News & Insights | Textile machinery

Air-jet spinning at a new level with Rieter’s J 70

Published: July 15, 2023
Author: TEXTILE VALUE CHAIN

The new Rieter air-jet spinning machine J 70’s separately automated, independent spinning units and technologically enhanced components allow for the most effective production of high-quality yarns. Low yarn conversion costs are another advantage for spinning mill owners, in addition to the great raw material output and low energy requirements. Spinning mills are well-positioned to take advantage of the growing potential in both regular and mixed air-jet yarns thanks to the J 70.

Since air-jet yarn may be produced from a number of fibres, including cotton, polyester, and viscose, it can be used in a wide range of applications. In addition to the high productivity, the distinctive yarn properties, such as low hairiness and low pilling tendency, will support this market’s robust expansion in the years to come. The air-jet spinning machine J 70 is the best option for spinning mills since it has a low cost of conversion, uses little energy, and maximises the use of raw materials.

Autonomous spinning units and high delivery speed

Now that each spinning unit is independently mechanised and independent, maximum efficiency and flexibility are possible (Figure 2). Both natural and quality yarn breaks are fixed independently by each unit. This eliminates the need for robot waiting times. Up to 20 rotating units can simultaneously repair and reassemble ends down. This enables quick production rates.

Through the use of innovative technological components, supply speeds of up to 600 m/min are possible. Package changes, yarn insertion, and unit cleaning are all handled by four robots. In most cases, one robot per side is sufficient, but for particular uses, including shorter yarn lengths and dye packages, up to two robots can work together to facilitate seamless changes.

Air-jet spinning at a new level with Rieter’s J 70

Maximum flexibility and efficiency

The J 70 air-jet spinning machine revolutionises contemporary spinning mills with its extraordinary flexibility. It can manage up to four separate lots at once with the VARIOlot option, enabling lower lot sizes, a wider variety of yarns, and quicker delivery times. By assigning tubes to certain colours and using distinct shift reports, it is simple to manage the customizable settings for each lot.

With up to 50% less fibre loss than rivals, energy-efficient motors, improved suction, and lower air inlet pressure, the J 70 also offers significant cost savings. Additionally, the machine makes it possible to produce dye packages more quickly and without the need for rewinding after bleaching or dying.

Quality assurance

The cutting-edge Q 30A yarn clearer from Rieter is used by the J 70 to monitor quality. The sensor may now be adjusted more easily, enabling flexible changes to the cleaning limit based on quality needs. A scatter plot helps operators make educated decisions by graphically demonstrating the effect of settings on quality cuts.

A bigger measurement slot on the Q 30A reduces contamination and permits longer production cycles without breaks for cleaning. It is not necessary to modify the hardware in order to add optional functions like foreign fibre detection and weak yarn detection.

The cutting-edge Q 30A yarn clearer from Rieter is used by the J 70 to monitor quality. The sensor may now be adjusted more easily, enabling flexible changes to the cleaning limit based on quality needs. A scatter plot helps operators make educated decisions by graphically demonstrating the effect of settings on quality cuts.

A bigger measurement slot on the Q 30A reduces contamination and permits longer production cycles without breaks for cleaning. It is not necessary to modify the hardware in order to add optional functions like foreign fibre detection and weak yarn detection.

Innovative solution for a wide range of customer needs

The J70 air-jet spinning machine has a high raw material production, uses little energy, and is easy to use. In order to address the rising demand for polyester-cotton and polyester-viscose blends, it effectively creates high-quality yarns. The J 70 is a creative and affordable solution for a range of customer needs thanks to its sophisticated automation.

 

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