Service-News

The Challenge
To better answer customer needs in a timely manner, Bishnu Texport Pvt. Ltd. decided to produce its own air covered yarns. Switching from a trading company to a manufacturing one does not come without challenges. While it improves delivery time and reduces import costs, achieving the same, or even better, quality is ambitious.

In search for the best air covering machines on the market, Bishnu turned to SSM. While cheaper alternatives were available, the company trusted that the original investment for SSM air covered machines would result in a better return on investment and better fit their motto “No compromise on quality”.

The Solution
In 2012, Bishnu acquired 15 spindles of SSM DP3-C machine for its factory located in the northern part of India, near Delhi, where temperature can vary from 3 to 45 degrees Celsius – a real challenge when producing super fine yarns of 10/10 den, polyamide and elastane. With the right air-conditioning system and the support of SSM experts, Bishnu successfully set up the machines and reached a smooth and reliable production.

In 2020, the company owned 90 spindles of SSM air covering machines XENO-AC and its brand has been recognized as high-quality air covered yarns.

The Customer's Benefits
The main advantage with XENO-AC machines is the quality of the final product. From the yarn quality to the runnability on other machines and the package appearance, everything is optimized. Bishnu and its customers have been enjoying consistent high quality for 10 years and the company’s customer base is growing.

Bishnu is currently exporting its air covered yarns to Japan and Sri Lanka and is expecting long- term business in Japan. Consequently, the company plans to expand its existing capacity of spindles of SSM air covering to 200 spindles by the end of year 2025.

For more information about SSM solutions please contact:

SSM Schärer Schweiter Mettler AG
Rütihof 8, CH-8820 Wädenswil / Switzerland
L_hc__mss--ofni, www.ssm.ch

Rieter is presenting the latest innovations in its systems, components and services at the upcoming India ITME 2022 in Uttar Pradesh (India), taking place from December 8 – 13, 2022. The company’s technology portfolio is designed to help customers succeed in markets shaped by rising energy and raw material costs.

Autoconer X6 – Key Machine for Highest Efficiency

The automatic winding machine Autoconer X6 perfectly completes the Rieter ring and compact-spinning systems. The machine serves as the final quality assurance in the ring and compact-spinning process and is key to the performance of the subsequent process stages. The Multilink system with Multilot offers maximum flexibility to handle a different type of yarn.

The latest splicer generation OZ1 and OZ2 provides an optimum splice quality based on an open prism. With only two prisms spinning mills can splice the entire spectrum of cotton yarns as well as blends. They are also used for the splicing of cotton-based elastic core yarns in combination with the Elastosplicer. The splice zone exhibits an impressive elasticity in the fabric.

Full Flexibility with Compacting Solutions

The Rieter compacting devices – COMPACTapron, COMPACTeasy and COMPACTdrum – are the right solution for every application. Spinning mills can change quickly between ring and compact yarn and offer customers a broader product range. This gives them an edge in the market.

Spin it Again: Recycling Expertise from Rotor to Ring

Rieter offers solutions for the integration of recycled raw material into yarn production to help close the textile loop and make fashion more circular. Both rotor and ring yarns can be produced with a considerable amount of mechanically recycled fibers. The result is promising: Garments made of challenging post-consumer material can be attractive for both consumers and the environment.

ESSENTIALorder – Purchasing Parts with a few Clicks

Based on existing customer information, the webshop ESSENTIALorder visualizes which Rieter machines and systems are available inside each spinning mill. It therefore offers a personalized shopping experience and facilitates order management, enabling spinning mills to optimize their internal stock levels. ESSENTIALorder is available 24 hours a day, seven days a week.

ROBOspin – the Solution for Personnel Shortages

The piecing robot ROBOspin reduces personnel requirements in the ring spinning section by 50%. The robot also attains productivity increases thanks to higher spindle speeds at equal or higher efficiency.

