BENDING BEHAVIOR OF RAYON AND WOOL TYPE POLYESTER FIBERS THERMAL TREATED
Given the fact that bending rigidity influences to a great extent the product handle and considering that the market demands products with a soft, pleasant handle, one must pay a special attention to these characteristics and especially to the treatments that modify the bending rigidity. It was fou...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Editura Universităţii din Oradea
2014-05-01
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| Series: | Annals of the University of Oradea: Fascicle of Textiles, Leatherwork |
| Subjects: | |
| Online Access: | http://textile.webhost.uoradea.ro/Annals/Vol%20XV-no%20I/Art.%20nr.%203,%20pag%2015-18.pdf |
| Summary: | Given the fact that bending rigidity influences to a great extent the product handle and considering that the market demands products with a soft, pleasant handle, one must pay a special attention to these characteristics and especially to the treatments that modify the bending rigidity.
It was found that any mechanical or thermal treatment brings modifications of the bending rigidity, in terms of the fibers nature and treatment conditions. In most of the methods meant to determine the bending rigidity one must measure the amount of deflection of the fibers end in constant cross-section either under t
he action of the weight. The textile products are subjected to flexion, to repeated and frequent bending due to knotting and kinking during both the processing and exploitation. All these result in the appearance of stresses of various natures depending on the fibers type. The strains and fiber destruction as the result of these stresses depend on a series of factors related to the fibers composition and in termolecular and intra-molecular structure, their yarn count, elastic modulus, fiber flexibility, finishing procedures or products texture, etc.
Following the performed measurements, we calculated the bending rigidity for the witness samples and for thermally cured fibers; then we divided them in classes and we graphically represented their distribution in terms of the bending rigidity. |
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| ISSN: | 1843-813X 1843-813X |