Seminar on Roll-to-Roll Processing of Functional Films
Date: 16 Sep 2010 - 16 Sep 2010
Venue: SIMTech Auditorium, Tower Block, Level 3
Roll to roll processing of functional film can be considered new to the local manufacturing industry. Research in this area by academia in Singapore focuses mainly on material development. Test run of research ideas is thus limited by availability of facilities and manpower resource to operate the equipment. This seminar is designed to generate awareness to both the industry and the research academic of the opportunities to collaborate with SIMTech in various areas of R&D for functional film. This seminar will cover an introduction of gravure technique for making moulds for Roll-to-Roll process and Roll-to-Roll embossing process for fabrication of optical film. These two topics will be of relevance to the companies servicing the printing industry and those interested in the fabrication of large are optics. Participants will gain a clear understanding of some of the technologies involved in the fabrication moulds for Roll-to-Roll process.
9.30am: Opening Address
9.40am: Presentation by Dr Ernst-Rudolf Weidlich
- Reproduction of Micro Dimensions by Roto Gravure
10.25am Presentation by Dr Xin Li
- Roll-to-Roll UV Embossing Replication of Micro and Optical Film
Presentation 1: Reproduction of Micro Dimensions by Roto Gravure by Dr Ernst-Rudolf Weidlich
The presentation will cover the aspects of cylinder making for roto gravure, focusing on the technical possibilities of the company GRT in picture and line work reproduction on the print form. Using a high resolution laser exposure system of only two micrometer resolution, smallest information can be reproduced. This precise technique opens up a new dimension in brand protection, i.e. for the microtext in a very small height. Applications in micro embossing and printed electronics are increasing markets also for GRT. Microscopical pictures of these smallest structures done by this laser technique will be shown.
Presentation 2: Roll to Roll UV Embossing Replication of Micro and Optical Film by Dr Xin Li
Roll-to-roll UV embossing replication is a continuous manufacturing method which is able to produce large volume high quality nano and micro surface structure at relatively low cost. With increasing applications being exploited by employing nano and micro surface structure, roll-to-roll UV embossing has demonstrated to be a suitable and reliable manufacturing method to fabricate them. The process is able to fabricate the structure with depths from as small as few nanometers to several hundred microns. The presentation will cover the key elements of UV embossing technology: substrates, drum tooling, UV curing lacquer, embossing process, etc.
Dr Ernst-Rudolf Weidlich received his PhD from the University of Tuebingen, Institute of Applied Physics, Germany, in the topic of electron beam lithography. His expertise is in electron beam engraving, mechanical engraver enhancements and data preparation methods. He is the inventor of several international patents. Since 2005, he has been working with GRT GmbH & Co. KG as a R&D Manager to integrate new techniques in cylinder production, defining potentials and initiating projects with customers not only for improving quality, but also for venturing into new markets. GRT is a leading company in the consulting, development and production of all kinds of roto gravure cylinders for packaging and security printing in highest quality. The company's core competence is the micro structuring of information involving the use of laser with a unique resolution of two micrometers. This technique is capable of covering smallest gap design to high volume transfer in printing process with a high grade in evenness of layer.
Dr Xin Li obtained his D. Phil in Physical Chemistry from Oxford University. His work was to investigate the interfacial structure and in teraction of polymers, surfactants and proteins at the air/liquid and liquid / solid interface by using neutron and X-ray scattering. In 1999, he joined Ciba Speciality Chemicals' New Technology Group as Senior Scientist working on UV polymerisation, adhesion technology for difficult surface and novel polymers synthesis. In 2002, Dr Xin Li joined Microsharp Corporation Limited as Senior Group Leader and later became the Application Engineering Manager. He is currently the Vice President of Micro Optics and Optical Films business. He is the author of over forty publications and holds five patents.
This is a non-chargeable seminar and pre-registration is required. Seats are available on a first-come, first-served basis. To reserve a place, please register online.
Who Should Attend
Managers, engineering and researchers from printing industry, mould making industry, polymer processing industry; academics and research students from polytechnics and universities.
For technical enquiries: Dr Lau Soo Khim, Email: sklau@SIMTech.a-star.edu.sg; Tel: 6793 8434
For general enquiries: Alice Koh, Email: kohth@SCEI.a-star.edu.sg; Tel: 6793 8249