Web Coating Blog

Effective Networking, A Path Through The Information Overload

                        Effective Networking, A Path Through The Information Overload
                                            Edward Cohen

Even though we live on large planet, with large physical dimension (a Volume of 1.0832073_1012 km_ and a  Mass of 5.9736_1024 kg); technologies such as the Internet, Information Sciences, World Wide Web, rapid digital communications ,easily accessible databases and search engines have made it a very small world. It now possible to instantly communicate with persons all over the world and to obtain technical information from most countries, businesses and Universities.

The Importance of Coating Process Support Systems

                             The Importance of Coating Process Support Systems
                                            Edward Cohen

Ongoing technical projects are needed to improve the quality, cost & productivity of a coating line in order to remain competitive and rapidly develop new products. There are several important considerations when developing and identifying coater needs and deciding on the most effective programs too work on. These are:

AIMCAL CONVERTING SCHOOL COURSE

The AIMCAL Converting school is sponsoring a course Coating Solution Process Technlogy. The course outline is below. For more details and to register go www.AIMCAL.org.

                             SOLUTION PROCESS TECHNOLOGY
                             Cohen, PhD, Edward Cohen Consulting, Inc.
                            Kenneth McCarthy, PhD,  Clean Room Coating Solutions

CEMA Coating & Laminating Fundamentals

AIMCAl & CEMA will be sponsoring a Seminar on Coating & Laminating. The schedule is below. For more information and to register go to
        www.AIMCAL.ORG

Continuing Education Courses.

The Association of Industrial Metallizers, Coaters and Laminators (AIMCAL) is sponsoring several continuing education courses in Converting Process Technology in 2008.

Importance of Solution Properties in Web Coating Process Quality

Link: . Importance of Solution Properties in Web Coating Process Quality Edward Cohen 
Importance of Solution Properties in Web Coating Process Quality
Edward Cohen

The properties of the coating solution(s) are critical factors for the reproducible ongoing production of a high quality low cost web coated product. The ability of the coating applicator to uniformly and reproducibly apply coating, final coating quality, physical defects, coater operability and many surface features of the coated product critically; all depend upon the rheological properties, stability and purity of the coating solution.  In addition, if the solution does not meet all the requirements of the coating application and drying process and is defective in any way, none of the subsequent process steps can correct these deficiencies and a defective product will result.

One Thing to Optimize Process

A question that is often asked about the Web Coating Process is “ What are the one or two most critical areas of the process that I should concentrate on to obtain a coated product with high quality and low cost?”. A possible basis for this question can be found in an interchange in the 1991 movie “City Slickers”, between Billy Crystal and Jack Palance

Organic Roll Coating to Form Interference Layers

                        Organic Roll Coating to Form Interference Layers

                                    Ken McCarthy
                        Multilayer Coating Technologies LLC

Abstract

This presentation will discuss an anti-reflection layer coated from a solution of organic polymers. The optical properties of this layer will be delineated, along with the required uniformity down-web, cross-web, roll-to-roll, and batch-to-batch.

Introduction

The primary purpose of an interference layer is to reduce glare reflecting from the surface of a film, thereby enhancing a customer’s visual experience. The coverage of this layer is vital to its being able to function as an interference layer. In this paper, the reasons for tight coverage control and some of the potential issues will be discussed.

Consider Modernizing an Existing Coater to obtain Improved Performance

As a coater ages, often it cannot meet current productivity, quality and cost needs. When this occurs, consideration should be given to modernizing the coater to meet these current and future needs.

Some of the problems that can lead to the poor performance are:

• Increased sales resulting in insufficient manufacturing capacity to meet sales demand.
• The current quality requirements cannot be met by the existing coater.
• New theology is required to manufacture products.
• Cannot meet the requirements for new products being developed.
• Product costs are increasing and are not competitive.
• Increasing yield losses.
• Equipment is wearing out and design conditions can not be achieved and maintained.
• Coater is becoming hard to run consistently.
• Downtime in the coater is increasing.

Upcoming Technical Meetings

There are several technical meetings that will occur in the next three months, which will discuss coating process related technology. I believe that there is a benefit to attending these meetings. These meetings provide a forum to where the participants can interact with each other in person. Communications and networking are much better face-to-face and when the topics being discussed can be seen, touched and questions immediately answered.