It is well known that the fabrics used in making high-end ties are vulnerable (such as printing, silk ties). A little bit of ink, coffee, etc. can stain the tie, and if you are not careful, it will cause stains that can not be cleaned. Even if you can remove stains, the cleaning process may damage the neckties.
However, if you are unfortunate enough to stain your tie, you can use a paper towel or handkerchief to press the juice on the stain to dry, do not wipe the stain, may expand the scope. Then you can try to wipe it with a wet towel to see if it can be removed and then blow dry with a blower. To prevent high temperature damage to fabrics, hair dryer is best not to be too close to the tie.
If the above method is not successful, you can try to wash your necktie with clean water. Washing with water will cause necktie to shrink; do not put your tie in the washing machine to avoid tie deformation. First, dip the stain into the water, then wipe the stain with your hands. To use cleansers, make sure they are mild in nature, and try on the back of the tie (or anywhere else it won't be seen) to see if it will wash away the color of the tie or damage the fabric.
Of course, the best way is to send it to the dry cleaners, and the dry cleaners will have a more professional approach.