SSM NEO-FD for Efficient Twisting Production

SSM is presenting NEO-FD, the assembly-winding machine for precision wound packages for twisting. It meets all requirements for efficient production. The machine features the auto-doffing option and the online back-pressure system for low and high package densities. With ergonomic design and proven technology, the machine cuts maintenance and service costs to a minimum.

Temco CoolFlow Disc with Longer Lifetime

Temco’s CoolFlow texturing discs offer longer lifetime thanks to a brand-new geometry and the latest polyurethane technology. The texturing discs now generate a disc surface that operates at a lower temperature, resulting in slower ageing and abrasion. Further benefits are more stable yarn quality, higher productivity, and an overall process cost reduction.

Visit Rieter at INDIA ITME 2022 at India Expo Centre & Mart, Greater Noida, Uttar Pradesh 201306, India from December 8 – 13, 2022 in hall 10 at booth H10C11.

In the fast-paced market of synthetic yarns, answering the ever-increasing customers’ demands in a timely manner is a crucial competitive advantage. Since 2002, the synthetic yarn manufacturer TURKTEX has excelled at finding newer, better, and faster ways to satisfy its customers’ demands, almost in no time. With SSM DP5-T, TURKTEX takes its competitiveness and mission towards customers to the next level.

The independent Turkish textile company, TURKTEX, focuses on the world of synthetic yarns, and is a brand of Turkuaz Tekstil San. ve Tic. A.Ş. group. Founded in 2002, in Bursa, Turkey’s textile hub, TURKTEX has relied on SSM texturing machines from the very beginning, enabling the company to respond to customers’ demands with innovative, fast and flexible solutions.

Due to its superior products, TURKTEX is now Turkey’s leading company in the high value-added continuous filament sector, especially for polyester (PES) and polypropylene (PP) yarns. Its production portfolio includes yarns for home textiles (such as curtains, upholstery, mattress ticking and carpets), fashion, automotive fabrics as well as yarns for technical applications, outdoor and military. Besides supplying the local market, the company exports its products to more than 30 countries.

The largest portfolio to meet customers’ demands at any time
TURKTEX has the ambition to become the Amazon of yarns, that is the biggest synthetic yarn retailer. With a huge portfolio including polypropylene (PP) or polyester (PES) in divergent forms (recycled, flame retardant and more), various final yarn counts up to 2 000 denier, each available in 50 different colors, the company is on track to succeed.

DP5-T: the right solution to handle large assortments
In order to provide its huge range of yarns with short lead times, TURKTEX is dependent on reliable, fast, flexible and easy-to-use machines that are also quick and simple to maintain.

SSM machines have proved to be the perfect solution. In 2020, TURKTEX acquired the last SSM texturing machine DP5-T to help the company meet the demand in Air Textured Yarn (ATY) made of PES and PP (Fig. 1). It then invested in a DP5-FT false twist-texturing machine to drive business in the Drawn Texturized Yarn (DTY) market as well.

Today, the company stores approximately 1 000 different recipes in its SSM DP5-T machines and changes around every other second day the settings of the spindles. Any recipe can be removed and put back into production without any quality or repeatability issues. With its individual drive concept, the DP5-T makes it easy to switch between recipes, an indispensable feature for TURKTEX as it responds to the ever-changing needs of its markets.

TURKTEX is very satisfied with SSM’s support, service and technicians. Plant Manager, Mr. Ömer Efendioğlu (Fig 2.), highlights: "SSM cares about our needs and supports us from the first negotiation to the commissioning of the machine and beyond."

Flexibility, fast response and excellent quality
TURKTEX has a strong internal textile research and development department which ensures innovative products. To make these products a reality in the desired quality, the company can count on SSM. Mr. Dündar Cetin (Fig. 3), owner and technical director of TURKTEX, is convinced that it is crucial to satisfy customers' requirements immediately and without delay. He states: "Always keeping promises and ensuring excellent quality is possible for us, thanks to SSM DP5-T."

Flexibility is another critical factor. While standard batches in the industry are usually over 2 tons, TURKTEX handles many small orders, as low as 50 kg. Changing raw material and parameters can be laborious, but with the DP5-T, it is easy for operators to switch between orders.

