Ballpoint/Rollerball Pens: Writing Performance and Evaluation
Here, a brief history of the development of the ballpoint/rollerball pen and the fountain pen is presented. Their principle of operation is analogous that of multipart microfluidics-type devices, where capillarity–gravity drives the ink, a complex fluid, to flow in the confinement of a micrometer-si...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-04-01
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| Series: | Colloids and Interfaces |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2504-5377/7/2/29 |
| _version_ | 1797595391105957888 |
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| author | Jongju Lee Sohail Murad Alex Nikolov |
| author_facet | Jongju Lee Sohail Murad Alex Nikolov |
| author_sort | Jongju Lee |
| collection | DOAJ |
| description | Here, a brief history of the development of the ballpoint/rollerball pen and the fountain pen is presented. Their principle of operation is analogous that of multipart microfluidics-type devices, where capillarity–gravity drives the ink, a complex fluid, to flow in the confinement of a micrometer-sized canal or to lubricate a ball rotating in a socket. The differences in the operational writing principles of the fountain pen versus the ballpoint/rollerball pen are discussed. The ballpoint/rollerball pen’s manner of writing was monitored using lens end fiber optics and was digitally recorded. The ball rotation rate per unit length was monitored using a piezoelectric disk oscilloscope technique. The role of ink (a complex fluid) chemistry in the wetting phenomenon is elucidated. We also discuss methods for studying and evaluating ink–film–ball–paper surface wetting. The goal of the proposed research is to optimize and improve the writing performance of the ballpoint/rollerball pen. |
| first_indexed | 2024-03-11T02:36:46Z |
| format | Article |
| id | doaj.art-5bb1327bebf348b8b2eaba3ea927978a |
| institution | Directory Open Access Journal |
| issn | 2504-5377 |
| language | English |
| last_indexed | 2024-03-11T02:36:46Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Colloids and Interfaces |
| spelling | doaj.art-5bb1327bebf348b8b2eaba3ea927978a2023-11-18T09:53:23ZengMDPI AGColloids and Interfaces2504-53772023-04-01722910.3390/colloids7020029Ballpoint/Rollerball Pens: Writing Performance and EvaluationJongju Lee0Sohail Murad1Alex Nikolov2Department of Chemical and Biological Engineering, Illinois Institute of Technology, Chicago, IL 60616, USADepartment of Chemical and Biological Engineering, Illinois Institute of Technology, Chicago, IL 60616, USADepartment of Chemical and Biological Engineering, Illinois Institute of Technology, Chicago, IL 60616, USAHere, a brief history of the development of the ballpoint/rollerball pen and the fountain pen is presented. Their principle of operation is analogous that of multipart microfluidics-type devices, where capillarity–gravity drives the ink, a complex fluid, to flow in the confinement of a micrometer-sized canal or to lubricate a ball rotating in a socket. The differences in the operational writing principles of the fountain pen versus the ballpoint/rollerball pen are discussed. The ballpoint/rollerball pen’s manner of writing was monitored using lens end fiber optics and was digitally recorded. The ball rotation rate per unit length was monitored using a piezoelectric disk oscilloscope technique. The role of ink (a complex fluid) chemistry in the wetting phenomenon is elucidated. We also discuss methods for studying and evaluating ink–film–ball–paper surface wetting. The goal of the proposed research is to optimize and improve the writing performance of the ballpoint/rollerball pen.https://www.mdpi.com/2504-5377/7/2/29ballpoint penfountain penmicrofluidicswettingpiezoelectric disk transducerink-complex fluid |
| spellingShingle | Jongju Lee Sohail Murad Alex Nikolov Ballpoint/Rollerball Pens: Writing Performance and Evaluation Colloids and Interfaces ballpoint pen fountain pen microfluidics wetting piezoelectric disk transducer ink-complex fluid |
| title | Ballpoint/Rollerball Pens: Writing Performance and Evaluation |
| title_full | Ballpoint/Rollerball Pens: Writing Performance and Evaluation |
| title_fullStr | Ballpoint/Rollerball Pens: Writing Performance and Evaluation |
| title_full_unstemmed | Ballpoint/Rollerball Pens: Writing Performance and Evaluation |
| title_short | Ballpoint/Rollerball Pens: Writing Performance and Evaluation |
| title_sort | ballpoint rollerball pens writing performance and evaluation |
| topic | ballpoint pen fountain pen microfluidics wetting piezoelectric disk transducer ink-complex fluid |
| url | https://www.mdpi.com/2504-5377/7/2/29 |
| work_keys_str_mv | AT jongjulee ballpointrollerballpenswritingperformanceandevaluation AT sohailmurad ballpointrollerballpenswritingperformanceandevaluation AT alexnikolov ballpointrollerballpenswritingperformanceandevaluation |