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Printing of conducting inks on paper

T.C. Claypole, E. Jewell, W.J. Ray, Y. Berri, Eifion Jewell Orcid Logo

Proceedings of the Technical Association of the Graphic Arts, TAGA

Swansea University Author: Eifion Jewell Orcid Logo

Abstract

Paper has many attractions as a substrate for the manufacture of flexible electronics, particularly the comparative ease of recycling and recovering the constituents of the inks. However, it is not as smooth as the polymer substrates and also does not normally have sufficient barrier properties for...

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Published in: Proceedings of the Technical Association of the Graphic Arts, TAGA
Published: 2004
Online Access: http://www.scopus.com/inward/record.url?eid=2-s2.0-23244453107&partnerID=MN8TOARS
URI: https://cronfa.swan.ac.uk/Record/cronfa27708
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fullrecord <?xml version="1.0"?><rfc1807><datestamp>2017-12-23T20:33:53.8535655</datestamp><bib-version>v2</bib-version><id>27708</id><entry>2016-05-05</entry><title>Printing of conducting inks on paper</title><swanseaauthors><author><sid>13dc152c178d51abfe0634445b0acf07</sid><ORCID>0000-0002-6894-2251</ORCID><firstname>Eifion</firstname><surname>Jewell</surname><name>Eifion Jewell</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2016-05-05</date><deptcode>MECH</deptcode><abstract>Paper has many attractions as a substrate for the manufacture of flexible electronics, particularly the comparative ease of recycling and recovering the constituents of the inks. However, it is not as smooth as the polymer substrates and also does not normally have sufficient barrier properties for sensitive reactive inks. A paper has been created that has sufficient smoothness for printing of electronics. As a first stage of the evaluation of this coated stock, a series of trials have been undertaken where appropriate images have been offset printed using a silver conducting ink.This paper presents an analysis of the images in terms appropriate for the manufacture of electronics. The surface roughness, edge straightness, defects (including shorts), the resistance of the lines and line gaps were measured using optical methods, white light ineterferrometry and resistance meters. These are evaluated through two print runs to provide consistency data as required for the manufacture of electronics. In the second print run, an overprint was used to increase the film thickness and hence potentially reduce the resistance of the conductors. The specified gap were improved compared to screen printing. Through a 2000 print run the variation in printed edge (largely a result of substrate roughness) was significant and reduced the printed feature size as &#x201C;shorts&#x201D; between adjacent tracks could not be guaranteed over the test length. Small deviations were seen in the gap width were evident between the print direction and cross sheet direction. The printed film thickness was difficult to measure using the white light interferrometry was estimated at approximately 1 micron. Measurement of track resistance confirmed the continuity between adjacent tracks and also implied that film thickness increased through the print run. Double printing of the ink layer led to an increase in track resistance, which was contrary to that expected. Possible reasons for this include the removal of ink from the first printed layer by the second ink application, the predominant transfer of the high resistance base at the second ink application and a lower transfer of the second ink film which is effectively insulated from the first ink film. The results are encouraging and show the potential of paper as a substrate for volume manufacture of disposable electronics. Prototype devices have already been produced from the sheets printed in the trial.</abstract><type>Conference Paper/Proceeding/Abstract</type><journal>Proceedings of the Technical Association of the Graphic Arts, TAGA</journal><publisher/><keywords>Offset lithography, paper, conductive ink</keywords><publishedDay>31</publishedDay><publishedMonth>12</publishedMonth><publishedYear>2004</publishedYear><publishedDate>2004-12-31</publishedDate><doi/><url>http://www.scopus.com/inward/record.url?eid=2-s2.0-23244453107&amp;amp;partnerID=MN8TOARS</url><notes/><college>COLLEGE NANME</college><department>Mechanical Engineering</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>MECH</DepartmentCode><institution>Swansea University</institution><apcterm/><lastEdited>2017-12-23T20:33:53.8535655</lastEdited><Created>2016-05-05T12:43:20.0825614</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering</level></path><authors><author><firstname>T.C.</firstname><surname>Claypole</surname><order>1</order></author><author><firstname>E.</firstname><surname>Jewell</surname><order>2</order></author><author><firstname>W.J.</firstname><surname>Ray</surname><order>3</order></author><author><firstname>Y.</firstname><surname>Berri</surname><order>4</order></author><author><firstname>Eifion</firstname><surname>Jewell</surname><orcid>0000-0002-6894-2251</orcid><order>5</order></author></authors><documents/><OutputDurs/></rfc1807>
