Prediction of polypropylene yarn properties
Result description
The models for prediction of polypropylene yarn packing density and strength are described. These models are based on the characteristics of fibers and yarns and also on the technological and material parameters of yarns. Groups of polypropylene yarns were spun in the pilot plant from the smallest to the greatest possible twist factor. Polypropylene fibers with different fineness, strength and deformation at break were used for yarn production. Radial and effective packing density were measured based onyarn cross-section analysis. For prediction of yarn packing density Neckar model was used. For prediction of yarn strength the fiber bundle strength, fiber elongation factor, yarn packing density and fiber orientation factor can be used. While studyingthe effect of the twist coefficient on the strength of polypropylene yarn the mechanism different from cotton yarn strength was found. Influence of fiber fineness on yarn packing density and strength was illustrated, too.
Keywords
Inter fiber slippingOrientation factorStrengthTwist factorYarn packing density
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Prediction of polypropylene yarn properties
Original language description
The models for prediction of polypropylene yarn packing density and strength are described. These models are based on the characteristics of fibers and yarns and also on the technological and material parameters of yarns. Groups of polypropylene yarns were spun in the pilot plant from the smallest to the greatest possible twist factor. Polypropylene fibers with different fineness, strength and deformation at break were used for yarn production. Radial and effective packing density were measured based onyarn cross-section analysis. For prediction of yarn packing density Neckar model was used. For prediction of yarn strength the fiber bundle strength, fiber elongation factor, yarn packing density and fiber orientation factor can be used. While studyingthe effect of the twist coefficient on the strength of polypropylene yarn the mechanism different from cotton yarn strength was found. Influence of fiber fineness on yarn packing density and strength was illustrated, too.
Czech name
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Czech description
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Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JJ - Other materials
OECD FORD branch
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Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Vlakna a Textil
ISSN
1335-0617
e-ISSN
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Volume of the periodical
19
Issue of the periodical within the volume
1
Country of publishing house
SK - SLOVAKIA
Number of pages
7
Pages from-to
14-20
UT code for WoS article
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EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
JJ - Other materials
Year of implementation
2012