Dr. Laszlo Olah (R&D Engineer, CDO)
Resul Istrefi (Managing Director)
Which mechanical compact spinning solution is the best for cot & apron longevity?

Mechanical compact spinning cover image


Mechanical compact spinning has revolutionized the textile industry by providing high-quality yarns with reduced hairiness and improved IPI and yarn strength. With its numerous benefits, it is no surprise that more and more textile manufacturers are adopting this technology to stay ahead of conventional compacting systems, such as suction compacting. By optimizing the usage of cots and aprons, we can not only reduce costs, but also contribute to a more sustainable industry by reducing waste. Therefore, it is crucial to explore different strategies and techniques that can help us achieve this goal.


Swinsol AG and Säntis Textiles innovating the textile circular economy.

Rieter machine with the Recompact 3.T unit spinning 100% recycled fibres from Säntis Textile sourced yarns


The rising demand for 100% recycled textiles

The economy is facing a rising demand for greater circularity and sustainability emphasized by government laws and public pressure regarding the Co2-footprint and sustainability reporting until 2030. Swinsol AG and Säntis Textiles have recognized the arising opportunity to make an impact in the textile industry years ago. Slowly but steadily, the economy is changing towards the needed recovering process of textiles. Through innovative technologies, a second and third lifecycle for textiles is made possible. With the arising demands for sustainability, Swinsol AG and Säntis Textiles are already positioned to offer services and provide manufacturing processes for recycled textiles around the world.


2 Years of success in spinning recycled textiles

It has two years, since Swinsol AG and Säntis Textiles decided that it is time to invent a solution and spin 100% recycled yarn for the first time. Säntis Textiles is a extraordinary textile sourcing company focusing on the sustainable sourcing and production of recycled yarn. The system achieves up to Ne30 with 100% recycled cotton, including core yarns for denim. Those yarns are running commercially since more than 2 years at Kipas spinning plants in Türkiye. Prior to the partnership, hardly any system could spin the short fibres of the recycled yarns. Both companies teamed up and approached the challenge and never looked back. The mechanical compact system “Recompact” manufactured by Swinsol has the right fit and innovative geometry to spin 100% recycled yarns and even produce excellent and high quality yarn from the short fibers that are recovered from textile waste.


Rieter K-Conversion – Upgrade of the K-Machine to the Swinsol Mechancial Compact Solution

Introduction Rieter K-frame

It is now possible to spin short staple fibers with a mechanical compact system upgraded to the Rieter machine and achieve the same yarn quality with significantly reduced costs (same cost as conventional spinning) on the Rieter K-frame. Compact spinning was introduced as a trial system in 1995. Later in the year 2000, Rieter introduced an innovation in the air guide providing more fibre compactness. It was called K44-Com4, the Rieter K-frame and it uses suction compact technology. If clean long combed fibers are used, the K-system delivers good yarn results for fine yarns. However, on the sourcing market there are by default less long fibers available. Especially cotton has – by nature – shorter fibres. If the high quality material is not availabe, by our experience, the suction compact will lose its fine-yarn advantage. In reality the K-frame is often used to spin coarser counts and short carded fibers. Pneumatic (suction) compact causes higher cost of material and additional energy consumption. Our upgrade can be used to give the Rieter K-frame a second life to save resources, energy and costs for expensive spare parts. Therefore the economical effect and the cost benefits are significant.

Why mechanical compact spinning is going to supersede pneumatic (vacuum / suction) compact spinning.
The adoption of mechanical compact spinning
The adoption of mechanical compact spinning


Compact spinning was founded way back in 1999. Soon after in 2003, mechanical compact spinning was invented. But only right now, with new technology and better systems available, we see the mechanical side of compact spinning gain more traction among spinners. Until now, pneumatic compact spinning was widely adopted, only for spinners now to realize, that mechanical compact spinning is going to be the future. Why is that?


Missing focus on environmental impact:

Spinning is a vital operation process in the textile sector. The fashion industry is highly dependend on the yarn manufacturers and the yarn export of spinning mills. Recently, intensified by the worldwide crysis and rising energy and oil prices, the perspective of a more environmentally friendly production reaffirms itself. Both, the retailer demand and the demand of the government points towards more sustainablê ways of production. In the upcoming years, it will not only be a choice to make. Companies will also be forced to take necessary steps. The ones who do not comply, will certainly fall behind. The possibility, that this leads to further extrusion of some companies in the market even after the crysis remains very high.

Dr. Laszlo Olah (R&D Engineer, CDO)
Resul Istrefi (Managing Director)

Published by:
Simon Wilhelm (Co-Author, Marketing Manager)


What is compact spinning?

Compact spinning is a process, where fiber strand drawn by drafting system is condensed before twisting it. Compact spinning was introduces in the 90’s and developed around the year 2000. The benefits of compact spinning are widely known and described in professional literature (improved hairiness, tensile strength and elongation), however the additional expenditures forced many spinners to reject the implementation.While in the past, there was a price benefit for compact yarn on the trade-market, this is no longer the case. Today, there is no up-payment for compact yarn anymore. But the significant production benefits of compact spinning still remain prevalent up until this day. Though, most technologies lack consistency and a propper technology. Many spinning mills have witnessed failure in the past. Prior technology clearly disappointed. Technology has matured since then and it has now become possible to adopt compact spinning at about the same cost as conventional spinning – which makes compact spinning lucrative and profitable.

Dr. Laszlo Olah (R&D Engineer, CDO)
Resul Istrefi (Managing Director)

Published by:
Simon Wilhelm (Co-Author, Marketing Manager)

Introduction: The need for sustainability and modernization of old parts in the textile industry

The world – now more than ever – needs to think about ways of optimizing its outdated parts and co2-emissions, acting with care when it comes to the preservation of natural resources and energy consumption. It is not just the presence of the crysis, but the greater demand of the population which unavoidably leads to a restructuring process of political views and economic perspectives in the upcoming years. Like in every other segment, stagnation leads to extrusion in any market. How you position your company now, adapting to the opportunities in this recession, will determine how strongly your company can grow when the economy works in your favor again.


2-in-1 Cot Mounting Device:

Spinners need to maintain cots and rollers, when they are engaged in the process of ring or compact spinning. Therefore we developed a device with changeable parts for both – delivery rollers and front top rollers. It makes switching from roller size aswell as from pressing on – to pressing off very easy. The Cot Mounting Device is part of the supply of our Recompact package.

Swinsol’s recycling program creates opportunities for further sustainability

Swinsol is constantly adopting to a greener environment. The newly implemented Recycle & Reuse Program allows customers to benefit from the program and return their wearing parts used by spinning mills and get a monetary reward for supporting sustainability. In the process of ring and compact spinning, there are some wearing parts which have a limited lifetime. Afterwards, they often are thrown in the trash. Swinsol’s approach to sustainability and recycling especially wants to tackle this issue and create a win-win situation for both, customers and the environment. Keep on reading, if you want to know more about it.












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