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Raw materials, beef and suet, lard, tar, rosin

Spice, vanilla oil, retinol oil, wintergreen oil, osmanthus oil, cinnamon oil

Oil processing, pressing, filtering, cooking, saponification.

Li Ang used more than a dozen sheets of paper to write down the soap and soap making process as detailed as possible, from the selection of raw materials, to the production of production tools, to the protective equipment that workers need to use, and even waste, waste residue, and waste water. Handle it all.

The handicraft industry in Yu State is relatively developed. In Chang'an, Luoyang, Suzhou and Hangzhou, there are already workshop owners who have purchased land, placed looms, and hired workers to mass-produce fabrics.

The number of workers ranges from dozens to hundreds or thousands.

It brings a lot of tax revenue to Yu State every year. With detailed industrial drawings, it is not that difficult to switch to the production of soap and soap.

This is the benefit of being a disciple of the academy.

You don't need to appear in person to deal with the person in charge of a big firm, and you don't have to worry about your money being swallowed up, just sit and wait for the money to be collected.

Li Ang said: Furthermore, the school has mastered the violence itself and the absolute power of speech. No matter how greedy the workshop owners are in pursuit of profit, they must restrain themselves when facing the school, otherwise their patents will be revoked and their past income will be confiscated.

To a certain extent, it can protect the rights and interests of workers.”

Li Ang looked at the drawings several times, and added more instructions on how workers should protect themselves during the production process. Then he put down the pen, and after the ink on the paper was dry, he put the paper back into the drawer. When preparing to return to the school the day after tomorrow, submit it to the patent office.

The patent he intends to register this time includes not only soap and soap, but also absorbent cotton—the absorbent cotton is hygienic and clean, soaked in pure wine, and can be used as a disinfectant cotton ball. It can also be used to stop bleeding, and the market as a monthly product will definitely not be bad.

Moreover, absorbent cotton is also one of the raw materials for nitrocellulose

Soap, soap and absorbent cotton are daily necessities and fast-moving consumer goods, and the consumption rate is much faster than midwifery forceps. The profits brought are also much higher than those of public welfare midwifery forceps.

Li Ang looked up at the curious Chai Cuiqiao, and said with a smile, We will be very rich soon.

Ah, really?

Chai Cuiqiao was pleasantly surprised at first, and then said in doubt: But it's not possible to sell cotton cloth made of absorbent cotton.

One moment and another moment.

Li Ang shook his head helplessly and said: The emperor and empress have already planned to publicize the matter of midwifery forceps, and the title of gynecological master can't escape.

Simply sell the production process of absorbent cotton, which can also benefit the country and the people and improve people's livelihood.

As for the seriousness of the impact, I would like to ask the doctors of the patent office to help hide my real name.

Money is not everything, but nothing is impossible without money.

Li Ang needs a lot of money to buy special materials, conduct experiments, or feed Mosi.

'The only question is how can I buy a lot of gold and silver for a reasonable reason.

In big cities such as Chang'an and Luoyang, the use of flying tickets for large-value transactions has become quite common, and gold and silver are used less and less as currency.

A large number of acquisitions in a short period of time is sure to attract attention. '

Li Ang thought silently: 'The reason I used it before was to make surgical tools—this is still reasonable, after all, there are gold needles and silver needles in the medical field of Yu State.

For larger amounts, surgical tools are not enough.

Do you want to buy gold and silver in batches? Hide your identity and buy more times, and only buy a small amount each time,

Or create yourself a wealth-loving person who loves collecting gold and silver ingots? '

Judging from the amount Mosi needs, even if he earns hundreds of thousands of guan every day, he can still digest it.

‘Forget it, let’s wait until we get the first money. '

Li Ang shook his head. There are many ways to earn patents, that is, they can be sold to big companies permanently at a price of tens of thousands or hundreds of thousands of guan.

It is also possible to authorize a designated firm with a ten-year or twenty-year period. During these twenty years, no patent fees will be charged to the firm.

It can also be authorized to all companies that want to produce goods at a low price, and the accumulation of a little can make a lot.

The scale of operation and production of large companies far exceeds that of small and medium-sized companies. The logic of Xuegong Patent Institute is that the more products produced, the higher the patent fee. After a little calculation, large companies will agree to adopt a ten-year or twenty-year patent licensing policy. plan.

