Prevent Angora From Shedding How Can I Prevent A Sweater From Shedding?

How can I prevent a sweater from shedding? - prevent angora from shedding

I bought a 50% viscose, 30% cotton, 15% angora, 5% cashmere sweater. I have to be treated once for about an hour and with my fur coat in groups. I checked several online sites, and there are different opinions about what should be done to prevent leakage. No idea what to do with this mix of knit?