Controlling Static in Industry

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Offset Printing

offset sheet feeding


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Neutralise static in your offset printing processes

Static electricity causes problems throughout the printing and print finishing industry.  The sketches below show typical solutions in sheet fed litho printing and folders.  Fraser offers cost-effective solutions to all of these problems.

Offset_SheetFeeding_01_2x2.jpg 

Sheet Feeding

Static causes sheets to stick together, resulting in double-sheet feeding and sheet twisting on the feedboard. 

Fraser manufactures Sheet Separation Systems to be used with compressed air to overcome this problem. 

Ionised air is blown into the top few layers of sheets to kill the static charge - as shown in illustration.

4300 In-line nozzle can also be considered for use with the existing air pipework.

A 1250-S Bar positioned about 10cm from the leading edge of the stack will also neutralise the sheet as it is lifted by the suckers - this will stop sheets misbehaving on the feedboard.

Contact Fraser for details on the latest sheet separation systems.

 

signsScreenPrinting_02_2x2.jpg 

Delivery

Static in the sheet after printing can cause bad delivery and a ragged stack.  The solution is to position a 1250 Bar so that it is within 50mm of the sheet, avoiding the grippers, as it travels towards the delivery.

Illustration shows 1250 Bar in swan-neck, and pointing down to reduce powder contamination.

Sheet travels up swan neck before going onto the stack.

Web Offset Printer:

Contact Fraser with specific problems.

 

 

 

 

   

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Shanghai Fraser Static Technology Co., Ltd

Room 301 Building #3

No. 2568 Gudai Road

Shanghai China PR

 

www.fraser-static.cn

Tel: +86 21 5296 7651
Fax: +86 21 5296 7653