In summary, Mr. Cetin says: "I am really very happy about the cooperation with SSM because we follow the same values with our identical slogan: Flexible, Fast, Safe."

For further information please contact:
SSM Schärer Schweiter Mettler AG
L_hc__mss--ofni . www.ssm.ch

Rieter is presenting the Autoconer X6 at the upcoming ITM 2022 in Istanbul (Turkey), taking place from June 14 to June 18, 2022, which further improves the attractiveness of the company’s ring and compact-spinning offering by completing the system. In addition, Rieter is showing the roving frame F 40 which doffs at 90 seconds only. SSM’s NEO-YW precision winder is launching into the European market while three key innovations in components are being introduced.

The Autoconer X6 is a globally recognized winding machine at the highest performance level, putting it on a par with all other Rieter machines. The winding machine serves as the final quality assurance in the ring and compact-spinning process and is key to the performance of the subsequent process stages.

The latest splicer generation OZ1 (Ne 20 to Ne 120 and finer) and OZ2 (Ne 3 to Ne 40) provides an optimum splice quality based on an open prism. When splicing cotton-based elastic core yarns, duo-core yarns and multi-core yarns, the open prisms are used in combination with the Elastosplicer. This has already been successfully introduced in vertically integrated mills.

The new Multilink system with Multilot offers maximum flexibility: Up to four ring spinning machines are linked to one Autoconer, with each ring spinning machine able to supply a different type of yarn.

With the integration of the Autoconer X6 into the Rieter system, the mill management system ESSENTIAL will open up over the coming years the potential for end-to-end transparency and optimization throughout all process steps.

The roving frame F 40 was already introduced to the market at ITMA 2019. A precise bobbin build-up in combination with a doffing time of 90 seconds only and the option of setting the drafting system electronically are convincing customers to invest in this machine in combination with Rieter systems.

SSM is presenting the NEO-YW precision winder which brings to bear SSM’s unmatched winding expertise into one easy-to-use and high-performing machine. NEO-YW will kick off its launch into the European market at ITM 2022.

Components for Higher Performance and Durability

The newly acquired Accotex and Temco brands are adding strength to the components family, which now includes Accotex, Bräcker, Graf, Novibra, SSM, Suessen and Temco. Rieter is presenting three key innovations at ITM.

Accotex’s new top and bottom aprons NO-79201 offer outstanding tear and abrasion resistance and superior friction properties. They can be applied universally, making service and stocking more efficient.

Temco’s intelligent bearing solution i-Bearing for filament machines allows condition monitoring online. By identifying critical conditions, bearings can be replaced before they fail which helps to minimize machine downtimes.

Today, Bräcker’s berkolizing technology of treating rubber cots with UV light to improve the surface has become an industry standard. At ITM, Bräcker is introducing the berkolizer pro which stands for consistent, energy-efficient, and adjustable UV treatment.

Opportunities and Challenges to the Spinning Industry

2021 was an unprecedented year for the global spinning industry. Driven by the market recovery after the pandemic and the regional shift of the industry, customers invested in new spinning systems at levels never experienced before. And despite the current uncertainties, customers continue to invest.

As market and technology leader, Rieter succeeded in this environment in posting a record order intake for 2021. This is clear evidence of the high level of trust customers have in Rieter. Dr. Norbert Klapper, CEO of Rieter, says: “Systems, machines, components, parts and services from Rieter have ensured competitiveness and success for customers over many years in the past and will continue to do so in the future.”

Dr. Klapper also comments on the challenges that lie ahead for the industry as it takes advantage of market opportunities: “The pandemic is not over yet, and business is exposed to dramatic cost increases as well as shortages in material supplies and logistics. In difficult times, it is important to work together even more closely than under normal circumstances. It’s all about true partnership and trust – the basis of Rieter’s business for 226 years.”

Visit Rieter at ITM 2022 at TÜYAP Fair Convention and Congress Center, Istanbul, Turkey, from June 14 to 18, 2022 in hall 3-314 at booth C07. Register to experience our virtual booth from anywhere, anytime via [www.rieter.com/company/virtualworld] with the ITM 2022 edition going live June 10, 2022.

