FDY, POY, DTY, ATY, can you distinguish these filaments? Hangzhou Futureyarn Textile Co., Ltd., a professional sewing thread manufacturer, shares this knowledge with you.

1. FDY fully drawn yarn:

Full name: FULL DRAW YARN fully drawn yarn (Taiwan called fully drawn yarn). Synthetic fiber filaments further prepared by spinning and drawing. The fibers are sufficiently stretched to be used directly for textile warping.

Conventional fully drawn yarns of polyester and nylon are all chemical fiber filaments. FDY fabrics are smooth and soft to the touch and are often used to weave silk-like fabrics. It has a wide range of uses in clothing and home textiles.

2. POY pre-oriented yarn

Full name: PRE-ORIENTED YARN or PARTIALLY ORIENTED YARN. It refers to an incompletely drawn chemical fiber filament whose orientation degree obtained by high-speed spinning is between the unoriented yarn and the drawn yarn. Compared with undrawn yarn, it has a certain degree of orientation and good stability, and is often used as a special yarn for drawing false-twist textured yarn (DTY).

3. DTY stretch textured yarn:

Full name: DRAW TEXTURED YARN. It is made by using POY as the raw yarn, which is processed by stretching and false twisting. Often have a certain elasticity and shrinkage.


4. ATY air textured yarn:

The principle is to use the air jet method to interlace the tow with air jet technology to form irregular kink loops, so that the tow has a fluffy loop-like yarn. The processed textured yarn has the properties of both filament and spun yarn, with strong wool feel, good hand feeling, and better coverage than spun yarn.

It is suitable for weaving and knitting. Using air deformation technology, it can be made into monofilament or multifilament of medium and fine denier, or core-spun wool-like, linen-like, cotton-like, etc. Processing coarse denier yarns for carpets, sofas, tapestries. A general air texturing machine can discharge four kinds of raw yarns, and the raw yarns can be monofilaments or pre-oriented yarns. The monofilament fineness of general textured yarn is lower than 2.8 DTEX ( 2.5D ). In order to increase the number of loops on the yarn, the oil content of the raw silk should be low.

Physical properties Air-textured yarn is superior to the original yarn before deformation in terms of bulkiness, air permeability, gloss and softness. The fineness is 10-15% higher than that of the original yarn, and the shrinkage in boiling water is maintained at about 3%, but the strength is reduced by 40%, because only a small part of the monofilament is stretched, but it bears the bearing capacity of the entire tow.