Knitted fabric is a fabric made of coils interlocked with each other, is a large variety of fabrics. Knitted fabrics have better elasticity, moisture absorption and breathability, comfortable and warm, is the most widely used fabric for children's clothing, raw materials are mainly cotton, linen, silk, wool and other natural fibers.

First, the type of knitting yarn

1, Worsted yarn

Worsted yarn, also known as combed yarn, refers to the yarn spun through the combing process, including combed cotton yarn and combed wool yarn. The yarn has high parallel elongation of fiber, uniform and clean, but higher cost and higher count. Combed yarn is mainly used as raw material for high-grade fabrics and knitted products, such as fine spinning, waffle, wool sweater, etc.

2, Rough spinning yarn

Rough spun yarn, also known as rough combed woolen yarn or plain combed cotton yarn, refers to the yarn spun according to the general spinning system for carding, without combing process. Rough spun yarn has more short fiber content, poor fiber parallel straightness, loose structure, hairy, lower yarn count, poor quality. These yarns are mostly used as raw materials for general fabrics and knitted products, such as coarse spun wool fabrics.

3, Scrap spinning yarn

Waste spinning yarn is spun from textile offcuts (waste cotton) or mixed with low-grade raw materials. Yarn quality is poor, flimsy, uneven, containing more impurities, poor color, generally only used to weave coarse cotton blanket, thick flannel and packaging cloth and other low-grade woven fabrics.

Second, the index requirements of knitting yarn

1、Strip dry CV%.

2、Detail (-50%), coarse knot (+50%), cotton grain (+200%).

3, hair feather: If the hair feather is on the long side and more, the weaving is easy to take off flowers, the cloth surface is easy to pilling and pilling, the demanding cloth needs to do the de-hairing treatment.

4、Twist: knitting twist is lower than weaving twist, high twist is easy to get up pigtails in weaving, and the surface of the cloth feels hard.

5. Strength: Knitting yarn does not require high strength unless there are special requirements.

6. Foreign fiber: The standard of foreign fiber for knitted fabric is 20 per cloth.

The difference between knitting yarn and weaving yarn

1, woven yarn (now most of the arrow loom or air jet loom) refers to the processing of woven fabrics used yarn, divided into warp and weft yarn. Warp yarn is used as the longitudinal yarn of the fabric, in order to ensure the quality of the fabric surface in the weaving process to improve production efficiency, requiring high strength and good abrasion resistance. Weft yarn is used as the fabric transverse yarn, can meet the quality of the fabric surface soft characteristics on it.

2, Knitting yarn is used for knitted fabrics. The surface of the fabric requires smooth and soft to the touch. The quality of yarn requires good dryness. According to the experience in the procurement process, one of the main indicators can be tested for reference, which is the yarn twist. For warp yarns for weaving, the twist factor is usually around 400. For weft yarns and knitting yarns, the twist factor is usually around 350. Net twist factor/special.

Longxing Knitting Machines or Products