When do you think soap came into existence in China?

Soap began to exist about 1,000 years ago, but at that time it was not called soap, it was some pig pancreas.

honey locusts, etc.

Ming Li Shizhen's "Compendium of Materia Medica" recorded the manufacturing method of soap balls: soap locusts are born in the high mountains, the trees are tall, the leaves are like sandalwood and honey locust leaves, bloom in May and June, bear pods of three or four inches, thick and fleshy, there are several sunspots inside, as big as fingers, not round, there are white kernels, edible. There must have been one before the Ming Dynasty.

Between 70 and 600 B.C., the ancient Phoenicians mixed goat fat with wood ash to wash away dirt. After a long time, people mixed grease and wood ash to make a block soap.

Soap is the oldest detergent, and its origin is based on an ancient legend: a synthetic detergent appeared during the Song Dynasty. It's soap.

I think the highest soap should be the Song Dynasty, when the economy was relatively prosperous, and soap was produced because of this, but it's just a personal guess.

The Chinese have long known about using plant ash and trona to wash clothes, and people also mix pig pancreas and lard with natural mule to make blocks, called "pancreas". It should be in the Song Dynasty.

Soap is a very common household item, it can wash dirt and make dirty things clean. I think it's been around since ancient times.

I don't think soap was made from breast milk a long, long time ago, and there was soap when there was a mother.

In the 8th century, in order to get rid of the stench of soap, people began to mix seaweed, wood ash and olive oil to create a scented soap.

It should have been in the era when there were dinosaurs.

Soap is the oldest detergent, and its origin is based on an ancient legend:

In the Song Dynasty, there was a synthetic detergent, which is to mash and grind natural honey locust (also known as soap horn, hanging knife, soap locust, commonly known as soap horn), add spices and other substances to make an orange-sized ball, which is specially used for washing the face and bathing the body, commonly known as soap ball. The Song Dynasty Zhou Mi Wulin Old Stories Volume 6 Small Brokers recorded that there were already businessmen who specialized in soap groups in Lin'an, Kyoto, Southern Song Dynasty.

Ming Li Shizhen's "Compendium of Materia Medica" recorded the manufacturing method of soap balls: soap locusts are born in the high mountains, the trees are tall, the leaves are like sandalwood and honey locust leaves, bloom in May and June, bear pods of three or four inches, thick and fleshy, there are several sunspots inside, as big as fingers, not round, there are white kernels, edible.

In October, the pods are picked, boiled and mashed, and the white flour and incense are used as pills, and the body is bathed, and the dirt is removed and greasy, which is better than the honey locust. 」。In addition to natural honey locusts, plants such as soapberry are also spread among the people and become a good detergent.

According to historical records, the earliest soap recipes originated in Mesopotamia in Western Asia (meaning "the place between two rivers", referring to the Euphrates and Tigris rivers). Around 3000 B.C., people mixed 1 part oil and 5 parts alkaline vegetable ash to make a detergent, and there are many legends about the origin of soap in Europe. Once, during the festival, there was a sudden heavy rain, and the hairstyle was drenched, but people unexpectedly found that the hair became clean.

Legend has it that when the Romans sacrificed to the gods, the barbecued beef and sheep fat dripped into the ashes of the plants and trees, and it was formed.

grease balls". When women do their laundry, they find that clothes that are stained with "grease balls" are easier to clean. This shows that people have been using animal fat and plant ash (alkali) soap for thousands of years.

Archaeologists have discovered soap-making workshops in the ruins of Pompeii, Italy. This shows that the Romans had already begun primitive soap production as early as the 2nd century AD. The Chinese also knew early on about using plant ash and trona to wash clothes, and people also mixed pig pancreas and lard with natural mule to make blocks, said.

pancreas". In the early days, soap was a luxury, until 1791, when the French chemist Lublan succeeded in making caustic soda cheaply by electrolyzing table salt, thus ending the ancient method of producing caustic soda from plant ash. In 1823, the German chemist Chevre discovered the structure and properties of fatty acids, and soap is a type of fatty acid. At the end of the 19th century, the soap-making industry was transformed from a handicraft workshop to an industrial production.

