The office is indeed very well decorated, with a row of state-of-the-art lattice desks and chairs on the outside, and a separate factory director's office separated by reddish-brown solid wood boards, with an unobstructed view of the outside world through the transparent glass under the blinds.

Zhang Heng walked into the factory director's room, hung up the new business license, sat down on the leather swivel chair, walked around twice, got up and walked out of the office, and shouted at the door: "Everyone come here." ”

Uncle Li and several co-workers wiped their hands with cotton cloths and stood neatly in front of him, their expectant eyes condensed on his face.

Zhang Heng was very satisfied with their rigorous style, and said with a smile: "Starting today, Daheng Printing Paper has started!"

The workers grinned, but no one said anything, Zhang Heng nodded and continued: "Li Rutie will be the director of the production plant in the future, responsible for production management, and his salary will rise to 500 yuan." ”

Uncle Li just wanted to speak, but Zhang Heng's stern gaze made him shut his mouth, "The monthly salary of other ordinary positions is 330, and the special positions will be given an allowance of 50 yuan, as for the job allocation, you listen to Director Li." ”

Uncle Li was in charge of the most important offset printing machine, and his salary was in his early 300s, while most of the workers' salaries were less than 300.

Zhang Heng waited quietly for a while, his eyes swept over, and everyone immediately quieted down, "I brought back lunch, and after the meeting, Director Li, you are responsible for arranging the post, and then go out to hang up the new signboard, and help me purchase some sample paper back, the paper requirements are ......"

After everyone squatted on the ground and had lunch, they immediately got busy with their own things, Zhang Heng returned to the office, found 3M's agent in Xiangjiang from the yellow pages, called over, and asked them to send some glue samples as soon as possible.

Ironsen's office is on Ka Lam Biandao, not far from Kwun Tong, and a burly and powerful salesman quickly drove a van to deliver dozens of glue samples.

According to the usual practice, Zhang Heng paid the fee, sent the salesman away, and began to test bottles and bottles.

"Little ...... Boss, I'm back. Uncle Li knocked on the door sweating profusely and came in, holding a large bundle of colored paper in his hand, "These are all sent by the original supplier, no money, and their boss said that when you are done, they will come to visit you." ”

"Well, let's put it down for now, and you go outside and have a look. Zhang Heng nodded, staring straight at the scattered pieces of paper on the ground, and after a while, he dialed Ironsen's phone again.

"Do you have any other varieties of glue, the glue I need can't coagulate right away, it's best to be semi-dry all the time...... Okay, thank you. ”

Hanging up the phone, Zhang Heng sat on the chair and became worried.

He vaguely remembered that the doctor of chemistry at 3M should have successfully developed this glue by the end of 68, but he could not find a practical direction, so 3M was not mass-produced.

It wasn't until the second half of '74 that another chemist at 3M stumbled upon the best use for the glue and brought the finished product to market in '77.

The glue that Zhang Heng is talking about is the self-adhesive invented by 3M, and the epoch-making product that uses this glue was rated as one of the 50 greatest inventions of the 20th century by Time at the beginning of the 21st century:

3M's registered trademark is the trade name Post-It, the Chinese trademark is the trade name post, and later other manufacturers imitated the name of the convenience sticker, random sticker, N times sticker and so on.

Don't underestimate a small newspaper post, its advent has facilitated office communication, changed office culture, promoted office revolution, and created greater value for countless enterprises.

In the private sphere, it also plays an important role.

In countless European and American film and television dramas in the past life, there are always yellow newspaper stickers full of reminders on the refrigerator of every family.

There are also many people who express romantic love through post-it posts that cannot be expressed in words, or leave a testimonial in a certain place as a memorial.

This self-adhesive does much more than that.

With the popularity of newspaper stickers in the late 70s, 3M launched self-adhesive label fast-printing technology in 80 years, which quickly became popular around the world, and was adopted by companies of all sizes, and even led to a major change in printing equipment.

In the 21st century, even if you buy a red Fuji apple, you will have the origin and brand on it.

The key to these two inventions is glue, and the finished product design is actually not difficult, but most people are just dark.

In the past, 3M first invented glue in the late 60s, and it took 5 or 6 years to find a suitable use for it.

Therefore, Zhang Heng was the first to think of them, if the invention is successful, at least within the validity period of the patent, they can become a steady stream of cash cows in Zhang Heng's planned chip and electronic manufacturing industry.

This is not an exaggeration, you know, in 1980, when the newspaper first began to flourish, 3M shipped as many as 4.5 billion pieces (45 million copies), with a total sales amount of more than 36 million US dollars.

That was in the early eighties, and in 1978, the country's foreign exchange reserves were only $167 million.

Moreover, in the following 30 years, with the continuous introduction of new products with various segmented needs, the newspaper sticker has always been one of the trump card products of 3M.

What about the cost?

Just the small 100 sheets of paper, plus a negligible amount of chemical glue, are produced on an assembly line.

Zhang Heng roughly estimates that even if 3M is produced in the United States, it is less than one in ten, and if it is produced in Xiangjiang, where labor and other costs are lower, and then sold to Europe and the United States, the profit margin will be higher.

"For the time being, it is impossible to reopen the stove and develop self-adhesives, so we still have to find 3M. Ironsen told Zhang Heng that 3M had no similar products, so Zhang Heng had to find 3M directly.

After calculating the jet lag, Zhang Heng had to press it down first, and went out for a walk, everyone was very busy, and he didn't bother them, and soon returned to the office and wrote and drew in his notebook.

When he got off work, Zhang Heng asked Uncle Li and them to go first, Chen Zhenning went out to buy a bento, and the two had dinner and waited stupidly in the office, until after 10 o'clock, Zhang Heng dialed the phone of the 3M headquarters in the United States.

At 3M's headquarters in St. Paul, the capital of Minnesota in the north-central United States, shortly after Dr. Spencer Silver, a doctor of chemistry, entered the lab, the head of the sales department called him and told him the good news, that he had developed the kind of "poor baba" binder three years ago, and it seemed to see a silver lining.

Poor Baba is Silver's self-deprecation, and is recognized by his colleagues, although this is a pioneering adhesive made of polymers, the effect is really pitiful, the drying time is extremely long, and the viscosity is so weak that you can't find any other use than to bond two sheets of printer paper.

Silver, who cherishes the broom, is still trying to find its industrial use, taking 15% of his free time from the company to experiment and entrusting other colleagues to help.

However, three years have passed, and there has been no improvement, and I did not expect that there would be external customers who took the initiative to find them at this time.

Excited Silver, told that the customer, a small factory in Asia, would first make small purchases and then propose improvements until the finished product met their requirements.

"Of course, I can easily do the sample dose they ask for in the lab. Silver agreed.

"However, the other party still has a request," the voice on the phone hesitated, "and the customer asked for a permanent license for the binder patent, and it was exclusive." ”

"What?" Silver's eyes widened, and he exclaimed, "Did they discover some big secret?"

"I don't know, but the Chinese should understand, they like to be exclusive and don't like to share. ”

As a scholar who is dedicated to scientific research, Silver will not bother with this kind of nosy, saying: "They should have a product that needs our adhesive with this characteristics, and we can improve our process during their trial, I think if they can agree to share their experience with 3M, we can consider licensing them, provided that 3M must retain the right to use this adhesive to improve its own products!"

"Silver, what you say is my opinion, if we reach an agreement, I will send someone to sign the list for you later, and after the CEO signs it, we can cooperate with those Chinese. The head of the sales department happily hung up the phone.

Here, Silver was also in a good mood, picking up a bottle on the table and staring, "I don't know how you want to use it, I'm really looking forward to it." ”