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The desk calendar is a hard demand for graphic and text fast printing stores during the peak season every year. The binding methods are divided into circle binding, glue binding, and loose leaf binding, with significant differences in corresponding glue particles. We conducted a horizontal evaluation of three mainstream adhesive particles, Sunlife Hot Melt Adhesive, and the conclusion is as follows:Circular packaging for initial adhesion, adhesive packaging for reading spine toughness, and loose leaf for durable flipping.

| Adhesive type | softening point | Opening hours | Suitable for binding | Unit Price Reference |
|---|---|---|---|---|
| SL medium temperature adhesive particles | 90℃ | 10s | Circular/Loose leaf | middle |
| SL high resilience spine glue | 98℃ | 12s | Rubber table calendar | upper middle |
| SL Low temperature quick adhesive | 82℃ | 6s | Thin paper sheet | middle |
Q: Will the calendar peel off when hung next to the heater?
If it is close to the heater (>40 ℃), ordinary medium temperature glue will stick back. It is recommended to use high softening point glue particles above 100 ℃.
Q: Where did the evaluation samples come from?
Guangzhou Sunlife Trading provides same batch evaluation packages, and graphic stores can send samples for testing before placing an order.
In one sentence: There is no universal way to bind calendars with hot melt adhesive granules, and it is most stable to match them according to the binding method.
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