Jet loom is a shuttleless loom that uses jet air to pass weft yarn through the shed. Its working principle is to use air as the weft insertion medium, and use the compressed airflow generated by the jet to generate frictional traction force to pull the weft yarn, so that the weft yarn passes through the shed and achieves the purpose of weft insertion through the jet generated by the air jet.

Features:

This weft insertion method can enable the loom to achieve high speed and high yield. Among several shuttleless looms, jet loom is the one with higher speed. Due to its reasonable weft insertion method, high weft insertion rate, simple and safe operation, wide variety adaptability, low material consumption, high efficiency, fast speed, and low noise, it has become one of the new types of looms with development prospects.

Early jet looms could only produce narrow width fabrics. Due to the low speed of the weaving machine and poor fabric quality, they can only produce monochrome and simple plain weave fabrics. At present, advanced jet looms abroad have adopted a large number of advanced technologies, especially electronic and microelectronic technologies, which greatly improve the performance of jet looms while ensuring product quality.

The impact of air jet loom opening on weaving.

1. What effect does the size of the opening have on weaving?

① Large opening and high tension of the warp yarn can easily cause warp breakage;

② Increasing the warp opening can reduce the adhesion of yarn fuzz, making the yarn have good elasticity, making the warp opening clear, and reducing weft resistance;

③ Increasing the number of openings has good weft filling performance, which is beneficial for weft filling and fabric forming;

④ If the opening is too small, the inlet and outlet of the weft yarn will be blocked, which can easily cause weaving defects such as stopping, shrinking, shedding, and double weft.

2. What is the impact of open hours on weaving?

Overall, extending the opening time can improve the situation of poor warp opening at the weft group, improve the style of the fabric, and make the weft beat better. However, due to the early opening and closing of warp yarns, the arrival time of weft yarns is shortened. Therefore, weft yarns are prone to defects such as shrinkage and shedding, requiring an increase in air pressure. When weaving fabrics, such as 2/1 and 3/1, if the opening time is too late, there may be fabric cracks in the air guide part of the spring, which needs to be considered.