Customer benefit
Seize the opportunity to exchange your analogue potentiometer with a digital one and profit from various advantages. The new potentiometer enables 400 times more measuring cycles than the analogue potentiometer. Additonally, an important improvement is a more accurate and stable signal with an exact resolution and no drift. Further, there is also no wear and tear side effect for this spare part.

All customers with machines as mentioned on the flyer, no matter which PCB, can profit from this new retrofit kit.

Download the "Retrofit Digital Potentiometer" flyer HERE and ask our service support for an offer.

Please do not hesitate to contact us for further information about SSM service solutions at L_hc__mss--troppus

SSM Schärer Schweiter Mettler AG

Winding is a small but crucial step in the textile value chain. This is when yarns are wound tightly onto a bobbin to prepare them for the next manufacturing stage. Every yarn manufacturer’s dream is to achieve a perfectly wound package so that the yarn can be processed easily in downstream processes, like dyeing or weaving.

preciforce sets new standards
The secret behind getting a perfectly wound package is achieving regular density across the entire package which is especially important for dyeing. But what looks easy on the surface is nothing less than a carefully designed engineering feat built on decades of expertise.

Until now, winding systems were limited to merely monitoring density without the ability to adjust pressure levels. SSM’s preciforce changes all this with the ability to regulate backpressure so that each and every bobbin reaches the same density. The perfectly even package densities make the dyeing process easier, thus optimizing results. Even better, dye houses save energy and water as they no longer need to repeat the dyeing process which is necessary when packages are wound unevenly.

A winning team: preciforce and DIGICONE 2
Perfect density is great, but costs also play a role. At SSM, the company’s mission is to help customers manufacture at the lowest possible cost and with the least amount of waste. Winding is a repetitive action so SSM engineers found that what was working for Google searches and algorithmic trading – which are based on recurring, sequential actions – was good for winding, too. They developed an algorithm that ensures the winding machines apply a step-by-step procedure to achieve a tightly wound package in the most economical way. DIGICONE 2 was developed with this advanced winding algorithm that ensures optimal accuracy in yarn laying. Together preciforce and DIGICONE 2 make an unbeatable team to manufacture a superior package in the most economical way.

In addition, preciforce helps to save roughly 20% energy compared to standard automatic backpressure systems.

To round it off, the reliability of SSM machines is unmatched, with the longest lifetime for machines and spare parts. SSM also provides a world-class service network with over 10 local service stations and 80 agencies worldwide. This translates into short journeys and fast response times for customers.

The main advantage of this retrofit for the customer lies with faster and more powerful motors. Due to stronger motors the speed can be increased, default rate can be decreased and lifetime of motors is longer. All factors have a very positive impact on productivity, which is a key criteria for production.

Download the "Conversion Traverse Unit TW1/2" flyer HERE and ask our service support for an offer.

Please do not hesitate to contact us for further information about SSM service solutions at L_hc__mss--troppus

SSM Schärer Schweiter Mettler AG

Customer benefit
Customers with PW1/2/3/8/X machines and cylindrical tubes profit from clear advantages in length measuring. Already when re-/winding 5000m of yarn the improved accuracy on length can be felt.

Further, there is less waste in the downstream process which results in a higher profitability for the customer. SSM already offers this option for other machines with great success and is pleased to make one of the latest length measuring technologies available to its customers.Once customers decide to upgrade their machines, they will benefit from improved accuracy and save money due to less waste.

Additional spare parts
All customers with PW machines, which are equipped with a Multiflex, Smartflex or a Precicontrol PCB can profit from this new kit. The following spare parts are required to improve the length measuring substantially: magnetic sensor, aluminium support, support roller with magnet ring, rubber-seal, software.

Download the "Support Roller Sensor PW" flyer HERE and ask our service support for an offer.

