Such banknotes give people the impression of being fake and inferior, which damages the credibility and credibility of the banknotes.
The reason why Handu uses cotton pulp to make banknote paper at all costs is to use ink for printing. In addition to the purpose of anti-counterfeiting, the most important purpose is to improve the credibility of banknotes as much as possible.
"Lead the way," Han Du waved to everyone, "People often say that the Three Stooges are better than Zhuge Liang. Let's work together today to see if we can solve this ink problem."
Hu Xing immediately agreed and took Han Du and Xiong Shi to the place where the ink was mixed.
Pointing to the ink prepared in the copper basin, Chao Handu said: "Sir, we have never made ink. This is made according to the method you said, mixing tung ink ash and tung oil. "
When Han Du saw it, he started directly, picked up the mixing stick in the copper basin and picked it. I found that the color of this ink is very good. If I just point it on the straw paper, it will be completely black. There is no ink that will soak into the paper. However, this ink is very light, like ink, and has the same color as Han Du remembered. There is something different about the sticky ink.
Han Du was not sure whether the ink looked like this, so he asked, "What? Can't this ink be used?"
Han Du raised his eyes and looked at Hu Xing.
Hu Xing immediately replied: "Sir, this ink is indeed different from the previous ink. It can not soak in water. But it is not easy to dry. I tried it with a seal and found that this ink dries very slowly."
Han Du looked at the table in front of him, which was littered with straw paper. He picked up one and looked at it carefully.
I found that the printing effect of this ink is indeed good. Even if it is inferior paper such as straw paper, the ink is printed on it and there is no dip-staining phenomenon. If it is printed on banknote paper by then, it will definitely be able to have clear and organized lines.
But this is not quick drying, which is a problem.
It cannot dry quickly, which means that the small printed lines are easily mixed with each other and become blurred.
Han Du picked up the ink in the copper basin and frowned and said: "This is too thin, like oil, so I can't pick it up at all." Han Du felt that this thing was very different from what he remembered, so he still needed to add something to it. That's right?
"Did you add anything to it?"
Hu Xing immediately replied: "Sir, it's not like we haven't thought about it. We also added ink ash, but the printing was worse." After that, he pointed to another copper basin for Han Du to see.
Han Du looked at the ink in the copper basin. It was no longer ink, just like ink pad. Han Du didn't know what to say.
In Han Du's memory, when the dollar bills were minted in the movie, it seemed that ink was not added.
Han Du remembered it, his eyes lit up, and he looked up at Hu Xing, "Do you remember that I said before that the ashes of cattle and sheep should be added to this ink?"
Hu Xing's eyes were dazed and he looked at Han Du motionlessly.
When Han Du saw him like this, he knew that Hu Xing didn't know about it. He remembered that he had given instructions to Mr. Huang, but Han Du didn't know why Mr. Huang had not given instructions to Hu Xing.
This kind of thing seems normal to Han Du. After all, it is a message between people. People are not machines, let alone computers. It does not mean that if Han Du gives an order here, the people below will execute it 100%.
This is a dream.
"Then you can add some cattle and sheep ashes here and try again." Han Du had no choice but to give the order again.
When Hu Xing heard this, he looked troubled and said, "Sir, these sheep bones are easy to find, but these cow bones..."
oh! By the way, Han Du just remembered. In ancient times, cows could not be slaughtered at will, and it was not easy to find cow bones.
"Then just do whatever you want. Try your best to find it. If you really can't find it, just forget it. You can also use bones from other chickens, ducks, goose, and fish."
Finally, Han Du did not forget to tell Hu Xing, "But no matter what kind of ashes you use, every time you try, you must carefully check which type or types of ashes are added, and the amount of each type." Record everything for me. Including the order of adding and the length of stirring, do you know?"
"I obey, little one."
In the palace of Princess Anqing.
Princess Anqing was leaning on the flower bed, sitting on a chair, holding the Analects borrowed from Queen Ma in her hand, and pretending to read through it. The sun shines on her body, reflecting the brilliance of the flowers around her, creating an astonishing picture that reveals the intellectual beauty of women.
She had been reading like this for several days.
"It should be almost done." Princess Anqing murmured to herself, and couldn't help but squeeze her sore and stiff neck with her hands.
The pretense these past few days should be able to hide it from everyone's eyes. Didn't you see Yiyi waiting beside her, didn't you realize that she was pretending to read a book?
Closing the book in his hand, An Qing came to the study room and sent Yiyi out with an excuse to have some snacks.
She wrote in advance and started to reply to Han Du according to the method Han Du taught her.
Princess Anqing is smart and clever. Although Han Du's method is simple and easy to understand, it still requires the use of Arabic numerals to write. Princess Anqing only took one look and matched the Arabic numerals with the Chinese characters one, two, three and four one by one. It can be said that she has a photographic memory.
An Qing's reply didn't contain much content. He just wanted to tell Han Du that he had received his letter and no one else had discovered it. She had completely learned how to write secret letters and burned all the letters.
When Yiyi came back, she happened to see Princess Anqing folding the letter with the numbers written on it.
"Yiyi, you make one more trip. Go to the East Palace and give this to the Crown Prince. Remember, you must hand it over to the Crown Prince with your own hands."
Yiyi took the letter, rolled her eyes, and asked curiously: "Princess, what is this? Isn't it a private letter you wrote to Mr. Han?"
When Princess Anqing heard this, she flipped her fingers and a brain popped into Yiyi's forehead.
She screamed in surprise.
"I want you to talk nonsense and think about all this all day long, why don't you go quickly?" Princess Anqing said with a smile.
Yiyi curled her lips in pain, turned around and went out angrily.
As soon as she left the palace, the angry expression on Yiyi's face disappeared instantly, and her eyes flashed with strange eyes.
"Humph, you're still beating me. If you don't tell me, I won't know?" After muttering to herself, Yiyi took out the letter and opened it without hesitation.
At first sight, a shocked expression appeared on Yiyi's face.
"What the hell are these talismans?"
No wonder the princess asked herself to deliver the message without any precautions against herself. She has been prepared for feelings for a long time!