1. School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, People's Republic of China
2. Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, People's Republic of China
3. Shaanxi Provincial Key Laboratory of Printing and Packaging Engineering, Xi’an University of Technology, Xi’an 710048, People's Republic of China