Method for making a mushroom-type hook strip for a mechanical fastener

US5679302A · kind A · utility

Assignee

• Minnesota Mining and Manufacturing Company · US

Inventors

• Philip Glen Miller · Eagan, US
• William L. Melbye · Minneapolis, US
• Susan K. Nestegard · Windom, US
• Leigh E. Wood · Woodbury, US
• Marvin D. Lindseth · Windom, US
• Dale A. Bychinski · Windom, US

Key dates

• Filing date: Apr 16, 1993
• Grant date: Oct 21, 1997
• Expiry date: Apr 16, 2013

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C67/0044
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A mushroom-type hook strip that can be used in a hook-and-loop mechanical fastener. The hook strip includes a homogeneous backing of thermoplastic resin and, integral with the backing, a high density array of hooks including stems projecting from the backing and circular disc shaped heads at the ends of the stems opposite the backing. The large number, small size, and shape of the heads on the hooks allow them to engage the fibers in conventional types of fabrics and non-woven materials that are not normally used as the loop portions of hook and loop fasteners.