The horizontal bar is a relatively common woven fabric caused by poor machine adjustment and raw material quality during the production process of the circular machine, generally has two kinds of hidden horizontal strips and monofilament horizontal strips. In this paper, through the introduction of the characteristics of the circular woven fabric, the reasons for its occurrence are analyzed from the aspects of raw materials, mechanisms, machine parts and adjustment processes, and corresponding preventive measures are proposed. Causes of hidden horizontal bars and prevention and rectification measures The hidden horizontal bar refers to the phenomenon that the coil size changes periodically and the sparse unevenness appears on the cloth surface during one cycle of the machine running. In general, the possibility of causing hidden horizontal strips is small, and most of them are periodic tension unevenness caused by untimely adjustment after mechanical wear, thereby causing hidden horizontal strips. 1.1  Causes a. Due to the low installation accuracy or severe wear due to aging of the equipment, the levelness and concentricity deviation of the round cylinder exceeds the allowable tolerance. A common problem arises in that the gap between the positioning pin of the transmission large gear wheel and the positioning groove of the machine frame is too large, which causes the syringe to be not stable enough during operation, which seriously affects the yarn feeding and the retraction. In addition, due to equipment aging, mechanical wear, causing the longitudinal and vertical sway of the main drive gear plate to increase the deviation of the concentricity of the syringe, causing fluctuations in the yarn feeding tension, resulting in abnormal coil size, serious hidden strips on the fabric . b. In the production process, the shifting disc of the yarn feeding mechanism adjusts the foreign matter such as flying flowers in the slider, and the roundness is affected. The speed of the synchronous toothed belt is abnormal, and the yarn feeding amount is unstable, resulting in the generation of hidden horizontal strips. . c. The circular machine adopts a negative yarn feeding mechanism, it is difficult to overcome the shortcomings of the yarn tension difference in the yarn feeding process, and it is easy to cause the yarn to be unexpectedly elongated and the difference in the yarn feeding amount, thereby forming a hidden horizontal strip. d. The circular machine adopting the intermittent winding mechanism, the tension fluctuation is large during the winding process, and the length of the coil is easy to be different. 1.2  Preventive measures a. The gear disc positioning surface is plated appropriately and thickened, and the control gear disc is shaken between 1 and 2 filaments. Polish and polish the bottom ball track, add grease to flatten the bottom of the cylinder with a soft elastic body, and strictly control the radial movement of the syringe to about 2 wires. The sinker triangle needs to be regularly corrected, and the distance between the sinker triangle and the tail of the new sinker is controlled between 30 and 50 filaments. The triangular position deviation of each sinker is controlled within 5 filaments as much as possible, so that the sinker is retreating. Keep the grip tension consistent during the circle. b. Control the temperature and humidity of the workshop. Generally, the temperature is controlled at about 25 °C, and the relative humidity is controlled at 75% to prevent the adsorption of flying dust due to static electricity. At the same time, necessary vacuuming measures are taken to keep the sanitation, strengthen the maintenance of the machine, and ensure the operation of each rotating part. normal. c. Transform the passive mechanism into a storage type positive yarn feeding mechanism, reduce the tension difference in the yarn guiding process, and preferably install the speed monitoring device to stabilize the yarn feeding tension. d. The intermittent coiling mechanism is transformed into a continuous coiling mechanism to ensure the continuity of the fabric curling process and ensure the stability and uniformity of the coil tension. Causes of monofilament strips and preventive measures A monofilament strip refers to a phenomenon in which one or several rows of coils on the surface of the fabric are too large or too small, and the density is uneven. Monofilament bars are most common in raw materials due to raw materials. 2.1 causes a. The yarn quality is poor, and the color difference of the monofilament is such as tight silk, non-woven number of chemical fiber filament, non-colored filament or mixed yarn of different yarns, which directly leads to the generation of monofilament strips. b. The difference in the size of the bobbin is large or the shoulder and the sag are formed in the silk cake itself, resulting in uneven yarn unwinding tension and easy to produce monofilament strips. This is because the difference in the size of the bobbin will make the winding point and the diameter of the unwinding balloon different, and the variation law of the deflagration tension will inevitably have a large difference. During the weaving process, when the tension difference reaches a maximum value, it is easy to cause the yarn feeding amount to be different, resulting in uneven coil size. c. When using porous and ultra-fine denier raw materials, the thread path should be as smooth as possible. A certain yarn hook is slightly rough or the grease is solidified, which is easy to cause the single filament of the raw material to break, and the monofilament color difference will also occur. Compared with the processing of conventional raw materials, the requirements for equipment are more severe, and the fabric is more likely to produce monofilament strips. d. The machine is not adjusted properly, and the needle triangle is too deep or too shallow at some point, so that the yarn tension is abnormal, and the size of the formed coil is different. 