Among these viscous liquids, there was the soap Li Zhi wanted. However, the soap was still mixed with other things and dissolved in the water. They had to be separated by salting out. Li Zhi poured the soda ash powder little by little.
Add it to the viscous liquid to salt out, heat and stir, and the sodium ions in the soda ash will force the soap to separate from the water. After heating and stirring for half a quarter of an hour, and letting it sit for a while, the soap Li Zhi wanted gathered on top of the solution.
However, such a product is still not pure enough, and there are still impurities dissolved in it. Li Zhi thought for a while, and then performed a heating and alkali precipitation treatment, and finally obtained soap with a relatively high purity.
After the alkali analysis is completed, a thick layer of yellow translucent solid floats on top of the solution, which is the high-purity soap Li Zhi wants.
Li Zhi was in a good mood after successfully getting the soap he wanted. At this time, the temperature of the soap was relatively high and it was still in a semi-solidified state. Li Zhi used a spatula to take out this layer of soap and put it in a wooden box and squeezed it into
Square. Then pour it out and put it on the kitchen floor to dry in the shade.
An hour later, the soap was all dry and turned dark yellow. Li Zhi took a piece and rubbed it in the water. Sure enough, Li Zhi rubbed the soap into a lot of foam. Li Zhi dragged the linen cloth on the ground repeatedly.
If it gets dirty, rub it with the soap and wash it off. Sure enough, the dirt on the linen cloth is completely washed away.
Li Zhi's soap making was successful! Li Zhi brought soap that had never appeared in the late Ming Dynasty to this world.
These soaps are what Li Zhi relied on to change the fate of the Li family! Looking at his products, Li Zhi couldn't help but be a little proud, and even had the ambition to use technology to change the world.
After succeeding with one blow, Li Zhi kept up his efforts and made a second pot of soap. He cut the pressed soap with a knife and cut it into small strips. When the sun set and the smoke from each house curled up, Li Zhi
Zhi got five hundred small bars of soap.
After a busy afternoon, Li Zhi felt a little tired and sat on the ground leaning against the stove.
Li Zhi was resting when his younger brother Li Xing walked in.
It was already getting late, and Li Xing estimated that no more customers would come, so he closed the shop and walked to the kitchen to cook. As soon as he walked into the kitchen, he saw pots and pans scattered on the floor, as well as five things on the floor.
Hundreds of small bars of soap. Li Xing opened his glasses wide and asked Li Zhi, who was sitting on the edge of the stove: "What are you doing?"
Li Zhi looked at Li Xing and said slowly: "You know saponin, right?"
Li Xing nodded and said, "I know, rich people use it to wash themselves."
Knowing what saponin is, it's easy to explain. Li Zhi smiled and pointed to the small soap on the ground and said, "This can also be used to wash clothes and body. It's better than saponin!"
Li Xing didn't believe what Li Zhi said. He didn't know what Li Zhi meant. He stood at the door of the kitchen and looked at Li Zhi hesitantly.
Li Zhi sat up from the ground, dragged the linen cloth on the ground to make it dirty, stepped on it a few times, and then washed the linen cloth with soap and water in front of Li Xing. After a while, Li Zhi finished washing the linen cloth.
When it was wrung out, the stains on the linen had been completely washed away.
Li Xing looked at Li Zhi's performance with a surprised look on his face. Li Xing didn't expect that the soap had such a strong decontamination ability, so he looked at Li Zhi in disbelief. He took the piece of linen cloth from his brother's hand, put it on the ground and stepped on it
, and then put it into water and scrubbed it. After scrubbing for a while, the stains were still black. Obviously, these stains cannot be cleaned with water alone.
Li Xing wiped the stains with soap and then scrubbed. Sure enough, with soap, Li Xing easily washed away all the stains this time.
Li Xing opened his mouth in surprise. He didn't expect that there was such a magical thing in the world that could wash away dirty things so easily.
You must know that in the Ming Dynasty, washing dirty clothes was the most laborious physical work. If they wanted to wash the clothes clean, women would go to the river and beat the clothes repeatedly with wooden sticks to wash away the dirty things. Such beating not only
It's laborious, and during the beating process, the new clothes are quickly damaged by the old ones.
But with these soaps, things are completely different. Now you only need to apply some soap to easily remove stains. It is labor-saving and economical.
This is definitely a revolutionary invention.
Although the facts were right in front of him, Li Xing still didn't believe it. He looked at Li Zhi in shock.
"How did you do this?"
"An old Taoist priest taught me!"
"Then why did the old Taoist priest teach you?"
Li Zhi smiled and replied lightly: "This is the secret."
The Li family is in business, and Li Xing is also very business-savvy. After trying it out, Li Xing immediately realized the huge business opportunities in this soap. He looked at the soap strips on the ground and asked, "How do you do this?"
Is it for sale?”
Li Zhi smiled and said, "No, this is a gift!"
"Gift?"
"By the way, this is a gift for those housewives. When they know how useful this soap is, they will come to our store and buy more! We give away gifts, and business will be booming in the future."
"Is that why you made it so small?"
Li Zhi stood up and praised Li Xing: "My brother is so smart!"
Li Xing looked at Li Zhi in shock, wondering how his stupid brother became so shrewd.
Seeing that Li Zhi had made such a powerful thing, Li Xing's attitude toward Li Zhi changed drastically, and he began to listen to Li Zhi's instructions with suspicion. At dawn the next day, Li Xing followed Li Zhi and presented small gifts at the door of his shop.
Bar of soap.
Li Zhi positioned the target customer group at women who are well-dressed. If these soaps are given to men, the men may find them of no use and may throw them away after a while. If they are given to women from wealthy families, the families of these wealthy women will
They all have servants, so they don’t need to wash their own clothes, and they probably don’t care enough to throw away the soap. And if you are a woman from an extremely poor family, even if you need soap, you can’t afford it.
Only well-dressed women from middle-class families, who need to wash their clothes by hand and can afford soap, can give full play to the value of Li Zhi's gift soap.
The yard of Li Zhi's house is next to Dongcheng Heng Street, and there is a lot of traffic in front of the store. Li Zhi can carefully select customers.
As soon as he opened the store door, Li Zhi saw two well-dressed women walking towards them. Li Zhi greeted them and presented them with his own soap.
"Stay here, sisters-in-law. This pleated skirt of yours is so beautiful, but it won't look good if it gets dirty! Listen to me, we have a new high-grade soap in our store, which is specially used for washing clothes and body. The price is
It is very cheap, and the effect is much better than that of soap locust. Just rub it with some water and rub it, and the dirt on your clothes will be gone. It is also more effective than soap locust when used for bathing. Do you want to take a look?
"
"Is there such a thing?"
"How come I've never heard of this thing called soap?"
"This is a new product that has just arrived in the shop. This is the first time someone sells this in the whole Tianjin Acropolis. Of course you have never heard of it. It doesn't matter. I will give you a sample for free. You can go back and try it out to feel the effect of this soap.
Effect."
"Okay then, give us a piece!"
Li Zhi handed the soap to the two women and said with a smile:
"The two sisters-in-law each have one piece, take it. This is a gift. The official product is twenty-five times larger than this, and the price is only twenty cents, which is absolutely fair. If the two sisters-in-law feel good after trying it, they must come to the store to buy it.
Official product."
In the Ming Dynasty, few people used gifts to promote their products. It was the first time for the two women to get free products. They were so fresh that they happily said: "If it works well, we will buy it."
Li Zhi said happily: "I've been waiting for you to come!"
