NEXTILE FIBER is a China-based manufacturer and exporter of Polyester ITY (Intermingled Textured Yarn), also known as BSY (Bi-Shrinkage Yarn). Our ITY/BSY yarn combines polyester filaments with different shrinkage characteristics to create a distinctive fabric texture and soft hand feel after appropriate dyeing and finishing.
We supply one-step and two-step polyester ITY yarn for woven fabrics, women's fashion textiles and other applications requiring controlled shrinkage, fabric bulk and drapability.
ITY stands for Intermingled Textured Yarn, while BSY stands for Bi-Shrinkage Yarn. Both names are commonly used for polyester composite filament yarns that combine components with different thermal shrinkage properties.
ITY yarn is typically produced by combining FDY (Fully Drawn Yarn) and POY (Partially Oriented Yarn) through a controlled intermingling process.
During subsequent heat treatment, dyeing and fabric finishing, the difference in shrinkage between the filament components helps develop bulk, surface texture and a distinctive fabric hand feel.
Unlike conventional DTY, which obtains its crimped structure through a mechanical texturing process, ITY/BSY develops its characteristic texture primarily through differential shrinkage during fabric processing.
The final fabric appearance and performance depend on the yarn construction, processing method and finishing conditions.
NEXTILE FIBER offers ITY/BSY yarn produced through different manufacturing processes.
One-step ITY integrates the required filament formation and combination processes within an integrated production system.
This method is used to produce polyester composite yarn with defined shrinkage and structural characteristics.
Two-step ITY is manufactured by producing its component filament yarns separately before combining them through a subsequent intermingling process.
This method provides flexibility in selecting filament components and developing different composite yarn specifications.
Both methods can produce ITY/BSY yarn, but their processing conditions and finished fabric characteristics may differ.
Customers should select the appropriate construction according to their weaving, dyeing and finishing requirements.
Bi-Shrinkage Structure: Combines polyester filament components with different thermal shrinkage characteristics.
Self-Texturing Effect: Develops fabric bulk and texture during suitable thermal finishing.
Soft Fabric Hand Feel: Can produce a smooth, soft or peach-skin-like surface depending on fabric construction and finishing.
Fabric Drapability: Commonly selected for woven garments requiring a flowing appearance.
Versatile Processing: Can be considered for twisting, weaving and selected knitting applications.
Multiple Specifications: Different denier, filament and processing options are available for textile development.
NEXTILE FIBER supplies polyester ITY/BSY yarn in a variety of specifications, including:
ITY 50D/48F
ITY 80D/48F
ITY 80D/60F
ITY 100D/60F
ITY 135D/108F
ITY 160D/96F
ITY 180D/60F
ITY 180D/96F
ITY 180D/106F
Available constructions, one-step or two-step processing, luster and packing options should be confirmed for each specification.
Customers may also inquire about other denier and filament combinations according to their fabric requirements.
Polyester ITY/BSY yarn is widely considered for fashion and garment fabrics, particularly applications where fabric drape and surface texture are important.
Common applications include:
Women's dresses and skirts
Abaya and burkha fabrics
Ladies' tops and blouses
Trousers and fashion garments
Flowing woven polyester fabrics
Peach-skin-effect fabrics
Lightweight and medium-weight apparel textiles
Fabric performance should be evaluated through actual weaving, dyeing and finishing trials.
NEXTILE FIBER supplies polyester ITY/BSY yarn to textile manufacturers, weaving mills and international yarn importers.
Our product range includes different composite filament structures, one-step and two-step processing options, and multiple denier and filament combinations.
We support overseas customers with technical specification discussions, sample arrangements, packing information and export quotations.
Looking for polyester ITY or BSY yarn?
Contact NEXTILE FIBER with your required denier, filament count, processing method, quantity and destination port to receive detailed product information and pricing.
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