#Spinning

2019-01-11

The long view for ring spinners

Ring spinning machines are getting longer. And that’s a trend that is noticeable in some markets, where ringframes run to as many as 2,000 spindles – or about 70 meters in length. Even with good human eyesight capable of reaching 5,000 meters, it’s still not possible to have a total overview of end-breaks along the full extent of the frame. Only an automated system can monitor if the spindles are all operating correctly.

USTER® SENTINEL is the key to optimized yarn production

Since normal walking pace is about 4,000 meters per hour, an operative would typically need about one minute to arrive at an end-break at the last spindle on the frame. So, the spindle could be easily back in action again within two minutes – assuming, of course, that the operative knows exactly where to go…

Ring spinning optimization

It’s a fact that high-performance potential and enormous ring-spinning machine capacity are worthless if spindles are at a standstill because of end-breaks. USTER® SENTINEL is the answer: its bobbin build-up report is the key to optimized yarn production. The system’s unmatched detection of end-breaks provides the basic platform. USTER® SENTINEL guides machine operators straight to spindle breaks, through clear and simple indications by red light dots.

End-break levels are a key indicator of ring spinning performance, so USTER® SENTINEL’s intuitive bobbin build-up report includes every parameter influencing end-breaks. Clear visuals point to exact reasons for breaks, making optimization easy. Spinners can then make the required improvements, focused on ambient conditions, wear of mechanical parts and machine speed.

With real-time performance information, USTER® SENTINEL offers mills the data to raise yarn production efficiency to the next level. Its easy-to-use software gives a rapid, tailor-made overview of machine performance, highlighting exactly the most relevant production and laboratory data. An attractive feature is the real-time information on energy consumption. Only with real-time data can mills take the opportunity of immediate optimization.

The real difference

Combining this total control of end-breaks with USTER® ROVING STOP leverages the efficiency of yarn production. The instant stop of roving feed at an end-break reduces waste significantly and makes raw material usage more cost-effective. Calculations show that 70% less pneumafil waste equates to a saving of nearly 1% in raw material, based on current spinning conditions. Obviously, this makes for a shorter investment payback too.

Reduced levels of waste and uncontrolled fiber fluff prevent quality issues around neighboring spindles and along the entire machine. Better operating conditions and reduced repair times result in higher yield and fewer quality issues. Badly-performing spindles are reliably identified and other issues which often impair the spinning process – such as idle, rogue and uniquely off-quality spindles, as well as spindle slip – are all monitored for fast response.

The summit of production efficiency

Human limitations on eyesight and speed are irrelevant with USTER® SENTINEL in place – and even the multiple number of spindles in a ringframe makes no difference. Downtime is kept at the lowest possible level – an unbeatable achievement also thanks to the unique design of USTER’s ring spinning optimization system. The streamlined and uncluttered profile of the USTER® ROVING STOP is geared to optimum machine performance. The distinct compact shape ensures easy and effortless piecing access, since its sensors don’t need to be positioned too close to the ring, which also saves time and speeds up responses.

For the ultimate in quality optimization, USTER® SENTINEL is ready for connection to the Total Testing Center of USTER® TESTER 6. Here, data from all spinning processes is integrated and interpreted, providing comprehensive guidance for users to maximize both efficiency and quality.

Measure and control the fiber – optimize yarn quality

Producing consistent yarn quality is an everyday challenge – and a very difficult one. Detailed knowledge and understanding of the fiber raw material is absolutely critical to achieving the best possible quality in the yarn. To help spinners, Uster experts have put together guidelines for avoiding yarn irregularity claims, in a special edition of the Uster News Bulletin.

Uster presents novelties at ITMA Asia + CITME 2025

There’s news from Uster Technologies to be announced for the industry’s upcoming event in Singapore. The Uster 360Q universe is growing with new products, solutions and services. Innovation developments can also be recorded in the fields of man-made fiber testing and fabric inspection. Uster innovations address the industry’s trending topics as mill management and process control, optimization of delivered fabric quality and yield.

Challenges of making yarn from recycled fibers

What does it take to spin quality yarn from recycled fibers? Uster Technologies brought textile industry leaders together to discuss the role of technology, data and automation – as well as the current challenges in using recycled raw material. Experts from Rieter, Säntis Textiles, Otto Yarns, and TVU commented on the current situation and looked into the future of spinning in a panel discussion organized at Uster headquarters.

Rieter Annual General Meeting 2026: Shareholders approve all board proposals

At the Annual General Meeting of Rieter Holding Ltd. held on April 16, 2026, 342 shareholders representing 64.0% of the share capital approved all motions proposed by the Board of Directors. The shareholders adopted the Annual Report as well as the Financial Statements and Consolidated Financial Statements for 2025. They also granted discharge to the members of the Board of Directors and the Group Executive Committee for their activities in the reporting year. In an advisory vote, the 2025 Report on Non-Financial Matters was also approved.

SAHM Winding Solutions and Vandewiele Automation present integrated automation solution for winding processes

For the first time at the Techtextil trade fair in Frankfurt am Main, Germany (21 - 26 April), SAHM Winding Solutions (Hallo 12.0. / Booth 95) and Vandewiele Automation will be showcasing their combined automation expertise for industrial winding processes. Under the motto “Combining Automation. Maximizing Flow”, the two companies will demonstrate how automated package handling and robot-assisted yarn knotting can be integrated into a continuous production flow.

Temco launches a new DTY all-in-one solution

Temco introduces the DTY All-in-One Solution – a fully harmonized set of components engineered to give customers a highly stable, low maintenance and reproducible process environment. The solution reduces interruptions, extends component lifetimes and supports consistent yarn quality across all machine positions. All-in-One Solution – a fully harmonized set of components engineered to provide maintenance and reproducible process environment.

Techtextil & Texprocess 2026: Global benchmark for textile innovation – Performance Apparel Textiles takes centre stage at the opening

With 1,700 exhibitors from 54 countries, Techtextil and Texprocess 2026 showcase the full range of innovation within the international textile industry – from new materials and recycling technologies to finishing solutions and high-performance textile manufacturing and processing technologies. The opening press conference centred on a key theme where innovation is especially strong: Performance Apparel Textiles.

Circulose and CTA announce collaboration to enable lyocell fibers using CIRCULOSE® pulp

Circulose has announced an agreement with China Textile Academy Green Fibre (CTA) to offer lyocell fibers produced using CIRCULOSE® pulp. Producing lyocell from recycled pulp at commercial scale is an important step in making textile-to-textile recycled materials available across a wider range of textile applications.