spelling 2017-12-23T20:33:53.8535655 v2 27708 2016-05-05 Printing of conducting inks on paper 13dc152c178d51abfe0634445b0acf07 0000-0002-6894-2251 Eifion Jewell Eifion Jewell true false 2016-05-05 MECH Paper has many attractions as a substrate for the manufacture of flexible electronics, particularly the comparative ease of recycling and recovering the constituents of the inks. However, it is not as smooth as the polymer substrates and also does not normally have sufficient barrier properties for sensitive reactive inks. A paper has been created that has sufficient smoothness for printing of electronics. As a first stage of the evaluation of this coated stock, a series of trials have been undertaken where appropriate images have been offset printed using a silver conducting ink.This paper presents an analysis of the images in terms appropriate for the manufacture of electronics. The surface roughness, edge straightness, defects (including shorts), the resistance of the lines and line gaps were measured using optical methods, white light ineterferrometry and resistance meters. These are evaluated through two print runs to provide consistency data as required for the manufacture of electronics. In the second print run, an overprint was used to increase the film thickness and hence potentially reduce the resistance of the conductors. The specified gap were improved compared to screen printing. Through a 2000 print run the variation in printed edge (largely a result of substrate roughness) was significant and reduced the printed feature size as “shorts” between adjacent tracks could not be guaranteed over the test length. Small deviations were seen in the gap width were evident between the print direction and cross sheet direction. The printed film thickness was difficult to measure using the white light interferrometry was estimated at approximately 1 micron. Measurement of track resistance confirmed the continuity between adjacent tracks and also implied that film thickness increased through the print run. Double printing of the ink layer led to an increase in track resistance, which was contrary to that expected. Possible reasons for this include the removal of ink from the first printed layer by the second ink application, the predominant transfer of the high resistance base at the second ink application and a lower transfer of the second ink film which is effectively insulated from the first ink film. The results are encouraging and show the potential of paper as a substrate for volume manufacture of disposable electronics. Prototype devices have already been produced from the sheets printed in the trial. Conference Paper/Proceeding/Abstract Proceedings of the Technical Association of the Graphic Arts, TAGA Offset lithography, paper, conductive ink 31 12 2004 2004-12-31 http://www.scopus.com/inward/record.url?eid=2-s2.0-23244453107&amp;partnerID=MN8TOARS COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University 2017-12-23T20:33:53.8535655 2016-05-05T12:43:20.0825614 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering T.C. Claypole 1 E. Jewell 2 W.J. Ray 3 Y. Berri 4 Eifion Jewell 0000-0002-6894-2251 5
title Printing of conducting inks on paper
spellingShingle Printing of conducting inks on paper
Eifion Jewell
title_short Printing of conducting inks on paper
title_full Printing of conducting inks on paper
title_fullStr Printing of conducting inks on paper
title_full_unstemmed Printing of conducting inks on paper
title_sort Printing of conducting inks on paper
author_id_str_mv 13dc152c178d51abfe0634445b0acf07
author_id_fullname_str_mv 13dc152c178d51abfe0634445b0acf07_***_Eifion Jewell
author Eifion Jewell
author2 T.C. Claypole
E. Jewell
W.J. Ray
Y. Berri
Eifion Jewell
format Conference Paper/Proceeding/Abstract
container_title Proceedings of the Technical Association of the Graphic Arts, TAGA
publishDate 2004
institution Swansea University
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering
url http://www.scopus.com/inward/record.url?eid=2-s2.0-23244453107&amp;partnerID=MN8TOARS
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description Paper has many attractions as a substrate for the manufacture of flexible electronics, particularly the comparative ease of recycling and recovering the constituents of the inks. However, it is not as smooth as the polymer substrates and also does not normally have sufficient barrier properties for sensitive reactive inks. A paper has been created that has sufficient smoothness for printing of electronics. As a first stage of the evaluation of this coated stock, a series of trials have been undertaken where appropriate images have been offset printed using a silver conducting ink.This paper presents an analysis of the images in terms appropriate for the manufacture of electronics. The surface roughness, edge straightness, defects (including shorts), the resistance of the lines and line gaps were measured using optical methods, white light ineterferrometry and resistance meters. These are evaluated through two print runs to provide consistency data as required for the manufacture of electronics. In the second print run, an overprint was used to increase the film thickness and hence potentially reduce the resistance of the conductors. The specified gap were improved compared to screen printing. Through a 2000 print run the variation in printed edge (largely a result of substrate roughness) was significant and reduced the printed feature size as “shorts” between adjacent tracks could not be guaranteed over the test length. Small deviations were seen in the gap width were evident between the print direction and cross sheet direction. The printed film thickness was difficult to measure using the white light interferrometry was estimated at approximately 1 micron. Measurement of track resistance confirmed the continuity between adjacent tracks and also implied that film thickness increased through the print run. Double printing of the ink layer led to an increase in track resistance, which was contrary to that expected. Possible reasons for this include the removal of ink from the first printed layer by the second ink application, the predominant transfer of the high resistance base at the second ink application and a lower transfer of the second ink film which is effectively insulated from the first ink film. The results are encouraging and show the potential of paper as a substrate for volume manufacture of disposable electronics. Prototype devices have already been produced from the sheets printed in the trial.
published_date 2004-12-31T03:30:27Z
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