PUR Hot Melt Adhesive (Polyurethane Reactive) was first introduced at the Drupa Exhibition in 1988. The application of PUR adhesive in the graphic printing industry began around 2010, but due to PUR plastic equipment is expensive, ranging from hundreds of thousands to hundreds of thousands, and the input cost is high. Therefore, users are mainly concentrated in some large-scale graphic printing shops, and the penetration rate is low.
In 2012, our company invested more than 200,000 to introduce a plastic-loading machine, but the use situation is not satisfactory. The use of PUR plastic-packing machine is cumbersome, and our company needs to order PUR plastics, usually less than 10 orders. The time is not fixed. Every time you turn the machine on and off, you need to clean and maintain it. The company often has a lot of troubles for binding one or two books. If the glue is uneven, the whole book will be scrapped. The waiting time of 15 hours is often The customer is discouraged.
During more than three years of use, I have been thinking about finding a PUR solution that is easy to use, affordable, and effective. After repeated arguments with college and chemical industry friends, through many experiments and continuous summarization, we finally developed a liquid PUR adhesive in October 2015, summed up a set of feasible PUR innovative solutions, and took the lead in me. The company put into trial use and started to promote it in the national graphic fast printing shop in January 2016. By September 2016, nearly 300 graphic fast printing shops in China had witnessed and benefited.
Ask about the advantages of PUR's innovative solutions
Very low investment costs
The process is referred to as “no equipment PUR processâ€, and the hardware investment is very small. It only needs to clamp the tool. In theory, no matter what method you use to clamp it - the flattening machine, the clamping tool we have, the binding machine? ? It can be called "PUR binding process that everyone can use 180 ° leveling".
No heating, no electricity, no place.
The operation is extremely simple, and anyone can just press the video to get started.
Delivery time is short, delivery is as fast as 1 hour, far less than the 15-hour delivery time of the PUR plastic machine.
No milling cutters are more beautiful. For non-copper matte paper, the process does not need to be toothed and the seams are very beautiful.
It is better to spread the flattening effect.
Second, the innovative process can solve some special problems.
The PUR innovative solution also solves the common problems of graphic fast printing shops and harvests unexpected results:
Extra-thick book: Book glue machine larger than 6cm thick can't do it, and this PUR innovative solution is completely unaffected. Some users have booked books that are 50cm thick.
Ultra-high weight paper: The thicker the paper, the better the PUR binding effect, and this PUR innovative solution is no exception;
Large format: the width of the plastic machine is up to 450mm, no matter how large or wide the PUR plastic processing can handle;
Special materials: PVC, PET, double-sided coated paper, plastic, leather and a series of special materials can be perfectly solved.
Three questions about the comparison of several 180° leveling and binding methods
The 180° leveling method is available in PUR, lock line and counterweight. Lock line: only suitable for thin paper, if the paper is too thick and binding effect, it is not beautiful; if the lock line is not perfect, it is difficult to achieve the real flattening effect, and most of the graphic fast print shops are not equipped with a lock machine. External processing, small amount is very troublesome. Confrontation: The process is complicated, too many pages cause the book to be too thick and too heavy. Due to the limitation of the format, it is not possible to install a large book, and the cost of use is high. Innovative PUR process: The disadvantages of the above two binding processes are well overcome, and the thicker the paper binding effect, the better.
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