Stretch fibres and fabrics: reaching new levels of comfort, 2015

 Published On: Nov, 2015 |    No of Pages: 62 |  Published By: Textilesintelligence | Format: PDF
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Stretch fibres and fabrics offer several performance benefits compared with their stretchless counterparts. Indeed, elastane, a fibre which was first introduced in the 1950s for use in corsetry, is now used in virtually all categories of apparel including compression garments, denim, everyday ready-to-wear garments, fashion wear, hosiery, outerwear, shapewear (shaping garments), sportswear, swimwear, underwear, waistbands and workwear as a result of consumer demand for apparel which facilitates a high level of stretch and recovery. Furthermore, several variants of elastane have recently been developed in order to meet additional performance demands relating to durability.

There have also been major advances in the development of alternative stretch fibres such as polybutylene terephthalate (PBT), polytrimethylene therephtalate (PTT) and elasterell. As a result, stretch fabric manufacturers can now choose from a broad range of fibres in order to meet specific customer demands in terms of stretch and recovery and other performance properties. This report provides a wealth of information on various types of stretch fibres and stretch fabrics, and the applications in which they are used. The report also discusses trends in supply and demand, and an overview of the key producers of stretch fibres and yarns, and stretch fabrics.
Table of Contents

SUMMARY
INTRODUCTION
TYPES OF STRETCH FABRICS
ROLES OF FIBRE TYPE AND FABRIC CONSTRUCTION IN THE PROPERTIES OF STRETCH FABRICS
WAYS OF IMPARTING STRETCH PROPERTIES TO FABRICS
Mechanical stretch
Elastomeric fibres
Elastane versus rubber
Non-elastomeric fibres with inherent stretch
Elastolefin fibres
Stretch polyester fibres
Yarn crimping
Air-jet texturing
False-twist texturing
Knife edge texturing
Knit-deknit texturing
Stuffer box texturing
DEVELOPMENT OF STRETCH FIBRES
Elastane
Stretch polyesters
Polybutylene terephthalate (PBT) and polytrimethylene terephthalate (PTT)
Elasterell
CHARACTERISTICS OF STRETCH FIBRES
Elastane
Polytrimethylene terephthalate (PTT)
Polybutylene terephthalate (PBT)
Elasterell
PRODUCTION OF STRETCH FIBRES
Elastane
Solution dry spinning
Polybutylene terephthalate (PBT) and polytrimethylene terephthalate (PTT)
Elasterell
INCORPORATING ELASTANE IN TEXTILES
Working pure elastane yarns into fabrics
Incorporating elastane in bicomponent or combination yarns
SUPPLY AND DEMAND FOR ELASTANE FIBRES
Supply of elastane fibres
Demand for elastane fibres
TESTING OF STRETCH FABRICS
Elongation at load
Force for elongation
Recovery after load
APPLICATIONS OF STRETCH FABRICS
Activewear
Compression garments
Cosmetotextiles
Everyday ready-to-wear garments
Fashion wear
Hygiene and personal care products
Outdoor apparel
Seamless garments
Shapewear
Workwear
Other applications
KEY PRODUCERS OF STRETCH FIBRES AND YARNS AND THEIR PRODUCTS
Asahi Kasei: Dorlastan and Roica
Roica
DuPont: Sorona
Fulgar: Evo
Hyosung: creora and Xanadu
creora
Xanadu
Indorama Industries Limited: Inviya
Invista: Lycra
Manufacturing facilities
Blending Lycra with other fibres
Variants of Lycra fibre for apparel
Lycra HyFit for personal hygiene applications
Nylstar: Meryl
Unifi: Reflexx
XLAnce Fibre Italia: XLA
Yantai Tayho Advanced Materials: Newstar Spandex
Zhejiang Huafon Spandex: Qianxi
KEY PRODUCERS OF STRETCH FABRICS AND THEIR PRODUCTS
Asahi Kasei: Finex and Stretch Energy
Finex
StretchEnergy
Brugnoli: stretch fabrics
Apparel
Beachwear
Sports apparel
Underwear
Carvico: warp knitted fabrics
Darlington Fabrics: warp knitted fabrics
Dogi International Fabrics and Elastic Fabrics of America
Eurojersey: sensitive
Invista: Lycra fabric technologies
Jersey Lomellina: elasticised circular knitted fabrics
Lauma Fabrics: elastic fabrics and laces
Nylstar: Meryl fabrics
Piave Maitex
Polartec: Polartec Power Stretch
Schoeller Group: stretch fabrics and stretchable soft shell fabrics
schoeller-dynamic
schoeller-prestige
schoeller-WB-formula
Stretchable soft shell fabrics
Stretchtex International
OUTLOOK

List of Tables

Table 1: Properties of selected textile fibres
Table 2: Elastane content of garments
Table 3: Applications of stretch fabrics
Table 4: Roica: fibre variants, 2015
Table 5: Hyosung: annual production of elastane, 1992-2014
Table 6: creora: fibre variants, 2015
Table 7: Development of Lycra, 1958-2014
Table 8: Variants of Lycra fibre technologies, 2015
Table 9: Nylstar: varieties of Meryl stretch yarn, 2015
Table 10: Lycra fabric technologies, 2015

List of Figures

Figure 1: Elastane fibre
Figure 2: Wrapped or covered yarn containing elastane
Figure 3: Core-spun yarn containing elastane
Figure 4: Core-twisted yarn containing elastane
Figure 5: Interlaced yarn containing elastane
Figure 6: Sorona production chain
Figure 7: 2D and 3D versions of Finex

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