Scented washing powder is not good Discrimination: correct Most people who buy washing products not only consider whether they are clean, but also consider whether they smell good. However, most spices are synthetic chemicals, 95% of which come from kerosene, such as benzene and aldehydes. These substances may cause cancer and reproductive disorders, but more commonly they cause allergic dermatitis.
Hand wash clothes without detergent Discrimination: correct After the skin is directly exposed to alkaline detergent for a long time, the weak acid environment of the skin epidermis will be damaged, and its effect of hindering the breeding of bacteria will disappear, which is easy to cause skin pruritus, even allergic dermatitis and other symptoms, or leave pigment deposition on the skin. So when washing clothes by hand, it’s best to use soap.
Washing powder can be used in many ways Discrimination: error In life, many people use washing powder as a “universal cleanser”. In addition to washing clothes, they also use it to scrub furniture and floors, thinking that it has the functions of decontamination, disinfection and sterilization. As everyone knows, doing so may cause washing powder to enter the human body. Experts suggest that even if the amount of washing powder entering the body is very small, it will cause poisoning. Do you dare to use more when using one washing powder?
The effect of multifunctional washing powder is good Discrimination: error Many advertisements for washing powder claim to add some new formulas, which have more and stronger washing effects. These formulations mainly include surfactants, washing AIDS and enzymes to achieve the purposes of easy dissolution, cleaning, softening, foaming and eliminating static electricity of clothes. But more substances are added to washing powder, which is not good for our health. The commonly used lotion is harmful to human liver; Surfactants have long been found to damage the cuticle of the skin and cause rough skin. Now they have been regarded as an important public hazard polluting the environment; The alkaline substances contained in strong washing powder can not only affect the water quality, but also damage the human cell membrane and denature the structural protein; The organic chlorine and fluorescent agent contained in whitening washing powder are toxic substances, which can easily accumulate in the human body and cause harm to health.
Washing powder and disinfectant are the best partners Discrimination: error When washing clothes, many housewives are used to adding some disinfectant in order to eliminate bacteria. Some people simply put washing powder and disinfectant into the washing machine at the same time. In fact, this not only has no bactericidal effect, but also does harm to people’s health. Disinfectant is a kind of phenol disinfectant containing chlorine. Excessive or incorrect use will also cause harm. The washing powder mostly contains surfactants. If the washing powder is mixed with disinfectant, it is easy to produce chemical reaction and weaken their functions. In addition, if chlorine containing disinfectant is mixed with acid containing washing powder, chlorine will be produced. When the chlorine concentration is too high, it will stimulate people’s eyes, nose, throat and other organs. In serious cases, it will also damage people’s cardiopulmonary function and even endanger life. Therefore, the normal washing method should be: add 3 ~ 5 drops of disinfectant into a bucket of water of the washing machine, or add water to form a 1% ~ 5% disinfection solution, Soak clothes and sheets for 30 ~ 60 minutes, and then wash them normally with washing powder.
Washing powder also has a shelf life Discrimination: correct Under the correct storage environment, ordinary washing powder can generally be guaranteed for two years, while the service life of washing powder with special ingredients may not reach two years. When storing the washing powder, it is best to put it in a plastic bottle or jar with a lid. On the one hand, it can prevent the washing powder from moisture absorption and caking; On the other hand, it also prevents fragrance from volatilizing, so that people can breathe more synthetic flavors.
Washing clothes in hot water makes them cleaner Discrimination: error Washing clothes at home often requires rinsing in order to fully soak the clothes with water. After the fabric fiber is immersed in water, the water-soluble dirt can be melted, so as to reduce the amount of detergent and enhance the cleaning effect. The higher the water temperature for washing clothes, the better. As we often use all kinds of detergent containing enzymes, the enzyme preparations mainly include alkaline protease and alkaline lipase. Alkaline protease is used to differentiate protein stains, such as sweat stains, blood stains, etc; Alkaline lipase mainly acts on fatty acids and their esters, which is what we usually refer to as oil pollution. The activity of the two enzymes is related to temperature, and about 40 ℃ is the most suitable. Too high or too low temperature will affect the activity of enzyme. Secondly, protein has denaturation, and its remarkable characteristic is protein solidification, which significantly reduces the fluidity. The solidification of eggs after cooking is an example. One of the causes of denaturation is high temperature. The same is true for protein dirt on clothing. Therefore, if the water temperature is too high when washing, they will denature and agglutinate on the fabric fibers, making it more difficult to wash.
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