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Handbooks usually use thin paper (60-80g/m ²) and a hard shell cover structure. The inner pages need to be laid flat at 180 ° without falling off, and the requirements for the flexibility and bonding strength of the adhesive layer are both high. Unlike ordinary books and magazines, hand books have a very high frequency of flipping and are often repeatedly folded. If the glue layer is too hard, the spine of the book is easily broken; If it is too soft, the inner page will fall off.
| Comparison item | EVA hot melt adhesive granules | APAO hot melt adhesive granules |
|---|---|---|
| flexibility | Medium, slightly hard at low temperatures | Excellent, resistant to bending and repeated flipping |
| Opening hours | 1-3 seconds (fast fix type) | 3-6 seconds (suitable for manual operation) |
| Initial Tack | High, adhesive will stick when applied | Medium, requiring slightly longer compression |
| Low temperature resistance | -Brittle below 10 ° C | -Still soft at 20 ° C |
| Price | Economy | Slightly higher (about+15%) |
Recommended EVA fast curing type for machine glue assembly line – fast gluing speed and compact rhythm; Manual or semi-automatic binding is recommended by APAO – it has a long opening time and high fault tolerance, especially suitable for small batch cultural and creative studios. Both types of Sunlife hot melt adhesive substrates have corresponding models, and Guangzhou Sunlife Trading can recommend free selection solutions based on your binding method.
Book binding adhesivePurchasing should not only compare unit prices. Wireless adhesive packaging, quick printing of graphics and text, and on-demand production of short versions have different focuses on opening time, initial adhesion, flexibility, and operational stability. This article provides a procurement evaluation framework for practical production. Core KeywordsBook binding adhesive、Graphic and text quick printing adhesiveWireless […]
Sealed boxHot melt adhesive granulesWhat should I do if I block the rubber hose? The sealing line is most afraid of rubber hose blockage: the dispensing speed may fluctuate, and even flow may be interrupted, resulting in poor sealing of the box. There are two common reasons for pipe blockage – incorrect glue temperature and […]
Why does bookmark ribbon pasting require high adhesive particles? The ribbon bookmark of hardcover books is usually 3-5mm wide and pasted on the top inner side of the spine, with a small area and concentrated force. Ribbon materials are mostly polyester or nylon fabrics, with a smooth and flexible surface, and the adhesive layer must […]
The yellowing and browning of hot melt adhesive, and even the brittleness of the book back, are mostly caused by the high temperature of the glue pot leading to the thermal decomposition and carbonization of EVA, or repeated heating, insufficient antioxidants, and improper storage. 160-180 ℃ is a safe use zone.
