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More and more books are using EVA hot melt adhesive for binding process. Almost all of them are used in large, medium, and small processing plants across the country. There will still be an upward trend in the future. This is because using this adhesive results in fast book publishing speed, short cycle time, aesthetically pleasing books, and eliminates several processes. But often because printing factories are eager to get started and strive for more processing, they overlook the scientific nature of the environment and conditions for using hot melt adhesive, resulting in many problems during the processing. The following points are provided for users’ reference:
Effects of Temperature and Humidity in Production Workshops
EVA hot melt adhesive is a type of thermoplastic adhesive. The opening time after application is affected by indoor temperature and humidity. Generally, the indoor (i.e. workshop) temperature should be kept constant. The optimal temperature is between 15-26 ℃, and the humidity should be maintained at around 50%. However, it is understood that very few units nationwide that use hot melt adhesive can meet this requirement. Therefore, when hot melt adhesive is used in many areas, there are too many bubbles in summer, making it difficult to cure and cool down. In winter, the adhesive solidifies, the cooling time is shortened, the bonding is not firm or sticky, and the book breaks after pasting. In other regions, due to high humidity, the book behind the cover is not properly shaped and cannot be cut, etc. These phenomena are directly related to the temperature and humidity in the workshop. So the requirement is:
EVA hot melt adhesive, which is brittle in winter and prone to cracking in summer, belongs to the normal characteristics of thermoplastic materials and is not a product quality issue. It is strongly recommended to prioritize adjusting equipment temperature and production processes, and replace seasonal adhesive when the environment is extreme. At the same time, […]
Hot melt adhesive is a type of plastic polymer adhesive. Within a certain temperature range, its physical state will change with the temperature. EVA hot melt adhesive is an environmentally friendly chemical product. Sometimes, when using hot melt adhesive, there may be wire drawing after melting. Affects work efficiency and product aesthetics. So, what is […]
More and more books are using EVA hot melt adhesive for binding process. Almost all of them are used in large, medium, and small processing plants across the country. There will still be an upward trend in the future. This is because using this adhesive results in fast book publishing speed, short cycle time, aesthetically […]
More and more books are using EVA hot melt adhesive for binding process. Almost all of them are used in large, medium, and small processing plants across the country. There will still be an upward trend in the future. This is because using this adhesive results in fast book publishing speed, short cycle time, aesthetically […]