2.2 Prevention and Corrective Measures a. To ensure the quality of raw materials, as far as possible, the raw materials of famous brand manufacturers are used. The dyeing requirements and physical indexes of raw materials are strictly required. The dyeing requirements are above 4.0, and the coefficient of variation of physical indicators is small. b. It is best to select the fixed weight cake, and the weight cake is selected to use the silk cake with the same diameter. It is found that the appearance is poor. If there is a silk cake with shoulders and sag, it must be removed. It is best to dye the whole sample with dyeing and finishing. If there is a horizontal strip, choose to change the non-sensitive color or add the horizontal strip treatment agent to eliminate or reduce the horizontal strip. c. When using porous and ultra-fine denier raw materials, it is necessary to strictly control the appearance of raw materials. In addition, it is best to clean the wire and check that the wire structure is smooth. Observe whether the weft feeder has entangled filaments during the production process. If found, stop immediately to find the reason. d. Ensure that the pressure gauges of the yarn feeding lines are the same, and use the yarn length measuring instrument to finely adjust the bending position of each triangle to keep the yarn feeding amount consistent. In addition, check whether the curved triangles of each road are worn or not. The adjustment of the bending triangle directly affects the tension of the yarn, and the yarn tension directly affects the formation of the coil. in conclusion 1. In the production of round woven fabrics, the monofilament strips are the most common due to the quality of raw materials. It is necessary to use raw materials with good appearance and good quality for the production of circular machines. 2. The daily maintenance of the machine is very important. The wear of some machine parts in the long-term operation increases the deviation of the level and concentricity of the circular machine cylinder, which is easy to cause the generation of horizontal bars. 3. During the production process, the adjustment of the needle triangle and the settlement arc is not in place, causing the coil to be abnormal, resulting in a difference in the tension of the yarn feeding, resulting in different yarn feeding amounts and horizontal bars. 4. Round woven fabrics Due to the characteristics of the coil structure, the sensitivity of the strips of different tissues is different. Generally speaking, the probability of the horizontal strips of fabrics such as jersey is relatively large, and the requirements for machinery and raw materials are compared. high. In addition, the fabrics processed with porous and ultra-fine denier materials have a higher probability of appearing horizontal stripes.
Outdoor sports have become an indispensable part of people's daily lives, and choosing suitable outdoor sportswear has become a science. Here, I will introduce the benefits of our outdoor clothing products. Sports clothing tends to be light, soft and durable. The choice of materials is the main reason for the good sales of our products. First, good quality sports clothing can greatly improve the comfort of the clothing, say goodbye to stuffy formal wear, and improve the experience and effectiveness of sports; second, good materials can reduce the risk of accidental injury or muscle damage and reduce friction and resistance during exercise. Our products use waterproof, breathable and elastic fabrics. Choosing these fabrics can better enhance the experience of wearing our products and the experience of sports, which is also related to the quality of our products.
Our products will be exported to the United States, which is one of the earliest countries to promote a healthy lifestyle. With a deep sports culture, many people participate in sports activities every year, making the United States a popular area for sportswear consumption. Our clothing products feature a fresh and simple style. Outdoor sportswear does not have too many complicated decorations, as too much decoration can reduce the sporting experience. This is also a design philosophy we adhere to, which is to keep up with fashion trends while highlighting our product style. Our clothing products not only have our own style and design philosophy, but also have many characteristics, such as warmth, moisture wicking, waterproofing, breathability, quick-drying, and anti-static properties. These properties are designed to adapt to the various effects that different changes can have on the human body. Different sports require corresponding sportswear, and wearing suitable sportswear for different sports can greatly improve the effect and experience. Casual outdoor sportswear can give people a refreshing and comfortable feeling.
Outdoor Sportswear,Sportswear Outdoor,Clothing Sportswear Outdoor,Outdoor Sportswear Windbreaker Jacket T&H INTERNATIONAL TRADING LIMITED , https://www.thonor-corp.com
