There are various brands of washing powder in the supermarket. Looking at the price, the cheap ones are 7 or 8 yuan, and the expensive ones are more than 20 yuan. Some people think that cheap is not good, and you get what you get for every penny, while others look for cheap. Does the price of washing powder have anything to do with the effect?
In fact, the effect of various types of washing powder is similar
Everyone often sees the first shot in the advertisement, where the child gets his clothes dirty, and the second shot soaks the clothes in water with washing powder and shakes them off to make them very clean. Is it really possible to achieve this effect?
Someone bought 3 kinds of washing powder, 9 yuan, 11 yuan, and 16 yuan per kilogram, respectively, and poured a spoonful of each into 3 water basins. Drop ink on 3 white towels, then soak the towels in the three basins of water and rub every 15 times.
It turned out that the effect of washing powder at 3 price points is similar, and it turns out that the advertisement is just an advertisement…
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Whether it hurts the hands depends on the alkalinity of the washing powder. The pH value detection can measure the content of alkaline substances in the washing powder. Determination of the pH value of washing powder at three price points, the pH value of 9 yuan is 10.6, the 11 yuan is 10.7, and the 16 yuan is 10.8.
Therefore, it cannot be said that cheap washing powder will definitely hurt your hands. Laundry powder contains alkali, and it is normal for hands to feel dry and astringent after washing. To avoid hurting your hands, it is recommended to wear rubber gloves when doing laundry.
The more expensive the washing powder, the worse the detergency?
Surfactant is the most important raw material in washing powder, and it is the key substance for the decontamination effect. In theory, the more expensive the laundry detergent, the higher the surfactant content. In reality, however, this is not entirely the case.
The washing powders of the above 3 price levels were tested, through a series of steps such as weighing, suction filtration, water bath drying, high-temperature baking (105 ℃), room temperature cooling, etc. The final determination result: the lower the price of washing powder, the more surface-active The higher the content of the agent, the more expensive the lower the content. why is that?
Experts said that the more expensive washing powder adopts the compound method. Although it contains a variety of surfactants, only one can be detected. The higher-priced washing powder also adds a lot of auxiliaries and other additives. The more ingredients, the more expensive the price. However, this does not mean that the washing effect of expensive laundry detergent is poor.
Hebei Guangsheng Technology Co.Ltd
