Key Features
- Nylon-Protected Elastic Core
The 140D spandex core provides extension and recovery force, while the nylon covering layer protects the elastic filament from direct friction during knitting and weaving operations. - Balanced Elasticity & Fabric Support
The 140D structure delivers a balance between stretch performance and fabric support, making it suitable for garments requiring controlled elasticity and shape retention.

- table Performance in Knitting Processes
The covered structure helps maintain smooth yarn feeding through guides, feeders, and needle zones under continuous machine tension and repeated loop formation conditions. - Consistent Stretch–Recovery Behavior
The interaction between the spandex core and nylon covering supports repeated deformation cycles, helping fabrics maintain dimensional stability during wearing and washing.

Customization Services
Spandex Denier Configuration
Spandex denier can be adjusted according to fabric elasticity, support force, and textile construction requirements.
01
Nylon Covering Specification Options
Different nylon filament specifications can be selected to achieve specific surface characteristics, fabric texture, and processing behavior.
02
Yarn Structure Adjustment
Covering density and yarn construction can be configured to match knitting gauge, fabric weight, and end-use performance requirements.
03
Cone Winding & Packaging Customization
Cone size, winding format, and packaging specifications can be tailored to suit customer production equipment and export logistics requirements.
04
FAQ
What is Nylon Spandex Covered Yarn 140D used for?
It is commonly used in sportswear, seamless garments, underwear fabrics, leggings, hosiery, and other knitted textiles requiring stretch and recovery performance.
What is the structure of 140D covered yarn?
The yarn consists of a 140D spandex core covered with nylon filaments, combining elastic recovery from spandex with surface stability from nylon.
Why is nylon used as the covering material?
The nylon covering layer helps protect the spandex core from friction during knitting, improves yarn stability, and supports smooth feeding through textile machinery.
How does 140D differ from lower-denier covered yarns?
Compared with lower-denier specifications, 140D generally provides higher elastic force and greater fabric support, making it suitable for fabrics requiring stronger stretch and recovery performance.
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