- Alpaca fiber has a very low scale height of only
0.4 and a scale frequency of more than 9 per 100 microns. Wool and
mohair have scale heights of .8 and frequency of only 6-8 per 100
microns. Alpaca fiber is as fine as cashmere, but is much more
resilient and strong. Cashmere fiber, is defined by the Cashmere
Growers Association has a "mean diameter of 20 microns or less.
The co-efficient of variation around the mean shall not exceed 25% and
there cannot be more than 3% of the fibers by weight over 30
microns." A micron is a unit of length equal to one millionth of
a meter. Prickle factor is identified by fiber with a micron count of
30 or more. Alpaca fiber usually ranges, in adult animals from 18 to
27 microns, with the majority being around 24 microns. Alpacas are a
one coated animal and have no outer guard hair. In other wool or fiber
producing animals the guard hair is that which produces prickle. The
guard hair is coarse hair which will measure 30 microns or more.
- Alpaca fiber has no lanolin, or grease, like sheep’s
wool and can be spun right off the animal. It does not need cleaning,
except for removing vegetable matter and dirt, making it easier and
less expensive to process.
- Alpacas are usually shorn once a year in the early
spring and one alpaca will yield from three to seven pounds of fiber.
The yield is thought to be depend 50% on genetics and 50% on feeding
and care of the animal.
- Alpaca fiber is sorted by fineness and crimp and
crinkle. Crimp, or crinkle, is the regular wave formation or
corrugation found in the locks of fiber. The crimp is what makes
alpaca fiber resilient and what makes garments made from alpaca keep
their shape. It is generally believed that crimp is an indication of
density, that is, an animal which has a crimpy fleece will have a more
dense fiber and therefore a higher fiber yield.
- Alpaca fiber is strong, soft, resilient and
beautiful. Garments made from alpaca fiber practically last forever,
hold their shape, and are easy to care for, making alpaca fiber one of
the finest fibers in the world!
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