GUANGZHOU INTERNET WOOD GLUE MANUFACTURER CO. LTD.
Portable edge banding machine detailed description First of all, it can be directly applied to the plate type straight line and curved irregular frame edge sealing operation. When the portable wood edge banding machine is installed with the fixing bracket accessory, its use mode is similar to the traditional curved line manual edge banding machine. Portable edge banding machine is suitable for all kinds of different Material edge banding: such as melamine (impregnated) paper, veneer, plastic...
1. The book is very smooth According to the recommended brushing thickness, the thickness of the book block brush is about 0.025cm. At this time, the pur adhesive layer is much softer than the eva hot melt adhesive. Therefore, the book is opened very flatly, and the book does not have to be pressed by hand when reading, and the leveling of the book is improved. The reader's reading comfort. Therefore, pur is favored by some large companies. For example, Microsoft and Texas Instruments use pur...
In the course of continuous improvement and development, PUR hot melt adhesives have become one of the important varieties in the binding material after printing due to its excellent adhesive strength, temperature resistance, chemical resistance, and aging resistance. Correct understanding of the history and problems of PUR hot melt adhesives is a prerequisite for better application. PUR hot melt adhesives have strong adhesion, cold and heat resistance, and have high resistance to oil...
In the bonding process, currently used adhesives are EVA adhesives, PVA adhesives, and PUR adhesives. Among them, PUR Adhesives originated in the 1980s. Due to the advantages of good readability and convenience for book reading, they have been widely praised by the market and have been increasingly used in magazines, booklets, etc. in. As a new material, PUR adhesives need to pay attention to the following matters during use. 1. Coating Thickness The thickness of PUR adhesive adhesive is...
One of the fundamental reasons for the rapid growth of EVA (ethylene-vinyl acetate) adhesives is that they have a fast solidification rate. Generally, the curing time is about 10 seconds, and the fastest is even 1 to 2 seconds. Non-toxic and non-flammable, it is an environmentally friendly product. EVA hot-melt adhesives have a wide range of applicability, such as PP (polypropylene), PE (polyethylene) and other non-polar materials, can also achieve better bonding results. The adhesive layer has...
What are the forms of VA hot melt adhesive? A: EVA hot-melt adhesives suitable for binding are generally divided into high-speed adhesives and low-speed adhesives. High-speed adhesives cure quickly and are suitable for high-speed linkage production lines. Low-speed adhesives cure at a slightly slower speed and are suitable for use in ordering machines. According to the difference of paper, it also divides the use of glue for copperplate paper and general bookprint paper, and also has the...
EVA hot melt adhesive is a kind of solid fusible polymer that does not need solvent and does not contain moisture. It is a solid at room temperature. It melts to a certain temperature and turns into a viscous liquid. The melted EVA hot melt adhesive is light brown or white. EVA hot melt adhesives consist of basic resins, tackifiers, viscosity modifiers, and antioxidants. Basic resin The basic resin of EVA hot melt adhesive is ethylene and vinyl acetate copolymerized under high temperature and...
With the progress of society, the printing industry has stepped up the process of improving product quality, shortening the production cycle, and increasing economic efficiency. It has increased technological innovation, eradicated the sources of pollution in the production process, and promoted sustainable and healthy economic development. A development goal of the printing industry. The aim of this goal is to achieve a post-print finishing coating using a hot-melt adhesive precoating film dry...
Third, the gap between domestic EVA adhesive and foreign EVA adhesive Practically speaking, domestic EVA hot melt adhesives still have a certain gap compared with foreign EVA hot melt adhesives, mainly in the following aspects: 1. The intrinsic quality is relatively poor, mainly because the content of domestic adhesive EVA resin is relatively low, and the content of auxiliary fillers such as rosin is high. Zhang Shuheng mentioned that they used the same machine (Wellenberg glue binding line)...
I. Introduction Polyurethane (PUR) adhesive refers to a type of adhesive containing urethane groups (-NHCOO-) or isocyanate groups (-NCO-) in the molecular chain. Because -NCO in its molecular chain can react with a variety of active hydrogen-containing functional groups to form interface chemical bonds, it has extremely strong adhesion to various materials, has a tough film, good impact resistance, flexibility, and peel strength High, good low temperature resistance, oil resistance and wear...
In recent years, in the printing industry, the binding quality of books and publications has become a topic of increasing concern for people. People's attention has focused on the relatively backward areas of the bookbinding industry. In book binding, there are many factors that affect the quality of binding, including equipment level, material quality, process technology and management. Among them, adhesives, as indispensable adhesive materials in book binding, play a decisive role in various...
1. The book is very flat According to the recommended thickness of the glue, the thickness of the book block is about 0.025cm. At this time, the PUR glue layer is much softer than the EVA hot melt glue, so the book is very smooth to open. You do n’t have to press the book with your hands when reading, the flatness of the book is improved The reader's reading comfort. Therefore, PUR is favored by some large companies, such as Microsoft and Texas Instruments, which use PUR hot-melt adhesive to...
