How to use laundry detergent

First, you should choose good quality good laundry detergent, don't want disorderly, pick a less known and inferior brand I was using a cleaning detergents, decontamination ability is very strong, don't wash. As for the method, can't pour the laundry detergent directly on the clothes!!!!!! Part that is likely to lead to clothes color (especially in high concentration and the collar of the net). Should pour the laundry detergent in warm water mixing, put the clothes into it. Warm water decontamination effect is best, if it's the hot water is almost ruined the laundry detergent decontamination enzyme, can wash it in cold water, is no warm water better.