Screen Roll Cleaning

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Screen Roll Cleaning wash procedure

Screen rolls are mostly cleaned when they are too dirty for transfering ink which is too

late! A print job is best started with clean screen rolls.

Technology Coaching has developed a new wash program that can be implemented on

any servo driven flexo printing machine and results in that a print job is started with

clean screen rolls.

The advantage of applying this new screen roll wash procedure:

o

no colour related downtime

o

less waste during set-up

o

less use of chemicals

o

no more deep cleaning or other time consuming cleaning programs

o

higher productivity

o

higher product level and constancy

o

lower production cost

The implementation program consists of: First meeting: o Explaining the principle of the new wash procedure, what is the difference with all current applied wash procedures and why this wash program really works o Inspection of current screen roll state and configuration. A warn screen roll needs replacing. Not all screen roll configurations are cleanable. An engraving with deep cells will never be cleanable. See the page: Screen Roll Selection o Testing the currently by the customers used screen roll cleaning detergent and inspection of the MSDS sheets Instructing the machine supplier on how to reprogram the machine software to incorporate the new screen roll wash cycle. Technology Coaching is well known by the machine suppliers and will provide them with a software programming instruction Selection of the screen roll cleaning detergent supplier (if needed) Together with the operators implement the screen roll wash procedure in the daily working practices A short period follow-up to monitor if the new screen roll cleaning wash procedure is applied and the impact it has on screen roll Ink Film Thickness constancy Contact Technology Coaching if you want more information or a quotation.

Read more about screen rolls in the following article:

“An alternative for screen roll line count?”

International Paper Board Industry, September 2018

“The real source of dot gain?”

International Paper Board Industry, July 2014

“Unambiguous Conclusions of the Extended Cell Shape Performance”

Presented at CorrExpo conference (TAPPI), Indianapolis (USA), 8-9 October 2013

“Unambiguous Conclusions of the Extended Cell Shape Performance”

Flexo & Gravure Global, March 2013

“Performance conclusions of the EFlo extended cell shape from Pamarco”

International Paper Board Industry, March 2013

“Unambiguous Conclusions of the EFlo Extended Cell Shape Performance”

Flexo Global, March 2013

“Choosing the best screen roll for your printing process”

FlexoTech, March 2009

“The best screen roll for your print process. How do you specify it”

International Paper Board Industry, February 2009
Technology Coaching