Please do not hesitate to contact us for further information about SSM service solutions at L_hc__mss--troppus

SSM Schärer Schweiter Mettler AG

A big advantage of Smartflex is that the control unit does not require any backup batteries and is therefore more stable than Precicontrol or preciflex™. Upgrading electronics of the machine can prolong its usability for additional 10 years.

With a Smartflex upgrade, SSM customers have clear advantages. Not only can they continue to use well maintained machines for another 10 years, but they also save money and add their share to a sustainable environment for consumers. Additionally, the new system is more stable which facilitates handling and maintenance. Latest version of machine terminal with coloured display and state-of-the-art electronical control board results in a significant improvement of the system communication, less break downs and higher machine efficiency.

Download the "Retrofit to Smartflex" flyer HERE and ask our service support for an offer.

Please do not hesitate to contact us for further information about SSM service solutions at L_hc__mss--troppus

SSM Schärer Schweiter Mettler AG

Polyester DTY (Drawn Textured Yarn) was first produced in the 1960s and has since become a commodity yarn. However, over time, polyester yarns have evolved to be used in a variety of specialty yarns, ranging from coarse denier per filament (dpf) to micro-filament and even super-micro-filament yarns. These yarns can be used to produce fabrics with a very soft touch and a light weight.

Filaments with different cross-sectional shapes improve perspiration evaporation or provide the fabric with a distinctive luster. Another specialty is achieved by encapsulating functional chemicals directly into the polymer to create fabrics with additional characteristics such as anti-bacterial properties to eliminate odors or using infrared body emissions to increase body temperature. Furthermore, an increase in dope dyed POY (Partially Oriented Yarn) brings advantages for color fastness and in terms of environmental friendliness, as no subsequent dyeing is required.

All these specialties are the new standard in DTY and bring new challenges for texturizers, e.g., the need for more flexibility in production, as more specialties mean more but smaller lots to be produced. Thanks to the DP5-T, SSM is already in a strong leading position in the air-texturing market; now it is solidifying this position by launching the most flexible false-twist texturing machine, the DP5-FT (Fig. 1).

A single-position machine concept for full flexibility
An entire DP5-FT machine with 40 positions can be set up with up to 40 different recipes. Every position is almost a standalone false twist (FT) machine with its own heater, control board and is furthermore equipped with individually driven, programmable motors.

There is no need to invest in an equivalent laboratory machine. Customers can simply dedicate one or multiple positions of the DP5-FT to trials and sampling. The position(s) can be reassigned back to normal production later to maximize efficiency and reduce sampling costs.

The individual position concept also brings advantages in terms of power consumption and production efficiency. Unlike shaft machines, the power consumption of a position is reduced when it is not in use, as all affected motors are stopped. Moreover, a power-saving function can be activated after a certain amount of idle time has elapsed to reduce the temperature of the heater and godet – maximizing the potential savings. On a running shaft machine, it is also common to find positions without yarn, because a wrap after a yarn break cannot safely be removed while running, or because a faulty position is awaiting the next machine stop. There are no such limitations with an individual position machine concept because each position can be stopped individually and serviced immediately, resulting in higher machine efficiency.

Last but not least, the DP5-FT is the first choice for manufacturers whose top priority is personal safety, as the individual position concept allows the use of much smaller motors, limiting the risk of severe injuries to operators.

Flexibility to increase production capacity
The high flexibility of the DP5-FT is reflected in the minimum available number of five positions only, making it the perfect solution for customers entering the DTY business. It enables full flexibility in terms of lot sizes, types and counts of DTY yarns as well as better control of the supply chain. If a customer later wants to increase the DTY production capacity, the machine can be extended to include up to 40 positions without changing the head stock and using the same machine terminal.

Full control and inspection without stopping the machine
A unique feature of SSM texturing machines is the heated godet (Fig. 2) to heat-set the DTY yarn and achieve the required elasticity. This is state-of-the-art in the production of polyester DTY yarns. Due to their length, tube heaters on competitors’ machines are installed at the rear of the machine or underneath the catwalk. Therefore, operators can’t inspect them during production or remove the internal tube periodically for cleaning. On SSM texturing machines, the heat-setting godet is located at the front of the machine, enabling full control and inspection of the entire yarn path at any time without stopping the machine. Instead of using a tube heater with a predefined length, using a godet also allows operators to influence the duration of the heat setting process by increasing or decreasing the number of wraps around the godets.

