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Why is low foam laundry detergent more suitable for machine washing?

by:Jingliang     2023-07-21
Anyone can do laundry, but not everyone knows how to choose laundry detergent. For example, there is a common sense that the washing powder used in the washing machine is low-foaming washing powder. Why is this? The washing powder processing factory is here to answer your questions. High-foaming washing powder will produce a lot of bubbles when washing clothes. The so-called high-foaming washing powder refers to the washing powder with sodium alkyl sulfonate as the main body. Sodium alkyl sulfonate is a chemical substance. In the molecular structure of anionic surfactants, a strong hydrophilic sulfonic acid group is combined with a hydrocarbon group, which has strong surface activity and good solubility in low temperature water. The foaming ability of sodium alkyl sulfonate is very strong, and it will generate a lot of foam when washing clothes and it is not easy to remove it. The high-foaming washing powder has rich foam and strong detergency. It is suitable for washing clothes by hand, and can be used for washing cotton and linen. In the past, people thought that the more foam the washing powder has, the better the ability to decontaminate. Therefore, the manufacturer involved a foaming agent (ie, surfactant) in the composition of the washing powder. With the development of science, the advancement of washing machines, and the advancement of people's understanding, the defect that high-foaming laundry detergent is difficult to rinse in machine washing has become more and more prominent. For this reason, low-foaming laundry detergents have appeared. Low-foaming laundry detergents have better cleaning results than high-foaming laundry detergents with less foam. The so-called low-foaming washing powder refers to the addition of a certain amount of soap flakes and a non-ionic surfactant called polyether on the basis of ordinary washing powder. When these two substances are mixed with sodium alkyl benzoate, there will be a synergistic effect between the molecules, which increases the wetting, dispersing, and solubilizing abilities that are closely related to detergency compared to the original single species. In this way, the decontamination ability of the washing powder is increased, and the foaming ability of the sodium alkyl benzene sulfonate is suppressed. In addition, the synergistic effect will make the film of the foam thinner and break up the foam already produced. This is the reason why low-foaming laundry detergent produces a small amount of foam and quickly disappears, and it is also the real reason why low-foaming laundry detergent is suitable for machine washing. It is worth mentioning that the difference between high-foaming and low-foaming should not be based solely on the number of foams, but should be based on the content of active substances. When citizens go to the supermarket to buy washing powder, they can confirm the active substance content and the difference between high and low foam from the packaging of the washing powder. Laundry powder packaging that conforms to national standards usually has a mark indicating low foam or high foam performance. The text logo mainly indicates the various effects of washing powder: such as high foaming and low foaming, whether enzymes can be added, etc. As a measure of the cleaning effect of laundry detergent, low foam means faster and cleaner rinsing, and the effect is more obvious when washing in the machine.
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