Essential Alpaca Fiber Spinning Terms and Definitions

What is the difference between suri and huacaya alpaca fleece in terms of processing?

Huacaya fleece is dense and crimpy, making it ideal for woolen spinning, while suri fiber is slick, straight, and lacks crimp, requiring a worsted approach to manage its slippery nature.

Use these characteristics to choose your drafting method: high-luster suri demands a tight, consistent twist to prevent the yarn from sliding apart, whereas huacaya’s loft allows for more forgiving, airy spinning.

How does the micron count of alpaca fiber influence the final yarn quality?

Micron count is the primary indicator of comfort, as fibers exceeding 25 microns often cause skin irritation. Lower micron counts, typically below 20, produce fine, luxurious yarn that feels soft against the neck, while higher counts are better suited for durable items like rugs or outerwear. A lot of people assume that a lower micron count automatically means the fiber is stronger, but fine alpaca is actually more fragile and prone to snapping during high-tension spinning than coarser, thicker fibers. Always balance your desired softness against the structural demands of your project.

What is the purpose of 'dehairing' raw alpaca fleece before spinning?

Dehairing is the mechanical process of separating the soft, insulating undercoat from the coarse, brittle guard hairs that inevitably mix into the fleece. Removing these stiff fibers is necessary because they do not compress or hold twist like the downy fibers, which leads to a prickly, uneven texture in the finished garment. For example, a hand-spinner might use a specialized dehairing comb to pull the shorter, coarser hairs out of a lock before processing the remaining downy fiber through a drum carder.

However, some spinners intentionally leave a small percentage of guard hair in the fleece when spinning for rustic, heavy-duty garments. This nuance adds structural integrity and a traditional, rugged aesthetic to the yarn. If you are aiming for a next-to-skin garment, prioritize thorough dehairing to make sure the final product remains comfortable and avoids the unpleasant prickle associated with coarse outer coat fibers.

Why is alpaca fiber considered a 'long-staple' fiber compared to sheep's wool?

Alpaca fiber is classified as long-staple because its average lock length frequently exceeds 4 to 6 inches, providing more surface area for fiber-to-fiber friction than many common sheep breeds.

• 4 inches is the typical minimum length for a standard alpaca staple, allowing for easier drafting compared to the shorter 2-3 inch staples found in many Merino fleeces.
• 7 inches is not unusual for suri alpacas, which requires the spinner to maintain a wider distance between their hands to prevent tangling during the draw.
• Fiber alignment is simpler with these longer staples, as the fibers naturally want to lay parallel, which is the foundation of a smooth, worsted-spun yarn.

How does the lack of lanolin in alpaca fiber affect the scouring and spinning process?

Because alpaca lacks lanolin, you don't need harsh detergents or high-temperature water to strip the fleece. A simple soak in 100-degree Fahrenheit water with a gentle wool wash is usually enough to remove dust and vegetable matter without damaging the fiber's natural structure.

What are the best spinning techniques to manage the drape and elasticity of alpaca yarn?

To manage alpaca’s lack of elasticity and tendency to drape, use a long-draw technique or a supported spindle to minimize tension during the spinning process.

• Worsted spinning helps lock the fibers into a stable, dense structure that resists the stretching common in alpaca yarns.
• High-twist settings should be avoided, as they turn the fiber into a stiff, lifeless cord rather than a soft, bouncy yarn.
• Plying with a second fiber, such as wool or silk, provides the memory and structural support that 100% alpaca often lacks.
• Small samples are essential to test how the yarn behaves after washing, as alpaca tends to bloom and lengthen significantly once the tension is released.

How should alpaca fiber be prepared for worsted versus woolen spinning methods?

Worsted spinning requires aligned, parallel fibers to create a smooth, dense yarn, while woolen spinning utilizes carded, unaligned fibers to trap air for maximum warmth.

Use these preparation styles to dictate your yarn's final character: choose combing for garments that need to resist pilling, and carding when you want a lofty, lightweight yarn that maximizes the thermal properties of the alpaca down.

What is the significance of 'guard hair' in alpaca fiber and how is it managed during drafting?

Guard hair represents the outer protective coat of the alpaca, characterized by a larger diameter and a stiffer, more brittle structure than the downy undercoat. During drafting, these hairs act as rigid intruders that disrupt the smooth flow of the finer fibers, often poking out of the yarn surface to create a scratchy feel. If you do not manage these hairs, the resulting yarn will have a halo of prickly ends that are difficult to soften even after multiple washings.

One effective management technique is to flick the ends of the locks to shake out loose guard hair before spinning. A notable exception exists when working with certain heritage-style patterns where a rustic, textured look is desired; in these cases, a small amount of guard hair can be left in to provide a heathered, natural appearance. Always assess the specific end-use of your yarn before deciding how aggressively to remove these coarse fibers.