How Is Woven Roving Made?

Understanding the manufacturing process helps you evaluate quality and understand why certain specifications matter.

Step 1 — Roving Preparation

The process begins with continuous glass fiber rovings — bundles of thousands of individual glass filaments drawn from molten glass. The linear density (tex value) of each roving bundle directly determines the final fabric weight (g/m²). For example:

• A roving of 2400 tex (2,400 grams per 1,000 meters) woven at standard spacing will yield a fabric around 800 g/m²

• Higher tex rovings produce heavier fabrics; tighter spacing increases density

  

Step 2 — Weaving

Rovings are loaded onto a loom and interlaced in the warp (lengthwise) and weft (crosswise) directions. The two main weave structures are:

Step 3 — Finishing and Packaging

Rolls are trimmed to specified widths (ranging from 10 mm to 3,000 mm in customized production), wound to standard lengths, and individually packed in polyethylene or polyester bags to prevent moisture absorption during transit and storage.