Different products have different functional requirements for silicone printing (such as wear resistance, scratch resistance, and water resistance), and hardness directly affects the performance of these properties.
| Core Functional Requirements | Recommended Hardness Range (Shore A) | Logical Explanation |
|---|---|---|
| Focus on "soft hand feel" | 18–35°A | The lower the hardness, the stronger the "soft and elastic feel" when touched, which is suitable for clothing pursuing a skin - friendly experience (such as baby clothing and home clothes). |
| Emphasize "wear resistance and durability" | 40–60°A | The higher the hardness, the denser the silicone molecular structure, and the stronger the scratch resistance and friction resistance, which is suitable for frequently used products. |
| Require "three - dimensional raised appearance" | 35–45°A | Too low hardness is easy to collapse due to its own weight (the protrusion becomes flat), and too high hardness is easy to crack after molding. This range takes into account both three - dimensional sense and stability. |
| Require "waterproof / washable" | 35–50°A | When the hardness is moderate, the film layer formed after silicone curing has better sealing performance, and it is not easy to delaminate or fall off after washing. |