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Technical Bulletin TRM/95

Ductor sleeves are a covering for the water ductor or transfer rollers of an offset printing press. They absorb, store, and meter fountain solution to the vibrator roller. The Imation Ductor Sleeve is a fibrous composite covering that is seamless, super-absorbent, and water-shrinkable. It is available in 27 diameters. Field tests rate the Imation Ductor Sleeve superior to competitive cloth covers. Here is a chart of advantages and disadvantages of the Imation Ductor Sleeve and competitive covers.

Cover Sleeve	Advantages	Disadvantages
Woven Dampener Covers High water capacity	Low price Requires mounting sleeve	Sewn Seam "Molleton" Drawstrings on end Linting and picking Roller resetting due to "beatdown"
Elastic Knit "Hyton"® Dampener Cover	Low price Seamless Requires mounting sleeve	Requires end sewing High water capacity Soil quickly Difficult to clean Linting and picking Roller resetting due to "beatdown"
Shrinkable Knit "New Mol"® Dampener Cover	Seamless Shrink in water Medium price	Requires end sewing Less water capacity Medium lint resistance "Red-1"® Dampener Cover Medium cleanability
Imation Ductor Sleeves	Shrink to rollers Easy to clean No "beatdown" Little/no linting Good water control Seamless No sewing required Easy installation	Price Requires precise fitting for original installation May require press roller resize

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