The longitude and latitude are interwoven. [Subject] After twisting, the yarn is warped into a bobbin (pan head), and the weft yarn is shaken into a bobbin, which is woven on the loom. In the 1930s, it was used for hand looms and iron wood looms. In the early 1960s, the 1511 loom was converted into a belt loom, which is still widely used. Due to the small width of the belt, the weaving methods are different, ranging from single, double, dozens of pieces, from single layer to double layer. In 1967, the research group of shuttleless weaving belt with workers as the main body in the industry successfully designed and manufactured a high-speed single shuttleless loom by itself, which realized that the weaving belt does not need shuttles, and the process is shortened, the floor area is small, and the labor productivity is improved, which is an innovation in the history of Chinese weaving belt technology.
At present, more than 90% of the market is made of cotton polyester thread or polyester cotton thread, but there are few pure cotton threads in the market, and the price is surprisingly high! Polyester cotton yarn just neutralizes the advantages of pure cotton and polyester, depending on the composition of polyester in cotton. Generally, the yarn of cotton ribbon is made by adding a small amount of polyester into cotton, so that it can have the advantages of pure cotton and polyester cotton. It is easy to wash, heat resistant, alkali resistant, moisturizing, sanitary, wear-resistant, not shrink, not easy to wrinkle, not easy to deform, not easy to stick wool, and so on! The key is that the proportion of cotton and polyester is appropriate! The identification method of pure cotton webbing and polyester cotton webbing is simply to take the cut thread and burn it. If there is any hard block, it is polyester cotton yarn containing polyester, and if it is completely reduced to ashes, it is authentic pure cotton.
If the weft needle is damaged, replace it or beat it with gauze; If the steel buckle is damaged, hit it with gauze or replace the steel buckle; The coir filament piece is damaged or the shutdown piece is damaged. Replace it with a new one. Causes of poor needle edge: uneven weft yarn thickness; The knitting needle is not properly laid, too long or too short; The pan head moves abnormally, sometimes tight, sometimes loose; The weft wheel is not round enough and deformed; The fixing pin of knitting needle is worn; Precautions: change another weft yarn; The knitting needle is longer or shorter according to the thickness of the ribbon. Generally speaking, the length of the knitting needle is just enough to remove the weft; Fix both sides of the pan head firmly, and do not let the pan head lean against the iron frame on both sides; Replace the weft wheel with a new one; Replace the fixed rod or go to processing.
Changchun special Aramid tape As an industrial product, it also has its own standard service life, which determines the length of our actual use of webbing. Generally, there are two kinds of situations at the end of use. One is that the problem of quality or external damage occurs within the service life, so it can no longer be used. The other is that Changchun Aramid tape wholesale The damage is natural. It is also inevitable. Today we will talk about the life span in detail. Aramid tape How long is the life span?
Ink printing. At first glance, ink is not very different from glue, but when glue is printed on smooth fabrics, such as wind clothing, the color fastness is generally poor, and it can be scraped off with a nail, but ink can overcome this shortcoming. Therefore, when making windbreaker, it is usually printed with ink, with bright color and vivid image. There has been a wave of head prints in the market some time ago~I don't know if you have noticed it, then the clear and ultra realistic printing can only be printed with ink in general~Sometimes you can sprinkle gold powder and silver powder on the ink, and feel that the decoration effect is better.
In the 1970s, due to the promotion of continuous ribbon dyeing and ironing machine, the processing of ribbon has developed from the traditional process of dyeing before weaving to weaving before dyeing, weaving before bleaching, ironing after processing, and the ribbon technology has entered the ranks of mechanized mass production. In the early 1980s, the industry introduced high-speed shuttleless loom, ironing machine, wrapping machine, warping machine, etc. from Switzerland, Italy and the Federal Republic of Germany, and the ribbon technology entered a new stage of development. The progress of webbing technology has brought about the upgrading of products. In 1980, the rubber ingot belt was developed, which has the characteristics of soft, light, thin, firm, small elongation, small impact force, short and flat joints.
