In-depth on Smashes

Paper Smash
Type #2 Smash – Paper smash that has broken the rubber and cannot be repaired by EIS

Paper smashes commonly occur among conventional printers as bad paper travels through the press. To Enviro Image Solutions, paper smashes are either,  Type #1 (repairable) or Type #2 (not repairable).  Type #2 smashes are generally very severe and the rubber surface is typically broken.  Blankets with Type #2 smashes are not recoverable with our proprietary blanket renewal process as we do not grind or resurface in any way.  Type #1 smashes are repairable as the rubber is unbroken but still has a low spot or dent from the paper hit.  We have multiple processing techniques and routinely repair Type #1 smashes.

Sucker smashes are not a common issue with most print shops and generally happen with new or inexperienced feeder men.  The severity of the sucker smash determines if we can repair the blanket for reuse on press and the same rules apply to sucker smashes as paper smashes; if the rubber has broken, then it is not repairable by Enviro Image Solutions.

Ink smash usually occur when globs of ink fall into the running press causing a round smash and usually fractures the rubber.  These smashes typically occur when excessive ink build up falls off in chunks from the impression cylinders or if the print unit crossbars/ink fountain are in need of maintenance.  However, Enviro Image Solutions considers these types of smashes preventable.  As a general rule, we recommend that that you examine and frequently clean your crossbars, cylinders and other areas where ink build up can dislodge and fall into the running press. A method to reduce the amount of ink build and lower downtime for clean up each shift is to cut your packings to a length and width shorter than the substrate, especially on longer runs.  Over-trimming your packings is generally a very good policy as there are many other side benefits from this practice, including reducing the amount of ink build up that occurs on the impression cylinder, reducing maintenance on your press, improving image transfer, improving ink-water balance, reducing paper waste with each stop and start of the press, etc. and can lower overall blanket usage.

Cutting packings is not a good solution or even possible with certain printers though. To find out more on this and other customized recommendations that can work for your company, send us 10 blankets to participate in our Free Trial to prove the quality of our service and renewed blankets.  As part of our free trial we will send you a Pressroom Diagnostic Report to help make your company become more efficient and lower your overall blanket consumption.  For more info please contact us.

Ink Smash
Type #2 smash – A glob of ink that makes a round indent in the rubber often causing fracture lines in the rubber surface and is not repairable by EIS.

 

 

 

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