1. It is not only the washing powder and water that can create a bubble. Because of ordinary water, stirred up in an instant by the bubble burst, this is because the average of the surface tension of water is called a force, is an energy of the surface of shrinkage, it can be to squeeze the bubble membrane inward until the break. So the foam doesn’t build up, and you don’t feel a bubble.
2 .Water, detergent, washing powder, and shampoo water contain compounds called surfactants washing ingredients.It can reduce the surface tension of the water and be alleviated to internal compression strength, which can guarantee bubble is longer than the time will not burst, namely: did you see the more the mess up the bubble.