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Statements

Subject Item
n2:RIV%2F46747885%3A24410%2F11%3A%230000951%21RIV12-MSM-24410___
rdf:type
n7:Vysledek skos:Concept
dcterms:description
It is well known that twist has crucial influence on the mechanical properties of short staple fiber yarns. The possibilities of prediction of twist influence on the fibers orientation in the staple polypropylene yarn are discussed in this work. The main structural factors which are significant for yarn strength prediction are packing density and orientation factor. These factors are influenced by raw material properties, technology of yarn production, yarn fineness and twist (yarn twist factor). For monitoring of the influence of the twist factor on the yarn packing density, orientation factor and strength of three groups of thirteen compact polypropylene yarns of the same fineness with different twist were spun. It was found that for prediction of orientation factor it is possible to use sonic modulus of yarns and parallel fiber bundles. From packing density, yarn diameter and tangent of helix angle the orientation factors were calculated. The packing density and orientation factor were also used for prediction of yarn strength. It is well known that twist has crucial influence on the mechanical properties of short staple fiber yarns. The possibilities of prediction of twist influence on the fibers orientation in the staple polypropylene yarn are discussed in this work. The main structural factors which are significant for yarn strength prediction are packing density and orientation factor. These factors are influenced by raw material properties, technology of yarn production, yarn fineness and twist (yarn twist factor). For monitoring of the influence of the twist factor on the yarn packing density, orientation factor and strength of three groups of thirteen compact polypropylene yarns of the same fineness with different twist were spun. It was found that for prediction of orientation factor it is possible to use sonic modulus of yarns and parallel fiber bundles. From packing density, yarn diameter and tangent of helix angle the orientation factors were calculated. The packing density and orientation factor were also used for prediction of yarn strength.
dcterms:title
Fiber orientation and strength of staple yarns based on the acoustic and initial modulus Fiber orientation and strength of staple yarns based on the acoustic and initial modulus
skos:prefLabel
Fiber orientation and strength of staple yarns based on the acoustic and initial modulus Fiber orientation and strength of staple yarns based on the acoustic and initial modulus
skos:notation
RIV/46747885:24410/11:#0000951!RIV12-MSM-24410___
n7:predkladatel
n8:orjk%3A24410
n4:aktivita
n18:P
n4:aktivity
P(1M0553)
n4:dodaniDat
n10:2012
n4:domaciTvurceVysledku
n11:8888825 n11:8180989 n11:5430755
n4:druhVysledku
n22:D
n4:duvernostUdaju
n15:S
n4:entitaPredkladatele
n13:predkladatel
n4:idSjednocenehoVysledku
199574
n4:idVysledku
RIV/46747885:24410/11:#0000951
n4:jazykVysledku
n20:eng
n4:klicovaSlova
yarn; initial modulus; acostical modulus; fiber orientation
n4:klicoveSlovo
n5:fiber%20orientation n5:initial%20modulus n5:yarn n5:acostical%20modulus
n4:kontrolniKodProRIV
[B18AD75DFB5E]
n4:mistoKonaniAkce
Casablanca Morocco
n4:mistoVydani
Casablanca, Morocco
n4:nazevZdroje
ITMC 2011 3rd Edition of the International Conference on Intelligent Textiles & Mass Customisation
n4:obor
n19:JJ
n4:pocetDomacichTvurcuVysledku
3
n4:pocetTvurcuVysledku
3
n4:projekt
n21:1M0553
n4:rokUplatneniVysledku
n10:2011
n4:tvurceVysledku
Pivoňková, Dagmar Křemenáková, Dana Militký, Jiří
n4:typAkce
n17:WRD
n4:zahajeniAkce
2011-01-01+01:00
s:numberOfPages
6
n12:hasPublisher
ESITH Casablanca, Morroco and ENSAIT Roubaix, France
n3:isbn
978-1-61284-952-2
n9:organizacniJednotka
24410