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Web Coating

Blogmaster: Dr. Edward D. Cohen

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Coating Solution Handling

16

The Importance Of Procedures and Training

Posted by Edward Cohen on February 16, 2012
The typical coating line is a complex process that consists of 17 major components, table 1, each of which has many subsystems, that are necessary for the successful operation and can a cause defects if not functioning as specified.  The total number depends on the exact design of the coating l...

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Posted in: 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
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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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05

Where To Use Filters In The Coating Process

Posted by Edward Cohen on December 5, 2011
Where To Use Filters In The Coating Process
Comprehensive filtration is an efficient, low-cost method of reducing coating and drying defects that are the result of foreign material, contaminants, being introduced into the coated layer. In the ideal process these defects could be prevented by not introducing the contaminants at all components ...

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Posted in: Coating Solution Handling
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14

AIMCAL Web Coating & Drying Course

Posted by Edward Cohen on September 14, 2011
  This course will present the technologies that are needed to successfully operate a web coating and drying line.  The fundamentals of each operation will be presented along with specific example of the required technologies. The course will be presented on October 37 4  in Phi...

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Posted in: 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
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13

AIMCAL Coating Solution Preparation Course

Posted by Edward Cohen on September 13, 2011
This course will  present the technology needed to effectively prepare  solutions for the web coating process. Attendees will be shown the significant parameters for efficient mixing and how they can be used to estimate mixing time. Also, this course will demonstrate that the properties of...

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Posted in: Coating Solution Handling, Coating Solution Measurements & Characterization, Coating Solution Preparation
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26

Consider contract coaters as part of product scale-up

Posted by Edward Cohen on May 26, 2011
Contract coaters, also called toll coaters, provide web-coating and converting services to assist other companies in the development and manufacture of web-coated products. Typically, they have extensive process facilities to accomplish this task. They have coating methods that can coat a wide range...

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Posted in: 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
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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.