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hot melt adhesive advantages
in industrial applications, the adhesive force of hot melt adhesive particles has multiple advantages compared with solvent-based adhesives.
They include:
Reduced or eliminated volatile organic compounds
The drying or curing step has been cancelled
Hot melt adhesive has a long shelf life and can usually be handled without special preventive measures.
Hot melt adhesive does not lose its thickness during the curing process. Solvent-based adhesives may lose up to 50-70% of their layer thickness during the drying process.
Some challenges of hot melt adhesives include:
The thermal load of the substrate, restricting the use of substrates that are not sensitive to higher temperatures
It loses its adhesive strength at higher temperatures until the adhesive is completely melted.
Some hot melt adhesives may not be resistant to chemical erosion and weathering.
However, the above-mentioned challenges can be reduced by using reactive adhesives, which undergo further curing after curing, such as through moisture (for example, reactive polyurethane and silicone), or through ultraviolet radiation curing.
The popular applications of hot melt adhesives include but are not limited to:
Sealing of corrugated boxes and cardboard boxes in the packaging industry
Spine gluing in the binding industry
Profile packaging, product assembly and lamination applications in the woodworking industry
Many electronic device manufacturers may also use hot melt adhesives to fix parts and wires. Or components for fixing, insulating and protecting equipment.
The automatic sealing machine uses hot melt adhesive particles to seal the box, and the process can be summarized as six steps: cleaning and inspection → preheating with adhesive → setting temperature → adjusting the amount of adhesive sprayed → adjusting the sealing test → mass production. Novices can follow the instructions and get started […]
Hot melt adhesive granulesHow to read the test report? Legitimate hot melt adhesive particles should come with a testing report when leaving the factory. Newcomers are often discouraged by a bunch of indicators, but in fact, by grasping a few key items, one can judge whether it is good or bad. Below is a comparison […]
Tannic acid (also known as tannic acid) is a natural polyphenolic compound extracted from plants such as gallnuts. Its core value lies in high purity, strong stability, and low impurities. It is widely used in food clarification, pharmaceutical antibacterial, industrial rust removal, mineral processing and purification, and other fields. The purity of tannic acid on […]
In book and periodical binding, for EVA hot melt adhesives, they are generally classified into high-speed adhesives and low-speed adhesives based on different curing times. The curing speed of high-speed glue is slightly faster, while that of low-speed glue is slightly slower. Books are classified into offset paper adhesive and coated paper adhesive based on […]
