POY & FDY
The first step in producing synthetic yarn begins with the raw material known as POY (partially-oriented yarn). POY is made from chips s that are melted and extruded through microscopic holes to form a single fiber filament.
FDY that is Fully Draw Yarn is produced by a process almost similar to POY manufacturing except that the yarn is produced at higher spinning speeds coupled with intermediate drawing integrated in the process itself. This allows stabilization through orientation and crystallization. FDY yarn is produced by a continuous polymerization process.
In addition to producing raw white POY and FDY, Tepar also has the ability to offer dope dyed ( mass dyed or solution dyed) polyester for use in color rich fabrics.
False Twist Texturing & Air Jet Texturing
We draw heat and twist the continuous filament yarn to optimize various physical characteristics like bulk, strength, stretch and dye ability. Our advanced air-jet texturing capabilities and innovative texturing methods allow us to produce finished synthetics that look and feel like natural yarns, or provide products with unique and superior performance characteristics.
All types of continuous filament yarns (PES, PA, PP, Glass, etc.) as well as their forms (FDY/FOY, POY) can be processed to a large range of yarns for a wide variety of applications such as:
- Automotive
- Home Textiles & Upholstery
- Sewing threads
- Apparel
- Technical Tetxiles
Twisting
We combine filaments into yarn by twisting them together for applications such as sewing thread, home Textile , Technical textiles and apparel.
The amount of twist is an important factor in finished consumers’ goods. It determines the appearance as well as the durability and serviceability of a fabric. Fine yarns require more twist than coarse yarns. Warp yarns, which are used for the lengthwise threads in woven fabrics, are given more twist than are filling yarns, which are used for the crosswise threads. To retain the twist in the yarns and prevent any tendency to untwist or kink, the yarns are given a twist-setting finish with heat or moisture,depending upon the kind of fiber used.
The direction of twist may be observed by holding the yarn in a vertical position. If the spirals conform to the direction of the slope of the central part of the letter S, the yarn has an S twist; if they conform to the slope of the letter Z, the yarn has a Z twist.