Sweet and salty prehistoric husband and wife

Throwing away the ridiculous thoughts in his mind, Mr. Hua Yu returned to his mind, looked at the pile of cloth on the desk in front of him, and decided to make paper and pen first no matter what.

Take a clean piece of cloth and write on it with fine charcoal the materials from which the paper is made.

Without modern machinery, paper can only be made by hand. The main raw materials are hemp, bark, bamboo and straw. At present, straw has not been found, so only three kinds can be used to make it.

The production process is soaking, cooking, washing, drying, beating, fishing, squeezing, and baking.

Mr. Hua Yu is a little annoyed now. Chemistry is really his shortcoming. He doesn't have too many books on this kind of books. He has no problem with finished chemistry. The problem is how to extract these chemical products. Understand.

There is no problem in papermaking, but the current situation is that it is difficult to produce white paper. He does not know how to extract oxidative bleaching agents, such as chlorine, chlorine dioxide, hypochlorite and other chemical pulp bleaching methods.

After worrying for a while, Mr. Hua Yu immediately gave up and thought about it later when she was free. There are too many things to do at present, and there is no time to waste it.

The only way to do it is by sun drying. Even without bleach, it takes two to three months for sun drying, which greatly delays the speed of papermaking. This is also impossible.

Graphite has not been found yet, so I can't make pencils. Mr. Hua Yu is going to make charcoal pencils.

The main raw material of charcoal pencils is charcoal powder, which is produced by incomplete combustion of wood.Mr. Hua Yu is a painter, and he knows how to use charcoal pens like the palm of his hand, and he can use them smoothly.

Glancing at the watch on his left wrist, it was three o'clock in the afternoon, it was still early, Mr. Hua Yu picked up the blueprint he had just drawn and walked outside the house, opened the door, looked for the position of Fenghu, determined the target, and went to the kiln on the left Go to the furnace.

"Why are you here?" After being reminded by the people next to him, Feng Hu, who had his back turned, immediately turned around, walked a few steps and asked in front of Mr. Hua Yu.

"I need paper and pens, you can assign some people to do this." Hua Yujun raised his right hand and waved the drawings in front of Fenghu's eyes.

"Okay." Fenghu didn't know what paper and pen were, but it didn't affect him at all, as long as he followed the drawing.

"Here you are." Mr. Hua Yu circled the whitening process, planning to save most of this process, increase the speed of papermaking, and only make a small amount of white paper, and add it when manpower is enough in the future. Prioritize building tribes.

"I'll make arrangements, will you follow me or go back to the house?" Feng Hu took a quick look at the blueprint, and was accustomed to the detailed patterns on it, focusing on Mr. Hua Yu.

"I'm going back to the house." The infrastructure construction has just started, and everyone encountered many problems. Mr. Hua Yu inevitably contacted them to solve the problems. In order to prevent himself from getting sick again, he should not come out when he can be alone now.

"Wait for me for a while, I'll go find you." Feng Hu said softly.

"No, you are busy with your work, I don't need you to accompany me, I still have a lot of things to do." Hua Yu-jun hurriedly stopped.Fenghu would come to see him from time to time. It's not that he didn't understand the meaning. He was afraid that he would be bored if he stayed alone. In fact, he really thought too much. Now he is really busy, and there are many detailed drawings waiting for him to draw.

"Okay." There was a hint of reluctance in Fenghu's words.

"I'm coming back." Jun Hua Yu ignored the other party's careful thinking and resentful eyes, suppressed the smile on the corner of his mouth, turned his head and left.

Feng Hu looked at Mr. Hua Yu's back, his slender figure was blocked by the closed door, and then he looked away and went to Ban Luo to discuss.