Li Ang said: This should also be the fastest way to make money—except for writing symbols.

Boom boom boom.

There was a knock on the door outside the courtyard, and Yang Yu's voice came, Risheng, the Moon Appreciation Group is about to start! Get ready to go.

So fast? Didn't you say it will be evening?

Li Ang walked to the courtyard with some surprise, opened the courtyard door, and the carriages of Yang Yu and Yong Hongzhong's family were parked outside the door.

The carriage is ready.

Yang Yu pointed to the empty carriage at the back, rubbed his palms and said excitedly: There are too many people going today, so go early to avoid crowding with others. Have you brought your tickets?

Bring it.

Li Ang asked Chai Cuiqiao to go to the study to bring the two tickets, and after closing the courtyard door, boarded the carriage and headed for the West Market.

Along the way, you can see many horse-drawn carriages also driving towards the West Market. The convoy drove through Liquanfang Street, entered the archway of the West Market, passed the building complex, and came to a theater pavilion.

In Yuchu’s big city, there were Goulan tile houses. At that time, they were temporary tile-roofed houses and shacks where actors performed operas and dramas.

As time went by, it gradually evolved into a formal stage theater, with a larger and larger floor area, more luxurious interior and exterior decoration, and special boxes for nobles to visit and stay.

arrive.

The carriage stopped in front of the largest pavilion named Luoyang Tower. Yang Yu jumped out of the carriage excitedly and called Li Ang and others to follow.

There were a lot of people queuing up outside the theater. Yang Yu should have asked his servants to wait in front. It didn't take long before he brought Li Ang and others to the entrance of the theater, and handed the four tickets to Zhou Guo's special circle wearing half-armed clothes. doorman in cap.

Mr. Yang Xiaolang from the Academy, please.

The guards with big arms and round waists are respectful and fluent in Chang'an official language, and they can hardly hear Zhou Guo's accent.

Li Ang and Chai Cuiqiao followed Yang Yu, looking left and right at the decorations inside and outside the theater.

At the entrance of the theater, there is a wooden sign called Zhaozi, which says what play is being performed today and the names of the famous actors - that is, the Jianyue Troupe.

In addition, colorful flags are hung on the wall, on which are written famous troupes that have performed in this theater in history. Equivalent to historical honor.

Just like those high-end restaurants, cool wind symbols are posted to balance the temperature. There are also light notes on the ceiling of the auditorium?

It is estimated that it is used to reduce the noise of the auditorium and maintain the atmosphere of the stage. Pretty professional.

Li Ang and Chai Cuiqiao were talking in low voices, when they suddenly heard shouts coming from the front.

Will you look at the road! I'm covered in dust, do you know how much I paid for this satin?!

A middle-aged man with a wide body and a fat body was stalking his neck, patting the dust and fruit crumbs on his brocade clothes, and at the same time scolding the servant wearing the clothes of the Jianyue Theater Troupe.

The boy kept nodding his head in apology and greeted him with a smile. Behind him stood an old woman holding a broom and dustpan with a slightly dull expression.

There was still some time before the show would start, and the staff of Jianyue Troupe and Luoyang Tower talked about everything, and they were offering tickets and apologizing, and persuaded the man in brocade clothes to go back to calm the turmoil.

At this time, Yang Yu had already found his seat, stood there and waved: Risheng, Cuiqiao, this way.

oh.

Li Ang and Chai Cuiqiao turned their heads, walked towards Yang Yu, and took their seats.

The originally congested aisle started to pass by again. The boy from the Jianyue Troupe breathed a sigh of relief, turned around and whispered to the old woman holding the broom and dustpan: Grandma, you should go back first. It's all right now.

.

The old woman in gray opened her mouth, her expression was still a bit dazed, and she walked quietly to the backstage of the theater accompanied by a servant.

The citizens of Yu country who saw this scene were not surprised. Many big theater troupes would spend money to support the old people in the previous theater troupes.

The old woman in gray was walking towards the backstage of the theater. The skin on the tip of her callused index finger cracked slowly and silently, and a drop of blood oozes out of it.

tick.

Drops of blood dripped onto the thick red carpet in the aisle, and quickly disappeared.