Unfortunately it’s in the nature of wool blankets to attract lint. When you have a dark colored wool blanket such as black or brown, the lint will therefore show up much more. Because the natural tendency of wool is to attract lint there isn’t a lot you can do to prevent that natural habit, but there are some things you can do to lessen it’s effect on your wool blanket.
For starters, the darker your vintage wool blanket is, the more lint will show up generally, so if it’s a major problem remember that the lighter colors will show less lint and might be a better option when you are picking out your wool blanket.
If you do have a dark vintage wool blanket that is suseceptable to picking up and attracting lint you can help prevent how much lint shows but wearing lighter color clothes when you are using it. This wont stop the lint from getting on the wool blanket but will prevent how noticeable it is.
Another thing you can do on top of that is to wear clothes that are less likely to shed lint. Some clothes are much more likely to be lint sources and avoiding these types of clothing when you are using your wool blanket will prevent a lot of the problems. If you combine this with the lighter color clothes it should noticably reduce how much lint is on the wool blanket, and the lint that is on there, will hardly be noticable.
You can purchase and use a basic lint brush if the lint gets too bad on your wool blanket. You can get compact sized lint brushes which should do the job fine. Since there is a good chance you will be using your woolen blanket at a house, having a normal sized lint brush shouldn’t really be inconvenient.
If you don’t have access to a lint brush you can always use tape, with scotch tape being the best option for lint removal.
There are some types of wool that will attract more lint and will have it stick to it easier. When purchasing your wool blanket you might look at the properties and information about the specific type of wool that is used in the blanket to find out more information on whether or not it does attract or repel lint.