This Article Full Text (PDF) References Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Goswami, B. C. Articles by Scardino, F. L. Search for Related Content Social Bookmarking                         What's this?

Influence of Fiber Geometry on the Punching-Force Characteristics of Webs During Needle Felting

Textile Research Institute, Princeton, N. J. 08540, U. S. A.

Tamas Beck

Textile Research Institute, Princeton, N. J. 08540, U. S. A.

Francis L. Scardino

Textile Research Institute, Princeton, N. J. 08540, U. S. A.

This study describes the effects of fiber surface and geometric properties on the punching-force characteristics of webs during the needling process. A small needle loom assembly (consisting of a needle board, stripper, and a bed plate unit) mounted on an Instron tensile tester was used to measure the punching forces generated during the needling process. The punching speed used in this investigation was much lower than that employed in industrial needle looming. The punching force encountered during the second cycle (with and without recovery times between the successive cycles) was used to characterize the efficiency of the needling and fiber reorientation process.

It was found that fiber linear density has a profound effect on the punching force of polyester fiber webs, while surface roughness, cross-sectional shape, length and crimp seemed to have little or no effect on the punching-force values. How ever, the interaction of crimp and length, linear density and crimp, and linear density and length had a significant influence on the punching force. Measurements of the punching force in successive cycling experiments showed that, in addition to fiber linear density, fiber length, crimp and cross-sectional shape also significantly affected the recovery behavior of the reoriented fibers.

Key Words: Polyester fiber webs. Web felts. Fiber surface • geometry • fiber linear density • cross-sectional shape. Needle pro cess • punching speed • punching-force ratio • cycles. Fiber orientation • crimp • length. Punching-force characteristics. Fiber geometry. Needle loom • Instron tensile tester.

Textile Research Journal, Vol. 42, No. 10, 605-612 (1972)
DOI: 10.1177/004051757204201013


CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter    What's this?