1.5 Layer Forming Fabric1.5 层成型网
A 1.5 layer forming fabric develops the single layer concept by adding support yarns to the woven repeat. These additional yarns increase support at the sheet-contacting surface while the underlying structure retains an open path for drainage.
中文介绍
1.5层成型网在单层织造基础上增加支撑纱，改善纸页接触面的支撑与平整度，同时兼顾脱水通道。
Applications
Board, liner, brown paper and corrugating medium are relevant starting applications. Selection is especially useful when the existing single layer fabric shows a need for better fiber support or surface uniformity, while drainage and cleanability must remain priorities.
中文应用说明
重点可考虑箱板纸、挂面纸、牛皮纸及瓦楞原纸等。若现用单层网需要改善纤维支撑和纸面均匀性，可结合脱水、清洁与运行要求评估1.5层方案。
Fabric Structure & Product Reference
The benefit of the additional yarns depends on how they are positioned and sized. Increasing support does not justify closing the fabric excessively; retention, drainage and sheet release need to be considered together.
| Structure / option | Design considerations |
|---|---|
| Modified 5-shed weave | Additional support yarns are incorporated into the single layer repeat. |
| Paper-side support | Extra yarns provide more contact points for the forming sheet. |
| Drainage arrangement | Yarn size and density must preserve sufficient space for water removal. |
中文结构说明
增加支撑纱并非越密越好。需统筹纤维留着、脱水空间、清洗和纸页剥离，避免只追求支撑而影响运行。
Selection Considerations
| Selection factor | Information to review |
|---|---|
| Current fabric | Existing weave, yarn dimensions and the reason for changing it. |
| Furnish and grade | Recycled fiber content, fines, fillers and board or liner requirements. |
| Drainage and release | Water removal, cleanliness and sheet release at the end of the forming section. |
| Machine conditions | Actual running speed, tension, dimensions and previous wear pattern. |
Advantages
- Additional sheet support — Provides a way to refine the paper-side surface of a single layer concept.
- Balanced retention and drainage — The yarn arrangement can be reviewed for both fiber support and water removal.
- Practical cleaning access — An open weave remains an important part of the design.
- A targeted structural upgrade — Offers an option between conventional single layer and more complex structures.
中文优势说明
- 增加纸面支撑点，改善支撑面。
- 兼顾纤维支撑与脱水。
- 保留清洗通道与清洁性。
- 为单层网升级提供可评估方案。
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.