Untwisted roving is directly wound after high-temperature drawing without further processing. Compared to bundled yarn (plied yarn), it has better permeability and mechanical properties.
The yarn surface is smooth, free fibers and floating fibers are reduced, mold wear is reduced, the surface quality of the product is improved, yarn breakage is reduced, and the operation stability of the equipment is improved
Good fiber dispersion
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The yarn bundle has a compact structure and moderate tightness. It is easy to disperse into monofilaments or thin bundles after being stressed, which is conducive to the rapid and uniform infiltration of resin and improves the density and uniformity of the product
High strength
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The overall tensile performance is excellent, meeting the requirements of the load-bearing structure and improving the mechanical properties of the product. It is particularly suitable for high-strength pultruded profiles or pressure-bearing winding pipes
Stable drawing tension
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Uniform winding, consistent linear density, appropriate tightness of yarn balls, balanced yarn drawing tension during operation improve the stability of winding/pultrusion process, reduce yarn breakage and yarn skipping, and adapt to the needs of high-speed continuous production
Resin compatibility
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Adaptable to mainstream systems such as unsaturated polyester, vinyl ester, epoxy, polyurethane, etc. to achieve rapid resin wetting, enhance the interface between fiber and resin, and ensure the mechanical and durability of the product
