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Hot Melt Adhesives for Carton Sealing

Using hot melt adhesives for carton sealing is a packaging method that employs hot melt adhesives as the sealing material to close cardboard boxes. It ensures a strong bond, preventing the boxes from easily splitting during transportation and storage. The quick setting time enhances packaging efficiency, making it suitable for large-scale automated packaging production lines.

UNISN Carton Sealing Hot Melt Adhesives are primarily used in:
The hot melt adhesive machine heats the solid adhesive to a molten state, then applies the liquid adhesive evenly to the carton's sealing flaps using a glue gun or nozzle. After closing the flaps, the adhesive cools and solidifies, creating a strong and secure seal.

Why Choose UNISN Hot Melt Adhesives?
•Comprehensive Product Range: Offers solutions tailored to different application environments and conditions, balancing quality and cost-effectiveness.
•Viscosity: Adapts to various equipment for quick and even application, ensuring a complete bond.
•Curing Speed: Matches the pressing cycle of equipment, enabling rapid fixation and significantly shortening production cycles.
•High Bonding Strength: Provides excellent adhesion to various packaging materials, ensuring durability.
•Temperature Resistance: Maintains strong bonding strength and stability across different temperature environments.
•Cost-Effective: Delivers lower-cost solutions while meeting performance requirements.
•Quality Assurance: Laboratory-tested under extreme conditions to ensure consistent and reliable quality.
•Eco-Friendly: Made from environmentally safe materials, harmless to human health and the environment. Suitable for industries with high environmental standards.
Usage and Precautions
Hot Melt Adhesives Type SubstrateApplication 
EVALow-Density Corrugated CartonHigh Speed & Low Speed Automatic Carton Sealing
SIS & SBSLaminated Corrugated CartonHigh Speed & Low Speed Automatic Carton Sealing
PolyolefinHeavy-Duty Corrugated CartonHigh Speed & Low Speed Automatic Carton Sealing

Open Time: 1-30 seconds

Temperature Settings:

Melting Tank: 150-170°C

Hose and Spray Gun: 150-160°C

Maintenance Recommendations

Weekly: Check connections. Inspect the compressed air filter bowl. Drain adhesive residue.

Quarterly: Drain adhesive to remove carbon deposits from the manifold.

Biannually: Inspect/replace the filter screen.

As Needed: Replace the spray gun body, nozzle, and filter screen, and clean the adhesive machine.

Precautions

1. Do not exceed 180°C when heating.

2. Avoid mixing different types of hot melt adhesives.

3. Wear gloves and safety goggles or a face shield when adding adhesive or performing maintenance.

4. Add materials carefully to prevent splashing and burns.

5. Maintain proper adhesive levels to avoid splashing during refilling.

6. Keep a bucket of cold water nearby for immediate treatment in case of burns.

7. Position the adhesive machine and related equipment below eye level.