Back rest rollers offered by weaving machine manufacturers do not always meet the specific requirements of customers, especially when producing delicate fabrics with high quality demands.
Thanks to our extensive expertise, we can design and manufacture back-rest rollers to meet the specific needs of our customers.
The back rest roller compensates for tension variations caused by shed formation during weaving. This is particularly important for light and delicate fabrics. We therefore recommend the use of massless back rollers to ensure a safe weaving process.
What is a massless back rest roller?
A massless back rest roller is designed to exert minimal additional mass or inertia on the warp yarns. This is critical because additional mass can affect the dynamic properties of the yarns, resulting in fabric defects or unnecessary yarn breakage.
DORNIER weaving machine with massless back rest roller
Application examples
Here are some of the applications where we have developed special tension rollers:
Gauze: Gauze is a very light and loose fabric made from fine yarns. A back rest roller for gauze must tension the warp yarns evenly and gently to prevent uneven fabric formation or yarn breakage.
Wool fabrics: With delicate wool fabrics, tension is particularly important due to the elasticity of wool compared to other fibres. A special back rest roller, which considers the elasticity of wool, ensures uniform tension, resulting in a consistent end product.
Seersucker: Seersucker is characterised by its distinctive crepe-like stripes. To achieve this characteristic surface, a high degree of weaving-in of the warp yarns is required, which can be optimised using a massless back rest roller.
These examples are not exhaustive; there are numerous other applications for fabrics with a few fancy warp threads, such as in the weaving of leno fabrics or binding threads for multi-layer fabrics and similar structures.
PICANOL weaving machine with massless back rest roller
In addition to the design and manufacture of massless back rest rollers, we also offer solutions for back rest rollers that need to withstand very high warp tensions, such as in the production of PP fabrics.
We would be pleased to discuss your specific requirements for a back rest roller system and assist you in finding the optimum solution for your needs. Our experienced team will provide expert advice to ensure that the chosen system is perfectly suited to your production requirements.