Knitted Apparel Process

knitting clothing Most of them are made of cotton and synthetic cotton yarn. They are characterized by softness, elasticity, breathability, sweat absorption and comfortable clothing, such as sportswear and underwear. Knitted apparel, as a common garment, has its own characteristics as well as woven fabrics. Process flow: spinning, weaving, cloth inspection, cutting, sewing, heating and testing.

(1) spinning: the purpose of spinning is to make the cotton yarn in the factory into a certain structure and specification for the purpose of knitting production. In the spinning process, we should eliminate some defects on the yarn, and at the same time make the yarn have a uniform tension, and make necessary auxiliary treatment, such as waxing and oiling, to improve the knitting performance, improve the production efficiency and improve the quality of the yarn.

(two) knitting: weaving is the process of weaving yarn into thread and interwoven string by weaving machine. This is the fundamental difference between knitted garments and woven garments.

Knitting methods can be divided into two categories: weft knitting and warp knitting. Fabric Most of them are weft knitted fabrics. Weft knitting is to weft one or more yarns from the weft to the needle of the knitting machine, so that the yarns are bent in sequence and formed into weft knitted fabrics. The machine used to weave this kind of knitted fabric is called weft knitting machine. Weft knitting has great adaptability to yarn types and linear density, and the knitted fabrics produced are also very extensive. Weft knitted fabrics are of wide variety. They can be woven into various kinds of fabric for internal and external use, and can also be woven into one-piece forming and partial forming products. At the same time, weft knitting process and machine structure are relatively simple, easy to operate, and the production efficiency of machines is relatively high. Therefore weft knitting has a 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 needle beds and the types of needles. Warp knitting is made up of a group or a group of parallel yarns arranged on the knitting needle and woven along the longitudinal direction. The machine used to knit this kind of knitted fabric is called warp knitting machine. The warp knitted fabric has better dispersion and extensibility than weft knitted fabric. Its structure and shape are of better stability. Its use is wider. Besides producing fabric for clothing, it can also produce mosquito nets, curtains, lace decorative fabrics, medical fabrics, etc. warp knitting machines can also be distinguished by needle beds and needle needles.

(three) cloth inspection: as the quality of grey cloth is directly related to the quality and output of the finished products, it is necessary to check whether the number, size, density, batch number and line density meet the requirements according to the cloth cutting list. When checking the cloth, the fabric must be inspected one by one according to the standards. All kinds of defects that affect the quality of the finished products, such as coloured flowers, needle leakage, holes and oil stains, must be marked and recorded.

(four) tailoring: Knitted garment The main process of cutting is: cutting material, borrowing defects, drawing, cutting and binding. Borrowing defects is an important part of improving product quality and saving materials. It is possible to borrow defects on gray fabric as far as possible during the process of cutting materials. Knitted fabrics are cut according to meridian mesh accessories. Generally, tailoring is used for trimming. There are commonly used flat sleeves, mutual sleeves, inserts, splicing sleeves, and split sleeves.

Knitted fabric should pay attention to the following items in cutting: (1) do not use folding marks and printing edges to use the obvious parts of clothing. (2) do not use taper hole marks in the tailoring so as not to affect the appearance of the garment.

(five) sewing: the existing sewing technology and equipment in China's knitting industry are mainly sewing machines with medium and high speed sewing machines (commonly known as "flat cars"), middle and high speed sewing machines (commonly known as "Ke Ke cars"), and sewing machines.

Since knitted fabric is made up of coil sleeves, the edges of the cutting edges are easy to take off. Therefore, we should first sew the edges of the clothing pieces (commonly known as "edge") and then sew them with sewing machines. Sewing machine and sewing machine are the main types of sewing knitted fashion. In the sewing process, we should generally pay attention to the following key points. The 1. stitch track is due to the longitudinal and lateral extension of the knitted fabric, i.e. the elasticity and the edge coil's easy to strip off. Therefore, the stitching of the sewing knitted fashion should meet: (1) the stitch should have the tensile strength and strength that is suitable for knitted fabric. (2) stitches should be able to prevent the fabric from being broken. (3) properly control the density of seam. For example, the stitching density of thick fabric sewing machine is controlled at 9~10 pin /2cm, the stitching density of stitch sewing machine is 6~7 needle /2cm, the stitching density of thin fabric sewing machine is controlled at 10~11 pin /2cm, and the stitching density of sewing machine is 7~8 pin /2cm. 2. stitch general cotton knitted fabric adopts 9.8tex&time4 or 7.4tex&time3 pure cotton and polyester cotton blended yarn, and chemical fiber knitted fabric adopts 7.8tex&time2 elastic nylon yarn and 5tex&time6 nylon line.

The following quality requirements are required for sewing: (1) combed cotton yarn should be used for sewing pure cotton thread (suture) with high strength and evenness. (2) the suture should have some elasticity to prevent breakage during the sewing process. (3) suture must be soft. (4) the suture must be smooth and smooth, so as to reduce the obstruction or friction of the suture line slot and pinhole, and avoid defects such as broken line and uneven stitch tension. 3. sewing needles are also called sewing needles and machine needles. In order to perfect stitches and sewing materials, suture needles must be selected.

(six) ironing: knitted garments are made smooth by appearance and size. When the iron is pressed, the lining plate is inserted into the garment to make the product maintain a certain shape and size. The size of the lining board is slightly larger than that required by the garment, so as to prevent the size of the liner from being too small after retraction. The temperature of the ironing is generally controlled between 180 and 200 degrees.

(seven) finished product inspection: the finished product inspection is a comprehensive inspection before the product, including the appearance quality and the internal quality two big items. The appearance inspection content has the size tolerance, the appearance flaw, the seam fastness and so on. The internal testing items include fabric unit area weight, color fastness, shrinkage rate and so on.