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Blogmaster: Dr. Edward D. Cohen

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Coated Product Measurement & Characterization

25

Online defect detection

Posted by Edward Cohen on April 25, 2012
Online defect detection
There several reasons for using online continuous defect detection system in a web coating line. In these systems various technologies are used to rapidly detect defects and store information about them in a computer database.   Online detection is superior to the off-line procedure in which...

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Posted in: Coated Product Measurement & Characterization
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29

Web Coating Technology Continuing Education

Posted by Edward Cohen on January 29, 2012
The web coating process is a complicated, technically sophisticated process that has many basic modules, unwind roll, transport roll, prepare coating solution, coating application, dry coated film, online process control, optimize coating solution, and coating line process control. All of these are ...

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Posted in: Coated Product Measurement & Characterization, Coating All Other, Coating Applicator Roll Coating, Coating Applicator, Slot Die, Slide, Curtain, Coating Solution Handling, Coating Solution Measurements & Characterization, Coating Solution Preparation, Defects Characterization Causes & Cures, Dryers & Drying, Laboratory & Pilot Coaters, Laminating, Metallizing, Process Instrumentation & Measurements, Substrate Surface Treatment, Substrates, Web/Tech, Weblogs
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28

AIMCAL 2011 Web Coating Conference

Posted by Edward Cohen on October 28, 2011
The AIMCAL Web Coating Conference was held in October 2011. The goal of the meeting is to provide a forum exchange of technical information personnel in the web coating Industry. There were sessions on Web Coating and Laminating Technology, Vacuum Web Coating Technology and Plenary sessions. The ...

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Posted in: Coated Product Measurement & Characterization, Coating All Other
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03

Standard Specification for Coating Weight Uniformity

Posted by Edward Cohen on August 3, 2011
There is a need for a Standard Specification for Coating Weight Uniformity in the Converting Industry.  One of the key requirements for an effective coated product or coating process development is to have standardized names and a common definition for all terms. This will insure that when the ...

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30

Online coating weight measurement

Posted by Edward Cohen on May 30, 2011
Online continuous measurement of coating weight during the coating process is rapidly becoming an essential process quality control technique. It is my belief that in a relatively short time in the future a coating line that does not use this technique will not be competitive. It will replace the ol...

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Blogmaster

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Dr. Edward D. Cohen

Dr. Cohen is a technical consultant in all aspects of the web coating process. His expertise includes thin film coating and drying process development, coating application and drying of thin films, polyester base development, film defect mechanisms, formulating coatings, image analysis techniques for characterizing coating films and litigation support.

He has over 45 years experience in coating research and manufacturing technology with the DuPont Company and as a technical consultant to the converting and composites industries

He has extensive publications in the field and has co-authored several books: Modern Coating and Drying Technology, Coating and Drying and Defects: Troubleshooting Operating Problems, and chapters in Kirk-Othmer Encyclopedia of Chemical Technology and Water and Solvent Based Coating Technology. His honors are the John Tallmadge Award for Contributions to Coating technology, the AIMCAL President's award in recognition of Meritorious Service to AIMCAL and the Converting Industry, and the ISCST Founders Award. He was the founding president of the ISCST. He has a Bachelor of Science in Chemical Engineering from Tufts University and a Ph.D. in Physical Chemistry from the University of Delaware.