The reason why soap can be decontaminated is because it has a special molecular structure, one end of the molecule is hydrophilic, and the other end is lipophilic, at the interface between water and oil, soap emulsifies the oil and makes the oil dissolve in soapy water; At the water-air interface, soap encloses the molecules of the air to form soap foam. The dirt, which was originally insoluble in water, can no longer adhere to the surface of the garment due to the action of soap, and dissolves in the soap foam, and is finally washed off completely.

In the 18th century, the French used salt and charcoal to make "artificial soda" instead of the traditional lye juice extracted from ashes. In the 19th century, the Germans invented the use of electricity to decompose salt water to make sodium hydroxide; Since then, the popularity of caustic soda has transformed soap from a commodity that only the royal nobility could afford to buy into a daily commodity for the common people.

Prior to this, soap was made by experienced craftsmen. It is prepared by using the ratio of fat to lye juice, and because there is no information to refer to, it is often retried because it cannot be coagulated.

It is worth mentioning that in the United States during the pioneer period, immigrants would choose a day when the weather was warm in early spring and gather the whole village to make soap.

The material of soap** is to extract astringent juice from oak, beech and other woods as alkali juice**, and if it is not enough, add it from the ashes of the stove. With lye juice, the oil was obtained from animal fats or vegetable oils for cooking, but once the oil and water were separated, they had to start all over again, and it was not until the 19th century that companies invested in the production of soap.

In ancient times, there was no soap, and in the past, it was used to use soap horn, which was picked from the tree and directly used or ground into powder. Soap is estimated to have only existed in the eighteenth and nineteenth centuries.

In our lives, soap is indispensable for a day.

Wash your face with soap, take a bath with soap, and wash with laundry soap. Wash your face every day, and wash and change your clothes frequently. Clothes that have been worn for a long time will emit a sour smell due to dust, oil and sweat.

Oil-stained clothing is a breeding ground for bacteria. Dirt can also corrode and destroy the fibers of the fabric, and only regular washing can make the clothes last longer. In ancient times, people folded their clothes on the bluestone slabs by the river, and repeatedly beat them with wooden sticks.

1. The world's first piece of soap was made by a royal chef who was inadvertently found when cooking, it seems that life can always bring us some small surprises, soap is a very common thing, everyone has it at home, we have to use it every day, soap can remove stains well, and at the same time has a sterilization effect, with soap we live a lot easier, we sometimes eat or cook, always get greasy hands, if you just wash with water, No matter how you wash it, it will feel sticky and greasy, but it will be clean with soap.

2. The country of ancient Egypt no longer exists, but this mysterious ancient country still leaves me a lot of wealth, soap is one of them, once upon a time there was an ancient Egyptian imperial chef, in a cooking Tan Yuan accidentally knocked over the oil basin, this oil basin happened to be sprinkled on the charcoal ash, he was afraid that the king would know and punish him, so he picked up the sticky grease charcoal ash with his hand and threw it into the trash, and then he went to wash his hands, and in the process of washing his hands he found that the charcoal ash was foaming, And the grease on his hands was also washed clean.

3. Although this was an accident, but it made him a big discovery, so he thought of using charcoal ash and oil to make soap, so the world's first soap was produced, and then with the continuous development of society, the appearance of soap has changed a lot, with a variety of fragrances, all kinds of shapes, it is really beautiful and smelly, in addition to removing oil, soap can also kill germs, which is also very good for our health, with soap, we can reduce the probability of being infected with germs.

It goes back more than 5,000 years. In ancient Egypt, a cook who cooked for the king accidentally knocked over a pot of oil in a charcoal fire, and the charcoal ash poured on it hurt him. When he quickly washed his hands, he found that his hands were much cleaner than usual.

He grabbed some charcoal ash and told the other cooks to wash their hands, and the effect was the same. When the king learned of this, instead of blaming the cook for his recklessness, he had it copied for washing his hands, which was the prototype of soap.

In 70 A.D., Pliny, a scholar of the Roman Empire, succeeded in making block soap from mutton fat and plant ash for the first time. Later, this achievement reached England, and Queen Elizabeth I ordered the construction of a factory to produce soap from boiled mutton fat, caustic soda and other raw materials. But the cost of soap was high at the time, and only a very small number of people could afford it.

It was not until the French chemist Lublan first produced caustic soda by electrolysis of table salt that the cost of soap was greatly reduced. Since then, soap has gradually entered people's lives.