the stracture of ATY yarn
The configuration of ATY consists of two parts: one is the surface loop part of the yarn and the other is the core part.
The ATY surface is made up of a number of loops, and the aggregate shapes and sizes of the loops vary. However, there is a certain geometric feature for a thread, that is, the maximum height H perpendicular to the core yarn and the maximum width W parallel to the core yarn. Therefore, the thread loops can be divided into three categories:
H/W 1 is called "circle";
H/W < 1 is called "half circle";
(3) H/W < 0.5 is called "arc".
ATY surface coil shape determines its appearance, feel, fluffy, etc., and ATY core yarn structure determines most of its physical properties. The structure of ATY yarn is quite complex, which is mainly composed of parallel yarn (similar to untwisted yarn), cross-twist, network and similar ply yarn. Among them, the interlacing and intertwist carry out the whole yarn core, some of the single yarn and the bundle of yarn intertwist, some of the bundle of yarn and the bundle of yarn intertwist, several kinds of forms appear alternately, mix appear, constitute a complex yarn core structure. ATY yarn body structure generally vary with different processing conditions, even in the same conditions, the frequency of the occurrence and several deformation form and no obvious regularity, that is because, in the air deformation processing, make the deformation of filament power - air jet flow field itself is an irregular eddy current field, the energy distribution of rapidly changing, thus driving the strips for irregular movement, which is the structure and properties of ATY one main reason of poor repeatability.
Delta air variable yarn four core yarn form
Network wire, deformation wire, air deformation wire
In the spinning process of chemical fibers, each strand is not a single strand but a complex strand composed of 15~100 very fine individual strands. If the strips are blown loose by compressed air during the spinning process and they rotate and twist with each other to form a network, they will become a network filament. This kind of silk strength is high, weaving does not need to add twist sizing, dyeing and finishing is not desizing treatment, it is also known as "free silk". The wool-like fabric made of network silk feels especially good.
After the processing and spinning of chemical fibers, the silk or chemical fiber yarns that have undergone deformation treatment (such as strong twist, false twist, non-stretching deformation, etc.) become deformed silk. Such as strong nylon silk, bulky acrylic yarn.
Air - textured yarn, also known as ATY, is a kind of synthetic filament. It is the use of compressed air on the chemical fiber filament for air injection deformation and make the outer ring local formation of small ring, and then make it fracture after the formation of a number of end exposed outside, so as to close to the use of short wire spinning in accordance with the conventional method of "yarn". At present, polyester, polypropylene, nylon, viscose fiber, vinegar fiber and other air - textured yarn. Air - textured yarn can be used to produce spun silk, cotton - like or wool-like fabrics.