2.5 Layer Forming Fabric2.5 层成型网
A 2.5 layer forming fabric is a double layer structure with additional cross-direction support yarns at the forming surface. These yarns increase the number of sheet support points without requiring the wearing surface to use the same fine arrangement.
中文介绍
2.5层成型网在双层结构上增加纸面侧支撑纬纱，增加纸页支撑点，并让机面侧保持适合耐磨的结构。
Applications
Relevant applications include printing paper, wrapping paper, newsprint, lightweight grades and board. The structure can be evaluated when sheet surface, fiber support and retention are important but drainage and wearing potential must be maintained.
中文应用说明
可针对印刷纸、包装纸、新闻纸、薄型纸与纸板等选型。适合需要加强纸面支撑，同时保留脱水空间和耐磨余量的工况。
Fabric Structure & Product Reference
The support surface and machine-side openness are designed together. A change in yarn count can alter contact area and drainage, so sheet release, fabric stability and cleaning must also be checked.
| Structure / option | Design considerations |
|---|---|
| Support-yarn design | Extra weft yarns sit between the regular forming-side yarns. |
| 16-shed reference | One construction family described in the reference material; final weave is selected for the position. |
| Machine-side arrangement | Larger yarns and longer wearing floats can be considered where durability is a priority. |
中文结构说明
纸面支撑与机面空间需一并设计。调整纱线数量会影响接触面积和脱水，选型时还要核对纸页剥离、稳定性与清洗效果。
Selection Considerations
| Selection factor | Information to review |
|---|---|
| Paper-side target | Acceptable wire marking, sheet support and retention needs. |
| Furnish | Fiber distribution, fines content and the drainage behavior of the stock. |
| Machine-side duty | Actual tension, contact elements and abrasion history. |
| Specification | Paper-side and wear-side yarn sizes, density, caliper and tested permeability. |
Advantages
- More paper-side support points — Additional yarns help refine the supporting surface.
- Differentiated wearing surface — The machine side can retain a more wear-focused construction.
- Formation and retention focus — Offers a structural option where finer sheet support is required.
- Drainage considered with support — Avoids selecting a denser surface without reviewing water removal.
中文优势说明
- 增加纸面支撑点。
- 机面侧可保留耐磨导向结构。
- 适用于重视成形与留着的选型。
- 将支撑能力与脱水需求一并评估。
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.