Packaging Adhesive Solutions
Modern packaging demands speed, strength, and sustainability. Kelan’s hot melt adhesives power high-speed carton sealing worldwide.
Why Adhesive Choice Matters
Packaging failures create cascading costs. Damaged shipments lead to returns. Weak seals collapse under pressure. Therefore, selecting the right adhesive directly impacts profitability.
Conversely, proper adhesive transforms operations. Faster speeds increase throughput. Stronger seals reduce claims. Cleaner application improves safety. Ultimately, adhesive selection determines success.
Applications We Serve
Carton Sealing
Corrugated boxes dominate shipping globally. Hot melt adhesives seal flaps faster than tape. Additionally, they create stronger, tamper-evident closures.
| Application | Adhesive | Feature |
|---|---|---|
| Standard shipping | KL-EVA-PK-160 | Fast set, 2-second open |
| Heavy-duty boxes | KL-EVA-PK-HD | High tack, reinforced |
| High humidity | KL-PUR-PK-130 | Moisture-resistant seal |
Tray Forming
Pre-formed trays require precise adhesive placement. Speed and consistency determine efficiency.
- Standard trays: KL-EVA-PK-TR — 400+ trays/minute
- Deep-draw trays: KL-EVA-PK-DD — prevents corner cracking
- Display trays: KL-EVA-PK-DP — clear, no residue
Case Closing
Case sealers operate at extreme speeds. Adhesives must set instantly yet maintain flexibility.
| Speed | Adhesive | Set Time |
|---|---|---|
| 20-40/min | KL-EVA-PK-CS1 | 1.5 seconds |
| 40-60/min | KL-EVA-PK-CS2 | 1.0 second |
| 60-100/min | KL-EVA-PK-CS3 | 0.5 seconds |
Industry Solutions
Food Packaging
Food safety regulations govern packaging adhesives strictly. Kelan’s formulations meet FDA and EU standards.
| Application | Adhesive | Certification |
|---|---|---|
| Dry food cartons | KL-EVA-PK-FD1 | FDA indirect contact |
| Frozen food boxes | KL-EVA-PK-FF | FDA, cold-flexible |
| Hot-fill containers | KL-EVA-PK-HF | Heat-resistant |
| Microwaveable | KL-PUR-PK-MW | 120°C resistant |
E-Commerce
E-commerce packaging faces unique stresses. Variable contents, rough handling, and temperature extremes challenge seals.
- Variable box sizes: KL-EVA-PK-EC — adapts to recycled and virgin corrugated
- Heavy items: KL-EVA-PK-HV — reinforced for 30kg+ packages
- Cold chain: KL-EVA-PK-CC — maintains seal at -20°C
Performance Factors
Setting Speed
Setting speed determines throughput. However, faster setting reduces positioning flexibility.
| Time | Application | Trade-off |
|---|---|---|
| < 0.5 sec | Ultra-high-speed sealers | Requires precise control |
| 0.5-1.5 sec | Standard carton sealing | Optimal balance |
| 1.5-3 sec | Tray forming | Allows adjustments |
Temperature Performance
Packaging adhesives face extreme ranges.
| Condition | Temp | Challenge | Solution |
|---|---|---|---|
| Freezer | -40 to -18°C | Brittle failure | Cold-flexible grade |
| Refrigerated | 0 to 4°C | Reduced tack | Low-temp grade |
| Hot fill | 60 to 85°C | Softening | Heat-resistant grade |
| Summer transport | Up to 70°C | Thermal degradation | High-heat grade |
Sustainability
Bio-Based Options
Kelan’s bio-based adhesives contain 30-50% renewable materials.
- KL-BIO-PK-160: 40% bio-content, standard performance
- KL-BIO-PK-FF: 35% bio-content, cold-flexible
- KL-BIO-PK-HD: 50% bio-content, heavy-duty
Energy Savings
| Adhesive | Application Temp | Energy Savings |
|---|---|---|
| Standard EVA | 170-180°C | Baseline |
| Low-temp EVA | 140-150°C | 20-25% |
| Ultra-low-temp | 120-130°C | 30-35% |
Case Study
Customer: European e-commerce center, 500,000 packages daily.
Challenge: 3.2% pop-open rate, 2.1% damage complaints, cold warehouse.
Solution: KL-EVA-PK-EC cold-flexible formulation.
Results:
| Metric | Before | After |
|---|---|---|
| Pop-open rate | 3.2% | 0.15% |
| Damage complaints | 2.1% | 0.3% |
| Line speed | 65/min | 80/min |
| Adhesive use | 1.8g/box | 1.4g/box |
Product Range
| Product | Type | Application | Feature |
|---|---|---|---|
| KL-EVA-PK-160 | EVA | Standard cartons | Fast set, economical |
| KL-EVA-PK-HD | EVA | Heavy-duty | High strength |
| KL-EVA-PK-FF | EVA | Frozen food | Cold-flexible |
| KL-EVA-PK-EC | EVA | E-commerce | Variable substrate |
| KL-PUR-PK-130 | PUR | Moisture-resistant | D4 seal |
| KL-BIO-PK-160 | Bio-EVA | Sustainable | 40% bio-content |
Get Started
Optimize your packaging operation today.
Request Free Audit — engineers analyze your line and recommend solutions.
Free samples: Test on your equipment before committing. Request here.
According to the Adhesive and Sealant Council, inadequate packaging adhesives contribute to billions in annual product losses globally.All food-contact adhesives are manufactured under ISO 9001 and HACCP protocols.Testing follows ASTM D4498 and TAPPI T813 standards for packaging adhesive evaluation.