Strong adhesive

“Wireless nails, limited lifespan, coated paper, lock stitches, plastic glue, can only be thrown away” has always been a weird phenomenon in which we have bound conventions. We never expected anything and never expected anything. . But today, everything will change, the world has new hopes, the lock line is no longer the way to return the coated paper, and plastic nails are no longer short-lived pronouns. Twinflex 2000 solves all problems for us.

Twinflex 2000 is a new method developed by National Starch & Chemical Company and specifically designed for coated paper binding. It uses three sprays instead of the usual two spray techniques. It has the binding ability unmatched by ordinary hot melt adhesives and has been widely welcomed in the publishing industry in Germany for five months.

When using this glue nail method, the book is first subjected to a pretreatment, a pre-primary coating agent is applied, and it is responsible for roughening the coating layer on the paper, and then formally applying the adhesive primer agent. Infrared irradiation was used to dry the spine, and a new type of PUR (polyurethane) hot melt adhesive material was brushed onto the cover with a narrow coater. Finally, the book case and the book were put together.

When the book cover comes into contact with the book, the hot melt glue on the book cover reacts with the primer on the book paper to form an adhesive band. Its dry knot speed is much faster than ordinary PUR type glue, and the pulling force is up to 8 per square millimeter. Newton is only 22 newtons less than the very stringent aerospace rubber standard.

J. Ebner, Stuttgart is an established company that integrates local newspapers, broadcasting, and electronic media. It has a history of 180 years and recently used the Twinflex 2000 system. According to Reinhard Weitz, the company's young executive director, their investment in the bookbinding system has had a profound effect on the future development of the company. He said: "Originally, our competitors always joke that we are behind us. But this time they have become our customers."

As if to verify this statement, the company soon became the host of the National Starch & Chemical symposium, welcoming learning and visits from manufacturers across Europe. The UK's RR Donnelley, Martins Printing Group, and Jarrodd also participated in the meeting.

Unlike British printing companies, Ebner is not only a printing company but also one of the largest book publishing companies in Germany. Its business scope covers everything from printing and binding to sales. Twinflex 2000 (known as BiTec4X in Germany) has shown its unique advantages: The waste of plastic waste has been significantly reduced, the work efficiency has been greatly improved, and the time from nailing to packaging has also been greatly shortened. Because of its rapidity of condensation, direct book publishing after binding became possible.

If you just swish through the bookshelf, you will find that the quality of German books is different from that of Britons. They often regard books as gifts and emphasize the beauty of them. Therefore, the spine of German books is generally of a beautiful curve and a beautiful appearance. More persistent. However, the increasing color of books, the higher and higher quality requirements, and the use of coated paper as far as possible are the same issues that British and German printers face. Although the coating material can also be glued nails, but the effect has to be greatly discounted, so people often use the sewing thread instead of plastic nail binding method for three times coating the forming paper.

Now thick books, such as workbooks, etc., are increasingly using coating materials. The wood fiber content of paper is generally not more than 60%. When the book is unfolded flat, the back of the staple is often prone to chapped, causing the spine to debond, and the book paper to fall. If you use Twinflex 2000, you can completely avoid such problems, and when printing, you can directly print on the spine part without having to set aside the so-called "bleeding" position.

“In recent years, coating has brought about advances in printing, but it has caused troubles for binding.” Dawei Carter, manager of Sol Development at National Starch & Chemical, said, “Coating is our enemy, but we can The task is to turn the enemy into friends."

Because of this, based on its widely used Twinflex-R system, the company developed the Twinflex 2000, an upgrade for paperback binding.

Although Twinflex 2000 is more expensive than normal hot melts, it does not require emulsifiers and desiccants. Instead, it saves costs. Due to the use of a new type of glue dispersion system, Twinflex 2000 effectively avoids the waste of most of the sols after each nailing and saves costs.

The use of Twinflex 2000 required minor changes to the bookbinding system. The original one barrel was divided into two, one for pre-primed rolls and one for primer rolls. One of the advantages of doing so is that one more process is added to improve the adhesiveness of the glue, and the second is to save the moisture of the book paper so as to facilitate the immediate encapsulation after the glue nail, which brings great convenience to the publisher.

The books made by this method can withstand temperatures from minus 50 degrees to minus 150 degrees without worrying about spine splitting. It is the best performing rubber nail product at present.