Zoological information, Habitat and Fibre production
Alpacas are domesticated animals and unlike Vicuña they are pretty friendly and peaceful.
The Scientific name of alpaca is Vicuña pacos, and they belong to the family of camelids.
The average lifespan it holds is of 15-20 years.
They are native to the high Andes mountains, living at high altitudes and in temperate regions in Peru, Bolivia, and Chile.
Among these countries, Peru holds the majority of the world trade for producing alpaca hair.
The amount of fibre obtained per animal is around 3-5 kg as it produces single coated fleece.
The annual production of alpaca hair fibres was of 4000-6500 tons during the year 2015.
In a year, alpaca can produce 4-5 times more hair than a cashmere or pashmina goat.
Types of Alpaca fibres
Huacaya and Suri are the two breeds of Alpaca, and each produces different fibres, and the cross breeds of these two species are known as Huarizo and Misti.
Approximately, there are 3 million alpacas worldwide with 94% living in South America. The worldwide population of the alpacas is made up of 93% huacaya alpaca & 7% suri alpaca.
The Huacaya breed produces a full coat that appears round, wooly, crimped, short, and dense.
The Suri breed offers hair like long and straight dreadlocks, which is rare and carries excellent lustre.
Therefore, they are sought after in many markets and are expensive.
The huacaya fibres possess greater tensile strength and elongation at break property as compared to the suri fibres.
Since the Huacaya fibres are naturally crimped, they are elastic, thus are preferred over suri fibres for knitting.
Table 1. Physical & mechanical properties and chemical composition of areca nut fibres
Physical & Mechanical properties [2,3]
Fibre Length
200-550 mm
Diameter
20-36 µm
Linear density
0.802 tex
Elongation at break
45%
Breaking strength
11.2 cN
Tenacity
14.23 cN/tex
Chemical composition [4]
Grease
1-3%
Dust/Vegetable matter
3-10%
Yield
87-94%
Suint
1%
Features of fibre
The alpaca hair is lighter in weight, provides better insulation, higher pilling resistance and is soft and durable.
It is naturally water repellent.
It is flame resistant and odour resistant.
It is finer than cashmere, warmer than goose down fibres, softer than cotton, smoother than silk, and more breathable than the other fibre-knitted fabrics.
The alpaca hair fleece comes in more than 22 natural colours and huacaya alone can provide with 8 different natural coloured hair fibres.
It wicks moisture away and resists piling thus, making it suitable for wearing in all seasons.
Uses
It is preferably used to produce knitwear due to its outstanding natural properties.
Also, woven products include clothing accessories like shawls, stoles, rugs, etc.
It is blended with other fibres like wool, cotton, and silk to create a wider range of fabrics and other products.
The garments such as sportswear, winterwear and other fashion garments are made out of alpaca hair are reigning over different American and European fashion markets.