@article{farer_seyam_ghosh_batra_grant_lee_2003, title={Forming shaped/molded structures by integrating meltblowing and robotic technologies}, volume={73}, ISSN={["0040-5175"]}, DOI={10.1177/004051750307300103}, abstractNote={ A novel system is described that forms three-dimensional (3D) molded nonwoven structures through proper integration of a laboratory scale meltblown unit with a small die and a six-axis robot. The 3D fiberweb structures can be formed by deposition of fibers from the die of the meltblown unit, which is manipulated by the robot, on any desired 3D mold. The mold rotational and surface speeds can be controlled by an additional external axis. The die is connected by two flexible hoses to the melt extruder of the meltblown unit and a hot air supply system. This system directly sprays fibers onto a 3D mannequin mold to produce structures from polypropylene polymers. With varying degrees of success. several robot manipulation algorithms of fiber deposition on the mold are developed to accurately control the basis weight uniformity the fiberwebs. A rule-based control algorithm using a linear variable differential transducer to map the mold contour results in the greatest fiberweb basis weight uniformity. }, number={1}, journal={TEXTILE RESEARCH JOURNAL}, author={Farer, R and Seyam, AM and Ghosh, TK and Batra, SK and Grant, E and Lee, G}, year={2003}, month={Jan}, pages={15–21} } @article{farer_ghosh_seyam_grant_batra_2003, title={Study of meltblown structures formed by robotic and meltblowing integrated system: Impact of process parameters on fiber diameter distribution}, volume={12}, number={1}, journal={International Nonwovens Journal}, author={Farer, R. and Ghosh, T. K. and Seyam, A. M. and Grant, E. and Batra, S. K.}, year={2003}, pages={36–42} } @article{farer_seyam_ghosh_grant_batra_2002, title={Meltblown structures formed by a robotic and meltblowing integrated system: Impact of process parameters on fiber orientation and diameter distribution}, volume={72}, ISSN={["0040-5175"]}, DOI={10.1177/004051750207201201}, abstractNote={ In a previous publication, we described a novel system that forms three-dimensional (3D) structures on 3D molds and two-dimensional (2D) structures on a rotating drum through proper integration of a laboratory scale meltblown unit with a small die and a six-axis robot. In this paper, we investigate the impact of take-up speed. die-to-collector distance (DCD). polymer throughput rate. and attenuating air pressure on the fiber orien tation and diameter distribution of 2D structures formed by the system. We introduce a new parameter, the fiber stream approach angle, which can be precisely controlled by the robot, and discuss its impact on the meltblown structure. In the experimental range studied, fiber orientation and diameter distribution are significantly impacted by the parameters. Among these parameters. the fiber stream approach angle shows the highest effect on fiber orientation distribution. }, number={12}, journal={TEXTILE RESEARCH JOURNAL}, author={Farer, R and Seyam, AM and Ghosh, TK and Grant, E and Batra, SK}, year={2002}, month={Dec}, pages={1033–1040} } @article{ghosh_velu_farer_seyam_2001, title={Formation of shaped/molded structures meltblowing nonwoven structures}, volume={1}, number={1}, journal={Journal of Textile and Apparel Technology and Management}, author={Ghosh, T. K. and Velu, Y. and Farer, R. and Seyam, A.}, year={2001} }