What are the technological processes of knitted garment fabrics?

Update:07 Jun 2021
Summary:

  Knitted garment fabric technology, knitted garme […]

 

Knitted garment fabric technology, knitted garments are mostly made of cotton and chemical fiber cotton yarn, which are soft, elastic, breathable, sweat-absorbent, and comfortable to wear, such as sportswear and obscene clothing. As a garment, knitted garments not only have the commonalities with woven garments, but also have their characteristics.

Process flow:

   spinning → knitting → cloth inspection → cutting → sewing → ironing → inspection

1. Spinning

  The purpose of spinning is to wind the cotton yarn into the factory into a package with a certain structure and specifications, which is suitable for knitting production. In the spinning process, it is necessary to eliminate some defects on the yarn, and at the same time make the yarn have a certain average tension, and perform necessary auxiliary treatments on the yarn, such as waxing, oiling, etc., to improve the knitting performance of the yarn. Improve production efficiency and improve product quality.

2. Compilation

  Knitting is a process in which yarns are organized into coils of yarns to form a fabric through a loom. This is also the fundamental difference between knitted garments and woven garments.

  Weaving methods can be divided into two categories: weft knitting and warp knitting. Most of the fabrics used as knitted garments are weft knitting. Weft knitting is to feed one or several yarns into the working needles of the knitting machine from the weft direction, so that the yarns are sequentially bent into loops and stringed to form a weft knitted fabric. The machine used to knit this kind of knitted fabric is called a weft knitting machine. Weft knitting has greater adaptability to the types and thread density of processed yarns, and the varieties of knitted fabrics produced are also very wide. There are many kinds of weft knitted fabrics, which can be woven into gray fabrics for inner and outer clothing of various organizations, and can be woven into single-piece forming and department forming products. At the same time, the weft-knitting process and machine structure are relatively simple and easy to operate. The production efficiency is relatively high, therefore, weft knitting has a relatively large proportion in the knitting industry.

There are many types of weft knitting machines, which are generally distinguished by the number of needle beds, the form of the needle beds, and the types of needles used. Warp knitting is made by arranging one or several groups of parallel yarns on the knitting needles and knitting them in the longitudinal direction at the same time. The machine used to knit this kind of knitted fabric is called a warp knitting machine. Generally, warp knitted fabrics have less dispersibility and extensibility than weft knitted fabrics, and their structure and shape are not disorderly. They are also widely used. In addition to producing clothing fabrics, they can also produce mosquito nets, curtains, etc. Lace decorative fabrics, medical fabrics, etc., warp knitting machines can also be distinguished by needle bed and knitting needle type.

3. Cloth inspection

Because the quality of the grey cloth is directly related to the quality and output of the finished product, it is necessary to check whether the number of horses, size, density, batch number, and linear density meet the requirements according to the cutting cloth ingredient list before cutting. Once the inspection is carried out, all kinds of defects that affect the quality of the finished product, such as stains, missing needles, holes, oil stains, etc., must be marked and quality recorded.

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