Second, please pay attention to the label when buying. Qualified washing liquid packaging should be marked with product name, net weight, product instruction manual, factory name and address, shelf life, etc.
Third, the real washing powder has a lasting fragrance. If it's not good, it will be a little sour and astringent.
Fourth, when purchasing, ask more about the historical background, professional level and brand reputation of the production enterprise.
5. A good cleaning solution can be touched by hand, with moderate viscosity and uniform composition; Bad washing liquid can be thick or thin, with sediment at the bottom.
Sixth, look at the qualified sign. Authentic quality signs are bright and dark, and false signs are light in color. As shown in the figure, the color of the washing liquid conformity mark 1 on the left is lighter, and the color of the genuine conformity mark on the right is darker.
Seven, scan the QR code. Now many mobile phones or software have the function of scanning bar codes. Turn on your mobile phone and scan it. Look at the barcode on the label. If it is true, there will be all kinds of information about the product and the retail price. Otherwise, there is nothing.
Extended data:
1, the working principle of washing liquid is similar to that of traditional washing powder and soap. The active ingredients are all surfactants.
2. The difference is that traditional washing powder and soap are anionic surfactants, mainly sodium alkyl sulfonate and sodium stearate, which are very alkaline, so they are very irritating and harmful to the skin.
3. The main component of washing powder is nonionic surfactant, which has strong decontamination ability and can go deep into the interior of clothing fiber to play a washing role, so the decontamination is more thorough.
4. Washing powder can't be completely dissolved in the process of use, and the residue is easy to damage clothes and not easy to rinse; The washing liquid dissolves quickly and thoroughly, is easy to bleach and wash, and will not damage the skin and clothes.
5. The washing liquid has high technical content and is convenient to add various effective ingredients. Washing can make clothes fluffy, soft, smooth and bright, and has the functions of sterilization and lasting fragrance. The use of low comprehensive cost is widely accepted.
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