Also known as the Festival grain yarn before weaving to set the level of value caused by random section yarn cloth, which is characterized by having the appearance of uneven thickness, after setting adjustment, can develop numerous length, thickness, different pitch sizes vary rich , regarded as the kind of fancy yarn in knitted fabrics in a most kinds of cloth, can be widely used in various single cloth, elastic cloth, mesh cloth, velvet is one of the main popular among consumers.

又稱節粒紗，在織製前設定高低數值造成布面隨機節紗，其特徵是具有粗細分布不均勻的外觀，經過設定調整，可開發出眾多長短、粗細、節距大小不同的豐富變化，在針織面料的花式紗中算是種類最多的一項布種，能夠廣泛地被運用於各類單面布、彈性布、網眼布、絨布也是深受消費者喜愛主因之一。