With this modern machine concept, SSM offers texturizers a proper tool to stay at the forefront of the competitive DTY specialty market.

For more information about SSM solutions please contact:

SSM Schärer Schweiter Mettler AG
Rütihof 8, CH-8820 Wädenswil / Switzerland
L_hc__mss--ofni, www.ssm.ch

Corespun yarns that are used to produce woven stretch fabrics consist of an elastic core with a second spinnable fibre wrapped around its entire length. The core can only be made from elastane. Or alternatively, it is made from an elastane yarn and a textured filament yarn. This is known as a “dual-core yarn”. Today, there is even a trend for making the core from two elastane yarns with different drafts and yarn counts together with a textured filament yarn. These “triple-core yarns” further improve the characteristics of these woven stretch fabrics in terms of their stretch and shape-retaining characteristics.

Two Production Possibilities
There are essentially two methods of producing corespun yarns with a dual or triple core. In the first method, the elastane yarn and textured filament yarn are spun directly on a Rieter ring spinning machine with the spinnable fibres that act as sheathing. In the second method, the elastane yarn and textured filament yarn are doubled, air-covered and wound up together on a SSM XENO-AC TWIN machine (Fig. 1) before being processed on the ring spinning machine. In a second step, cotton is spun over the dual- or triple-core yarn located on the “cheese packages” (Fig. 2), for example using a Rieter ring spinning machine (Fig. 3). Both methods require specialized superstructural parts to be fitted on existing ring spinning machines.

For the direct method in which the dual- or triple-core yarn is not pre-wound, these superstructural parts are very tall. In order to reload the ring spinning machine, it must be switched off. This causes a productivity loss of around 13% in comparison to the indirect method. Furthermore, the operating personnel have to climb onto the ring spinning machine in order to place the bobbins with the textured filament. This is not only dangerous but also means that additional personnel are temporarily required who could be utilized for other operational tasks.

Advantage Indirect Method
As discussed above, producing corespun yarns with a dual or triple core using the indirect method requires an additional work step: preparing the core yarn using the air covering machine SSM XENO-AC TWIN. The bobbin holder on the ring spinning machine needed for this solution is much lower and more user-friendly. A further advantage is that each spinning position can be loaded while all the other positions continue to operate. This means there is no production downtime while the machine is being reloaded. The conversion costs for both methods are around the same, with the SSM XENO-AC TWIN method being slightly cheaper.

Air Covering Machine Ensures Consistent Quality
The main advantage of the indirect method with the air covering machine is that the core yarn is centered better during processing on the ring spinning machine and is very well covered with the spinning staple fibres as a result. This ensures that the core yarn is optimally protected. It is very difficult for the operator to detect a non-centered core yarn in the yarn. This flaw can only be seen once the fabric has been woven and dyed. Since elastane cannot be dyed, poor centering of the core yarn can create flawed spots in the woven fabric that disrupt its overall appearance. The air covering machine ensures consistent quality and consequently reduces complaints.

Excellent Entry Opportunity for Traditional Ring Spinners
Corespun yarns with a dual or triple core where the filament has already been doubled and air-covered on an air covering machine are therefore of a higher quality than corespun yarns produced directly on a ring spinning machine.

The method with the SSM XENO-AC TWIN offers traditional ring spinners an excellent opportunity to enter the elastic corespun yarn market and achieve success. This method is also very user-friendly and safe. No compromises on yarn quality have to be made.

Please do not hesitate to contact us for further information about the SSM applications and possibilities.

