To dream of a tie represents a sense of obligation and responsibility towards something in your life. How tight or loose the tie is indicates how obligated or responsible you feel.
To dream of a bow tie represents feelings of obligation or responsibility to behave. Feeling obligated to be a wonderful, helpful, or considerate person. Obligation to be loyal or faithful. Negatively, it may be a sign that you are being too nice or too considerate to people that aren't respecting you.
Example: A man dreamed of seeing his father in art class wearing a red tie. In waking life his father had died and he felt obligated as his son to explore a number of art books his had in order to understand his father more.
Example 2: A man dreamed of bow tie that was broken. He took the bow tie to numerous stores, but no person could fix the bow tie. Finally, a woman in a shop told the man that he should just give up and accept the tie as broken. In waking life the man felt that his alcoholic wife didn't appreciate him no matter how well he treated her. He eventually had to accept that the marriage was over and left her. The bow tie in this case may have reflected the dreamers feelings about himself deserving to enjoy himself inside his marriage being a wonderful faithful husband and be aware that he would never be respected that way by his wife ever again.
Example 3: A man dreamed of seeing a tie sitting on a couch beside an evil person. In waking life he was experiencing threats of violence if he decided to get serious about filing police reports against someone. He felt obligated to file the police reports, but also felt it was dangerous.