The quality of cotton fiber: a new challenge
Spinning machinery is increasingly automated and rapid. The resulting fall in processing costs means that the starting material has become the principal component in the yarn cost. In addition, the spinning process and the quality of the finished product are dependent upon the characteristics of the fiber supplied. Spinners are therefore increasingly selective, seeking the fiber that corresponds exactly to the product, at the lowest possible price. They require the most comprehensive description possible of fiber properties. The order of importance in which fiber characteristics are placed differs depending on the spinning technique used. Resistance and fineness may nevertheless be considered as priority criteria as they have a marked impact on the yam properties and on the spinning process efficiency. Fiber resistance must also increase in response to the ever faster yam-production lines. Other important intrinsic characteristics include length and uniformity of length-which have an impact on yam resistance and appearance-and maturity, on which dying is dependent. Contamination by foreign fibers, honeydew or seed coat fragments leads to defects in the yam and fabrics, and the faster the production process the more this contamination causes disruption. Synthetic fibers show good resistance. Their fineness has improved significantly and they are proving to be increasingly competitive. Unlike fibers of biological origin, they are made up of homogeneous matter. If cotton fiber is to maintain its position in the face of this competition, its characteristics-notably its resistance, fineness and cleanliness-must be improved in terms of level and homogeneity.
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| Format: | conference_item biblioteca |
| Language: | eng |
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Kasetsart University
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| Online Access: | http://agritrop.cirad.fr/392560/ |
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