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Vacuum Web Coating

Blogmaster: Dr. Charles A. Bishop

Entries for 'Charles Bishop'

04
When monomers are polymerised into polymers it is possible for some to add monomer to extend the polymer chain length in different ways. For example in polypropylene the methyl groups can be added on one side of the polymer chain only, known as isotactic polypropylene, or the methyl groups can be ad...

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20
Q. As you know, dyne level on metal side of BOPP metallized film drop very fast within a few days. Do you think dyne level reduction on BOPP film before metallized will help to maintain dyne retention after metallization still high ?. For example, if metallization conducted on BOPP with 40 dyne, dy...

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18
As there are a number of moving parts inside any roll to roll vacuum coater it is important that bearings are lubricated. Similarly of you are using rotary vane and diffusion pumps an essential part of the pumping system is the oil.  However from the standpoint of adhesion of any coating oil is...

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05
I often get asked about improving adhesion for specific films.  It really does not matter what type of substrate is used the approach to evaluating and improving adhesion is the same.    The substrate surface can vary between clean to contaminated.  The chemistry of the surface can vary between i...

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15
Free Webinar on Wednesday: Reactive Deposition by Magnetron Sputtering - The Basic Process and System Design Considerations, with Dr. Charles Bishop   The reactive deposition of compounds from metal targets is dominated by the system pumping. Most systems are insufficiently pumped and so th...

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Blogmaster

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Dr. Charles A. Bishop

Charles is a toolmaker by trade after completing a mechanical engineering apprenticeship. He then entered University and obtained a Bachelors degree in materials engineering with a Diploma in Industrial Studies. During his final year he first started work on vacuum based research, helping develop a process for manufacturing titanium based bone implants for tendon location. He went on to obtain a Masters degree and Doctorate following further research into vacuum deposition processes. During this time and as a postgraduate he also worked as a consultant.

Charles next spent time in industry working for various divisions of ICI including polyesters, nylon, Imagedata, Flex Products Inc., and explosives as well as contributing to other projects. In 1998 he took the opportunity to return to consultancy work and set up his own company.

Charles has more than 30 years experience in vacuum deposition mainly onto flexible webs. He has regularly contributed papers to conferences and recently has edited this blog on behalf of AIMCAL as well as being one of their presenters for various webinars and the more formal Converting School courses.

Charles has also published 2 books, Vacuum deposition onto webs, films and foils and Roll-to-roll vacuum deposition of barrier coatings.