Films optimised by
Electron Irradiation

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celotec film irradiation

Technical films often require special properties in order to be efficient, usable and durable in their application. Electron beam irradiation makes that possible which is often difficult or impossible to achieve through composition changes in film production: a change in film properties, e.g. in terms of heat restistance, hand-tearability, sterility or biodegradability.

celotec´s production facility offers the best possibilities for treating plastic films with electron beams on an industrial scale.

 

Which plastics can be treated with electron beams?

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Polypropylen (PP)
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Fluorpolymers (PVF, PVDF)
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Ethylen copolymers (EVA, Surlyn)
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Nylon (PA6, PA6-6)
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Polyethylen (HDPE, LDPE, UHMW-PE)
R
Polyacrylates
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Polyvinylchlorid (PVC)
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Synthesekautschuk (EPR, SBR)
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Natural rubber
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Polyurethane
R
Silicon and nitrile rubber
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Polybuthylen terephtalates (PBT)
R
EPDM
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Polybutadien

What property should your film have?

In our ESH system, accelerated electrons hit the molecules of the material and break their bonds. On this basis, chemical reactions are triggered that lead to changed properties. We will show you how to take advantage of processes such as electron beam cross-linking:

Cross-linking of polymers
For films with greater temperature stability and better resistance.
Polymerisation
For films with cured layers of laquer, paint or adhesive

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Splitting of polymer chains
For biodegradable packaging films or hand-tearable masking tapes
Sterilisation
For films free of bacteria, viruses and fungi

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What is possible with celotec´s highly functional E-Beam System?

The electron beam irradiator from celotec is part of a large roll-to-roll coating line. This system offers a wide range of options for the irradiation and coating of web-like media. Furthermore, the system has an optical web inspection system and offers the possibility of inline edge trimming. The coating section of the system, has UV units and excimer lamps in addition to the coating application unit.

A relaxing station, a web cleaning unit and a corona unit are installed for the pre-treatment of films. If required, films can be cut and wrapped crosswise and lenghtwise on a separate roll slitter.

Web width up to (mm)

Speed up to (m/min)

max. roll weight (t)

max. roll diameter (mm)

max. high-voltage irradiator(KV)

Dosage rate (kGy m/min)

In addition to irradiation, we offer you the best options for coating films and papers with radiation-curing coatings. Different coating systems in transparent and pigmented designs are available for a wide range of applications. In the same way, however, customised coatings can also be developed and precessed together to give films certain prperties or decorative character.

What is the process from laboratory sample to optimum film?

You would like to improve your plastic film by electron irradiation? No problem with celotec and celolab! This is because our excellently equipped surface laboratory also has an irradiation unit that can be used to carry out basic experiments.

We guide you through an efficient and transpartent process from your inquiry to the optimum product.

1. Request acceptance

You provide us with your film in the form of an approximately A4-sized sample and inform us of the desired properties and / or coatings

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2. Laboratory testing and irradiation

We determine the necessary parameters and irradiate your sample in the laboratory. In addition, we can also apply radiation-curing coatings to foils and cure them here on small scale.

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3. Sample testing

In the laboratory, we can directly measure the change in many properties of the irradiated film samples and optimise the irradiation parameters. These data are transferable to the large production plant.
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4. Initial production of a test roll

After the approval of the sample, we produce a test roll on the production line – we would be happy to invite you to do this event so that you can experience the quality and efficiency of our system on-site!
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