| Customization: | Available |
|---|---|
| CAS No.: | 24937-78-8 |
| Formula: | EVA |
|
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Bookbinding Hot Melt Adhesive Discover the epitome of thermoplastic bonding excellence with our Hot Melt Adhesive, engineered to deliver premier adhesion through an innovative heat-melt-coat-cool process, ensuring unparalleled results with every application.
1. Characteristics of Hot Melt Adhesives
Fast Curing: Solidifies within seconds after cooling, ideal for high-speed production lines.
Eco-Friendly: Solvent-free and low VOC (volatile organic compounds), meeting environmental standards.
Weather Resistance: Resistant to aging and moisture, though may soften in high-temperature environments.
Bonding Strength: Provides strong adhesion to materials such as paper, cardboard, and fabric.
2. Application Scenarios in Bookbinding
Perfect Binding: Used for paperback books, magazines, and manuals to bond pages with covers.
Hardcover Books: Reinforces spine stability and cloth linings.
Saddle-Stitched Covers: Strengthens adhesion between covers and inner pages.
Case Making: Bonds cover materials (e.g., cardboard, leather) for hardcover books.
3. Common Types of Hot Melt Adhesives
| Type | Advantages | Limitations | Typical Applications |
|---|---|---|---|
| EVA-Based (Ethylene-Vinyl Acetate) |
• Low cost • Excellent paper adhesion |
• Low heat resistance (Softening point: 60-80°C) |
Paperback books, magazines |
| PUR (Polyurethane Reactive) |
• High heat resistance (up to 120°C) • Superior flexibility |
• Moisture-curing required • Higher equipment costs |
Hardcover books, premium editions |
| APAO-Based (Amorphous Polyalphaolefin) |
• Outstanding elasticity • Fatigue resistance |
• Higher material cost | Lay-flat books, frequently opened manuals |
4. Key Process Parameters for Adhesive Application
Optimal Range: 150-180°C (for EVA-based adhesives)
Critical Note: Excessive heat causes polymer degradation (>200°C reduces bond strength by ≥30%)
| Method | Technical Specification | Equipment |
|---|---|---|
| Roll Coating | 0.1-0.3mm glue layer thickness ±5% uniformity requirement |
Glue roller systems |
| Spray Application | 50-100μm droplet size Requires 0.3-0.6MPa air pressure |
PUR-specific spray heads |
Milling: Remove 0.5-1.0mm spine edge (45° grinding angle)
Roughening: 60-80 grit sanding for 20-30% porosity increase
Pre-heating: 50-60°C surface temperature enhances wetting
Process Validation Metrics:
✓ Adhesive penetration depth ≥0.4mm
✓ Binding strength ≥35N/cm (ISO 15754 standard)
Note: EVA/PUR require different spine roughness profiles - consult our technical guide for parameters.
| Category | Graphic Adhesive | Back Adhesive | Side Adhesive |
| Appearance | Natural Color Particles |
Natural Color Particles |
Yellow Particles |
| Viscosity mp.s/180ºC | 4000±1000 | 2000±500 | 1500±500 |
| Softening Point/ºC | 85±5 | 75±5 | 75±5 |
| Operating Temperature/ºC | 140-160 | 140-160 | 140-160 |
| Usage Instructions | Roller Coating | Roller Coating | Roller Coating |
The esteemed HIGHKINGS brand, a distinguished arm of Foshan Haijinsha Refractory Materials Co., Ltd., is strategically located in the bustling heart of China's eminent hot melt adhesive industry in Foshan City, Guangdong Province. As trailblazers in the realm of modern machinery and equipment craftsmanship, we are fervently dedicated to providing comprehensive, seamless, one-stop solutions that cover every facet of hot melt adhesive machinery. Our extensive and versatile offerings span the intricate development, precision parts processing, meticulous assembly, thorough debugging, and outstanding after-sales service. Our extensive product range features state-of-the-art equipment including the Hot Melt Glue Extruder, Single Screw Extruder, Stirred Tank Reactors, Underwater Pelletizers, Underwater Granulators, Cooling Water Tanks, Haul Off Systems, and Auto Cutters. Additionally, we are masters in the art of crafting bespoke hot melt adhesives and innovative formulas, adeptly catering to a vast array of industrial requirements, ensuring adaptability and pioneering innovation at every turn.
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