Double Layer Forming Fabric双层成型网
Double layer forming fabric generally has two levels of cross-direction yarns within its woven construction. The paper-side yarns support the forming sheet, while the machine-side yarns contribute to wear resistance and stable travel.
中文介绍
双层成型网通常具有两层纬纱结构。纸面侧负责支撑成形纸页，机面侧兼顾耐磨与运行稳定，两侧可采用不同丝径和排列方式。
Applications
Printing paper, wrapping paper, newsprint, lightweight grades and board are possible applications when the machine and furnish justify this structure. It can be assessed where a single layer fabric has insufficient surface support or a more differentiated wearing surface is needed.
中文应用说明
可针对印刷纸、包装纸、新闻纸、薄型纸及纸板等进行选型，尤其适用于需要改善纸面支撑或分别优化纸面侧与耐磨面的工况。
Fabric Structure & Product Reference
A finer paper-side yarn arrangement can improve the support surface, while larger machine-side yarns can add wearing material. The internal void space and weave geometry must still suit the drainage system and cleaning conditions.
| Structure / option | Design considerations |
|---|---|
| 7-shed option | A surface-focused design to consider where paper-side smoothness and marking are priorities. |
| 8-shed option | A different weave repeat to assess for the balance of drainage and wear requirements. |
| Two weft levels | Allows sheet-side and machine-side yarn dimensions to serve different functions. |
中文结构说明
较细的纸面纱有助于形成支撑面，较粗的机面纱可提供耐磨余量。内部空间和织法仍需匹配脱水系统与清洗条件。
Selection Considerations
| Selection factor | Information to review |
|---|---|
| Surface requirement | Formation quality, wire marking and two-sidedness targets. |
| Wear side | Wear history, contact elements and the preferred wearing yarn arrangement. |
| Drainage system | Furnish, vacuum and water removal through the forming section. |
| Mechanical data | Operating tension, caliper, dimensions and permeability with a stated test method. |
Advantages
- Separate surface priorities — The paper side and machine side can be designed for different duties.
- Finer sheet support — Supports selection for grades that need a more controlled forming surface.
- Wear-side design flexibility — Yarn size and arrangement can be considered against actual wear conditions.
- Balanced operating performance — Formation, drainage and stability can be reviewed as a combined requirement.
中文优势说明
- 纸面侧与机面侧可分别优化。
- 有利于匹配更高的纸面支撑要求。
- 按磨损情况调整机面丝径与排列。
- 综合平衡成形、脱水与运行稳定性。
Request a custom forming fabric specification
Share your machine position, operating conditions, required dimensions and quantity. We will review the appropriate construction and quotation requirements.