
Surface-folding mechanism research
Mechanism pathway
Surface lines don't appear suddenly—they accumulate from daily expressions, dryness, external stimuli and long-term surface-tension change. Around surface-fold formation, dynamic-mark deposition and the orientation of epidermal patterns, the work observes why short-term expression lines gradually become more visible and fixed. Not just covering lines, it asks why the surface easily retains imprints, and how to support a more even, orderly surface state.
Applicable scenarios
- Suited for fine folds in expression-frequent areas, more visible surface texture, lines that stand out when dry, and observation of early line-formation patterns.













