Hot-melt adhesive sealing is the use of a hot melt machine to melt the hot melt into a liquid, which is then sent to the surface of the carton through the throat of the hot melt machine and the spray gun. After the hot melt is cooled, the adhesive is completed. It can meet the requirements of carton sealing, and overcome the defects of the traditional carton sealing form.
As a new type of carton and carton packaging sealing, hot melt adhesive sealing has partially replaced traditional strapping and tape packaging, carton packaging for various food products, and cartons for wine and dairy products. On the packaging. Due to the advantages of good package quality, attractive appearance and low cost, the application of hot melt adhesive sealing will become more and more extensive.
Beautiful appearance
Nowadays, merchants require packaging to convey products and at the same time, they can also convey product and corporate image through packaging design. Therefore, the fewer factors that hinder appearance, the better. Adhesive tape often obscures images and interferes with the transfer of packaging information. Hot melt adhesives are glued between flaps to provide more room for display.
Lower cost
The use of hot melt adhesive sealing speed, the entire bonding process only takes 1 to 3 seconds to complete, suitable for mass production, low energy consumption, low cost.
Good packaging quality
Transport cartons must be able to withstand temperature and humidity changes and rough handling, but it is difficult to meet this requirement with adhesive tape because of poor adhesive strength, low tensile strength, and poor adhesion to coated or oily paperboard.
The hot melt adhesive has good binding force with the wet product, strong penetration force, physical and chemical bonding effect between the corrugated paper and the linerboard, and the integrated strength of the bonded carton is enhanced, and the carton is not easy to be deformed and cracked. In addition, the hot melt adhesive coating system can apply pressure on key parts of various shapes, such as folding lids in cartons.
Hot melt adhesive sealing advantages
Hot-melt adhesives also provide good anti-theft protection. As the adhesive penetrates into the corrugated medium, any attempt to open the carton tears the fibers. The tape can be cut with a knife, and the contents are removed and sealed again unconsciously.
