Papermakers fabric having stacked machine direction yarns

US5343896A · kind A · utility

Assignee

• Asten, Inc. · US

Inventors

• Ernst Schroder · Hannover, DE
• Henry J. Lee · Summerville, US

Key dates

• Filing date: Sep 25, 1992
• Grant date: Sep 6, 1994
• Expiry date: Sep 25, 2012

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/3203
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A papermakers fabric having a system of monofilament machine direction yarns (hereinafter MD yarns) which control the permeability of the fabric. The present weave provides for usage of high aspect ratio yarns as structural weave components. The system of MD yarns comprises multiple layers of yarns which are vertically stacked. Preferably, upper MD yarns define floats on the upper surface of the fabric and each upper MD yarn is grouped in a vertically stacked orientation with an intermediate and a lower MD yarn.