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Analysis and Design of a Broad-Width Coat-Hanger Die in the Melt Blowing Process

Research and development

Authors:

  • Meng Kai
    College of Textile and Clothing Engineering, Soochow University, Suzhou, P. R. China
  • Wang Xin Hou
    College of Textiles, Dong Hua University, Shanghai, P. R. China
  • Chen Qing Guan
    College of Textile and Clothing Engineering, Soochow University, Suzhou, P. R. China

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Abstract:

The coat-hanger die plays the role of distributing the molten polymer uniformly across its width so as to ensure the transverse uniformity of the product in the melt blowing process. This paper focused on the design of a broad- width coat-hanger die through combining multiple single dies. A single coat-hanger die was optimised first based on numerical simulation
and multi-membered evolution strategy. Subsequently two optimised coat-hanger dies were combined side by side. A satisfactory coefficient of variation value of 0.7828% at the combined die outlet was obtained through adjusting the position of the joint point. The results indicate the feasibility of designing broad- width coat-hanger die through combining multiple single dies.

Tags:

melts blowing process, coat-hanger die, optimal design, simulations.

Citation:

Meng, K.; Wang, X. H.; Chen Q. G. Analysis and Design of a Broad-Width Coat-Hanger Die in the Melt Blowing Process. FIBRES & TEXTILES in Eastern Europe 2012, 20, 2(91), 44-47.

Published in issue no 2 (91) / 2012, pages 44–47.

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