The Application of Hot Melt Adhesive Machine in the Sealing and Packaging Industry

As a new form of packaging and sealing for cardboard boxes, hot melt adhesive sealing has partially replaced traditional bundled packaging and tape packaging, and is applied to the packaging of various food cartons and products such as wine and dairy products. Due to the advantages of good packaging quality, beautiful appearance, and low cost, the application of hot melt adhesive sealing boxes will become increasingly widespread. So currently, this form of sealing has become a trend in the development of many product packaging boxes. The hot melt adhesive machine sealing box also creates maximum value for the majority of users.

1、 Advantages of Hot Melt Adhesive Sealing Box

Hot melt adhesive sealing is the process of using a hot melt machine to melt the hot melt adhesive into a liquid, which is then delivered to the surface of the cardboard box through the throat and spray gun of the hot melt machine. After the hot melt adhesive cools down, it completes the bonding process. It can meet the various requirements of cardboard box sealing and overcome the shortcomings of traditional cardboard box sealing forms.

2、 Good packaging quality

Transport cartons must be able to withstand temperature, humidity changes, and rough handling, but using tape is difficult to meet this requirement because of its poor adhesion strength, low tensile strength, and poor adhesion to coated or oily cardboard.

And hot melt adhesive has a good bonding force with wet materials, strong penetration, and simultaneously plays a physical and chemical bonding role between corrugated paper and lining cardboard. After bonding, the overall strength of the cardboard box is enhanced, and the cardboard box is not easy to deform and crack. In addition, the hot melt adhesive coating system can press and apply adhesive to various key parts of different shapes, such as folding covers inside cardboard boxes.

Secondly, the adhesive tape has poor low temperature resistance and is easy to open in cold climates in the north; Hot melt adhesive has excellent low temperature resistance and can withstand low temperatures of -40 ℃. Moreover, the storage period of hot melt adhesive is up to 2 years, with a small storage area and no special storage requirements; The shelf life of tape storage is only half a year, and certain storage conditions are also required, otherwise it is easy to deteriorate.

Hot melt adhesive also provides excellent anti-theft function, as any attempt to open the cardboard box will tear the fibers due to the penetration of the adhesive into the corrugated material. The tape can be cut open with a knife, and the contents can be unknowingly removed and resealed.

Nowadays, businesses require packaging to not only convey products, but also convey product and company image through packaging pattern design. Therefore, the fewer factors that hinder appearance, the better. Tape often blocks images and interferes with the transmission of packaging information; And hot melt adhesive is bonded between the folding wings, which can provide a larger display space.

3、 Low cost

The use of hot melt adhesive for box sealing is fast, and the entire bonding process can be completed in only 1-3 seconds. It is suitable for mass production, with low energy consumption and low cost. The sealing cost of standard corrugated cardboard boxes with hot melt adhesive is about 32 yuan/1000 boxes, which is the middle price of hot melt adhesive, while the middle price of tape sealing is about 120 yuan/1000 boxes.

If hot melt adhesive is used, adding adhesive during the processing will not cause a shutdown; Replacing the tape requires a shutdown. Moreover, there is no need to install partitions inside the box, and the sealing strength of the box is greater than that of the inner partition when using tape sealing, which can reduce the cost of the partition.