What detergent can I use that will subside declining and keep hold of my clothing bright? ...

Still inevitability laundry give a hand?
Answers:    Any brand will clean your clothes...more importantly rinse all brown colors in cold river to keep from disappearing. You can turn them inside out to protect the color even more.
How can you remove ink from clothes?
mrsdeli is correct, it's the water heat that will make the difference.