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ITY (Intermingled Textured Yarn) is one of the products of the SIRANG CO-operative company
(The largest producer of various types of polyester and polypropylene threads)
Here you will get familiar about this type of fiber and its production process:

ITY (Intermingled textured yarn) or self-textured yarn

ITY filaments which are also known as BSY or self-textured, refer to a group of filament yarns produced without texturizing process only by thermal treatment. Their handle is similar to the fabrics produced from textured yarns. These yarns have now found a significant share of the fabrics market, especially for women’s wear.

Their production relies on merging two filament yarns with different shrinkage properties (e.g. FDY and POY). In the customer steps, one of these yarns shrinks around the other giving rise to a soft handle similar to the textured fabrics.

The fabrics produced from these yarns can be classified into three classes:

  1. The soft handle of peach skin fabric
  2. Silky handle (scroop fabric)
  3. Santoon handle

The table of producible measures

Sirang Company is capable of melt-spinning POY microfilament yarns in the measuring range of 40-750 Dtex; the measure of each filament can reach 0.5 Denier.


  • Upholstery fabric
  • Curtains
  • Tricot fabrics
  • Sportswear
  • Veil

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