Whether in the East or the West, in ancient times, purple was a noble and expensive color. The reason is simply that purple dyes are scarce and purple is difficult to color.

The purple dyeing agent among plant dyes is generally Lithospermum, and its roots are used for dyeing. Multiple purples with different shades can be dyed, and the number of colors is rich.

But comfrey dyeing has big drawbacks... A book flashed in Wang Kang's mind, and he finally determined the method.

In 1758, a London coppersmith accidentally discovered a method of making purple dye from several lichen plants in a dyehouse.

The method discovered by this coppersmith is an ancient Greek method of making lichen dye, which is made from Mediterranean lichen and refined with urine (ammonia).

What is lichen? It is actually a type of bryophyte, and the source of the purple dye is called litmus lichen.

This kind of bryophyte can be found everywhere and is not valuable at all, but the purple purified from it is the best.

Following the method in the book, Wang Kang found lichen and added urine and other ingredients to boil it, and soon came up with a pure purple color.

Next, alum was added to brighten, which is also a critical step. The color of silk fabrics in this era was rigid or even dull. The main reason was that it had not gone through the brightening step.

Then Wang Kang found a piece of pure white colorless silk and began to dye it. With his method, the dyeing was naturally even.

The next step is very simple, just wait for it to dry. Fortunately, the sun is very bright today, and soon the purple silk appears.

Wang Kang took the purple silk he had dyed and compared it with what he was wearing. It was obvious that the purple silk clothing he was wearing was a scumbag.

Under the reflection of the sun, the purple silk emits a bright luminosity, settling and being deep. This is the noble purple.

At this moment, in the backyard of Fuyang Buzhuang, in a room designed for rest, Lin Yuyan, Xu Changlin, and shopkeeper He were sitting opposite each other.

"Deacon Xu, I didn't tell you that this Young Master Kang is really a prodigal, so much material is wasted..."! Shopkeeper He complained.

"It is very difficult for me to configure this once. There is a batch of silk that needs to be dyed soon. If the construction period is delayed, isn't it our Fuyang Cloth Factory that will suffer the loss?"

"Forget it, he still boasts that he has a better dye formula? What a big joke." Shopkeeper He said disdainfully.

"Lao He, you are also an old man from the Earl's Mansion. You can't be more careful when you speak. It's not our turn to gossip about what the young master looks like!" Deacon Xu said with a hint of anger.

"You blame me for talking too much?" Shopkeeper He snorted coldly: "If he can really prepare a better dye formula, I can call him grandpa instead of young master!"

"Oh? Who wants to call me grandpa?" Wang Kang, who was walking in the door, asked after hearing this.

"This..." The gossip behind his back was overheard, and Shopkeeper He was so embarrassed that he didn't know what to say.

"The young master has come out. I have been waiting here for a while. There are still many things to deal with in the Earl's Mansion, so let's go back first!" Xu Changlin said hurriedly.

As for the dye formula, he didn't even mention it because he was afraid of embarrassing Wang Kang.

"I wonder if Master Kang has prepared a better dye formula?" At this moment, Shopkeeper He asked.

"Shopkeeper He...you?" Xu Changlin glared. He just didn't want to mention this matter so he took it elsewhere. Which pot you pour and don't open.

I'm so short-sighted. I don't know what happened to Shopkeeper He today. He is holding on to Master Kang.

Wang Kang was also a little angry at the moment. Shopkeeper He spoke in a strange manner and did not even see him as a young master. Combined with the previous incident, Wang Kang instinctively felt that there was something wrong with this guy.

Wang Kang looked deeply at Shopkeeper He and used identity interpretation. In an instant, this person's information appeared in front of him.

He An, the shopkeeper of Fuyang Buzhuang South Street Branch, has been bribed by Dong Qian... in an attempt to find a better dye formula for him and help the Liu family open a dyeing shop and cloth store...

You really don’t know this until you see it. Once you see it, you will jump!

Although Wang Kang's expression remained unchanged, his heart was already turbulent. This shopkeeper He had actually been bribed by Dong Qian.

If he remembered correctly, Dong Qian was the eldest son of the governor Dong Yiwu, and the reason for the bribery was that the Liu family also wanted to open a cloth farm...

The amount of information here is quite large. As the shopkeeper of the branch, He An not only knows a lot about the management of Fuyang Cloth Store, but also knows the dye formula...

If this is leaked, it will really hit the Earl's Mansion a bit hard.

And more importantly, I wonder if there are still people like He An in Earl's Mansion who have been bribed?

Wang Kang's eyes moved and he quickly thought of a way to counterattack, why not just use a trick!

"Why doesn't Mr. Kang say anything?" He An asked again.

"I'm thinking about something," Wang Kang said solemnly, looking at He An.

"What's the problem?" He An asked subconsciously without knowing what was going on.

"You just said that if I really prepare a better purple dye, you will call me grandpa. Does this count?" Wang Kang asked.

"Master Kang, you..." He An's expression froze, and then he said: "Of course it counts."

How can you, a prodigal son, make a better formula? I wouldn't believe it even to death, so why would An feel disdainful? He knew that he must have offended Wang Kang today.

But he was not afraid at all. As Wang Kang knew, he had already been bribed by Dong Qian to go to the Liu family, and would become the boss of the Liu family cloth store in the future.

"Okay!" Wang Kang nodded, "Deacon Xu, you heard it, you have to bear witness!"

"Master, this..." Deacon Xu looked hard. I heard it, but the premise is that you have to take out something, but he couldn't say this.

"If you really made the formula, I can call you grandpa, but what if you don't?" He An glanced at Wang Kang and said.

"Although Mr. Kang is a noble Earl and a young master, you can't be unreasonable!" He An said angrily: "If Mr. Kang can't come up with the formula, I won't ask for anything else. As long as you, Mr. Kang, apologize to me. !”

"Shopkeeper He!" Deacon Xu said with a cold voice: "What kind of identity is the young master? Please pay attention to your attitude!"

He An paid no attention and still stared at Wang Kang.

"Wang Kang, let's go quickly..." At this time, Lin Yuyan also said, this prodigal son is really not shameful enough, so what else can he do?

If he really apologizes to Shopkeeper He in the end, his prestige will be reduced, and it will be Uncle Fuyang's face that will be lost in the end.

However, before she could finish her words, she was directly interrupted by Wang Kang. He looked at He Andan coldly and said: "Since you are so eager to call me grandpa, then I will satisfy you!"

As Wang Kang spoke, he took out the purple silk he had dyed and placed it just where the sunlight penetrated.

The purple silk was noble, deep and agile, and emitted a dazzling light. As soon as they saw it, they were attracted to it and couldn't take their eyes away...

But Wang Kang ignored the sluggish reactions of several people and said directly to He An: "What about Shopkeeper He? Are you going to call me grandpa?"
Chapter completed!