Audited Supplier
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 costsHardcover 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
Temperature Control
Optimal Range: 150-180°C (for EVA-based adhesives)
Critical Note: Excessive heat causes polymer degradation (>200°C reduces bond strength by ≥30%)
Application Methods
| 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 |
Spine Preparation
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.The HIGHKINGS hot melt adhesive stick production line serves as a paragon of excellence in the creation of superior-quality EVA sticks, available in a delightful assortment of colors and sizes (7mm-11mm). This highly advanced production line seamlessly integrates cutting-edge Stirred Tank Reactors, a robust Single Screw Extruder, an innovative cooling system, and a precision cutter, ensuring unwavering consistency and production reliability. The uniform output and exceptional clarity of these EVA sticks make them an adaptable and cost-effective solution, widely coveted across a diverse spectrum of industries. Whether for packaging, furniture, DIY crafts, automotive, medical, printing, filtration, or labeling, our sticks are the ultimate choice. Renowned for its superior mixing capabilities, high output efficiency, and steadfast performance, our equipment is the preferred choice for numerous applications. With a steadfast commitment to competitive pricing and unparalleled quality, HIGHKINGS deftly meets the dynamic demands of multiple industries with unmatched proficiency and excellence.
The HIGHKINGS hot melt adhesive pellet production line is a marvel of meticulous engineering, designed to produce premium-grade pellets of the highest excellence. With advanced mixing capabilities, this line ensures stable production, uniform output, and pristine clarity. It comprises core components such as state-of-the-art extruders, sophisticated underwater pelletizers, efficient cooling systems, and automated packaging machines. Crafted with precision to cater to an extensive range of industries-from packaging and furniture to automotive, medical, printing, filtration, and labeling-this production line offers exceptional high output, remarkable energy efficiency, and intuitive, user-friendly operation. Customizable to address diverse and specific needs, HIGHKINGS provides comprehensive services, from insightful pre-sales consultation to reliable after-sales support, guaranteeing optimal performance and utmost customer satisfaction, elevating your operational efficiency to unprecedented heights.
1.The Nozzle Or Hose Is Clogged?
Raise The Temperature,Or Choose Glue With Low Viscosity.Clean The Glue Spraying System Or Lower The Temperature And Change The Glue.Raise The Temperature,Or Choose Glue With Low Viscosity.
2.The Hot Melt Adhesive Is Carbonized?
Reduce The Temperature.Fill The Cylinder With Glue,And Add Glue As Stipulated In The Technical Documents.Changing Glue.
3.Hot Melt Adhesive Is Gelled?
Clean The Glue Tank,Standardized Glue Change And Consult With Suppliers To Help Solve Problems.Reduce The Temperature,Clean The Glue Tank,And Consult With Suppliers To Help Solve Problems.Clean The Glue Tank And Consult The Supplier For A Mmoresuitable Model.
4.There Is Blistering In The Hot Melt Adhesive?
Consultwith Suppliers To Help Solve Problems And Change The Glue.
5.The Hot Melt Adhesive Was Smoking?
Reduce The Temperature And Change To A More Suitable Type.Replace Out-Of-Control Components And Consult The Equipment Suppliers.
6.The Hot Melt Adhesive Have Poor Bonding?
Increases Coating Thickness Or Temperature.Check Whether The Operating Temperature Is Well Lowered Or Use A Faster Curing Model.Adjust The Angle And Pressure Of The Substrate To Ensure That The Substrate Can Completely Contact Well During The Cooling Process Of The Glue.Change To A More Suitable Type.
