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Several studies show that during weaving, the warp tension is not absolutely constant across the fabric width. This phenomenon is particularly evident in dense fabrics such as airbags, parachutes fabrics and sailcloth’s. In this case, it is possible that the fabrics are looser in the selvedge area than in the ground fabric. As a result, such fabrics can only be processed with difficulty. The wavy selvedge area becomes more pronounced the wider the fabric is woven. In order to counter the wavy selvedge, the threads should be fed from sectional warp beams into the weaving machine with a higher tension than the ground warp. The required tension should be adjustable on both sides independently to the required tension level. The SELVEDGE THREAD LET-OFF SOLEX meets these requirements and is designed for these applications. Wavy, non-uniform and flabby selvedges can thus be prevented or greatly reduced.

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Our partner Construcciones Mataró Servicios y Asistencia Tecnica, known as COMSAT, is a leading manufacturer of direct- and sectional warping machines with the appropriate creels, thread tensioners and yarn break detectors for warp preparation in weaving. Other auxiliary machines produced by Comsat are warpers for selvedge yarn spools and spools for needle looms, batch winders, fabric inspection machines with the necessary peripherals.

With the latest technology for the development, production, quality control, competitive and market-oriented products can be offered which meet the increasing requirements of the customers. The machines are distinguished by their particularly robust design and are therefore particularly suitable for daily use even under high loads.

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Web tension control

Tension fluctuations can be the nightmare of any quality manager.
Once they occur, the risk is significantly higher to produce defective goods. Additional costs are incurred by delivering goods of poor quality or precious time is lost to solve the problem or missed delivery dates pose other, uncomfortable risks.
A precise tension control is important with every winding application where high quality is indispensable to produce the best product.
Mechanical feed systems where the spools are controlled by ropes and weights require an operator to continuously reduce the weight of the ever-decreasing roll. Today’s tension control frees this person from these manual tension corrections, as the constant web tension is guaranteed by the web tension control.
For this reason dancers and load cells – or a combination of both – are typically used on winding and unwinding devices. When used correctly, these systems are very accurate and provide a high degree of control.

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Winding Device for Surplus Warp Ends / FADAB

Draw off the yarn from the warp beam
It frequently occurs that more warp threads are wound on the warp beam of a weaving machine than are required to weave the intended fabric.

This surplus of warp threads on the warp beam is often intentional in order to ensure that there are enough warp threads available for the fabric.


To prevent surplus warp yarn getting entangled with regular warp yarns it is necessary to draw off the yarn from the warp beam. The stand-alone warp take-up makes it possible to draw off and wind up single threads or thread bundles consistently on a take-up reel.

The draw-off tension of the threads or thread bundles can be set steplessly. In the case of a full take-up reel, the material can be easily stripped off the cone by removing the front disk.

During the standstill of the production machine for fault elimination or similar purposes, it is not necessary to disconnect the winding device. Only during longer standstills, e.g. overnight, is this disconnection advisable. A control light shows whether the device is connected or disconnected. This portable warp take-up can be placed behind each narrow and wide weaving machine.

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Degressive batching motion for tirecord fabric

Each year approximately one billion tires are produced worldwide. Their elastic, yet dimensionally stable structure is guaranteed by special fabrics.

Tire cord fabric is mainly woven from bobbin creels. A warp feeding device between creel and weaving machine ensures a uniform tension to the warp threads and a large-size batch winding device with its superior winding technology for big batches so they can be further processed without any problem.

The production of large batches with this special tirecord fabric gives some problems with big diameters and heavy weights.

When using conventional batching motions the so-called “Cauliflower Effect” results.

This problem can be solved with the degressive batching motion. For winding the fabric lengths the batching motion is imperative.

We recommend using degressive batching motions.

With degressive winding the batch rolls are produced at a constant pressure, i.e. a device must exist which controls respectively reduces the pressure of the batch roll to the tangential driving roller.

For each fabric the pressure can be set individually. With this measure the so-called “Cauliflower Effect” is prevented. Variations in width and density especially in the selvedge zone are avoided.

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Production processes in the textile industry

Since the founding of our company in 2003, we have consistently followed the path of high-quality electronic warp let-off systems for the weaving and warp knitting machines.
We have achieved our goal through competence, hard work and quality. Today we are the world’s leading manufacturer of electronically controlled warp thread feed systems for wide and narrow weaving machines as well as warp knitting machines.
We will continue following this path in the future. This will be made possible by the successful succession of our enterprise.
At the same time, we plan to shore up our position in new areas of business as a development partner to our customers. We are particularly interested in projects in the area of technological innovations; focusing on automatization of production processes in the textile industry.
We regard ourselves as a partner who is reacting flexibly and competently to our customer’s wishes and demands and who is working together with them in trustful collaboration.
Our team is looking forward to challenging projects and conversations with you.
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