What's the name of the soap for washing hands? Soap is a very common product in our life, and everyone should be familiar with it. We can learn a lot about soaps with different functions from the market, some for washing clothes and some for bathing. What are the following soaps for washing hands?
What's the name of the soap for washing hands? 1 laundry soap:
The alkali content is the largest in soap. Its ingredients are all kinds of animal and vegetable oils and hydrogenated oils, and the production process does not need to be complicated and elaborate. Therefore, although laundry soap is cheap, it is not suitable for washing hands, otherwise alkalinity will irritate the skin.
Soap:
Generally, soaps have antibacterial components, which can remove bacteria and viruses that cause skin infections and sweat smell, and also inhibit bacterial regeneration. Therefore, washing hands with soap can not only remove dirt, but also moisturize the skin, disinfect and sterilize.
Medicinal soap:
One of the pharmaceutical ingredients added in traditional medicated soap is phenolic compounds, which will turn red after oxidation. Most of these medicated soaps are red, commonly known as Su soaps. Another kind of medicated soap is boric acid soap, carbonated soap, etc. You can smell the acidic smell by adding oxidant to the soap body. Therefore, medicated soap has the best cleaning and sterilization effect, and can be used for bathing, washing hands, even washing patients' clothes or as other disinfection detergents. Su soap, boric acid soap and carbolic acid soap are obviously irritating to the skin, and the skin may be allergic if used too frequently.
Sulfur soap:
It has the efficacy of killing bacteria, fungi and mites, and has certain preventive and adjuvant therapeutic effects on some skin diseases. The concentration of sulfur soap is much lower than that of sulfur suppository used in clinic, but it is not recommended to use it continuously for a long time. It is recommended to use it intermittently, for example, twice a day at the beginning, once a day and once every three days after the symptoms are relieved, and then gradually stop using it until it stops. Long-term use of sulfur soap will not lead to flora imbalance and reduce skin resistance, but it is easy to dehydrate the skin, resulting in dry skin peeling.
The types of soap are mainly as follows:
1, according to the main components: sodium soap, potassium soap and organic ammonium soap.
2. According to additives, it can be divided into peroxide soap, urea soap, sand soap, synthetic soap and compound soap.
3. According to the appearance, it can be divided into transparent soap, translucent soap, liquid soap (actually shower gel), paste soap, pattern soap, paper soap, soap chip and broken soap.
4. According to processing methods: mechanical soap, frame soap and liquid soap.
5. According to the use, it can be divided into cosmetic soap, deodorizing soap, sterilizing soap, slimming soap, medicinal soap, shaving soap, hand washing soap, face washing soap, baby soap, aged soap, skin nourishing soap, etc.
The reason why soap has not been eliminated.
1, surfactant instead of soap is not reliable.
Surfactants are all petroleum compounds, and their prices are extremely low. During the preparation process, there will be 100% dioxane residue, but it is far below the pathogenic dose. Coconut amido acid made from coconut oil will only be used in some cases, but not in other cases, because of the high cost.
2. The perfume used for soap is more advanced.
Soap is different from surfactant, it is unstable in direct contact with air and easy to be oxidized. Therefore, the spices used in soap are all high-grade goods, and it is necessary to ensure a stable fragrance in a humid and easily oxidized environment, while the spices used in facial cleanser and hand sanitizer are much simpler because the environment is stable.
3. When making soap, glycerol can be made by the way.
Glycerol is a very important raw material in daily chemical industry at present. The cost of synthesizing glycerol is very high, which is much lower than that of taking glycerol while making soap. Therefore, major manufacturers are producing soap at full capacity.
What's the name of the soap for washing hands? Top ten brands of soap for hand washing.
1, Shufujia security guard
Brand introduction: One of the daily necessities brands of Procter & Gamble Company is a famous personal cleaning and nursing brand. 1963 was first listed in the United States and sold well all over the world. Its main products include shower gel, soap, hand sanitizer and vitality sports series.
2. Shanghai soap
Brand introduction: Shanghai Soap belongs to Shanghai Soap Co., Ltd., which is a brand with soap as its main product.
