Getting Started with Alpaca Fiber Sorting for Beginners

What are the primary physical characteristics used to grade alpaca fleece?

Grading relies on fineness, measured in microns, and the degree of crimp, which refers to the natural wave or zigzag pattern in the fiber. Higher-quality fleece exhibits a tighter, more uniform crimp and a lower micron count, signaling superior softness. For instance, a Royal Baby grade typically falls below 19 microns and displays a very consistent, dense structure across the blanket.

Uniformity of length is another factor, as fibers that vary too much in length create challenges for spinning equipment. However, color consistency is a nuance that often overrides fineness in specific market segments. A slightly coarser white fleece may command a higher price than a finer colored one because it is easier to dye, meaning the end use dictates which physical trait takes precedence during the sorting process.

Which tools are essential for a beginner to begin the sorting process?

You need a few specific items to manage the sorting process effectively without damaging the delicate fibers.

• Sorting table constructed with wire mesh or hardware cloth allows dust and short bits of debris to fall through the surface while you work.
• Digital scale capable of measuring in grams provides the precise weight needed for tracking yield and determining pricing per ounce.
• Plastic bins or breathable mesh bags keep sorted grades separated and protected from moisture or pests during storage.
• Tweezers or small dental picks help remove stubborn vegetable matter that is trapped deep within the locks of the fleece.

How does the categorization of fiber differ between huacaya and suri alpacas?

Huacaya fleece is categorized by its dense, crimpy structure, while suri fiber is sorted based on its long, lustrous, pencil-like locks. Suri fiber lacks the crimp found in huacaya, so graders focus on the luster and the lock structure rather than the degree of wave when classifying the quality.

What are the standard industry grades for alpaca fiber fineness measured in microns?

The industry uses the American National Standard for alpaca fiber, which classifies fineness into specific numerical ranges to standardize market value.

• 16-18 microns defines the Royal Baby grade, representing the finest and most expensive fiber available for high-end textiles.
• 18-20 microns constitutes the Baby grade, which remains highly sought after for garments worn directly against the skin.
• 20-23 microns falls into the Superfine category, providing a balance of softness and durability for everyday knitwear.
• 23-26 microns designates the Fine grade, often used for heavier items like coats or blankets where warmth is the priority.

How should a fleece be prepared and laid out before the sorting begins?

Lay the blanket flat on your mesh table with the cut side facing down, then gently shake it to dislodge loose dust. Spread the locks outward to inspect for second cuts and debris. Many people assume that washing the fleece before sorting makes the job easier, but moisture actually causes the fibers to felt together, making it nearly impossible to separate the locks cleanly. Always sort the fiber dry to maintain the integrity of the individual locks.

What are the most common impurities or vegetable matter that must be removed during sorting?

Vegetable matter consists of organic debris like hay, straw, burrs, and seeds that become embedded in the fleece while the animal grazes. These impurities are problematic because they don't break down during the scouring process and can damage carding machinery. For example, small, hooked seeds often latch onto the fiber base, requiring manual removal with your fingers or a pick to prevent them from being spun into the final yarn.

A common exception involves fine, dry dust or sand, which is often mistaken for vegetable matter. While dust is an impurity, it is technically mineral rather than vegetable. It can usually be removed by shaking the fleece over a mesh screen, whereas vegetable matter requires individual extraction. If you leave these particles in, they will significantly increase the weight of the lot while lowering its grade and market value.

How can a beginner identify and separate the different quality zones within a single fleece?

To identify quality zones, look for the finest, most uniform fiber along the mid-back and sides, which typically represents the prime blanket. The fiber near the neck and chest is often slightly coarser, while the britch area near the tail usually contains the thickest, coarsest hair on the animal.

What are the best practices for storing and labeling sorted fiber to maintain its value?

Store your sorted fiber in breathable containers in a cool, dry, and dark location to prevent yellowing and fiber degradation.

Use these moisture limits to make sure the fiber does not develop mold or mildew during long-term storage.