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Blogmaster: Dr. Eldridge M. Mount III

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29

Bubbles in laminate

Posted by Eldridge Mount on January 29, 2011
I was recently asked the following question. 1. What is the reason for bubble formation in laminates? We are using a solvent-based adhesive system.2. Also, the bubble problem is not observed for the same thickness of polyethylene without nylon layer (polyamide) and printed PET (Mylar ) laminate....

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18

Package barrier measurement

Posted by Eldridge Mount on January 18, 2011
Question: What would you suggest as a method to measure the barriers of the final closed package? Answer: This is a great question as ultimately the protection provided by the package will be the package barrier as opposed to simply the flat sheet film barrier.  There are several was to measu...

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20

Embossing during film orientation

Posted by Eldridge Mount on December 20, 2010
Embossing during film orientation
I have received a question about the possibility of embossing a film between the MD and TD orientation steps and how it might be done.  This is an interesting question which I have not considered before.  It should be possible and the embossed pattern will survive the stretching step. ...

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12

Maintaining the surface energy of metallized PET films

Posted by Eldridge Mount on December 12, 2010
This is in reply to a comment from "Chemical barrier of metallized films," posted Nov 9, 2010. Question: “What types of coatings do the PET films producers use for maintaining the surface energy of the films?” Answer: I assume from this that the questioner means the surface energy of...

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04

Collecting analytical samples from a customer complaint

Posted by Eldridge Mount on December 4, 2010
Here is a question which indicates the need for collecting a sample from the customer’s site for further chemical analysis. It's interesting because it highlights the need for control of the sample-collection process to help with the quality of the sample analysis. “I just received a...

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03

Asking good questions on film performance

Posted by Eldridge Mount on December 3, 2010
As you can perhaps imagine I receive a fair number of questions relating to lamination and film properties over t he course of the year, which I enjoy more that you might expect.  However, many questions are a bit to terse to answer very well the first time through.  For instance the quest...

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26

Is it possible to metallize PE or PS film?

Posted by Eldridge Mount on October 26, 2010
I have been asked if it is possible to metallize PE (HD, LD, LLD) film or PS film? The short answer is yes, and there is a great deal of metallized-PE used in packaging and for mulch. While I have not seen a great deal of metallized-polystyrene films, it should be easy to do, as long as the metalli...

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17

Seven-layer CPP problem

Posted by Eldridge Mount on October 17, 2010
I received the following problem statement by e-mail and thought you might review my answer and make suggestions as well. we have seven layer CPP line, but in the case of White film we used only five extruders instead of seven, the seven layers are produced by the plug which is inserted in the fe...

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Blogmaster

Eldridge Mount photo Dr. Eldridge M. Mount III

Dr. Mount is an independent consultant in the coextrusion, extrusion, film, metallization and film converting industries. He is a leader in the development of metallized films for barrier applications and film laminations. His expertise is in oriented film product and process research, the design and implementation of extrusion systems and coextrusion die specification and system specification including installation and start-up. He is also recognized for trouble shooting mono and biaxial orientated film and sheet coextrusion, melt casting and melt pinning, and film surface treatment by corona, flame and plasma systems. EMMOUNT Technologies, LLC offers consulting and technical training in film orientation, barrier technologies, coextrusion and extrusion and measures polymer melt viscosity with a capillary rheometer.

Eldridge has over 30 years industrial experience in the extrusion and orientation of polypropylene and polyester films at ExxonMobil Chemical and ICI Americas Film Divisions. He managed the intellectual property of Mobil Chemical Films Division and has courtroom experience as an expert witness. A frequent contributor to SPE ANTEC, AIMCAL and TAPPI conferences, he is a member of the SPE Extrusion Division Board of Directors, and a Fellow and Honored Service Member of SPE. Appointed AIMCAL Metallizing Consultant in 2001 and a past VP of the Society of Plastics Engineers. He has a Bachelors degree in Chemistry from West Chester University and a ME and PhD in Chemical Engineering from Rensselear Polytechnic Institute.

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Eldridge M. Mount III

EMMOUNT Technologies, LLC

Beth M. Foederer

Optex Process Solutions, LLC