3. Lux
Brand introduction: Founded in 1889, it is a nursing brand under Unilever. 1924, Lux first introduced the first beauty soap in America. Its main markets include Arabia, India, Brazil and China. Its products include shampoo, conditioner, shower gel and soap.
Brand conditioner, shower gel, soap, etc. See the details and pay attention.
4. Mom chooses Lamama.
Brand introduction: The clean brand of Weilai (Guangzhou) Commodity Co., Ltd. was founded on 20 15. Mother Yi Xuan adheres to the concept of "family health, mother is at ease", takes protecting family health as her own responsibility, carefully selects natural raw materials, and carefully develops cleaning products such as mother Yi Xuan tableware net and natural soap, which is the quality choice to protect family health.
5.longrich
Brand introduction: Founded in 1986, it belongs to Jiangsu Langruiqi Biotechnology Co., Ltd., and its products include beauty and skin care, personal care, daily necessities, child care, men's care, health food and so on.
6. Weijieshi Walex
Brand introduction: Walex is produced by Weilai (Guangzhou) Commodity Co., Ltd., which belongs to the same company as Verus and Liang Jing, focusing on household cleaning products such as laundry detergent and disinfectant.
7. Superpower
Brand introduction: A well-known brand of laundry detergent was introduced by Nais Group after Nais. In the early days, it was mainly made of natural soap powder, and it was also the earliest brand in China to launch laundry gel beads. Chaoneng defines all women who love life, pursue perfection and constantly surpass themselves as "super women", and also helps Chaoneng women enjoy a higher quality, healthier and more environmentally friendly exquisite life through super laundry detergent which is easy to rinse, has no residue and protects clothes and skin!
8.pigeons
Brand introduction: A well-known brand of maternal and child products from Japan was founded in 1957. Beiqin is committed to providing consumers with high-quality, full range of maternal and child products and services. Since 2002, it has officially entered the China market, and has three factories in China: Waigaoqiao, Qingpu and Changzhou. Beiqin products cover breast-feeding, bottle nipple, baby skin care, clothes cleaning, water cup tableware and other baby care products.
9. Qiqiang KEON
Brand introduction: The brand was born in 1992 and belongs to Nanfeng Chemical Group Co., Ltd. KEON series detergents are well-known protection, national inspection-free products and China famous brand products. Products include washing powder, soap, hand sanitizer, toothpaste and so on. Among them, the production and sales of washing powder, soap and liquid washing are currently among the best in the country. In 2000, we formally signed a strategic partnership agreement with Wal-Mart to contract for its own brand, and the two sides cooperated to promote Qiqiang washing powder.
10, Runben Runben
Brand introduction: Guangzhou Feng Run Baby Products Co., Ltd. was founded in 2006. Runben mainly focuses on natural and healthy baby skin care products, not relying on gorgeous packaging or celebrity spokespersons. Runben has always relied on the quality and strength of products to maintain people's hearts, and has won unanimous praise from consumers in the domestic maternal and child market.
What's the name of the soap for washing hands? What's the difference between soap and soap? The principle of soap sterilization?
Let's start with the origin and historical evolution of soap. Soap is a detergent used to wash dirt, and its etymology is "blowing dirt". It means "stealing bases". The history of human beings using soap has a long history, but for a long time, soap was only a luxury used by the upper class.
These limits were broken by French chemist Leblanc in the18th century. 1775, the academy of sciences put forward an open recruitment topic about washing soda, and LeBron developed the world's first artificial soda manufacturing method in 1789. LeBron's public law is the only way to produce washing soda in the whole19th century, which has made great contributions to the popularization of soap and the improvement of public health care.
The meeting of oil and ash
It is said that soap was first made by Babylonians around 2800 BC. During the excavation of Babylonian cultural relics, a clay jar containing soap-like substances was found, and there was a record of mixing oil and ash to make soap at the side of the jar. That is to say, after humans began to barbecue with fire, the chances of oil and ash meeting increased, which led to the birth of soap.
Murals of Egyptian tombs depict women using soap.
