Duroweave

parts printing presses duroweave dampening cover on roller

Your Best Choice for Duplicators and Small Presses

Our most popular sheared surface cover. Utilizing modern, high-speed knitting equipment we are able to efficiently produce a range of premium sheared dampening materials. Moderately priced, Duroweave offers a highly absorbent sheared surface well suited to presses through 30”. It is characterized by a loose knit construction combined with a tall pile height. Duroweave is available in prepackaged cut lengths with drawstrings for all duplicators, small web, and sheet-fed presses. Prices are listed, per cover. Cleaning and mounting instructions.

Features and Benefits Common to All Novatech Brand Covers

Sheared 100% synthetic fiber composition:
Our use of premium synthetic yarns ensures that our products will enhance the quality of the printed piece as well as increase the productivity press and operator alike. Knit from premium Rayon yarn for maximum absorbency and durability. Sheared, velour-like pile surface and seamless construction provide pattern free printing. Water absorption and retention is far superior to non-sheared, loop surface covers. Evenly sheared surface height permits reduced roller-to-plate pressure settings, extending plate life and improving image quality.
Shrinks tight when wet for the first time:
The surface pile fibers are bound tight by the shrinking base yarn. Linting or fiber separation is non existent from the start... no break-in period! Increased productivity with uninterrupted printing: No need to stop the press to clean fiber buildup on the plate, blanket, or rollers. No creeping, twisting, or “walking” off the roller, even at high speeds.
Washes clean with hot tap water:
Covers may be cleaned between jobs or at the end of the day in just one minute or less. No solvents, manual scrubbing, or specialized cleaning machinery is required, just hot water. Fast, simple maintenance makes Novatech covers last for months, not days or weeks. Reduces dampening costs by 50% or more! Go from black ink to yellow ink, or any other light color, without having to change covers.
Packaging and Availability:
Cut Lengths: Form and Ductor covers available for most duplicators and smaller sheetfed and web presses. Comes with drawstrings sewn on both ends and packaged in our exclusive "Slip-Mount" bag for easy cover mounting. Ductor and form covers are packaged and sold individually (sets consisting of one form and one ductor cover are not available).Pricing for Duroweave pre-cut lengths
All Duroweave Dampening covers carry a 100% money-back guarantee. If you are ever dissatisfied for any reason, Novatech will either replace the cover or offer a full refund.

What is a "Sheared Surface"?

Two of our leading dampening products, Duroweave and New Mol, undergo a unique surface treatment known as shearing. After the cover is knit, it is turned inside-out and passed through a machine simular to a drum sander which grinds the pile surface, opening the knitted loops. This cut pile results in an extremely soft, velour-like surface.

Shearing the loops permits every individual strand of fiber to wick water to the plate. This increased absorbsion capacity allows Duroweave and New Mol to absorb and transfer a thinner film of water faster and better than any other type of dampening cover.

Uniform water distribution is another major benefit of this secondary treatment. The surface of ordinary loop surface covers (such as Veratec's Red 1 or Jomac's Green Sleeves) have peaks and valleys due to tension variation during knitting. Press operators often compensate for this uneven surface by either increasing the cover-to-plate pressure or by turning the water control up a notch. Both of these cures are detrimental to either plate life and/or print quality. Duroweave and New Mol's surface, however, is sheared to a uniform depth from one end to the other; contact to the plate is always even across the plate. Additionally, the soft, nonabrasive surface results in longer plate life.

The smooth surface created by shearing also permits easy cleaning of the cover. Any ink buildup "sits" on the surface of the cover fibers as opposed to becoming trapped beneath or between the loops, as is often the case with other covers. A quick blast of tap water is all that is needed to return the cover to its original condition. As a result, Duroweave and New Mol will last 2 to 3 months if cleaned on a daily or frequent basis.

Also, these products have a much higher fiber density than other covers on the market. We knit more individual strands of very fine yarn into our product. The resulting benefit is a denser pile that provides greater water retention and distribution than coarsely knit products.