Comportamento das principais características tecnológicas da fibra do algodão BRS 200 Marrom, armazenada em duas microrregiões paraibanas.

Abstract

The market of the cotton colorful comes growing in Brazil,where in the state of the Paraíba he is being produced in commercial scale with participation of small producers, which comes on average receiving from 30 40% more for kilo of this cotton in relation to the fíber of white color. The productive chain of the same already is a mark of the state, counting on some industries of confections commanded for the "Natural Fashion" and on market guaranteed for the Europe and other regions of the world. Knowing itself that the storage objectifying the conservation of the fíber with quality is of great importance in its productive chain, mainly for the industries, with technological characteristics that a comfortable product supplies to the final consumer, the present work was developed to evaluate the effect of the storage on the technological characteristics (length, uniformity, short staple fíbre index, maturity, micronaire, allonge, resistance, reflectance and degree of yellowing) of cotton BRS 200 Brown, in two paraibanos cities (Campina Grande and Patos) during 27 months (0, 3, 6, 9, 12, 15, 18, 21, 24 e 27).After the characterization of staple fibres, these had passed for a packing up process and had been distribuídas for the storage in the two places. The used statistical delineation was entirely casualisado, in factorial project 2 x 10 + 5 repetitions, for the factors local and time of storage the significant averages of the factors had been compared by the test of Tukey and by means of the results it concludes that: the time and the Place of storage influence in the characteristics of the fíber of cotton BRS 200 Brown; throughout the storage time +b tends to increase and the reflection degree to diminish; the cotton stored in Patos kept quality of the fíber better how much to +b, reflectance, index of short staple fibres and maturity and in Campina Grande to micronaire and allonge; for the characteristics resistance and commercial length it had equality statistics for the two places of storage; micronaire tends to increase, that is the fíber fhickened the measure that increased the storage time; a classification of type of the cotton was not possible, therefore not yet it exists standards of classification of the cotton colored, being necessary an adaptation of the diagram of Hunter for the attainment of these values.