Single-Bar Raschel Machines: The Ideal Solution for Net Production

Single-bar Raschel machines provide an innovative and highly efficient solution for producing various types of textile nets, including agricultural, safety,
and fishing nets. These nets serve a wide range of applications, with one of their primary functions being protection against adverse weather conditions. In
these cases, they must withstand constant exposure to varying climatic effects. The advanced warp knitting technology integrated into single-bar Raschel
machines offers unmatched possibilities for net production, surpassing any other manufacturing method in versatility and performance.

Key Factors Influencing Net Characteristics

• Lapping technique
• Number of guide bars
• Machine gauge
• Yarn threading arrangement
• Stitch density
• Type of yarn used

By adjusting these parameters, manufacturers can tailor the net’s properties to meet diverse end-use requirements, such as:

• Sun protection factor: Controlling the level of shade provided
• Wind permeability: Adjusting airflow resistance
• Opacity: Regulating visibility through the net
• Stability and elasticity: Modifying flexibility in lengthwise and crosswise directions

Fundamental Lapping Constructions for Net Production

1. Pillar Stitch

The pillar stitch construction is the foundation for net manufacturing and the most commonly used lapping technique. It ensures the
required lengthwise strength and stability, making it essential for net durability. However, to create a functional textile substrate,
the pillar stitch must be combined with an inlay lapping or other complementary structures.

2. Inlay (Weft)

While an inlay structure alone cannot form a textile substrate, it plays a crucial role in crosswise stability. By
interconnecting two, three, or more stitch wales, the inlay enhances the fabric’s resistance to lateral forces. Generally, the more wales joined
together in an underlap, the more stable and resilient the net becomes.

3. Tricot Lapping

Tricot lapping is achieved by the sideways shogging of the guide bar relative to the adjacent needle. When used without additional
guide bars, it results in a highly elastic fabric. Due to its inherent high elasticity in both lengthwise and
crosswise directions, tricot lapping is rarely used in net manufacturing—unless combined with additional guide bars to improve stability.

4. 2 x 1 Lapping

Similar to tricot lapping, the 2 x 1 lapping joins adjacent wales. However, instead of forming the next loop on the immediately
adjacent needle, it is created on the next-but-one needle. This principle applies to most stitch lappings, with the exception of pillar stitch
constructions.

Designing Nets with Varying Shapes and Sizes

A crucial aspect of net production is the ability to create net openings in different sizes and shapes, which is achieved by modifying key
factors such as:

• Machine gauge
• Lapping construction
• Stitch density

Additionally, the yarn threading arrangement plays a decisive role. Unlike standard configurations, the threading pattern does not always
have to align perfectly with the machine gauge. To maximize flexibility, threading variations such as 1 in, 1 out or
1 in, 2 out are frequently applied. This allows manufacturers to produce a diverse range of nets on a single machine, minimizing downtime
and eliminating the need for frequent, time-consuming changeovers.

Conclusion: Maximum Efficiency with Warp Knitting Technology

Single-bar Raschel machines offer unrivaled efficiency and adaptability for textile net production, ensuring the highest standards in
strength, stability, and design versatility. By leveraging advanced warp knitting technology, manufacturers can seamlessly customize net properties to meet
a vast range of industrial and protective applications—setting new benchmarks in net manufacturing excellence.