BISFA issues new test standards for cellulosic filament yarn

13 Dec '07

2 min read

BISFA – the internationally recognised authority on technical standards and test methods in man-made fibres – has issued new and updated standards on test methods for cellulosic filament yarn.

These yarns, with a wide range of uses in apparel, home furnishings and technical applications, are extensively produced and processed in Europe, where their market is currently almost 100.000 tonnes. The standards cover yarns of viscose, cupro, acetate, triacetate and lyocell.

The new standards – replacing older ones first published 10 years ago – take account of changes in technology, markets and test methods.

They provide essential guidance to companies to help them produce fibres to high and consistent standards of quality, and to provide a neutral and objective basis on which to resolve any disputes about the technical properties of fibres supplied to customers.

The new standards cover criteria such as:
•Sampling
•Commercial mass
•Twist
•Linear density
•Tensile properties
•Dip pick-up
•Boiling water shrinkage
•Fibrillation
•Statistical process control parameters
•Terminology.

This international association of man-made fibre producers was founded in 1928 under the French name of Bureau International pour la Standardisation des Fibres Artificielles, hence the abbreviation BISFA.

BISFA establishes terminology of man-made fibres for the continuous improvement of intercompany, customer and consumer communications. BISFA aims to establish technical rules for fibres and yarns for delivery conditions which have to be applied for each type of man-made fibre and which are mandatory for all members of the association.

THE INTERNATIONAL BUREAU FOR THE STANDARDIZATION

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