Pur Concept Analysis And The Latest Technology Trends
PUR technology in the end is what? Why is it such a success? This article will briefly describe the development process of PUR technology and its latest trends.
Print Network HC Perfect Binding with a new type of adhesive?? Activity of polyurethane (PUR) hot melt early in the Drupa 1988 exhibition came, when the experts claim that this is an irresistible adhesive products, is an innovation, will beyond the traditional perfect binding process, so difficult processing operations to a new level.
After ten years of development, PUR glue in the UV coated paper and high fill more and more popular applications on paper, it is ideal for those who need strength to withstand external force of the book binding, such as computer manuals, and Some may be exposed to extreme temperature conditions or temperature fluctuations in the larger field of book binding, such as Car Manuals and maps.
PUR technology in the end then what is? Why is it such a success? This article will briefly describe the development process of PUR technology and its latest trends.
What is PUR technology? PUR hot melt adhesives are mass-produced with the active terminal groups PUR top polymer, when the activity of the terminal group exposed to moist air or paper humidity reaches a certain level, the crosslinking reaction occurs. Top polymers were wet, they can penetrate into the paper very well, achieving a higher viscosity and higher paper tension.
Crosslinked, PUR film showing a high inherent strength (cohesion), it can form a very durable adhesive film. PUR film not only Print Inks and solvents is not sensitive, but also has strong durability. If you use the PUR hot melt
bound manual, can be in the ultra-cold or super hot environments. PUR Adhesive Binding books in 120 ° C environment security presence, there will be no mass loss, in addition to minus 40 degrees in an environment but also to maintain good plasticity.
Binding Equipment Despite so many advantages, but when the end of 1988, only two German companies book binding with PUR hot melt glue equipment for wireless technology. Can be sure that performance is not a problem, PUR technology has in many markets has been well verified. Hinder the development of the biggest since an obstacle to reform is the need for equipment, particularly the role of this technology react with the transformation of the system.
Such as plastic containers, used over time will be covered with thick adhesive, only to go away after cleaning. In addition, the need to reduce the temperature and pressure adhesive, operating temperature must be in optimal condition.
The first use of the previously mentioned two books bound PUR technology companies in Germany, using the DIY approach, the structure of the equipment itself was reformed.
In addition to equipment problems, the new hot melt equipment needs have also hindered the growth of PUR technology. As is the case of moisture-curing PUR adhesive systems, must be plastic to isolate and maintain absolute dry, glue the transport and therefore the application process to be very careful. This is why the form PUR always FCL transportation, and by special melting device to the application of reason. Special melting device has sealed plastic containers sealed to avoid plastic in contact with air, and to facilitate the provision of PUR in Demand Supply. As needed on-demand access to glue it to avoid the pressure of the system temperature.
PUR is a perfect process Currently in Germany, more than 150 books about bookbinding business, worldwide there are hundreds of companies have binding change from the traditional to the PUR hot melt adhesive hot melt adhesives. The new binding equipment, PUR hot melt adhesives with the latest technology combined with a binding process to ensure the smooth and complete.
PUR user is no longer confined to traditional roller coating applications, and introduced many new processes and technologies, such as the use of plastic nozzle system effectively coating the bottom of each book.
I am an expert from China Quality Dress, usually analyzes all kind of industries situation, such as home office safes , portable pulse oximeter.
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