Production Of Knitted Large Circular Knitting Machine For Sweater Fabrics

The sweater industry is an industry with great potential for development. With the change of people's lifestyle and the pursuit of comfortable and personalized clothes, the sales prospect of sweaters is promising.
       
Because the knitting sweater processing industry is a labor-intensive industry, relatively cheap labor resources make our knitting sweater export have a competitive advantage in price. Coupled with the improvement of domestic processing level, China has become a real exporter of knitted sweaters. In recent years, with the introduction of various computerized flat knitting machines abroad, sweater manufacturing enterprises have no longer been difficult to produce sweaters with their own characteristics.
 
But in production and processing, it is necessary to link the clothes and sleeves with the looper, and this link depends entirely on the pick up machine, the eye to the needle, and the gaze of the high quality products in the market, making this link a bottleneck for the sweater processing enterprises.
       
Therefore, improving sweater production efficiency, product quality and added value, and striving to enter the middle and high-end market of international woolen knitted apparel at an early date is always the direction for all sweater enterprises to strive for.
       
Zhejiang Yuxi Knitting Co., Ltd. is a company specializing in the production of all kinds of cotton, polyester and cotton, all polyester products, such as Jersey, spandex, cotton wool, pearl velvet, etc.
 
In view of the present situation of sweater industry, the company produces new fabrics with good elasticity, softness, smoothness, breathability and moisture permeability. Through the use of raw materials, organizational structure, process design and finishing technology, the company has developed a series of elastic sweater fabrics. The product is similar to the ordinary sweater, and can be cut and processed to avoid the looping process and greatly reduce the time of sweater processing. Because it is fabric production, it can be used billet dyeing method, can reduce processing costs. At the same time, printing and other subsequent processing can be done on this fabric, so that the product can match the sweater produced by the flat knitting machine.


Raw material application
      
Yuxi knitting company widely uses raw material staple yarn, and has different spinning methods and blending ratio of various specification components. First of all, it should be decided according to the effect of application style and customer requirements, and new spinning can be made by optimizing contrast. For example, air-jet spun yarns are stiff, uniform, smooth and short haired. Raw materials are made of PTT/ viscose fiber, wool / nylon / viscose fiber with different proportions, so that the fabric has warmth retention, softness, memory and functional requirements.


Process design of organizational structure
      

There are many styles of sweater fabrics in market flat knitting machines, and the knitting needles and raw materials are applied in the 8~12 needle / inch. The Yuxi knitting company tried to apply the production on the large circular knitting machine, adjusting the equipment from the needle to the knitting needle, the triangle, and so on, so that the fabric has a special style with fine thickness and good thermal insulation. At the same time, the fabric has a vertically and horizontally flexible process, showing a low-key luxury design concept.


Finishing technology update
       

Sweater fabric requires higher pilling (> 3 grade), and ordinary round machine fabric can not meet the requirements. Therefore, the company focused on tackling key problems, and through 2 different processing methods, the pilling index reached the designated level of the customer.
(1) using alkali reduction to achieve the purpose of removing short hairs.
(two) soft treatment combined with pilling finishing enables fabric feel and anti pilling to meet customer requirements.
The selection of finishing process is mainly based on customer's consideration of fabric style and cost. For fabrics with double color effect, one bath two step process and two bath process are needed. Dyeing equipment is used alternately under high temperature and high pressure and normal temperature and atmospheric pressure. The pilling effect depends on the customer's opponent's style.


Design and application of elastic sweater fabric in clothing
       

Due to the development of sweater clothing to fashion and multi-function, sewing machine combines knitting and sewing machine. With a little bit of rib application, relative splicing, double color effect application, the fabric is simple and clear, and underwear is worn outside.
       

Elastic sweater fabric blended varieties are diversified, door width is 130~160cm, weight is around 200~300g/m2. In the first half of this year, these new varieties participated in the Beijing international fabric exhibition, attracting many experts. Since then, the fabric has been well received by the company's customers.