As the name suggests, a carton sealing machine seals the seams of cardboard boxes.
Users might ask, how do carton sealing machines actually seal boxes?
This is the key to the operation of a carton sealing machine. Many users know that carton sealing machines use tape to seal boxes. However, this is just one method. Below, we’ll share how carton sealing machines seal boxes.
- Tape Sealing
Tape sealing is the most common sealing method. This type of sealing machine can be divided into two types: straight-line sealing machines and corner sealing machines.
- Adhesive Bonding
This bonding method may not be familiar to many customers. Its principle is similar to the adhesives we use daily, but there are two types of adhesives used on carton sealing machines: cold-applied adhesives and hot-melt adhesives.
- Cold-applied adhesives include dextrin or vinyl resin adhesives. They cure by evaporating moisture, generally requiring 20-30 seconds. Additionally, a pressing conveyor is needed on the carton sealing machine to keep the carton pressed down until the adhesive cures.
- Hot melt adhesives include ethylene ester, ethylene acetate compositions, polybutadiene, polyethylene, polypropylene, polyester, etc. They cure by cooling, and the curing and pressing time is only a few seconds.