They were dark vs light items.

Im a subscriber with access to a stronghold and my own ship im level 30 at the moment, i unboxed a few crates and got excellent cartel market armour and kept it on me for a while. ive recently tried to store it and with big bold red text it says "Item is bound". I know there is time restrictions but they have gone. Im trying to manage inventory and this isnt helping, any ideas?