick introductions- even IF the animals lived together at one time before. It really isn't fair, and can be quite damaging to the cat's character to confine it in a towel while big dogs (to her, they are probably considered big) sniff her....