包装の密着効果
(ほうそうのみっちゃくこうか)
Explanation:
- "包装" → 包装 (housou: packaging)
- "贴合" → 密着 (micchaku: close adhesion/fitting tightly, a common technical term for how well materials stick or fit together)
- "效果" → 効果 (kouka: effect)
This phrase is commonly used in contexts like packaging quality inspection or material testing to describe how well the packaging adheres to the product or its own layers.
**Answer:** 包装の密着効果