SSM Schärer Schweiter Mettler AG

The variety of yarns and packages – a particular challenge
The problem is: the winding machines often fail to instantly wind packages that can be easily dyed. This is due to the fact that there are thick yarns, thin yarns, rough yarns, smooth yarns, straight packages, conical packages … the list could be continued infinitely. Good winding machines must take into account all these parameters and, at the same time, constantly produce packages of high quality. In case a package is wound in a suboptimal way, this situation will lead to problems in the downstream processes and, as a consequence, result in additional disadvantages. Additional disadvantages, however, cost time and money – money that is often lacking in the highly competitive textile market. Therefore SSM has developed an algorithm, in cooperation with a renowned university, enabling the winding machines to wind the “perfect” package, regardless of the yarn.

Images instead of laboratory tests
The engineers and mathematicians opted for a special approach. Instead of measuring parameters such as yarn tension, density, material, or yarn diameter, and packing them in complicated formulas, they translated the SSM expert knowledge into a theory, allowing for a precise prediction of package structures and density distribution. Using methods from the number theory, they finally managed to get a grip on the “chaotic and dynamic system” of package winding.

Based on the calculations, it was possible to devise the DIGICONE®2 algorithm that can be directly implemented into the winding machine control software. By means of high-speed recordings during the winding process and with the aid of x-ray computed tomography, the success of the SSM project was finally confirmed (see image comparative spool). Result: the identically constructed machines, which previously were not always able to wind a package that can be easily dyed, accomplished this task straight-away with the new software.

Competitive advantage through innovation
Thanks to the cooperation between SSM and university, the idea could be optimally implemented. “The innovative DIGICONE®2 algorithm enables us to stand our ground in the competition with other winding machine manufacturers”, says Karaarslan. The algorithm is successfully used by the latest SSM machine generation, and many customers have already tangibly profited from it.

For more information about SSM applications please contact:
SSM Schärer Schweiter Mettler AG
Neugasse 10, CH-8810 Horgen / Switzerland
L_hc__mss--ofni, www.ssm.ch

What’s a stable electricity supply?

An electricity supply is characterized by frequency, magnitude, waveform and symmetry of the three-phase-voltages. If the following disturbances exceed certain limits then the quality will be affected:

• main power shortages
• jitter light
• voltage variations
• frequency variations
• slow and rapid voltage changes (over-voltage, spikes)
• unbalance of three phase voltage
• harmonic distortion

An exact definition of a stable supply is given in the European Norm (ex. EN50160). SSM assures its machine function correctly if the norm is fulfilled.

How to test the electricity supply

To test if a supply is inside the norm you have to analyse your net over a long time. Variations over the seasons have to be taken into consideration (summer/winter influences etc.). Often a weekly analyse will give you sufficient information about your net. SSM can offer a short analyse of your net. Very often though consumers know their supply. Important are the amount of main power shortages and voltage variations.

How to connect the machine to the supply

A lot of errors can be avoided by connecting a machine correctly:

• Is the grounding system of the machine correct?
• Sufficient cross section of the supply pipe?
• Avoid connecting machines of different power classes to the same main distributor.

How to protect a machine

There are a number of devices that can help to protect a machine, e.g. UPS (unbreakable power interrupt), power stabiliser, flash protector, or net filter. It is important to choose the best and most economical solution. The beside checklist will help you to choose appropriate equipment.

The ratio between double strokes and number of revolutions is kept constant for a certain diameter range. The crossing angle varies only slightly within a range of ±1°. This results in an enhanced package density that does not change with increasing package diameter. So the building of pattern zones is avoided and the package maintains a stable structure without any ribbons. Due to this stable structure, the risk of complete layers “slipping off” during the unwinding process of dyed packages, as known with random winding, is completely eliminated.

The introduction of the XENO platform opened new possibilities for optimizing the winding algorithm. Thanks to this new machine platform, SSM could release DIGICONE® 2, enabling an increase of dye package density by another 10–24% with unchanged dyeing recipes.

For more information about SSM solutions please contact:
SSM Schärer Schweiter Mettler AG
Neugasse 10, CH-8810 Horgen / Switzerland
L_hc__mss--ofni, www.ssm.ch