Do you know what should be paid attention to in washing powder?

The main components of washing powder are anionic surfactant, sodium alkyl benzene sulfonate, a small amount of non-ionic surfactant, plus some additives, phosphate, silicate, yuanming powder, fluorescent agent, enzyme, etc., after mixing , powder spraying and other processes, and now most of them use 4A fluorspar instead of phosphate. Laundry powder refers to powdered (granular) synthetic detergents. Introduction: There are five categories of ingredients in washing powder: active ingredients, auxiliary ingredients, buffer ingredients, synergistic ingredients, dispersant LBD-1, and auxiliary ingredients. The main components are: fabric fiber scale inhibitor, anionic surfactant, nonionic surfactant, water softener, dirt suspending agent, enzyme, fluorescent agent and fragrance, etc. Poor washing powder often contains phosphorus, aluminum, alkali, etc. Harmful ingredients. The function of surfactant in washing powder is to make the washing powder dissolve, emulsify, penetrate, clean, sterilize, soften, foam, prevent clothes from static electricity and other functions. Synthetic surfactants have long been found to have side effects such as making hands thicker, and are now regarded as a major nuisance that pollutes the environment. In addition, phosphorus and aluminum alkali, especially phosphorus, have been banned from being used in washing powder in some developed countries. However, many chemical plants in China are still producing this product. Active ingredients: Active ingredients are the ingredients that play a major role in detergents. Washing active ingredients are a class of substances called surfactants. Their function is to weaken the adhesion between stains and clothes. Under the action of mechanical forces such as washing water flow and hand rubbing or agitation of washing machines, the stains are released from the clothes. To achieve the purpose of washing clothes. Note: 1. To achieve good decontamination effect, laundry detergent should contain enough active ingredients. In order to ensure the washing effect of washing powder, the national competent authority has stipulated the minimum content of active ingredients in washing powder. According to the type of active agent used and the type of product, the amount of active ingredients in washing powder should generally not be less than 13%; 2. Because many surfactants have strong foaming ability, consumers can judge the pros and cons of washing powder based on experience, from the foaming situation of washing powder after dissolving in water; 2. However, some washing powders specially used for drum washing machines have much worse foaming ability than ordinary washing powders. This is because the drum washing machine mainly relies on the mechanical force generated by the tumbling of the clothes in the drum to achieve the purpose of washing the clothes; and too much foam in the washing solution will greatly weaken the mechanical force generated by the tumbling of the clothes. Makes the cleaning effect greatly reduced. Builder ingredients: Detergent builders in washing powder are the most used ingredients, generally accounting for 15%-40% of the total composition. The main function of the builder is to soften the water by binding the hardness ions contained in the water, thereby protecting the surfactant to maximize its effectiveness. The so-called phosphorus-containing and phosphorus-free detergents actually refer to whether the builder used is phosphorus-based or non-phosphorus-based. Note: 1. Some provinces and cities have enacted local regulations that prohibit or restrict the sale and use of phosphate-containing detergents. 2. Among the non-phosphorus-based builders, a substance known as zeolite is recognized by the industry as a good substitute for phosphate components. 3. In addition to this, there are various 'cheap' phosphorus-free builders such as sodium carbonate (soda ash), sodium silicate (water glass), and their complexes in various proportions. Since these non-phosphorus adjuvants eventually form a water-insoluble precipitate, if they are not effectively suspended in water, they will sink on the clothing. Long-term use of this phosphate-free detergent will result in hard, yellowing clothes. To prevent this from happening, a well-designed phosphate-free detergent is formulated with an effective dispersant so that the insoluble particles that do not deposit on clothing are not formed. Buffering ingredients: Common dirt on clothing, generally organic stains, such as sweat, food, dust, etc. Organic stains are generally acidic, and making the washing solution in an alkaline state is conducive to the removal of such stains, so a considerable amount of alkaline substances are added to the washing powder. Commonly used are soda ash and water glass. Note: 1. Although alkalinity is beneficial to the washing of clothes, excessive alkaline substances will cause damage to clothes and skin. Therefore, the country has made corresponding regulations on the alkalinity of washing powder, and qualified washing powder should meet these requirements. 2. In addition, as mentioned above, these alkaline substances will form precipitates with hard water, and too much alkaline substances will lead to the formation of a large amount of precipitates during washing, which will make the washing effect worse. Synergistic ingredients In order to make detergents have better and more washing-related efficacy, more and more detergents contain ingredients with special functions, which can effectively enhance and improve the washing performance of detergents. According to functional requirements, there are several types of synergistic ingredients used in detergents: those that improve the cleaning effect, such as enzyme preparations (protease, lipase, amylase, etc.), bleaching agents, bleaching accelerators, etc.; those that improve whiteness retention ,Such as anti-redeposition agent, soil dispersant LBD-1, enzyme preparation (cellulase), fluorescent whitening agent, anti-staining agent; protection of fabrics to improve fabric hand, such as softener, cellulase, antistatic agent, protective agent Colorants, etc. Note: In fact, many brands of detergents use the same key ingredients, and the magic of each product is often in these synergistic ingredients. The use of various enzyme preparations can greatly enhance the cleaning ability of detergents on special and difficult-to-wash stains, such as blood stains, sweat stains, food oil stains, vegetable and fruit stains, etc.; bleaching agents can decompose and remove pigment stains; Deposition agent keeps clothes from greying and yellowing after multiple washes. Auxiliary ingredients: These ingredients generally do not improve the washing ability of the detergent, but play a greater role in the processing process of the product and the sensory indicators of the product, such as making the washing powder white in color, uniform in particles, no agglomeration, and pleasant in aroma Wait.
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