Core spun yarns are composed of a core fiber wrapped by a sheath fiber, combining the properties of both materials. The core provides strength and durability while the sheath imparts a soft surface texture.
Viscose Core Spun Yarn vs Acrylic Core Spun Yarn
Introduction to Core Spun Yarns
Core spun yarns are composed of a core fiber wrapped by a sheath fiber, combining the properties of both materials. The core provides strength and durability while the sheath imparts a soft surface texture. Core spun yarns are widely used for knitwear like sweaters and socks due to their versatility. Viscose and acrylic are common core fibers used together with polyester or nylon sheaths. This article compares viscose and acrylic core spun yarns in sweater production.
Manufacturing Process of Viscose and Acrylic Core Spun Yarns
Viscose and acrylic core spun yarns are produced on ring spinning frames. The core fiber is fed through the middle of the yarn while the sheath fiber is wrapped around it. For viscose core yarns, pulp is dissolved to make viscose filament which is cut into staple fibers. Acrylic core fibers are extruded from polymer solutions then cut. The core fibers are drafted, gathered into a sliver, then combined with the sheath roving before spinning the final yarn. The core ratio impacts the yarn properties.
Viscose Core Spun Yarn Properties and Characteristics
Viscose core spun yarns have a soft, cotton-like feel which provides comfort against the skin. The viscose core is hydrophilic and absorbs moisture well. Viscose has good flexibility and elasticity, with moderate tenacity and abrasion resistance. It is smooth and uniform. Viscose core yarns enhance drape, luster, and dye uptake compared to all acrylic yarns. They can pill but are easily washable. Viscose shrinks minimally and provides thermal insulation.
Acrylic Core Spun Yarn Properties and Characteristics
Acrylic core spun yarns have a wool-like handle and warmth. The acrylic fiber core provides outstanding shape retention and resilience to return to form after stretching. Acrylic has low moisture absorption and dries quickly. It has excellent abrasion resistance and durability for long sweater life. Acrylic core yarns have high bulk and volume. They resist shrinking or fading with washings. Compared to viscose, acrylic can feel harsher against skin.
Viscose vs Acrylic: Softness and Texture
Viscose core yarns have a smooth, silky softness for excellent comfort in sweaters worn next to skin. Acrylic is moderately soft but can feel harsh or scratchy for some people, especially in high gauge knits. Viscose provides a fluid, cottony drape while acrylic holds its shape tenaciously. For ultra-soft women's or children's knits, viscose is the better option. Acrylic works for outerwear requiring more structure.
Viscose vs Acrylic: Elasticity and Shape Retention
Viscose core yarns have high elastic recovery for stretchy, form-fitting sweaters retaining their shape after wear. Acrylic resists stretching and bounces back after deformation better than viscose. Acrylic makes stiffer, denser fabrics that ease minimally. For tight ribbed cuffs or feminine cardigans, viscose has superior stretch and recovery. Acrylic is ideal for heavily textured knits holding their three-dimensional structure.
Viscose vs Acrylic: Thermal Insulation and Breathability
Viscose core yarns absorb moisture better than acrylic, providing warmth yet breathing to reduce clamminess. Acrylic's hydrophobicity prevents water absorption, keeping wearers drier. Acrylic is warmer than viscose and builds static electricity, attracting lint. For heavily cabled wool-free sweaters, acrylic excels in insulation. Viscose has better moisture control for temperature regulation in changeable climates.
Viscose vs Acrylic: Durability and Pilling Resistance
Acrylic core spun yarns are highly durable and resistant to pilling or abrasion damage. Viscose pills more readily, requiring anti-pilling finishes. Acrylic maintains its appearance after repeated launderings. For budget-friendly children's or school sweaters seeing rough wear, acrylic is the better choice. Premium viscose-core yarns enhance the lifespan for high-end knits.
Viscose vs Acrylic: Cost Comparison
Viscose is approximately 1.1-1.2x the cost of acrylic fiber. Acrylic core spun yarns provide an affordable alternative to natural fibers like wool. However, at similar counts, the ultra-soft viscose core yarns command a price premium for their luxurious qualities compared to scratchy acrylic. For value-focused knitters, acrylic is ideal while viscose works for high-end fashion knits. Blends allow tailoring benefits affordably.
Which is softer, viscose core spun or acrylic core spun yarn?
Viscose is much softer than acrylic.
Which pills more, viscose or acrylic yarn?
Viscose pills more than acrylic.
Is viscose or acrylic yarn more breathable?
Viscose is more breathable.
Does viscose or acrylic stretch more?
Viscose stretches and recovers better than acrylic.
Which is warmer, viscose or acrylic yarn?
Acrylic provides more warmth than viscose.
Which core spun yarn is more expensive?
Viscose core spun yarns are 1.1-1.2 times more expensive than acrylic core spun yarns. It also depends on other compositions.