This product detergency and washing powder is? if it iswashed with washing powder washing away dirt with this product is clean away? local clean this product isconvenient for clothes washing free? aimed at just dip nearbesmirch effect is obvious? the dip in time more than aweek of stains can only dilute cannot be completely removed? not stubborn stains detergent? decontaminationforce if too strong side will damage the clothing color?please dear knows!