From Yarn to Sweater: Details of the Production Process

2023-04-17 15:35:12 Jiaxing Jingrui Apparel Co., Ltd. Viewd 240

The production procedure of a sweater includes: design or selection of the plate → writing the number of scares, painting flowers → yarn preparation → flat knitting machine piece → sewing plate → washing → labeling → ironing → checking and packaging. Other processes may be added in between, and sometimes the process sequence will be adjusted. The following pictures are interspersed to introduce the whole process of sweater production in detail:


1、Design or version selection


On the popularity of sweaters, the version is very important. The trend style is always changing every year, which requires designers to have a keen sense of fashion and design explosive models that follow the trend. Lack of original design ability, then you have to work on the selection of the pattern, more to the major clothing market to see, there will be unexpected gains.

2、Write scare number, draw flowers

This is the most technically demanding part of sweater production, good scare number master familiar with the mastery of sweater production methods, processes, understanding the nature of the characteristics of the yarn, functional effects, market prices, while clear cost profit calculation, a variety of operating methods to create the look, sweater effect, the advantages and disadvantages of the operation, combined with the designer's creation or sample clothes to develop the best sweater production and manufacturing process drawings.

3、Yarn preparation

After the yarn comes into the factory, we need to take a test sample to check the calibrated line density, uniformity of dryness, moisture return rate and color fastness of the yarn. The yarn is wound into a tube to meet the needs of the yarn rewind in the knitting production; the defects and impurities on the surface of the yarn are removed and the yarn is waxed to make it soft and smooth; the yarn is twisted and stranded according to the process requirements to improve the fastness of the yarn and increase the thickness of the woolen fabric. There are many kinds of yarn, each kind of yarn has its own advantages and disadvantages, as to what yarn need to choose, according to customer needs and clothing pricing requirements.

4、Flat knitting piece

According to the parameters designed in the computer, the computerized flat knitting machine automatically weaves the wool into a piece of front and back body, sleeve, collar and other garment pieces. After the garment piece comes off the machine, it must be inspected piece by piece. The inspection includes the specification, weight and appearance quality of the garment piece, and the appearance quality includes missed stitches, flower stitches, open-edge monofilament and so on. After the garment is fully retracted, the density of the garment is checked again. Only when the requirements are met can we enter the garment process.

5、Sewing plate

The sewing method is used to connect the collar, sleeves, front and back body of the garment and auxiliary materials such as buttons and pockets, so that a sweater is formed. The sewing seam of the sweater should have the corresponding stretch and strength with the body of the sweater, and the sewing thread must be the same as the raw material, color and yarn density of the wool sweater in principle.


Sweater washing, as the last key step in sweater production, directly affects the texture of the final product. The auxiliaries, temperature, bath ratio, time and other parameters used in washing must be properly selected in order to make the fabric feel softer and more comfortable, and visually more natural and clean. It belongs to the wet finishing process, is the use of animal fiber shrinkage characteristics, so that the fiber is wet heat infiltration, scale expansion soft, under the action of friction, performance up short pile, feel rich, improved appearance.

7、Car mark

According to the customer's demand, the main mark, side mark and wash mark of the trademark brand are put on the garment, and the hangtag is hung.


Ironing and shaping

Put the sweater into the corresponding size of the ironing board and iron it on the ironing bed to make the sweater shape, keep the style characteristics, smooth appearance and comfortable hand feeling.

9、Check and repair and packing

The main purpose of checking and mending sweater is to check whether there are uneven stitching, missing stitches, broken stitches, uneven stitching (such as chicken heart tip is not pointed, left and right asymmetry), dirty work and other defects. In the process of patching, a small amount of defects that do not belong to the scope of return, such as oil stains that can be removed, residual grass clippings, desewing, etc. can generally be repaired at any time. Finally, the sweater that has passed the inspection and repair is packaged.

This is the whole process of producing a sweater.