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Performance & Effects of Nylon Yarn Blended/Interwoven with Other Fibers
Performance & Effects of Nylon Yarn Blended/Interwoven with Other Fibers
Nylon filament, also known as polyamide filament, is a long filament form of polyamide fiber. Its core raw material is polyamide resin, and it is produced as continuous filaments through melt spinning or solution spinning processes. Nylon filament typically has a smooth cylindrical shape with a generally circular cross-section. It comes in a variety of colors and can be dyed into various vibrant hues.
Depending on different production processes and applications, nylon filament can be divided into several types, such as nylon filament (including nylon monofilament and nylon multifilament) and nylon staple fiber. Nylon filament is more widely used in the textile industry, for weaving various fabrics such as socks, underwear, sportswear, parachutes, and fishing nets.
Performance and Effects of Nylon Yarn Blended/Interwoven with Other Fibers
Blending (mixing different fibers in the same yarn) or interweaving (different fibers forming the warp and weft yarns respectively) are common modification methods for nylon filament. By combining it with natural fibers, chemical fibers, or high-performance fibers, the advantages of nylon can be retained while its shortcomings can be compensated for, and the strength, durability, and other functions of the fabric can be specifically improved.
The Effects of Blending Nylon Yarn with Natural Fibers
Natural fibers (cotton, wool, silk, linen) offer advantages such as skin-friendliness, breathability, and natural luster, along with good moisture absorption and comfort. However, they generally suffer from low strength, poor abrasion resistance, and a tendency to pill. Blending them with nylon yarn achieves a balance of strength and softness.
1. Nylon/Cotton Blend
- Strength Enhancement: The breaking strength of cotton fiber is approximately 2.5-4.5 cN/dtex. The addition of nylon yarn increases the strength of the blended yarn by 30%-80% (depending on the proportion).
- Significant Leap in Abrasion Resistance: Pure cotton fabrics withstand approximately 2000-3000 abrasion cycles, while nylon/cotton fabrics can reach 8000-12000 cycles, approaching the performance of pure nylon fabrics, thus extending their service life (e.g., workwear, jeans). Comfort Optimization: The moisture absorption of cotton fibers compensates for the low moisture absorption of nylon, increasing the moisture permeability of blended fabrics from 300-500g/(m²·24h) of pure nylon to 800-1200g/(m²·24h), resulting in a drier feel when worn.
- Application Scenarios: Sportswear, workwear (abrasion and tear resistance), home textiles.
2. Nylon/Wool Blend
- Strength and Pilling Resistance: Wool fibers have a scaly surface structure, making them prone to pilling during friction (pure wool fabrics typically have a pilling rating of 3-4, with 5 indicating no pilling). Adding 10%-40% nylon yarn reduces scale entanglement on the smooth surface of nylon, improving pilling resistance to level 4-5. Simultaneously, nylon's high strength increases the fabric's breaking strength from 1.5-2.0 cN/dtex for pure wool to 2.5-3.5 cN/dtex, making it more suitable for high-end textiles such as suits and blankets.
- Elasticity and Wrinkle Resistance: Wool has an elastic recovery rate of approximately 90%, while nylon's is >95%. Blended fabrics are crisper and less prone to wrinkling.
- Applications: Worsted wool fabrics (suits, coats), blankets (improved durability).
The Role of Blending Nylon Yarn with Chemical Fibers
Chemical fibers (polyester, acrylic, spandex, etc.) each have unique properties; blending them with nylon yarn further optimizes the overall performance of the fabric.
1. Nylon/Polyester Blend
- Dual Improvement in Strength and Modulus: Polyester (polyester fiber) has a breaking strength of approximately 4-5 cN/dtex and an initial modulus (resistance to deformation) as high as 90-120 cN/dtex (nylon is only 40-60 cN/dtex). After blending, the fabric retains the abrasion resistance of nylon (polyester's abrasion resistance is 15 times that of cotton, slightly lower than nylon) while also gaining the high modulus of polyester (better wrinkle resistance).
- Synergistic Combination of Abrasion Resistance and Weather Resistance: Polyester's weather resistance (UV resistance, oxidation resistance) is superior to nylon. Blended fabrics used outdoors (such as sunshade fabrics, waterproof jackets) are less prone to aging under prolonged sun exposure.
- Application Scenarios: Outdoor clothing (waterproof jackets, hiking pants), industrial fabrics (tents, backpacks).
2. Nylon/Spandex Blend
- Improved Elasticity and Recovery： Spandex (polyurethane fiber) has a breaking elongation of 500%-700% and an elastic recovery rate >95%. Adding 5%-20% spandex increases the elastic elongation of nylon/spandex fabrics from 30%-40% for pure nylon to 50%-70%, with a recovery rate approaching 100%. For example, underwear and yoga pants made with a 40D nylon + 20D spandex blend perfectly conform to the body's curves and do not sag or deform after strenuous exercise.
- Strength Retention： Spandex has relatively low strength, but a high proportion of blended fabric may reduce overall strength; a low proportion of blended fabric allows nylon's high strength to dominate, maintaining excellent load-bearing capacity (e.g., the cuff of sports socks, which requires high elasticity and resistance to breakage).
- Application Scenarios： Compression clothing (yoga wear, swimwear), socks (anti-slip cuffs).
In summary, When nylon filaments are blended or interwoven with other fibers, they can generally improve the strength and durability of fabrics, while also potentially imparting other excellent properties. Nylon filaments possess many superior characteristics, which makes them widely used in the textile industry.
标签：Nylon Yarn