The hot melt adhesive is a solid at room temperature, gradually softens when heated, and turns into a viscous liquid having a certain fluidity and penetrating power, and can produce a certain wetting affinity on the surface of the substrate, and solidifies the condensed substance after cooling. China's printing market supplies books glued hot melt adhesives, mainly EVA hot melt adhesives. The production and promotion of EVA hot-melt adhesives in China is not a long time. Because the promotion...
The adhesive used in the adhesive bonding process of the adhesive to form a book is mainly a hot-melt adhesive agent, EVA hot melt adhesive material. The correctness of the use of hot melt adhesive is one of the key to ensure the quality of glue binding. To use hot melt adhesives correctly, first of all, the adaptability of hot melt adhesives should be studied and mastered. Hot melt adhesive characteristics Hot-melt adhesives, referred to as hot melt glue, are solvent-free, fast-curing...
The hot melt adhesive is a solid at room temperature, gradually softens when heated, and turns into a viscous liquid having a certain fluidity and penetrating power, and can produce a certain wetting affinity on the surface of the substrate, and solidifies the condensed substance after cooling. China's printing market supplies books glued hot melt adhesives, mainly EVA hot melt adhesives. The production and promotion of EVA hot-melt adhesives in China is not a long time. Because the promotion...
3. Spine formation When ordinary hot melt adhesives are used to bind irregularly textured art paper book blocks, a large amount of wrinkles are generated at the grooves. Because PUR hot melt adhesives are cold glue adhesives, the working temperature is low, so the moisture of the paper at the spine is not lost. At the same time, the PUR adhesive layer has a certain degree of ductility during the drying process, allowing the paper fibers to recover. In addition, due to the small amount of PUR...
The large amount of EVA hot-melt adhesive used in bookbinding has been greatly increased due to its high production efficiency, stable quality, and moderate cost. However, it is practically impossible to practically use adhesive products that have many quality requirements at the same time. However, PUR (Poly Urethane Reactive Hot Melt glue), an alternative to EVA, which was developed several years ago, is attracting attention because of its excellent characteristics and practical production...
There are many types of wooden floors on the market, and laminate flooring just caters to the needs of most families who are pursuing cost-effective decoration. The styles are variable, the prices are close to the people, and they are durable and durable. Therefore, they are sought after by many decorators. But many first-time owners will ask, is the quality of laminate flooring reliable? Today, the editor will come to answer the doubts of these owners!Floor Compound Glue How about the quality...
Every family will install the floor during the renovation. The good floor not only makes the living environment better, but also gives people a good mood. If you want to choose a good floor, you must first understand the type of floor. Reinforced and laminate flooring are two of the more popular floorings nowadays and are also available on the market. So strengthening and laminate flooring which is better? Here it is decorated with the home network Xiaobian to understand the advantages of...
Laminate flooring is one of the most common building materials used in home renovations. For example, engineered wood flooring and reinforced flooring are often used in bedroom floor renovations. Then, what is the difference between parquet and laminate flooring ? Next, Xiao Bian uses examples from life to give you an example of the difference between engineered flooring and laminate flooring .Floor Compound Glue First, the difference between solid wood composite flooring and laminate flooring...
What is PUR PUR is a polymer compound with an urethane bond (NH-CO-O), and the molecular chain end is an isocyanate group. The basic composition of PUR is a polyhydric alcohol (polyester, polyether, etc.) with active hydrogen at the end and an addition polymer of low molecular weight diol (chain extender) and isocyanate. Glycol and isocyanate react to form rigid molecular segments, while polyol and isocyanate react to form flexible molecular segments, so PUR is a hot melt adhesive with both...
PUR (PolyUrethaneReactive) is polyurethane, which is a polymer with recurring structural unit of urethane segment formed by the reaction of isocyanate and polyol. PUR products are divided into two categories of foamed products and non-foamed products. Foamed products include soft, hard, semi-rigid PUR foam plastics; non-foamed products include coatings, adhesives, synthetic leather, elastomers and elasticity Fiber etc. PUR materials have excellent performance, a wide range of applications, and...
According to China's book printing quality standards and in order to adapt to international requirements, China has made new revisions to the paper and drafting standards for primary and secondary school textbooks. This new situation has accelerated the development of wireless glue binding. Booking has been gradually phase out iron wire. According to statistics from related departments, China produces about 7 billion books each year, and its linked form uses about 4.2 billion copies in the form...
In recent years, hot melt adhesives have developed rapidly and have a wide range of uses. In particular, EVA hot-melt adhesives have a large demand and wide application area, accounting for about 80% of the total consumption of hot-melt adhesives. The development of hot melt adhesives is quick because the hot melt adhesives are different from thermoset, solvent, and water-based adhesives in that they contain no solvent, no pollution, no heat curing, no drying process, low energy consumption,...
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