In recent years, more and more industries have started to use hot-melt adhesives. Why are hot-melt adhesives and hot-melt adhesive machines so popular? The reason is actually quite simple. Hot-melt adhesives are made from resin. They are benzene-free, odorless, can withstand high and low temperatures, have high viscosity, are inexpensive, and meet international environmental protection standards. Now that the state is vigorously implementing environmental protection policies, this has promoted the application of hot-melt adhesives and hot-melt adhesive machines.
There are many common daily necessities in our lives that can be bonded using environmentally friendly hot-melt adhesives. And hot-melt adhesives must be used in conjunction with hot-melt adhesive machines. For example, the attachment of decorative painting canvases to frames, the bonding of wet wipe plastic lids to PP packaging bags, the spraying of spring sponges in mattresses, the packaging and sealing of food boxes, gift boxes, and wine boxes, the attachment of the mirror surface to the mirror body of makeup mirrors, the bonding of automotive sound-absorbing cotton, car seats, and automotive interior parts, as well as the bonding of paper bags (such as courier bags, file bags, handbags, tote bags, etc.). As people's living standards improve, consumers are paying more and more attention to the impact on the environment and have higher and higher requirements for the living environment. Therefore, some manufacturers have chosen environmentally friendly hot-melt adhesives as adhesives and used environmentally friendly hot-melt adhesive machines as spraying tools.
The spraying technology of hot-melt adhesive machines mainly uses high temperature to melt solid hot-melt adhesives into liquid. Through pressure devices and program control systems, the liquid glue is automatically sprayed onto the substrate through hot-melt adhesive tubes and hot-melt adhesive guns. A hot-melt adhesive machine is a mechanical device that integrates heating control, pressure devices, and liquid transportation. Its gluing methods include dispensing, spraying, coating, gluing, and scraping. During the entire spraying process, the hot-melt adhesive machine, hot-melt adhesive tubes, and hot-melt adhesive guns are all in a high-temperature state, and long-term high-temperature operation imposes high requirements on the performance of the equipment. Hot-melt adhesive machines can be classified into manual, semi-automatic, those that can be used for fully automatic gluing in assembly lines, those that can be used for automatic dispensing with robotic arms, and those that can be used for automatic spraying with automated equipment. Manufacturers can choose the corresponding type of hot-melt adhesive machine according to the characteristics of their own production. For some small enterprises, it is generally recommended to choose a manual hot-melt adhesive machine for spraying as it offers better cost performance.