About the development of nylon colored yarn

As a synthetic fiber, nylon colored yarn has the characteristics of high strength, abrasion resistance, acid resistance, alkali resistance, high temperature resistance, light weight, warmth, good electrical insulation and resistance to mold and moth. Therefore, it has been used in many areas of the national economy Wide range of applications.

If the draft ratio of nylon colored yarn is too low, it is not easy to take advantage of elasticity. Therefore, the selection of the draft ratio should fully consider the tensile properties of different specifications of nylon colored yarn, and the best value is in the middle of the strain zone of nylon colored yarn. Larger drafting is adopted during spinning, and the micro-crimp of the nylon filament outside the yarn in a relaxed state increases, so when it is stretched by external force, the room for stretching of the core filament is increased, which increases the elongation at break and obtains In order to achieve great flexibility, it is desirable to select the larger the pre-draft multiple from the economic and practical point of view. However, an excessively large drafting ratio will increase the number of broken ends of the nylon colored yarn, which will affect the quality of the yarn and increase the consumption of raw materials, and the production efficiency will be reduced.

The excellent elasticity of nylon colored silk covered yarn is due to the tensile properties of nylon colored yarn, and its size depends on the size of the drafting ratio when covering. A larger draft ratio of nylon colored yarn is conducive to the formation of excellent elasticity and more uniform covering yarn, and when the specifications of nylon colored yarn and outsourcing nylon yarn are determined, the draft ratio can be adjusted to change the nylon colored yarn in the yarn. In order to reduce production costs.

Nylon colored yarn is rich in colors, mainly developed from nylon masterbatch with high color fastness and good temperature resistance. It has the advantages of high color fastness and meets environmental protection requirements!

The spinneret holes of the existing spinnerets used for the production of nylon fibers are circular. The fibers produced by the circular holes have a solid structure and are closely arranged. The molecules lack a hydrophilic structure, so the moisture regain is low, hygroscopicity, and easy to dye. It has poor performance, and its surface is smooth, and it is easy to form diffuse reflection when light is irradiated on the surface. Therefore, the gloss is poor and it is difficult to meet people's needs. In addition, in the existing nylon production, in order to make the nascent fiber have a specific color, the method of adding color masterbatch to the chip melt extrusion screw is usually adopted. The existing color masterbatch injection device mainly includes the chip melt extrusion screw and The masterbatch adding device is located in front of the slicing melt extrusion screw, but the existing masterbatch adding device can only work in the power frequency state, does not have the function of variable speed addition, and cannot be carried out with changes in production requirements or production conditions. The adjustment makes it difficult to control the addition of masterbatch, the color uniformity of nylon fiber is poor, and the production speed and quality of nylon colored yarn are low.

Therefore, with the development of science, we have designed a new type of nylon colored yarn production device that can improve the quality of nylon fiber. The nylon color yarn production device can inject the color masterbatch according to the actual production requirements or production status through the color masterbatch frequency conversion injector 7, and the amount of the injected color masterbatch can be adjusted according to the change of speed, which is more effective Controlling the color of man-made fibers makes the color uniformity of nylon fibers better and better. At the same time, as the production speed increases, the injection speed can be accelerated, thereby improving the production efficiency while ensuring the quality.

At present, synthetic fiber technology has also made considerable progress. Synthetic fibers are widely used in textile, clothing and other industrial production due to their good shaping effect, high strength, good elasticity, and strong wear resistance and corrosion resistance. In the production process of synthetic fiber (nylon colored yarn), the melt is ejected from the spinneret holes on the spinneret to form primary fibers, which are then processed into finished synthetic fibers through subsequent processes.