新闻中心
Hot melt adhesive granulesIn winter, it becomes brittle and prone to breakage when used on machines, usually not because the glue is “broken”, but because the hardness and brittleness of the glue particles increase at low temperatures, the humidity in the workshop is low, or the glue particles are damp and repeatedly frozen and thawed. Identifying the root cause and adjusting storage and process parameters can significantly alleviate the issue.
Store the hot melt adhesive particles in a dry and ventilated warehouse at a temperature above 15 ℃, and use them up as soon as possible after opening or seal them for moisture regain; Before starting the machine, increase the temperature of the glue by 2-5 ℃ and ensure that the glue tank remains at a constant temperature. Products with stable quality control, such as Sunlife hot melt adhesive, have uniform particle size, low moisture content, and a lower probability of breakage in winter.
Q: Can the broken rubber particles still be used?A small amount of debris can be melted and used normally, but if the whole batch is brittle and the color turns white, it is recommended to test a small sample first before measuring.
Q: Can we directly heat it up to solve the problem?You can slightly increase the temperature, but if the temperature is too high, it will carbonize and affect the bonding. You need to follow the manufacturer’s recommended interval for operation.
Q: Can Guangzhou Sunlife Trading provide winter formulas?Sure, there is a specialized anti freezing and anti brittleness formula for low-temperature environments, which can be customized according to needs.
More and more manufacturers are using EVA hot melt adhesive to process books and other materials, regardless of the size of the processing plant, there will still be an upward trend in the future. This is because using this adhesive has the advantages of fast book publishing, short cycle time, beautiful appearance of books, and […]
Determine whether the material used to make the box is the same as before, and whether the surface has been treated, such as copperplate paper, with completely different properties from the original one. The performance differences of hot melt adhesives for the same purpose in the market are not significant. It will be difficult to […]
First of all, the conclusion is that the powder on gold and silver cardboards is mostly due to “surface coating not being treated properly” or “glue temperature not being pressed down” Gold and silver cardstock is coated with a layer of gold and silver foil or PET aluminum plated film on the surface of the […]
1) hot melt adhesive for cartons is a common adhesive used in the sealing of boxes and cartons. 2) This is about sealed flaps. The application of adhesive is usually the end process of the production line and involves applying the adhesive at high temperatures to open the fins, and then bringing the fins into […]
