|When making adjustments to my pattern paper (or when I more than likely tear a hugh hole in the tissue) I used to use regular roll tape to tape the hole or to adjust the pattern paper. For those of you who also do this, you know that you can't iron over the tape or it will just shrink am bubble.
Well, I found out that Johnson & Johnson paper medical tape works awfully well for this purpose. (The link I provided may NOT be to the exact product. But i'm sure it's close) It doesn't bubble or shrink at all if touched with the iron. The iron will make the tape almost permanet though, so keep that in mind.
By comparison to regular tape, this stuff is pricey, but it's worth it to not have to worry about it while ironing.