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The Industrial Process  

Description of Processes

1. Raw material selection

The alpaca and llama breeders (who are based in different zones of the Bolivian Highlands) bring their varying classes of fibre to out warehouses in El Alto.

2. Fibre sorting

The alpaca and llama fleeces are first graded and then sorted for fineness and colour. This operation is carried out by ladies whose skills of selection have been handed down from generation to generation.


Baby, Superfine, Adult, Coarse
(21 - 22) (24 - 25.5) (27 - 28,5) (30 - 33,0)

Color Selection:
White, Cream, Black, Brown, Grey and derivative colors a total of 16 natural colors.

3. Scouring.

The wool (fibre) scouring operation has the objective of removing the natural grease and any extraneous dust that the fleeces collect.

The wool scouring is carried out on the a large industrial machine containing 5 separate washing bowls using clean warn water and bio-degradable. Detergent leaving the fibre clean and containing no more then 0.5% of itís natural lanolin.
4. Carding and Combing.

The carding process removes a percentage of the vegetable matter and coarse hair and presents the raw material in a continuous sliver. The material is a then combed on rectilinear combs where the short fibres and the remaining vegetable matter is removed. The resultant sliver is then passed through a series of gilling operations designed to allign the fibres and make the sliver more regular. Designed to allign the individual fibres and make the sliver more regular in preparation for the spinning operation.

5. Yearn Processing.

The final product of the carding and combing operation universally know as ball tops are passed through a further series of gilling passages designed to reduce the weight of the sliver and present it in a desirable state for the yarn spinning process. This is done on the spinning frames where the sliver is reduced to its required thick ness and twisted to give the yarn strength and durability. COPROCA produces a range of yarns from 6 to 30 NM and these yarns are flyed to give the yarn further strength and durability consistent with the requirements of the client.
6. The dyeing process.

Though alpaca and llama fibre comes in a rich palette of natural shades, in order to satisfy the international fashion markets we have to dye a wide range of colours. The yarns dyeing is carried out in a pressurised vessel using Eco-friendly dyestuffs which are approved for garment manufacture.
COPROCA - Bolivia > Address: 10 Th Puerto de Ilo Av., El Porvenir Zone (El Alto) > Phone (591-2) 285-2040 > Fax (591-2) 285-0685 > La Paz, Bolivia.