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What are the main functions of composite spun fibers

source：www.kingcharmgroup.com | Release time：2026-04-27

The core function of composite spun fibers is to concentrate the advantages of two or more materials on one fiber, achieving the integration of "comfort+toughness+multifunctionality", while compensating for the shortcomings of a single fiber.
1、 Basic principles
Squeeze two different polymers (such as polyester+nylon, PP+PE) together with a special spinneret to form structures such as skin core, parallel, and sea islands, with two materials in one fiber at the same time.
2、 Main functions (by application)
1. Comfortable and healthy category (clothing/home textiles)
Moisture wicking: Leather core structure (hydrophilic skin layer+hydrophobic core), moisture wicking and quick drying, commonly used in sportswear and underwear.
Fluffy and warm: The parallel type curls due to poor shrinkage, making it fluffy and light warm like wool, suitable for making warm underwear and imitation wool fabrics.
Soft and skin friendly/anti allergic: The surface is made of cotton or modified components to reduce irritation, suitable for mother and baby, and close fitting fabrics.
2. Functional protection category (medical/outdoor/tooling)
Antibacterial and deodorizing: adding silver ions, zinc oxide, etc., the antibacterial rate can reach 99%, used for masks, medical clothes, socks.
UV protection (UPF50+): adding TiO ₂, reflecting/blocking UV, sunscreen clothing, umbrella fabric.
Flame retardant/anti-static: composite flame retardant and conductive components, used for firefighting suits, mining fixtures, and electronic dust-free cloths.
3. Physical performance category (strength/durability/ultra-fine)
High strength+wear-resistant: Leather core (strong and tough core+wear-resistant leather), stretch resistant, friction resistant, seat belts, tents, industrial fabrics.
Ultra fine fiber (sea island type): After dissolving in the sea, 0.001dtex grade ultra-fine fiber is obtained, including suede, cleaning cloth, and wiping material.
Elasticity and shape retention: Parallel curling+elastic components, good rebound, not easily deformed, suitable for sports tight fitting clothes and yoga cloth.
4. Natural imitation and easy maintenance
Imitation cotton: hydrophilic+polyester composite, moisture absorbing, breathable, wrinkle resistant, and non shrinking.
Imitation wool: Fluffy and curly with adjustable luster, keeping warm like wool without insect infestation, easy to wash and dry.
3、 Typical Structure → Function Comparison Table
Leather core type: Strong and elastic core, wear-resistant/hydrophilic/antibacterial leather → sportswear, socks, sanitary materials.
Parallel type: Poor shrinkage → Curly and fluffy, good elasticity → Imitation wool, warm floc, blanket.
Island type: After sea dissolution, it becomes ultrafine fibers → suede, cleaning cloth, artificial leather base cloth.
4、 One sentence summary
Composite spun fibers are a versatile fiber that combines comfort (moisture absorption/fluffiness), toughness (wear resistance/high strength), multifunctionality (antibacterial/sun protection/flame retardant), and ease of care (wrinkle resistance/quick drying) in the fields of clothing, healthcare, outdoor, and industry.

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