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Both new and existing users of hot melt packaging adhesive need to consider many factors when solving problems on the production line. The problem usually occurs in one of the following three aspects: equipment, adhesive, or environment. Any one or combination of these three variables could be the root cause of the problem.
Some common items to consider are:
Equipment:What are the equipment settings – applicator temperature, solenoid valve pressure, applicator position, and nozzle closure? The production line speed can be adjusted according to the packaging. It is important to check to ensure that the device settings are optimal for each application. If the substrate is too far from the nozzle tip, the adhesive may cool before being applied to the shell or cardboard box, causing it to accumulate due to wire drawing and other issues. In addition, if the temperature is too low, the viscosity of the packaging hot melt adhesive will increase the impact cutting of the nozzle and increase the drawing or stacking.
Environment: How is the production area set up and is there excessive airflow in the area? Two common issues are air circulation – fan or; HVAC – Refers directly to the cooler ambient air temperature in the packaging area and factory. Both will reduce the drying time of the adhesive and lead to wire drawing. Checking the airflow and production area temperature to ensure that there is not too much direct targeting towards specific application points can help speed up the setup time.
Adhesive:What are the properties of adhesive – viscosity and temperature?? Packaging hot melt adhesiveFormulated for different purposes..
Direct answer: EVA hot melt adhesive granules are used for book and magazine packaging, and the glue pot is generally set at 160-180 ℃; The packaging and sealing scenarios are mostly between 150-170 ℃; The recommended construction temperature provided by the rubber particle manufacturer shall prevail, and the fluctuation should not exceed 10 ℃. The […]
The importance of product packaging is twofold: it helps maintain the safety and reliability of the contents and provides consumers with attractive products. The packaging process is one of the most important stages in product manufacturing and distribution. With decades of experience as a packaging hot melt adhesive manufacturer, Sunlife Hot Melt Adhesive is delighted […]
If, like many manufacturers, hot melt adhesive on the packaging line may encounter problems, resulting in slower packaging speed, increased costs, and potential product damage or loss. Let’s take a look at the common hot melt adhesive problems that manufacturers face today and explore possible solutions. Problem 1: UsingHot melt adhesiveToo little If your packaging […]
The root cause of UV ink printing surface not sticking to hot melt adhesive isThe surface energy of the cured UV ink layer is extremely low (usually below 34 dynes), and the adhesive cannot wet and spreadIt can only stop on the surface to form a “false adhesion”, and when subjected to a slight force, […]
