Hot melt glue for varnish carton boxes is mainly used for packaging of ordinary corrugated boxes and water-based varnish boxes. It has the advantages of good adhesion, good fluidity, and fast curing speed.
Key Considerations for Using Hot Melt Adhesive in Corrugated Cartons
Surface Preparation: Ensure the bonding surface of the corrugated paper is clean, dry, and free from oil, dust, or loose debris to achieve optimal adhesion.
Temperature Control: Strictly maintain the adhesive within the recommended application temperature range (typically 150-180°C). Overheating can cause carbonization and degradation, while insufficient temperature leads to poor flow and weak bonds.
Even Application: Apply the adhesive evenly and in a suitable pattern (e.g., beads, spirals) to create a consistent bond line. Sufficient adhesive must be applied to penetrate the paper fibers.
Press Time: Apply adequate and immediate pressure after application to ensure good wetting and penetration before the adhesive sets. The assembly must be held in place until the adhesive solidifies.
Adhesive Selection: Choose the correct type of hot melt adhesive (e.g., EVA, APAO) based on specific requirements for setting speed, flexibility, heat resistance, and service environment.
Production Description
Product Name | Hot Melt Glue For Varnish Carton Boxes |
Application | Coated Carton Boxes Packagaing |
Appearance | Yellowish Granule , 100% solid state |
Viscosity | 1100±900cps @170°C |
Softening Point(R&B) | 110±5°C |
Usage Guidance | 1. Running temperature:160°C -170°C |
2. Applicable equipment : Various glue spraying machines | |
3.Applicable material: Ordinary corrugated paper, water-based varnish box | |
Package | 25kgs / plastic poly bag. |
Storage | Keep in dry and cool environment and avoid direct sunlight. |
Shelf life | 18 months. |
Coordination of sealing hot melt glue and hot melt glue machine
To give full play to the advantages of hot-melt adhesive in carton sealing, high-quality hot-melt adhesives and corresponding hot-melt adhesive machines with reliable quality and performance must be used to match.
In terms of hot-melt adhesive equipment, when choosing a hot-melt adhesive machine, cost and efficiency must be considered comprehensively. According to speed requirements, packaging box shape and sealing form, production site, layout of hot melt adhesive equipment and throat, nozzles and supporting auxiliary equipment to achieve automatic or semi-automatic glue spraying, and then give full play to the advantages of hot melt glue To achieve maximum results and economic benefits. In this regard, you can consult a professional hot melt adhesive machine manufacturer. In general, the use of fully automatic or semi-automatic glue spraying methods greatly exerts the speed and cost advantages of hot melt glue in sealing boxes compared with manual methods.
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