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Effect of the Air‐Jet and the False‐Twist texturing processes on the stress‐relaxation of polyamide 6.6 yarns
Author(s) -
Manich A. M.,
Maíllo J.,
Cayuela D.,
Gacén J.,
de Castellar M. D.,
Ussman M
Publication year - 2007
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.26438
Subject(s) - polyamide , fineness , materials science , composite material , jet (fluid) , stress relaxation , relaxation (psychology) , textile , hydrothermal circulation , thermal , fiber , linear density , stress (linguistics) , twist , mechanics , chemical engineering , geometry , mathematics , psychology , social psychology , linguistics , creep , physics , philosophy , meteorology , engineering
Abstract Polyamide 6.6 multifilament yarns were converted to crimped fibers by texturing to simulate the properties of natural staple fiber yarns for textile applications. Texturing is carried out by mechanical stresses (turbulences or twisting) under thermal or hydrothermal conditions which affect the fine structure of the fiber. Two polyamide yarns with the same linear density but composed of filaments of different fineness were textured by the False‐Twist (thermal) and the Air‐Jet (hydrothermal) procedures. The influence of texturing and filament fineness on the relaxation behavior of the yarns was studied. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007