An experimental study and model development of poly(ethylene terephthalate) yarn morphology

Yıldırım, Kenan; Ulcay, Yusuf

doi:10.1515/epoly-2013-0068

Cited by 7 publications

(3 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…POY PET yarn contains a significant non-oriented amorphous phase, an oriented amorphous phase, and a minimal crystalline structure. In contrast, textured yarns primarily consist of an oriented amorphous phase and a crystalline phase, with negligible non-oriented amorphous regions [85].…”

Section: Further Research In the Field Of False-twist Texturingmentioning

confidence: 99%

A Review on False-Twist Texturing

Ortega,

Saynisch,

Yurtseven

et al. 2024

Fibers

View full text Add to dashboard Cite

The annual demand for fibres continues to rise worldwide. Consequently, more and more fibres must be produced to meet this demand, most of which are melt-spun polymeric man-made fibres. Smooth filaments made of polymers are mainly used for technical applications in industry. For use in clothing or home textiles, for example, a texturing process is used to give the filaments a crimp and thus a feel like that of natural fibres. In this state, they can be processed together with natural fibres and used in textiles. Partially oriented yarns (POY) are of great importance in texturing. The yarns are mainly crimped with the help of the so-called false-twist texturing process (FTTP). Since POY accounts for about 60% of the melt-spun filament yarn produced worldwide, the FTTP is the most important texturing process in the textile industry. In this paper, the main components of false-twist texturing (FTT) machines are explained, along with the state of the art and research for each component and its influence on the process. Relevant patents are discussed, as well as process optimisation techniques, innovative polymers, and yarn types recently used in FTT, followed by a conclusion and an outlook for the process.

show abstract

Section: Further Research In the Field Of False-twist Texturingmentioning

confidence: 99%

A Review on False-Twist Texturing

Ortega,

Saynisch,

Yurtseven

et al. 2024

Fibers

View full text Add to dashboard Cite

show abstract

“…In contrast, textured yarns primarily consist of an oriented amorphous phase and a crystalline phase, with negligible non-oriented amorphous regions. [86] The effects of different cross-sectional shapes and linear density values on the characteristics of PES flat and textured yarn were investigated. After the texturing process, there was a tendency for the yarns to exhibit increased tenacity values and decreased breaking elongation values.…”

Section: Further Research In the Field Of False-twist Texturingmentioning

confidence: 99%

A Review on False-Twist Texturing

Ortega,

Saynisch,

Yurtseven

et al. 2024

Preprint

View full text Add to dashboard Cite

The annual demand for fibres continues to rise worldwide. Consequently, more and more fibres must be produced to meet this demand, most of which are melt-spun polymeric man-made fibres. [1] Smooth filaments made of polymers are mainly used for technical applications in industry. For use in clothing or home textiles, for example, a texturing process is used to give the filaments a crimp and thus a feel like that of natural fibres. In this state, they can be processed together with natural fibres and used in textiles. Partially oriented yarns (POY) are of great importance in tex-turing. The yarns are mainly crimped with the help of the so-called false-twist texturing process (FTTP). [2] Since POY accounts for about 60 % of the melt-spun filament yarn produced world-wide, the FTTP is the most important texturing process in the textile industry [3]. In this paper, the main components of false-twist texturing (FTT) machines are explained along with the state of the art and research for each component and its influence on the process. Relevant patents are dis-cussed as well as process optimisation techniques, innovative polymers and yarn types recently used in FTT, followed by a conclusion and an outlook for the process.

show abstract

“…The yarn morphology and structure of polyethylene terephthalate (PET) yarn are affected by heat treatment to remove stress in the filament. 10–12 Stress-strain, recovery behavior, dye-uptake, optical properties and thermal properties of PET yarn are all affected by heat setting parameters. 4 Annealing of PET yarn occurs above its glass transition temperature (Tg) without tension, 13,14 due to chain folding of macromolecules in the amorphous region.…”

mentioning

confidence: 99%

Influence of some knitting and finishing parameters on the snag resistance of polyethylene terephthalate (PET) knit fabric

Yibar¹,

Öğüt

Cingu³

et al. 2021

Textile Research Journal

Self Cite

View full text Add to dashboard Cite

To assess the effects of fabric take-up, yarn tension, feeder position, and yarn feeder material on the occurrence of snagging, fabrics produced with two different finishing processes, were subjected to longitudinal or transversal 100, 300, and 600 revolutions, and the degree of snagging was measured and compared afterwards with gray fabric. Our results showed that, during the knitting process, the use of ceramic yarn feeders resulted in significantly fewer snags compared with metal yarn feeders. The gray fabric, having no finishing, was fragile and easily snagged, whereas the fabric treated by a finishing process – either drying in relaxed condition (Treatment A) or under stress conditions (Treatment B) – was more resistant to snagging. Moreover, the snagging property of the gray fabric tended to increase with increasing longitudinal or transversal 100, 300, or 600 revolutions. Slight increases in snagging were also present in fabrics having Treatment A or Treatment B at the same revolutions, but the differences were not statistically important ( P > 0.05). Frequency of snags was higher when revolutions were transversal rather than on longitudinal direction. Yarn tension and feeder position had no effect on snagging degree, while fabric take-up had limited effect. For acquiring a fabric resistant to snagging, the gray fabric produced with ceramic yarn guiders during the knitting process should be subjected to drying under relaxed condition. We also suggest that quality control tests be carried out taking the results of our study into consideration.

show abstract

An experimental study and model development of poly(ethylene terephthalate) yarn morphology

Cited by 7 publications

References 30 publications

A Review on False-Twist Texturing

A Review on False-Twist Texturing

A Review on False-Twist Texturing

Influence of some knitting and finishing parameters on the snag resistance of polyethylene terephthalate (PET) knit fabric

Contact Info

Product

Resources

About