Flex-Dia is a breakthrough expandable tube designed for the steaming and dyeing requirements of shrinking yarns. It is recommended for processing a wide range of fibers: Nylon, Polyester, Silk and Silk blends, Polyester and Cotton blends, sewing yarns, core-yarns, etc.

Flex-Dia eliminates two winding procedures: Yarn steaming prior to package dyeing is no longer necessary as the same results are obtained simultaneously during the dyeing process. The dyed package can then go straight to the next process, avoiding final backwinding.

The structure is engineered to allow uniform radial shrinkage along the length of the tube, providing an area for the yarn next to the tube wall to relax.

Optimal distribution of dye baths ensures even and level dyeing inside, middle, and outside of the yarn package. Tube length, top ID, and base ID remain unchanged after retraction.

Flex-Dia enables successful "transfer-tail" operation. Many sizes are available, with retraction levels up to 30%.Package density can be increased up to 30% compared to a traditional dye tube, maintaining the same package diameter.
Dyeing productivity is similar to that of plastic dye spring but without yarn compression.

our patented dye tube,
shrinks radially for perfect yarn dyeing.

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  • Flex-dia one-time use tube: Innovative system for steaming and dyeing heat-shrinkable yarns. Eliminates two winding procedures for a more efficient process.

  • Perfect yarn and time saving: Flex-dia avoids pre-steaming and reduces steps, ensuring high-quality yarn.

  • Flexibility and sustainability: Suitable for various yarn types, Flex-dia reduces environmental impact and increases productivity.