The ancient Romans used sandpaper (Sapo) to build a complex on this mountain, and then burned sheep to worship the gods. After the sacrifice, the person in charge of cleaning took away the ashes left by the burning house and put them in a bucket. His wife washed the rag in this bucket and found that the dirty things had fallen off. Because the sheep burned in the ashes thrown into the bucket and leaked melted oil. Since then, the Romans have called these putty sandpapers, which is the etymology of the so-called "soap" today.
The famous Roman scholar Pliny wrote soap (sandpaper) in China Natural History: "Soap is made by Gauls. They keep their shiny red hair with soap. Therefore, soap is useful. Soap is made from animal oil and ashes. Especially sheep oil and beech ash, it is best to use soap-based materials. There are two kinds of soaps, one is liquid soap and the other is solid soap. Germans prefer men to use soap, not women. "
In addition to the mixing method of oil and ash in the middle ages, a new method of making soap was tried. In the 8th century, savona and other Mediterranean coastal areas began to use olive and seaweed oil to produce soap. Then in the 12 century, the method of making white soap with natural soda (commonly known as sodium carbonate) instead of alkali liquor was developed. However, olives and natural soda are very precious, and there is still a long way to go to popularize soap.
The most primitive form of soap is lye. In Europe, resin (animal oil) is mixed with lye. In 1930s, soap became popular, and it was also called stone feeling. In addition to lye, there is also a base material made of red beans, which is a high-grade cleaner and was used from Silla to the end of Han Dynasty.
The production method is to put red beans in a stone mill and grind them into powder as fine as rice noodles with a sieve. It is said that after washing your face with clear water, you will get red bean powder on your hands and rub it on your face to remove dirt and make your skin soft. Besides red beans, there are also mung beans and beans.
It is not surprising that the detergent or soap made for the first time in history was extracted from plants. In the 2nd century BC, the Hittites in Asia Minor bathed them with boiled water from the leaves or roots of Saussurea involucrata. Soap grass contains a natural cleaning ingredient called saponin. They use Gleditsia sinensis not because they know its composition, but because the leaves of Gleditsia sinensis are crushed and rubbed in water to produce foam.
Not only that, the ashes of other plants like soap grass also have good cleaning ability, and alkali substances that are easily soluble in water contain a lot of ingredients. The word "alkali" was originally Greek, meaning "burning the ashes of plants".
However, it was not the Hittites who played a decisive role in the appearance of soap, but the Phoenicians who conducted maritime trade in the Mediterranean around 600 BC. But the Phoenicians did not know these chemical actions when they made soap. They boil plant ashes, water and sheep oil together, then evaporate the water and wash it with the remaining beeswax and other substances. In other words, this substance similar to beeswax is the first soap.
Generally speaking, soap needs not only alkali (such as potassium carbonate), but also fat. These two things are mixed and heated, and then react with each other to produce an emulsified component with polar alkali and fatty substances, which is hydrophilic and easy to combine with water molecules, but not polar hydrophobic. Therefore, the molecules of soapy water are closely related to things other than water (such as dust), and the close dust is washed with soap bubbles. This is the basic principle of making detergents and soaps today.
What is the difference between soap and soap?
There is no big difference in essence, and the production method is the same. There is soap in the earliest history, whose main function is decontamination. Now, soap can't meet everyone's needs, so soap appears. Soap adds more ingredients and functions to soap, and then with the progress of society, there are more and more kinds of soap, which gradually evolved into what it is today.
Taste difference
In order to meet people's needs, some scents are added to soap. Good soaps add natural plant odor, while some inferior soaps add pungent essence.
Functional component
Soap is the first choice for washing clothes because of its strong alkalinity and strong decontamination ability. Soap adds ingredients that are beneficial to the skin, such as cleaning and moisturizing, and the style of soap is better.
The principle of soap sterilization?
Soap is just like separating dirt. The action of washing hands itself is to remove bacteria. Just like the principle of soap shedding, it plays a detective role. To break and destroy the cohesion between (cell membrane) and bacteria, soap can dissolve protein, and the cell wall of bacteria is a kind of protein called "peptidoglycan", which means that soap has the component of dissolving protein, which can dissolve the cell wall of this bacteria and make the bacteria die.