## VI. Industry Development Trends
1. Develop towards higher count and ultra-fine denier.
2. Develop functional core-spun yarns (such as antibacterial, moisture-wicking, etc.).
3. Research and develop environmentally friendly core-spun yarns.
4. Enhance the level of production automation and intelligence.
5. The demand for differentiated and personalized products is increasing.
## VII. Quality Indicators
1. Elastic recovery rate
2. Breaking strength
3. Fiber uniformity
4. Acrylic content
5. Fiber fuzziness
