http://printwiki.org/Ink_HoldoutRecent Changes of the page "Ink Holdout" on PrintWiki.en-us http://printwiki.org/Ink_Holdout2007-09-06 12:00:00Encyclopedia of Graphic Communications Import <div id="content" class="wikipage content"> Differences for Ink Holdout<p><strong></strong></p><table> <tr> <td> <span> Deletions are marked with - . </span> </td> <td> <span> Additions are marked with +. </span> </td> </tr> <tr> <td> Line 1: </td> <td> Line 1: </td> </tr> <tr> <td> </td> <td> <span>+ The ability of paper to prevent ink from penetrating into its surface (in contrast to ["ink absorbency"]). Inks that produce the best result by drying via ["oxidation"] (as opposed to drying via absorption into the paper) require paper that has sufficiently low ["porosity"]. Too much ink holdout, however, can cause ["ink setoff"]. Inks achieve greater levels of gloss and better image quality when they dry on the surface of paper, rather than when they are absorbed. However, in some printing processes (such as high-speed web printing for newspapers), it is desirable to obtain rapid ink penetration and drying, a case where increased ink holdout is undesirable.<br> + <br> + The degree of ink holdout is a function of porosity, as well as ["moisture content"] and a variety of other paper characteristics. (See ["Ink Absorbency"] and ["Paper and Papermaking: Paper Properties"].)</span> </td> </tr> </table> </div>