I just chuck them in at 40 degrees with everything else (I mean horsey stuff not underwear or bedding!). Although I can't remember the last time I washed the bandages as I don't boot or bandage, so they might need a cooler setting.
I don't use Anky stuff but am constantly washing fleece bandages as our mare has UV Photosensitivity and has her legs covered all the time (fun... with all the mud etc) and I just rinse them in a bucket at the yard to get the worst grime/sand off and then chuck them in the machine on whatever wash suits depending what else is in there and they come up fine. Don't use fabric conditioner usually as I don't want them too 'silky' so they slip down.