I once washed a roll of 35mm 400 Kodak color film in a load of laundry after shooting it and got similar effects. I used 'natural' laundry soap. It turned the overall color palette kind of green and blobby, but with yellow streaks throughout, but it also maintained good detail. It happened to be a shoot from after my group got caught in a sandstorm in the Black Rock desert, so it contributed to the overall effect nicely. I would actually recommend washing it after shooting it rather than before as I don't think I would want to risk my camera.